Evidence map›Paper›PMID 21315782›Full record

ArticleNeurochemistry international2011

HIV-1 Tat upregulates expression of histone deacetylase-2 (HDAC2) in human neurons: implication for HIV-associated neurocognitive disorder (HAND).

Zainulabedin M Saiyed, Nimisha Gandhi, Marisela Agudelo, Jessica Napuri, Thangavel Samikkannu, Pichili V B Reddy, Pradnya Khatavkar, Adriana Yndart, Shailendra K Saxena, Madhavan P N Nair

Open access · greenAbstract read
In one paragraph

Article in Neurochemistry international, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
1.6field-weighted citation impact, top 19% 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

28 citing papers in PubMed, 51 citations in OpenAlex.

  1. Review
  2. Epigenetic mechanisms of HIV and opioid-induced neuropathology: Potential therapies and interventions.Molecular therapy : the journal of the American Society of Gene Therapy · 2025
    Review
  3. Review
  4. Discovery of indole-3-butyric acid derivatives as potent histone deacetylase inhibitors.Journal of enzyme inhibition and medicinal chemistry · 2021
    Article
  5. Neurocognitive Impairment and Associated Genetic Aspects in HIV Infection.Current topics in behavioral neurosciences · 2021
    Article
  6. Review
  7. Article
  8. Article
  9. Discovery ofFrontiers in pharmacology · 2019
    Article
  10. Zinc binding groups for histone deacetylase inhibitors.Journal of enzyme inhibition and medicinal chemistry · 2018
    Review
  11. Review
  12. Article
  13. Review
  14. CombinatorialFrontiers in molecular neuroscience · 2017
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

10 authors at 2 institutions in 2 countries.

Zainulabedin M SaiyedDepartment of Immunology, Institute of NeuroImmune Pharmacology, Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA.
Nimisha Gandhi
Marisela Agudelo
Jessica Napuri
Thangavel Samikkannu
Pichili V B Reddy
Pradnya Khatavkar
Adriana Yndart
Shailendra K Saxena
Madhavan P N Nair
Florida International University · USCentre for Cellular and Molecular Biology · IN

Funding

Polydrug Nanocarrier to Treat Opiate Addiction and HIV DiseaseR01DA027049 · NIDA · FLORIDA INTERNATIONAL UNIVERSITY · PI NAIR, MADHAVAN P. · 2009 to 2014
$3.1M
Immunopathogenesis of HIV-1 Infection: Role of MethamphetamineR01DA021537 · NIDA · FLORIDA INTERNATIONAL UNIVERSITY · PI NAIR, MADHAVAN P. · 2006 to 2010
$2.0M
Role of Cocaine in Neuro-AIDS by HIV 1B and C CladesR37DA025576 · NIDA · FLORIDA INTERNATIONAL UNIVERSITY · PI NAIR, MADHAVAN P. · 2008 to 2012
$1.7M
Mechanisms of Neuro-AIDS by HIV 1B and C CladesR01MH085259 · NIMH · FLORIDA INTERNATIONAL UNIVERSITY · PI NAIR, MADHAVAN P. · 2010 to 2014
$1.7M
NIDA NIH HHS R01 DA021537NIDA NIH HHS R01DA021537NIDA NIH HHS R01 DA027049NIDA NIH HHS R01DA027049NIDA NIH HHS R37 DA025576NIDA NIH HHS R37DA025576NIMH NIH HHS R01 MH085259NIMH NIH HHS R01MH085259
6 · The paper itself

Abstract

Histone deacetylases (HDACs) play a pivotal role in epigenetic regulation of transcription and homeostasis of protein acetylation in histones and other proteins involved in chromatin remodeling. Histone hypoacetylation and transcriptional dysfunction have been shown to be associated with a variety of neurodegenerative diseases. More recently, neuron specific overexpression of HDAC2 has been shown to modulate synaptic plasticity and learning behavior in mice. However, the role of HDAC2 in development of HIV-associated neurocognitive disorders (HAND) is not reported. Herein we report that HIV-1 Tat protein upregulate HDAC2 expression in neuronal cells leading to transcriptional repression of genes involved in synaptic plasticity and neuronal function thereby contributing to the progression of HAND. Our results indicate upregulation of HDAC2 by Tat treatment in dose and time dependant manner by human neuroblastoma SK-N-MC cells and primary human neurons. Further, HDAC2 overexpression was associated with concomitant downregulation in CREB and CaMKIIa genes that are known to regulate neuronal activity. These observed effects were completely blocked by HDAC2 inhibition. These results for the first time suggest the possible role of HDAC2 in development of HAND. Therefore, use of HDAC2 specific inhibitor in combination with HAART may be of therapeutic value in treatment of neurocognitive disorders observed in HIV-1 infected individuals.

Indexed as

AIDS Dementia ComplexCell Line, TumorFlow CytometryGene Products, tatHistone Deacetylase 2HIV-1HumansHydroxamic AcidsNeuronsPolymerase Chain ReactionUp-RegulationGene Products, tatHistone Deacetylase 2Hydroxamic Acidstrichostatin A

Identifiers

PMID21315782
PMCPMC3085929
OpenAlexW2030364709

What OpenQuestion holds

Textmetadata
LicenceTDM
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.