Ablation of endothelial VEGFR1 improves metabolic dysfunction by inducing adipose tissue browning.

Ablation of endothelial VEGFR1 improves metabolic dysfunction by inducing adipose tissue browning.
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DOI:
10.1084/jem.20171012
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发表时间:
2018-02-05
期刊:
The Journal of experimental medicine
影响因子:
--
通讯作者:
Cao Y
Cao Y
中科院分区:
其他
文献类型:
--
作者:
Seki T;Hosaka K;Fischer C;Lim S;Andersson P;Abe M;Iwamoto H;Gao Y;Wang X;Fong GH;Cao Y

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Seki等人的研究表明,在健康和肥胖小鼠中,内皮细胞VEGFR1的消融诱导脂肪组织褐变,这对改善整体代谢功能障碍具有深远的影响。这些发现确立了脂肪血管在控制脂肪细胞代谢功能中的重要作用,并为肥胖和糖尿病的治疗提供了新的治疗选择。血管生成在脂肪组织质量和代谢的调节中起着重要作用。靶向脂肪血管系统为治疗肥胖和代谢紊乱提供了一个绝佳的机会。在这里,我们报道了VEGFR1在调节脂肪血管生成、肥胖和整体代谢中的生理功能。内皮细胞VEGFR1的药理抑制和基因缺失增加了脂肪血管生成和皮下白色脂肪组织的褐变,导致产热升高。在饮食诱导的肥胖模型中,内皮- vegfr1缺乏通过改善整体代谢显示出强大的抗肥胖作用。在代谢变化的同时,缺乏vegfr1的高脂饮食(HFD)喂养小鼠的脂肪肝和胰岛素敏感性也显著改善。总之,我们的数据表明,靶向VEGFR1为肥胖和代谢性疾病(如肝脂肪变性和2型糖尿病)的治疗提供了令人兴奋的新机会。
Seki et al. show that ablation of endothelial VEGFR1 induces adipose tissues browning in healthy and obese mice, which has profound effects on improving global metabolic dysfunctions. These discoveries establish an important role for the adipose vasculature in controlling the metabolic functions of adipocytes and provide new therapeutic options for treatment of obesity and diabetes. Angiogenesis plays an instrumental role in the modulation of adipose tissue mass and metabolism. Targeting adipose vasculature provides an outstanding opportunity for treatment of obesity and metabolic disorders. Here, we report the physiological functions of VEGFR1 in the modulation of adipose angiogenesis, obesity, and global metabolism. Pharmacological inhibition and genetic deletion of endothelial VEGFR1 augmented adipose angiogenesis and browning of subcutaneous white adipose tissue, leading to elevated thermogenesis. In a diet-induced obesity model, endothelial-VEGFR1 deficiency demonstrated a potent anti-obesity effect by improving global metabolism. Along with metabolic changes, fatty liver and insulin sensitivity were also markedly improved in VEGFR1-deficient high fat diet (HFD)–fed mice. Together, our data indicate that targeting of VEGFR1 provides an exciting new opportunity for treatment of obesity and metabolic diseases, such as liver steatosis and type 2 diabetes.
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