Chimeric lyssavirus glycoproteins with increased immunological potential
| Autor: | Pierre Perrin, Chokri Bahloul, Yves Jacob, Corinne Jallet, Astrid Drings, Noël Tordo, Emmanuel Desmezieres |
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| Předmět: |
Recombinant Fusion Proteins
Molecular Sequence Data Immunology Mokola virus medicine.disease_cause Microbiology Epitope Mice Structure-Activity Relationship Plasmid Viral Envelope Proteins Antigen Virology Vaccines and Antiviral Agents Vaccines DNA medicine Animals Amino Acid Sequence Antigens Viral Lyssavirus Glycoproteins chemistry.chemical_classification Mice Inbred BALB C biology Rabies virus biology.organism_classification Molecular biology chemistry Insect Science biology.protein Interleukin-2 Female Antibody Glycoprotein Plasmids |
| Zdroj: | Scopus-Elsevier |
| Popis: | The rabies virus glycoprotein molecule (G) can be divided into two parts separated by a flexible hinge: the NH 2 half (site II part) containing antigenic site II up to the linear region (amino acids [aa] 253 to 275 encompassing epitope VI [aa 264]) and the COOH half (site III part) containing antigenic site III and the transmembrane and cytoplasmic domains. The structural and immunological roles of each part were investigated by cell transfection and mouse DNA-based immunization with homogeneous and chimeric G genes formed by fusion of the site II part of one genotype (GT) with the site III part of the same or another GT. Various site II-site III combinations between G genes of PV (Pasteur virus strain) rabies (GT1), Mokola (GT3), and EBL1 (European bat lyssavirus 1 [GT5]) viruses were tested. Plasmids pGPV-PV, pGMok-Mok, pGMok-PV, and pGEBL1-PV induced transient expression of correctly transported and folded antigens in neuroblastoma cells and virus-neutralizing antibodies against parental viruses in mice, whereas, pG-PVIII (site III part only) and pGPV-Mok did not. The site III part of PV (GT1) was a strong inducer of T helper cells and was very effective at presenting the site II part of various GTs. Both parts are required for correct folding and transport of chimeric G proteins which have a strong potential value for immunological studies and development of multivalent vaccines. Chimeric plasmid pGEBL1-PV broadens the spectrum of protection against European lyssavirus genotypes (GT1, GT5, and GT6). |
| Databáze: | OpenAIRE |
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