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Updated: Aug 10, 2026

Isolation and Flow Cytometric Characterization of Murine Small Intestinal Lymphocytes
Published on: May 8, 2016
[Immunopathology of the digestive apparatus in infancy]
Insights
Infants gain immune competence in the neonatal period via gut antigens interacting with lymphoid tissues. Immune deficiencies contribute to various gastrointestinal diseases in infants and children.
Area of Science:
- Immunology
- Gastroenterology
- Neonatal Medicine
Context:
- Infant immune system development relies on gut-associated lymphoid tissues (GALT) for antigen exposure.
- Neonatal period is critical for establishing immunological competence through enteric antigen passage.
- Gut-associated lymphoid tissues, including Peyer's patches and appendix, are key sites for immune development.
Purpose:
- To explore the role of immune deficient mechanisms in neonatal and childhood gastrointestinal diseases.
- To discuss how immune reactions contribute to the pathogenesis of specific GI disorders.
- To elucidate the immunological basis of various infant and childhood gastrointestinal conditions.
Summary:
- Infants develop immunological competence through antigen exposure in the neonatal gut via GALT.
- Immune deficiencies are implicated in several gastrointestinal diseases presenting in infancy and childhood.
- The abstract discusses the mechanisms by which immune reactions drive the pathogenesis of these conditions.
Impact:
- Highlights the link between early life gut immunology and long-term gastrointestinal health.
- Provides insights into the pathogenesis of critical infant GI diseases like necrotising enterocolitis.
- Informs potential therapeutic strategies targeting immune mechanisms in pediatric gastroenterology.
Abstract:
The infant acquires immunological competence in the neonatal period through the passage of antigens from the enteric lumen through gut-associated lymphoid tissues, principally the Peyer's patches and the appendix. Immune deficient mechanisms may be involved in several gastrointestinal diseases manifesting in the neonatal period as well as throughout childhood. Principally among these are neonatal necrotising enterocolitis, atopy and food intolerances, coeliac disease, cow's milk protein intolerance, diarrhoea associated with hypogammaglobulinaemia, malnutrition and inflammatory bowel disease. The mechanism whereby immune reactions are involved in the pathogenesis of these diseases is discussed.
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