Mouth bacteria that may speed up oral cancer

Oral Pathogen-triggered Progression of Oral Squamous Cell Carcinoma

NIH-funded research Oklahoma State University Stillwater · NIH-11335589

This work looks at whether specific mouth bacteria help oral squamous cell carcinoma grow and spread in people who have or are at risk for oral cancer.

Quick facts

Grant typeNIH-funded research
Study typeNIH-funded research
Funding institutionOklahoma State University Stillwater NIH-funded
Lab location1 site (Stillwater, United States)
Project IDNIH-11335589 on NIH RePORTER

What this research studies

Researchers will compare the mouth bacteria of people with oral squamous cell carcinoma (OSCC) to those without cancer to find microbes linked to worse disease. In the lab they will test bacterial strains, including Prevotella intermedia, on human oral cancer cells and study bacterial proteins like Interpain A (InpA) that may change cell growth and movement. They will explore how InpA might work by activating the human receptor PAR2 and use these findings to look for biomarkers or targets to slow cancer progression. The work combines human sample comparisons and laboratory experiments rather than testing new drugs in patients.

Who could benefit from this research

Good fit: People diagnosed with oral squamous cell carcinoma or those at higher risk due to tobacco or alcohol use, HPV infection, or poor oral hygiene would be the most relevant candidates for related patient studies.

Not a fit: People with cancers unrelated to the mouth or conditions not linked to the oral microbiome are unlikely to benefit directly from this work.

Why it matters

Potential benefit: If successful, this research could reveal bacterial targets or biomarkers that help prevent or slow progression of oral cancer and guide new treatments or oral-health strategies.

How similar studies have performed: Earlier studies have linked a few bacteria (Porphyromonas gingivalis and Fusobacterium nucleatum) to oral cancer and recent work suggesting Prevotella intermedia plays a role is promising but still preliminary.

Where this research is happening

Stillwater, 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.