Cells producing recombinant retrovirus

摘要

PCT No. PCT/JP96/01484 Sec. 371 Date Mar. 31, 1998 Sec. 102(e) Date Mar. 31, 1998 PCT Filed May 31, 1996 PCT Pub. No. WO96/38545 PCT Pub. Date Dec. 5, 1996An objective of the present invention is to provide a packaging cell for preparing a retrovirus having a high viral titer. The cell producing a recombinant retrovirus is constructed by introducing, the Polyoma virus early region gene together with a recombinant plasmid or a recombinant retrovirus free from any replication origin derived from Polyoma virus into a packaging cell for preparing a recombinant retrovirus.