Acta medica Okayama | VOL. 76
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Roles of Transmembrane Protein 97 (TMEM97) in Adipose Tissue and Skeletal Muscle.

Publication Date Jun 1, 2022

Abstract

The combination of sarcopenia and obesity (sarcopenic obesity) is associated with the development of metabolic syndrome and cardiovascular events. The molecular pathways that develop sarcopenic obesity have studied intensively. Transmembrane protein 97 (TMEM97) is 176 amino acids conserved integral membrane protein with four transmembrane domains that is expressed in several types of cancer. Its physiological significance in adipose tissue and skeletal muscle has been unclear. We studied TMEM97-transgenic mice and mice lacking TMEM97, and our findings indicate that TMEM97 expression is regulated in adipose tissue and skeletal muscle from obesity. TMEM97 represses adipogenesis and promotes myogenesis in vitro. Fat-specific TMEM97 transgenic mice showed systemic insulin resistance. Mice overexpressing TMEM97 in skeletal muscle exhibited systemic insulin resistance. Mice lacking TMEM97 were protected against diet-induced obesity and insulin resistance. These phenotypes are associated with the effects of TMEM97 on inflammation genes in adipose tissue and skeletal muscle. Our findings indicates that there is a link between TMEM97 and chronic inflammation in obesity.

Concepts

Transmembrane Protein 97 Significance In Adipose Tissue Chronic Inflammation In Obesity Adipose Tissue Skeletal Muscle Genes In Adipose Tissue Development Of Metabolic Syndrome Sarcopenic Obesity Systemic Insulin Resistance Diet-induced Obesity

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