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Information Journal Paper

Title

POLYCLONAL KI-67 EXPRESSION IN TRANSITIONAL CELL CARCINOMA OF THE BLADDER

Pages

  5-11

Abstract

 Current methods of predicting prognosis in TRANSITIONAL CELL CARCINOMA (TCC) of the BLADDER fail to provide consistently reliable information about future tumor behavior. The POLYCLONAL ANTIBODY KI-67 recognizes a nuclear antigen exclusively present in cells in the cell cycle. The Ki-67 reactivity has been shown to correlate with conventional prognostic indicators in several tumors.We studied the proliferative activity of 40 cases of TRANSITIONAL CELL CARCINOMAs of the BLADDER using polyclonal Ki-67 and determined the proportion of cells undergoing active division. A significant correlation was observed between cells with activated DNA (Ki-67), histological GRADING and staging (P< 0.0001). The differences of mean Ki-67 index in the grade IIa versus IIb (using Pauwell classification) was also significant (P<0.044). Those cases which were limited to epithelial layer (stage Ta) show lower Ki-67 positivity than those infiltrating the lamina properia or deeper layers (stage T1, T2, T3 &T4) (P< 0.05). The differences between stage T1 versus T2 and T3 versus T4 were not statistically significant (P>0.05). The tumors with lymphatic and vascular invasion showed greater Ki-67 positivity than non-invasive tumors (P<0.01) These results suggest that the immunohistochemical assessment of the proliferative activity of transitional tumors of the BLADDER, using POLYCLONAL ANTIBODY KI-67 correlates with higher tumor stage and grade. Ki-67 staining provides an easy method of determining tumor cell turnover that might provides additional prognostic information. The results also indicate that the number of Ki-67 positive cells in grade II tumors may be useful aid in separating grade II TCC with favorable prognosis (IIa) from those with a poor clinical outcome (IIb).

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    APA: Copy

    TORABINEZHAD, S., & EMAMI, M.. (2005). POLYCLONAL KI-67 EXPRESSION IN TRANSITIONAL CELL CARCINOMA OF THE BLADDER. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES, 7(4 (24)), 5-11. SID. https://sid.ir/paper/358087/en

    Vancouver: Copy

    TORABINEZHAD S., EMAMI M.. POLYCLONAL KI-67 EXPRESSION IN TRANSITIONAL CELL CARCINOMA OF THE BLADDER. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES[Internet]. 2005;7(4 (24)):5-11. Available from: https://sid.ir/paper/358087/en

    IEEE: Copy

    S. TORABINEZHAD, and M. EMAMI, “POLYCLONAL KI-67 EXPRESSION IN TRANSITIONAL CELL CARCINOMA OF THE BLADDER,” IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES, vol. 7, no. 4 (24), pp. 5–11, 2005, [Online]. Available: https://sid.ir/paper/358087/en

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