VEGF、Ets-1在骨巨细胞瘤中的表达及意义(1)
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[摘要] 目的:观察骨巨细胞瘤(GCT)中血管内皮生长因子(vascular endothelium growth factor, VEGF)、转录调控因子(Ets-1)的表达,探讨其临床意义,并作相关性研究。方法:30例骨巨细胞瘤标本分别按照Jaffe病理分级、临床分期、有无复发进行分组。应用S-P免疫组化方法检测标本组中的VEGF和Ets-1的表达。结果:30例标本中复发10例,复发率为33.3%,VEGF和Ets-1在GCT中的阳性表达率分别为70%(21/30)和36.7%(11/30),Ets-1和VEGF在临床分期及预后各组中的表达差异有统计学意义(P<0.05)。而在Jaffe病理分级组中的表达差异无统计学意义(P>0.05)。结论:VEGF和Ets-1在GCT中的表达与GCT的临床分期和复发有关,有助于评估肿瘤的预后。
[关键词] 骨巨细胞瘤;免疫组化;VEGF;Ets-1
[中图分类号] R738.1[文献标识码]A [文章编号]1673-7210(2009)03(a)-014-03
Expression and significance of VEGF and Ets-1 in giant cell tumor of bone
ZHANG Yu, LU Zhi*, LIU Xiao-li, LEI Lei, HAN Peng-fei
(Department of Orthopaedics, the Second Hospital of Shanxi Medical University, Taiyuan030001, China)
[Abstract] Objective: To explore the expression of vascular endothelium growth factor and Ets-1 in giant cell tumor of bone. Methods: 30 specimens were divided according to staging system and Jaffe pathological gradation of GCT and whether recurred or metastasized. VEGF and Ets-1 protein from tumor specimen were examined by immunohistochemistry S-P technique. Results: The level of the expression of VEGF and Ets-1 in giant cell tumor of bone was 70% (21/30) and 36.7% (11/30) respectively, the positive expression of VEGF and Ets-1 was relevant to the clinical stages and prognosis (P<0.05). However, there was no relativity between positive expression of Ets-1 and VEGF and pathological gradation of GCT(P>0.05). Conclusion: Expression of Ets-1 and VEGF in GCT is highly related to clinical stages and Prognosis but not to its pathological gradation.
[Key words] Giant cell tumor of bone; Immunohistochemistry; VEGF; Ets-1
骨巨细胞瘤(giant cell tumor of bone, GCT)是一种潜在的恶性或介于良恶性之间的溶骨性肿瘤,术后复发率可达50%以上,1%~6%的患者可以发生肺转移[1],少数患者甚至可发生肉瘤变,能否正确评估GCT的生物学行为将直接影响临床的治疗方式和效果。传统的评估标准包括Jaffe(1940)的组织学分级、Campanicci(1975)的影像学分级以及Enneking(1980)临床分期。近几年,许多与肿瘤相关的酶、细胞因子、受体、基因及其表达物等被发现和认识,并且被广泛应用到GCT的生物学行为研究中,从而为发现新指标,确立新标准,更为客观、准确地评价和预测GCT的生物学行为开拓了广阔的空间。我们检测骨巨细胞瘤中血管内皮生长因子(vascular endothelium growth factor, VEGF)和Ets-1的表达,并探讨其与预后及临床的关系。
1 材料与方法
1.1 材料
选取我院病理科2001~2007年经手术切除的骨巨细胞瘤标本30例,所有标本均经10%甲醛固定、石蜡包埋。患者年龄19~60岁,男14例,女16例。病理分级Ⅰ~Ⅱ级9例,Ⅲ级21例;临床分期皮质完整14例,皮质不完整16例;术后复发10例,无复发20例。
1.2 免疫组化
一抗是鼠抗人VEGF单克隆抗体(北京中杉金桥生物技术公司)和鼠抗人Ets-1单克隆抗体及S-P试剂盒(福建迈新生物技术公司),所有试剂均为即用型,采用S-P免疫组织化学技术。
1.3 阳性结果判定 ......
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