Monoacylglycerol lipase regulates a fatty acid network that promotes cancer pathogenesis.

Monoacylglycerol lipase regulates a fatty acid network that promotes cancer pathogenesis.
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DOI:
10.1016/j.cell.2009.11.027
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发表时间:
2010-01-08
期刊:
影响因子:
64.5
通讯作者:
Cravatt BF
Cravatt BF
中科院分区:
生物学1区
文献类型:
--
作者:
Nomura DK;Long JZ;Niessen S;Hoover HS;Ng SW;Cravatt BF

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Tumor cells display progressive changes in metabolism that correlate with malignancy, including development of a lipogenic phenotype. How stored fats are liberated and remodeled to support cancer pathogenesis, however, remains unknown. Here, we show that the enzyme monoacylglycerol lipase (MAGL) is highly expressed in aggressive human cancer cells and primary tumors, where it regulates a fatty acid network enriched in oncogenic signaling lipids that promotes migration, invasion, survival, and in vivo tumor growth. Overexpression of MAGL in non-aggressive cancer cells recapitulates this fatty acid network and increases their pathogenicity -- phenotypes that are reversed by an MAGL inhibitor. Interestingly, impairments in MAGL-dependent tumor growth are rescued by a high-fat diet, indicating that exogenous sources of fatty acids can contribute to malignancy in cancers lacking MAGL activity. Together, these findings reveal how cancer cells can co-opt a lipolytic enzyme to translate their lipogenic state into an array of pro-tumorigenic signals.
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