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- Title
SPECT/CT Imaging of hNIS -Expression after Intravenous Delivery of an Oncolytic Adenovirus and <sup>131</sup>I.
- Authors
Rajecki, Maria; Sarparanta, Mirkka; Hakkarainen, Tanja; Tenhunen, Mikko; Diaconu, Iulia; Kuhmonen, Venla; Kairemo, Kalevi; Kanerva, Anna; Airaksinen, Anu J.; Hemminki, Akseli
- Abstract
Oncolytic adenoviruses can be engineered for better tumor selectivity, gene delivery and be armed for imaging and concentrating radionuclides into tumors for synergistic oncolysis. We constructed Ad5/3-hTERT-hNIS where replication is controlled by hTERT-promoter. Ad5/3-hTERT-hNIS expresses hNIS for imaging of transgene expression and for treatment of infected tumors by radioiodine. Ad5/3-hTERT-hNIS efficiently killed prostate cancer cells and induced iodine uptake in vitro and in vivo after intratumoral virus administration. Survival of mice treated with intravenous Ad5/3-hTERT-hNIS significantly prolonged survival over mock or radioiodine only but the combination of virus with radioiodine was not more effective than virus alone. Temporal and spatial changes in hNIS-expression during therapy were detected with SPECT, demonstrating feasibility of evaluation of the combination therapy with hNIS-expressing adenoviruses and radioiodide.
- Publication
PLoS ONE, 2012, Vol 7, Issue 3, p1
- ISSN
1932-6203
- Publication type
Academic Journal
- DOI
10.1371/journal.pone.0032871