Evidence map›Paper›PMID 25568317›Full record

ArticleThe Journal of biological chemistry2015

The αvβ6 integrin is transferred intercellularly via exosomes.

Carmine Fedele, Amrita Singh, Brad J Zerlanko, Renato V Iozzo, Lucia R Languino

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 117 papers.

0numbers the graph read from it
0cells of the map it votes in
117citing papers in PubMed
7.4field-weighted citation impact, top 2% 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

117 citing papers in PubMed, 167 citations in OpenAlex.

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  12. The epidermal integrin-mediated secretome regulates the skin microenvironment during tumorigenesis and repair.Matrix biology : journal of the International Society for Matrix Biology · 2024
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57 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

5 authors at 2 institutions in 2 countries.

Carmine FedeleFrom the Prostate Cancer Discovery and Development Program,; Department of Cancer Biology, Sidney Kimmel Cancer Center, and.
Amrita SinghFrom the Prostate Cancer Discovery and Development Program,; Department of Cancer Biology, Sidney Kimmel Cancer Center, and.
Brad J ZerlankoFrom the Prostate Cancer Discovery and Development Program,; Department of Cancer Biology, Sidney Kimmel Cancer Center, and.
Renato V IozzoDepartment of Cancer Biology, Sidney Kimmel Cancer Center, and; Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, Pennsylvania 19107. Electronic address: Lucia.Languino@jefferson.edu.
Lucia R LanguinoFrom the Prostate Cancer Discovery and Development Program,; Department of Cancer Biology, Sidney Kimmel Cancer Center, and.
Prostate Cancer UK · GBThomas Jefferson University · US

Funding

X-Ray Crystallography and Macromolecular CharacterizationP30CA056036 · NCI · THOMAS JEFFERSON UNIVERSITY · PI DANIEL P SILVER · 1995 to 2026
$94.8M
Role of Runx2 in prostate tumorigenesis and metastasisP01CA140043 · NCI · WISTAR INSTITUTE · PI ALTIERI, DARIO C · 2010 to 2021
$12.2M
INTEGRIN SIGNALING PATHWAYS IN PROSTATE CANCERR01CA089720 · NCI · YALE UNIVERSITY · PI LANGUINO, LUCIA R. · 2001 to 2014
$2.8M
Beta1 Integrins and IGF-l Receptor in Prostate CancerR01CA109874 · NCI · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI LANGUINO, LUCIA R. · 2005 to 2015
$2.7M
Integrin Signaling Pathways in Prostate CancerR56CA089720 · NCI · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI LANGUINO, LUCIA R. · 2009 to 2009
$169k
NCI NIH HHS CA089720NCI NIH HHS P01 CA140043NCI NIH HHS P30 CA056036NCI NIH HHS P30CA056036NCI NIH HHS R01 CA089720NCI NIH HHS R01 CA109874NCI NIH HHS R56 CA089720
6 · The paper itself

Abstract

Exosomes, cell-derived vesicles of endosomal origin, are continuously released in the extracellular environment and play a key role in intercellular crosstalk. In this study, we have investigated whether transfer of integrins through exosomes between prostate cancer (PrCa) cells occurs and whether transferred integrins promote cell adhesion and migration. Among others, we have focused on the αvβ6 integrin, which is not detectable in normal human prostate but is highly expressed in human primary PrCa as well as murine PrCa in Pten(pc-/-) mice. After confirming the fidelity of the exosome preparations by electron microscopy, density gradient, and immunoblotting, we determined that the αvβ6 integrin is actively packaged into exosomes isolated from PC3 and RWPE PrCa cell lines. We also demonstrate that αvβ6 is efficiently transferred via exosomes from a donor cell to an αvβ6-negative recipient cell and localizes to the cell surface. De novo αvβ6 expression in an αvβ6-negative recipient cell is not a result of a change in mRNA levels but is a consequence of exosome-mediated transfer of this integrin between different PrCa cells. Recipient cells incubated with exosomes containing αvβ6 migrate on an αvβ6 specific substrate, latency-associated peptide-TGFβ, to a greater extent than cells treated with exosomes in which αvβ6 is stably or transiently down-regulated by shRNA or siRNA, respectively. Overall, this study shows that exosomes from PrCa cells may contribute to a horizontal propagation of integrin-associated phenotypes, which would promote cell migration, and consequently, metastasis in a paracrine fashion.

Indexed as

Gene ExpressionAnimalsAntigens, NeoplasmCell LineCell MovementExosomesHumansIntegrinsMaleMiceMice, KnockoutNeoplasm MetastasisNeoplasmsParacrine CommunicationTransfectionTransforming Growth Factor beta1Antigens, Neoplasmintegrin alphavbeta6IntegrinsTransforming Growth Factor beta1AdhesionCell AdhesionExosomeExtracellular MatrixIntegrinProstate CancerTetraspanin

Identifiers

PMID25568317
PMCPMC4335196
OpenAlexW2043956016

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.