ArticleThe ISME journal2025
Milk IgA promotes symbionts and limits pathobionts in the early life gut.
Article in The ISME journal, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- Disrupting the vicious cycle of malnutrition and enteropathy: advancing strategies to improve child physical and neurocognitive outcomes.Frontiers in public health · 2026Review
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Secretory Immunoglobulin A (SIgA) is the dominant mucosal antibody and a key regulator of the gut microbiota. In early life, infants rely on breastmilk as their primary source of SIgA, but the role of milk-derived SIgA in early life microbiota colonization dynamics remains incompletely understood. Here, we show that species-specific SIgA in milk is antigen-inducible and discriminates between closely related but immunologically diverging microbes in the neonatal gut. More specifically, milk species-specific SIgA promotes colonization by an anti-inflammatory Escherichia coli strain while restricting the expansion of pro-inflammatory Proteus mirabilis. These findings uncover a dual role of maternal milk SIgA in actively sculpting the early life gut microbiota with species-level precision.
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