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Enhanced resistance to coxsackievirus B3-induced myocarditis by intranasal co-immunization of lymphotactin gene encapsulated in chitosan particle
- Source :
-
Virology . Apr2009, Vol. 386 Issue 2, p438-447. 10p. - Publication Year :
- 2009
-
Abstract
- Abstract: Coxsackievirus B3 (CVB3) is a gastrointestinal virus causing myocarditis in human and mice. An ideal vaccine for CVB3-myocarditis requires both humoral and cellular immunity at systemic and mucosal compartments. We described here an enhancing strategy for chitosan-pVP1 vaccine by co-immunizing with lymphotactin (LTN) gene, a T cell-attractive-chemokine, encapsulated in chitosan particle to provide more protection against CVB3. Mice were intranasally co-immunized with 4 doses of chitosan–DNA vaccines separately encapsulating VP1 and LTN plasmids by 2 week-intervals and challenged with CVB3 4 weeks after the last immunization. Compared with chitosan-pVP1 alone, co-immunization with chitosan-pLTN significantly increased high-avidity-neutralizing antibody levels in serum and in intestinal mucosa, and promoted systemic and mucosal Th1 and CD8+CTL immune responses. Accordingly, enhanced resistance to CVB3-myocarditis was evidenced by reduced myocardial viral load, profound subsidence of myocarditis and increased survival rate. This strategy represents a promising platform for Th1 polarization and protection against mucosal infectious pathogens. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00426822
- Volume :
- 386
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Virology
- Publication Type :
- Academic Journal
- Accession number :
- 37234907
- Full Text :
- https://doi.org/10.1016/j.virol.2009.01.029