In contrast, in samples with hMSCs infected with HAdV-5-HexPos3 (no life cycle modification) or HAdV-5-HexPos3-E1A-Δ24, only single eGFP-expressing cells were detected until 72 h post-infection, and even after more than 200 h, single eGFP-expressing hMSCs were still visible. This evidence concerns the gene DHTKD1 and infection.