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Plos Biology : Impaired Antibody Response Causes Persistence of Prototypic T Cell–contained Virus, Volume 7

By Rowland-jones, Sarah

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Book Id: WPLBN0003930787
Format Type: PDF eBook :
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Reproduction Date: 2015

Title: Plos Biology : Impaired Antibody Response Causes Persistence of Prototypic T Cell–contained Virus, Volume 7  
Author: Rowland-jones, Sarah
Volume: Volume 7
Language: English
Subject: Journals, Science, Biology
Collections: Periodicals: Journal and Magazine Collection (Contemporary), PLoS Biology
Historic
Publication Date:
Publisher: Plos

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Rowland-Jones, S. (n.d.). Plos Biology : Impaired Antibody Response Causes Persistence of Prototypic T Cell–contained Virus, Volume 7. Retrieved from http://netlibrary.net/


Description
Description : CD8 T cells are recognized key players in control of persistent virus infections, but increasing evidence suggests that assistance from other immune mediators is also needed. Here, we investigated whether specific antibody responses contribute to control of lymphocytic choriomeningitis virus (LCMV), a prototypic mouse model of systemic persistent infection. Mice expressing transgenic B cell receptors of LCMV-unrelated specificity, and mice unable to produce soluble immunoglobulin M (IgM) exhibited protracted viremia or failed to resolve LCMV. Virus control depended on immunoglobulin class switch, but neither on complement cascades nor on Fc receptor c chain or Fc c receptor IIB. Cessation of viremia concurred with the emergence of viral envelope-specific antibodies, rather than with neutralizing serum activity, and even early nonneutralizing IgM impeded viral persistence. This important role for virus-specific antibodies may be similarly underappreciated in other primarily T cell–controlled infections such as HIV and hepatitis C virus, and we suggest this contribution of antibodies be given consideration in future strategies for vaccination and immunotherapy.

 

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