|
Inhibition of HIV-1 replication in a proliferating human T-cell line assayed using an XTT assay.
|
Human immunodeficiency virus 1
|
3.2
|
|
Journal : J. Med. Chem.
Title : Evaluation of selected chemotypes in coupled cellular and molecular target-based screens identifies novel HIV-1 zinc finger inhibitors.
Year : 1996
Volume : 39
Issue : 19
First Page : 3606
Last Page : 3616
Authors : Rice WG, Turpin JA, Schaeffer CA, Graham L, Clanton D, Buckheit RW, Zaharevitz D, Summers MF, Wallqvist A, Covell DG.
Abstract : Conservation of the Cys-Xaa2-Cys-Xaa4-His-Xaa4-Cys retroviral zinc finger sequences and their absolute requirement in both the early and late phases of retroviral replication make these chemically reactive structures prime antiviral targets. We recently reported that select 2,2'-dithiobisbenzamides (DIBAs) chemically modify the zinc finger Cys residues, resulting in release of zinc from the fingers and inhibition of HIV replication. In the current study we surveyed 21 categories of disulfide-based compounds from the chemical repository of the National Cancer Institute for their capacity to act as retroviral zinc finger inhibitors. Aromatic disulfides that exerted anti-HIV activity tended to cluster in the substituted aminobenzene, benzoate, and benzenesulfonamide disulfide subclasses. Only one thiuram derivative exerted moderate anti-HIV activity, while a number of nonaromatic thiosulfones and miscellaneous disulfide congeners were moderately antiviral. Two compounds (NSC 20625 and NSC 4493) demonstrated anti-cultures. The two compounds chemically modified the p7NC zinc fingers in two separate in vitro assays, and interatomic surface molecular modeling docked the compounds efficiently but differentially into the zinc finger domains. The combined efforts of rational drug selection, cell-based screening, and molecular target-based screening led to the identification of zinc finger inhibitors that can now be optimized by medicinal chemistry for the development of biopharmaceutically useful anti-HIV agents.
|
Inhibition of human MGL activity using [3H]2-oleoylglycerol substrate at 10 uM by liquid scintillation counting
|
Homo sapiens
|
50.0
%
|
|
Journal : J. Med. Chem.
Title : Bis(dialkylaminethiocarbonyl)disulfides as potent and selective monoglyceride lipase inhibitors.
Year : 2009
Volume : 52
Issue : 22
First Page : 7310
Last Page : 7314
Authors : Kapanda CN, Muccioli GG, Labar G, Poupaert JH, Lambert DM.
Abstract : Monoglyceride lipase (MGL) inhibition may offer an approach in treating diseases in which higher 2-arachidonoyglycerol activity would be beneficial. We report here the synthesis and pharmacological evaluation of bis(dialkylaminethiocarbonyl)disulfide derivatives as irreversible MGL inhibitors. Inhibition occurs through interactions with MGL C208 and C242 residues, and these derivatives exhibit high inhibition selectivity over fatty acid amide hydrolase, another endocannabinoid-hydrolyzing enzyme.
|
Antiproliferative activity against human MCF7 cells expressing BCA2 and estrogen receptor after 72 hrs by MTT assay
|
Homo sapiens
|
100.0
nM
|
|
Journal : J. Med. Chem.
Title : Exploring the structural requirements for inhibition of the ubiquitin E3 ligase breast cancer associated protein 2 (BCA2) as a treatment for breast cancer.
Year : 2010
Volume : 53
Issue : 7
First Page : 2757
Last Page : 2765
Authors : Brahemi G, Kona FR, Fiasella A, Buac D, Soukupová J, Brancale A, Burger AM, Westwell AD.
Abstract : The zinc-ejecting aldehyde dehydrogenase (ALDH) inhibitory drug disulfiram (DSF) was found to be a breast cancer-associated protein 2 (BCA2) inhibitor with potent antitumor activity. We herein describe our work in the synthesis and evaluation of new series of zinc-affinic molecules to explore the structural requirements for selective BCA2-inhibitory antitumor activity. An N(C=S)S-S motif was found to be required, based on selective activity in BCA2-expressing breast cancer cell lines and against recombinant BCA2 protein. Notably, the DSF analogs (3a and 3c) and dithio(peroxo)thioate compounds (5d and 5f) were found to have potent activity (submicromolar IC(50)) in BCA2 positive MCF-7 and T47D cells but were inactive (IC(50) > 10 microM) in BCA2 negative MDA-MB-231 breast cancer cells and the normal breast epithelial cell line MCF10A. Testing in the isogenic BCA2 +ve MDA-MB-231/ER cell line restored antitumor activity for compounds that were inactive in the BCA2 -ve MDA-MB-231 cell line. In contrast, structurally related dithiocarbamates and benzisothiazolones (lacking the disulfide bond) were all inactive. Compounds 5d and 5f were additionally found to lack ALDH-inhibitory activity, suggestive of selective E3 ligase-inhibitory activity and worthy of further development.
|
Antiproliferative activity against human MDA-MB-231 cells expressing BCA2 and ERalpha after 72 hrs by MTT assay
|
Homo sapiens
|
320.0
nM
|
|
Journal : J. Med. Chem.
Title : Exploring the structural requirements for inhibition of the ubiquitin E3 ligase breast cancer associated protein 2 (BCA2) as a treatment for breast cancer.
Year : 2010
Volume : 53
Issue : 7
First Page : 2757
Last Page : 2765
Authors : Brahemi G, Kona FR, Fiasella A, Buac D, Soukupová J, Brancale A, Burger AM, Westwell AD.
Abstract : The zinc-ejecting aldehyde dehydrogenase (ALDH) inhibitory drug disulfiram (DSF) was found to be a breast cancer-associated protein 2 (BCA2) inhibitor with potent antitumor activity. We herein describe our work in the synthesis and evaluation of new series of zinc-affinic molecules to explore the structural requirements for selective BCA2-inhibitory antitumor activity. An N(C=S)S-S motif was found to be required, based on selective activity in BCA2-expressing breast cancer cell lines and against recombinant BCA2 protein. Notably, the DSF analogs (3a and 3c) and dithio(peroxo)thioate compounds (5d and 5f) were found to have potent activity (submicromolar IC(50)) in BCA2 positive MCF-7 and T47D cells but were inactive (IC(50) > 10 microM) in BCA2 negative MDA-MB-231 breast cancer cells and the normal breast epithelial cell line MCF10A. Testing in the isogenic BCA2 +ve MDA-MB-231/ER cell line restored antitumor activity for compounds that were inactive in the BCA2 -ve MDA-MB-231 cell line. In contrast, structurally related dithiocarbamates and benzisothiazolones (lacking the disulfide bond) were all inactive. Compounds 5d and 5f were additionally found to lack ALDH-inhibitory activity, suggestive of selective E3 ligase-inhibitory activity and worthy of further development.
|
Antiproliferative activity against human T47D cells expressing BCA2 and estrogen receptor after 72 hrs by MTT assay
|
Homo sapiens
|
170.0
nM
|
|
Journal : J. Med. Chem.
Title : Exploring the structural requirements for inhibition of the ubiquitin E3 ligase breast cancer associated protein 2 (BCA2) as a treatment for breast cancer.
Year : 2010
Volume : 53
Issue : 7
First Page : 2757
Last Page : 2765
Authors : Brahemi G, Kona FR, Fiasella A, Buac D, Soukupová J, Brancale A, Burger AM, Westwell AD.
Abstract : The zinc-ejecting aldehyde dehydrogenase (ALDH) inhibitory drug disulfiram (DSF) was found to be a breast cancer-associated protein 2 (BCA2) inhibitor with potent antitumor activity. We herein describe our work in the synthesis and evaluation of new series of zinc-affinic molecules to explore the structural requirements for selective BCA2-inhibitory antitumor activity. An N(C=S)S-S motif was found to be required, based on selective activity in BCA2-expressing breast cancer cell lines and against recombinant BCA2 protein. Notably, the DSF analogs (3a and 3c) and dithio(peroxo)thioate compounds (5d and 5f) were found to have potent activity (submicromolar IC(50)) in BCA2 positive MCF-7 and T47D cells but were inactive (IC(50) > 10 microM) in BCA2 negative MDA-MB-231 breast cancer cells and the normal breast epithelial cell line MCF10A. Testing in the isogenic BCA2 +ve MDA-MB-231/ER cell line restored antitumor activity for compounds that were inactive in the BCA2 -ve MDA-MB-231 cell line. In contrast, structurally related dithiocarbamates and benzisothiazolones (lacking the disulfide bond) were all inactive. Compounds 5d and 5f were additionally found to lack ALDH-inhibitory activity, suggestive of selective E3 ligase-inhibitory activity and worthy of further development.
|
Cytotoxicity against human K562 cells expressing ALDH1 at 15 uM after 45 mins by flow cytometry based method
|
Homo sapiens
|
17.26
%
|
|
Journal : J. Med. Chem.
