Journal: The American journal of pathology
Article Title: Urothelium-Specific Expression of Mutationally Activated Pik3ca Initiates Early Lesions of Noninvasive Bladder Cancer.
doi: 10.1016/j.ajpath.2023.07.001
Figure Lengend Snippet: Figure 4 Upk2-Cre/Pik3caH1047R mice do not show significant differ- ences in susceptibility to N-butyl-N-(4-hydroxybutyl)nitrosamine (BBN), as measured by urothelial thickness. Six-montheold control and mutant mice with two alleles of Pik3caH1047R were given 0.01% BBN in their drinking water for 10 weeks. These mice were then compared with the 6-montheold mice previously assessed, which were not exposed to BBN. A: Hematoxylin and eosin (H&E) staining shows slightly thicker urothelium of mutant mice with similar morphology to control after exposure to BBN. B: Urothelial thickness (mm) measurements show no significant difference driven by Pik3ca mutation in combination with BBN exposure [P Z 0.3941; two-way analysis of variance (ANOVA) with interaction]. The two-way ANOVA model was then refit without the interaction term. The marginal test for BBN is not significant (P Z 0.2097); however, the marginal test for Pik3caH1047R
Article Snippet: Urothelial Thickness and Histologic Scoring Urothelial thickness was measured using cellSens Entry 1.13 imaging software (Olympus, Center Valley, PA) on hematoxylin and eosin sections.
Techniques: Control, Mutagenesis, Staining