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目的:研究食管癌组织中微小RNA-501-5p(miR-501-5p)与溶血磷脂酸受体1(LPAR1)mRNA的表达水平，并分析其与临床病理资料之间的关系。方法:选取2015年1月至2017年8月于滇南中心医院住院治疗的130例食管癌患者为研究对象。应用荧光实时定量PCR技术(qRT-PCR)检测食管癌组织和癌旁正常组织中miR-501-5p及LPAR1 mRNA的相对表达量，分析miR-501-5p和LPAR1 mRNA与患者临床病理资料的关系及两指标的相关性。采用Kaplan-Meier检验分析miR-501-5p和LPAR1 mRNA的表达与患者预后的关系。结果:食管癌组织中miR-501-5p的相对表达量高于癌旁组织，LPAR1 mRNA的相对表达量低于癌旁组织，差异有统计学意义(n P<0.05)。食管癌组织中miR-501-5p和LPAR1 mRNA的相对表达量与肿瘤TNM分期、分化程度、淋巴结转移有关(n P0.05)。相关性分析结果显示，食管癌组织中miR-501-5p和LPAR1 mRNA的表达呈负相关(n r＝-0.632，n P<0.05)。Kaplan-Meier检验结果显示，高miR-501-5p表达组患者3年总体生存率(OS)低于低表达组，高LPAR1 mRNA表达组患者3年OS高于低表达组，差异有统计学意义(n P<0.05)。n 结论:食管癌组织中miR-501-5p表达水平高于癌旁组织、LPAR1 mRNA表达水平低于癌旁组织，并与肿瘤TNM分期、分化程度、淋巴结转移及预后有关，有望成为食管癌诊断、治疗及预后评估的生物标志物。“,”Objective:To study the expression levels of microRNA-501-5p (miR-501-5p) and lysophosphatidic acid receptor 1 (LPAR1) mRNA in esophageal cancer, and to analyze their relationship with clinical pathological data.Methods:From January 2015 to August 2017, 130 patients with esophageal cancer who were hospitalized in Southern Yunnan Central Hospital were selected. Quantitative real-time polymerase chain reaction (qRT-PCR) was used to detect the relative expression of miR-501-5p and LPAR1 mRNA in esophageal cancer tissues and adjacent normal tissues; the relationship between miR-501-5p and LPAR1 mRNA and clinical pathological data and the correlation between the two indexes were analyzed. Kaplan Meier test was used to analyze the relation between prognosis and survival of patients.Results:The relative expression of miR-501-5p in esophageal cancer tissues was higher than that in adjacent tissues, and the relative expression of LPAR1 mRNA was lower than in adjacent tissues (n P<0.05). The relative expression of miR-501-5p and LPAR1 mRNA in esophageal cancer tissues were related to tumor tumor node metastasis (TNM) stage, differentiation degree, and lymph node metastasis (n P0.05). Correlation analysis showed that the expression of miR-501-5p and LPAR1 mRNA in esophageal cancer tissues was negatively correlated (n r=-0.632, n P<0.05). Kaplan Meier test showed that the 3-year overall survival rate of patients in high miR-501-5p expression group was lower than that of low expression group, and the 3-year overall survival rate of patients in high LPAR1 mRNA expression group was higher than that of low expression group (n P<0.05).n Conclusions:The expression level of miR-501-5p in esophageal cancer is higher than that in adjacent tissues, and the expression level of LPAR1 mRNA is lower than in adjacent tissues. They are related to tumor TNM stage, differentiation degree, and lymph node metastasis and expected to become new biomarkers in the diagnosis and treatment of esophageal cancer.