Related Experiment Videos
[Primary studies on the establishment of cytomegalovirus murine model]
Abstract:
Intraperitoneal inoculation of Murine cytomegalovirus(MCMV) into Balb/C mice at age of 4 weeks resulted in acute MCMV infection of the mice. The infected mice had body weight reduction, growth retardation, salivary gland swelling and death. A lethal dose was 5 x 10(6) PFU/ml of MCMV. Virus could be recovered from salivary gland and the infectivity titer of MCMV reached to a high titer of 2 x 10(5) PFU/ml. Plaque formation of MCMV in 3T3/Swiss albino cells was identified. Histopathological examination showed the appearance of MCMV-specific intracytoplasmic inclusion bodies in neuron cells of the mouse brain.
Insights
Murine cytomegalovirus (MCMV) infection in young mice causes severe illness, including growth reduction and death. Researchers identified a lethal dose and observed MCMV replication and inclusion bodies in the brain.
Area of Science:
- Virology
- Immunology
- Pathology
Context:
- Murine cytomegalovirus (MCMV) is a significant pathogen in mouse models.
- Understanding MCMV pathogenesis is crucial for developing antiviral strategies.
Purpose:
- To characterize the acute effects of MCMV infection in Balb/C mice.
- To determine the lethal dose and viral kinetics of MCMV.
Summary:
- Intraperitoneal inoculation of 4-week-old Balb/C mice with MCMV induced acute infection, characterized by body weight reduction, growth retardation, salivary gland swelling, and mortality.
- A lethal dose of 5 x 10(6) PFU/ml was established, with high viral titers (2 x 10(5) PFU/ml) recovered from salivary glands.
- Histopathological analysis revealed MCMV-specific intracytoplasmic inclusion bodies in mouse brain neurons, indicating neuroinvasion.
Impact:
- This study provides a detailed profile of MCMV-induced disease in a relevant animal model.
- Findings contribute to the understanding of MCMV tropism and neuropathogenesis.
- Establishes a foundation for further research into MCMV therapies and vaccine development.