Abstract:
:Dengue is one of the most important mosquito-borne viral disease causing dengue fever and/or dengue shock syndrome/haemorrhagic fever. In some reports, the non-structural protein 1 (NS1) has been identified as a promising antigen for the development of vaccines against dengue virus (DENV). Apparently, it can elicit a protective antibody response with complement-fixing activities. In order to investigate the potential of a DNA vaccine based on the NS1 protein against DENV, we used the plasmid pcTPANS1, which contains the secretory signal sequence derived from human tissue plasminogen activator (t-PA) fused to the full length of the DENV-2 NS1 gene. All Balb/c mice intramuscularly inoculated with the pcTPANS1 presented high levels of NS1-specifc antibodies. Vaccinated animals were challenged with intracerebral DENV-2 virus inoculations and a 100% survival was observed. In general, results demonstrate that the pcTPANS1 plasmid is able to induce protection in mice, and then may be used as a vaccination approach against DENV in further assays.
journal_name
Vaccinejournal_title
Vaccineauthors
Costa SM,Freire MS,Alves AMdoi
10.1016/j.vaccine.2005.08.022subject
Has Abstractpub_date
2006-05-22 00:00:00pages
4562-4issue
21eissn
0264-410Xissn
1873-2518pii
S0264-410X(05)00819-4journal_volume
24pub_type
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