Evidence map›Paper›PMID 22924643›Full record

ArticleAIDS research and human retroviruses2013

Reduced basal transcriptional activity of central nervous system-derived HIV type 1 long terminal repeats.

Lachlan R Gray, Daniel Cowley, Emma Crespan, Casey Welsh, Charlene Mackenzie, Steve L Wesselingh, Paul R Gorry, Melissa J Churchill

Abstract read
In one paragraph

Article in AIDS research and human retroviruses, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.2field-weighted citation impact, top 24% 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

18 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Impact of Myeloid Reservoirs in HIV Cure Trials.Current HIV/AIDS reports · 2019
    Review
  6. Review
  7. Observational
  8. Article
  9. Article
  10. Strategies to target non-T-cell HIV reservoirs.Current opinion in HIV and AIDS · 2016
    Review
  11. Article
  12. Review
  13. Review
  14. Review
  15. Is the central nervous system a reservoir of HIV-1?Current opinion in HIV and AIDS · 2014
    Review
  16. Article
  17. Article
  18. HIV and neurocognitive dysfunction.Current HIV/AIDS reports · 2013
    Review
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 4 institutions in 1 country.

Lachlan R GrayCenter for Virology, Burnet Institute, Melbourne, Victoria 3001, Australia.
Daniel Cowley
Emma Crespan
Casey Welsh
Charlene Mackenzie
Steve L Wesselingh
Paul R Gorry
Melissa J Churchill
Burnet Institute · AUMonash University · AUSouth Australian Health and Medical Research Institute · AUUniversity of Melbourne · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

New evidence indicates that astrocytes of the central nervous system (CNS) are extensively infected with human immunodeficiency virus type 1 (HIV-1) in vivo. Although no new virus is produced, this nonproductive or restricted infection contributes to the pathogenesis of HIV-associated dementia (HAD) and compromises virus eradication strategies. The HIV-1 long terminal repeat (LTR) plays a critical role in regulating virus production from infected cells. Here, we determined whether LTRs derived from CNS and non-CNS compartments are genetically and functionally distinct and contribute to the restricted nature of astrocyte infection. CNS- and/or non-CNS-derived LTRs (n=82) were cloned from primary HIV-1 viruses isolated from autopsy tissues of seven patients who died with HAD. Phylogenetic analysis showed interpatient and intrapatient clustering of LTR nucleotide sequences. Functional analysis showed reduced basal transcriptional activity of CNS-derived LTRs in both astrocytes and T cells compared to that of non-CNS-derived LTRs. However, LTRs were heterogeneous in their responsiveness to activation by Tat. Therefore, using a relatively large, independent panel of primary HIV-1 LTRs derived from clinically well-characterized subjects, we show that LTRs segregate CNS- from non-CNS-derived tissues both genetically and functionally. The reduced basal transcriptional activity of LTRs derived from the CNS may contribute to the restricted HIV-1 infection of astrocytes and latent infection within the CNS. These findings have significance for understanding the molecular basis of HIV-1 persistence within cellular reservoirs of the CNS that need to be considered for strategies aimed at eradicating HIV-1.

Indexed as

Terminal Repeat SequencesTranscription, GeneticVirus ReplicationAIDS Dementia ComplexAstrocytesCentral Nervous SystemCloning, MolecularGenetic VariationGenotypeHIV-1HumansPhylogenySequence Analysis, DNAtat Gene Products, Human Immunodeficiency Virustat Gene Products, Human Immunodeficiency Virus

Identifiers

PMID22924643
PMCPMC3552182
OpenAlexW2025161822

What OpenQuestion holds

Textmetadata
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.