Tumor uptake LPEI‐PEG‐GE11‐NIS ≈ 14.2 (48 hr p.i.) tumor uptake LPEI‐PEG‐GE11‐antisenseNIS ≈ not significant (48 hr p.i.) median survival LPEI‐PEG‐GE11‐NIS ≈ 25 days (after 1 week treatment) median survival LPEI‐PEG‐GE11‐antisenseNIS ≈ 11 days (after 1 week treatment). The gene discussed is SLC5A5; the disease is neoplasm.