How AHR and NLRP6 affect the gut lining in colitis

AHR-NLRP6 interactions in gut barrier dysfunction and colitis

['FUNDING_R01'] · UNIVERSITY OF LOUISVILLE · NIH-11401873

This work explores whether a gut microbe–derived compound called Urolithin A can strengthen the intestinal barrier and help people with inflammatory bowel disease like Crohn’s and ulcerative colitis.

Quick facts

Phase['FUNDING_R01']
Study typeNih_funding
SexAll
SponsorUNIVERSITY OF LOUISVILLE (nih funded)
Locations1 site (LOUISVILLE, UNITED STATES)
Trial IDNIH-11401873 on ClinicalTrials.gov

What this research studies

As someone with IBD, this project focuses on how a natural compound (Urolithin A) interacts with gut cell sensors called AHR and NLRP6 to protect the intestinal lining. Researchers will use lab-grown intestinal cells and animal models of colitis to follow the AHR–NLRP6–IL-18 pathway and the downstream IL-22 signals from immune cells. They will study how these signals promote goblet cell differentiation and mucin production that form the mucus barrier. The aim is to identify steps that could be targeted to restore barrier function and reduce inflammation in people with Crohn’s disease or ulcerative colitis.

Who could benefit from this research

Good fit: People with inflammatory bowel disease (ulcerative colitis or Crohn’s disease), especially those with active gut barrier problems, would be the most relevant candidates for future therapies from this work.

Not a fit: People without inflammatory bowel disease or whose symptoms are caused by unrelated conditions are unlikely to benefit from this specific research.

Why it matters

Potential benefit: If successful, this work could lead to new treatments that strengthen the intestinal lining and reduce flares in people with Crohn’s disease and ulcerative colitis.

How similar studies have performed: Prior laboratory and animal studies showed that Urolithin A can improve gut barrier function and lessen colitis, but human clinical testing of this approach remains limited.

Where this research is happening

LOUISVILLE, 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.

View on NIH RePORTER →

Last reviewed 2026-05-15 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.