Title |
The intranasal adjuvant Endocine™ enhances both systemic and mucosal immune responses in aged mice immunized with influenza antigen
|
---|---|
Published in |
Virology Journal, March 2017
|
DOI | 10.1186/s12985-017-0698-4 |
Pubmed ID | |
Authors |
Tina Falkeborn, Jorma Hinkula, Marie Olliver, Alf Lindberg, Anna-Karin Maltais |
Abstract |
Despite availability of annual influenza vaccines, influenza causes significant morbidity and mortality in the elderly. This is at least in part a result of immunosenescence; the age-dependent decrease in immunological competence that results in greater susceptibility to infections and reduced responses to vaccination. To improve protective immune responses in this age group, new vaccines strategies, such as the use of adjuvants, are needed. Here, we evaluated the mucosal vaccine adjuvant Endocine™, formulated with split influenza antigen and administered intranasally in aged (20-month old) mice. Humoral immune responses were assessed and compared to unadjuvanted intranasal and subcutaneous vaccines. We show that formulation with Endocine™ significantly enhances hemagglutination inhibition (HI) titers, as well as serum IgG and mucosal IgA antibody titers, compared to both types of unadjuvanted vaccines. Thus, our results indicate that intranasal vaccination with Endocine™ is a possible approach for the development of mucosal influenza vaccines for the elderly. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 1 | 100% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Science communicators (journalists, bloggers, editors) | 1 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 23 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Researcher | 11 | 48% |
Student > Bachelor | 3 | 13% |
Student > Master | 2 | 9% |
Student > Doctoral Student | 1 | 4% |
Student > Ph. D. Student | 1 | 4% |
Other | 0 | 0% |
Unknown | 5 | 22% |
Readers by discipline | Count | As % |
---|---|---|
Biochemistry, Genetics and Molecular Biology | 5 | 22% |
Immunology and Microbiology | 5 | 22% |
Nursing and Health Professions | 2 | 9% |
Pharmacology, Toxicology and Pharmaceutical Science | 1 | 4% |
Agricultural and Biological Sciences | 1 | 4% |
Other | 3 | 13% |
Unknown | 6 | 26% |