How breastmilk antibodies help newborns' immune systems manage gut bacteria
Breastmilk antibodies regulate neonatal immunity to the microbiota
This work looks at whether antibodies in breastmilk help newborns' immune systems tolerate helpful gut bacteria and avoid inflammation.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Fred Hutchinson Cancer Center NIH-funded |
| Lab location | 1 site (Seattle, United States) |
| Project ID | NIH-11262252 on NIH RePORTER |
What this research studies
Your baby's early immune balance with gut bacteria may be shaped by antibodies they get through breastmilk. The team will identify which antibody types in milk bind specific gut microbes and test how those antibodies prevent the baby's immune cells from overreacting, including roles for complement and Fc receptors. They will combine laboratory models with analyses of breastmilk antibodies and immune signaling to link molecular mechanisms to gut inflammation outcomes. Findings will be compared to human-relevant samples to make the results meaningful for infant health.
Who could benefit from this research
Good fit: Ideal candidates would be breastfeeding mothers and their newborn infants, especially those concerned about or at risk for early-life gut inflammation.
Not a fit: Adults not exposed to breastmilk or people with gut problems unrelated to newborn immune development are unlikely to receive direct benefit.
Why it matters
Potential benefit: If successful, this could suggest ways to reduce newborn gut inflammation, guide breastfeeding recommendations, or inspire antibody-based approaches to protect infants.
How similar studies have performed: Previous studies show breastmilk antibodies such as IgA can protect infants from gut inflammation, and this project builds on newer evidence about milk-transferred IgG while testing mechanisms that are still not well established.
Where this research is happening
Seattle, United States
- Fred Hutchinson Cancer Center — Seattle, United States (Active)
Researchers
- Principal investigator: Koch, Meghan Anne — Fred Hutchinson Cancer Center
- Study coordinator: Koch, Meghan Anne
About this research
- This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
- Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
- For full project details, budget, and progress reports, visit the official NIH RePORTER page below.