Acta Veterinaria et Zootechnica Sinica ›› 2025, Vol. 56 ›› Issue (9): 4294-4302.doi: 10.11843/j.issn.0366-6964.2025.09.014

• Review • Previous Articles     Next Articles

Research Progress on the Mechanism of Host Defense Peptides against Microorganisms

PAN Yandi(), ZHANG Tingting, FANG Rendong, PENG Lianci*()   

  1. College of Veterinary Medicine, Southwest University, Chongqing 400715, China
  • Received:2024-11-18 Online:2025-09-23 Published:2025-09-30
  • Contact: PENG Lianci E-mail:pydi123@163.com;penglianci@swu.edu.cn

Abstract:

Host defense peptides (HDPs), as antimicrobial peptides (AMPs), are an important component of innate immunity and can protect the host against pathogens invasion. HDPs have broad-spectrum antimicrobial activity and are less susceptible to the production to drug resistance, which are potential candidates for the development of new anti-infectives. The antibacterial mechanism of action of HDPs is complicated, which not only acts on cell wall and membrane, but also affects the synthesis of nucleic acid, protein and metabolism. This article reviews the mechanism of action of HDPs on pathogens including bacteria, fungi, viruses, and parasites, which provides reference for the application of HDPs.

Key words: host defense peptides, microorganisms, the mechanism of action

CLC Number: