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Updated: Sep 5, 2026
An In vitro Model to Study Immune Responses of Human Peripheral Blood Mononuclear Cells to Human Respiratory Syncytial Virus Infection
Published on: December 10, 2013
Differences in Susceptibility of Human and Mouse Macrophage Cell Lines to Respiratory Syncytial Virus Infection
Annick Heykers1, Annelies Leemans1, Winke Van der Gucht1
1Laboratory of Microbiology, Parasitology and Hygiene, University of Antwerp, Antwerp, Belgium.
Objectives:
Differences have been observed in the susceptibility of macrophage cell lines to respiratory syncytial virus (RSV) infection. In this study, we evaluated whether the type of macrophage cell line and RSV strain used have an influence on the infectivity and production of progeny virus.
Methods:
Both human and murine macrophage-like cell lines were infected with different RSV strains, both lab strains as well as clinical isolates. The infection was evaluated after 24 and 72 h by immunofluorescence staining and microscopic analysis, and the production of new virus particles was determined by plaque assay.
Results:
Susceptibility of macrophages to RSV was influenced by the RSV strain used but was mostly dependent on the macrophage cell line. Numbers of infected cells and virus production were generally very low or absent in murine cell lines. In human cell lines, clear infection was observed associated with production of new virus particles.
Conclusion:
Differences in susceptibility of macrophage cell lines to RSV infection are primarily related to the species of origin of the cell line but are also influenced by the RSV strain.
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