Title : Exploring the structural requirements for inhibition of the ubiquitin E3 ligase breast cancer associated protein 2 (BCA2) as a treatment for breast cancer.
Year : 2010
Volume : 53
Issue : 7
First Page : 2757
Last Page : 2765
Authors : Brahemi G, Kona FR, Fiasella A, Buac D, Soukupová J, Brancale A, Burger AM, Westwell AD.
Abstract : The zinc-ejecting aldehyde dehydrogenase (ALDH) inhibitory drug disulfiram (DSF) was found to be a breast cancer-associated protein 2 (BCA2) inhibitor with potent antitumor activity. We herein describe our work in the synthesis and evaluation of new series of zinc-affinic molecules to explore the structural requirements for selective BCA2-inhibitory antitumor activity. An N(C=S)S-S motif was found to be required, based on selective activity in BCA2-expressing breast cancer cell lines and against recombinant BCA2 protein. Notably, the DSF analogs (3a and 3c) and dithio(peroxo)thioate compounds (5d and 5f) were found to have potent activity (submicromolar IC(50)) in BCA2 positive MCF-7 and T47D cells but were inactive (IC(50) > 10 microM) in BCA2 negative MDA-MB-231 breast cancer cells and the normal breast epithelial cell line MCF10A. Testing in the isogenic BCA2 +ve MDA-MB-231/ER cell line restored antitumor activity for compounds that were inactive in the BCA2 -ve MDA-MB-231 cell line. In contrast, structurally related dithiocarbamates and benzisothiazolones (lacking the disulfide bond) were all inactive. Compounds 5d and 5f were additionally found to lack ALDH-inhibitory activity, suggestive of selective E3 ligase-inhibitory activity and worthy of further development.
|
Inhibition of ALDH1 in human K562 cells at 15 uM after 45 mins by flow cytometry based method relative to bodipy-aminoacetaldehyde
|
Homo sapiens
|
57.26
%
|
|
Journal : J. Med. Chem.
Title : Exploring the structural requirements for inhibition of the ubiquitin E3 ligase breast cancer associated protein 2 (BCA2) as a treatment for breast cancer.
Year : 2010
Volume : 53
Issue : 7
First Page : 2757
Last Page : 2765
Authors : Brahemi G, Kona FR, Fiasella A, Buac D, Soukupová J, Brancale A, Burger AM, Westwell AD.
Abstract : The zinc-ejecting aldehyde dehydrogenase (ALDH) inhibitory drug disulfiram (DSF) was found to be a breast cancer-associated protein 2 (BCA2) inhibitor with potent antitumor activity. We herein describe our work in the synthesis and evaluation of new series of zinc-affinic molecules to explore the structural requirements for selective BCA2-inhibitory antitumor activity. An N(C=S)S-S motif was found to be required, based on selective activity in BCA2-expressing breast cancer cell lines and against recombinant BCA2 protein. Notably, the DSF analogs (3a and 3c) and dithio(peroxo)thioate compounds (5d and 5f) were found to have potent activity (submicromolar IC(50)) in BCA2 positive MCF-7 and T47D cells but were inactive (IC(50) > 10 microM) in BCA2 negative MDA-MB-231 breast cancer cells and the normal breast epithelial cell line MCF10A. Testing in the isogenic BCA2 +ve MDA-MB-231/ER cell line restored antitumor activity for compounds that were inactive in the BCA2 -ve MDA-MB-231 cell line. In contrast, structurally related dithiocarbamates and benzisothiazolones (lacking the disulfide bond) were all inactive. Compounds 5d and 5f were additionally found to lack ALDH-inhibitory activity, suggestive of selective E3 ligase-inhibitory activity and worthy of further development.
|
PUBCHEM_BIOASSAY: High Throughput Screening Assay used to Identify Novel Compounds that Inhibit Mycobacterium Tuberculosis in 7H9 Media. (Class of assay: confirmatory)
|
None
|
780.0
nM
|
|
Title : PubChem BioAssay data set
|
PUBCHEM_BIOASSAY: High Throughput Screen to Identify Compounds that Suppress the Growth of Cells with a Deletion of the PTEN Tumor Suppressor - Dose Response. (Class of assay: confirmatory) [Related pubchem assays: 1045, 1004, 824, 999, 818, 827, 823 ]
|
None
|
87.0
nM
|
|
Title : PubChem BioAssay data set
|
PUBCHEM_BIOASSAY: High Throughput Screen to Identify Compounds that Suppress the Growth of Human Colon Tumor Cells Lacking Oncogenic Beta Casein Expression - Dose Response. (Class of assay: confirmatory) [Related pubchem assays: 1004, 824, 999, 818, 827, 823 ]
|
None
|
91.0
nM
|
|
Title : PubChem BioAssay data set
|
DRUGMATRIX: Adenosine A3 radioligand binding (ligand: AB-MECA)
|
None
|
356.0
nM
|
|
DRUGMATRIX: Adenosine A3 radioligand binding (ligand: AB-MECA)
|
None
|
201.0
nM
|
|
Title : DrugMatrix in vitro pharmacology data
Authors : Scott S. Auerbach, DrugMatrix¨ and ToxFX¨ Coordinator National Toxicology Program
Abstract : The DrugMatrix Pharmacology data is a subset of the data freely available from the National Toxicology Program. For more details see:https://ntp.niehs.nih.gov/drugmatrix/index.html
|
DRUGMATRIX: Chemokine CCR2B radioligand binding (ligand: [125I] MCP-1)
|
None
|
954.0
nM
|
|
Title : DrugMatrix in vitro pharmacology data
Authors : Scott S. Auerbach, DrugMatrix¨ and ToxFX¨ Coordinator National Toxicology Program
Abstract : The DrugMatrix Pharmacology data is a subset of the data freely available from the National Toxicology Program. For more details see:https://ntp.niehs.nih.gov/drugmatrix/index.html
|
DRUGMATRIX: Dopamine D3 radioligand binding (ligand: [3H] Spiperone)
|
None
|
368.0
nM
|
|
Title : DrugMatrix in vitro pharmacology data
Authors : Scott S. Auerbach, DrugMatrix¨ and ToxFX¨ Coordinator National Toxicology Program
Abstract : The DrugMatrix Pharmacology data is a subset of the data freely available from the National Toxicology Program. For more details see:https://ntp.niehs.nih.gov/drugmatrix/index.html
|
Inhibition of human liver OATP1B1 expressed in HEK293 Flp-In cells assessed as reduction in E17-betaG uptake at 20 uM by scintillation counting
|
Homo sapiens
|
8.5
%
|
|
Journal : J. Med. Chem.
Title : Classification of inhibitors of hepatic organic anion transporting polypeptides (OATPs): influence of protein expression on drug-drug interactions.
Year : 2012
Volume : 55
Issue : 10
First Page : 4740
Last Page : 4763
Authors : Karlgren M, Vildhede A, Norinder U, Wisniewski JR, Kimoto E, Lai Y, Haglund U, Artursson P.
Abstract : The hepatic organic anion transporting polypeptides (OATPs) influence the pharmacokinetics of several drug classes and are involved in many clinical drug-drug interactions. Predicting potential interactions with OATPs is, therefore, of value. Here, we developed in vitro and in silico models for identification and prediction of specific and general inhibitors of OATP1B1, OATP1B3, and OATP2B1. The maximal transport activity (MTA) of each OATP in human liver was predicted from transport kinetics and protein quantification. We then used MTA to predict the effects of a subset of inhibitors on atorvastatin uptake in vivo. Using a data set of 225 drug-like compounds, 91 OATP inhibitors were identified. In silico models indicated that lipophilicity and polar surface area are key molecular features of OATP inhibition. MTA predictions identified OATP1B1 and OATP1B3 as major determinants of atorvastatin uptake in vivo. The relative contributions to overall hepatic uptake varied with isoform specificities of the inhibitors.
|
Inhibition of human liver OATP1B3 expressed in HEK293 Flp-In cells assessed as reduction in [3H]E17-betaG uptake at 20 uM incubated for 5 mins by scintillation counting
|
Homo sapiens
|
-3.8
%
|
|
Journal : J. Med. Chem.
