[Ki-67 expression as a predictor of the effectiveness of radiotherapy and of outcome in locally advanced squamous cell carcinoma of the uterine cervix (immunohistochemical study)].
Retrospective immunohistochemical assay of antigen Ki-67 in tumor tissue was carried out prior to and in the course of radiotherapy (TFD - 14-20Gy) in 89 patients with squamous cervical carcinoma. Index of proliferation, i.e. number of Ki-67-positive cells per 1,000 of all cells, was found. Prior to therapy, the index was on the average 49.7%, during irradiation it decreased and its mean value was 24%. There was a correlation between proliferation level tumor progression and the former influenced the immediate effect of radiotherapy. Ki-67 expression in cervical carcinoma exceeded the median. It correlated with unfavorable end-results and was followed by higher relapse incidence. No significant proliferation index difference was reported visa-vis histological pattern, tumor cell differentiation or age. Yet, the drop in proliferative activity during therapy was significant, regardless of outcome. Our results pointed to the high prognostic significance of proliferative activity as far as therapy and outcome were concerned.
M E
ME
Kuznetsova
K M
KM
Pozharisskiĭ
V L
VL
Vinokurova
G M
GM
Zharinov
N Iu
NIu
Neklasova
D000328:Adult; D000368:Aged; D014408:Biomarkers, Tumor / Q000378:metabolism*; D002294:Carcinoma, Squamous Cell / Q000378:metabolism* / Q000473:pathology / Q000532:radiotherapy*; D005260:Female; D015972:Gene Expression Regulation, Neoplastic; D006801:Humans; D007150:Immunohistochemistry; D019394:Ki-67 Antigen / Q000378:metabolism*; D008875:Middle Aged; D011237:Predictive Value of Tests; D012189:Retrospective Studies; D016896:Treatment Outcome; D002583:Uterine Cervical Neoplasms / Q000378:metabolism* / Q000473:pathology / Q000532:radiotherapy*
D014408:Biomarkers, Tumor; D019394:Ki-67 Antigen