title: Ki-67 labelling index in human brain tumours.
abstract: The proliferative potential in 157 brain tumours was investigated using Ki-67 labelling index (Ki-67LI). There were 46 patients with low grade gliomas (Al & All), 82 with high grade gliomas (AIII & AIV) and 29 with metastatic tumours. Tumour fragments used for assessment of Ki-67LI were fixed in formalin. Ki-67 antigen was visualised on paraffin sections using DAKO Rabbit Anti-Human Ki-67 antigen. The Ki-67LI was calculated as the percentage of Ki-67 labelled cells. The tumours showed variability in the Ki-67LI values. Significantly higher mean Ki-67LI was found for highly malignant (AIII & AIV) than for low grade gliomas (Al & All). For metastatic tumours, the mean values of Ki-67LI were significantly higher than for gliomas. Moreover, Ki-67LI of metastatic tumours were significantly higher than for high grade gliomas.
authors.affiliation: Department of Radiation Oncology, Centre of Oncology, Kraków, Poland. Joaniemiec@inetia.pl
authors.forename: J
authors.initials: J
authors.lastname: Niemiec
mesh_terms: D000328:Adult; D014408:Biomarkers, Tumor / Q000032:analysis*; D001932:Brain Neoplasms / Q000737:chemistry* / Q000473:pathology / Q000601:surgery; D005260:Female; D005910:Glioma / Q000737:chemistry* / Q000473:pathology / Q000601:surgery; D006801:Humans; D007150:Immunohistochemistry; D019394:Ki-67 Antigen / Q000032:analysis*; D008297:Male; D008875:Middle Aged; D009362:Neoplasm Metastasis
chemical_list: D014408:Biomarkers, Tumor; D019394:Ki-67 Antigen