Maternal immunization with RSV fusion glycoprotein vaccine and substantial protection of neonatal baboons against respiratory syncytial virus pulmonary challenge
| Autor: | Jing-Hui Tian, Michael J. Massare, Vadim A. Ivanov, Robert C. Welliver, Larry Ellingsworth, Gale Smith, Hanxin Lu, James F. Papin, Mimi Guebre-Xabier, David Flyer, Greg Glenn, Alisha Preno |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
viruses
030231 tropical medicine Mothers Respiratory Syncytial Virus Infections Antibodies Viral Virus 03 medical and health sciences 0302 clinical medicine medicine Respiratory Syncytial Virus Vaccines Animals 030212 general & internal medicine Respiratory system Glycoproteins General Veterinary General Immunology and Microbiology biology business.industry Immunogenicity Vaccination Public Health Environmental and Occupational Health Pulmonary edema medicine.disease Antibodies Neutralizing Titer Infectious Diseases Immunization Respiratory Syncytial Virus Human Immunology biology.protein Molecular Medicine Female Antibody business Viral Fusion Proteins Papio |
| Zdroj: | Vaccine. 38(5) |
| ISSN: | 1873-2518 |
| Popis: | Globally, human respiratory syncytial virus (RSV) is a major cause of severe lower respiratory infection in infants and young children. There are no licensed vaccines despite the high worldwide disease burden. RSV fusion (F) glycoprotein vaccine is the most advanced candidate for maternal immunization. In this report, a baboon maternal immunization model was used to assess the immunogenicity and protection of infants against pulmonary challenge with human RSV/A. Vaccination in the third trimester produced high anti-RSV F IgG titers and virus-neutralizing antibodies. Infants born to immunized females had high levels of serum RSV antibodies that were comparable to maternal levels at birth and persisted for over 50 days with a half-life of 14–24 days. Furthermore, infants from immunized females and challenged with RSV/A were healthy, developed less severe disease, and had only mild pulmonary inflammatory changes whereas infants born to non-vaccinated females developed more severe disease with marked to moderate interstitial pneumonia, pulmonary edema, and bronchiolar obstruction. These results support the further development of the RSV F vaccine for maternal immunization. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect