Secretory immunoglobulin A (SIgA) is one important line of defense in the intestinal mucosal surface to protect the intestinal epithelium from enteric toxins and pathogenic microorganisms. Multiple factors, such as intestinal microbiota, intestinal cytokines, and nutrients are highly involved in production of SIgA in the intestine. Recently, glutamine has been shown to affect intestinal SIgA production; however, the underlying mechanism by which glutamine stimulates secretion of intestinal SIgA is unknown. Here, we review current knowledge regarding glutamine in intestinal immunity and show that glutamine-enhanced secretion of SIgA in the intestine may involve intestinal microbiota, intestinal antigen sampling and presentation, induction pathways for SIgA production by plasma cells (both T-dependent and T-independent pathway), and even transport of SIgA. Altogether, the glutamine-intestinal SIgA axis has broad therapeutic implications for intestinal SIgA-associated diseases, such as celiac disease, allergies, and inflammatory bowel disease.
Glutamine-Induced Secretion of Intestinal Secretory Immunoglobulin A: A Mechanistic Perspective
W. Ren,Kai Wang,J. Yin,Shuai Chen,Gang Liu,B. Tan,Guoyao Wu,F. Bazer,Yuanyi Peng,Yulong Yin
Published 2016 in Frontiers in Immunology
ABSTRACT
PUBLICATION RECORD
- Publication year
2016
- Venue
Frontiers in Immunology
- Publication date
2016-11-24
- Fields of study
Biology, Medicine
- Identifiers
- External record
- Source metadata
Semantic Scholar, PubMed
CITATION MAP
EXTRACTION MAP
CLAIMS
CONCEPTS
- allergies
Hypersensitivity conditions involving inappropriate immune responses to otherwise harmless antigens.
Aliases: allergy
- celiac disease
An immune-mediated intestinal disorder triggered by dietary gluten.
- glutamine
A conditionally essential amino acid discussed here as a nutritional factor influencing intestinal immunity.
- inflammatory bowel disease
A group of chronic inflammatory disorders affecting the gastrointestinal tract.
Aliases: IBD
- intestinal antigen sampling and presentation
The mucosal process by which intestinal antigens are captured and presented to immune cells.
Aliases: antigen sampling, antigen presentation
- intestinal microbiota
The community of microorganisms living in the intestinal tract and interacting with mucosal immunity.
Aliases: gut microbiota
- intestinal secretory immunoglobulin a
The polymeric antibody present in the intestinal mucosal surface that contributes to mucosal immune defense.
Aliases: SIgA, secretory immunoglobulin A
- plasma cells
Antibody-secreting B cells in mucosal tissues that produce immunoglobulins.
- secretory iga transport
The transcellular movement of secretory IgA across the intestinal epithelium into the lumen.
Aliases: SIgA transport
REFERENCES
CITED BY
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