Table 1.

Growth properties of helper viruses in 293 and 293cre cells

	dl70-3 without lox wild-type E3	AdLC8luc	H1 wild-type Ψ E3 insert	H14 mod. Ψ E3 insert	H10 mod. Ψ wild-type E3
293	1,267  ± 603*	33.8  ± 5.86	860  ± 295	612  ± 141	930  ± 181
293cre415	1,450  ± 444	1.15  ± 0.38	1.48  ± 0.31	1.30  ± 0.23	1.78  ± 0.40

Cells (1 × 10⁶) were infected with different HD vectors at multiplicity of infection of 2 and were lysed at 48 h, and virus was titrated as described. 

*Infections units/cell.