The Sendai virus (SeV) contains a nonsegmented negative-strand RNA genome (15 384 bases) and belongs to the family Paramyxoviridae as a for humans non-pathogenic member. By using reverse genetic techniques tailor made recombinant virus mutants, harbouring transgenes, can be generated. In the present work, replication-deficient virus mutants have been developed to examine and clarify SeV gene expression with focus on future applications as viral gene therapeutic agents or vaccines. The deficiency of replication represents an additional safety factor for medical applications and could be achieved by eliminating the viral nucleocapsid gene, an essential component of SeV replication complex. In order to amplify these virus particles a cell culture based transcomplementation system was developed and optimized. Additionally, through SeV strain specific nucleotide substitutions cytotoxicity of the viral vector could be reduced in a cell type-dependent manner.
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The Sendai virus (SeV) contains a nonsegmented negative-strand RNA genome (15 384 bases) and belongs to the family Paramyxoviridae as a for humans non-pathogenic member. By using reverse genetic techniques tailor made recombinant virus mutants, harbouring transgenes, can be generated. In the present work, replication-deficient virus mutants have been developed to examine and clarify SeV gene expression with focus on future applications as viral gene therapeutic agents or vaccines. The deficiency...
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