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. 1984 Jun;49(6):753–758. doi: 10.1038/bjc.1984.118

The effects of glutathione depletion on thermotolerance and heat stress protein synthesis.

A Russo, J B Mitchell, S McPherson
PMCID: PMC1976852  PMID: 6733022

Abstract

The effects of cellular glutathione depletion by buthionine sulfoximine on the development of thermotolerance and synthesis of heat stress protein was studied. Cellular glutathione levels were found to increase rapidly following an acute heat treatment of either 12 min at 45.5 degrees C or 1 h at 43 degrees C and remain elevated for prolonged periods. Glutathione depletion and prevention of glutathione synthesis by buthionine sulfoximine resulted in inhibition of the development of thermotolerance and a decrease in total protein as well as specific heat stress proteins. While the degree of inhibition of thermotolerance was similar for both glutathione depletion protocols, inhibition in heat stress protein synthesis was greater when glutathione was depleted to low levels prior to heating. The possible role of glutathione and the cellular redox state to thermotolerance and synthesis of heat stress protein is discussed.

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Selected References

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