A kinome-centered CRISPR-Cas9 screen identifies activated BRAF to modulate enzalutamide resistance with potential therapeutic implications in BRAF-mutated prostate cancer

Abstract Resistance to drugs targeting the androgen receptor (AR) signaling axis remains an important challenge in the treatment of prostate cancer patients. Activation of alternative growth pathways is one mechanism used by cancer cells to proliferate despite treatment, conferring drug resistance....

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Autores principales: Sander A. L. Palit, Jeroen van Dorp, Daniel Vis, Cor Lieftink, Simon Linder, Roderick Beijersbergen, Andries M. Bergman, Wilbert Zwart, Michiel S. van der Heijden
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Publicado: Nature Portfolio 2021
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Acceso en línea:https://doaj.org/article/397d23f9500a43ac881b9b8bb5c1a817
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spelling oai:doaj.org-article:397d23f9500a43ac881b9b8bb5c1a8172021-12-02T18:18:59ZA kinome-centered CRISPR-Cas9 screen identifies activated BRAF to modulate enzalutamide resistance with potential therapeutic implications in BRAF-mutated prostate cancer10.1038/s41598-021-93107-w2045-2322https://doaj.org/article/397d23f9500a43ac881b9b8bb5c1a8172021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-93107-whttps://doaj.org/toc/2045-2322Abstract Resistance to drugs targeting the androgen receptor (AR) signaling axis remains an important challenge in the treatment of prostate cancer patients. Activation of alternative growth pathways is one mechanism used by cancer cells to proliferate despite treatment, conferring drug resistance. Through a kinome-centered CRISPR-Cas9 screen in CWR-R1 prostate cancer cells, we identified activated BRAF signaling as a determinant for enzalutamide resistance. Combined pharmaceutical targeting of AR and MAPK signaling resulted in strong synergistic inhibition of cell proliferation. The association between BRAF activation and enzalutamide resistance was confirmed in two metastatic prostate cancer patients harboring activating mutations in the BRAF gene, as both patients were unresponsive to enzalutamide. Our findings suggest that co-targeting of the MAPK and AR pathways may be effective in patients with an activated MAPK pathway, particularly in patients harboring oncogenic BRAF mutations. These results warrant further investigation of the response to AR inhibitors in BRAF-mutated prostate tumors in clinical settings.Sander A. L. PalitJeroen van DorpDaniel VisCor LieftinkSimon LinderRoderick BeijersbergenAndries M. BergmanWilbert ZwartMichiel S. van der HeijdenNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Sander A. L. Palit
Jeroen van Dorp
Daniel Vis
Cor Lieftink
Simon Linder
Roderick Beijersbergen
Andries M. Bergman
Wilbert Zwart
Michiel S. van der Heijden
A kinome-centered CRISPR-Cas9 screen identifies activated BRAF to modulate enzalutamide resistance with potential therapeutic implications in BRAF-mutated prostate cancer
description Abstract Resistance to drugs targeting the androgen receptor (AR) signaling axis remains an important challenge in the treatment of prostate cancer patients. Activation of alternative growth pathways is one mechanism used by cancer cells to proliferate despite treatment, conferring drug resistance. Through a kinome-centered CRISPR-Cas9 screen in CWR-R1 prostate cancer cells, we identified activated BRAF signaling as a determinant for enzalutamide resistance. Combined pharmaceutical targeting of AR and MAPK signaling resulted in strong synergistic inhibition of cell proliferation. The association between BRAF activation and enzalutamide resistance was confirmed in two metastatic prostate cancer patients harboring activating mutations in the BRAF gene, as both patients were unresponsive to enzalutamide. Our findings suggest that co-targeting of the MAPK and AR pathways may be effective in patients with an activated MAPK pathway, particularly in patients harboring oncogenic BRAF mutations. These results warrant further investigation of the response to AR inhibitors in BRAF-mutated prostate tumors in clinical settings.
format article
author Sander A. L. Palit
Jeroen van Dorp
Daniel Vis
Cor Lieftink
Simon Linder
Roderick Beijersbergen
Andries M. Bergman
Wilbert Zwart
Michiel S. van der Heijden
author_facet Sander A. L. Palit
Jeroen van Dorp
Daniel Vis
Cor Lieftink
Simon Linder
Roderick Beijersbergen
Andries M. Bergman
Wilbert Zwart
Michiel S. van der Heijden
author_sort Sander A. L. Palit
title A kinome-centered CRISPR-Cas9 screen identifies activated BRAF to modulate enzalutamide resistance with potential therapeutic implications in BRAF-mutated prostate cancer
title_short A kinome-centered CRISPR-Cas9 screen identifies activated BRAF to modulate enzalutamide resistance with potential therapeutic implications in BRAF-mutated prostate cancer
title_full A kinome-centered CRISPR-Cas9 screen identifies activated BRAF to modulate enzalutamide resistance with potential therapeutic implications in BRAF-mutated prostate cancer
title_fullStr A kinome-centered CRISPR-Cas9 screen identifies activated BRAF to modulate enzalutamide resistance with potential therapeutic implications in BRAF-mutated prostate cancer
title_full_unstemmed A kinome-centered CRISPR-Cas9 screen identifies activated BRAF to modulate enzalutamide resistance with potential therapeutic implications in BRAF-mutated prostate cancer
title_sort kinome-centered crispr-cas9 screen identifies activated braf to modulate enzalutamide resistance with potential therapeutic implications in braf-mutated prostate cancer
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/397d23f9500a43ac881b9b8bb5c1a817
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