Generation of monoclonal antibodies against PBP2a to improve diagnosis and potential treatment of MRSA infections

Abstract

Background: MRSA is a type of MDR bacterium. All around the world, it leads to significant nosocomial and community-acquired diseases. The discovery of fresh ideas is very important because there are so few effective treatments for MRSA infections. PBP2a is a great candidate for the development of MRSA-specific Mabs. Aim: The purpose of this study was to create murine Mabs against PBP2a in order to enhance MRSA laboratory detection and possibly treatment. Methods: Anti-PBP2a MAb was tested for biodistribution, therapeutic, and preventative effects in comparison to vancomycin. After receiving anti-PBP2a MAb therapy, biodistribution was assessed between 12 and 96 hours later. Results: During the observation timepoints, the majority of the generated MAb stayed in the serum and just a tiny fraction was found in the kidneys, lungs, and spleen. A prophylactic experiment in mice given the lethal dosage 50 (LD50) found that treated animals with anti-PBP2a MAb had a greater survival rate than the control group. In a therapeutic experiment, one dosage of anti-PBP2a MAb reduced bacterial load in the kidneys similarly to the group treated with five doses of vancomycin, and a combination therapy with anti-PBP2a MAb and vancomycin was more effective than either drug used alone. Conclusion: The findings of this study suggested that an anti-PBP2a MAb may be extremely useful in the creation of innovative diagnostic tools and promising treatments for preventative and therapeutic measures against MRSA infections.