PMID- 17615985 OWN - NLM STAT- MEDLINE DCOM- 20071030 LR - 20070709 IS - 1009-3591 (Print) IS - 1009-3591 (Linking) VI - 13 IP - 6 DP - 2007 Jun TI - [Chinese herbal medicine PC-SPES II induces the apoptosis of androgen-independent prostate carcinoma cell line PC-3]. PG - 563-7 AB - OBJECTIVE: To study the action mechanism of a Chinese herbal mixture PC-SPES II inducing the apoptosis of androgen independent prostate adenocarcinoma cell line (PC-3). METHODS: The growth of PC-3 was shown by MTT. Immunofluorescence staining of acridine orange (AO) and flow cytometry were used to detect the apoptosis. The expressions of the apoptosis-related proteins were analyzed with their monoclonal or polyclonal antibodies after Western blotting. RESULTS: PC-SPES II not only inhibited the growth of PC-3 cells but also induced their death. The apoptosis of PC-3 cells treated with PC-SPES II was detected by immunofluorescence staining of AO and flow cytometry, which showed the apoptotic cells to be (29.8 +/- 5.6)%, but the untreated control cells (0.06 +/- 0.014)%, (P < 0.01). The expression of Bcl-2 and Bcl-xL, two antiapoptosis proteins, was decreased while Bax, a pro apoptosis protein, was elevated in the cells treated with PC-SPES II as compared with the untreated control (P < 0.01). Accordingly, the expression of the activated fragments of caspase-3 was also increased (P < 0.01). CONCLUSION: The Chinese herbal mixture PCSPES II can induce the apoptosis of PC-3. Its mechanism may lie in the up-regulation of Bax expression and down-regulation of Bcl-2 and Bcl-xL expressions, which induce the activated fragments of caspase-3 by mitochondria. FAU - Du, Guang AU - Du G AD - Department of Urology, ST. Luke's Hospital, Shanghai 200050, China. FAU - Zhang, Zheng-wang AU - Zhang ZW FAU - Zhang, Yong-kang AU - Zhang YK FAU - Guo, Jian-ming AU - Guo JM LA - chi PT - English Abstract PT - Journal Article PL - China TA - Zhonghua Nan Ke Xue JT - Zhonghua nan ke xue = National journal of andrology JID - 101093592 RN - 0 (Drugs, Chinese Herbal) RN - 0 (herbal preparation PC-SPES) SB - IM MH - Apoptosis/*drug effects MH - Cell Line, Tumor MH - Drugs, Chinese Herbal/*pharmacology/therapeutic use MH - Humans MH - Male MH - *Phytotherapy MH - Prostatic Neoplasms/*drug therapy/pathology EDAT- 2007/07/10 09:00 MHDA- 2007/10/31 09:00 CRDT- 2007/07/10 09:00 PHST- 2007/07/10 09:00 [pubmed] PHST- 2007/10/31 09:00 [medline] PHST- 2007/07/10 09:00 [entrez] PST - ppublish SO - Zhonghua Nan Ke Xue. 2007 Jun;13(6):563-7.