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Implication of platelet-derived growth factor receptor alpha in prostate cancer skeletal metastasis
Journal article   Open access

Implication of platelet-derived growth factor receptor alpha in prostate cancer skeletal metastasis

Qingxin Liu, Danielle Jernigan, Yun Zhang and Alessandro Fatatis
Ai zheng, v 30(9), pp 612-619
Sep 2011
PMID: 21880182
url
https://doi.org/10.5732/cjc.011.10225View
Published, Version of Record (VoR) Open

Abstract

Prostatic Neoplasms - pathology Receptor, Platelet-Derived Growth Factor alpha - metabolism Signal Transduction Humans Transcriptional Activation Bone Neoplasms - secondary Antibodies, Monoclonal - therapeutic use Male Bone Marrow - enzymology Animals Receptor, Platelet-Derived Growth Factor alpha - immunology Bone Neoplasms - prevention & control Receptor, Platelet-Derived Growth Factor alpha - antagonists & inhibitors Receptor, Platelet-Derived Growth Factor alpha - genetics Bone Marrow - pathology Prostatic Neoplasms - enzymology Enzyme Activation Prostatic Neoplasms - drug therapy
Metastasis represents by far the most feared complication of prostate carcinoma and is the main cause of death for patients. The skeleton is frequently targeted by disseminated cancer cells and represents the sole site of spread in more than 80% of prostate cancer cases. Compatibility between select malignant phenotypes and the microenvironment of colonized tissues is broadly recognized as the culprit for the organ-tropism of cancer cells. Here, we review our recent studies showing that the expression of platelet-derived growth factor receptor alpha (PDGFRα) supports the survival and growth of prostate cancer cells in the skeleton and that the soluble fraction of bone marrow activates PDGFRα in a ligand-independent fashion. Finally, we offer pre-clinical evidence that this receptor is a viable target for therapy.

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