The purpose of this brief review is to highlight how structural information can elucidate antibody recognition and neutralization of viruses. Studies on human rhinovirus demonstrated that antibodies need not induce conformational changes for neutralization and that viruses do not conceal receptor-binding regions from immune recognition. Ross River and Sindbis virus complexes were an early example of using antibodies to demark receptor-binding regions. The structure of an antibody bound to mouse norovirus is an example of antibodies binding to sharp protrusions on flexible receptor-binding domains. Finally, the structure of cucumber mosaic virus bound to a loop involved in aphid transmission demonstrated the importance of the context of antigen presentation and what happens when an antibody binds near an icosahedral symmetry axis.
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http://dx.doi.org/10.1016/j.coviro.2011.05.020 | DOI Listing |
Introduction: 58 million people worldwide are chronically infected with hepatitis C virus (HCV) and are at risk of developing cirrhosis and hepatocellular carcinoma (HCC). Direct-acting antivirals are highly effective; however, they are burdened by high costs and the unchanged risk of HCC and reinfection, making prophylactic countermeasures an urgent medical need. HCV high genetic diversity is one of the main obstacles to vaccine development.
View Article and Find Full Text PDFHum Vaccin Immunother
December 2025
Division of Virology, Department of Pathology, University of Cambridge, England, UK.
Cytomegalovirus (CMV) is a leading cause of congenital infections and significant health complications in immunocompromised individuals. With no licensed CMV vaccine available, the development of the mRNA-1647 offers promising advancements in CMV prevention. We have reviewed results from Phase 1 and 2 clinical trials of the mRNA-1647 vaccine, demonstrating robust immune responses in both seronegative and seropositive participants.
View Article and Find Full Text PDFVirol J
January 2025
State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, School of Life Sciences, School of Public Health, Xiamen University, Xiamen, 361102, PR China.
Coxsackievirus A6 (CVA6) has emerged as a major pathogen causing hand, foot and mouth disease (HFMD) outbreaks worldwide. The CVA6 epidemic poses a new challenge in HFMD control since there is currently no vaccine available against CVA6 infections. The Vero cell line has been widely used in vaccine production, particularly in the preparation of viral vaccines, including poliovirus vaccines and EV71 vaccines.
View Article and Find Full Text PDFGene Ther
January 2025
Shanghai Bao Pharmaceuticals Co., Ltd., No. 28 Luoxin Road, Baoshan, Shanghai, China.
The approved intravenous adeno-associated virus (AAV) therapies are limited by the widespread prevalence of pre-existing anti-AAV antibodies in the general population, which are known to restrict patients' ability to receive gene therapy and limit transfection efficacy in vivo. To address this challenge, we have developed a novel recombinant human immunoglobulin G degrading enzyme KJ103, characterized by low immunogenicity and clinical value for the elimination of anti-AAV antibodies in gene transfer. Herein, we conducted two randomized, blinded, placebo-controlled, single ascending dose Phase I studies in China and New Zealand, to evaluate the pharmacokinetics, pharmacodynamics, safety and immunogenicity of KJ103 in healthy volunteers.
View Article and Find Full Text PDFNat Commun
January 2025
Biostatistics Research Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA.
Neutralizing antibody titer has been a surrogate endpoint for guiding COVID-19 vaccine approval and use, although the pandemic's evolution and the introduction of variant-adapted vaccine boosters raise questions as to this surrogate's contemporary performance. For 985 recipients of an mRNA second bivalent or monovalent booster containing various Spike inserts [Prototype (Ancestral), Beta, Delta, and/or Omicron BA.1 or BA.
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