Evidence map›Paper›PMID 17615290›Full record

ArticleBlood2007

Requirement of alpha and beta subunit transmembrane helix separation for integrin outside-in signaling.

Jieqing Zhu, Christopher V Carman, Minsoo Kim, Motomu Shimaoka, Timothy A Springer, Bing-Hao Luo

Open access · bronzeAbstract read
In one paragraph

Article in Blood, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed
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

70 citing papers in PubMed, 123 citations in OpenAlex.

  1. Article
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  4. FERMT2 drives anoikis resistance and peritoneal metastasis by enhancing extracellular matrix deposition in gastric cancer.Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association · 2025
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  14. Article
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  16. Article
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  20. Review

10 more citing papers are in PubMed but not listed here.

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

6 authors at 3 institutions in 1 country.

Jieqing ZhuThe CBR Institute for Biomedical Research and Department of Pathology, Harvard Medical School, Boston, MA 02115, USA.
Christopher V Carman
Minsoo Kim
Motomu Shimaoka
Timothy A Springer
Bing-Hao Luo
Harvard University · USBeth Israel Deaconess Medical Center · USBrown University · US

Funding

STRUCTURE OF INTEGRINS AND YWTD BETA PROPELLER DOMAINSP01HL048675 · NHLBI · IMMUNE DISEASE INSTITUTE, INC. · PI SPRINGER, TIMOTHY A · 1992 to 2009
$20.9M
LFA-1 in Lymphocyte MigrationR01HL087088 · NHLBI · UNIVERSITY OF ROCHESTER · PI KIM, MINSOO · 2007 to 2015
$3.8M
NHLBI NIH HHS HL48675NHLBI NIH HHS P01 HL048675NHLBI NIH HHS R01 HL087088
6 · The paper itself

Abstract

Adhesion to extracellular ligands through integrins regulates cell shape, migration, growth, and survival. How integrins transmit signals in the outside-to-in direction remains unknown. Whereas in resting integrins the alpha and beta subunit transmembrane domains are associated, ligand binding promotes dissociation and separation of these domains. Here we address whether such separation is required for outside-in signaling. By introduction of an intersubunit disulfide bond, we generated mutant integrin alphaIIbbeta3 with blocked transmembrane separation that binds ligand, mediates adhesion, adopts an extended conformation after ligand binding, and forms antibody-induced macroclusters on the cell surface similarly to wild type. However, the mutant integrin exhibits a profound defect in adhesion-induced outside-in signaling as measured by cell spreading, actin stress-fiber and focal adhesion formation, and focal adhesion kinase activation. This defect was rescued by reduction of the disulfide bond. Our results demonstrate that the separation of transmembrane domains is required for integrin outside-in signal transduction.

Indexed as

Signal TransductionAnimalsCell AdhesionCell LineCell MembraneCricetinaeDisulfidesEnzyme ActivationFocal Adhesion Protein-Tyrosine KinasesHumansLigandsMutationPhosphotyrosinePlatelet Glycoprotein GPIIb-IIIa ComplexProtein SubunitsSolubilityDisulfidesFocal Adhesion Protein-Tyrosine KinasesLigandsPhosphotyrosinePlatelet Glycoprotein GPIIb-IIIa ComplexProtein Subunits

Identifiers

PMID17615290
PMCPMC1988953
OpenAlexW2077277541

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.