The interaction of p130Cas with PKN3 promotes malignant growth

Protein p130Cas constitutes an adaptor protein mainly involved in integrin signaling downstream of Src kinase. Owing to its modular structure, p130Cas acts as a general regulator of cancer cell growth and invasiveness induced by different oncogenes. However, other mechanisms of p130Cas signaling lea...

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Main Authors: Jakub Gemperle, Michal Dibus, Lenka Koudelková, Daniel Rosel, Jan Brábek
Format: Article
Language:English
Published: Wiley 2019-02-01
Series:Molecular Oncology
Subjects:
Online Access:https://doi.org/10.1002/1878-0261.12401
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author Jakub Gemperle
Michal Dibus
Lenka Koudelková
Daniel Rosel
Jan Brábek
author_facet Jakub Gemperle
Michal Dibus
Lenka Koudelková
Daniel Rosel
Jan Brábek
author_sort Jakub Gemperle
collection DOAJ
description Protein p130Cas constitutes an adaptor protein mainly involved in integrin signaling downstream of Src kinase. Owing to its modular structure, p130Cas acts as a general regulator of cancer cell growth and invasiveness induced by different oncogenes. However, other mechanisms of p130Cas signaling leading to malignant progression are poorly understood. Here, we show a novel interaction of p130Cas with Ser/Thr kinase PKN3, which is implicated in prostate and breast cancer growth downstream of phosphoinositide 3‐kinase. This direct interaction is mediated by the p130Cas SH3 domain and the centrally located PKN3 polyproline sequence. PKN3 is the first identified Ser/Thr kinase to bind and phosphorylate p130Cas and to colocalize with p130Cas in cell structures that have a pro‐invasive function. Moreover, the PKN3–p130Cas interaction is important for mouse embryonic fibroblast growth and invasiveness independent of Src transformation, indicating a mechanism distinct from that previously characterized for p130Cas. Together, our results suggest that the PKN3–p130Cas complex represents an attractive therapeutic target in late‐stage malignancies.
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spelling doaj.art-a8150fc97bc04d568eba1811cd1a86f52022-12-22T00:01:20ZengWileyMolecular Oncology1574-78911878-02612019-02-0113226428910.1002/1878-0261.12401The interaction of p130Cas with PKN3 promotes malignant growthJakub Gemperle0Michal Dibus1Lenka Koudelková2Daniel Rosel3Jan Brábek4Department of Cell Biology Faculty of Science – Biocev Charles University Prague 2 Czech RepublicDepartment of Cell Biology Faculty of Science – Biocev Charles University Prague 2 Czech RepublicDepartment of Cell Biology Faculty of Science – Biocev Charles University Prague 2 Czech RepublicDepartment of Cell Biology Faculty of Science – Biocev Charles University Prague 2 Czech RepublicDepartment of Cell Biology Faculty of Science – Biocev Charles University Prague 2 Czech RepublicProtein p130Cas constitutes an adaptor protein mainly involved in integrin signaling downstream of Src kinase. Owing to its modular structure, p130Cas acts as a general regulator of cancer cell growth and invasiveness induced by different oncogenes. However, other mechanisms of p130Cas signaling leading to malignant progression are poorly understood. Here, we show a novel interaction of p130Cas with Ser/Thr kinase PKN3, which is implicated in prostate and breast cancer growth downstream of phosphoinositide 3‐kinase. This direct interaction is mediated by the p130Cas SH3 domain and the centrally located PKN3 polyproline sequence. PKN3 is the first identified Ser/Thr kinase to bind and phosphorylate p130Cas and to colocalize with p130Cas in cell structures that have a pro‐invasive function. Moreover, the PKN3–p130Cas interaction is important for mouse embryonic fibroblast growth and invasiveness independent of Src transformation, indicating a mechanism distinct from that previously characterized for p130Cas. Together, our results suggest that the PKN3–p130Cas complex represents an attractive therapeutic target in late‐stage malignancies.https://doi.org/10.1002/1878-0261.12401BCAR1CASp130CasPKN3SH3Src
spellingShingle Jakub Gemperle
Michal Dibus
Lenka Koudelková
Daniel Rosel
Jan Brábek
The interaction of p130Cas with PKN3 promotes malignant growth
Molecular Oncology
BCAR1
CAS
p130Cas
PKN3
SH3
Src
title The interaction of p130Cas with PKN3 promotes malignant growth
title_full The interaction of p130Cas with PKN3 promotes malignant growth
title_fullStr The interaction of p130Cas with PKN3 promotes malignant growth
title_full_unstemmed The interaction of p130Cas with PKN3 promotes malignant growth
title_short The interaction of p130Cas with PKN3 promotes malignant growth
title_sort interaction of p130cas with pkn3 promotes malignant growth
topic BCAR1
CAS
p130Cas
PKN3
SH3
Src
url https://doi.org/10.1002/1878-0261.12401
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