Title : Classification of inhibitors of hepatic organic anion transporting polypeptides (OATPs): influence of protein expression on drug-drug interactions.
Year : 2012
Volume : 55
Issue : 10
First Page : 4740
Last Page : 4763
Authors : Karlgren M, Vildhede A, Norinder U, Wisniewski JR, Kimoto E, Lai Y, Haglund U, Artursson P.
Abstract : The hepatic organic anion transporting polypeptides (OATPs) influence the pharmacokinetics of several drug classes and are involved in many clinical drug-drug interactions. Predicting potential interactions with OATPs is, therefore, of value. Here, we developed in vitro and in silico models for identification and prediction of specific and general inhibitors of OATP1B1, OATP1B3, and OATP2B1. The maximal transport activity (MTA) of each OATP in human liver was predicted from transport kinetics and protein quantification. We then used MTA to predict the effects of a subset of inhibitors on atorvastatin uptake in vivo. Using a data set of 225 drug-like compounds, 91 OATP inhibitors were identified. In silico models indicated that lipophilicity and polar surface area are key molecular features of OATP inhibition. MTA predictions identified OATP1B1 and OATP1B3 as major determinants of atorvastatin uptake in vivo. The relative contributions to overall hepatic uptake varied with isoform specificities of the inhibitors.
|
Inhibition of human liver OATP2B1 expressed in HEK293 Flp-In cells assessed as reduction in [3H]E3S uptake at 20 uM incubated for 5 mins by scintillation counting
|
Homo sapiens
|
15.5
%
|
|
Journal : J. Med. Chem.
Title : Classification of inhibitors of hepatic organic anion transporting polypeptides (OATPs): influence of protein expression on drug-drug interactions.
Year : 2012
Volume : 55
Issue : 10
First Page : 4740
Last Page : 4763
Authors : Karlgren M, Vildhede A, Norinder U, Wisniewski JR, Kimoto E, Lai Y, Haglund U, Artursson P.
Abstract : The hepatic organic anion transporting polypeptides (OATPs) influence the pharmacokinetics of several drug classes and are involved in many clinical drug-drug interactions. Predicting potential interactions with OATPs is, therefore, of value. Here, we developed in vitro and in silico models for identification and prediction of specific and general inhibitors of OATP1B1, OATP1B3, and OATP2B1. The maximal transport activity (MTA) of each OATP in human liver was predicted from transport kinetics and protein quantification. We then used MTA to predict the effects of a subset of inhibitors on atorvastatin uptake in vivo. Using a data set of 225 drug-like compounds, 91 OATP inhibitors were identified. In silico models indicated that lipophilicity and polar surface area are key molecular features of OATP inhibition. MTA predictions identified OATP1B1 and OATP1B3 as major determinants of atorvastatin uptake in vivo. The relative contributions to overall hepatic uptake varied with isoform specificities of the inhibitors.
|
Inhibition of mouse Ido2 transfected in HEK293T cells using L-tryptophan as substrate assessed as kynurenine formation at 20 uM after 45 mins by spectrophotometric analysis relative to control
|
Mus musculus
|
55.0
%
|
|
Journal : Bioorg. Med. Chem. Lett.
Title : Identification of selective inhibitors of indoleamine 2,3-dioxygenase 2.
Year : 2012
Volume : 22
Issue : 24
First Page : 7641
Last Page : 7646
Authors : Bakmiwewa SM, Fatokun AA, Tran A, Payne RJ, Hunt NH, Ball HJ.
Abstract : The kynurenine pathway is responsible for the breakdown of the majority of the essential amino acid, tryptophan (Trp). The first and rate-limiting step of the kynurenine pathway can be independently catalysed by tryptophan 2,3-dioxygenase (Tdo2), indoleamine 2,3-dioxygenase 1 (Ido1) or indoleamine 2,3-dioxygenase 2 (Ido2). Tdo2 or Ido1 enzymatic activity has been implicated in a number of actions of the kynurenine pathway, including immune evasion by tumors. IDO2 is expressed in several human pancreatic cancer cell lines, suggesting it also may play a role in tumorigenesis. Although Ido2 was originally suggested to be a target of the chemotherapeutic agent dextro-1-methyl-tryptophan, subsequent studies suggest this compound does not inhibit Ido2 activity. The development of selective Ido2 inhibitors could provide valuable tools for investigating its activity in tumor development and normal physiology. In this study, a library of Food and Drug Administration-approved drugs was screened for inhibition of mouse Ido2 enzymatic activity. A number of candidates were identified and IC(50) values of each compound for Ido1 and Ido2 were estimated. The Ido2 inhibitors were also tested for inhibition of Tdo2 activity. Our results showed that compounds from a class of drugs used to inhibit proton pumps were the most potent and selective Ido2 inhibitors identified in the library screen. These included tenatoprazole, which exhibited an IC(50) value of 1.8μM for Ido2 with no inhibition of Ido1 or Tdo2 activity detected at a concentration of 100μM tenatoprazole. These highly-selective Ido2 inhibitors will be useful for defining the distinct biological roles of the three Trp-catabolizing enzymes.
|
Inhibition of sodium fluorescein uptake in OATP1B1-transfected CHO cells at an equimolar substrate-inhibitor concentration of 10 uM
|
Cricetulus griseus
|
71.59
%
|
|
Journal : Mol. Pharmacol.
Title : Structure-based identification of OATP1B1/3 inhibitors.
Year : 2013
Volume : 83
Issue : 6
First Page : 1257
Last Page : 1267
Authors : De Bruyn T, van Westen GJ, Ijzerman AP, Stieger B, de Witte P, Augustijns PF, Annaert PP.
Abstract : Several recent studies show that inhibition of the hepatic transport proteins organic anion-transporting polypeptide 1B1 (OATP1B1) and 1B3 (OATP1B3) can result in clinically relevant drug-drug interactions (DDI). To avoid late-stage development drug failures due to OATP1B-mediated DDI, predictive in vitro and in silico methods should be implemented at an early stage of the drug candidate evaluation process. In the present study, we first developed a high-throughput in vitro transporter inhibition assay for the OATP1B subfamily. A total of 2000 compounds were tested as potential modulators of the uptake of the OATP1B substrate sodium fluorescein, in OATP1B1- or 1B3-transfected Chinese hamster ovary cells. At an equimolar substrate-inhibitor concentration of 10 µM, 212 and 139 molecules were identified as OATP1B1 and OATP1B3 inhibitors, respectively (minimum 50% inhibition). For 69 compounds, previously not identified as OATP1B inhibitors, concentration-dependent inhibition was also determined, yielding Ki values ranging from 0.06 to 6.5 µM. Based on these in vitro data, we subsequently developed a proteochemometrics-based in silico model, which predicted OATP1B inhibitors in the test group (20% of the dataset) with high specificity (86%) and sensitivity (78%). Moreover, several physicochemical compound properties and substructures related to OATP1B1/1B3 inhibition or inactivity were identified. Finally, model performance was prospectively verified with a set of 54 compounds not included in the original dataset. This validation indicated that 80 and 74% of the compounds were correctly classified for OATP1B1 and OATP1B3 inhibition, respectively.
|
Inhibition of sodium fluorescein uptake in OATP1B3-transfected CHO cells at an equimolar substrate-inhibitor concentration of 10 uM
|
Cricetulus griseus
|
64.06
%
|
|
Journal : Mol. Pharmacol.
Title : Structure-based identification of OATP1B1/3 inhibitors.
Year : 2013
Volume : 83
Issue : 6
First Page : 1257
Last Page : 1267
Authors : De Bruyn T, van Westen GJ, Ijzerman AP, Stieger B, de Witte P, Augustijns PF, Annaert PP.
