The host microenvironment influences prostate cancer invasion, systemic spread, bone colonization, and osteoblastic metastasis

Sourik S. Ganguly, Xiaohong Li, Cindy K. Miranti

Research output: Contribution to journalReview articlepeer-review

40 Scopus citations

Abstract

Prostate cancer (PCa) is the 2nd leading cause of cancer death in men worldwide. Most PCa deaths are due to osteoblastic bone metastases. What triggers PCa metastasis to the bone and what causes osteoblastic lesions remain unanswered. A major contributor to PCa metastasis is the host microenvironment. Here we address how the primary tumor microenvironment influences PCa metastasis via integrins, extracellular proteases, and transient epitheliamesenchymal transition (EMT) to promote PCa progression, invasion, and metastasis. We discuss how the bone microenvironment influences metastasis; where chemotactic cytokines favor bone homing, adhesion molecules promote colonization, and bone-derived signals induce osteoblastic lesions. Animal models that fully recapitulate human PCa progression from primary tumor to bone metastasis are needed to understand the PCa pathophysiology that leads to bone metastasis. Better delineation of the specific processes involved in PCa bone metastasize is needed to prevent or treat metastatic PCa. Therapeutic regimens that focus on the tumor microenvironment could add to the PCa pharmacopeia.

Original languageEnglish (US)
Article number364
JournalFrontiers in Oncology
Volume4
Issue numberNOV
DOIs
StatePublished - 2014
Externally publishedYes

Keywords

  • Bone metastasis
  • Cancer
  • EMT
  • Prostate
  • Tumor microenvironment

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

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