TY - JOUR T1 - Combination of p53 and Ki67 as a Promising Predictor of Postoperative Recurrence of Meningioma JF - Anticancer Research JO - Anticancer Res SP - 203 LP - 210 DO - 10.21873/anticanres.14766 VL - 41 IS - 1 AU - ATSUFUMI NAGAHAMA AU - MASAKAZU YASHIRO AU - TOSHIYUKI KAWASHIMA AU - KOSUKE NAKAJO AU - HIROKI MORISAKO AU - TAKEHIRO UDA AU - KENTARO NAITO AU - TSUTOMU ICHINOSE AU - KENJI OHATA AU - TAKEO GOTO Y1 - 2021/01/01 UR - http://ar.iiarjournals.org/content/41/1/203.abstract N2 - 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. ER -