Cytokine gene expression and pathology in experimental Pasteurella multocida infection in mice

P KRISHNAMOORTHY; SANGITA DAS; B R SHOME; PARIMAL ROY

doi:10.56093/ijans.v87i11.75823

Authors

P KRISHNAMOORTHY ICAR-NIVEDI, Yelahanka, Bengaluru, Karnataka 560 064 India
SANGITA DAS ICAR-NIVEDI, Yelahanka, Bengaluru, Karnataka 560 064 India
B R SHOME ICAR-NIVEDI, Yelahanka, Bengaluru, Karnataka 560 064 India
PARIMAL ROY ICAR-NIVEDI, Yelahanka, Bengaluru, Karnataka 560 064 India

https://doi.org/10.56093/ijans.v87i11.75823

Keywords:

Cytokine gene expression, Mice, Pasteurella multocida, Pathology

Abstract

The study was conducted to know the pathology and cytokine gene expression studies in experimental infection with Pasteurella multocida in mice. Swiss albino mice (20) were inoculated with P. multocida (200 μl of 1 × 10⁸ cfu/ml) and control mice with sterile PBS intraperitoneally and sacrificed 4 mice at 6, 12, 18 and 24 h. Mice showed dullness, lethargy and unable to move at 18 and 24 h after inoculation. Histopathology revealed changes in liver, kidney, spleen, lung and no observable changes in heart and abdominal muscles. Liver showed septicemia condition and acute bronchopneumonia of lung at 24 h. TNF-α gene showed 20-fold increase in liver and spleen and 5-folds in kidney. There was upregulation of pro-inflammatory cytokines in liver, kidney, spleen and IL–10 gene at later periods of infection which is a new finding, needs further study. Thus, the present study indicated that increase in tissue cytokine gene expression concurred with histopathological changes were attributed to the pathogenesis of Pasteurellosis in mice.

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