Abstract
ABSTRACTThe attachment (G) protein of respiratory syncytial virus (RSV) is synthesized as two mature forms: a membrane-anchored form and a smaller secreted form. BALB/c mice scarified with vaccinia virus (VV) expressing the secreted form develop a greater pulmonary eosinophilic influx following RSV challenge than do mice scarified with VV expressing the membrane-anchored form. To determine if a soluble form of an RSV protein was sufficient to induce eosinophilia following RSV challenge, a cDNA that encoded a secreted form of the fusion (F) protein of RSV was constructed and expressed in VV (VV-Ftm−). Splenocytes and lung lymphocytes from mice primed with VV-Ftm−produced significantly more of the Th2 cytokines interleukin-4 (IL-4) and IL-5 than did mice vaccinated with VV expressing either the native (membrane-anchored) form of the F protein or the G protein. Although mice scarified with VV-Ftm−developed a slight increase in the number of pulmonary eosinophils following RSV infection, the increase was not as great as that seen in VV-G-primed mice. Despite the increased IL-4 and IL-5 production and in contrast to mice primed with VV-G, mice primed with VV-Ftm−developed RSV-specific cytotoxic T lymphocytes (CTL) and maintained high levels of gamma interferon production. These data demonstrate that recombinant VV strains expressing soluble forms of RSV proteins induce immune responses that are more Th2-like. However, this change alone does not appear sufficient to induce vaccine-augmented disease in the face of active CD8+CTL populations.
Bibliography
Bembridge, G. P., Lopez, J. A., Bustos, R., Melero, J. A., Cook, R., Mason, H., & Taylor, G. (1999). Priming with a Secreted Form of the Fusion Protein of Respiratory Syncytial Virus (RSV) Promotes Interleukin-4 (IL-4) and IL-5 Production but Not Pulmonary Eosinophilia following RSV Challenge. Journal of Virology, 73(12), 10086â10094.
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Dates
Type | When |
---|---|
Created | 5 years, 7 months ago (Dec. 31, 2019, 1:22 p.m.) |
Deposited | 1 year, 11 months ago (Sept. 24, 2023, 11:09 a.m.) |
Indexed | 4 months, 3 weeks ago (April 2, 2025, 10:23 a.m.) |
Issued | 25 years, 8 months ago (Dec. 1, 1999) |
Published | 25 years, 8 months ago (Dec. 1, 1999) |
Published Print | 25 years, 8 months ago (Dec. 1, 1999) |
@article{Bembridge_1999, title={Priming with a Secreted Form of the Fusion Protein of Respiratory Syncytial Virus (RSV) Promotes Interleukin-4 (IL-4) and IL-5 Production but Not Pulmonary Eosinophilia following RSV Challenge}, volume={73}, ISSN={1098-5514}, url={http://dx.doi.org/10.1128/jvi.73.12.10086-10094.1999}, DOI={10.1128/jvi.73.12.10086-10094.1999}, number={12}, journal={Journal of Virology}, publisher={American Society for Microbiology}, author={Bembridge, Gary P. and Lopez, Juan A. and Bustos, Regla and Melero, Jose A. and Cook, Roy and Mason, Helen and Taylor, Geraldine}, year={1999}, month=dec, pages={10086–10094} }