Immunoprophylactic strategies against respiratory influenza virus infection

Autor: Deana Sabuda, Colin Crist, Edward G. Saravolac, Huiming Yang, Glen Schnell, Hilton B Levy, Meir Kende, Karen Blasetti, Jonathan P. Wong
Rok vydání: 2001
Předmět:
Zdroj: Vaccine. 19:2227-2232
ISSN: 0264-410X
DOI: 10.1016/s0264-410x(00)00450-3
Popis: The objective of this report is to evaluate the prophylactic efficacy of liposome-mediated immunotherapy for prevention of respiratory influenza virus infection in mice. Antiviral antibody, interferon-gamma and poly (ICLC) were encapsulated in liposomes and they were evaluated for their ability to induce protective immunity against lethal influenza infection. Passive immunization using liposome-encapsulated antiviral antibody was found to offer complete protection against the virus challenge. However, this pretreatment must be administered within 24 h prior to virus challenge to be protective. Pretreatment with liposome-encapsulated interferon-gamma was found to stimulate cellular immune responses, but the protection is partial. Immunoprophylaxis using liposome-encapsulated double-stranded (ds) RNA poly (ICLC) provided complete and longer-lasting protection against influenza infection. These results suggest liposome-mediated immunoprophylactic approaches are effective in the prevention of respiratory influenza virus infection.
Databáze: OpenAIRE