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- W2741214977 abstract "Epigenetics is now emerging as a key regulation in response to various stresses. We herein identified the Drosophila histone methyltransferase G9a (dG9a) as a key factor to acquire tolerance to starvation stress. The depletion of dG9a led to high sensitivity to starvation stress in adult flies, while its overexpression induced starvation stress resistance. The catalytic domain of dG9a was not required for starvation stress resistance. dG9a plays no apparent role in tolerance to other stresses including heat and oxidative stresses. Metabolomic approaches were applied to investigate global changes in the metabolome due to the loss of dG9a during starvation stress. The results obtained indicated that dG9a plays an important role in maintaining energy reservoirs including amino acid, trehalose, glycogen, and triacylglycerol levels during starvation. Further investigations on the underlying mechanisms showed that the depletion of dG9a repressed starvation-induced autophagy by controlling the expression level of Atg8a, a critical gene for the progression of autophagy, in a different manner to that in cancer cells. These results indicate a positive role for dG9a in starvation-induced autophagy." @default.
- W2741214977 created "2017-08-08" @default.
- W2741214977 creator A5006320896 @default.
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- W2741214977 date "2017-08-04" @default.
- W2741214977 modified "2023-10-13" @default.
- W2741214977 title "Epigenetic regulation of starvation-induced autophagy in Drosophila by histone methyltransferase G9a" @default.
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- W2741214977 doi "https://doi.org/10.1038/s41598-017-07566-1" @default.
- W2741214977 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/5544687" @default.
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- W2741214977 hasPublicationYear "2017" @default.
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