Article Dans Une Revue Veterinary Research Année : 2025

The inactivated and ISA 61 VG adjuvanted vaccine enhances protection against cross-serotype Listeria monocytogenes

Fanzeng Meng
  • Fonction : Auteur
Ye Wang
  • Fonction : Auteur
Chao Chen
  • Fonction : Auteur
Tianxiang Pan
  • Fonction : Auteur
Jing Li
  • Fonction : Auteur
Yao Xu
  • Fonction : Auteur
Zegang Wang
  • Fonction : Auteur
Hao Yao
  • Fonction : Auteur
Xin’an Jiao
  • Fonction : Auteur
Yuelan Yin
Connectez-vous pour contacter l'auteur

Résumé

AbstractListeriosis is a zoonotic disease caused by Listeria monocytogenes (Lm), posing a significant threat to the breeding industry and public health. Ruminant livestock are particularly susceptible to Lm,  thus effective strategies are needed for controlling ovine listeriosis. In this study, we developed two inactivated vaccines and evaluated their efficacy against Lm infection in murine and ovine models. We inactivated the Lm serotype 4h XYSN strain and adjuvanted it with water-in-oil ISA 61 VG (61 VG-AIV) or aluminum (Al-AIV). Pathological observations confirmed the safety of both vaccines in mice and sheep. The immunological assays demonstrated that, compared with the Al-AIV, the 61 VG-AIV induced higher levels of Lm-specific antibodies and proinflammatory cytokines, suggesting that the ISA 61 VG adjuvant has superior immunostimulatory effects compared with the alum adjuvant. 61 VG-AIV elicited greater immunoprotection than Al-AIV (83.4% vs. 50%) against serotype 4h Lm strain challenge in mice. Additionally, 61 VG-AIV afforded cross-protection against challenges with serotypes 1/2a, 1/2b, and 4b Lm strains. Importantly, high immunoprotection in sheep was conferred by the 61 VG-AIV group (83.4%). Taken together, our findings demonstrate that the ISA 61 VG adjuvant contributes to enhancing the humoral and cellular immune responses of inactivated Lm, and 61 VG-AIV is a promising vaccine candidate for the prevention and control of animal listeriosis. This research lays a solid foundation for its application in veterinary medicine.

Fichier principal
Vignette du fichier
13567_2025_Article_1483.pdf (3.72 Mo) Télécharger le fichier
Origine Publication financée par une institution
Licence

Dates et versions

hal-05002513 , version 1 (24-03-2025)

Licence

Identifiants

Citer

Fanzeng Meng, Ye Wang, Chao Chen, Tianxiang Pan, Jing Li, et al.. The inactivated and ISA 61 VG adjuvanted vaccine enhances protection against cross-serotype Listeria monocytogenes. Veterinary Research, 2025, 56 (1), pp.60. ⟨10.1186/s13567-025-01483-2⟩. ⟨hal-05002513⟩

Collections

79 Consultations
130 Téléchargements

Altmetric

Partager

  • More