In Silico Discovery of Novel Flavonoids as Poly ADP Ribose Polymerase (PARP) Inhibitors

Author(s): Ashish Shah*, Ghanshyam Parmar, Avinash Kumar Seth

Journal Name: Current Computer-Aided Drug Design

Volume 17 , Issue 3 , 2021

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Graphical Abstract:


Background: The concept of synthetic lethality is an emerging field in the treatment of cancer and can be applied for new drug development of cancer as already been represented by Poly (ADP-ribose) polymerase (PARPs) inhibitors.

Objective: In this study, we performed virtual screening of 329 flavonoids obtained from the Naturally Occurring Plant-based Anti-cancer Compound-Activity-Target (NPACT) database to identify novel PARP inhibitors.

Materials and Methods: Virtual screening carried out using different in silico methods which include molecular docking studies, prediction of drug-likeness and in silico toxicity studies.

Results: Fifteen out of 329 flavonoids achieved better docking score as compared to rucaparib which is an FDA approved PARP inhibitor. These 15 hits were again rescored using accurate docking mode and drug-likeliness properties were evaluated. The accuracy of the docking method was checked using re-docking. Finally NPACT00183 and NPACT00280 were identified as potential PARP inhibitors with docking score of -139.237 and -129.36, respectively. These two flavonoids also showed no AMES toxicity and no carcinogenicity which was predicted using admetSAR.

Conclusion: Our finding suggests that NPACT00183 and NPACT00280 have promising potential to be further explored as PARP inhibitors.

Keywords: Virtual screening, Flavonoids, NPACT database, PARP inhibitors, re-docking, polymerase.

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Article Details

Year: 2021
Published on: 07 April, 2020
Page: [344 - 350]
Pages: 7
DOI: 10.2174/1573409916666200408082858
Price: $65

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PDF: 168