How brain immune cells (microglia) affect development in Down syndrome

Microglial contribution to Down Syndrome Neuropathology

NIH-funded research University of California, San Diego · NIH-11257718

This research explores whether brain immune cells called microglia act differently in children and young adults with Down syndrome and how that might affect thinking and development.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionUniversity of California, San Diego NIH-funded
Lab location1 site (La Jolla, United States)
Project IDNIH-11257718 on NIH RePORTER

What this research studies

Researchers will grow mini human brain tissues (organoids) that include microglia and use a special mouse model in which most microglia are human to study changes caused by the extra chromosome 21. They will measure gene activity and chromatin accessibility in microglia using sequencing methods and link those molecular changes to cell function and behavior in the models. The team will test whether correcting microglial dysfunction can improve neuronal development in these laboratory and mouse systems.

Who could benefit from this research

Good fit: Ideal candidates are children and young adults with Down syndrome or families willing to provide biological samples for research at the study site.

Not a fit: People without Down syndrome or those seeking an immediate clinical therapy are unlikely to receive direct benefit from this laboratory-focused work.

Why it matters

Potential benefit: If successful, this work could point to new targets for therapies that improve brain development and cognitive outcomes in people with Down syndrome.

How similar studies have performed: Prior studies have linked microglia to brain development and to other neurological conditions, but applying humanized microglia organoids and chimeric mouse models to Down syndrome is relatively new.

Where this research is happening

La Jolla, 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 2026-06-09 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.