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Functional screen identifies kinases driving prostate cancer visceral and bone metastasis
Journal article   Open access   Peer reviewed

Functional screen identifies kinases driving prostate cancer visceral and bone metastasis

Claire M Faltermeier, Justin M Drake, Peter M Clark, Bryan A Smith, Yang Zong, Carmen Volpe, Colleen Mathis, Colm Morrissey, Brandon Castor, Jiaoti Huang, …
Proceedings of the National Academy of Sciences - PNAS, v 113(2), pp E172-E181
12 Jan 2016
PMID: 26621741
url
https://doi.org/10.1073/pnas.1521674112View
Published, Version of Record (VoR)Maybe Open Access (Publisher Bronze) Open

Abstract

Animals Bone and Bones - pathology Bone Neoplasms - pathology Bone Neoplasms - secondary Cell Line, Tumor Gene Expression Profiling Humans Lentivirus Lung - metabolism Male Mice Mice, SCID Neoplasm Proteins - metabolism Phosphoproteins - metabolism Prostatic Neoplasms - pathology Protein Kinases - metabolism Proteomics src-Family Kinases - metabolism Viscera - pathology
Mutationally activated kinases play an important role in the progression and metastasis of many cancers. Despite numerous oncogenic alterations implicated in metastatic prostate cancer, mutations of kinases are rare. Several lines of evidence suggest that nonmutated kinases and their pathways are involved in prostate cancer progression, but few kinases have been mechanistically linked to metastasis. Using a mass spectrometry-based phosphoproteomics dataset in concert with gene expression analysis, we selected over 100 kinases potentially implicated in human metastatic prostate cancer for functional evaluation. A primary in vivo screen based on overexpression of candidate kinases in murine prostate cells identified 20 wild-type kinases that promote metastasis. We queried these 20 kinases in a secondary in vivo screen using human prostate cells. Strikingly, all three RAF family members, MERTK, and NTRK2 drove the formation of bone and visceral metastasis confirmed by positron-emission tomography combined with computed tomography imaging and histology. Immunohistochemistry of tissue microarrays indicated that these kinases are highly expressed in human metastatic castration-resistant prostate cancer tissues. Our functional studies reveal the strong capability of select wild-type protein kinases to drive critical steps of the metastatic cascade, and implicate these kinases in possible therapeutic intervention.

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Collaboration types
Domestic collaboration
Web of Science research areas
Oncology
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