Academic Journal
Rational design of a highly immunogenic prefusion-stabilized F glycoprotein antigen for a respiratory syncytial virus vaccine
| العنوان: | Rational design of a highly immunogenic prefusion-stabilized F glycoprotein antigen for a respiratory syncytial virus vaccine |
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| المؤلفون: | Che, Ye, Gribenko, Alexey V., Song, Xi, Handke, Luke D., Efferen, Kari S., Tompkins, Kristin, Kodali, Srinivas, Nunez, Lorna, Prasad, A. Krishna, Phelan, Lynn M., Ammirati, Mark, Yu, Xiaodi, Lees, Joshua A., Chen, Wei, Martinez, Lyndsey, Roopchand, Vidia, Han, Seungil, Qiu, Xiayang, DeVincenzo, John P., Jansen, Kathrin U., Dormitzer, Philip R., Swanson, Kena A. |
| المصدر: | Science Translational Medicine ; volume 15, issue 693 ; ISSN 1946-6234 1946-6242 |
| بيانات النشر: | American Association for the Advancement of Science (AAAS) |
| سنة النشر: | 2023 |
| الوصف: | Respiratory syncytial virus (RSV) is the leading, global cause of serious respiratory disease in infants and is an important cause of respiratory illness in older adults. No RSV vaccine is currently available. The RSV fusion (F) glycoprotein is a key antigen for vaccine development, and its prefusion conformation is the target of the most potent neutralizing antibodies. Here, we describe a computational and experimental strategy for designing immunogens that enhance the conformational stability and immunogenicity of RSV prefusion F. We obtained an optimized vaccine antigen after screening nearly 400 engineered F constructs. Through in vitro and in vivo characterization studies, we identified F constructs that are more stable in the prefusion conformation and elicit ~10-fold higher serum-neutralizing titers in cotton rats than DS-Cav1. The stabilizing mutations of the lead construct (847) were introduced onto F glycoprotein backbones of strains representing the dominant circulating genotypes of the two major RSV subgroups, A and B. Immunization of cotton rats with a bivalent vaccine formulation of these antigens conferred complete protection against RSV challenge, with no evidence of disease enhancement. The resulting bivalent RSV prefusion F investigational vaccine has recently been shown to be efficacious against RSV disease in two pivotal phase 3 efficacy trials, one for passive protection of infants by immunization of pregnant women and the second for active protection of older adults by direct immunization. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1126/scitranslmed.ade6422 |
| الاتاحة: | http://dx.doi.org/10.1126/scitranslmed.ade6422 https://www.science.org/doi/pdf/10.1126/scitranslmed.ade6422 |
| رقم الانضمام: | edsbas.99267270 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1126/scitranslmed.ade6422 |
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