Abstract:
BACKGROUND:The incidence of dengue, an infectious disease caused by dengue virus (DENV), has dramatically increased around the world in recent decades and is becoming a severe public health threat. However, there is currently no specific treatment for dengue fever, and licensed vaccine against dengue is not available. Vaccination with virus-like particles (VLPs) has shown considerable promise for many viral diseases, but the effect of DENV VLPs to induce specific immune responses has not been adequately investigated. RESULTS:By optimizing the expression plasmids, recombinant VLPs of four antigenically different DENV serotypes DENV1-4 were successfully produced in 293T cells. The vaccination effect of dengue VLPs in mice showed that monovalent VLPs of each serotype stimulated specific IgG responses and potent neutralizing antibodies against homotypic virus. Tetravalent VLPs efficiently enhanced specific IgG and neutralizing antibodies against all four serotypes of DENV. Moreover, vaccination with monovalent or tetravalent VLPs resulted in the induction of specific cytotoxic T cell responses. CONCLUSIONS:Mammalian cell expressed dengue VLPs are capable to induce VLP-specific humoral and cellular immune responses in mice, and being a promising subunit vaccine candidate for prevention of dengue virus infection.
journal_name
Virol Jjournal_title
Virology journalauthors
Zhang S,Liang M,Gu W,Li C,Miao F,Wang X,Jin C,Zhang L,Zhang F,Zhang Q,Jiang L,Li M,Li Ddoi
10.1186/1743-422X-8-333subject
Has Abstractpub_date
2011-06-30 00:00:00pages
333issn
1743-422Xpii
1743-422X-8-333journal_volume
8pub_type
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