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Updated: Dec 19, 2025
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Generating a Reproducible Model of Mid-Gestational Maternal Immune Activation using PolyI:C to Study Susceptibility and Resilience in Offspring
Published on: August 17, 2022
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La leche materna modula la herencia inmune transgeneracional
Jakob Zimmermann1, Andrew J Macpherson1
1Maurice Müller Laboratories (Department for BioMedical Research), Universitätsklinik für Viszerale Chirurgie und Medizin Inselspital, Murtenstrasse 35, University of Bern, 3008 Bern, Switzerland.
Cell
|June 5, 2020
Resumen
La leche materna, específicamente la inmunoglobulina A, no regula genéticamente las células T reguladoras de ROR-γt+ (Tregs) después del nacimiento. Esta herencia de inmunoglobulina A influye en la inflamación del colon y el aclaramiento del patógeno por parte de los ROR-γt+ Tregs.
Área de la Ciencia:
- Inmunología
- Microbiología
- Biología del desarrollo
Sus antecedentes:
- Las células T reguladoras ROR-γt+ (Tregs) en el colon equilibran la inflamación y la defensa del patógeno.
- Los mecanismos reguladores que rigen la función ROR-γt+ Treg siguen siendo en gran medida desconocidos.
Objetivo del estudio:
- Aclarar los factores no genéticos que controlan el punto de ajuste y la función de ROR-γt+ Treg.
- Comprender la contribución materna al desarrollo del sistema inmunológico en los recién nacidos.
Principales métodos:
- Investigó el papel de los factores maternos en el desarrollo de ROR-γt+ Treg.
- Utilizó la inmunoglobulina A (IgA) como un foco clave para los estudios de herencia materna.
- Examinado las ventanas de tiempo crítico para la programación inmune después del nacimiento.
Principales resultados:
- Se identificó la herencia materna no genética como un factor crítico para el punto de ajuste de ROR-γt+ Treg.
- Se ha demostrado que la inmunoglobulina A en la leche materna media esta herencia.
- Se estableció una ventana crítica después del nacimiento para esta programación inmune a través de la IgA materna.
Conclusiones:
- La inmunoglobulina A materna transmitida a través de la leche materna es esencial para la programación de los ROR-γt+ Tregs.
- Esta transferencia materna influye en la homeostasis inmune del colon, afectando la inflamación y el aclaramiento de patógenos.
- Comprender este mecanismo ofrece información sobre el desarrollo inmunológico temprano y las posibles intervenciones.
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