LL-37: The Human Body's Only Cathelicidin and a Multifunctional Defense Peptide for Infection, Inflammation, and Tissue Repair
LL-37 is the sole cathelicidin antimicrobial peptide produced by the human body, functioning simultaneously as a broad-spectrum pathogen killer, immune system modulator, and tissue regeneration signal that becomes critically relevant in the era of antibiotic-resistant infection.