Lysosomal System

The lysosomal system is a network of membrane-bound organelles within eukaryotic cells, primarily lysosomes, responsible for the degradation and recycling of various biomolecules. It serves as the cell’s primary catabolic center, breaking down proteins, nucleic acids, lipids, and polysaccharides into their basic building blocks using a diverse set of hydrolytic enzymes. The lysosomal system is essential not only for cellular clearance but also plays direct roles in signaling pathways regulating metabolism, immunity, apoptosis initiation, plasma membrane repair and overall cellular homeostasis. Dysfunctional lysosomal activity underlies many human diseases ranging from neurodegeneration to immunodeficiencies and metabolic syndromes.