Evidence map›Paper›PMID 15813990›Full record

ArticleAIDS research and therapy2005

HIV-1 resistance conferred by siRNA cosuppression of CXCR4 and CCR5 coreceptors by a bispecific lentiviral vector.

Joseph Anderson, Ramesh Akkina

Open access · goldAbstract read
In one paragraph

Article in AIDS research and therapy, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 1 pooled it
4.8field-weighted citation impact, top 4% 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

39 citing papers in PubMed, 1 synthesis or guideline pooled it, 94 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Review
  5. Review
  6. Article
  7. Review
  8. Engineering T Cells to Functionally Cure HIV-1 Infection.Molecular therapy : the journal of the American Society of Gene Therapy · 2015
    Review
  9. Article
  10. Δ(9)-Tetrahydrocannabinol treatment during human monocyte differentiation reduces macrophage susceptibility to HIV-1 infection.Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology · 2014
    Article
  11. Review
  12. Article
  13. Novel cell and gene therapies for HIV.Cold Spring Harbor perspectives in medicine · 2012
    Review
  14. Zinc-finger nuclease editing of human cxcr4 promotes HIV-1 CD4(+) T cell resistance and enrichment.Molecular therapy : the journal of the American Society of Gene Therapy · 2012
    Article
  15. Article
  16. Review
  17. Article
  18. Review
  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

2 authors at 1 institution in 1 country.

Joseph AndersonDept Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, Colorado 80523, USA. akkina@colostate.edu.
Ramesh Akkina
Colorado State University · US

Funding

U of Colorado Center for AIDS ResearchP30AI054907 · NIAID · UNIVERSITY OF COLORADO DENVER · PI MAWHINNEY-DELSON, SAMANTHA · 2003 to 2008
$9.6M
SiRNA Gene Therapy for HIV/AIDSR01AI057066 · NIAID · COLORADO STATE UNIVERSITY-FORT COLLINS · PI AKKINA, RAMESH · 2004 to 2008
$1.6M
Modeling RNA-based HIV gene therapeutics in SCID-hu miceR01AI050492 · NIAID · COLORADO STATE UNIVERSITY-FORT COLLINS · PI AKKINA, RAMESH · 2002 to 2006
$1.2M
Modeling RNA-based HIV gene therapeutics in SCID-hu miceR21AI050492 · NIAID · COLORADO STATE UNIVERSITY-FORT COLLINS · PI AKKINA, RAMESH · 2001 to 2001
$290k
NIAID NIH HHS P30 AI054907NIAID NIH HHS R01 AI050492NIAID NIH HHS R01 AI057066NIAID NIH HHS R21 AI050492
6 · The paper itself

Abstract

backgroundRNA interference (RNAi) mediated by small interfering RNAs (siRNAs) has proved to be a highly effective gene silencing mechanism with great potential for HIV/AIDS gene therapy. Previous work with siRNAs against cellular coreceptors CXCR4 and CCR5 had shown that down regulation of these surface molecules could prevent HIV-1 entry and confer viral resistance. Since monospecific siRNAs targeting individual coreceptors are inadequate in protecting against both T cell tropic (X4) and monocyte tropic (R5) viral strains simultaneously, bispecific constructs with dual specificity are required. For effective long range therapy, the bispecific constructs need to be stably transduced into HIV-1 target cells via integrating viral vectors.

resultsTo achieve this goal, lentiviral vectors incorporating both CXCR4 and CCR5 siRNAs of short hairpin design were constructed. The CXCR4 siRNA was driven by a U6 promoter whereas the CCR5 siRNA was driven by an H1 promoter. A CMV promoter driven EGFP reporter gene is also incorporated in the bispecific construct. High efficiency transduction into coreceptor expressing Magi and Ghost cell lines with a concomitant down regulation of respective coreceptors was achieved with lentiviral vectors. When the siRNA expressing transduced cells were challenged with X4 and R5 tropic HIV-1, they demonstrated marked viral resistance. HIV-1 resistance was also observed in bispecific lentiviral vector transduced primary PBMCs.

conclusionsBoth CXCR4 and CCR5 coreceptors could be simultaneously targeted for down regulation by a single combinatorial lentiviral vector incorporating respective anti-coreceptor siRNAs. Stable down regulation of both the coreceptors protects cells against infection by both X4 and R5 tropic HIV-1. Stable down regulation of cellular molecules that aid in HIV-1 infection will be an effective strategy for long range HIV gene therapy.

Identifiers

PMID15813990
PMCPMC1074340
OpenAlexW1590468645

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Registered trials

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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.