通过IL-33和ST2进行热生成的产周许可
Justin I Odegaard1, Min-Woo Lee1, Yoshitaka Sogawa1
1Cardiovascular Research Institute, University of California, San Francisco, San Francisco, CA 94143-0795, USA.
Cell
|July 26, 2016
概括
干白素-33 (IL-33) 对于激活胎盘哺乳动物的热生成至关重要. 这种细胞因子会释放棕色和色脂肪细胞,
科学领域:
- 生理学
- 免疫学
- 发育生物学
背景情况:
- 胎盘哺乳动物需要发热才能生存.
- 脂肪细胞中的解蛋白1 (UCP1) 是热生成的关键.
- 激发脂肪细胞发热的机制尚不清楚.
研究的目的:
- 研究IL-33在发热脂肪细胞中的作用.
- 阐明IL-33调节UCP1表达的分子机制.
主要方法:
- 在脂肪细胞中分析UCP1mRNA拼接.
- 评估UCP1蛋白水平和脱呼吸.
- 在IL-33和ST2缺陷模型中评估温度调节.
主要成果:
- IL-33及其受体ST2对于棕色和色脂肪细胞中的UCP1表达是必不可少的.
- 缺少IL-33或ST2导致UCP1结合和功能受损.
- 缺乏IL-33或ST2的小鼠表现出缺陷的温度调节.
结论:
- IL-33作为一个发育开关,授权脂肪细胞进行热生成.
- 在胎盘哺乳动物中,IL-33和ST2对于产周温度调节至关重要.
- 这一途径对于进入产后生活至关重要.
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