The invention is directed to a transgene expression system comprising a transcription unit which contains a transgene operably linked to expression control sequences, preferably the CMV promoter, and which is delivered simultaneously with all or part of the adenovirus E4 genomic region to a cell in order...http://www.google.es/patents/US5981275?utm_source=gb-gplus-sharePatente US5981275 - Transgene expression system for increased persistence
Transgene expression system for increased persistence