TITLE

Therapeutic Monoclonal Antibody Treatment Targeting Respiratory Syncytial Virus (RSV) G Protein Mediates Viral Clearance and Reduces the Pathogenesis of RSV Infection in BALB/c Mice

AUTHOR(S)
Haynes, Lia M.; Caidi, Hayat; Radu, Gertrud U.; Congrong Miao; Harcourt, Jennifer L.; Tripp, Ralph A.; Anderson, Larry J.
PUB. DATE
August 2009
SOURCE
Journal of Infectious Diseases;8/1/2009, Vol. 200 Issue 3, p439
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Because the G protein of respiratory syncytial virus (RSV) has a CX3C chemokine motif that has been associated with the ability of RSV G protein to modulate the virus-induced host immune response, we examined whether therapeutic treatment with an anti-RSV G monoclonal antibody (mAb), 131-2G, that blocks the CX3Cassociated activity of RSV G protein might decrease the pulmonary inflammation associated with infection in BALB/c mice. The results show that treatment with mAb 131-2G on day 3 after RSV infection reduces both inflammation and RSV titer in the lungs. Later administration of anti-RSV G mAb (day 5 after RSV infection) effectively reduced the viral titer but had a minimal effect on pulmonary inflammation. This study suggests that an anti-RSV G mAb might be an effective antiviral, either alone or in combination with anti-RSV F protein neutralizing antibodies, for decreasing the virus-induced host response to infection and improve treatment outcome.
ACCESSION #
43405660

 

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