Article (Scientific journals)
Host-Strain-Specific Responses to Pneumonia Virus of Mice Infection: A Study of Lesions, Viral Load, and Cytokine Expression.
Levy, Etienne; Gilliaux, Gautier; Sarlet, Michaël et al.
2025In Viruses, 17 (4), p. 548
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Keywords :
cytokine; mouse line; pneumonia virus of mice; respiratory syncytial virus; Cytokines; Animals; Mice; Disease Models, Animal; Lung/virology; Lung/pathology; Mice, Inbred BALB C; Female; Longitudinal Studies; Viral Load; Cytokines/genetics; Cytokines/metabolism; Cytokines/immunology; Murine pneumonia virus/pathogenicity; Murine pneumonia virus/immunology; Murine pneumonia virus/physiology; Pneumovirus Infections/virology; Pneumovirus Infections/pathology; Pneumovirus Infections/immunology; Host-Pathogen Interactions; Lung; Murine pneumonia virus; Pneumovirus Infections; Infectious Diseases; Virology
Abstract :
[en] Pneumonia virus of mice (PVM) infection is a reference animal model for human respiratory syncytial virus (hRSV), a leading cause of lower respiratory tract disease in children under 5 years of age and in the elderly. This longitudinal study employed necropsy to examine macroscopic lesions, histological slides to assess microscopic lesions, and qRT-PCR to measure lung viral load and cytokine expression in PVM-infected mice from three different genetic backgrounds, spanning from day 1 to day 6 post-infection. Our analysis reveals a strong correlation between viral load and microscopic lesions across the 129/Sv, BALB/c, and SJL/J mouse lines, indicating that PVM pathogenicity is partially driven by the virus itself. Additionally, a significant correlation between cytokine levels and lesion severity was observed in 129/Sv and BALB/c mice, suggesting an important role of cytokines in disease progression. This study emphasizes the interplay between viral load and cytokine-driven tissue damage, with genetic background significantly influencing disease outcomes.
Disciplines :
Cardiovascular & respiratory systems
Author, co-author :
Levy, Etienne  ;  Université de Liège - ULiège > Fundamental and Applied Research for Animals and Health (FARAH)
Gilliaux, Gautier  ;  Université de Liège - ULiège > Fundamental and Applied Research for Animals and Health (FARAH) > FARAH: Santé publique vétérinaire
Sarlet, Michaël ;  Université de Liège - ULiège > Département de morphologie et pathologie (DMP)
Desmecht, Daniel  ;  Université de Liège - ULiège > Département de morphologie et pathologie (DMP) > Pathologie spéciale et autopsies
Van Laere, Anne-Sophie  ;  Université de Liège - ULiège > Département de morphologie et pathologie (DMP) > Pathologie spéciale et autopsies
Language :
English
Title :
Host-Strain-Specific Responses to Pneumonia Virus of Mice Infection: A Study of Lesions, Viral Load, and Cytokine Expression.
Publication date :
09 April 2025
Journal title :
Viruses
eISSN :
1999-4915
Publisher :
MDPI, Switzerland
Volume :
17
Issue :
4
Pages :
548
Peer reviewed :
Peer Reviewed verified by ORBi
Funding text :
This research was funded by the University of Li\u00E8ge.
Available on ORBi :
since 20 May 2025

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