NIH-funded research R21 grant

How gut bacteria affect immune responses to malaria vaccines

Official title: Effect of gut microbiota composition on malaria vaccine-induced immune responses

Funded at Indiana University Indianapolis · NIH-11124081 · Data updated 2026-11-12

This study is looking at how the bacteria in our gut might affect how well malaria vaccines work, especially for people in Africa, by using mice that have similar gut bacteria to those found in that region.

Quick facts

Grant typeR21 grant
Study typeNIH-funded research
Funding institutionIndiana University Indianapolis
NIH-funded
Lab location1 site (Indianapolis, United States)
Project startJune 24, 2024
Project endApril 30, 2026
Funding year2025
Award (this year)$194,728
NIH project number5R21AI186331-02
Project IDNIH-11124081 on NIH RePORTER

Who could benefit from this research

Could help

Ideal candidates for this research are individuals living in Africa who are at risk of malaria and may benefit from improved vaccine responses.

Less likely to help

Patients who do not reside in regions where malaria is prevalent or who are not eligible for vaccination may not receive benefits from this research.

What this research studies

This research investigates the role of gut microbiota in shaping immune responses to malaria vaccines. By using a controlled mouse model that mimics the gut microbiome of individuals in Africa, the study aims to understand how different gut bacteria can influence the effectiveness of malaria vaccines. The researchers will explore how these microbial communities interact with the immune system and potentially enhance vaccine efficacy. This approach is crucial as current vaccine trials often do not account for the differences in gut microbiota between populations.

Why it matters

Potential benefit: If successful, this research could lead to more effective malaria vaccines tailored to the gut microbiome of specific populations.

How similar studies have gone: Previous studies have shown that gut microbiota can influence vaccine responses, suggesting that this research builds on established findings while exploring a novel application.

Where this research is happening

  • Indiana University Indianapolis
    Indianapolis, United States
    Active

Researchers

  • Principal investigator: Schmidt, Nathan — Indiana University Indianapolis
  • Study coordinator: Schmidt, Nathan

Related research

Other NIH-funded projects on the same topics.

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  • The role of gut bacteria in malaria infections

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  • How mosquito gut bacteria affect egg production and malaria infection

    This study looks at how the tiny bacteria in the stomachs of female mosquitoes affect their ability to lay eggs and how malaria parasites grow inside them, which could help us find new ways to control malaria by focusing on the mosquitoes' breeding habits.

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  • Gut microbiome and Parkinson's disease: how gut bugs relate to symptoms and progression

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  • Gut-Brain Axis in Parkinson’s Disease: biomarkers and procedures to track progression

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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.
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.