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多结节性肝癌克隆起源的判定及其临床意义
The Detection of Clone Oringins in Multinodular Hepatocellullar Carcinoma and It’s Clinical Significance
【作者】 尚丽明;
【导师】 黎乐群;
【作者基本信息】 广西医科大学 , 外科学肝胆, 2004, 硕士
【摘要】 目的 应用PCR-SSCP技术检测P53、 N-ras、TGFα、P16作为基因标记物在判断多结节性肝癌克隆起源中的价值及临床意义。方法 应用银染PCR-SSCP技术比较23例多结节性肝癌组织各结节中P53、 N-ras、TGFα、P16基因的表达情况并进行统计学处理。20例单发肿瘤病人的两块不相连的肿瘤组织作为阳性对照组,10例健康肝组织作为正常对照组。结果 P53、N-ras、P16、TGFα基因突变在多结节肝癌组和阳性对照组中的表达阳性率基本一致(P> 0.05),两组差异无显著性。23例多结节性肝癌经P53,N-ras,P16, TGFα基因变异联合判断多中心性发生11例,单中心性发生12例。在本组判定为多中心性起源的多结节肝癌中多合并有慢性肝炎或肝硬化背景(90.91%),而在单中心起源的多结节性肝癌中,无肝病背景的病例占很大比例(66.67%),两组比较差异有显著性(P<0.05),且多中心性起源的多结节肝癌复发率(18.18%)明显低于单中心性肝癌的复发率(75%),两者比较差异有显著性(P<0.05)。结论 1.应用PCR-SSCP方法来检测P53、N-ras、P16、 TGFα在多结节性肝癌中不同结节之间的表达情况可以鉴别其克隆起源方式;2.由于多结节性肝癌存在着不同的克隆起源,其中多中心性肝癌治疗效果较好,因此,在临床上应用该方法并结合患者的临床资料有助于治疗方法的选择及评价预后。
【Abstract】 Objectives To detect the expressions of P53、 N-ras、TGFα、P16 genes usingPCR-SSCP and assess it’s value and clinical significance in multinodular hepatocellullar. Methods PCR-SSCP was used to detect the expressions of P53、 N-ras、TGFα、P16 genes in variable nodules in 23 patients with multinodular hepatocellullar carcinomas(MC Gorup), two pieces of inconsecutive tumor tissues in 20 patients with single nodular hepatocellullar(SC Group) and normal hepatic tissues in 10 healthy people (NC Group) respectively, statistical analysis was performed using SPSS.Results The expressions of P53, N-ras, P16 and TGFαmutation genes had no differences in three groups(P> 0.05). In MC group, 11 cases were dignosised multicentric origins and 13 were single centric by multigenic detections; there had a higher rate of complicated lesions with chronic hepatitis and cirrhosis and a lower recurrence rate than those in SC group and NC group(P<0.05). Conclusions The detections of P53, N-ras,P16 and TGFαgenes using PCR-SSCP can identify the clone origins in multinodular hepatocellular carcinomas. The multicentric hepatocellular carcinomas has a better theraputic effect than that in monocentric hepatocellular carcinomas . Combined with clinical data, PCR-SSCP is useful for the selections of therapy and assessments of prognosis.
【Key words】 multicentric hepatocellullar carcinoma; clone origin; PCR-SSCP;
- 【网络出版投稿人】 广西医科大学 【网络出版年期】2004年 04期
- 【分类号】R735.7
- 【下载频次】93