国际肿瘤学杂志
國際腫瘤學雜誌
국제종류학잡지
JOURNAL OF INTERNATIONAL ONCOLOGY
2015年
3期
169-171
,共3页
神经胶质瘤%O6-甲基鸟嘌呤DNA甲基转移酶%细胞增殖相关核蛋白Ki-67%肿瘤抑制蛋白质p53
神經膠質瘤%O6-甲基鳥嘌呤DNA甲基轉移酶%細胞增殖相關覈蛋白Ki-67%腫瘤抑製蛋白質p53
신경효질류%O6-갑기조표령DNA갑기전이매%세포증식상관핵단백Ki-67%종류억제단백질p53
Glioma%O6-methylguanine DNA methyltransferase%Cell proliferation-related nuclear pro-tein Ki-67%Tumor suppressor protein p53
目的:探讨DNA修复酶O6-甲基鸟嘌呤DNA甲基转移酶( MGMT)、细胞增殖相关核蛋白Ki-67和P53蛋白在脑胶质瘤中的表达情况与分级的关系及其临床意义。方法采用免疫组织化学SP法检测61例脑胶质瘤标本和16例外伤内减压正常脑组织标本MGMT、Ki-67和P53蛋白的表达情况。结果 MGMT(19.67%∶0,χ2=3.729,P=0.062)、Ki-67(39.34%∶0,χ2=5.722,P=0.016)和P53蛋白(27.87%∶0,χ2=9.146,P=0.002)在胶质瘤中的表达和正常脑组织中的表达差异均有统计学意义,且Ki-67在高级别胶质瘤(Ⅲ~Ⅳ级)与低级别胶质瘤(Ⅰ~Ⅱ级)差异有统计学意义(14∶10,χ2=11.718, P=0.001)。MGMT、P53未发现明显差异。结论 MGMT蛋白表达可作为胶质瘤检测的生物学标志物;Ki-67蛋白与病理分级存在正相关,可作为脑胶质瘤病理分级的参考指标;P53蛋白可能为胶质瘤治疗的潜在靶点。
目的:探討DNA脩複酶O6-甲基鳥嘌呤DNA甲基轉移酶( MGMT)、細胞增殖相關覈蛋白Ki-67和P53蛋白在腦膠質瘤中的錶達情況與分級的關繫及其臨床意義。方法採用免疫組織化學SP法檢測61例腦膠質瘤標本和16例外傷內減壓正常腦組織標本MGMT、Ki-67和P53蛋白的錶達情況。結果 MGMT(19.67%∶0,χ2=3.729,P=0.062)、Ki-67(39.34%∶0,χ2=5.722,P=0.016)和P53蛋白(27.87%∶0,χ2=9.146,P=0.002)在膠質瘤中的錶達和正常腦組織中的錶達差異均有統計學意義,且Ki-67在高級彆膠質瘤(Ⅲ~Ⅳ級)與低級彆膠質瘤(Ⅰ~Ⅱ級)差異有統計學意義(14∶10,χ2=11.718, P=0.001)。MGMT、P53未髮現明顯差異。結論 MGMT蛋白錶達可作為膠質瘤檢測的生物學標誌物;Ki-67蛋白與病理分級存在正相關,可作為腦膠質瘤病理分級的參攷指標;P53蛋白可能為膠質瘤治療的潛在靶點。
목적:탐토DNA수복매O6-갑기조표령DNA갑기전이매( MGMT)、세포증식상관핵단백Ki-67화P53단백재뇌효질류중적표체정황여분급적관계급기림상의의。방법채용면역조직화학SP법검측61례뇌효질류표본화16예외상내감압정상뇌조직표본MGMT、Ki-67화P53단백적표체정황。결과 MGMT(19.67%∶0,χ2=3.729,P=0.062)、Ki-67(39.34%∶0,χ2=5.722,P=0.016)화P53단백(27.87%∶0,χ2=9.146,P=0.002)재효질류중적표체화정상뇌조직중적표체차이균유통계학의의,차Ki-67재고급별효질류(Ⅲ~Ⅳ급)여저급별효질류(Ⅰ~Ⅱ급)차이유통계학의의(14∶10,χ2=11.718, P=0.001)。MGMT、P53미발현명현차이。결론 MGMT단백표체가작위효질류검측적생물학표지물;Ki-67단백여병리분급존재정상관,가작위뇌효질류병리분급적삼고지표;P53단백가능위효질류치료적잠재파점。
Objective To detect the expression of DNA repair enzyme O6-methylguanine DNA methyl-transferase(MGMT),cell proliferation-related nuclear protein(Ki-67)and P53 protein in gliomas,and inves-tigate the relationship and clinical significance among them and gloma grade. Methods 61 cases of brain glio-ma specimes and 16 cases of internal decompression of brain trauma were used to detect the expression of MGMT,Ki-67 and P53 by using immunohistochemical SP method. Results MGMT protein expression (19. 67%∶0,χ2 =3. 729,P=0. 062),Ki-67 protein expression(39. 34% ∶0,χ2 =5. 722,P=0. 016)and P53 protein expression(27. 87% ∶0,χ2 =9. 146,P=0. 002)showed significant differences in gliomas com-pared to normal brain tissues,the expression of Ki-67 was significantly higher in high-grade gliomas(Ⅲ-Ⅳ) than that in low-grade gliomas(Ⅰ-Ⅱ)(14 ∶10,χ2 =11. 718,P =0. 001). No significant difference was found between the MGMT and P53. Conclusion MGMT protein can be used as a biomarker in gliomas detec-tion;Ki-67 has a positive correlation with tumor grade,and can be used as a reference indicator of pathological grade;P53 protein expression may be used as a potential target for the treatment of gliomas.