Journal
NEUROREPORT
Volume 12, Issue 12, Pages 2629-2634Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/00001756-200108280-00009
Keywords
apoptosis; apoptosis-related genes; huperzine A; oxidative stress; PC12 cells
Categories
Ask authors/readers for more resources
The present studies investigated effects of huperzine A (HupA), a selective acetylcholinesterase (AChE) inhibitor and promising anti-dementia agent, On hydrogen peroxide (H2O2)-induced apoptosis and the expression of apoptosis-related genes in rat pheochromocytoma line PC12 cells. Transient exposure of the cells to H2O2 (100 muM) triggered a typical apoptosis as evidenced by chromatin condensation, nuclei fragmentation and DNA laddering. RT-PCR studies showed up-regulated p53 and Bax but lowered Bcl-2 mRNA levels with H2O2 treatment. The results were further confirmed at protein levels by immunocytochemistry with specific antibodies. Preincubation with HupA (1 muM) significantly prevented the cells from apoptosis, attenuated H2O2-induced over-expression of Bax and p53, and rehabilitated the level of Bcl-2. The present findings suggest that HupA exerts significant protection against H2O2-induced apoptosis, possibly through improving expression of apoptosis-related genes. NeuroReport 12:2629-2634 (C) 2001 Lippincott Williams & Wilkins.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available