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Discovery of potential PD-1 and PD-L1 interaction inhibitors using combined molecular modeling approaches

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Název: Discovery of potential PD-1 and PD-L1 interaction inhibitors using combined molecular modeling approaches
Autoři: Ozlem Ulucan
Zdroj: Volume: 15, Issue: 117-34
Adıyaman University Journal of Science
Adıyaman Üniversitesi Fen Bilimleri Dergisi
Informace o vydavateli: Adiyaman University, 2025.
Rok vydání: 2025
Témata: inhibitory T cell receptors, immunomodulation, PD-1 Receptor, drug discovery, computer-aided drug design, small molecule libraries, molecular docking simulations, molecular dynamic simulations, Biyoinformatik ve Hesaplamalı Biyoloji (Diğer), Bioinformatics and Computational Biology (Other)
Popis: Immune checkpoints are regulators of the immune system that maintain immune homeostasis and prevent autoimmunity. Cancer cells often manipulate immune checkpoint mechanisms to escape anti-tumor immune response by overexpressing the immune checkpoint ligands. Thus, the interactions between the immune checkpoint receptors and ligands attracted attention and were proven to be effective targets in treating cancer. In this study, combining several computational approaches, we discovered small molecules that effectively bind to the ligand PD-L1 and have the potential to hamper its interaction with the negative immune checkpoint receptor PD-1. Different pharmacophore models were constructed using triple and quadruple combinations of the interface residues on PD-1, which were used later for scanning the ZINC15 database. 12714 small molecules were retrieved and virtually screened using molecular docking calculations. The complexes of promising small molecules with PD-L1 were further evaluated using energetic and structural analyses. Our results suggest that the three small molecules ZINC21075815, ZINC70692276, and ZINC64031730 retrieved from the ZINC15 database establish stable and energetically favorable interactions with PD-L1 at the hot region consisting of the residues Tyr 56, Glu 58, Arg 113, Met 115 and Tyr 123. These molecules can be used as a starting point to develop more effective and selective anti-PD-1/PD-L1 inhibitors.
Druh dokumentu: Article
Popis souboru: application/pdf
Jazyk: English
ISSN: 2147-1630
DOI: 10.37094/adyujsci.1567604
Přístupová URL adresa: https://dergipark.org.tr/tr/pub/adyujsci/issue/91117/1567604
Přístupové číslo: edsair.doi.dedup.....d1af6aac3293719cd1ec50924e057936
Databáze: OpenAIRE
Popis
Abstrakt:Immune checkpoints are regulators of the immune system that maintain immune homeostasis and prevent autoimmunity. Cancer cells often manipulate immune checkpoint mechanisms to escape anti-tumor immune response by overexpressing the immune checkpoint ligands. Thus, the interactions between the immune checkpoint receptors and ligands attracted attention and were proven to be effective targets in treating cancer. In this study, combining several computational approaches, we discovered small molecules that effectively bind to the ligand PD-L1 and have the potential to hamper its interaction with the negative immune checkpoint receptor PD-1. Different pharmacophore models were constructed using triple and quadruple combinations of the interface residues on PD-1, which were used later for scanning the ZINC15 database. 12714 small molecules were retrieved and virtually screened using molecular docking calculations. The complexes of promising small molecules with PD-L1 were further evaluated using energetic and structural analyses. Our results suggest that the three small molecules ZINC21075815, ZINC70692276, and ZINC64031730 retrieved from the ZINC15 database establish stable and energetically favorable interactions with PD-L1 at the hot region consisting of the residues Tyr 56, Glu 58, Arg 113, Met 115 and Tyr 123. These molecules can be used as a starting point to develop more effective and selective anti-PD-1/PD-L1 inhibitors.
ISSN:21471630
DOI:10.37094/adyujsci.1567604