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Hyperthermia, a modality of cancer therapy, has been known as a stress to induce apoptosis. However, the molecular mechanism of heat shock-induced apoptosis, especially on roles of intracellular oxidative stress, is not fully understood. First, when human lymphoma U937 cells were treated with heat shock (44∘C, 30 min), the fraction of apoptosis, revealed by phosphatidylserine externalization, increased...
Hydroxyl radicals (·OH) and superoxide anion radicals (O2·−) are known to play cardinal roles in cell killing and various types of cell damage. In order to elucidate the mechanism of the involvement of both free radicals on apoptosis, the correlation between anti-apoptotic effects and free radical scavenging abilities of anti-oxidants was studied. As an indicator of anti-apoptotic effects,...
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