The Effects of Changes in Testosterone Level on the Development of Cytokines among Patients with Prostate Cancer
Keywords:
Prostate cancer, testosterone, main fibro blast growth factor, insulin-similar growth factor-1, insulin, transforming factor of growth-βAbstract
Objective: To study the mechanism of development of low-differentiated androgen-resistant prostate cancer
Patients and Methods: Fourteen patients with stage 3-4 cancer of the prostate were held under examination. Inspection was carried out before and 1-month after orchiectomy.
Results: One month after orchiectomy all patients showed a significant decrease in levels of testosterone (p <0.005), 5α-dihydrotestosterone, 17β-estradiol (p <0.05) in comparison to initial indicators, while levels of LH and FSH had increased (p <0.001). The reduction of testosterone was accompanied by the increase of prolactin, STH, and estrone (p <0.05). The decrease in the level of testosterone was accompanied by the increase in the levels of insulin, IGF-1 (p <0.05), bFGF (p <0.01), 25-OHVitD3, and Ca++(p <0.05) as well as by a reduction in the levels of βTGF, IL-Iβ, TNFα (P <0.05), acid phosphatase (p <0.01), alkaline phosphatase (p <0.05) and PSA (p <0.005).
Conclusion: After orchiectomy an increase in the level of factors that raised kariomitotic activity was observed, while a decrease in the level of factors regulating the cell cycle and beginning of apoptosis was observed.
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