NIH-funded research R01 grant

The role of gut bacteria and tryptophan in lupus

Official title: Gut dysbiosis and tryptophan metabolism in lupus

Funded at University of Texas Hlth Science Center · NIH-11071398 · Data updated 2026-11-12

This study is looking at how the bacteria in your gut and how your body processes tryptophan might affect lupus, a condition that can cause your immune system to attack itself, by comparing the gut bacteria of people with lupus to those who are healthy, to find out if certain bacteria could be making your symptoms worse.

More Lupus research and trials

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionUniversity of Texas Hlth Science Center
NIH-funded
Lab location1 site (San Antonio, United States)
Project startJanuary 19, 2019
Project endDecember 31, 2029
Funding year2025
Award (this year)$529,926
NIH project number2R01AI143313-07
Project IDNIH-11071398 on NIH RePORTER

Who could benefit from this research

Could help

Ideal candidates for this research include individuals diagnosed with systemic lupus erythematosus, particularly those experiencing disease flares.

Less likely to help

Patients with lupus who are in remission or those without a diagnosis of systemic lupus erythematosus may not benefit from this research.

What this research studies

This research investigates how changes in gut bacteria and tryptophan metabolism may contribute to the development and worsening of lupus, an autoimmune disease. By comparing gut microbial communities in patients with systemic lupus erythematosus (SLE) and healthy individuals, the study aims to identify specific bacteria that may trigger immune responses leading to disease flares. The research utilizes both patient samples and mouse models to explore the relationship between gut health and lupus activity, focusing on how certain gut bacteria can influence immune system behavior.

Why it matters

Potential benefit: If successful, this research could lead to new therapeutic strategies targeting gut bacteria to improve outcomes for lupus patients.

How similar studies have gone: Previous research has indicated that gut microbiota can influence autoimmune diseases, suggesting that this approach may yield valuable insights.

Where this research is happening

  • University of Texas Hlth Science Center
    San Antonio, United States
    Active

Researchers

  • Principal investigator: Morel, Laurence — University of Texas Hlth Science Center
  • Study coordinator: Morel, Laurence

Related research

Other NIH-funded projects on the same topics.

  • Gut bacteria and tryptophan's role in lupus

    This project looks at how changes in gut bacteria and tryptophan metabolism may drive immune activity in people with systemic lupus.

    NIH research University of Texas Hlth Science Center · San Antonio, United States · NIH-11238996

  • Investigating how gut bacteria affect inflammation in lupus patients

    This study is looking at how changes in gut bacteria might make lupus, especially lupus nephritis, worse, and it's for people with lupus who want to understand how their gut health could affect their condition.

    NIH research New York University School of Medicine · New York, United States · NIH-10991804

  • Understanding how DIS3L2 helps keep RNA in check to help lupus patients

    A physician-scientist team is studying how a watchdog molecule for RNA (DIS3L2) may drive lupus-related immune problems, with the goal of uncovering new paths to treatment.

    NIH research Oklahoma Medical Research Foundation · Oklahoma City, United States · NIH-11630879

  • Microbial Dysbiosis and Its Role in Pancreatic Cancer

    A doctor-researcher team at Northwestern University is studying how gut bacteria influence pancreatic cancer and its response to immunotherapy to find new ways to help patients.

    NIH research Northwestern University · Chicago, United States · NIH-11624054

  • From Symbiosis to Dysbiosis: How Resolving Inflammation Could Restore Your Mouth’s Balance

    This grant explores how turning off the harmful inflammation in periodontitis and promoting natural healing could help restore the mouth’s healthy balance.

    NIH research Ada Forsyth Institute, INC. · Somerville, UNITED STATES · NIH-11621747

  • Pathogenic T cells in discoid lupus erythematosus

    A doctor-scientist at Yale is studying why certain immune T cells cause skin damage in discoid lupus, with the goal of finding ways to reduce scarring and improve health for patients, especially African American women.

    NIH research Yale University · New Haven, United States · NIH-11607165

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.
Last reviewed 2026-11-14 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.