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Exercise increases transglutaminase 2 expression in skeletal muscle
Tomoya Kitakaze1,2, Manami Dokan1, Yuki Kishi2
1Department of Applied Biological Chemistry, Graduate School of Agriculture, Osaka Metropolitan University, Sakai, Osaka, Japan.
Bioscience, Biotechnology, and Biochemistry
|March 28, 2026
Abstract:
Transglutaminase 2 (TG2) promotes skeletal muscle hypertrophy as a myokine. The expression levels of Tg2 mRNA increased with endurance exercise and were positively correlated with the expression level of Pgc-1α4 mRNA. PGC-1α4 increased Tg2 mRNA expression in cooperation with ATF6α. These findings suggest that the expression level of Tg2 mRNA increases during endurance exercise via ATF-6α and PGC-1α4.

