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논문 기본 정보

자료유형
학술저널
저자정보
김다예 (Asan Institute for Life Sciences University of Ulsan College of Medicine Korea) 박소정 (Asan Institute for Life Sciences University of Ulsan College of Medicine Korea) 이진영 (Asan Institute for Life Sciences University of Ulsan College of Medicine Korea) 김희정 (Department of Neurological Surgery Asan Medical Center Korea) Seungjoo Lee (Department of Neurological Surgery Asan Medical Center Korea) Eunju Lee (Division of Geriatrics Asan Medical Center Seoul Korea) Il-Young Jang (Division of Geriatrics Asan Medical Center Seoul Korea) Hee-Won Jung (Division of Geriatrics Department of Internal Medicine Asan Medical Center Seoul Korea) 박진훈 (Department of Neurological Surgery Asan Medical Center Korea) 김범준 (서울아산병원)
저널정보
대한내분비학회 Endocrinology and Metabolism Endocrinology and Metabolism Vol.36 No.2
발행연도
2021.1
수록면
455 - 465 (11page)

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Background: The C-C motif chemokine ligand 11 (CCL11) has been receiving attention as a potential pro-aging factor. Accordingly, it may be involved in muscle metabolism and sarcopenia, a key component of aging phenotypes. To clarify this potential, we investigated the effects of CCL11 on in vitro muscle biology and its clinical relevance for sarcopenia parameters in older adults. Methods: Myogenesis was induced in mouse C2C12 myoblasts with 2% horse serum. Human blood samples were collected from79 participants who underwent a functional assessment. Thereafter, CCL11 level was measured using a quantikine ELISA kit. Sarcopenia was defined using the Asian-specific guideline. Results: Recombinant CCL11 treatment significantly stimulated myogenesis in a dose-dependent manner, and consistently increased the expression of myogenic differentiation markers. Among the C-C chemokine receptors (CCRs), CCR5, not CCR2 andCCR3, was predominantly expressed in muscle cells. Further, the CCR5 inhibitor blocked recombinant CCL11-stimulated myogenesis. In a clinical study, serum CCL11 level was not significantly different according to the status of sarcopenia, low muscle mass,weak muscle strength, and poor physical performance, and was not associated with skeletal muscle index, grip strength, short physical performance battery score, gait speed, and time to complete 5 chair stands, after adjusting for sex, age, and body mass index. Conclusion: Contrary to expectations, CCL11 exerted beneficial effects on muscle metabolism at least in vitro system. However, itsimpact on human muscle health was not evident, suggesting that circulating CCL11 may not be a useful biomarker for sarcopeniarisk assessment in older adults.

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