ArticlePLoS neglected tropical diseases2026
Maternal expression and breast milk transfer of an mRNA- encoded monoclonal antibody in a murine model of cholera.
Article in PLoS neglected tropical diseases, 2026. 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.
- Developing affordable monoclonal antibodies for LMICs through high performance manufacturing processes and LMIC based commercial manufacturing.Frontiers in pediatrics · 2026Article
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Breast milk confers infants with immunity to a multitude of pathogens reflective of prior maternal infections and vaccinations. However, in outbreak situations where infants may be vulnerable to lethal infections due to gaps in the maternal immune repertoire, a case can be made for supplementing breast milk with one or more pathogen-specific monoclonal antibodies (mAbs) with known prophylactic or therapeutic activity. As oral delivery of recombinant IgG and IgA mAbs to infants has proven challenging, we investigated the use of mRNA-lipid nanoparticle (LNP) technology to stimulate pathogen-specific mAbs in milk. mRNA encoding the Vibrio cholerae O1 specific mAb, ZAC-3, as a human IgG1 or dimeric IgA2, was encapsulated in lipid nanoparticles (LNP) and administered parenterally to lactating and non-lactating female mice. A single intravenous administration of mRNA-LNPs resulted in high and sustained expression of functional ZAC-3 IgG1 in the blood and breast milk of lactating dams. ZAC-3 IgA2 levels were lower and more transient. ZAC-3 IgG1 (but not IgA2) was also detected in the serum of suckling pups at levels proportional to those in the mothers, demonstrating successful transfer of functional antibodies to newborns. Levels of ZAC-3 IgG1 and IgA2 were not sufficient to limit intestinal colonization of V. cholerae O1 when pups were separated from dams following intragastric challenge; however, a significant reduction in bacterial burden was observed when challenged pups remained with dams for continuous breastfeeding. Our findings highlight the potential of mRNA-based mAb platforms in the maternal-newborn context, while acknowledging the need for optimized antibody isotypes, dosing, and tissue-specific delivery to improve mucosal immunity.
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