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- Pellinen, T (author)
ITGB1-dependent upregulation of Caveolin-1 switches TGFβ signalling from tumour-suppressive to oncogenic in prostate cancer
- Article/chapterEnglish2018
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- 2018-02-05
- Springer Science and Business Media LLC,2018
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- LIBRIS-ID:oai:prod.swepub.kib.ki.se:137597237
- http://kipublications.ki.se/Default.aspx?queryparsed=id:137597237URI
- https://doi.org/10.1038/s41598-018-20161-2DOI
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- Language:English
- Summary in:English
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- Caveolin-1 (CAV1) is over-expressed in prostate cancer (PCa) and is associated with adverse prognosis, but the molecular mechanisms linking CAV1 expression to disease progression are poorly understood. Extensive gene expression correlation analysis, quantitative multiplex imaging of clinical samples, and analysis of the CAV1-dependent transcriptome, supported that CAV1 re-programmes TGFβ signalling from tumour suppressive to oncogenic (i.e. induction of SLUG, PAI-1 and suppression of CDH1, DSP, CDKN1A). Supporting such a role, CAV1 knockdown led to growth arrest and inhibition of cell invasion in prostate cancer cell lines. Rationalized RNAi screening and high-content microscopy in search for CAV1 upstream regulators revealed integrin beta1 (ITGB1) and integrin associated proteins as CAV1 regulators. Our work suggests TGFβ signalling and beta1 integrins as potential therapeutic targets in PCa over-expressing CAV1, and contributes to better understand the paradoxical dual role of TGFβ in tumour biology.
Added entries (persons, corporate bodies, meetings, titles ...)
- Blom, S (author)
- Sanchez, S (author)
- Valimaki, K (author)
- Mpindi, JP (author)
- Azegrouz, H (author)
- Strippoli, R (author)
- Nieto, R (author)
- Viton, M (author)
- Palacios, I (author)
- Turkki, R (author)
- Wang, YH (author)
- Sanchez-Alvarez, M (author)
- Nordling, S (author)
- Butzow, A (author)
- Mirtti, T (author)
- Rannikko, A (author)
- Montoya, MC (author)
- Kallioniemi, OKarolinska Institutet (author)
- del Pozo, MA (author)
- Karolinska Institutet (creator_code:org_t)
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- In:Scientific reports: Springer Science and Business Media LLC8:1, s. 2338-2045-2322
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