NIH-funded research R21 grant

Investigating how a protein in breast milk affects immune tolerance in infants

Official title: Milk Butryophilin and Immune Tolerence

Funded at Yale University · NIH-11083041 · Data updated 2026-11-12

This study is looking at how a protein in breast milk called BTN1A1 helps babies' immune systems work better, which might protect them from allergies and autoimmune diseases as they grow up.

Quick facts

Grant typeR21 grant
Study typeNIH-funded research
Funding institutionYale University
NIH-funded
Lab location1 site (New Haven, United States)
Project startMay 2, 2024
Project endApril 30, 2026
Funding year2025
Award (this year)$209,375
NIH project number5R21HD111764-02
Project IDNIH-11083041 on NIH RePORTER

Who could benefit from this research

Could help

Ideal candidates for this research are infants under 11 years old, particularly those at risk for allergic or autoimmune conditions.

Less likely to help

Patients who are older than 11 years or those who are not breastfed may not receive direct benefits from this research.

What this research studies

This research explores the role of butyrophilin (BTN1A1), a protein found in breast milk, in shaping the immune system of infants. It aims to understand how BTN1A1 influences T cell activation and tolerance, potentially protecting against allergic and autoimmune diseases. The study will involve testing the effects of BTN1A1 on T cell responses in neonatal models, with a focus on how these effects may persist beyond weaning. By examining these mechanisms, the research seeks to uncover how breastfeeding can provide lasting immune benefits to children.

Why it matters

Potential benefit: If successful, this research could lead to new strategies for preventing allergic diseases in children through enhanced understanding of breast milk's immune properties.

How similar studies have gone: Previous studies have shown that components in breast milk can influence immune development, suggesting that this research builds on established findings in the field.

Where this research is happening

  • Yale University
    New Haven, United States
    Active

Researchers

  • Principal investigator: Wysolmerski, John J — Yale University
  • Study coordinator: Wysolmerski, John J

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page.
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Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.