Human Cells Produce Natural Antibiotic Proteins

Human cells create a sophisticated soap-like protein that specifically destroys bacterial invaders. The protein APOL3 targets and eliminates bacterial membranes while leaving human cells completely unharmed. Scientists discovered this natural defense mechanism in 2024, explaining how non-immune cells fight off infections like Salmonella. This finding opens new possibilities for antibiotic development, which is especially crucial as bacteria increasingly resist conventional drugs.