TY - JOUR T1 - Repression of Cell Proliferation and Androgen Receptor Activity in Prostate Cancer Cells by 2’-Hydroxyflavanone JF - Anticancer Research JO - Anticancer Res SP - 4453 LP - 4461 VL - 33 IS - 10 AU - MITSUO OFUDE AU - ATSUSHI MIZOKAMI AU - MISAKO KUMAKI AU - KOUJI IZUMI AU - HIROYUKI KONAKA AU - YOSHIFUMI KADONO AU - YASUHIDE KITAGAWA AU - MINKYOUNG SHIN AU - JIAN ZHANG AU - EVAN T. KELLER AU - MIKIO NAMIKI Y1 - 2013/10/01 UR - http://ar.iiarjournals.org/content/33/10/4453.abstract N2 - 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. ER -