Adenovirus types 11p and 4p show a higher binding affinity and infectivity than type 5 for endothelial and carcinoma cell lines. Adenovirus type 11p shows a stronger binding to cells for neural origin, such as glioblastoma, neuroblastoma and medulloblastoma. The fact that adenovirus type 11 has a comparatively low prevalence in society, together with its high affinity and infectivity, makes it very suitable for use in gene therapy.