How brain support structures affect nerve-cell connections in people with the APOE4 Alzheimer's risk gene
ECM regulation and neuronal plasticity in mice harboring a common risk allele for Alzheimer's
['FUNDING_R01'] · GEORGETOWN UNIVERSITY · NIH-11260170
Researchers are testing whether changes in the brain's extracellular matrix explain weaker nerve-cell wiring and memory problems linked to the APOE4 Alzheimer's risk gene.
Quick facts
| Phase | ['FUNDING_R01'] |
|---|---|
| Study type | Nih_funding |
| Sex | All |
| Sponsor | GEORGETOWN UNIVERSITY (nih funded) |
| Locations | 1 site (WASHINGTON, UNITED STATES) |
| Trial ID | NIH-11260170 on ClinicalTrials.gov |
What this research studies
This project uses mice engineered to carry the human APOE4 risk gene to look at how the brain's extracellular matrix and perineuronal nets affect neuronal branching, activity patterns, and memory-related replay events. Scientists measure dendritic complexity, sharp wave ripples (brain events tied to memory consolidation), and behavior in these mice, and manipulate ECM components to see if plasticity and memory signals can be restored. The work links molecular and circuit-level changes to the higher risk for cognitive decline seen with APOE4 and may identify specific ECM features that drive vulnerability. Findings are preclinical but are framed to suggest targets for future human-focused studies or therapies.
Who could benefit from this research
Good fit: People who carry the APOE-ε4 (APOE4) genetic variant or who are at increased risk for Alzheimer's disease would be the most relevant candidates for future human studies informed by this work.
Not a fit: People without the APOE4 risk variant or those with advanced Alzheimer's disease are less likely to receive direct benefit from these preclinical findings in the near term.
Why it matters
Potential benefit: If successful, the work may point to new targets to protect nerve-cell connections and slow memory decline in people who carry the APOE4 genetic variant.
How similar studies have performed: Prior animal studies have linked APOE4 to reduced neuronal plasticity and shown that altering extracellular matrix components can restore plasticity, but translating those approaches into human treatments remains unproven.
Where this research is happening
WASHINGTON, UNITED STATES
- GEORGETOWN UNIVERSITY — WASHINGTON, UNITED STATES (ACTIVE)
Researchers
- Principal investigator: CONANT, KATHERINE E — GEORGETOWN UNIVERSITY
- Study coordinator: CONANT, KATHERINE E
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.