The bright and the dark side of human antibody responses to flaviviruses: lessons for vaccine design
Autor: | Franz X. Heinz, Karin Stiasny, Marie-Christine Vaney, Félix A. Rey, Mariano Dellarole |
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Přispěvatelé: | Virologie Structurale - Structural Virology, Institut Pasteur [Paris]-Centre National de la Recherche Scientifique (CNRS), Institute of Virology (Vienna), Medizinische Universität Wien = Medical University of Vienna, FAR, MCV, and MD acknowledge support from the French ANR (grant ANR‐13‐ISV8‐0002‐01), Institut Pasteur, CNRS, and the LABEX IBEID. FXH and KS acknowledge support from the Austrian Science Fund FWF., ANR-13-ISV8-0002,flavistem,La protéine E des flavivirus : interactions et fusion membranaire(2013), Institut Pasteur [Paris] (IP)-Centre National de la Recherche Scientifique (CNRS) |
Rok vydání: | 2017 |
Předmět: |
0301 basic medicine
flavivirus structure viruses Review Biology Antibodies Viral Biochemistry Dengue fever Flavivirus Infections 03 medical and health sciences Epitopes Structural Biology antibody neutralization Genetics medicine Animals Humans Antibody-dependent enhancement antibody-dependent enhancement Original antigenic sin Molecular Biology Antigens Viral [SDV.BBM.BS]Life Sciences [q-bio]/Biochemistry Molecular Biology/Structural Biology [q-bio.BM] Viral Vaccine Flavivirus Viral Vaccines fla- vivirus structure medicine.disease biology.organism_classification Virology Antibodies Neutralizing Microbiology Virology & Host Pathogen Interaction 3. Good health Vaccination particle heterogeneity 030104 developmental biology Immunization Antibody Formation antibody‐dependent enhancement vaccine design Synthetic Biology & Biotechnology |
Zdroj: | EMBO Reports EMBO Reports, EMBO Press, 2018, 19 (2), pp.206-224. ⟨10.15252/embr.201745302⟩ EMBO Reports, 2018, 19 (2), pp.206-224. ⟨10.15252/embr.201745302⟩ |
ISSN: | 1469-3178 1469-221X |
Popis: | International audience; Zika and dengue viruses belong to the Flavivirus genus, a close group of antigenically related viruses that cause significant arthro-pod-transmitted diseases throughout the globe. Although infection by a given flavivirus is thought to confer lifelong protection, some of the patient's antibodies cross-react with other flaviviruses without cross-neutralizing. The original antigenic sin phenomenon may amplify such antibodies upon subsequent heterologous flavivirus infection, potentially aggravating disease by antibody-dependent enhancement (ADE). The most striking example is provided by the four different dengue viruses, where infection by one serotype appears to predispose to more severe disease upon infection by a second one. A similar effect was postulated for sequential infections with Zika and dengue viruses. In this review, we analyze the molecular determinants of the dual antibody response to flavivirus infection or vaccination in humans. We highlight the role of conserved partially cryptic epitopes giving rise to cross-reacting and poorly neutralizing, ADE-prone antibodies. We end by proposing a strategy for developing an epitope-focused vaccine approach to avoid eliciting undesirable antibodies while focusing the immune system on producing protective antibodies only. |
Databáze: | OpenAIRE |
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