RT Journal Article SR Electronic T1 Repression of Cell Proliferation and Androgen Receptor Activity in Prostate Cancer Cells by 2’-Hydroxyflavanone JF Anticancer Research JO Anticancer Res FD International Institute of Anticancer Research SP 4453 OP 4461 VO 33 IS 10 A1 MITSUO OFUDE A1 ATSUSHI MIZOKAMI A1 MISAKO KUMAKI A1 KOUJI IZUMI A1 HIROYUKI KONAKA A1 YOSHIFUMI KADONO A1 YASUHIDE KITAGAWA A1 MINKYOUNG SHIN A1 JIAN ZHANG A1 EVAN T. KELLER A1 MIKIO NAMIKI YR 2013 UL http://ar.iiarjournals.org/content/33/10/4453.abstract AB Background: Prevention of the development of castration-resistant from hormone-naïve prostate cancer is an important issue in maintaining the quality of life of the patients. We explored the effect of 2’-hydroxyflavanone on proliferation and androgen responsiveness using prostate cancer cell lines. Materials and Methods: To investigate the effect of 2’-hydroxyflavanone on proliferation, prostate cancer cells were treated with 2’-hydroxyflavanone. Androgen-responsiveness in LNCaP cells was confirmed by luciferase assay after transfection of luciferase reporter driven by prostate specific antigen promoter. To detect androgen receptor (AR) expression, reverse transcriptase polymerase chain reaction and western blot analysis were conducted. Results: 2’-Hydroxyflavanone inhibited the proliferation of PC-3 and DU145 cells by induction of apoptosis. 2’-Hydroxyflavanone inhibited the proliferation of LNCaP cells stimulated by androgens and attenuated androgen-responsiveness through down-regulation of AR protein. Conclusion: 2’-Hydroxyflavanone not only inhibited proliferation of prostate cancer cells, but also repressed androgen-responsiveness, suggesting that it might be a useful agent in preventing recurrence of prostate cancer.