原发性肝癌粘附分子基因的表达与化疗敏感的相关性研究

The correlation between adhesion molecules and chemos ensitivity in human hepatocellular carcinoma

目的 :探讨原发性肝癌粘附因子基因的表达与化疗敏感的相关性。方法 :取 6 4例肝癌切除组织行ATP -TCA法肿瘤体外药敏试验 ,以RT -PCR法半定量检测肝癌多种粘附因子、多药耐药基因表达情况。结果 :肝癌组织E -cadherin ,ICAM - 1,CD44,CD44V,α5,β1基因mRNA的表达量分别为 1 .2 4± 0 .5 4 ,0 . 96± 0 .37,0 . 6 2± 0 . 73,0 .86± 0 . 33,0 . 97± 0 .4 9,1 .4 1± 0 . 2 4 ,其中CD44与E -cadherin、β1的表达量有显著差异。多药耐药基因MDR1、MRP、GST -π、LRP、TOPOⅡ的表达量分别为 1 .17± 0 . 4 7、1 5. 9± 0 .33、1 .18± 0 . 4 8、1 .0 3± 0 . 4 8、1. 0 0± 0 . 31。各粘附分子基因的表达与多药耐药基因的表达有一定的相关性 :其中ICAM - 1、α5的表达与MDR1的表达呈正相关 ,E -cadherin、CD44的表达与MDR1的表达呈负相关 ;E -cadherin的表达与MRP的表达呈负相关 ;ICAM - 1的表达与LRP的表达呈正相关 ,E -钙粘连素、CD44的表达与LRP的表达呈负相关。肝癌化疗疗效与粘附分子基因mRNA表达量的关系 :在化疗有效组E -cadherin、CD44的mRNA表达量高于无效组 ,ICAM - 1、CD44V、α5、β1的mRNA表达量低于无效组。两组差别无显著意义。结论

AIM: To investigate the expression of adhes i on molecules in human hepatocellular carcinoma (HCC), and analyze the correlatio n between the expression of adhesion molecules and chemosensitivity. METHODS: The surgical and needle specimens from 64 patients were tested by the ATP-TCA. The expression of adhesion molecules and multi-drug resi stance genes (MDR) of tumor tis sues of 64 cases and adjacent tissues of 12 cases of HCC were detected with RT-P CR. RESULTS: The expression level of E-cadherin, ICAM-1, CD 44, CD 44V, α 5, β 1 in liver cancer tissues was 1.24±0.54, 0.96±0.3 7, 0.62±0 .73, 0.86±0.33, 0.97±0.49, 1.41±0.24, respectively. There was a signif icant difference between CD 44 and E-cadherin, β 1. The expression levels of MD R 1, MRP, GST-π, LRP, TOPO II mRNA in liver cancer tissues were 1.17±0.47, 1 .59±0.33, 1.18±0.48, 1.03±0.48, 1.00±0.31, respectively. The express ion level of adhesion molecule mRNA had positive Spearman correlation with the expression level of MDR mRNA. ICAM-1, α 5 had positive Spearman correlation w ith MDR 1. E-cadherin and CD 44 had negative Spearman correlation with MDR 1. E-cadherin had negative Spearman correlation with MRP. ICAM-1 had positive Spearman correlation with LRP. E-cadherin and CD 44 had negative Spearman c orrelation with LRP. CONCLUSION: The expression levels of adhesion molecule mRNA ha ve correlation with the effect of chemotherapy and the expression of MDR genes .