摘要
使用单克隆抗体测定42例骨肉瘤化疗前后石蜡包埋切片的增殖细胞核抗原(PCNA),发现免疫反应阳性颗粒集中在细胞核仁区。PCNA标记指数分布为21.1%~68.5%(平均42%),以均数42%分为高PCNA指数组(LI≥42%;n=25)和低PCNA指数组(LI<42%;n=17),发现高指数组肿瘤直径大于低指数组,而患者年龄、性别、肿瘤部位、组织类型及肺转移,两组统计无差异,但3年生存率,高指数组明显低于低指数组。
Forty-twospecimensofparafinembeddedosteosarcomatissuewereevaluatedforcelproliferatingactivitybyusingamonoclonalantibodypre-andpost-chemotherapy.TheresultsofthePC-NAstainingwereshowninalthespecimensandconfinedtothenucleiofsarcomacels.TheproportionofPCNAlabeling-index(LI)rangedfrom21.1%to68.5%(median42.0%).ItwasfoundthatthehighPCNA-LIgrouphadsignificantlylargertumorsizethanthoseofthelowPCNA-LIgroupontheaveragelevel(42.0%).Therewerenosignificantdiferencesintheotherfactors.includingage,sex,localization,histologictypesandlungmetastases.PCNA-LIwasdemonstratedinrelationtochemotherapysensitivity.Forananalysisofthedisease-freesurvivalin42patientswithclinicalfolow-updata,the2groupsofpatientswithahigherandlowerPCNA-LIthantheaveragelevels(42.0%)werecompared.Thedisease-freesurvivalrateaftersurgeryinthePCNA-LIhighergroupwassignifi-cantlylowerthanthePCNA-LIlowergroup(P<0.001).
出处
《中华骨科杂志》
CAS
CSCD
北大核心
1996年第5期321-323,共3页
Chinese Journal of Orthopaedics
关键词
增殖细胞核抗原
骨肉瘤
骨肿瘤
药物疗法
Proliferatingcelnuclerantigen(PCNA)ImmunocytochemistryOsteosarcoma