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Agriculture

Novel Antimicrobial Agents Sought in Poultry Farming Amidst Antimicrobial Resistance Spread

Strategic Insights

— 2 min read

As the poultry industry grapples with the challenge of maintaining high production performance while preserving enteral homeostasis in animals constantly exposed to enteral pathogens, researchers are searching for novel antimicrobial agents. A recent study, funded by the National Research, Development & Innovation Office (NRDIO) - Hungary and the Ministry of Culture and Innovation of Hungary, has identified a potential antibiotic substitute in the form of host defense peptides (HDP), specifically the peptide Pap12-6 (PAP). The study, conducted at the University of Veterinary Medicine, found that PAP displayed immunomodulatory effects and may have contributed to epithelial integrity without being cytotoxic.

Key Takeaways:

  • Researchers have identified a potential antibiotic substitute in the form of host defense peptides (HDP), specifically the peptide Pap12-6 (PAP), in the context of poultry farming.
  • The study, funded by the National Research, Development & Innovation Office (NRDIO) - Hungary and the Ministry of Culture and Innovation of Hungary, found that PAP did not influence metabolic activity and extracellular lactate dehydrogenase activity, suggesting its potential as a non-toxic agent.
  • The researchers observed that PAP increased the expression of occludin and the abundance of claudin-3, indicating its potential to contribute to epithelial integrity.
  • The study suggests that further research is needed to elucidate the detailed mechanism of action and concentration-dependent activity of PAP.
  • The authors of the study include Rege Anna Marton, Patrik Traj, Mate Mackei, Csilla Sebok, Julia Voroshazi, Agnes Kemeny, Evelin Kaman-Toth, Zsuzsanna Neogrady, Gabor Matis, Viviana Molnar-Nagy, and David Geza Horvath from the University of Veterinary Medicine.
  • The study was funded by the National Recovery Fund budget estimate, RRF-2.3.1-21, under the Recovery and Resilience Facility (RRF).

Statistics:

  • The study involved the application of Pap12-6 (PAP) at concentrations of 25 and 50 μg/ml in chicken ileal explant cultures.
  • The research found that PAP increased the level of interleukin (IL)-2, raised IL-8 concentration in some treatments, and decreased elevated interferon (IFN)-gamma production.
  • The study observed that PAP had a concentration-dependent effect on the expression of TJ proteins, with PAP-low elevating occludin and PAP-high increasing the abundance of claudin-3.

Sources:

  • NewsRx. Researchers from University of Veterinary Medicine Report on Findings in Poultry Farming (Exploring the Impact of the Host Defense Peptide Pap12-6 On Immune Response and Epithelial Integrity In Chicken-derived Ileal Explant Cultures). Agriculture Week. August 7, 2025; p 460.
  • Exploring the Impact of the Host Defense Peptide Pap12-6 On Immune Response and Epithelial Integrity In Chicken-derived Ileal Explant Cultures. Poultry Science, 2025;104(8).

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