Understanding how natural immunity changes with age in men and women

The Role of Biological Sex in the Self-renewal of B1 Cells into Old Age in Mice and Humans

NIH-funded research Western Michigan Univ School of Medicine · NIH-11192909

This project looks at how our natural defenses, called B1 cells, stay strong or weaken as we get older, especially noticing differences between men and women.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionWestern Michigan Univ School of Medicine NIH-funded
Lab location1 site (Kalamazoo, United States)
Project IDNIH-11192909 on NIH RePORTER

What this research studies

As we age, our immune system can become less effective, making us more vulnerable to illness. This project explores how a specific type of immune cell, called B1 cells, changes over time, particularly focusing on why natural antibodies might protect older women better than older men. Researchers will investigate these differences to understand how our bodies maintain protection against diseases as we age. The goal is to uncover the biological reasons behind these changes, which could lead to new ways to keep older adults healthier.

Who could benefit from this research

Good fit: This research is relevant to older adults, particularly those interested in how their immune system changes with age and how biological sex might play a role.

Not a fit: Patients seeking immediate treatment for an existing condition may not directly benefit from this foundational biological research.

Why it matters

Potential benefit: If successful, this work could lead to new strategies for preventing infections and diseases in older adults by boosting their natural immune responses.

How similar studies have performed: While the general concept of age-related immune decline is known, this specific focus on B1 cell self-renewal and sex differences in natural antibody protection represents a novel area of investigation.

Where this research is happening

Kalamazoo, United States

Researchers

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 below.
Last reviewed 2026-06-13 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.