Role of chitin and chitinase/chitinase-like proteins in inflammation, tissue remodeling, and injury.
Annu Rev Physiol
; 73: 479-501, 2011.
Article
en En
| MEDLINE
| ID: mdl-21054166
ABSTRACT
The 18 glycosyl hydrolase family of chitinases is an ancient gene family that is widely expressed from prokaryotes to eukaryotes. In mammals, despite the absence of endogenous chitin, a number of chitinases and chitinase-like proteins (C/CLPs) have been identified. However, their roles have only recently begun to be elucidated. Acidic mammalian chitinase (AMCase) inhibits chitin-induced innate inflammation; augments chitin-free, allergen-induced Th2 inflammation; and mediates effector functions of IL-13. The CLPs BRP-39/YKL-40 (also termed chitinase 3-like 1) inhibit oxidant-induced lung injury, augments adaptive Th2 immunity, regulates apoptosis, stimulates alternative macrophage activation, and contributes to fibrosis and wound healing. In accord with these findings, levels of YKL-40 in the lung and serum are increased in asthma and other inflammatory and remodeling disorders and often correlate with disease severity. Our understanding of the roles of C/CLPs in inflammation, tissue remodeling, and tissue injury in health and disease is reviewed below.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Quitina
/
Quitinasas
/
Remodelación de las Vías Aéreas (Respiratorias)
/
Inflamación
Tipo de estudio:
Prognostic_studies
Límite:
Animals
/
Humans
Idioma:
En
Revista:
Annu Rev Physiol
Año:
2011
Tipo del documento:
Article
País de afiliación:
Estados Unidos