Vaccines | |
Layer-By-Layer Nanoparticle Vaccines Carrying the G Protein CX3C Motif Protect against RSV Infection and Disease | |
Patricia A. Jorquera1  Katie E. Oakley1  Thomas J. Powell2  Naveen Palath2  James G. Boyd2  Ralph A. Tripp1  | |
[1] Department of Infectious Disease, College of Veterinary Medicine, University of Georgia, 111 Carlton Street, Athens, GA 30602, USA; E-Mails:;Artificial Cell Technologies Inc., 5 Science Park, Suite 13, New Haven, CT 06511, USA; E-Mails: | |
关键词: RSV; G protein; G glycoprotein; vaccine; CX3C; immunity; nanoparticle; | |
DOI : 10.3390/vaccines3040829 | |
来源: mdpi | |
【 摘 要 】
Respiratory syncytial virus (RSV) is the single most important cause of serious lower respiratory tract infections in young children; however no effective treatment or vaccine is currently available. Previous studies have shown that therapeutic treatment with a monoclonal antibody (clone 131-2G) specific to the RSV G glycoprotein CX3C motif, mediates virus clearance and decreases leukocyte trafficking to the lungs of RSV-infected mice. In this study, we show that vaccination with layer-by-layer nanoparticles (LbL-NP) carrying the G protein CX3C motif induces blocking antibodies that prevent the interaction of the RSV G protein with the fractalkine receptor (CX3CR1) and protect mice against RSV replication and disease pathogenesis. Peptides with mutations in the CX3C motif induced antibodies with diminished capacity to block G protein-CX3CR1 binding. Passive transfer of these anti-G protein antibodies to mice infected with RSV improved virus clearance and decreased immune cell trafficking to the lungs. These data suggest that vaccination with LbL-NP loaded with the CX3C motif of the RSV G protein can prevent manifestations of RSV disease by preventing the interaction between the G protein and CX3CR1 and recruitment of immune cells to the airways.
【 授权许可】
CC BY
© 2015 by the authors; licensee MDPI, Basel, Switzerland.
【 预 览 】
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