Susceptibility of a minipig kidney cell line (MPK) to hog cholera virus

Area of Science:

• Veterinary Virology
• Cell Biology
• Infectious Diseases

Background:

• Hog Cholera Virus (HCV) causes significant economic losses in swine populations worldwide.
• Understanding differential cell line susceptibility is crucial for virological studies and vaccine development.
• Minipig Kidney (MPK) and Pig Kidney (PK15) cell lines are commonly used in swine virus research.

Purpose of the Study:

• To comparatively assess the susceptibility of MPK and PK15 cell lines to Hog Cholera Virus (HCV).
• To quantify viral replication efficiency in two distinct porcine kidney cell lines.

Main Methods:

• Inoculation of MPK and PK15 cell cultures with a standardized dose of Hog Cholera Virus (HCV).
• Quantification of viral titers using established methods (e.g., plaque assays or quantitative PCR) at specific time points post-infection.
• Comparative analysis of viral load between the two cell lines.

Main Results:

• MPK cells demonstrated significantly higher susceptibility to HCV infection compared to PK15 cells.
• HCV reached a 3 log10 higher titer in MPK cells than in PK15 cells.
• This indicates enhanced viral replication and/or reduced viral clearance in MPK cells.

Conclusions:

• MPK cells are a more permissive host system for Hog Cholera Virus (HCV) replication in vitro.
• The findings suggest distinct cellular mechanisms governing HCV susceptibility between MPK and PK15 cell lines.
• MPK cells may be a preferred model for studying HCV pathogenesis and for antiviral screening.