文献类型: 外文期刊
作者: Liu, Jie 1 ; Wei, Limin 2 ; Chen, Ting 1 ; Wang, Huan 1 ; Luo, Junyi 1 ; Chen, Xingping 1 ; Jiang, Qingyan 1 ; Xi, Qianyun 1 ; Sun, Jiajie 1 ; Zhang, Lin 1 ; Zhang, Yongliang 1 ;
作者机构: 1.South China Agr Univ, Coll Anim Sci, Guangdong Prov Key Lab Anim Nutr Control, Wushan St, Guangzhou 510642, Guang Dong, Peoples R China
2.Hainan Acad Agr Sci, Sanya Inst, Hainan Experi mental Anim Res Ctr, Sanya 572000, Hainan, Peoples R China
3.Hainan Acad Agr Sci, Inst Anim Husb & Vet Med, Hainan Key Lab Trop Anim Breeding & Dis Res, Haikou 571100, Hainan, Peoples R China
4.Jiangxi Agr Univ, Coll Anim Sci & Technol, Jiangxi Prov Key Lab Anim Nutr, Nanchang 330045, Peoples R China
关键词: BAT; WAT; thermogenesis; miR-143; AC9; SYK
期刊名称:ENDOCRINOLOGY ( 影响因子:4.8; 五年影响因子:4.8 )
ISSN: 0013-7227
年卷期: 2023 年 164 卷 9 期
页码:
收录情况: SCI
摘要: Excessive energy intake is the main cause of obesity, and stimulation of brown adipose tissue (BAT) and white adipose tissue (WAT) thermogenesis has emerged as an attractive tool for antiobesity. Although miR-143 has been reported to be associated with BAT thermogenesis, its role remains unclear. Here, we found that miR-143 had highest expression in adipose tissue, especially in BAT. During short-term cold exposure or CL316,243 was injected, miR-143 was markedly downregulated in BAT and subcutaneous WAT (scWAT). Moreover, knockout (KO) of miR-143 increases the body temperature of mice upon cold exposure, which may be due to the increased thermogenesis of BAT and scWAT. More importantly, supplementation of miR-143 in BAT of KO mice can inhibit the increase in body temperature in KO mice. Mechanistically, spleen tyrosine kinase was revealed for the first time as a new target of miR-143, and deletion of miR-143 facilitates fatty acid uptake in BAT. In addition, we found that brown adipocytes can promote fat mobilization of white adipocytes, and miR-143 may participate in this process. Meanwhile, we demonstrate that inactivation of adenylate cyclase 9 (AC9) in BAT inhibits thermogenesis through AC9-PKA-AMPK-CREB-UCP1 signaling pathway. Overall, our results reveal a novel function of miR-143 on thermogenesis, and a new functional link of the BAT and WAT.
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