Evidence map›Paper›PMID 12768009›Full record

ArticleJournal of virology2003

Human immunodeficiency virus type 1 envelope-mediated neuronal death: uncoupling of viral replication and neurotoxicity.

Kunyan Zhang, Farazana Rana, Claudia Silva, Julie Ethier, Kathy Wehrly, Bruce Chesebro, Christopher Power

Open access · greenAbstract read
In one paragraph

Article in Journal of virology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

22 citing papers in PubMed, 47 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Differential type 1 interferon-regulated gene expression in the brain during AIDS: interactions with viral diversity and neurovirulence.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2013
    Article
  5. Article
  6. Article
  7. HIV-associated neurocognitive disorder: pathogenesis and therapeutic opportunities.Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology · 2010
    Review
  8. Host and viral factors influencing the pathogenesis of HIV-associated neurocognitive disorders.Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology · 2009
    Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. HIV-1 Vpr causes neuronal apoptosis and in vivo neurodegeneration.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2007
    Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Article
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

7 authors at 3 institutions in 3 countries.

Kunyan ZhangDepartment of Clinical Neurosciences, University of Calgary, Alberta, Canada.
Farazana Rana
Claudia Silva
Julie Ethier
Kathy Wehrly
Bruce Chesebro
Christopher Power
National Institute of Allergy and Infectious Diseases · USUniversity of Calgary · CAUniversity of Nairobi · KE

Funding

Pathogenesis/Immunology Of Animal And Human RetrovirusesZ01AI000074 · NIAID · NIAID EXTRAMURAL ACTIVITIES · PI CHESEBRO, BRUCE · 1985 to 2008
$445k
Pathogenesis And Immunology Of Animal And Human RetrovirusesZIAAI000074 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI CHESEBRO, BRUCE · 2009 to 2009
$46k
6 · The paper itself

Abstract

Although brain tissue from patients with human immunodeficiency virus (HIV) and/or AIDS is consistently infected by HIV type 1 (HIV-1), only 20 to 30% of patients exhibit clinical or neuropathological evidence of brain injury. Extensive HIV-1 sequence diversity is present in the brain, which may account in part for the variability in the occurrence of HIV-induced brain disease. Neurological injury caused by HIV-1 is mediated directly by neurotoxic viral proteins or indirectly through excess production of host molecules by infected or activated glial cells. To elucidate the relationship between HIV-1 infection and neuronal death, we examined the neurotoxic effects of supernatants from human 293T cells or macrophages expressing recombinant HIV-1 virions or gp120 proteins containing the V1V3 or C2V3 envelope region from non-clade B, brain-derived HIV-1 sequences. Neurotoxicity was measured separately as apoptosis or total neuronal death, with apoptosis representing 30 to 80% of the total neuron death observed, depending on the individual virus. In addition, neurotoxicity was dependent on expression of HIV-1 gp120 and could be blocked by anti-gp120 antibodies, as well as by antibodies to the human CCR5 and CXCR4 chemokine receptors. Despite extensive sequence diversity in the recombinant envelope region (V1V3 or C2V3), there was limited variation in the neurotoxicity induced by supernatants from transfected 293T cells. Conversely, supernatants from infected macrophages caused a broader range of neurotoxicity levels that depended on each virus and was independent of the replicative ability of the virus. These findings underscore the importance of HIV-1 envelope protein expression in neurotoxic pathways associated with HIV-induced brain disease and highlight the envelope as a target for neuroprotective therapeutic interventions.

Indexed as

Cell DeathVirus ReplicationApoptosisBrainCell LineCulture Media, ConditionedHeLa CellsHIV-1HIV Envelope Protein gp120HumansMacrophagesNeuronsRecombination, GeneticTransfectionCulture Media, ConditionedHIV Envelope Protein gp120

Identifiers

PMID12768009
PMCPMC156161
OpenAlexW1963609057

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.