The myokine meteorin-like (metrnl) improves glucose tolerance in both skeletal muscle cells and mice by targeting AMPK alpha 2
Jung Ok Lee, Won Seok Byun, Min Ju Kang, Jeong Ah Han, Jiyoung Moon, Min-Jeong Shin, Ho Jun Lee, Ji Hyung Chung, Jin-Seok Lee, Chang-Gue Son, Kwon-Ho Song, Tae Woo Kim, Eun-Soo Lee, Hong Min Kim, Choon Hee Chung, Kevin RW Ngoei, Naomi XY Ling, Jonathan S Oakhill, Sandra Galic, Lisa Murray-Segal Show all
FEBS JOURNAL | WILEY | Published : 2020
Meteorin-like (metrnl) is a recently identified adipomyokine that beneficially affects glucose metabolism; however, its underlying mechanism of action is not completely understood. We here show that the level of metrnl increases in vitro under electrical pulse stimulation and in vivo in exercised mice, suggesting that metrnl is secreted during muscle contractions. In addition, metrnl increases glucose uptake via the calcium-dependent AMPKα2 pathway in skeletal muscle cells and increases the phosphorylation of HDAC5, a transcriptional repressor of GLUT4, in an AMPKα2-dependent manner. Phosphorylated HDAC5 interacts with 14-3-3 proteins and sequesters them in the cytoplasm, resulting in the ac..View full abstract
Awarded by Basic Science Research Program through the National Research Foundation of Korea
This work was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF-2019R1A2AC1005916).