Molecular Classification
Enzyme, Glycosyl hydrolase family 18
Disease Roles
Chitotriosidase Overview
Chitotriosidase is an enzyme (EC 3.2.1.14) and the major active chitinase in humans, primarily produced by activated macrophages. It plays a significant role in innate immunity, particularly as a defense mechanism against chitin-containing organisms such as fungi and protozoa. Elevated chitotriosidase activity serves as a biomarker for macrophage activation and is used clinically to monitor diseases characterized by increased macrophage burden or activation.
Mechanism of Action
Endochitinase, cleaving internal β-(1→4)-glycosidic bonds within chitin polymers; also exhibits transglycosylation activity.
Biological Functions
Innate immunity
Chitin degradation
Immunomodulation
Disease Associations
Lysosomal storage disorders
Cardiovascular diseases
Neurodegenerative conditions
Chronic inflammatory states
Infections
Safety Considerations
No safety concerns listed
Associated Biomarkers
Biomarker |
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Elevated chitotriosidase activity in serum/plasma |
Therapy adherence in cystinosis patients treated with cysteamine |