Evidence map›Paper›PMID 28077629›Full record

ArticleJournal of virology2017

SUN2 Silencing Impairs CD4 T Cell Proliferation and Alters Sensitivity to HIV-1 Infection Independently of Cyclophilin A.

Daniel A Donahue, Françoise Porrot, Norbert Couespel, Olivier Schwartz

Open access · bronzeAbstract read
In one paragraph

Article in Journal of virology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.1field-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

19 citing papers in PubMed, 29 citations in OpenAlex.

  1. Focus on mechano-immunology: new direction in cancer treatment.International journal of surgery (London, England) · 2025
    Review
  2. Article
  3. Tuning immunity through tissue mechanotransduction.Nature reviews. Immunology · 2023
    Review
  4. SUN2 Modulates the Propagation of HSV-1.Journal of virology · 2022
    Article
  5. Review
  6. Review
  7. Article
  8. Cyclophilin A: a key player for etiological agent infection.Applied microbiology and biotechnology · 2021
    Review
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. 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

4 authors at 3 institutions in 1 country.

Daniel A DonahueInstitut Pasteur, Department of Virology, Virus and Immunity Unit, Paris, France ddonahue@pasteur.fr schwartz@pasteur.fr.
Françoise PorrotInstitut Pasteur, Department of Virology, Virus and Immunity Unit, Paris, France.
Norbert CouespelInstitut Pasteur, Department of Virology, Virus and Immunity Unit, Paris, France.
Olivier SchwartzInstitut Pasteur, Department of Virology, Virus and Immunity Unit, Paris, France ddonahue@pasteur.fr schwartz@pasteur.fr.
Department of Virology · FRCentre National de la Recherche Scientifique · FRInstitut Pasteur · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Linker of nucleoskeleton and cytoskeleton (LINC) complexes connect the nucleus to the cytoskeleton in eukaryotic cells. We previously reported that the overexpression of SUN2, an inner nuclear membrane protein and LINC complex component, inhibits HIV infection between the steps of reverse transcription and nuclear import in a capsid-specific manner. We also reported that SUN2 silencing does not modulate HIV infection in several cell lines. Silencing of SUN2 was recently reported to decrease HIV infection of CD4 T cells, an effect which was suggested to result from modulation of cyclophilin A (CypA)-dependent steps of HIV infection. We confirm here that HIV infection of primary CD4 T cells is compromised in the absence of endogenous SUN2, and we extend these findings to additional viral strains. However, we find that CypA is not required for the decreased infection observed in SUN2-silenced cells and, conversely, that endogenous SUN2 is not required for the well-documented positive modulation of HIV infection by CypA. In contrast, CD4 T cells lacking SUN2 exhibit a considerable defect in proliferative capacity and display reduced levels of activation markers and decreased viability. Additionally, SUN2-silenced CD4 T cells that become infected support reduced levels of viral protein expression. Our results demonstrate that SUN2 is required for the optimal activation and proliferation of primary CD4 T cells and suggest that the disruption of these processes explains the contribution of endogenous SUN2 to HIV infection in primary lymphocytes.

Indexed as

Cell ProliferationCD4-Positive T-LymphocytesCells, CulturedCyclophilin AGene SilencingHIV-1HumansIntracellular Signaling Peptides and ProteinsMembrane ProteinsCyclophilin AIntracellular Signaling Peptides and ProteinsMembrane ProteinsSUN2 protein, humanCD4 T cellhuman immunodeficiency virusSUN2

Identifiers

PMID28077629
PMCPMC5331816
OpenAlexW2577050955

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.