Signal transduction targets in androgen-independent prostate cancer

Jian Zhou, Jessica Scholes, Jer Tsong Hsieh

Research output: Contribution to journalReview article

21 Scopus citations

Abstract

Prostate cancer (PCa) first manifests as an androgen-dependent disease. Thus, androgen-deprivation therapy is a standard regimen for patients with metastatic PCa. Despite the initial success of androgen-deprivation therapy, PCa inevitably progresses from being androgen dependent (AD) to androgen independent (AI), and this marks the poor prognosis of this disease. Relapse of AIPCa becomes life threatening and accounts for the majority of mortality of PCa patients. Currently, no effective therapy is available for controlling AIPCa. Therefore, the challenge in providing a new intervention is to understand the fundamental changes that occur in AIPCa. Increasing evidence indicates that, under androgen-deprived milieu, several signal networks elicited by peptide growth factors dictate the AI phenotype of PCa. This review covers the latest studies investigating the potential involvement of autocrine growth factors in cell proliferation, survival, metastasis, and the reciprocal interaction with the androgen receptor pathway. In addition, loss of the negative feedback mechanism of the signal cascade further amplifies the effect of growth factors, and thus contributes significantly to the onset of AIPCa. The understanding of the signal target(s) in AIPCa should provide the new markers for prognosis and a new strategy for prevention and therapy.

Original languageEnglish (US)
Pages (from-to)351-362
Number of pages12
JournalCancer and Metastasis Reviews
Volume20
Issue number3-4
DOIs
StatePublished - Jan 1 2001

Keywords

  • Androgen-independent prostate cancer
  • Growth factor
  • Prostate cancer
  • Signal transduction
  • Tumor suppressor

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

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