Department of Medical Biotechnology, Yeungnam University, Gyeongsan 38541, Korea.
Department of Biomedical Science, Daegu Catholic University, Gyeongsan 38430, Korea.
Int J Mol Sci. 2020 May 28;21(11):3845. doi: 10.3390/ijms21113845.
The extracellular matrix (ECM) provides a scaffold for cells, controlling biological processes and providing structural as well as mechanical support to surrounding cells. Disruption of ECM homeostasis results in several pathological conditions. Skeletal muscle ECM is a complex network comprising collagens, proteoglycans, glycoproteins, and elastin. Recent therapeutic approaches targeting ECM remodeling have been extensively deliberated. Various ECM components are typically found to be augmented in the skeletal muscle of obese and/or diabetic humans. Skeletal muscle ECM remodeling is thought to be a feature of the pathogenic milieu allied with metabolic dysregulation, obesity, and eventual diabetes. This narrative review explores the current understanding of key components of skeletal muscle ECM and their specific roles in the regulation of metabolic diseases. Additionally, we discuss muscle-specific integrins and their role in the regulation of insulin sensitivity. A better understanding of the importance of skeletal muscle ECM remodeling, integrin signaling, and other factors that regulate insulin activity may help in the development of novel therapeutics for managing diabetes and other metabolic disorders.
细胞外基质(ECM)为细胞提供支架,控制着生物过程,并为周围细胞提供结构和机械支撑。ECM 稳态的破坏会导致多种病理状况。骨骼肌 ECM 是一个由胶原蛋白、蛋白聚糖、糖蛋白和弹性蛋白组成的复杂网络。目前已经广泛讨论了针对 ECM 重塑的各种治疗方法。通常在肥胖和/或糖尿病患者的骨骼肌中发现各种 ECM 成分增加。骨骼肌 ECM 重塑被认为是与代谢失调、肥胖和最终糖尿病相关的致病环境的一个特征。本综述探讨了骨骼肌 ECM 的关键成分及其在代谢性疾病调节中的特定作用的最新认识。此外,我们还讨论了肌肉特异性整合素及其在胰岛素敏感性调节中的作用。更好地了解骨骼肌 ECM 重塑、整合素信号以及调节胰岛素活性的其他因素的重要性,可能有助于开发治疗糖尿病和其他代谢性疾病的新疗法。