Protective effects of heat shock protein 70 induction against global warming by using oriental bezoar and ginseng
Inoue, E.; Tsubonoya, T.; Shimizu, Y.; Kawasaki, H.; Ishida, N.
Show abstract
The interest in compounds that protect against heat stress-induced damage has been heightened due to world global warming. We found the protective effects of a Japanese natural drug named BG, containing oriental bezoar and ginseng, against heat stress in Drosophila. BG suppressed the heat-induced shortened lifespan and reduced fertility in Drosophila. Interestingly, the protective effects of BG against heat stress were abolished in heat shock protein 70 (HSP70) mutant flies. To see the protective effects in humans, we applied BG on the cytotoxicity in heat-stressed human hepatic cell line, HepG2. BG suppressed heat stress-induced cytotoxicity at 43{degrees}C, and increased HSP70 and heat shock factor 1 (HSF1) mRNA expression in HepG2 cells. These findings indicate that BG protects against heat stress-induced damage via the HSF1/HSP70 pathway and has potential as a therapeutic agent for heat stress-induced disorders, including heatstroke even in human.
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