Evidence map›Paper›PMID 19240112›Full record

ArticleJournal of cell science2009

Huntingtin promotes cell survival by preventing Pak2 cleavage.

Shouqing Luo, David C Rubinsztein

Open access · greenAbstract read
In one paragraph

Article in Journal of cell science, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
1.8field-weighted citation impact, top 17% 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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 44 citations in OpenAlex.

  1. Pooled it
  2. High-affinity, structure-validated and selective macrocyclic peptide tools for chemical biology studies of Huntingtin.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  5. Huntington's Disease: Complex Pathogenesis and Therapeutic Strategies.International journal of molecular sciences · 2024
    Review
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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.

Shouqing LuoDepartment of Medical Genetics, Cambridge Institute for Medical Research, Wellcome/MRC Building, Addenbrooke's Hospital, Hills Road, Cambridge CB2 0XY, UK.
David C Rubinsztein
Addenbrooke's Hospital · GB

Funding

Medical Research Council G0600194Medical Research Council G0600194(77639)Wellcome Trust 064354
6 · The paper itself

Abstract

Huntington's disease is caused by a polyglutamine expansion in the huntingtin protein. Wild-type huntingtin, by contrast, appears to protect cells from pro-apoptotic insults. Here we describe a novel anti-apoptotic function for huntingtin. When cells are exposed to Fas-related signals, the ubiquitously expressed p21-activated kinase 2 (Pak2) can be activated via cleavage by caspases to release a constitutively active C-terminal fragment, which mediates cell death. Our data show that huntingtin interacts with Pak2. Overexpression of huntingtin significantly inhibits caspase-3-mediated and caspase-8-mediated cleavage of Pak2 in cells. Moreover, huntingtin prevents Pak2 cleavage by caspase-3 and caspase-8 in vitro. Although huntingtin is cytoprotective in wild-type cells that are exposed to TNFalpha, it has no significant benefit in TNFalpha-treated cells with Pak2 knockdown. Thus, huntingtin exerts anti-apoptotic effects by binding to Pak2, which reduces the abilities of caspase-3 and caspase-8 to cleave Pak2 and convert it into a mediator of cell death.

Indexed as

AnimalsApoptosisCaspase 3Caspase 8Cell Line, TumorCell SurvivalEnzyme ActivationMiceMutant ProteinsNerve Tissue Proteinsp21-Activated KinasesProtein BindingTumor Necrosis Factor-alphaCaspase 3Caspase 8Mutant ProteinsNerve Tissue Proteinsp21-Activated KinasesPAK2 protein, humanTumor Necrosis Factor-alpha

Identifiers

PMID19240112
PMCPMC2714430
OpenAlexW1984488117

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.