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The Establishment of a Growth-controllable Orthotopic Bladder Cancer Model Through the Down-regulation of C-myc Expression

Overview
Journal Oncotarget
Specialty Oncology
Date 2017 Sep 9
PMID 28881578
Citations 6
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Abstract

To properly evaluate the biological effects of immunotherapy, it is critical to utilize a model of cancer in immune-competent mice. Currently, MBT-2 is the most common murine bladder cancer cell line used in orthotopic bladder cancer models, even though this cell type often has an inappropriate genetic mutation landscape. In these models, after tumors are detected with imaging, the mouse usually dies within two to three weeks due to post-renal azotemia caused by the rapidly growing mass. This event prohibits the evaluation of tumor behavior upon intravesical drug treatment. We explored whether an shRNA-induced decrease in the expression of the oncogene in MBT-2 cells could slow down their proliferation and tumor growth. We transduced MBT-2 cells with shRNA lentiviruses that bound c-myc, established MBT2.cMYCshRNA and confirmed the retardation of the growth of tumors implanted in C3H/He mice. Accordingly, this study suggests that this novel orthotopic bladder cancer model in immune-competent mice may be more appropriate for the analysis of the effects of the intravesical instillation of immunotherapeutic agents.

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References
1.
Jager W, Horiguchi Y, Shah J, Hayashi T, Awrey S, Gust K . Hiding in plain view: genetic profiling reveals decades old cross contamination of bladder cancer cell line KU7 with HeLa. J Urol. 2013; 190(4):1404-9. PMC: 3805942. DOI: 10.1016/j.juro.2013.03.009. View

2.
Chan E, Patel A, Heston W, Larchian W . Mouse orthotopic models for bladder cancer research. BJU Int. 2009; 104(9):1286-91. DOI: 10.1111/j.1464-410X.2009.08577.x. View

3.
Witjes J . Management of BCG failures in superficial bladder cancer: a review. Eur Urol. 2006; 49(5):790-7. DOI: 10.1016/j.eururo.2006.01.017. View

4.
Papamichalis G, Francia K, Karachaliou F, Anastasiades O, Spandidos D . Expression of the c-myc oncoprotein in human metaplastic epithelial cells of fibrocystic disease. Anticancer Res. 1988; 8(6):1217-22. View

5.
Dang C . MYC on the path to cancer. Cell. 2012; 149(1):22-35. PMC: 3345192. DOI: 10.1016/j.cell.2012.03.003. View