Evidence map›Paper›PMID 20858415›Full record

ArticleBiophysical journal2010

Membrane potential depolarization as a triggering mechanism for Vpu-mediated HIV-1 release.

Kate Hsu, Jin Han, Krekwit Shinlapawittayatorn, Isabelle Deschenes, Eduardo Marbán

Open access · bronzeAbstract read
In one paragraph

Article in Biophysical journal, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
1.3field-weighted citation impact, top 23% 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

29 citing papers in PubMed, 50 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. A red-emitting carborhodamine for monitoring and measuring membrane potential.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
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  16. Article
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  18. Review
  19. Targeting the Channel Activity of Viroporins.Advances in protein chemistry and structural biology · 2016
    Review
  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

5 authors at 4 institutions in 3 countries.

Kate HsuDepartment of Medical Research, Mackay Memorial Hospital, Tamsui, Taiwan. khsu1@ms1.mmh.org.tw
Jin Han
Krekwit Shinlapawittayatorn
Isabelle Deschenes
Eduardo Marbán
Case Western Reserve University · USCedars-Sinai Medical Center · USInje University · KRMackay Memorial Hospital · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Vpu, a component unique to HIV-1, greatly enhances the efficiency of viral particle release by unclear mechanisms. This Vpu function is intrinsically linked to its channel-like structure, which enables it to interfere with homologous transmembrane structures in infected cells. Because Vpu interacts destructively with host background K(+) channels that set the cell resting potential, we hypothesized that Vpu might trigger viral release by destabilizing the electric field across a budding membrane. Here, we found that the efficiency of Vpu-mediated viral release is inversely correlated with membrane potential polarization. By inhibiting the background K(+) currents, Vpu dissipates the voltage constraint on viral particle discharge. As a proof of concept, we show that HIV-1 release can be accelerated by externally imposed depolarization alone. Our findings identify the trigger of Vpu-mediated release as a manifestation of the general principle of depolarization-stimulated exocytosis.

Indexed as

Membrane PotentialsVirus ReleaseBase SequenceCell PolarityGene Knockdown TechniquesHeLa CellsHIV-1Human Immunodeficiency Virus ProteinsHumansNerve Tissue ProteinsPoint MutationPotassium Channels, Tandem Pore DomainViral Regulatory and Accessory ProteinsViroporin ProteinsHuman Immunodeficiency Virus ProteinsNerve Tissue ProteinsPotassium Channels, Tandem Pore Domainpotassium channel subfamily K member 3Viral Regulatory and Accessory ProteinsViroporin Proteinsvpu protein, Human immunodeficiency virus 1

Identifiers

PMID20858415
PMCPMC2941015
OpenAlexW2077053089

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.