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Cytokine and Chemokine Gene Expression after Primary and Secondary Respiratory Syncytial Virus Infection in Cotton Rats
Jorge C. G. Blanco, Joann Y. Richardson, Miriam E. R. Darnell, Anne Rowzee, Lioubov Pletneva, David D. Porter and Gregory A. Prince
The Journal of Infectious Diseases
Vol. 185, No. 12 (Jun. 15, 2002), pp. 1780-1785
Published by: Oxford University Press
Stable URL: http://www.jstor.org/stable/30138185
Page Count: 6
You can always find the topics here!Topics: Infections, Coinfection, Cytokines, Chemokines, Cotton, Lungs, Respiratory syncytial viruses, Human respiratory syncytial virus, Respiratory syncytial virus infections, Interferons
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The induction of pro- and anti-inflammatory cytokines and chemokines was studied in the lungs of cotton rats after primary or secondary infection with respiratory syncytial virus (RSV). Increases in messenger RNA (mRNA) levels of all genes analyzed were observed during the course of primary infection. In general, mRNA expression peaked between postinfection days 1 and 4 and returned to near-normal levels by day 10. During secondary infection, the expression of some genes (i.e., interferon [IFN]-γ and interleukin [IL]-10) began earlier, some (i.e., IL- 1β and macrophage inflammatory protein-lβ) began later, and some (i.e., IL- 1β, IL-10, growth-regulated protein, and tumor necrosis factor-α) showed prolonged expression, whereas 2 genes (i.e., IFN-α and IL-6) were not expressed. This study presents evidence of different kinetics of expression of inflammatory mediators during primary and secondary infection that likely coincide with innate and adaptive immune response and complement previous observations that emphasize the role of inflammation in the pathogenesis of RSV disease.
The Journal of Infectious Diseases © 2002 Oxford University Press