| 摘要 |
<p>Viral vector comprises an expression unit (EU) contg. 1 or more viral genes, and is:(1) functional in a complementing cell (CC) but not in a host cell, and(2) contains 1 or more heterologous regulatory sequences. Also claimed are:(1) infectious viral particles (VP) contg. this vector;(2) a eukaryotic host cell contg. VP or the vector;(3) a CC that includes an inducer and/or repressor, and(4) a process for the prepn. of infectious viral particles, which comprises: (i) introducing the vector as above to a CC capable of complementing the viral vector to obtain a transfected CC; (ii) cultivating the CC under conditions appropriate for the expression of viral genes and the prodn. of the infectious viral particle, and (iii) recovering the viral particle from the CC.</p> |
