A retroviral vector containing wild-type p53 tumor suppressor gene (wt-p53)
under the control of viral LTR sequences was constructed and transfected i
nto packaging cell line GP+envAm12. Virus producing single cell clone GP+en
vAm12/p53clC8 (8 x 10(5) cfu/ml, determined on NIH 3T3 cells) was isolated
and used to transfer wt-p53 gene into human glioma cell lines in vitro. Dec
reased viability in p53-infected cells as compared to uninfected or empty v
irus infected cells was observed.