@article {NAGAHAMA203, author = {ATSUFUMI NAGAHAMA and MASAKAZU YASHIRO and TOSHIYUKI KAWASHIMA and KOSUKE NAKAJO and HIROKI MORISAKO and TAKEHIRO UDA and KENTARO NAITO and TSUTOMU ICHINOSE and KENJI OHATA and TAKEO GOTO}, title = {Combination of p53 and Ki67 as a Promising Predictor of Postoperative Recurrence of Meningioma}, volume = {41}, number = {1}, pages = {203--210}, year = {2021}, doi = {10.21873/anticanres.14766}, publisher = {International Institute of Anticancer Research}, 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.}, issn = {0250-7005}, URL = {https://ar.iiarjournals.org/content/41/1/203}, eprint = {https://ar.iiarjournals.org/content/41/1/203.full.pdf}, journal = {Anticancer Research} }