Evidence map›Paper›PMID 32111236›Full record

ArticleClinical epigenetics2020

Underestimated effect of intragenic HIV-1 DNA methylation on viral transcription in infected individuals.

Sam Kint, Wim Trypsteen, Ward De Spiegelaere, Eva Malatinkova, Sabine Kinloch-de Loes, Tim De Meyer, Wim Van Criekinge, Linos Vandekerckhove

Open access · goldAbstract read
In one paragraph

Article in Clinical epigenetics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

12 citing papers in PubMed, 16 citations in OpenAlex.

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  11. Deciphering DNA Methylation in HIV Infection.Frontiers in immunology · 2021
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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

8 authors at 3 institutions in 2 countries.

Sam KintHIV Cure Research Center, Department of Internal Medicine and Pediatrics, Faculty of Medicine and Health Sciences, Ghent University and Ghent University Hospital, Corneel Heymanslaan 10, Medical Research Building 2, 9000, Ghent, Belgium.ORCID 0000-0002-6719-2903
Wim TrypsteenHIV Cure Research Center, Department of Internal Medicine and Pediatrics, Faculty of Medicine and Health Sciences, Ghent University and Ghent University Hospital, Corneel Heymanslaan 10, Medical Research Building 2, 9000, Ghent, Belgium.
Ward De SpiegelaereDepartment of Morphology, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium.
Eva MalatinkovaHIV Cure Research Center, Department of Internal Medicine and Pediatrics, Faculty of Medicine and Health Sciences, Ghent University and Ghent University Hospital, Corneel Heymanslaan 10, Medical Research Building 2, 9000, Ghent, Belgium.
Sabine Kinloch-de LoesDivision of Infection and Immunity, Royal Free Hospital, Royal Free Campus, University College London, Pont St, Hampstead, London, NW3 2QG, UK.
Tim De MeyerBiobix, Department of Data Analysis and Mathematical Modelling, Faculty of Bio-science Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium.
Wim Van CriekingeBiobix, Department of Data Analysis and Mathematical Modelling, Faculty of Bio-science Engineering, Ghent University, Coupure Links 653, 9000, Ghent, Belgium.
Linos VandekerckhoveHIV Cure Research Center, Department of Internal Medicine and Pediatrics, Faculty of Medicine and Health Sciences, Ghent University and Ghent University Hospital, Corneel Heymanslaan 10, Medical Research Building 2, 9000, Ghent, Belgium. linos.vandekerckhove@ugent.be.
Ghent University Hospital · BEGhent University · BEThe Royal Free Hospital · GB

Funding

Defining HIV reservoirs that rebound following suspension of ARTR01AI134419 · NIAID · SEATTLE CHILDREN'S HOSPITAL · PI FRENKEL, LISA M, VANDEKERCKHOVE, LINOS · 2017 to 2021
$3.8M
NIAID NIH HHS R01 AI134419
6 · The paper itself

Abstract

backgroundThe HIV-1 proviral genome harbors multiple CpG islands (CpGIs), both in the promoter and intragenic regions. DNA methylation in the promoter region has been shown to be heavily involved in HIV-1 latency regulation in cultured cells. However, its exact role in proviral transcriptional regulation in infected individuals is poorly understood or characterized. Moreover, methylation at intragenic CpGIs has never been studied in depth.

resultsA large, well-characterized HIV-1 patient cohort (n = 72), consisting of 17 long-term non-progressors and 8 recent seroconverters (SRCV) without combination antiretroviral therapy (cART), 15 early cART-treated, and 32 late cART-treated patients, was analyzed using a next-generation bisulfite sequencing DNA methylation method. In general, we observed low level of promoter methylation and higher levels of intragenic methylation. Additionally, SRCV showed increased promoter methylation and decreased intragenic methylation compared with the other patient groups. This data indicates that increased intragenic methylation could be involved in proviral transcriptional regulation.

conclusionsContrasting in vitro studies, our results indicate that intragenic hypermethylation of HIV-1 proviral DNA is an underestimated factor in viral control in HIV-1-infected individuals, showing the importance of analyzing the complete proviral genome in future DNA methylation studies.

Indexed as

DNA MethylationAdultAnti-HIV AgentsCpG IslandsEpigenesis, GeneticFemaleHigh-Throughput Nucleotide SequencingHIV-1HIV InfectionsHumansMaleMiddle AgedPromoter Regions, GeneticProvirusesSequence Analysis, DNATime-to-TreatmentAnti-HIV AgentsBisulfite sequencingDNA methylationEpigeneticsHIV-1HIV-1 latencyIntragenic DNA methylationNext-generation sequencing

Identifiers

PMID32111236
PMCPMC7049218
OpenAlexW3011395121

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.