Abstract : Several recent studies show that inhibition of the hepatic transport proteins organic anion-transporting polypeptide 1B1 (OATP1B1) and 1B3 (OATP1B3) can result in clinically relevant drug-drug interactions (DDI). To avoid late-stage development drug failures due to OATP1B-mediated DDI, predictive in vitro and in silico methods should be implemented at an early stage of the drug candidate evaluation process. In the present study, we first developed a high-throughput in vitro transporter inhibition assay for the OATP1B subfamily. A total of 2000 compounds were tested as potential modulators of the uptake of the OATP1B substrate sodium fluorescein, in OATP1B1- or 1B3-transfected Chinese hamster ovary cells. At an equimolar substrate-inhibitor concentration of 10 µM, 212 and 139 molecules were identified as OATP1B1 and OATP1B3 inhibitors, respectively (minimum 50% inhibition). For 69 compounds, previously not identified as OATP1B inhibitors, concentration-dependent inhibition was also determined, yielding Ki values ranging from 0.06 to 6.5 µM. Based on these in vitro data, we subsequently developed a proteochemometrics-based in silico model, which predicted OATP1B inhibitors in the test group (20% of the dataset) with high specificity (86%) and sensitivity (78%). Moreover, several physicochemical compound properties and substructures related to OATP1B1/1B3 inhibition or inactivity were identified. Finally, model performance was prospectively verified with a set of 54 compounds not included in the original dataset. This validation indicated that 80 and 74% of the compounds were correctly classified for OATP1B1 and OATP1B3 inhibition, respectively.
|
Inhibition of IDO1 (unknown origin) at highest soluble concentration using L-tryptophan substrate incubated for 60 mins by HPLC
|
Homo sapiens
|
0.0
%
|
|
Journal : Eur. J. Med. Chem.
Title : Detailed analysis and follow-up studies of a high-throughput screening for indoleamine 2,3-dioxygenase 1 (IDO1) inhibitors.
Year : 2014
Volume : 84
First Page : 284
Last Page : 301
Authors : Röhrig UF, Majjigapu SR, Chambon M, Bron S, Pilotte L, Colau D, Van den Eynde BJ, Turcatti G, Vogel P, Zoete V, Michielin O.
Abstract : Indoleamine 2,3-dioxygenase 1 (IDO1) is a key regulator of immune responses and therefore an important therapeutic target for the treatment of diseases that involve pathological immune escape, such as cancer. Here, we describe a robust and sensitive high-throughput screen (HTS) for IDO1 inhibitors using the Prestwick Chemical Library of 1200 FDA-approved drugs and the Maybridge HitFinder Collection of 14,000 small molecules. Of the 60 hits selected for follow-up studies, 14 displayed IC50 values below 20 μM under the secondary assay conditions, and 4 showed an activity in cellular tests. In view of the high attrition rate we used both experimental and computational techniques to identify and to characterize compounds inhibiting IDO1 through unspecific inhibition mechanisms such as chemical reactivity, redox cycling, or aggregation. One specific IDO1 inhibitor scaffold, the imidazole antifungal agents, was chosen for rational structure-based lead optimization, which led to more soluble and smaller compounds with micromolar activity.
|
PubChem BioAssay. Leishmania major promastigote EC50 determinations. (Class of assay: confirmatory)
|
None
|
249.0
nM
|
|
Title : PubChem BioAssay data set
|
Inhibition of chymotrypsin like activity of 20S proteasome (unknown origin) using suc-leu-leu-val-tyr-AMC as substrate at 10 uM after 40 mins in presence of 1 uM copper by fluorescence assay
|
Homo sapiens
|
92.0
%
|
|
Journal : Bioorg. Med. Chem. Lett.
Title : Cupriphilic compounds to aid in proteasome inhibition.
Year : 2016
Volume : 26
Issue : 15
First Page : 3826
Last Page : 3829
Authors : Mukherjee S, Sparks R, Metcalf R, Brooks W, Daniel K, Guida WC.
Abstract : It has been found that tumor cells and tissues, compared to normal cells, have higher levels of copper and possibly other metal ions. This presents a potential vulnerability of tumor cells that can serve as a physiological difference between cancer cells and normal cells and allows design of compounds that selectively target tumor cells while sparing normal cells. Recently we have identified compounds that have potential to inhibit the proteasome in tumor cells and induce cell death by mobilizing endogenous tumor copper resulting in in cellulo activation of the compound. These compounds hence act as pro-drugs, becoming active drugs in tumor cells with high copper content but remaining essentially inactive in normal cells, thereby greatly reducing adverse effects in patients. Such use would be of significant benefit in early detection and treatment of cancers, in particular, aggressive cancers such as pancreatic cancer which is usually not detected until it has reached an advanced stage. Six compounds were identified following virtual screening of the NCI Diversity Set with our proteasome computer model followed by confirmation with a biochemical assay that showed significant inhibition of the proteasome by the compounds in the presence of copper ions. In a dose response assay, NSC 37408 (6,7-dihydroxy-1-benzofuran-3-one), our best compound, exhibited an IC50 of 3μM in the presence of 100nM copper.
|
Inhibition of recombinant human N-terminal His6-tagged and C-terminal Strep-tagged MAGL expressed in Escherichia coli Rosetta using [3H]2-OG as substrate after 10 mins by liquid scintillation counting method
|
Homo sapiens
|
360.0
nM
|
|
Journal : J Med Chem
Title : Therapeutic Potential of Fatty Acid Amide Hydrolase, Monoacylglycerol Lipase, and N-Acylethanolamine Acid Amidase Inhibitors.
Year : 2017
Volume : 60
Issue : 1
First Page : 4
Last Page : 46
Authors : Tuo W, Leleu-Chavain N, Spencer J, Sansook S, Millet R, Chavatte P.
Abstract : Fatty acid ethanolamides (FAEs) and endocannabinoids (ECs) have been shown to alleviate pain and inflammation, regulate motility and appetite, and produce anticancer, anxiolytic, and neuroprotective efficacies via cannabinoid receptor type 1 (CB1) or type 2 (CB2) or via peroxisome proliferator-activated receptor α (PPAR-α) stimulation. FAEs and ECs are synthesized by a series of endogenous enzymes, including N-acylphosphatidylethanolaminephospholipase D (NAPE-PLD), diacylglycerol lipase (DAGL), or phospholipase C (PLC), and their metabolism is mediated by several metabolic enzymes, including fatty acid amide hydrolase (FAAH), monoacylglycerol lipase (MAGL), N-acylethanolamine acid amidase (NAAA), or cyclooxygenase 2 (COX-2). Over the past decades, increasing the concentration of FAEs and ECs through the inhibition of degrading enzymes has been considered to be a viable therapeutic approach to enhance their antinociceptive and anti-inflammatory effects, as well as to protect the nervous system.
|
Inhibition of wild type recombinant human histone lysine methyltransferase G9a (913 to 1193 residues) expressed in Escherichia coli Rosetta BL21 DE3 PlysS at 100 uM using ARTKQTARKSTGGKA as substrate preincubated for 5 mins followed by substrate/SAM addition measured after 60 mins by MALDI-TOF MS analysis
|
Homo sapiens
|
50.0
%
|
|
Journal : Bioorg Med Chem Lett
Title : Inhibition of histone lysine methyltransferases G9a and GLP by ejection of structural Zn(II).
Year : 2018
Volume : 28
Issue : 7
First Page : 1234
Last Page : 1238
Authors : Lenstra DC, Al Temimi AHK, Mecinović J.
Abstract : Histone lysine methyltransferases G9a and GLP are validated targets for the development of new epigenetic drugs. Most, if not all, inhibitors of G9a and GLP target the histone substrate binding site or/and the S-adenosylmethionine cosubstrate binding site. Here, we report an alternative approach for inhibiting the methyltransferase activity of G9a and GLP. For proper folding and enzymatic activity, G9a and GLP contain structural zinc fingers, one of them being adjacent to the S-adenosylmethionine binding site. Our work demonstrates that targeting these labile zinc fingers with electrophilic small molecules results in ejection of structural zinc ions, and consequently inhibition of the methyltransferase activity. Very effective Zn(II) ejection and inhibition of G9a and GLP was observed with clinically used ebselen, disulfiram and cisplatin.
|
Inhibition of wild type recombinant human histone lysine methyltransferase GLP (951 to 1235 residues) expressed in Escherichia coli Rosetta BL21 DE3 PlysS at 100 uM using ARTKQTARKSTGGKA as substrate preincubated for 5 mins followed by substrate/SAM addition measured after 60 mins by MALDI-TOF MS analysis
|
Homo sapiens
|
50.0
%
|
|
Journal : Bioorg Med Chem Lett
Title : Inhibition of histone lysine methyltransferases G9a and GLP by ejection of structural Zn(II).
