How a Body Protein Affects Antibiotics in Infections

Calprotectin and Antibiotic Activities at the Infection Interface

['FUNDING_R01'] · UNIV OF NORTH CAROLINA CHAPEL HILL · NIH-11143214

This work explores how a natural protein in our immune cells might weaken common antibiotics, aiming to improve how we treat infections.

Quick facts

Phase['FUNDING_R01']
Study typeNih_funding
SexAll
SponsorUNIV OF NORTH CAROLINA CHAPEL HILL (nih funded)
Locations1 site (CHAPEL HILL, UNITED STATES)
Trial IDNIH-11143214 on ClinicalTrials.gov

What this research studies

Our bodies have a protein called calprotectin, found in immune cells, which surprisingly can break down important antibiotics like ampicillin and amoxicillin. This project aims to understand how calprotectin's ability to inactivate these antibiotics affects their effectiveness against bacterial infections. Researchers will study this process in laboratory settings and in mice with infections. The goal is to see if blocking calprotectin's action could make antibiotics work better, potentially leading to more successful treatments.

Who could benefit from this research

Good fit: Patients who experience bacterial infections treated with penicillin-class antibiotics, particularly those with antibiotic resistance concerns, could potentially benefit from future developments stemming from this work.

Not a fit: Patients whose infections are not treated with penicillin-class antibiotics or those without issues related to antibiotic resistance may not directly benefit from this specific line of inquiry.

Why it matters

Potential benefit: If successful, this work could lead to new ways to make existing antibiotics more effective against common infections, especially for patients where these antibiotics currently fail.

How similar studies have performed: The discovery that a host protein can inactivate antibiotics is novel, though the use of β-lactamase inhibitors to improve antibiotic efficacy is a known strategy.

Where this research is happening

CHAPEL HILL, 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.