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Attractin-Like Protein 1 (ATRNL1): An Essential Partner of MC4R to Regulate Body Weight

2026-01-16 endocrinology Title + abstract only
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The melanocortin 4 receptor (MC4R) plays a critical role in the central control of energy homeostasis and its disruption causes severe early onset obesity. The MC4R agonist Imcivree has been approved for the treatment of certain genetic obesity syndromes. Here we demonstrate that the membrane-spanning protein Attractin-like protein 1 (ATRNL1) directly interacts with MC4R to amplify its signaling in cells and that expression of ATRNL1 potentiates the activation of MC4R neurons by MC4R agonists in...

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