Year : 2018
Volume : 28
Issue : 7
First Page : 1234
Last Page : 1238
Authors : Lenstra DC, Al Temimi AHK, Mecinović J.
Abstract : Histone lysine methyltransferases G9a and GLP are validated targets for the development of new epigenetic drugs. Most, if not all, inhibitors of G9a and GLP target the histone substrate binding site or/and the S-adenosylmethionine cosubstrate binding site. Here, we report an alternative approach for inhibiting the methyltransferase activity of G9a and GLP. For proper folding and enzymatic activity, G9a and GLP contain structural zinc fingers, one of them being adjacent to the S-adenosylmethionine binding site. Our work demonstrates that targeting these labile zinc fingers with electrophilic small molecules results in ejection of structural zinc ions, and consequently inhibition of the methyltransferase activity. Very effective Zn(II) ejection and inhibition of G9a and GLP was observed with clinically used ebselen, disulfiram and cisplatin.
|
Inhibition of wild type recombinant human histone lysine methyltransferase G9a (913 to 1193 residues) expressed in Escherichia coli Rosetta BL21 DE3 PlysS using ARTKQTARKSTGGKA as substrate preincubated for 5 mins followed by substrate/SAM addition measured after 60 mins by MALDI-TOF MS analysis
|
Homo sapiens
|
600.0
nM
|
|
Journal : Bioorg Med Chem Lett
Title : Inhibition of histone lysine methyltransferases G9a and GLP by ejection of structural Zn(II).
Year : 2018
Volume : 28
Issue : 7
First Page : 1234
Last Page : 1238
Authors : Lenstra DC, Al Temimi AHK, Mecinović J.
Abstract : Histone lysine methyltransferases G9a and GLP are validated targets for the development of new epigenetic drugs. Most, if not all, inhibitors of G9a and GLP target the histone substrate binding site or/and the S-adenosylmethionine cosubstrate binding site. Here, we report an alternative approach for inhibiting the methyltransferase activity of G9a and GLP. For proper folding and enzymatic activity, G9a and GLP contain structural zinc fingers, one of them being adjacent to the S-adenosylmethionine binding site. Our work demonstrates that targeting these labile zinc fingers with electrophilic small molecules results in ejection of structural zinc ions, and consequently inhibition of the methyltransferase activity. Very effective Zn(II) ejection and inhibition of G9a and GLP was observed with clinically used ebselen, disulfiram and cisplatin.
|
Inhibition of recombinant human LOX expressed in HEK293 cells using diaminopentane as substrate preincubated for 30 mins followed by substrate addition measured after 1 hr by fluorimetric method
|
Homo sapiens
|
320.0
nM
|
|
Journal : Bioorg Med Chem Lett
Title : Inhibition of the LOX enzyme family members with old and new ligands. Selectivity analysis revisited.
Year : 2018
Volume : 28
Issue : 18
First Page : 3113
Last Page : 3118
Authors : Hajdú I, Kardos J, Major B, Fabó G, Lőrincz Z, Cseh S, Dormán G.
Abstract : Lysyl oxidase (LOX) enzymes as potential drug targets maintain constant attention in the therapy of fibrosis, cancer and metastasis. In order to measure the inhibitory activity of small molecules on the LOX enzyme family members a fluorometric activity screening method was developed. During assay validation, previously reported non-selective small inhibitor molecules (BAPN, MCP-1, thiram, disulfiram) were investigated on all of the major LOX enzymes. We confirmed that MCP-1, thiram, disulfiram are in fact pan-inhibitors, while BAPN inhibits only LOX-like enzymes (preferably LOX-like-protein-2, LOXL2) in contrast to the previous reports. We measured the LOX inhibitory profile of a small targeted library generated by 2D ligand-based chemoinformatics methods. Ten hits (10.4% hit rate) were identified, and the compounds showed distinct activity profiles. Potential inhibitors were also identified for LOX-like-protein-3 (LOXL3) and LOX-like-protein-4 (LOXL4), that are considered as emerging drug targets in the therapy of melanoma and gastric cancer.
|
Inhibition of recombinant LOXL2 (unknown origin) expressed in NS0 cells using diaminopentane as substrate preincubated for 30 mins followed by substrate addition measured after 1 hr by fluorimetric method
|
Homo sapiens
|
150.0
nM
|
|
Journal : Bioorg Med Chem Lett
Title : Inhibition of the LOX enzyme family members with old and new ligands. Selectivity analysis revisited.
Year : 2018
Volume : 28
Issue : 18
First Page : 3113
Last Page : 3118
Authors : Hajdú I, Kardos J, Major B, Fabó G, Lőrincz Z, Cseh S, Dormán G.
Abstract : Lysyl oxidase (LOX) enzymes as potential drug targets maintain constant attention in the therapy of fibrosis, cancer and metastasis. In order to measure the inhibitory activity of small molecules on the LOX enzyme family members a fluorometric activity screening method was developed. During assay validation, previously reported non-selective small inhibitor molecules (BAPN, MCP-1, thiram, disulfiram) were investigated on all of the major LOX enzymes. We confirmed that MCP-1, thiram, disulfiram are in fact pan-inhibitors, while BAPN inhibits only LOX-like enzymes (preferably LOX-like-protein-2, LOXL2) in contrast to the previous reports. We measured the LOX inhibitory profile of a small targeted library generated by 2D ligand-based chemoinformatics methods. Ten hits (10.4% hit rate) were identified, and the compounds showed distinct activity profiles. Potential inhibitors were also identified for LOX-like-protein-3 (LOXL3) and LOX-like-protein-4 (LOXL4), that are considered as emerging drug targets in the therapy of melanoma and gastric cancer.
|
Inhibition of recombinant human LOXL3 expressed in CHO cells using diaminopentane as substrate preincubated for 30 mins followed by substrate addition measured after 1 hr by fluorimetric method
|
Homo sapiens
|
93.0
nM
|
|
Journal : Bioorg Med Chem Lett
Title : Inhibition of the LOX enzyme family members with old and new ligands. Selectivity analysis revisited.
Year : 2018
Volume : 28
Issue : 18
First Page : 3113
Last Page : 3118
Authors : Hajdú I, Kardos J, Major B, Fabó G, Lőrincz Z, Cseh S, Dormán G.
Abstract : Lysyl oxidase (LOX) enzymes as potential drug targets maintain constant attention in the therapy of fibrosis, cancer and metastasis. In order to measure the inhibitory activity of small molecules on the LOX enzyme family members a fluorometric activity screening method was developed. During assay validation, previously reported non-selective small inhibitor molecules (BAPN, MCP-1, thiram, disulfiram) were investigated on all of the major LOX enzymes. We confirmed that MCP-1, thiram, disulfiram are in fact pan-inhibitors, while BAPN inhibits only LOX-like enzymes (preferably LOX-like-protein-2, LOXL2) in contrast to the previous reports. We measured the LOX inhibitory profile of a small targeted library generated by 2D ligand-based chemoinformatics methods. Ten hits (10.4% hit rate) were identified, and the compounds showed distinct activity profiles. Potential inhibitors were also identified for LOX-like-protein-3 (LOXL3) and LOX-like-protein-4 (LOXL4), that are considered as emerging drug targets in the therapy of melanoma and gastric cancer.
|
Inhibition of recombinant human LOXL4 expressed in baculovirus infected insect cells using diaminopentane as substrate preincubated for 30 mins followed by substrate addition measured after 1 hr by fluorimetric method
|
Homo sapiens
|
59.0
nM
|
|
Journal : Bioorg Med Chem Lett
Title : Inhibition of the LOX enzyme family members with old and new ligands. Selectivity analysis revisited.
Year : 2018
Volume : 28
Issue : 18
First Page : 3113
Last Page : 3118
Authors : Hajdú I, Kardos J, Major B, Fabó G, Lőrincz Z, Cseh S, Dormán G.
