p53凋亡激活蛋白2 mRNA表达水平与肝细胞癌患者术后早期复发风险的相关性

Correlation between ASPP2 mRNA expression and early postoperative recurrence risk in patients with liver cancer

目的:探讨p53凋亡激活蛋白2(ASPP2)mRNA表达水平与肝细胞癌(HCC)患者术后早期复发风险的相关性。方法:纳入2019年1月—2020年7月接受肝切除术的HCC患者122例,收集所有患者的临床实验室资料,采用荧光定量PCR法检测肝癌组织中ASPP2 mRNA相对表达量;随访1年,记录所有患者的复发情况,绘制生存分析曲线,分析不同ASPP2 mRNA表达水平的HCC患者术后复发风险;用多因素Cox回归分析影响HCC患者术后复发的危险因素。结果:截止2021年7月31日,共有40例患者出现复发,复发率为32.79%,据此分为复发组和非复发组,对比两组临床资料显示,复发组AFP>400 ng/mL比例、肝硬化比例、肿瘤低分化比例、白蛋白水平<35 g/L比例高于未复发组,ASPP2 mRNA相对表达量低于未复发组,差异有统计学意义(P<0.05);以ASPP2表达中位数为界值,绘制生存分析曲线,显示ASPP2 mRNA低表达组患者术后复发风险明显高于ASPP2 mRNA高表达组(χ^(2)=5.662,P=0.017);多因素Cox回归分析显示,AFP>400 ng/mL(HR=14.283)、肿瘤低分化(HR=13.269)、白蛋白水平<35 g/L(HR=11.279)是导致HCC术后复发的独立危险因素(P<0.05),ASPP2 mRNA相对表达量(HR=0.020)是导致HCC术后复发的独立保护性因素(P<0.05);限制性立方条样图显示,ASPP2 mRNA表达水平与HCC患者的早期复发风险呈显著线性关系(P>0.05)。结论:AFP>400 ng/mL、肿瘤低分化、白蛋白<35 g/L为HCC患者肝切除术后肿瘤复发风险的独立危险因素,ASPP2 mRNA低表达患者具有更高的术后复发风险。

Objective: To investigate the correlation between the mRNA expression level of p53 apoptosis stimulating proteins of p53(ASPP2) and the risk of early postoperative recurrence in patients with liver cancer. Methods: A total of 122 patients with hepatocellular carcinoma(HCC) who underwent hepatectomy in our hospital from January 2019 to July 2020 were included. The clinical laboratory data of all patients were collected, and the relative expression of ASPP2 mRNA in liver cancer tissue was detected by fluorescence quantitative PCR. expression. All patients were followed up for 1 year. The recurrence of all patients was recorded, and the survival analysis curve was drawn to analyze the postoperative recurrence risk of HCC patients with different ASPP2 mRNA expression levels. Multivariate Cox regression was used to analyze the risk factors of postoperative recurrence in HCC patients. Results: As of July 31, 2021, a total of 40 patients had a recurrence, and the recurrence rate was 32.79%. According to this, they were divided into a recurrence group and a non-recurrence group. A comparison of clinical data between the two groups showed that the proportion of AFP>400 ng/mL, the proportion of liver cirrhosis, the proportion of poorly differentiated tumors, and the proportion of albumin level <35 g/L in the recurrence group were higher than those in the non-recurrence group, and the relative expression of ASPP2 mRNA was lower than that in the non-recurrence group. The difference was statistically significant(P<0.05). By taking the median expression of ASPP2 as the cut-off value, the survival analysis curve showed that the risk of postoperative recurrence in patients with low ASPP2 mRNA expression was significantly higher than that in the high ASPP2 mRNA expression group(χ^(2)=5.662, P=0.017);multivariate Cox regression analysis showed that AFP>400 ng/mL(HR=14.283), poorly differentiated tumor(HR=13.269), and albumin level <35 g/L(HR=11.279) were independent risk factors for postoperative recurrence of HCC(P<0.05). ASPP2 The relative mRNA expression(HR=0.020) was an independent protective factor leading to postoperative recurrence of HCC(P<0.05). The restricted cubic bar plot showed that the expression level of ASPP2 mRNA was significantly linearly related to the risk of early recurrence in HCC patients(P<0.05). Conclusion: AFP>400 ng/mL, poorly differentiated tumor and albumin<35 g/L are independent risk factors for the risk of tumor recurrence after hepatectomy in HCC patients, and patients with low ASPP2 mRNA expression have a higher risk of postoperative recurrence.