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Inhibition of hedgehog signaling promotes white adipose tissue browning. | LitMetric

Inhibition of hedgehog signaling promotes white adipose tissue browning.

Mol Cell Endocrinol

Nanjing Maternal and Child Health Medical Institute, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, 210004, China. Electronic address:

Published: December 2020

AI Article Synopsis

Article Abstract

White adipose tissue (WAT) browning is a potential strategy to treat obesity, and is characterized by the formation of brown adipocytes induced by cold or β-3 adrenergic receptor (β-3AR) agonist treatment. The hedgehog (Hh) signaling at the primary cilium is closely related to obesity, and plays a key role in the differentiation and adipogenesis of adipocytes. However, little is known about its effects on WAT browning. In this study, browning models were used to evaluate the activity and effect of Hh signaling on WAT browning using Hh antagonists, agonist, and small-interfering RNAs (siRNAs) specific for glioma-associated oncogene homologue 1 (Gli1), smoothened (Smo), and suppressor of fused (Sufu). We observed that Hh signaling activity was inhibited during the browning process both in vivo and in vitro. Further, Hh signaling inhibition enhanced WAT browning, while its activation attenuated norepinephrine-induced browning. Thus, the inhibition of Hh signaling promotes WAT browning and therefore, Hh signaling may be a therapeutic target against obesity and associated comorbidities.

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Source
http://dx.doi.org/10.1016/j.mce.2020.110970DOI Listing

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