Journal
JOURNAL OF VIROLOGY
Volume 80, Issue 9, Pages 4521-4527Publisher
AMER SOC MICROBIOLOGY
DOI: 10.1128/JVI.80.9.4521-4527.2006
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Funding
- Medical Research Council [G0400795] Funding Source: Medline
- Wellcome Trust [055303/Z/98/Z, 54797/Z/98/Z] Funding Source: Medline
- Medical Research Council [G0400795, G0400503B] Funding Source: researchfish
- MRC [G0400795] Funding Source: UKRI
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Respiratory syncytial virus (RSV) is a major viral pathogen of infants that also reinfects adults. During RSV infection, infiammatory host cell recruitment to the lung plays a central role in determining disease outcome. Chemokines mediate cell recruitment to sites of inflammation and are influenced by, and influence, the production of cytokines. We therefore compared chemokine production in a mouse model of immunopathogenic RSV infection in which either Th1 or Th2 immunopathology is induced by prior sensitization to individual RSV proteins. Chemokine expression profiles were profoundly affected by the nature of the pulmonary immunopathology: Th2 immunopathology in BALB/c mice was associated with increased and prolonged expression of CCL2 (MCP-1), CXCL10 (IP-10), and CCL11 (eotaxin) starting within 24 h of challenge. C57BL/6 mice with Th2 pathology (enabled by a deficiency of CD8(+) cells) also showed increased CCL2 production. No differences in chemokine receptor expression were detected. Chemokine blockers may therefore be of use for children with bronchiolitis.
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