Proteoglycan Synthesis Pathway

The proteoglycan synthesis pathway refers to the series of cellular processes responsible for producing proteoglycans—macromolecules composed of a core protein covalently attached to one or more glycosaminoglycan (GAG) chains. Proteoglycans are essential components of the extracellular matrix, contributing to tissue structure, hydration, cell signaling, and molecular filtration. Defects in genes encoding enzymes for this pathway can lead to connective tissue disorders due to abnormal extracellular matrix composition or function. Proteoglycans also regulate growth factor availability and modulate inflammation during injury repair processes.