Immune cells beside retinal blood vessels and their role in eye inflammation

Retinal perivascular macrophages: ontology and function during neuroinflammation

NIH-funded research Northwestern University · NIH-11249593

Researchers will learn how immune cells that sit next to blood vessels in the retina influence inflammation in conditions like diabetic retinopathy and uveitis.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionNorthwestern University NIH-funded
Lab location1 site (Chicago, United States)
Project IDNIH-11249593 on NIH RePORTER

What this research studies

This lab-based project uses mouse models and genetic labeling to trace where retinal perivascular macrophages come from and how long they live. The team will selectively remove these cells and watch how that changes entry of other immune cells into the retina after inflammatory triggers. They will also examine the genes these macrophages express to see if they signal for monocytes, neutrophils, or lymphocytes to come into the eye. Findings aim to explain how these vessel-associated immune cells shape retinal inflammation.

Who could benefit from this research

Good fit: People with inflammatory retinal conditions such as diabetic retinopathy or posterior uveitis are the patient groups most likely to benefit from this research, though the project does not enroll patients.

Not a fit: Patients seeking immediate treatments or those without retinal inflammatory disease are unlikely to receive direct benefit from this lab-based study.

Why it matters

Potential benefit: If successful, the work could reveal new targets to limit harmful immune cell entry into the retina and help prevent vision loss from inflammatory retinal diseases.

How similar studies have performed: Related studies in the brain show perivascular macrophages can control barrier permeability, but applying these findings specifically to the retina is a relatively new and understudied approach.

Where this research is happening

Chicago, 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.