Summary
The monoclonal antibody Ki-67 recognizes a nuclear antigen which is expressed during the G1, S, G2 and M phases of the cell cycle. Immunostaining of frozen biopsy material thus presents a convenient and rapid method for the estimation of the growth fraction in human neoplasia. This report summarizes the results obtained in 178 neurosurgical biopsies. The highest incidence of Ki-67 positive nuclei was observed in 8 metastatic carcinomas (mean: 20%) and in 53 cases of glioblastoma multiforme (10%). Glioblastomas showed considerable variation, the fraction of stained nuclei ranging from 1 to 28%. For astrocytomas and oligodendrogliomas we found a close correlation between the Ki-67 index and the histological grade in agreement with known biological behaviour. In anaplastic gliomas (WHO grade III) the upper limit was 11%, in grade II gliomas, 6%. Juvenile pilocytic astrocytomas and pituitary adenomas showed mean staining indices of approximately 1%. In 13 meningiomas the mean Ki-67 index was 1% but rose to 5% in recurrent and anaplastic meningiomas. Assessment of the growth fraction in human brain tumours by immunostaining with Ki-67 could become an important tool in the prediction of the biological behaviour of nervous system neoplasms and the planning of adjuvant therapy.
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References
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© 1988 Springer-Verlag
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Shibata, T., Burger, P.C., Kleihues, P. (1988). Ki-67 Immunoperoxidase Stain as Marker for the Histological Grading of Nervous System Tumours. In: Isamat, F., Jefferson, A., Loew, F., Symon, L. (eds) Proceedings of the 8th European Congress of Neurosurgery, Barcelona, September 6–11, 1987. Acta Neurochirurgica, vol 43. Springer, Vienna. https://doi.org/10.1007/978-3-7091-8978-8_22
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DOI: https://doi.org/10.1007/978-3-7091-8978-8_22
Publisher Name: Springer, Vienna
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