Current Cancer Therapy Reviews

Kurt S. Zaenker
Institute of Immunology and Experimental Oncology University Witten/Herdecke
Stockumerstraße 10, 58448 Witten
Germany

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“Antisurvival” Factor Treatment for Hormone Refractory Prostate Cancer: Secondary Hormonal Ablation Using Somatostatin Analogs

Author(s): David Schilling, Rainer Kufer, Stephan Kruck, Sandra Waalkes, Arnulf Stenzl, Markus A. Kuczyk, Axel S. Merseburger.

Abstract:

About 40 – 60% of the patients with prostate cancer in the hormone independent stage respond to a secondary hormonal manipulation with a temporary decrease of the serum prostate-specific antigen (PSA). PSA progression can be delayed for 4 – 8 months and the onset of a taxane-based chemotherapy with its potentially toxic side effects can be postponed. Traditionally second line antiandrogens, inhibitors of adrenal testosterone production, estrogens or progestin have been applied in secondary hormonal manipulation. Recently somatostatin analogs have been suggested for the treatment of hormone independent prostate cancer. By modulating intracellular pro-proliferative and anti-apoptotic signaling cascades somatostatin analogs influence the tumor cell micro-environment and inhibit tumor progression. In this review we focus on the mode of action and the clinical application of somatostatin analogs in the treatment of hormone- independent prostate cancer. The concept of an “anti-survival factor therapy” is discussed.

Keywords: Prostate cancer, antisurvival factor, prognosis, hormone independence, somatostatin analogs, secondary hormonal treatment, serum, chemotherapy, estrogens, cyclic peptide hormone, half life, inhibit, adrenocorticotropic hormone, pituitary tumors, apoptosis, stromal cell, cell cycle, electrolyte dysbalance, hypoglycemia, gastrointestinal, Dose dependency, vincristine, incubation, hormone sensitivity, sensitization, efficacy, diarrhea, nausea, Biochemical, monotherapy, metastatic regression, survival factor, pain, lymph, neutropenia, glucagon, lethal, oestrogens, corticosteroids

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Article Details

VOLUME: 7
ISSUE: 1
Year: 2011
Page: [56 - 64]
Pages: 9
DOI: 10.2174/157339411794474173