期刊
INOSITOL PHOSPHOLIPID SIGNALING IN PHYSIOLOGY AND DISEASE
卷 1280, 期 -, 页码 44-47出版社
BLACKWELL SCIENCE PUBL
DOI: 10.1111/nyas.12037
关键词
phosphoinositide 3-kinase; G protein-coupled receptors; chronic inflammation; obesity; atherosclerosis; leukocytes; adipocytes; thrombocytes; plaque formation
类别
资金
- Swiss National Science Foundation [310030-127574, 31EM30-126143, 31003A-118172, 31003A-135684]
- European Foundation for the Study of Diabetes (EFSD)
- Swiss National Science Foundation (SNF) [31003A_135684, 31003A-118172, 31EM30-126143, 310030_127574] Funding Source: Swiss National Science Foundation (SNF)
Phosphoinositide 3-kinase gamma (PI3K gamma) plays a central role in inflammation, allergy, cardiovascular, and metabolic disease. Obesity is accompanied by chronic, low-grade inflammation. As PI3K gamma plays a major role in leukocyte recruitment, targeting of PI3K gamma has been considered to be a strategy for attenuating progression of obesity to insulin resistance and type 2 diabetes. Indeed, PI3K gamma null mice are protected from high fat diet-induced obesity, metabolic inflammation, fatty liver, and insulin resistance. The lean phenotype of the PI3K gamma-null mice has been linked to increased thermogenesis and energy expenditure. Surprisingly, the increase in fat mass and metabolic aberrations were not linked to PI3K gamma activity in the hematopoietic compartment. Thermogenesis and oxygen consumption are modulated by PI3K gamma lipid kinase-dependent and -independent signaling mechanisms. PI3K gamma signaling controls metabolic and inflammatory stress, and may provide an entry point for therapeutic strategies in metabolic disease, inflammation, and cardiovascular disease.
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