The terminal parts of the influenza hemagglutinin (HA) receptors __α__2,6‐ and __α__2,3‐sialyllactoses were conjugated to an artificial carrier, named sequential oligopeptide carrier (SOC~4~), to formulate human and avian receptor mimics, respectively. SOC~4~, formed by the tripeptide unit Lys‐Aib‐G
Influenza virus H5N1 hemagglutinin (HA) T-cell epitope conjugates: design, synthesis and immunogenicity
✍ Scribed by Theodore Skarlas; Stella Zevgiti; Karoline Droebner; Eugenia Panou-Pomonis; Oliver Planz; Maria Sakarellos-Daitsiotis
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 246 KB
- Volume
- 17
- Category
- Article
- ISSN
- 1075-2617
- DOI
- 10.1002/psc.1320
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✦ Synopsis
Abstract
The influenza virus, major surface glycoprotein hemagglutinin (HA) is one of the principal targets for the development of protective immunity. Aiming at contributing to the development of a vaccine that remains the first choice for prophylactic intervention, a reconstituted model of HA, mimicking its antigenic properties was designed, synthesized and tested in mice for the induction of protective immunity. Four helper T lymphocyte [HTL (T~1~, T~3~, T~7~ and T~8~)] and four cytotoxic lymphocyte [CTL (T~2~, T~4~, T~5~ and T~6~)] epitopes were coupled in two copies each to an artificial carrier, SOC~4~, which was formed by the repeating tripeptide Lys‐Aib‐Gly. The helical conformation of the SOC~4~‐conjugates preserves the initial topology of the attached epitopes, which is critical for their immunogenic properties. Survival of immunized animals, ranged from 30 to 50%, points out the induction of protective immunity by using the SOC~4~‐conjugates. Copyright © 2010 European Peptide Society and John Wiley & Sons, Ltd.
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