PMID- 25213146 OWN - NLM STAT- MEDLINE DCOM- 20160201 LR - 20211203 IS - 1098-2744 (Electronic) IS - 0899-1987 (Linking) VI - 54 IP - 11 DP - 2015 Nov TI - Hirsutenone in Alnus extract inhibits akt activity and suppresses prostate cancer cell proliferation. PG - 1354-62 LID - 10.1002/mc.22211 [doi] AB - Although specific compounds found in some East Asian traditional medicines have been shown to exhibit bioactive properties, their molecular mechanisms of action remain elusive. The bark of the Alnus species has been used for the treatment of various pathological conditions including hemorrhage, alcoholism, fever, diarrhea, skin diseases, inflammation, and cancer in East Asia for centuries. In this study, we show that hirsutenone, a bioactive compound in Alnus japonica, exhibits anti-cancer effects against prostate cancer through a direct physical inhibition of Akt1/2. Hirsutenone suppressed anchorage-dependent and independent cell growth of PC3 and LNCaP human prostate cancer cells. Annexin V and Propidium iodide (PI) staining results demonstrated that hirsutenone strongly induces apoptotic cell death in both PC3 and LNCaP cells. Furthermore, treatment of hirsutenone attenuated phosphorylation of mammalian target of rapamycin (mTOR), a downstream substrate of Akt, without affecting Akt phosphorylation. Kinase and pull-down assay results clearly show that hirsutenone inhibits Akt1 and 2 by direct binding in an adenosine triphosphate (ATP)-noncompetitive manner in vitro and ex vivo. Our results show that hirsutenone suppresses human prostate cancer by targeting Akt1 and 2 as a key component to explain for anti-cancer activity of Alnus species. CI - (c) 2014 Wiley Periodicals, Inc. FAU - Kang, Soouk AU - Kang S AD - WCU Biomodulation Major, Center for Food and Bioconvergence, Department of Agricultural Biotechnology, Seoul National University, Seoul, Republic of Korea. AD - The Hormel Institute, University of Minnesota, Austin, Minnesota. FAU - Kim, Jong-Eun AU - Kim JE AD - WCU Biomodulation Major, Center for Food and Bioconvergence, Department of Agricultural Biotechnology, Seoul National University, Seoul, Republic of Korea. AD - The Hormel Institute, University of Minnesota, Austin, Minnesota. FAU - Li, Yan AU - Li Y AD - The Hormel Institute, University of Minnesota, Austin, Minnesota. FAU - Jung, Sung Keun AU - Jung SK AD - WCU Biomodulation Major, Center for Food and Bioconvergence, Department of Agricultural Biotechnology, Seoul National University, Seoul, Republic of Korea. AD - Division of Metabolism and Functionality Research, Korea Food Research Institute, Seongnam, Republic of Korea. FAU - Song, Nu Ry AU - Song NR AD - Advanced Institutes of Convergence Technology, Seoul National University, Suwon, Republic of Korea. FAU - Thimmegowda, N R AU - Thimmegowda NR AD - Chemical Biology Research Center and World Class Institute (WCI), Korea Research Institute of Bioscience and Biotechnology, Ochang, Republic of Korea. FAU - Kim, Bo Yeon AU - Kim BY AD - Chemical Biology Research Center and World Class Institute (WCI), Korea Research Institute of Bioscience and Biotechnology, Ochang, Republic of Korea. FAU - Lee, Hyong Joo AU - Lee HJ AD - Research Institute of Bio Food Industry, Institute of Green Bio Science and Technology, Seoul National University, Pyeongchang, Republic of Korea. FAU - Bode, Ann M AU - Bode AM AD - The Hormel Institute, University of Minnesota, Austin, Minnesota. FAU - Dong, Zigang AU - Dong Z AD - The Hormel Institute, University of Minnesota, Austin, Minnesota. zgdong@hi.umn.edu. FAU - Lee, Ki Won AU - Lee KW AD - WCU Biomodulation Major, Center for Food and Bioconvergence, Department of Agricultural Biotechnology, Seoul National University, Seoul, Republic of Korea. kiwon@snu.ac.kr. AD - Advanced Institutes of Convergence Technology, Seoul National University, Suwon, Republic of Korea. kiwon@snu.ac.kr. AD - Research Institute of Bio Food Industry, Institute of Green Bio Science and Technology, Seoul National University, Pyeongchang, Republic of Korea. kiwon@snu.ac.kr. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140911 PL - United States TA - Mol Carcinog JT - Molecular carcinogenesis JID - 8811105 RN - 0 (Catechols) RN - 0 (Diarylheptanoids) RN - 0 (Plant Extracts) RN - 0 (hirsutenone) RN - 8L70Q75FXE (Adenosine Triphosphate) RN - EC 2.7.1.1 (MTOR protein, human) RN - EC 2.7.11.1 (Proto-Oncogene Proteins c-akt) RN - EC 2.7.11.1 (TOR Serine-Threonine Kinases) SB - IM MH - Adenosine Triphosphate/metabolism MH - Alnus/*chemistry MH - Apoptosis/drug effects MH - Catechols/*pharmacology MH - Cell Line, Tumor MH - Cell Proliferation/*drug effects MH - Diarylheptanoids/*pharmacology MH - Humans MH - Male MH - Phosphorylation/drug effects MH - Plant Extracts/*pharmacology MH - Prostatic Neoplasms/*drug therapy/*metabolism MH - Proto-Oncogene Proteins c-akt/*antagonists & inhibitors MH - Signal Transduction/drug effects MH - TOR Serine-Threonine Kinases/metabolism OTO - NOTNLM OT - akt OT - hirsutenone OT - proliferation OT - prostate cancer EDAT- 2014/09/13 06:00 MHDA- 2016/02/02 06:00 CRDT- 2014/09/13 06:00 PHST- 2014/03/27 00:00 [received] PHST- 2014/06/26 00:00 [revised] PHST- 2014/07/09 00:00 [accepted] PHST- 2014/09/13 06:00 [entrez] PHST- 2014/09/13 06:00 [pubmed] PHST- 2016/02/02 06:00 [medline] AID - 10.1002/mc.22211 [doi] PST - ppublish SO - Mol Carcinog. 2015 Nov;54(11):1354-62. doi: 10.1002/mc.22211. Epub 2014 Sep 11.