Nutrient sensor O-GlcNAc transferase controls cancer lipid metabolism via SREBP-1 regulation.
Nutrient sensor O-GlcNAc transferase controls cancer lipid metabolism via SREBP-1 regulation.
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DOI:
10.1038/onc.2017.395
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发表时间:
2018-02-15
期刊:
影响因子:
8
通讯作者:
Reginato MJ
中科院分区:
文献类型:
--
作者:
Sodi VL;Bacigalupa ZA;Ferrer CM;Lee JV;Gocal WA;Mukhopadhyay D;Wellen KE;Ivan M;Reginato MJ
Elevated O-GlcNAcylation is associated with disease states such as diabetes and cancer. O-GlcNAc transferase (OGT) is elevated in multiple cancers and inhibition of this enzyme genetically or pharmacologically inhibits oncogenesis. Here we show that O-GlcNAcylation modulates lipid metabolism in cancer cells. OGT regulates expression of the master lipid regulator the transcription factor sterol regulatory element binding protein 1 (SREBP-1) and its transcriptional targets both in cancer and lipogenic tissue. OGT regulates SREBP-1 protein expression via AMP Activated protein kinase (AMPK). SREBP-1 is critical for OGT-mediated regulation of cell survival and of lipid synthesis, as overexpression of SREBP-1 rescues lipogenic defects associated with OGT suppression, and tumor growth in vitro and in vivo. These results unravel a previously unidentified link between O-GlcNAcylation, lipid metabolism and the regulation of SREBP-1 in cancer and suggests a crucial role for O-GlcNAc signaling in transducing nutritional state to regulate lipid metabolism.
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影响因子:
21.3
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8
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Li X;Wu JB;Li Q;Shigemura K;Chung LW;Huang WC
通讯作者:
Huang WC
影响因子:
4.3
作者:
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通讯作者:
Schulze A
影响因子:
8
作者:
Buzzai, M;Bauer, DE;Thompson, CB
通讯作者:
Thompson, CB