Evidence map›Paper›PMID 29025433›Full record

ArticleAIDS research and therapy2017

The role of the glycosyl moiety of myricetin derivatives in anti-HIV-1 activity in vitro.

Joseph T Ortega, Alirica I Suárez, Maria L Serrano, Jani Baptista, Flor H Pujol, Hector R Rangel

Open access · goldAbstract read
In one paragraph

Article in AIDS research and therapy, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
3.6field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

38 citing papers in PubMed, 80 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Joseph T OrtegaLaboratorio de Virología Molecular, Centro de Microbiología y Biología Celular, Instituto Venezolano de Investigaciones Científicas, Caracas, Venezuela.
Alirica I SuárezLaboratorio de Productos Naturales, Facultad de Farmacia, Universidad Central de Venezuela, Caracas, Venezuela.
Maria L SerranoUnidad de Química Medicinal, Facultad de Farmacia, Universidad Central de Venezuela, Caracas, Venezuela.
Jani BaptistaLaboratorio de Productos Naturales, Facultad de Farmacia, Universidad Central de Venezuela, Caracas, Venezuela.
Flor H PujolLaboratorio de Virología Molecular, Centro de Microbiología y Biología Celular, Instituto Venezolano de Investigaciones Científicas, Caracas, Venezuela.
Hector R RangelLaboratorio de Virología Molecular, Centro de Microbiología y Biología Celular, Instituto Venezolano de Investigaciones Científicas, Caracas, Venezuela. hrangel2006@gmail.com.ORCID http://orcid.org/0000-0001-5937-9690
Central University of Venezuela · VEInstituto Venezolano de Investigaciones Científicas · VE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPlant extracts are sources of valuable compounds with biological activity, especially for the anti-proliferative activity against pathogens or tumor cells. Myricetin is a flavonoid found in several plants that has been described as an inhibitor of Human immunodeficiency virus type 1 (HIV-1) through its action against the HIV reverse transcriptase, but myricetin derivatives have not been fully studied. The aim of this study was to evaluate the anti-HIV-1 activity of glycosylated metabolites obtained from Marcetia taxifolia and derived from myricetin: myricetin rhamnoside and myricetin 3-(6-rhamnosylgalactoside).

methodsCompounds were obtained from organic extracts by maceration of aerial parts of M. taxifolia. All biological assays were performed in the MT4 cell line. Antiviral activity was measured as inhibition of p24 and reverse transcriptase with a fluorescent assay.

resultsBoth flavonoids have antiviral activity in vitro, with an EC50 of 120 µM for myricetin 3-rhamnoside (MR) and 45 µM for myricetin 3-(6-rhamnosylgalactoside) (MRG), both significantly lower than the EC50 of myricetin (230 µM). Although both compounds inhibited the reverse transcriptase activity, with an IC50 of 10.6 µM for MR and 13.8 µM for MRG, myricetin was the most potent, with an IC50 of 7.6 µM, and an inhibition greater than 80%. Molecular docking approach showed correlation between the free energy of binding with the assays of enzyme inhibition.

conclusionsThe results suggest that glycosylated moiety might enhance the anti-HIV-1 activity of myricetin, probably by favoring the internalization of the flavonoid into the cell. The inhibition of the HIV-1 reverse transcriptase is likely responsible for the antiviral activity.

Indexed as

Anti-HIV AgentsCell LineFlavonoidsGalactosidesGlycosylationHIV-1HIV Core Protein p24HIV InfectionsHIV Reverse TranscriptaseHumansMannosidesMolecular Docking SimulationReverse Transcriptase InhibitorsVirus ReplicationAnti-HIV AgentsFlavonoidsGalactosidesHIV Core Protein p24HIV Reverse TranscriptaseMannosidesmyricetinmyricetin-3-O-rhamnosidereverse transcriptase, Human immunodeficiency virus 1Reverse Transcriptase InhibitorsFlavonoidsGlycosyl flavonoidsHIV-1HIV RT dockingMyricetinReverse transcriptase

Identifiers

PMID29025433
PMCPMC5639754
OpenAlexW2764275560

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.