We have been studying subcutaneous white adipose tissue (SC WAT) beiging in response to mirabegron, which is a ß3 adrenergic receptor (ß3AR) agonist. ß3ARs are found in adipocytes and smooth muscle, and mirabegron is an FDA approved drug for overactive bladder. Treatment of obese, insulin resistant humans for twelve weeks with mirabegron consistently induced SC WAT beiging and this led to improved oral glucose tolerance and a lower HbA1c. This may be exploited to prevent conversion of prediabetes to diabetes or used as a therapeutic in diabetics. This application will also increase our understanding of the mechanism(s) by which mirabegron acts, which may reveal new therapeutic targets.
Investigator(s):
P. Kern
Jin Chen
Funding:
1R01DK124626-01A1 (NCI/NIH)