Evidence map›Paper›PMID 22314500›Full record

ArticleCellular and molecular life sciences : CMLS2012

Palmitoylation by DHHC3 is critical for the function, expression, and stability of integrin α6β4.

Chandan Sharma, Isaac Rabinovitz, Martin E Hemler

Open access · greenAbstract read
In one paragraph

Article in Cellular and molecular life sciences : CMLS, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
1.7field-weighted citation impact, top 19% 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

40 citing papers in PubMed, 53 citations in OpenAlex.

  1. Article
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  7. S-acylation of CaChronic diseases and translational medicine · 2024
    Review
  8. Mechanisms and functions of protein S-acylation.Nature reviews. Molecular cell biology · 2024
    Review
  9. Article
  10. Article
  11. Review
  12. Review
  13. Article
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  17. Article
  18. Antioxidant functions of DHHC3 suppress anti-cancer drug activities.Cellular and molecular life sciences : CMLS · 2021
    Article
  19. Review
  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

3 authors at 2 institutions in 1 country.

Chandan SharmaDepartment of Cancer Immunology and AIDS, Dana-Farber Cancer Institute, Boston, MA 02215, USA.
Isaac Rabinovitz
Martin E Hemler
Dana-Farber Cancer Institute · USBeth Israel Deaconess Medical Center · US

Funding

Support of carcinoma metastasis by integrin a6-CD151-PKC complexesR01CA042368 · NCI · DANA-FARBER CANCER INSTITUTE · PI HEMLER, MARTIN E · 1986 to 2019
$5.4M
TRANSMEMBRANE LINKER FUNCTIONS OF TM4SF PROTEINSR01GM038903 · NIGMS · DANA-FARBER CANCER INSTITUTE · PI HEMLER, MARTIN E · 1987 to 2011
$3.7M
NCI NIH HHS R01 CA042368NIGMS NIH HHS GM38903NIGMS NIH HHS R01 GM038903
6 · The paper itself

Abstract

The laminin-binding integrin α6β4 plays key roles in both normal epithelial and endothelial cells and during tumor cell progression, metastasis, and angiogenesis. Previous cysteine mutagenesis studies have suggested that palmitoylation of α6β4 protein supports a few integrin-dependent functions and molecular associations. Here we took another approach and obtained strikingly different results. We used overexpression and RNAi knockdown in multiple cell types to identify protein acyl transferase DHHC3 as the enzyme responsible for integrin β4 and α6 palmitoylation. Ablation of DHHC3 markedly diminished integrin-dependent cellular cable formation on Matrigel, integrin signaling through Src, and β4 phosphorylation on key diagnostic amino acids (S1356 and 1424). However, unexpectedly, and in sharp contrast to prior α6β4 mutagenesis results, knockdown of DHHC3 accelerated the degradation of α6β4, likely due to an increase in endosomal exposure to cathepsin D. When proteolytic degradation was inhibited (by Pepstatin A), rescued α6β4 accumulated intracellularly, but was unable to reach the cell surface. DHHC3 ablation effects were strongly selective for α6β4. Cell-surface levels of ~10 other proteins (including α3β1) were not diminished, and the appearance of hundreds of other palmitoylated proteins was not altered. Results obtained here demonstrate a new substrate for the DHHC3 enzyme and provide novel opportunities for modulating α6β4 expression, distribution, and function.

Indexed as

LipoylationAcyltransferasesEnzyme StabilityFlow CytometryFluorescent Antibody TechniqueGene Knockdown TechniquesHEK293 CellsHumansIntegrin alpha6beta4PhosphorylationRNA InterferenceRNA, Small InterferingSignal TransductionAcyltransferasesIntegrin alpha6beta4RNA, Small InterferingZDHHC3 protein, human

Identifiers

PMID22314500
PMCPMC3406256
OpenAlexW2064879990

What OpenQuestion holds

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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.