PMID- 32277668 OWN - NLM STAT- MEDLINE DCOM- 20201209 LR - 20210908 IS - 2241-6293 (Electronic) IS - 1107-0625 (Linking) VI - 25 IP - 1 DP - 2020 Jan-Feb TI - Antiproliferative activities of auraptenol against drug-resistant human prostate carcinoma cells are mediated via programmed cell death, endogenous ROS production, and targeting the JNK/p38 MAPK signal pathways. PG - 454-459 AB - PURPOSE: Prostate cancer is considered to be one of the most common cancers in men and as such there is a pressing need for finding new therapeutic agents to treat this disease. Therefore, the main purpose of the current research work was to study the anticancer effects of a naturally occurring coumarin- Auraptenol- against drug-resistant human prostate cancer cells and evaluate its effects on programmed cell death, reactive oxygen species (ROS) production, and JNK/p38 MAPK signalling pathway. METHODS: Cell proliferation was examined by CCK8 cell viability assay. Apoptosis-related studies were checked by fluorescent microscopy using acridine orange (AO)/ethidium bromide (EB) and Hoechst staining, as well as flow cytometry using annexin V/propidium iodide (PI) assay. Western blot was used to study the effects of Auraptenol on apoptosis-related protein expressions including Bax, Bcl-2, as well as JNK/p38 MAPK signalling pathway. ROS production was evaluated by flow cytometry. RESULTS: The results showed that Auraptenol caused significant reduction in the viability of the human LNCaP prostate carcinoma cells in a dose-dependent manner, exhibiting an IC50 of 25 microM in cancer cells and IC50 of 100 microM in normal PNT2 cells. The AO/EB staining assay showed that Auraptenol inhibited the viability of cancer cells via induction of apoptotic cell death, which was associated with increase in Bax and decrease in Bcl-2 levels. Hoechst staining results also confirmed that Auraptenol induced programmed cell death. The apoptotic cells increased from 0.8% in the control to 32.5% in the study group at 50 microM concentration of Auraptenol. Auraptenol also induced an increase in ROS production in a dose-dependent manner. Finally, this molecule blocked the JNK/p38 MAPK signal pathway concentration-dependently in human prostate cancer cells. CONCLUSION: In conclusion, the current study indicates that this molecule could be developed as a potential anticancer drug against human prostate carcinoma provided further studies are carried out. FAU - Liu, Yunli AU - Liu Y AD - Department of Urological Surgery, the second affiliated hospital of Harbin Medical University, Harbin, Heilongjiang, China, 150001. FAU - Li, Xuedong AU - Li X FAU - Chen, Zhaoyan AU - Chen Z FAU - Chan, Yunhui AU - Chan Y LA - eng PT - Journal Article PL - Cyprus TA - J BUON JT - Journal of B.U.ON. : official journal of the Balkan Union of Oncology JID - 100883428 RN - 0 (Coumarins) RN - 0 (Reactive Oxygen Species) RN - 0 (auraptenol) RN - EC 2.7.11.24 (p38 Mitogen-Activated Protein Kinases) SB - IM ECI - J BUON. 2021 May-Jun;26(3):1183. PMID: 34269000 MH - Apoptosis/*drug effects MH - Coumarins/pharmacology/*therapeutic use MH - Humans MH - MAP Kinase Signaling System/*drug effects MH - Male MH - Prostatic Neoplasms/*drug therapy/pathology MH - Reactive Oxygen Species/metabolism MH - Signal Transduction/*drug effects MH - p38 Mitogen-Activated Protein Kinases/*metabolism EDAT- 2020/04/12 06:00 MHDA- 2020/12/15 06:00 CRDT- 2020/04/12 06:00 PHST- 2020/04/12 06:00 [entrez] PHST- 2020/04/12 06:00 [pubmed] PHST- 2020/12/15 06:00 [medline] PST - ppublish SO - J BUON. 2020 Jan-Feb;25(1):454-459.