How surrounding non-cancer cells help prostate cancer grow

Deciphering Mechanisms of Tumor-Stromal Interactions in Prostate Cancer

['FUNDING_R01'] · WASHINGTON STATE UNIVERSITY · NIH-11067819

Researchers are testing whether blocking a protein called MAOB in the non-cancer cells around prostate tumors can slow prostate cancer growth and progression.

Quick facts

Phase['FUNDING_R01']
Study typeNih_funding
SexAll
SponsorWASHINGTON STATE UNIVERSITY (nih funded)
Locations1 site (PULLMAN, UNITED STATES)
Trial IDNIH-11067819 on ClinicalTrials.gov

What this research studies

This work focuses on the tumor microenvironment—the non-cancerous stromal cells that surround prostate tumors—and how they support cancer growth. Scientists found that a mitochondrial enzyme called MAOB is much higher in these stromal cells from patients and mouse models, and increases as disease becomes treatment-resistant. They will use patient tumor samples, primary cell cultures, and animal models to study how stromal MAOB supports tumors and to search for druggable targets that interrupt tumor-stromal communication. The project also draws on population data suggesting men taking MAOB inhibitors for other reasons seem to have lower prostate cancer rates.

Who could benefit from this research

Good fit: Men with prostate cancer—including those with advanced or treatment-resistant disease—who can provide tissue samples or participate through treating hospitals are the most relevant candidates.

Not a fit: People without prostate cancer or those unable to provide tissue samples or join participating clinical sites are unlikely to benefit directly from this work.

Why it matters

Potential benefit: If successful, this could lead to new therapies that target supportive stromal cells to slow tumor growth and reduce treatment resistance.

How similar studies have performed: Preclinical lab and animal studies plus epidemiological observations suggest MAOB-targeting and stromal-directed approaches can affect tumor behavior, but clinical proof in patients is still limited.

Where this research is happening

PULLMAN, 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.