Abstract : Lysyl oxidase (LOX) enzymes as potential drug targets maintain constant attention in the therapy of fibrosis, cancer and metastasis. In order to measure the inhibitory activity of small molecules on the LOX enzyme family members a fluorometric activity screening method was developed. During assay validation, previously reported non-selective small inhibitor molecules (BAPN, MCP-1, thiram, disulfiram) were investigated on all of the major LOX enzymes. We confirmed that MCP-1, thiram, disulfiram are in fact pan-inhibitors, while BAPN inhibits only LOX-like enzymes (preferably LOX-like-protein-2, LOXL2) in contrast to the previous reports. We measured the LOX inhibitory profile of a small targeted library generated by 2D ligand-based chemoinformatics methods. Ten hits (10.4% hit rate) were identified, and the compounds showed distinct activity profiles. Potential inhibitors were also identified for LOX-like-protein-3 (LOXL3) and LOX-like-protein-4 (LOXL4), that are considered as emerging drug targets in the therapy of melanoma and gastric cancer.
|
Inhibition of recombinant human LOX expressed in HEK293 cells at 10 uM using diaminopentane as substrate preincubated for 30 mins followed by substrate addition measured after 1 hr by fluorimetric method relative to control
|
Homo sapiens
|
40.0
%
|
|
Journal : Bioorg Med Chem Lett
Title : Inhibition of the LOX enzyme family members with old and new ligands. Selectivity analysis revisited.
Year : 2018
Volume : 28
Issue : 18
First Page : 3113
Last Page : 3118
Authors : Hajdú I, Kardos J, Major B, Fabó G, Lőrincz Z, Cseh S, Dormán G.
Abstract : Lysyl oxidase (LOX) enzymes as potential drug targets maintain constant attention in the therapy of fibrosis, cancer and metastasis. In order to measure the inhibitory activity of small molecules on the LOX enzyme family members a fluorometric activity screening method was developed. During assay validation, previously reported non-selective small inhibitor molecules (BAPN, MCP-1, thiram, disulfiram) were investigated on all of the major LOX enzymes. We confirmed that MCP-1, thiram, disulfiram are in fact pan-inhibitors, while BAPN inhibits only LOX-like enzymes (preferably LOX-like-protein-2, LOXL2) in contrast to the previous reports. We measured the LOX inhibitory profile of a small targeted library generated by 2D ligand-based chemoinformatics methods. Ten hits (10.4% hit rate) were identified, and the compounds showed distinct activity profiles. Potential inhibitors were also identified for LOX-like-protein-3 (LOXL3) and LOX-like-protein-4 (LOXL4), that are considered as emerging drug targets in the therapy of melanoma and gastric cancer.
|
Inhibition of recombinant LOXL2 (unknown origin) expressed in NS0 cells at 10 uM using diaminopentane as substrate preincubated for 30 mins followed by substrate addition measured after 1 hr by fluorimetric method relative to control
|
Homo sapiens
|
40.0
%
|
|
Journal : Bioorg Med Chem Lett
Title : Inhibition of the LOX enzyme family members with old and new ligands. Selectivity analysis revisited.
Year : 2018
Volume : 28
Issue : 18
First Page : 3113
Last Page : 3118
Authors : Hajdú I, Kardos J, Major B, Fabó G, Lőrincz Z, Cseh S, Dormán G.
Abstract : Lysyl oxidase (LOX) enzymes as potential drug targets maintain constant attention in the therapy of fibrosis, cancer and metastasis. In order to measure the inhibitory activity of small molecules on the LOX enzyme family members a fluorometric activity screening method was developed. During assay validation, previously reported non-selective small inhibitor molecules (BAPN, MCP-1, thiram, disulfiram) were investigated on all of the major LOX enzymes. We confirmed that MCP-1, thiram, disulfiram are in fact pan-inhibitors, while BAPN inhibits only LOX-like enzymes (preferably LOX-like-protein-2, LOXL2) in contrast to the previous reports. We measured the LOX inhibitory profile of a small targeted library generated by 2D ligand-based chemoinformatics methods. Ten hits (10.4% hit rate) were identified, and the compounds showed distinct activity profiles. Potential inhibitors were also identified for LOX-like-protein-3 (LOXL3) and LOX-like-protein-4 (LOXL4), that are considered as emerging drug targets in the therapy of melanoma and gastric cancer.
|
Inhibition of recombinant human LOXL3 expressed in CHO cells at 10 uM using diaminopentane as substrate preincubated for 30 mins followed by substrate addition measured after 1 hr by fluorimetric method relative to control
|
Homo sapiens
|
40.0
%
|
|
Journal : Bioorg Med Chem Lett
Title : Inhibition of the LOX enzyme family members with old and new ligands. Selectivity analysis revisited.
Year : 2018
Volume : 28
Issue : 18
First Page : 3113
Last Page : 3118
Authors : Hajdú I, Kardos J, Major B, Fabó G, Lőrincz Z, Cseh S, Dormán G.
Abstract : Lysyl oxidase (LOX) enzymes as potential drug targets maintain constant attention in the therapy of fibrosis, cancer and metastasis. In order to measure the inhibitory activity of small molecules on the LOX enzyme family members a fluorometric activity screening method was developed. During assay validation, previously reported non-selective small inhibitor molecules (BAPN, MCP-1, thiram, disulfiram) were investigated on all of the major LOX enzymes. We confirmed that MCP-1, thiram, disulfiram are in fact pan-inhibitors, while BAPN inhibits only LOX-like enzymes (preferably LOX-like-protein-2, LOXL2) in contrast to the previous reports. We measured the LOX inhibitory profile of a small targeted library generated by 2D ligand-based chemoinformatics methods. Ten hits (10.4% hit rate) were identified, and the compounds showed distinct activity profiles. Potential inhibitors were also identified for LOX-like-protein-3 (LOXL3) and LOX-like-protein-4 (LOXL4), that are considered as emerging drug targets in the therapy of melanoma and gastric cancer.
|
Inhibition of recombinant human LOXL4 expressed in baculovirus infected insect cells at 10 uM using diaminopentane as substrate preincubated for 30 mins followed by substrate addition measured after 1 hr by fluorimetric method relative to control
|
Homo sapiens
|
40.0
%
|
|
Journal : Bioorg Med Chem Lett
Title : Inhibition of the LOX enzyme family members with old and new ligands. Selectivity analysis revisited.
Year : 2018
Volume : 28
Issue : 18
First Page : 3113
Last Page : 3118
Authors : Hajdú I, Kardos J, Major B, Fabó G, Lőrincz Z, Cseh S, Dormán G.
Abstract : Lysyl oxidase (LOX) enzymes as potential drug targets maintain constant attention in the therapy of fibrosis, cancer and metastasis. In order to measure the inhibitory activity of small molecules on the LOX enzyme family members a fluorometric activity screening method was developed. During assay validation, previously reported non-selective small inhibitor molecules (BAPN, MCP-1, thiram, disulfiram) were investigated on all of the major LOX enzymes. We confirmed that MCP-1, thiram, disulfiram are in fact pan-inhibitors, while BAPN inhibits only LOX-like enzymes (preferably LOX-like-protein-2, LOXL2) in contrast to the previous reports. We measured the LOX inhibitory profile of a small targeted library generated by 2D ligand-based chemoinformatics methods. Ten hits (10.4% hit rate) were identified, and the compounds showed distinct activity profiles. Potential inhibitors were also identified for LOX-like-protein-3 (LOXL3) and LOX-like-protein-4 (LOXL4), that are considered as emerging drug targets in the therapy of melanoma and gastric cancer.
|
Antiviral activity determined as inhibition of SARS-CoV-2 induced cytotoxicity of Caco-2 cells at 10 uM after 48 hours by high content imaging
|
Homo sapiens
|
0.44
%
|
|
Title : Identification of inhibitors of SARS-CoV-2 in-vitro cellular toxicity in human (Caco-2) cells using a large scale drug repurposing collection
Year : 2020
Authors : Bernhard Ellinger, Denisa Bojkova, Andrea Zaliani, Jindrich Cinatl, Carsten Claussen, Sandra Westhaus, Jeanette Reinshagen, Maria Kuzikov, Markus Wolf, Gerd Geisslinger, Philip Gribbon, Sandra Ciesek
Abstract : To identify possible candidates for progression towards clinical studies against SARS-CoV-2, we screened a well-defined collection of 5632 compounds including 3488 compounds which have undergone clinical investigations (marketed drugs, phases 1 -3, and withdrawn) across 600 indications. Compounds were screened for their inhibition of viral induced cytotoxicity using the human epithelial colorectal adenocarcinoma cell line Caco-2 and a SARS-CoV-2 isolate. The primary screen of 5632 compounds gave 271 hits. A total of 64 compounds with IC50 <20 µM were identified, including 19 compounds with IC50 < 1 µM. Of this confirmed hit population, 90% have not yet been previously reported as active against SARS-CoV-2 in-vitro cell assays. Some 37 of the actives are launched drugs, 19 are in phases 1-3 and 10 pre-clinical. Several inhibitors were associated with modulation of host pathways including kinase signaling P53 activation, ubiquitin pathways and PDE activity modulation, with long chain acyl transferases were effective viral inhibitors.
|
Inhibition of GSDMD in human monocyte/macrophages assessed as inhibition of pyroptosis in presence of Cu2+
|
Homo sapiens
|
400.0
nM
|
|
Journal : MedChemComm
Title : Gasdermin D (GSDMD) as a new target for the treatment of infection.
