Parra-Rojas C, Messling VV, Hernandez-Vargas EA. Adjuvanted influenza vaccine dynamics. Sci Rep. 2019 Jan 11;9(1):73
Adjuvanted influenza vaccines constitute a key element towards inducing neutralizing antibody responses in populations with reduced responsiveness, such as infants and elderly subjects, as well as in devising antigen-sparing strategies. In particular, squalene-containing adjuvants have been observed to induce enhanced antibody responses, as well as having an influence on cross-reactive immunity. To explore the effects of adjuvanted vaccine formulations on antibody response and their relation to protein-specific immunity, we propose different mathematical models of antibody production dynamics in response to influenza vaccination. Data from ferrets immunized with commercial H1N1pdm09 vaccine antigen alone or formulated with different adjuvants was instrumental to adjust model parameters. While the affinity maturation process complexity is abridged, the proposed model is able to recapitulate the essential features of the observed dynamics. Our numerical results suggest that there exists a qualitative shift in protein-specific antibody response, with enhanced production of antibodies targeting the NA protein in adjuvanted versus non-adjuvanted formulations, in conjunction with a protein-independent boost that is over one order of magnitude larger for squalene-containing adjuvants. Furthermore, simulations predict that vaccines formulated with squalene-containing adjuvants are able to induce sustained antibody titers in a robust way, with little impact of the time interval between immunizations.
See Also:
Latest articles in those days:
- [preprint]Susceptibility of bovine respiratory and mammary epithelial cells to avian and mammalian derived clade 2.3.4.4b H5N1 highly pathogenic avian influenza viruses 22 hours ago
- Genetic Diversity of H10N3 Avian Influenza Virus Isolated from Anhui Province, China 23 hours ago
- Molecular origion of human infection with a novel avian influenza A H10N3 virus in China, 2021 23 hours ago
- Clade 2.3.4.4b but not historical clade 1 HA replicating RNA vaccine protects against bovine H5N1 challenge in mice 23 hours ago
- GGCX promotes Eurasian avian-like H1N1 swine influenza virus adaption to interspecies receptor binding 23 hours ago
[Go Top] [Close Window]