Lysosomal Storage Diseases
Lysosomal storage diseases represent a class of inherited metabolic disorders defined by specific enzymatic deficiencies within lysosomes, resulting in the pathological accumulation of undegraded substrates and subsequent cellular dysfunction across various organ systems including bone marrow, liver, spleen, brain, kidneys, eyes, heart, skin, nerves, and joints. The domain encompasses glycogen storage diseases (excluding Pompe), sphingolipidoses like Fabry, Gaucher, Tay-Sachs, Niemann-Pick, Krabbe/CRD/GM1, mucopolysaccharidosis II, Hurler's syndrome, metachromatic leukodystrophy and I-cell disease. These conditions relate to the parent discipline of biochemistry and molecular genetics as fundamental models for studying intracellular trafficking mechanisms, lysosomal degradation pathways, and structure-function relationships between specific enzymes and their cognate substrates.
Questions this Concept answers
- Why can the loss of a single lysosomal enzyme damage organs as different as bone marrow, spleen, brain and eye?
Lysosomal Storage Diseases: Enzyme Deficiencies and Clinical Findings
Lysosomal storage diseases represent a class of inherited metabolic disorders defined by specific enzymatic deficiencies within lysosomes, resulting in the pathological accumulation of undegraded sub…