Mucosal defense mechanism in health and disease. Role of the mucosal immune system
- PMID: 1502899
- DOI: 10.1111/j.1440-1827.1992.tb03243.x
Mucosal defense mechanism in health and disease. Role of the mucosal immune system
Abstract
The mucosal immune system is characterized predominantly by the secretory antibody response and gut-associated lymphoid tissue, cellular part of the mucosal immune system. The secretory antibody system depends on local production and selective epithelial transport of secretory IgA and IgM. Furthermore, secretory antibodies and interactions between the intestinal epithelium and T cells are involved in the mucosal down-regulation of the systemic immune system. Neuropeptides play a crucial role in the regulation of mucosal immune responses. It is possible that impairment of the mucosal immune response contributes to the pathogenesis of various intestinal diseases, such as inflammatory bowel disease. Until recently, however, mucosal immunity received relatively little attention from both basic and clinical scientists. Further research on mucosal immunity seems to have promise in helping to provide new understanding of the immune mechanisms and pathogenesis of several gastrointestinal and systemic diseases.
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