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Tumor Discovery                                                        Energy metabolism in bladder cancer




                            A                                 B














                            C                                 D














                            E                                  F















            Figure  1. Urinary bladder photomicrographs of low-grade pTa group (A and B), high-grade pTa group (C and D), and high-grade pT1 group
            (E and  F). (A  and B) Urothelial cells presenting overall orderly appearance with minimal variability in architecture and cytological features, no nuclear
            hyperchromasia, and infrequent mitotic figures. (C and D) Significant cell pleomorphism, notable cell atypia (star), and several mitotic figures. (E and  F)
            Basement membrane disruption (asterisk) with neoplastic cells’ invasion in the lamina propria. Abbreviations and symbols: Ur: Urothelium; V: Blood
            vessel; white arrow, conjunctive-vascular axis; black arrow, basal membrane integrity; star, cell atypia; asterisk, basement membrane disruption. Scale bars:
            100 μm (panels A, C, and E), and 50 μm (panels B, D, and F).

            cohort of normal bladder tissue samples and low-grade   pTa and pT1 groups for  β-F1-ATP synthase, HADHSC,
            pTa tumors, as shown in  Figures  2A-D,  3A,  3D,  3G,   and PDH, as indicated in  Figure  4A-C, respectively.
            and  3J, respectively. On the other hand, the high-grade   Interestingly, CS protein levels were significantly higher in
            pTa  group  recorded  moderate  immunoreactivity  level   normal group when compared to other groups (Figure 4D).
            for these proteins, as shown in  Figure  3B,  E,  H,  and  K,   Furthermore, no statistically significant differences in CS
            whereas the pT1 group recorded weaker immunoreactivity   protein  levels  were  observed  among  the  low-grade  pTa,
            patterns for the same set of proteins, as evidenced in   high-grade pTa, and high-grade pT1 groups, as shown in
            Figure 3C, F,  I, and L. The mean immunolabelled antigen   Figure 3D.
            intensities in urinary bladder samples from the normal,
            low-grade pTa, high-grade pTa, and high-grade pT1   3.3. The glycolytic pathway prevailed in high-grade
            groups are tabulated in Table 2.                   pTa and high-grade pT1 bladder tumors
              The normal and low-grade pTa groups recorded protein   Intense immunoreactivity levels were observed for
            levels significantly higher than those of the high-grade   GLUT1 and PFK in the high-grade pTa and high-


            Volume 3 Issue 1 (2024)                         5                          https://doi.org/10.36922/td.2290
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