Thermotolerance in cultured hepatoma cells: cell viability, cell morphology, protein synthesis, and heat-shock proteins.
Heat treatment at 42 degrees C of cultured Reuber H35 rat hepatoma cells induced both a rapid decrease of the rate of protein synthesis and the rounding up of the cells. Reincubation at 37 degrees C resulted in a gradual flattening of the cells, resumption of protein synthesis, and the synthesis of heat-shock proteins. During the recovery period cells developed a resistance toward a treatment which otherwise should lead to heat-induced cell death. Thermotolerance measured in terms of cell survival was paralleled by thermal resistance of protein synthesis and the cellular ability to refrain from rounding up under heat stress.
D000064:Acclimatization; D000818:Animals; D002460:Cell Line; D002470:Cell Survival; D006360:Heat-Shock Proteins / Q000096:biosynthesis*; D006358:Hot Temperature; D008114:Liver Neoplasms, Experimental / Q000473:pathology* / Q000503:physiopathology / Q000648:ultrastructure; D009363:Neoplasm Proteins / Q000096:biosynthesis*; D051381:Rats
D006360:Heat-Shock Proteins; D009363:Neoplasm Proteins