Combination of p53 and ki67 as a promising predictor of postoperative recurrence of meningioma

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Abstract

Background: Meningioma is a common intracranial tumor originating from arachnoid cap cells. Meningiomas are generally benign tumors curable by one-time resection. However, some meningiomas regrow and invade into the dura mater, and thus frequently require additional treatment. A useful marker to predict the regrowth of meningioma is desired. This study aimed to clarify the significance of p53 and Ki67 for postoperative recurrence of meningioma. Materials and Methods: The expression of p53 and Ki67 in 215 intracranial or intraspinal meningiomas was investigated by immunohistochemistry. Results: Of the 215 meningiomas, 35 cases (16.3%) were p53-positive and 49 cases (22.8%) were Ki67-positive. Multivariate analysis revealed Ki67 and p53 status as being significantly correlated with recurrence. Positivity for either Ki67- or p53 was significantly associated with poor recurrence-free survival. Conclusion: Combined p53 and Ki67 status might represent a useful independent predictive marker for recurrence of meningioma.

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NAGAHAMA, A., YASHIRO, M., KAWASHIMA, T., NAKAJO, K., MORISAKO, H., UDA, T., … GOTO, T. (2021). Combination of p53 and ki67 as a promising predictor of postoperative recurrence of meningioma. Anticancer Research, 41(1), 203–210. https://doi.org/10.21873/anticanres.14766

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