Year : 2019
Volume : 10
Issue : 5
First Page : 660
Last Page : 667
Authors : Pandeya A, Li L, Li Z, Wei Y.
Abstract : The discovery of a previously unknown protein, gasdermin D (GSDMD), as the key effector that leads to pyroptosis and NETosis has created much excitement. Since its initial report in Oct. 2015, more than 200 papers have been published on studies of the structure and mechanism of GSDMD and its homologues. The clear connection between infection and inflammasome activation made GSDMD a promising target for the development of anti-infection treatment. In this mini review, we discuss first the current understanding of the structure and mechanism of GSDMD, focusing on its potential as a druggable target, and then recent efforts in the development of inhibitors to interfere with the pore-forming function of GSDMD and thus alleviate the detrimental effects due to pyroptotic cell death.
|
Inhibition of GSDMD in mouse monocyte/macrophages assessed as inhibition of pyroptosis in presence of Cu2+
|
Mus musculus
|
400.0
nM
|
|
Journal : MedChemComm
Title : Gasdermin D (GSDMD) as a new target for the treatment of infection.
Year : 2019
Volume : 10
Issue : 5
First Page : 660
Last Page : 667
Authors : Pandeya A, Li L, Li Z, Wei Y.
Abstract : The discovery of a previously unknown protein, gasdermin D (GSDMD), as the key effector that leads to pyroptosis and NETosis has created much excitement. Since its initial report in Oct. 2015, more than 200 papers have been published on studies of the structure and mechanism of GSDMD and its homologues. The clear connection between infection and inflammasome activation made GSDMD a promising target for the development of anti-infection treatment. In this mini review, we discuss first the current understanding of the structure and mechanism of GSDMD, focusing on its potential as a druggable target, and then recent efforts in the development of inhibitors to interfere with the pore-forming function of GSDMD and thus alleviate the detrimental effects due to pyroptotic cell death.
|
Cytotoxicity against patient derived GSC after 96 hrs by CellTiter-Glo assay
|
Homo sapiens
|
31.1
nM
|
|
Journal : Eur J Med Chem
Title : Recent advances in the discovery of small molecules targeting glioblastoma.
Year : 2019
Volume : 164
First Page : 8
Last Page : 26
Authors : Fernandes GFDS, Fernandes BC, Valente V, Dos Santos JL.
Abstract : Glioblastoma (GBM) is one of the most common central nervous system cancers. It is characterized as a fast-growing tumor that arises from multiple cell types with neural stem-cell-like properties. Additionally, GBM tumors are highly invasive, which is attributed to the presence of glioblastoma stem cells that makes surgery ineffective in most cases. Currently, temozolomide is the unique chemotherapy option approved by the U.S. Food and Drug Administration for GBM treatment. This review analyzes the emergence and development of new synthetic small molecules discovered as promising anti-glioblastoma agents. A number of compounds were described herein and grouped according to the main chemical class used in the drug discovery process. Importantly, we focused only on synthetic compounds published in the last 10 years, thus excluding natural products. Furthermore, we included in this review only those most biologically active compounds with proven in vitro and/or in vivo efficacy.
|
SARS-CoV-2 3CL-Pro protease inhibition percentage at 20µM by FRET kind of response from peptide substrate
|
Severe acute respiratory syndrome coronavirus 2
|
100.36
%
|
|
Title : Identification of inhibitors of SARS-Cov2 M-Pro enzymatic activity using a small molecule repurposing screen
Year : 2020
Authors : Maria Kuzikov, Elisa Costanzi, Jeanette Reinshagen, Francesca Esposito, Laura Vangeel, Markus Wolf, Bernhard Ellinger, Carsten Claussen, Gerd Geisslinger, Angela Corona, Daniela Iaconis, Carmine Talarico, Candida Manelfi, Rolando Cannalire, Giulia Rossetti, Jonas Gossen, Simone Albani, Francesco Musiani, Katja Herzog, Yang Ye, Barbara Giabbai, Nicola Demitri, Dirk Jochmans, Steven De Jonghe, Jasper Rymenants, Vincenzo Summa, Enzo Tramontano, Andrea R. Beccari, Pieter Leyssen, Paola Storici, Johan Neyts, Philip Gribbon, and Andrea Zaliani
Abstract : Compound repurposing is an important strategy being pursued in the identification of effective treatment against the SARS-CoV-2 infection and COVID-19 disease. In this regard, SARS-CoV-2 main protease (M-Pro), also termed 3CL-Pro, is an attractive drug target as it plays a central role in viral replication by processing the viral polyprotein into 11 non-structural proteins. We report the results of a screening campaign involving ca 8.7 K compounds containing marketed drugs, clinical and preclinical candidates, and chemicals regarded as safe in humans. We confirmed previously reported inhibitors of 3CL-Pro, but we have also identified 68 compounds with IC50 lower than 1 uM and 127 compounds with IC50 lower than 5 uM. Profiling showed 67% of confirmed hits were selective (> 5 fold) against other Cys- and Ser- proteases (Chymotrypsin and Cathepsin-L) and MERS 3CL-Pro. Selected compounds were also analysed in their binding characteristics.
|
SARS-CoV-2 3CL-Pro protease inhibition IC50 determined by FRET kind of response from peptide substrate
|
Severe acute respiratory syndrome coronavirus 2
|
220.0
nM
|
|
Title : Identification of inhibitors of SARS-Cov2 M-Pro enzymatic activity using a small molecule repurposing screen
Year : 2020
Authors : Maria Kuzikov, Elisa Costanzi, Jeanette Reinshagen, Francesca Esposito, Laura Vangeel, Markus Wolf, Bernhard Ellinger, Carsten Claussen, Gerd Geisslinger, Angela Corona, Daniela Iaconis, Carmine Talarico, Candida Manelfi, Rolando Cannalire, Giulia Rossetti, Jonas Gossen, Simone Albani, Francesco Musiani, Katja Herzog, Yang Ye, Barbara Giabbai, Nicola Demitri, Dirk Jochmans, Steven De Jonghe, Jasper Rymenants, Vincenzo Summa, Enzo Tramontano, Andrea R. Beccari, Pieter Leyssen, Paola Storici, Johan Neyts, Philip Gribbon, and Andrea Zaliani
Abstract : Compound repurposing is an important strategy being pursued in the identification of effective treatment against the SARS-CoV-2 infection and COVID-19 disease. In this regard, SARS-CoV-2 main protease (M-Pro), also termed 3CL-Pro, is an attractive drug target as it plays a central role in viral replication by processing the viral polyprotein into 11 non-structural proteins. We report the results of a screening campaign involving ca 8.7 K compounds containing marketed drugs, clinical and preclinical candidates, and chemicals regarded as safe in humans. We confirmed previously reported inhibitors of 3CL-Pro, but we have also identified 68 compounds with IC50 lower than 1 uM and 127 compounds with IC50 lower than 5 uM. Profiling showed 67% of confirmed hits were selective (> 5 fold) against other Cys- and Ser- proteases (Chymotrypsin and Cathepsin-L) and MERS 3CL-Pro. Selected compounds were also analysed in their binding characteristics.
