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자료유형
학술저널
저자정보
Lee Seul Gi (Kyungpook National University) Chae Jongbeom (Kyungpook National University) Woo Seon Min (Keimyung University) Seo Seung Un (Keimyung University) Kim Ha-Jeong (Kyungpook National University) Kim Sang-Yeob (ASAN Medical Center) Schlaepfer David D. (University of California) Kim In-San (Korea University) Park Hee-Sae (Chonnam National University) Kwon Taeg Kyu (Keimyung University) Nam Ju-Ock (Kyungpook National University)
저널정보
대한생화학·분자생물학회 Experimental and Molecular Medicine Experimental and Molecular Medicine 제55권
발행연도
2023.3
수록면
520 - 531 (12page)
DOI
10.1038/s12276-023-00947-9

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Extracellular matrix proteins are associated with metabolically healthy adipose tissue and regulate inflammation, fibrosis, angiogenesis, and subsequent metabolic deterioration. In this study, we demonstrated that transforming growth factor-beta (TGFBI), an extracellular matrix (ECM) component, plays an important role in adipose metabolism and browning during high-fat diet-induced obesity. TGFBI KO mice were resistant to adipose tissue hypertrophy, liver steatosis, and insulin resistance. Furthermore, adipose tissue from TGFBI KO mice contained a large population of CD11b+ and CD206+ M2 macrophages, which possibly control adipokine secretion through paracrine mechanisms. Mechanistically, we showed that inhibiting TGFBI-stimulated release of adipsin by Notch-1-dependent signaling resulted in adipocyte browning. TGFBI was physiologically bound to Notch-1 and stimulated its activation in adipocytes. Our findings revealed a novel protective effect of TGFBI deficiency in obesity that is realized via the activation of the Notch-1 signaling pathway.

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