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      1. Author :
        Peter, Christoph; Kielstein, Jan T; Clarke-Katzenberg, Regina; Adams, M Christopher; Pitsiouni, Maria; Kambham, Neeraja; Karimi, Mobin A; Kengatharan, Ken M; Cooke, John P
      2. Title :
      3. Type :
        Journal Article
      4. Year :
        2007
      5. Publication :
        The Journal of urology
      6. Products :
      7. Volume :
        177
      8. Issue :
        6
      9. Page Numbers :
        N/A
      10. Research Area :
        N/A
      11. Keywords :
        Animals; Bioware; carcinoma, renal cell; Cell Culture Techniques; Cell Line, Tumor; Cell Proliferation; Firefly Luciferin; HT-29-luc-D6 cells; Humans; Kidney Neoplasms; Luminescence; Luminescent Agents; Male; Mice; Mice, SCID; Models, Biological; Tumor Burden
      12. Abstract :
        PURPOSE Bioluminescent imaging permits sensitive in vivo detection and quantification of cells engineered to emit light. We developed a bioluminescent human renal cancer cell line for in vitro and in vivo studies. MATERIAL AND METHODS The 2 human renal cell carcinoma cell lines SN12-C and SN12-L1 were stably transfected to constitutively express luciferase using a retroviral shuttle. The bioluminescent signal was correlated with tumor cell numbers in vitro. Parental and transfected cells were compared by growth kinetics and histology. Tumor burden after heterotopic injection in immune deficient mice was monitored up to 39 days. The kinetics of the bioluminescent signal was evaluated for 1 to 60 minutes following luciferin injection. RESULTS Bioengineered renal cancer cell lines stably expressed luciferase. The growth kinetics of the cells in vitro and the histology of tumors resulting from implantation of these cells were unaffected by retroviral transfection with the luciferase gene. As few as 1,000 cells could be reliably detected. The intensity of the bioluminescent signal correlated with the number of tumor cells in vitro. Photon emission in vivo and ex vivo correlated significantly with tumor weight at sacrifice. After intraperitoneal injection of luciferin there was a time dependent change in the intensity of the bioluminescent signal with maximum photon emission at 20 minutes (optimal 17 to 25). CONCLUSIONS Luciferase transfected human renal cancer lines allow reliable, rapid, noninvasive and longitudinal monitoring of tumor growth in vivo. The ability to assess tumor development in vivo with time is economical and effective compared to end point data experiments.
      13. URL :
        http://www.ncbi.nlm.nih.gov/pubmed/17509355
      14. Call Number :
        PKI @ catherine.lautenschlager @
      15. Serial :
        9009
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