期刊
DIABETES-METABOLISM RESEARCH AND REVIEWS
卷 27, 期 8, 页码 919-924出版社
WILEY
DOI: 10.1002/dmrr.1272
关键词
mast cell; obesity; diabetes; cromolyn; ketotifen (Zaditor)
资金
- NHLBI NIH HHS [R01 HL060942-13, HL81090, R01 HL088547-04, HL88547, R01 HL088547, R01 HL081090-06, R01 HL081090, HL60942, R01 HL060942] Funding Source: Medline
Mast cells are essential in allergic responses and beyond. White adipose tissue from obese humans contains large numbers of mast cells. Serum mast cell tryptase levels are also significantly higher in obese subjects than in lean subjects, suggesting a role of these inflammatory cells in obesity and diabetes. Two types of mast cell-deficient mice, along with corresponding wild-type control mice, were fed a Western diet to induce obesity and diabetes. We also used two anti-allergy drugs, cromolyn and ketotifen (Zaditor), to treat wild-type mice during intake of a Western diet or after the onset of obesity and diabetes, to examine the possible prevention or reversal of these conditions. Mast cell deficiency or pharmacological stabilization reduced body weight gain and improved glucose and insulin sensitivities. These common, side effect-free drugs also reduced preestablished obesity and diabetes without noticeable toxicity. Mechanistic studies suggest that mast cells participate in these metabolic disorders by affecting energy expenditure, protease expression, angiogenesis, apoptosis, and preadipocyte differentiation. These observations open a new era of basic research regarding mast cells, and offer hope to patients suffering from these metabolic disorders. Copyright (C) 2011 John Wiley & Sons, Ltd.
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