PMID- 35658757 OWN - NLM STAT- MEDLINE DCOM- 20220608 LR - 20230916 IS - 1365-2060 (Electronic) IS - 0785-3890 (Print) IS - 0785-3890 (Linking) VI - 54 IP - 1 DP - 2022 Dec TI - Evaluation of a flavonoid library for inhibition of interaction of HIV-1 integrase with human LEDGF/p75 towards a structure-activity relationship. PG - 1590-1600 LID - 10.1080/07853890.2022.2081869 [doi] AB - Background: Proteinsprotein interaction (PPI) between lens epithelium-derived growth factor (LEDGF/p75) and human immunodeficiency virus (HIV) integrase (IN) becomes an attractive target for anti-HIV drug development.Methods: The blockade of this interaction by small molecules could potentially inhibit HIV-1 replication. In this study, a panel of 99 structurally related flavonoids were was tested, concerning their ability to inhibit IN-LEDGF/p75 interaction, using a homogeneous time time-resolved fluorescence (HTRF) assay. Results: From the obtained results, it was possible to observe that the flavonoid with hydroxyl group in C3-, C4-, C5- and C7-position on the A-ring, C4'- and C5'-position of the B-ring, a carbonyl group of the C-ring, was more active against IN-LEDGF/p75 interaction, through competitive inhibition. Moreover, the binding modes of representative compounds, including myricetin, luteolin, dihydrorobinetin, naringenin, epicatechin, genistein and helichrysetin, were analyzedanalysed by molecular docking. Biolayer interferometry assay confirmed that these representative compounds disrupted the PPI by binding to IN with KD values ranging from 1.0 to 3.6 microM.Conclusion: This study presents the first to quantitative comparation of the effect of flavonoids with different structural subclasses on IN-LEDGF/p75 interaction. Our findings provide new insights into the development of inhibitors targeting IN-LEDGF/p75 interaction using flavonoids. Key MessagesHIV-1 integrase (IN)-LEDGF/p75 interaction is an attractive target for antiviral drug development.For the first time, the structure-activity relationship of flavonoids belonging to seven flavonoidic subclasses on IN-LEDGF/p75 interaction was determined.This study comprehends an HTRF-based screening system, biolayer interferometry and an in silico molecular docking analysis. FAU - Yin, Zhi-Hui AU - Yin ZH AD - First Hospital of Shanxi Medical University, Taiyuan, China. FAU - Yan, Hao-Li AU - Yan HL AD - Center for Food and Drug Evaluation & Inspection of Henan, Zhengzhou, China. FAU - Pan, Yu AU - Pan Y AD - School of Computer Engineering, Jiangsu University of Technology, Changzhou, China. FAU - Zhang, Da-Wei AU - Zhang DW AUID- ORCID: 0000-0001-5938-2603 AD - Institute of Bioinformatics and Medical Engineering, School of Electrical and Information Engineering, Jiangsu University of Technology, Changzhou, China. FAU - Yan, Xin AU - Yan X AD - First Hospital of Shanxi Medical University, Taiyuan, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Ann Med JT - Annals of medicine JID - 8906388 RN - 0 (Flavonoids) RN - 0 (HIV Integrase Inhibitors) RN - 0 (Intercellular Signaling Peptides and Proteins) RN - 0 (lens epithelium-derived growth factor) RN - EC 2.7.7.- (HIV Integrase) RN - YY6481J2FF (p31 integrase protein, Human immunodeficiency virus 1) SB - IM MH - Flavonoids/pharmacology MH - *HIV Infections MH - *HIV Integrase/chemistry/metabolism MH - *HIV Integrase Inhibitors/chemistry/pharmacology MH - Humans MH - Intercellular Signaling Peptides and Proteins MH - Molecular Docking Simulation MH - Structure-Activity Relationship PMC - PMC9176681 OTO - NOTNLM OT - Flavonoid OT - HIV-1 OT - integrase OT - integrase-LEDGF interaction COIS- The authors declare no competing interests. EDAT- 2022/06/07 06:00 MHDA- 2022/06/09 06:00 PMCR- 2022/06/06 CRDT- 2022/06/06 09:51 PHST- 2022/06/06 09:51 [entrez] PHST- 2022/06/07 06:00 [pubmed] PHST- 2022/06/09 06:00 [medline] PHST- 2022/06/06 00:00 [pmc-release] AID - 2081869 [pii] AID - 10.1080/07853890.2022.2081869 [doi] PST - ppublish SO - Ann Med. 2022 Dec;54(1):1590-1600. doi: 10.1080/07853890.2022.2081869.