ArticleIn vivo (Athens, Greece)
Orthotopic Mouse Models of Urinary Bladder Cancer.
Article in In vivo (Athens, Greece). The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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8 authors at 3 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND/
aimUrinary bladder cancer has various etiologies and tends to recur and then progress to a higher grade. When muscles are invaded, the response to conventional therapy is poor and the quality of life deteriorates rapidly. Here, we summarize and compare two representative methods used to create the syngeneic mouse models required for immunological research. MATERIALS AND
methodsIn this study, we utilized six-week-old female C3H/HeNCrl mice and the mouse bladder tumor cell line MBT-2. The first method involved transurethral catheterization with poly-L-lysine pretreatment (catheter group), while the second method involved transperitoneal incision and direct injection of tumor cells into the bladder wall (open group). Mouse postoperative status was monitored on a weekly basis using magnetic resonance imaging (MRI).
resultsThe catheter group had a tumor development rate of 47% (7 out of 15 mice), with only 1 mouse developing an intravesical tumor. In contrast, the open group had a higher tumor formation rate of 69% (47 out of 68 mice), with 27 mice showing intravesical tumor formation. Notably, with a lower cell count, urinary obstruction events were observed 2 weeks post-inoculation, which is one week later than the higher cell count group.
conclusionIn this study, we conducted a comparative analysis between the transurethral catheterization method and the transperitoneal incision and direct injection method in animal bladder tumor models. Our findings provide evidence of the consistent effectiveness in constructing a stable model within the open group. Well-designed orthotopic animal models are essential.
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