In vitro evaluation of Pandanus amaryllifolius ethanol extract for induction of cell death on non-hormone dependent human breast adenocarcinoma MDA-MB-231 cell via apoptosis

• Published in: BMC complementary and alternative medicine 2012-08, Vol.12 (1), p.134-134, Article 134
• Main Authors: Chong, Hueh Zan, Yeap, Swee Keong, Rahmat, Asmah, Akim, Abdah Md, Alitheen, Noorjahan Banu, Othman, Fauziah, Gwendoline-Ee, Cheng Lian
• Format: Article
• Language: English
• Subjects: Adenocarcinoma; Adenocarcinoma - drug therapy; Adenocarcinoma - physiopathology; Alcohol; Alcohol, Denatured; Analysis; Annexin V; Apoptosis; Apoptosis - drug effects; Biochemistry; Breast cancer; Breast Neoplasms - drug therapy; Breast Neoplasms - physiopathology; Cancer; Caspase; Caspase-3; Cell cycle; Cell Line, Tumor; Cell proliferation; Cell Proliferation - drug effects; Cytochrome c; Cytotoxicity; DNA fragmentation; Drug Evaluation, Preclinical; Enzyme-linked immunosorbent assay; Ethanol; Female; Flow cytometry; Health sciences; Hormones; Hormones - metabolism; Humans; Kinases; Materia medica, Vegetable; MDA-MB-231; Medical equipment and supplies industry; Medical research; Medical test kit industry; Mitochondria; Oncology, Experimental; p53 protein; Pandanaceae - chemistry; Pandanus; Pandanus amaryllifolius; Physiological aspects; Phytochemicals; Plant extracts; Plant Extracts - pharmacology; Proteins; Signal transduction; Studies; Tumor cell lines; Tumor proteins; XIAP protein
• ISSN: 1472-6882; 1472-6882
• DOI: 10.1186/1472-6882-12-134

Our previous study had shown that P. amaryllifolius was able to selectively inhibit cell proliferation of hormone independent breast cancer cell line MDA-MB-231. To understand the mode of killing and mechanism of action for P. amaryllifolius, the ethanol extract was evaluated for their alteration of cell cycle progression, PS externalization, DNA fragmentation and expression of anti/pro-apoptotic related protein. Cell cycle progression analysis, Annexin V and Tunel assays suggested that IC50 of P. amaryllifolius ethanol extract induced G0/G1 cell cycle arrest, PS externalization and DNA fragmentation. On the other hand, ELISA for cytochrome c, caspase-3/7, 8 and 9 indicated that apoptosis was contributed by mitochondrial cytochrome c release via induction of caspase 3/7, 9, and p53 was associated with the suppression of XIAP in P. amaryllifolius treated MDA-MB-231 cells. Our findings suggest that P. amaryllifolius ethanol extract induced apoptosis on hormone independent breast cancer cell line MDA-MB-231.