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  • Title: Comparative assessment of proliferating cell nuclear antigen immunostaining and of nucleolar organizer region staining in transitional cell carcinomas of the urinary bladder. Correlation with other conventional prognostic pathologic parameters.
    Author: Skopelitou A, Korkolopoulou P, Papanicolaou A, Christodoulou P, Thomas-Tsagli E, Pavlakis K.
    Journal: Eur Urol; 1992; 22(3):235-40. PubMed ID: 1361436.
    Abstract:
    The expression of two cell proliferation indices, the proliferating cell nuclear antigen (PCNA), using the monoclonal antibody PC-10 in the immunoperoxidase method, and the nucleolar organizer regions (NORs), using the colloid silver nitrate staining technique, was assessed in formalin-fixed paraffin-embedded material of 50 transitional cell urinary bladder carcinomas. A relationship was found between the histologic grade and each of the two indices used. A significant difference was observed, particularly between carcinomas of grade II and III (p < 0.001). A relationship was also demonstrated between each of PC-10 and AgNOR scores and the clinical stage, but it was attributed mostly to the close correlation of the latter with the histologic grade of these tumors. The linear correlation coefficient between PC-10 and AgNOR scores was 0.757 (p < 0.001). Our results suggest that PC-10 and AgNOR scores may be important prognostic indices in urinary bladder cancer.
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