Relationship between labeling indices of KI-67 and brdurd in human malignant tumors

作者：Kohsuke Sasaki, Kouji Matsumura, Tatsuo Tsuji, Fumihiko Shinozaki, Manabu Takahashi · 发表于：Cancer · 年份：1988 · DOI：10.1002/1097-0142(19880901)62:5<989::aid-cncr2820620525>3.0.co;2-u · 被引用次数：175 · 研究领域：Monoclonal and Polyclonal Antibodies Research、Protein purification and stability、Advanced Biosensing Techniques and Applications

The relationship between labeling indices of Ki-67 reactive antigen expressed by cycling cells and BrdUrd incorporated into S-phase cells was investigated in 20 patients with malignant tumors. Both of the labeling indices varied greatly from patient to patient; the labeling index of Ki-67 ranged from 37.5% to 1.9% with an average value of 16%, and the BrdUrd labeling index ranged from 23.4% to 1.6% with an average of 9.3%. The Ki-67 labeling index was higher than the BrdUrd labeling index. In general, the values of the Ki-67 labeling index were parallel to those of the BrdUrd labeling index, and the relation Y = 1.59X + 1.15 (r = 0.89) was obtained. In human solid tumors, therefore, the growth fraction can be easily estimated from the S-phase fraction size, and vice versa.