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Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Cell 2014 ; 157 (6): 1279-91 Nephropedia Template TP
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Meteorin-like is a hormone that regulates immune-adipose interactions to increase beige fat thermogenesis #MMPMID24906147
Rao RR; Long JZ; White JP; Svensson KJ; Lou J; Lokurkar I; Jedrychowski MP; Ruas JL; Wrann CD; Lo JC; Camera DM; Lachey J; Gygi S; Seehra J; Hawley JA; Spiegelman BM
Cell 2014[Jun]; 157 (6): 1279-91 PMID24906147show ga
Exercise training benefits many organ systems and offers protection against metabolic disorders such as obesity and diabetes. Using the recently identified isoform of PGC1-? (PGC1-?4) as a discovery tool, we report the identification of meteorin-like (Metrnl), a circulating factor that is induced in muscle after exercise and in adipose tissue upon cold exposure. Increasing circulating levels of Metrnl stimulates energy expenditure, improves glucose tolerance and the expression of genes associated with beige fat thermogenesis and anti-inflammatory cytokines. Metrnl stimulates an eosinophil-dependent increase in IL-4 expression and promotes alternative activation of adipose tissue macrophages, which are required for the increased expression of the thermogenic and anti-inflammatory gene programs in fat. Importantly, blocking Metrnl actions in-vivo significantly attenuates chronic cold exposure-induced alternative macrophage activation and thermogenic gene responses. Thus, Metrnl links host adaptive responses to the regulation of energy homeostasis and tissue inflammation, and has therapeutic potential for metabolic and inflammatory diseases.