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Immunohistochemical analysis of p53, CD10 and Ki67 expression as prognostic biomarkers in urinary bladder carcinomas correlating with age, histomorphology, grade and stage: An institutional study of one and half year


1 Department of Pathology, IMS and SUM Hospital, S‘O’A (Deemed to be University), Bhubaneswar, Odisha, India
2 Department of Urology, IMS and SUM Hospital, S‘O’A (Deemed to be University), Bhubaneswar, Odisha, India

Correspondence Address:
Pranita Mohanty,
Department of Pathology, IMS and SUM Hospital, S‘O’A (Deemed to be University), Bhubaneswar - 751 003, Odisha
India
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jmau.jmau_45_21

Background: Bladder carcinoma ranks tenth among all cancers worldwide predominantly affecting elderly males. Common risk factors being cigarette smoke and aniline dyes. Immunohistochemical markers play a pivotal role for its diagnosis and prognosis. Aim: To analyze the immunohistochemical expression of p53, CD10, Ki-67 in bladder cancers correlating with demographic features, pathological grade, and stage and to establish as prognostic biomarkers. Materials and Methods: Surgical samples of total of 70 cases of bladder tumor were collected, processed, stained in routine hematoxylin and eosin followed by immunohistochemistry of p53, CD10, and Ki67 markers performed on randomly selected 30 cases only. Results: Out of 70 cases 69 cases (98.6%) were carcinomas; urothelial carcinoma being 71.4% (n = 50) with male: female ratio = 7.7:1 and mean age = 61.81 ± 12.83 years. Out of 30 cases, p53 was positive in 50% of cases, 30% - negative and 20% - equivocal. p53 positive expression pattern was more in high grade (HG) than low grade (LG). Significant difference was observed in the mean p53 scoring (%) and different stages (P = 0.043). CD10 expression was negative in 56.6%, (1+) in 16.6%, and (2+) in 26.6% of cases and significant difference in CD 10 expression was observed between the high and LG (P = 0.001). Ki-67 labeling index was appreciably higher in HG than the LG tumor (32.49% ± 24.35%; 6.86% ± 8.1%). Majority of Ki-67 expression was observed in stage pT2, followed by the pT1 stage. Conclusion: Cocktail of p53, CD10, and Ki67 is useful as potential prognostic markers in bladder cancers.


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    -  Mohapatra AS
    -  Mohanty P
    -  Pradhan S
    -  Sabat DK
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