2011 | Pengfei Lu, Ken Takai, Valerie M. Weaver, Zena Werb
The extracellular matrix (ECM) is a dynamic structure that constantly undergoes remodeling, playing a crucial role in tissue architecture and cellular behavior. ECM remodeling is essential for processes such as stem cell niche maintenance, angiogenesis, and tissue repair. However, abnormal ECM dynamics can lead to diseases like cancer and fibrosis. The ECM provides a structural and biochemical framework that influences cell behavior, including proliferation, migration, and differentiation. It also regulates signaling pathways by modulating the availability and activity of growth factors. The ECM is composed of various proteins, proteoglycans, and glycoproteins, which are degraded and modified by enzymes such as matrix metalloproteinases (MMPs) and a disintegrin and metalloproteinase with thrombospondin motifs (ADAMTSs). These enzymes are tightly regulated to maintain ECM stability and function. ECM dynamics are also influenced by biomechanical properties, which affect cell behavior and tissue function. The ECM provides mechanical cues that cells sense and respond to, influencing processes such as cell migration and differentiation. Additionally, the ECM plays a critical role in stem cell biology, with its components and dynamics regulating stem cell maintenance and differentiation. Overall, the ECM is a dynamic and essential component of the cellular microenvironment, with its remodeling and regulation playing a key role in development and disease.The extracellular matrix (ECM) is a dynamic structure that constantly undergoes remodeling, playing a crucial role in tissue architecture and cellular behavior. ECM remodeling is essential for processes such as stem cell niche maintenance, angiogenesis, and tissue repair. However, abnormal ECM dynamics can lead to diseases like cancer and fibrosis. The ECM provides a structural and biochemical framework that influences cell behavior, including proliferation, migration, and differentiation. It also regulates signaling pathways by modulating the availability and activity of growth factors. The ECM is composed of various proteins, proteoglycans, and glycoproteins, which are degraded and modified by enzymes such as matrix metalloproteinases (MMPs) and a disintegrin and metalloproteinase with thrombospondin motifs (ADAMTSs). These enzymes are tightly regulated to maintain ECM stability and function. ECM dynamics are also influenced by biomechanical properties, which affect cell behavior and tissue function. The ECM provides mechanical cues that cells sense and respond to, influencing processes such as cell migration and differentiation. Additionally, the ECM plays a critical role in stem cell biology, with its components and dynamics regulating stem cell maintenance and differentiation. Overall, the ECM is a dynamic and essential component of the cellular microenvironment, with its remodeling and regulation playing a key role in development and disease.