Transgenes In Vivo Adenovirus Affording Transprotection of Responses Against Replication-Defective Soluble CD8 Attenuates Cytotoxic T Cell
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Induction of cytotoxic T-cell response against hepatitis C virus structural antigens using a defective recombinant adenovirus.
A replication-defective recombinant adenovirus (RAd), RAdCMV-CE1, containing core and E1 genes of hepatitis C virus (HCV) was constructed. RAdCMV-CE1 was able to express core and E1 proteins both in mice and human cells. Immunization of BALB/c mice with RAdCMV-CE1 induced a specific cytotoxic T-cell response against the two HCV proteins. This response was characterized using a panel of 60 synth...
متن کاملAmplified and persistent immune responses generated by single-cycle replicating adenovirus vaccines.
UNLABELLED Replication-competent adenoviral (RC-Ad) vectors generate exceptionally strong gene-based vaccine responses by amplifying the antigen transgenes they carry. While they are potent, they also risk causing adenovirus infections. More common replication-defective Ad (RD-Ad) vectors with deletions of E1 avoid this risk but do not replicate their transgene and generate markedly weaker vacc...
متن کاملComparative immunogenicity in rhesus monkeys of DNA plasmid, recombinant vaccinia virus, and replication-defective adenovirus vectors expressing a human immunodeficiency virus type 1 gag gene.
Cellular immune responses, particularly those associated with CD3(+) CD8(+) cytotoxic T lymphocytes (CTL), play a primary role in controlling viral infection, including persistent infection with human immunodeficiency virus type 1 (HIV-1). Accordingly, recent HIV-1 vaccine research efforts have focused on establishing the optimal means of eliciting such antiviral CTL immune responses. We evalua...
متن کاملVariation in adenovirus transgene expression between BALB/c and C57BL/6 mice is associated with differences in interleukin-12 and gamma interferon production and NK cell activation.
The innate immune response against replication-defective adenoviruses (Ad) is poorly defined. We and others have previously observed striking differences in the rate at which the Ad vector itself or the virus encoding a variety of transgenes is eliminated in different mouse strains. Here, we report that Ad infection of BALB/ mice is associated with sixfold-higher levels of serum alanine aminotr...
متن کاملCD8+ T cell responses following replication-defective adenovirus serotype 5 immunization are dependent on CD11c+ dendritic cells but show redundancy in their requirement of TLR and nucleotide-binding oligomerization domain-like receptor signaling.
Replication-defective adenovirus serotype 5 (rAd5) is the most potent recombinant vector for eliciting CD8 T cell responses in humans. In this study, the innate mechanisms that influence T cell responses following rAd5 immunization were assessed in mice. Using rAd5 expressing enhanced GFP (eGFP-rAd5), we show that rAd5 transfects CD11c(+) dendritic cells (DCs) in draining lymph nodes in vivo fo...
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تاریخ انتشار 2000