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TAp63 contributes to sexual dimorphism in POMC neuron functions and energy homeostasis.

ABSTRACT: Sexual dimorphism exists in energy balance, but the underlying mechanisms remain unclear. Here we show that the female mice have more pro-opiomelanocortin (POMC) neurons in the arcuate nucleus of hypothalamus than males, and female POMC neurons display higher neural activities, compared to male counterparts. Strikingly, deletion of the transcription factor, TAp63, in POMC neurons confers "male-like" diet-induced obesity (DIO) in female mice associated with decreased POMC neural activities; but the same deletion does not affect male mice. Our results indicate that TAp63 in female POMC neurons contributes to the enhanced POMC neuron functions and resistance to obesity in females. Thus, TAp63 in POMC neurons is one key molecular driver for the sexual dimorphism in energy homeostasis.

SUBMITTER: Wang C

PROVIDER: S-EPMC5906443 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature

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TAp63 contributes to sexual dimorphism in POMC neuron functions and energy homeostasis.

Wang Chunmei C He Yanlin Y Xu Pingwen P Yang Yongjie Y Saito Kenji K Xia Yan Y Yan Xiaofeng X Hinton Antentor A Yan Chunling C Ding Hongfang H Yu Likai L Shu Gang G Gupta Rajat R Wu Qi Q Tong Qingchun Q Lagor William R WR Flores Elsa R ER Xu Yong Y

Nature communications 20180418 1

Sexual dimorphism exists in energy balance, but the underlying mechanisms remain unclear. Here we show that the female mice have more pro-opiomelanocortin (POMC) neurons in the arcuate nucleus of hypothalamus than males, and female POMC neurons display higher neural activities, compared to male counterparts. Strikingly, deletion of the transcription factor, TAp63, in POMC neurons confers "male-like" diet-induced obesity (DIO) in female mice associated with decreased POMC neural activities; but t ...[more]

PMID: 29670083

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