Solution of the molecular mechanism about proliferation / recurrence of the prostate cancer and the architecture of the comprehensive treatment strategy for he prostate cancer

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We performed cDNA microarray analysis with normal prostate tissue and the prostate cancer tissue, and identified SOD3 as the gene which the expression attenuated with prostate cancer tissue.We revealed that expression diminishment of SOD3 was associated with proliferation of prostate cancer, migration, and invasion. Also, we paid attention to extracellular matrix SPARC. Expression of SPARC attenuated with prostate cancer-derived stromal cells than normal stromal cells, and inhibited a proliferation and the migration of the cancer cells by inhibiting AKT phosphorylation. SPARC acted on cancer cells via integrin beta 1 as a receptor. Also, 2'-hydroxyflavanone which is the plant flavonoid showed antitumor effect for prostate cancer via apoptosis, and revealed that 2'-hydroxyflavanone inhibited androgen receptor activity, but did not inhibit androgen synthesis.