|
Antiviral activity determined as inhibition of SARS-CoV-2 induced cytotoxicity of VERO-6 cells at 10 uM after 48 hours exposure to 0.01 MOI SARS CoV-2 virus by high content imaging
|
Chlorocebus sabaeus
|
7.16
%
|
|
Antiviral activity determined as inhibition of SARS-CoV-2 induced cytotoxicity of VERO-6 cells at 10 uM after 48 hours exposure to 0.01 MOI SARS CoV-2 virus by high content imaging
|
Chlorocebus sabaeus
|
7.16
%
|
|
Title : Cytopathic SARS-Cov2 screening on VERO-E6 cells in a large repurposing effort
Year : 2020
Authors : Andrea Zaliani, Laura Vangeel, Jeanette Reinshagen, Daniela Iaconis, Maria Kuzikov, Oliver Keminer, Markus Wolf, Bernhard Ellinger, Francesca Esposito, Angela Corona, Enzo Tramontano, Candida Manelfi, Katja Herzog, Dirk Jochmans, Steven De Jonghe, Winston Chiu, Thibault Francken, Joost Schepers, Caroline Collard, Kayvan Abbasi, Carsten Claussen , Vincenzo Summa, Andrea R. Beccari, Johan Neyts, Philip Gribbon and Pieter Leyssen
Abstract : Worldwide, there are intensive efforts to identify repurposed drugs as potential therapies against SARS-CoV-2 infection and the associated COVID-19 disease. To date, the anti-inflammatory drug dexamethasone and (to a lesser extent) the RNA-polymerase inhibitor remdesivir have been shown to be effective in reducing mortality and patient time to recovery, respectively, in patients. Here, we report the results of a phenotypic screening campaign within an EU-funded project (H2020-EXSCALATE4COV) aimed at extending the repertoire of anti-COVID therapeutics through repurposing of available compounds and highlighting compounds with new mechanisms of action against viral infection. We screened 8702 molecules from different repurposing libraries, to reveal 110 compounds with an anti-cytopathic IC50 < 20 µM. From this group, 18 with a safety index greater than 2 are also marketed drugs, making them suitable for further study as potential therapies against COVID-19. Our result supports the idea that a systematic approach to repurposing is a valid strategy to accelerate the necessary drug discovery process.
|
Inhibition of human liver FBPase C38S mutant expressed in Escherichia coli BL21 (DE3) using FBP as substrate incubated for 5 mins by malachite green dye based assay
|
Homo sapiens
|
600.0
nM
|
|
Journal : J Med Chem
Title : Identification of the New Covalent Allosteric Binding Site of Fructose-1,6-bisphosphatase with Disulfiram Derivatives toward Glucose Reduction.
Year : 2020
Volume : 63
Issue : 11
First Page : 6238
Last Page : 6247
Authors : Huang Y, Xu Y, Song R, Ni S, Liu J, Xu Y, Ren Y, Rao L, Wang Y, Wei L, Feng L, Su C, Peng C, Li J, Wan J.
Abstract : Fructose 1,6-bisphosphatase (FBPase) has attracted substantial interest as a target associated with cancer and type 2 diabetes. Herein, we found that disulfiram and its derivatives can potently inhibit FBPase by covalently binding to a new C128 allosteric site distinct from the original C128 site in APO FBPase. Further identification of the allosteric inhibition mechanism reveals that the covalent binding of a fragment of 214 will result in the movement of C128 and the dissociation of helix H4 (123-128), which in turn allows S123 to more easily form new hydrogen bonds with K71 and D74 in helix H3 (69-72), thereby inhibiting FBPase activity. Notably, both disulfiram and 212 might moderately reduce blood glucose output in vivo. Therefore, our current findings not only identify a new covalent allosteric site of FBPase but also establish a structural foundation and provide a promising way for the design of covalent allosteric drugs for glucose reduction.
|
Inhibition of human liver FBPase C128S mutant expressed in Escherichia coli BL21 (DE3) at 1000 uM using FBP as substrate incubated for 5 mins by malachite green dye based assay relative to control
|
Homo sapiens
|
50.0
%
|
|
Journal : J Med Chem
Title : Identification of the New Covalent Allosteric Binding Site of Fructose-1,6-bisphosphatase with Disulfiram Derivatives toward Glucose Reduction.
Year : 2020
Volume : 63
Issue : 11
First Page : 6238
Last Page : 6247
Authors : Huang Y, Xu Y, Song R, Ni S, Liu J, Xu Y, Ren Y, Rao L, Wang Y, Wei L, Feng L, Su C, Peng C, Li J, Wan J.
Abstract : Fructose 1,6-bisphosphatase (FBPase) has attracted substantial interest as a target associated with cancer and type 2 diabetes. Herein, we found that disulfiram and its derivatives can potently inhibit FBPase by covalently binding to a new C128 allosteric site distinct from the original C128 site in APO FBPase. Further identification of the allosteric inhibition mechanism reveals that the covalent binding of a fragment of 214 will result in the movement of C128 and the dissociation of helix H4 (123-128), which in turn allows S123 to more easily form new hydrogen bonds with K71 and D74 in helix H3 (69-72), thereby inhibiting FBPase activity. Notably, both disulfiram and 212 might moderately reduce blood glucose output in vivo. Therefore, our current findings not only identify a new covalent allosteric site of FBPase but also establish a structural foundation and provide a promising way for the design of covalent allosteric drugs for glucose reduction.
|
Inhibition of Giardia lamblia carbamate Kinase preincubated for 15 mins followed by ADP and carbamate phosphate addition and measured after 20 mins by ATPLite reagent based luminescence assay
|
Giardia intestinalis
|
600.0
nM
|
|
Journal : J Med Chem
Title : Anti-Giardia Drug Discovery: Current Status and Gut Feelings.
Year : 2020
Volume : 63
Issue : 22.0
First Page : 13330
Last Page : 13354
Authors : Riches A,Hart CJS,Trenholme KR,Skinner-Adams TS
Abstract : Giardia parasites are ubiquitous protozoans of global importance that impact a wide range of animals including humans. They are the most common enteric pathogen of cats and dogs in developed countries and infect ∼1 billion people worldwide. While Giardia infections can be asymptomatic, they often result in severe and chronic diseases. There is also mounting evidence that they are linked to postinfection disorders. Despite growing evidence of the widespread morbidity associated with Giardia infections, current treatment options are limited to compound classes with broad antimicrobial activity. Frontline anti-Giardia drugs are also associated with increasing drug resistance and treatment failures. To improve the health and well-being of millions, new selective anti-Giardia drugs are needed alongside improved health education initiatives. Here we discuss current treatment options together with recent advances and gaps in drug discovery. We also propose criteria to guide the discovery of new anti-Giardia compounds.
|
Antigiardial activity against Giardia lamblia incubated for 48 hrs by ATPLite reagent based luminescence assay
|
Giardia intestinalis
|
900.0
nM
|
|
Journal : J Med Chem
Title : Anti-Giardia Drug Discovery: Current Status and Gut Feelings.
Year : 2020
Volume : 63
Issue : 22.0
First Page : 13330
Last Page : 13354
Authors : Riches A,Hart CJS,Trenholme KR,Skinner-Adams TS
Abstract : Giardia parasites are ubiquitous protozoans of global importance that impact a wide range of animals including humans. They are the most common enteric pathogen of cats and dogs in developed countries and infect ∼1 billion people worldwide. While Giardia infections can be asymptomatic, they often result in severe and chronic diseases. There is also mounting evidence that they are linked to postinfection disorders. Despite growing evidence of the widespread morbidity associated with Giardia infections, current treatment options are limited to compound classes with broad antimicrobial activity. Frontline anti-Giardia drugs are also associated with increasing drug resistance and treatment failures. To improve the health and well-being of millions, new selective anti-Giardia drugs are needed alongside improved health education initiatives. Here we discuss current treatment options together with recent advances and gaps in drug discovery. We also propose criteria to guide the discovery of new anti-Giardia compounds.
|
Inhibition of ALDH1A1 (unknown origin)
|
Homo sapiens
|
130.0
nM
|
|
|
Inhibition of wild type Candida albicans Fructose-1,6-Bisphosphate Aldolase transfected in Escherichia coli BL21 (DE3) at 50 uM incubated for 3 mins in presence of NADH by spectrophotometric analysis relative to control
|
Candida albicans
|
82.97
%
|
|
