肝细胞癌中内皮抑素和血管内皮生长因子的表达意义

目的 探讨肝细胞癌(HCC)中内皮抑素和VEGF的表达意义.方法 应用免疫组织化学方法检测2000年1月至2005年4月福建医科大学附属第二医院收集的46例HCC切除标本中内皮抑素和VEGF的表达,分析它们与HCC发生、发展的关系.采用随机资料t检验、配对t检验、Pearson相关分析、LSD-t检验或Tamhane's-t检验对结果进行分析.结果 内皮抑素主要见于HCC肿瘤组织和癌旁组织的细胞质.肿瘤组织、癌旁组织及正常肝组织的平均光密度(MOD)分别为0.11±0.02、0.14-4±0.01、0.09±0.01,积分光密度(IOD)分别为(1.8±1.2)×10~4、(3.8±2.2)×10~4、(0.9±0.4)×10~4.肿瘤组织表达较癌旁组织弱,两者的MOD和IOD比较差异有统计学意义(t=2.032,7.927,P<0.05).VEGF主要见于肿瘤组织和癌旁组织的细胞质,肿瘤组织、癌旁组织及正常肝组织的MOD分别为0.13±0.02、0.12±0.02、0.11±0.02,IOD分别为(5.4±3.1)×10~4、(3.9±2.5)×10~4、(3.0±3.0)×10~4,肿瘤组织表达较癌旁组织强,两者的MOD和IOD比较差异有统计学意义(t=5.871,8.723,P<0.05).内皮抑素与术后复发时间呈正相关(r=0.669,P<0.05).VEGF不影响术后复发时间(t=0.892,P>0.05).结论 内皮抑素在肿瘤组织中表达增强,肿瘤组织表达较癌旁组织弱,与HCC预后有关,可作为HCC的预后判断指标.VEGF在肿瘤组织中表达增强,但无法作为HCC独立预后指标.

Expression of endostatin and vascular endothelial growth factor in hepatocellular carcinoma

Objective To investigate the significance of the expression of endostatin and vascular endothelial growth factor(VEGF)in hepatocellular carcinoma(HCC).Methods The expression of endostatin and VEGF in 46 specimens which were collected at Second Affiliated Hospital of Fnjian Medical University from January 2000 to Apfil 2005 was detected by immunohistochemistry.The relationship between the expression of endostatin and VEGF and the progression of HCC was determined.All data were analyzed via t test,paired t test,Pearson rank correlation coefficient.LSD-t test or Tamhane's-t test.Results The expression of endostatin and VEGF was detected mainly in the cytoplasm of HCC cells and adjacent tissues.The values of mean optical density (MOD)of endostatin in HCC tissue,adjacent tissue and normal liver tissue were 0.11±0.02,0.14±0.0l and 0.09±0.01.respectively,and the values of integrated optical density(IOD)of endostatin in the above mentioned tissues were(1.8±0,2)×10~4,(3.8±2.2)×10~4 and(0.9±0.4)×10~4,respectively.The values of MOD and IOD of endostatin in HCC tissue were significantly lower than those in adjacent tissue(t=2.032,7.927,P＜0.05).The values of MOD of VEGF in HCC tissue,adjacent tissue and normal liver tissue were 0.13±0.02.0.12±0.02 and 0.11±0.02,respectively,and the values of IOD of VEGF were(5.4±3.1)×104,(3.9±2.5)×10~4 and(3.0 ±3.0)×10~4,respectively.The values of MOD and IOD of VEGF in HCC tissue were significantly hisher than those in adjacent tissue(t=5.871,8.723,P<0.05).There was positive correlation between the expression of endostatin and the recurrence of HCC(r=0.669,P<0.05),while VEGF had no influence on the recurrence of HCC(t=0.892,P>0.05).Conclusions Endostatin is mainly expressed in HCC tissue,but the level of its expression is lower in HCC tissue than in adjacent tissue.The expression of VEGF is higher in HCC tissue than in adjaneet tissue.Endostatin,rather than VEGF,may be used as a independent prognostic factor of the prognosis of patients with HCC.