Defensin HNP-1 human TFA is a type of human neutrophil peptide (HNPs). Defensin HNP-1 human TFA possesses immunomodulatory functions and can delay the apoptosis of neutrophils. Defensin HNP-1 human TFA inhibits DNA/RNA/protein synthesis and interferes with metabolic pathways, thus exhibiting broad antibacterial activity. Defensin HNP-1 human TFA has direct inactivation effects on HIV, HSV-1, HSV-2, CMV, influenza virus, etc. Defensin HNP-1 human TFA has antileishmanial activity. Defensin HNP-1 human TFA is involved in endothelial cell dysfunction during the early development of atherosclerosis[1][2][3].