Genetic fusion of proteins to the SIV Tat protein enhances their immunogenicity.

Abstract:

:The potential of genetically fusing recombinant proteins to the simian immunodeficiency virus (SIV) Tat protein has been investigated. The recombinant SIV Tat protein was initially expressed in very low amounts in E. coli, but optimization of the coding sequence for translation in the bacterial host significantly improved protein expression. Whilst fusion of SIV Tat to an experimental antigen (GST) facilitated the binding of the antigen to cell surfaces it did not appear to facilitate the transport of the protein into the cytosol. The immunogenicity of GST was significantly enhanced, in the absence of adjuvants, when fused to SIV Tat, with the induction of IgG1 and IgG2a antibodies indicative of a Th1 response being induced. However, no evidence was obtained that such an immunization scheme efficiently induced a CTL response.

journal_name

Vaccine

journal_title

Vaccine

authors

Chen YH,Diassiti A,Randall RE

doi

10.1016/j.vaccine.2005.09.012

subject

Has Abstract

pub_date

2006-02-06 00:00:00

pages

708-15

issue

6

eissn

0264-410X

issn

1873-2518

pii

S0264-410X(05)00942-4

journal_volume

24

pub_type

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