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Cancers 2011, 3(1), 478-493; doi:10.3390/cancers3010478

From Prostate to Bone: Key Players in Prostate Cancer Bone Metastasis

Section of Urology, Department of Surgery, The University of Chicago, Chicago, IL 60637, USA
Department of Molecular Pathogenesis and Molecular Medicine, The University of Chicago, Chicago, IL 60637, USA
Department of Human Genetics, The University of Chicago, Chicago, IL 60637, USA
These authors contributed equally to this work.
Author to whom correspondence should be addressed.
Received: 21 December 2010 / Revised: 20 January 2011 / Accepted: 20 January 2011 / Published: 27 January 2011
(This article belongs to the Special Issue Organ-Specific Metastasis Formation)
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Bone is the most common site for metastasis in human prostate cancer patients. Skeletal metastases are a significant cause of morbidity and mortality and overall greatly affect the quality of life of prostate cancer patients. Despite advances in our understanding of the biology of primary prostate tumors, our knowledge of how and why secondary tumors derived from prostate cancer cells preferentially localize bone remains limited. The physiochemical properties of bone, and signaling molecules including specific chemokines and their receptors, are distinct in nature and function, yet play intricate and significant roles in prostate cancer bone metastasis. Examining the impact of these facets of bone metastasis in vivo remains a significant challenge, as animal models that mimic the natural history and malignant progression clinical prostate cancer are rare. The goals of this article are to discuss (1) characteristics of bone that most likely render it a favorable environment for prostate tumor cell growth, (2) chemokine signaling that is critical in the recruitment and migration of prostate cancer cells to the bone, and (3) current animal models utilized in studying prostate cancer bone metastasis. Further research is necessary to elucidate the mechanisms underlying the extravasation of disseminated prostate cancer cells into the bone and to provide a better understanding of the basis of cancer cell survival within the bone microenvironment. The development of animal models that recapitulate more closely the human clinical scenario of prostate cancer will greatly benefit the generation of better therapies.
Keywords: prostate; metastasis; bone; chemokines prostate; metastasis; bone; chemokines

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Thobe, M.N.; Clark, R.J.; Bainer, R.O.; Prasad, S.M.; Rinker-Schaeffer, C.W. From Prostate to Bone: Key Players in Prostate Cancer Bone Metastasis. Cancers 2011, 3, 478-493.

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