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Target intelligence / Profile preview
Glycosaminoglycan Substrate (Keratan Sulfate, Chondroitin 6-Sulfate) Catabolism via Lysosomal Degradation (GAG Catabolism)
- Target
- GAG Catabolism
- Molecular classification
- Metabolic Pathway, Lysosomal Process
01
Overview
Glycosaminoglycan (GAG) catabolism, specifically the degradation of keratan sulfate (KS) and chondroitin 6-sulfate (CS-6), is a crucial process occurring within lysosomes. It involves the sequential action of multiple acid hydrolases, including endoglycosidases, exoglycosidases, and sulfatases, to break down these complex polysaccharides into monosaccharides and inorganic sulfate. This pathway is essential for tissue remodeling, extracellular matrix turnover, and preventing the accumulation of GAGs, which can lead to mucopolysaccharidoses (MPS) if the pathway is disrupted due to enzyme deficiencies.
- Other names
- Keratan Sulfate DegradationChondroitin 6-Sulfate DegradationKS CatabolismCS-6 CatabolismLysosomal GAG Degradation
02
Biological functions
Extracellular matrix turnoverTissue remodelingRegulation of cell signalingMaintenance of lysosomal functionGAG homeostasis
03
Disease associations
Mucopolysaccharidoses (MPS)Lysosomal storage disorders
04
Safety considerations
Off-target effects on other lysosomal pathwaysPotential for immune response to enzyme replacement therapySubstrate accumulation leading to lysosomal dysfunction
05
Biomarkers
GAG levels in urine or bloodLysosomal enzyme activity
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