Overview on the recent study of antimicrobial peptides: Origins, functions, relative mechanisms and application

► Antimicrobial peptides (AMPs) produced by several species including insects, other animals, micro organisms and synthesis, are a critical component of the natural defense system. ► With the growing problem of pathogenic organisms resistant to conventional antibiotics, especially with the emergence of NDM-1, there is increased interest in the pharmacological application of AMPs. ► They can protect against a broad array of infectious agents, such as bacteria, fungi, parasite, virus and cancer cells. ► AMPs have a good future in the application in pharmaceuticals industry and food additive.