Spatial kinetics and immune control of murine cytomegalovirus infection in the salivary glands

Human cytomegalovirus (HCMV) is the most common congenital infection. Several HCMV vaccines are in development, but none have yet been approved. An understanding of the kinetics of CMV replication and transmission may inform the rational design of vaccines to prevent this infection. The salivary gla...

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Bibliographic Details
Published in:PLoS computational biology 2024-08, Vol.20 (8), p.e1011940
Main Authors: Byrne, Catherine M, Márquez, Ana Citlali, Cai, Bing, Coombs, Daniel, Gantt, Soren
Format: Article
Language:English
Subjects:
Analysis
B cells
Biology and life sciences
Cytomegalovirus infections
Development and progression
Disease transmission
Health aspects
Immune response
Immunity
Infection
Medical research
Medicine and health sciences
Medicine, Experimental
Prevention
Research and Analysis Methods
Salivary glands
Vaccines
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Summary:Human cytomegalovirus (HCMV) is the most common congenital infection. Several HCMV vaccines are in development, but none have yet been approved. An understanding of the kinetics of CMV replication and transmission may inform the rational design of vaccines to prevent this infection. The salivary glands (SG) are an important site of sustained CMV replication following primary infection and during viral reactivation from latency. As such, the strength of the immune response in the SG likely influences viral dissemination within and between hosts. To study the relationship between the immune response and viral replication in the SG, and viral dissemination from the SG to other tissues, mice were infected with low doses of murine CMV (MCMV). Following intra-SG inoculation, we characterized the viral and immunological dynamics in the SG, blood, and spleen, and identified organ-specific immune correlates of protection. Using these data, we constructed compartmental mathematical models of MCMV infection. Model fitting to data and analysis indicate the importance of cellular immune responses in different organs and point to a threshold of infection within the SG necessary for the establishment and spread of infection.
ISSN:1553-7358
1553-734X
1553-7358
DOI:10.1371/journal.pcbi.1011940