Julibroside J8-induced HeLa cell apoptosis through caspase pathway.

Abstract

The julibroside J8 was isolated from the Albizia julibrissin and evaluated for antiproliferatived on six cancer cell lines (BGC-823, Bel-7402, HeLa, PC-3MIE8, MDA-MB-435 and LH-60) in vitro. Julibroside J8 at 100 microg mL- 1 (46.08 micromol.L- 1) significantly inhibited growth in the first three cell lines. In addition, in HeLa cells typical apoptotic changes in morphology were observed, and further, nuclear damage was observed by Giemsa staining and DNA fragmentation was exhibited. Effects of julibrosideJ8 on induction of DNA fragmentation, caspase-3 activation and downregulation of ICAD expression were effectively inhibited by a caspase-3 inhibitor, z-DEVD-fmk. In addition, apoptosis induced with julibroside J8 was associated with an increase in expression of the apoptosis inducer Bax, and a significant reduction in expression of the apoptosis suppressor Bcl-2 in mitochondria. These results suggest that julibroside J8 induces HeLa death through caspase pathway.

• Authors: L Zheng, J Zheng, L-J Wu, Y-Y Zhao
• Journal: Journal of Asian natural products research (J Asian Nat Prod Res) 2006 Jul-Aug Vol. 8 Issue 5 Pg. 457-65 ISSN: 1028-6020 [Print] England
• PMID: 16864463 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Antineoplastic Agents, Phytogenic
• Julibroside J8
• Plant Extracts
• Polysaccharides
• Caspases

Topics

• Albizzia
• Antineoplastic Agents, Phytogenic (administration & dosage, pharmacology, therapeutic use)
• Apoptosis (drug effects)
• Caspases (metabolism)
• HeLa Cells (drug effects)
• Humans
• Inhibitory Concentration 50
• Phytotherapy
• Plant Bark
• Plant Extracts (administration & dosage, pharmacology, therapeutic use)
• Polysaccharides (administration & dosage, pharmacology, therapeutic use)