PMID- 30886338 OWN - NLM STAT- MEDLINE DCOM- 20201014 LR - 20231006 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 9 IP - 1 DP - 2019 Mar 18 TI - Anti-HIV-1 integrase potency of methylgallate from Alchornea cordifolia using in vitro and in silico approaches. PG - 4718 LID - 10.1038/s41598-019-41403-x [doi] LID - 4718 AB - According to the 2018 report of the United Nations Programme on HIV/AIDS (UNAIDS), acquired immune deficiency syndrome (AIDS), a disease caused by the human immunodeficiency virus (HIV), remains a significant public health problem. The non-existence of a cure or effective vaccine for the disease and the associated emergence of resistant viral strains imply an urgent need for the discovery of novel anti-HIV drug candidates. The current study aimed to identify potential anti-retroviral compounds from Alchornea cordifolia. Bioactive compounds were identified using several chromatographic and spectroscopic techniques and subsequently evaluated for cytotoxicity and anti-HIV properties. Molecular modelling studies against HIV-1 integrase (HIV-1 IN) were performed to decipher the mode of action of methylgallate, the most potent compound (IC(50) = 3.7 nM) and its analogues from ZINC database. Cytotoxicity assays showed that neither the isolated compounds nor the crude methanolic extract displayed cytotoxicity effects on the HeLa cell line. A strong correlation between the in vitro and in silico results was observed and important HIV-1 IN residues interacting with the different compounds were identified. These current results indicate that methylgallate is the main anti-HIV-1 compound in A. cordifolia stem bark, and could be a potential platform for the development of new HIV-1 IN inhibitors. FAU - Siwe-Noundou, Xavier AU - Siwe-Noundou X AUID- ORCID: 0000-0002-8667-8351 AD - Department of Chemistry, Rhodes University, Grahamstown, 6140, South Africa. xavsiw@gmail.com. AD - Department of Biochemistry and Microbiology, Rhodes University, Grahamstown, 6140, South Africa. xavsiw@gmail.com. FAU - Musyoka, Thommas M AU - Musyoka TM AD - Research Unit in Bioinformatics (RUBi), Department of Biochemistry and Microbiology, Rhodes University, Grahamstown, 6140, South Africa. FAU - Moses, Vuyani AU - Moses V AD - Research Unit in Bioinformatics (RUBi), Department of Biochemistry and Microbiology, Rhodes University, Grahamstown, 6140, South Africa. FAU - Ndinteh, Derek T AU - Ndinteh DT AD - Department of Applied Chemistry, University of Johannesburg, Doornfontein, Johannesburg, 2028, South Africa. FAU - Mnkandhla, Dumisani AU - Mnkandhla D AD - Department of Biochemistry and Microbiology, Rhodes University, Grahamstown, 6140, South Africa. FAU - Hoppe, Heinrich AU - Hoppe H AD - Department of Biochemistry and Microbiology, Rhodes University, Grahamstown, 6140, South Africa. FAU - Tastan Bishop, Ozlem AU - Tastan Bishop O AUID- ORCID: 0000-0001-6861-7849 AD - Research Unit in Bioinformatics (RUBi), Department of Biochemistry and Microbiology, Rhodes University, Grahamstown, 6140, South Africa. O.TastanBishop@ru.ac.za. FAU - Krause, Rui W M AU - Krause RWM AD - Department of Chemistry, Rhodes University, Grahamstown, 6140, South Africa. r.krause@ru.ac.za. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20190318 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 RN - 0 (HIV Integrase Inhibitors) RN - 0 (Recombinant Proteins) RN - 623D3XG80C (methyl gallate) RN - 632XD903SP (Gallic Acid) RN - EC 2.7.7.- (HIV Integrase) RN - YY6481J2FF (p31 integrase protein, Human immunodeficiency virus 1) SB - IM MH - Acquired Immunodeficiency Syndrome/*drug therapy/virology MH - Drug Evaluation, Preclinical MH - Euphorbiaceae/*chemistry MH - Gallic Acid/*analogs & derivatives/chemistry/isolation & purification/pharmacology/therapeutic use MH - HIV Integrase/*metabolism/ultrastructure MH - HIV Integrase Inhibitors/chemistry/isolation & purification/*pharmacology/therapeutic use MH - HIV-1/drug effects/enzymology MH - HeLa Cells MH - Humans MH - Inhibitory Concentration 50 MH - Molecular Docking Simulation MH - Molecular Dynamics Simulation MH - Plant Bark/chemistry MH - Plant Stems/chemistry MH - Protein Domains MH - Recombinant Proteins MH - Toxicity Tests PMC - PMC6423119 COIS- The authors declare no competing interests. EDAT- 2019/03/20 06:00 MHDA- 2020/10/21 06:00 PMCR- 2019/03/18 CRDT- 2019/03/20 06:00 PHST- 2018/10/16 00:00 [received] PHST- 2019/03/05 00:00 [accepted] PHST- 2019/03/20 06:00 [entrez] PHST- 2019/03/20 06:00 [pubmed] PHST- 2020/10/21 06:00 [medline] PHST- 2019/03/18 00:00 [pmc-release] AID - 10.1038/s41598-019-41403-x [pii] AID - 41403 [pii] AID - 10.1038/s41598-019-41403-x [doi] PST - epublish SO - Sci Rep. 2019 Mar 18;9(1):4718. doi: 10.1038/s41598-019-41403-x.