Esophageal squamous cell carcinoma is the sixth most lethal cancer worldwide and the fourth most lethal cancer in China. Tissue-specific transplantation antigen P35B codifies the enzyme GDP-d-mannose-4,6-dehydratase, which participates in the biosynthesis of GDP-l-fucose. GDP-l-fucose is an important substrate involved in the biosynthesis of many glycoproteins. Cancer cells are often accompanied by the changes in glycoprotein structure, which affects the adhesion, invasion, and metastasis of cells. It is not clear whether tissue-specific transplantation antigen P35B has any effect on the development of esophageal squamous cell carcinoma. We used an immunohistochemical method to assess the expression of tissue-specific transplantation antigen P35B in 104 esophageal squamous cell carcinoma samples. The results showed tissue-specific transplantation antigen P35B expression was associated with some clinical features in patients, such as age ( P = .017), clinical stage ( P = .010), and lymph node metastasis ( P = .043). Kaplan-Meier analysis and log-rank test showed that patients with esophageal squamous cell carcinoma having high tissue-specific transplantation antigen P35B expression had a worse prognosis compared to the patients with low expression ( P = .048). Multivariate Cox proportional hazards regression model showed that high expression of tissue-specific transplantation antigen P35B could predict poor prognosis for patients with esophageal squamous cell carcinoma independently. In conclusion, abnormal fucosylation might participate in the progress of esophageal squamous cell carcinoma and tissue-specific transplantation antigen P35B may serve as a novel biomarker for prognosis of patients with esophageal squamous cell carcinoma.

译文

:食道鳞状细胞癌是全球第六大致死性癌症,也是中国第四大致死性癌症。组织特异性移植抗原P35B编码了GDP-d-甘露糖-4,6-脱水酶,该酶参与GDP-1-岩藻糖的生物合成。 GDP-1-岩藻糖是参与许多糖蛋白生物合成的重要底物。癌细胞通常伴随着糖蛋白结构的变化,从而影响细胞的粘附,侵袭和转移。尚不清楚组织特异性移植抗原P35B是否对食道鳞状细胞癌的发展有任何影响。我们使用免疫组织化学方法评估了104例食管鳞状细胞癌样品中组织特异性移植抗原P35B的表达。结果显示组织特异性移植抗原P35B的表达与患者的某些临床特征有关,例如年龄(P = .017),临床分期(P = .010)和淋巴结转移(P = .043)。 Kaplan-Meier分析和对数秩检验表明,组织特异性移植抗原P35B表达高的食管鳞状细胞癌患者与低表达的患者相比,预后较差(P = .048)。多元Cox比例风险回归模型显示,组织特异性移植抗原P35B的高表达可独立预测食管鳞状细胞癌患者的预后不良。结论:岩藻糖基化异常可能参与了食管鳞状细胞癌的进展,组织特异性移植抗原P35B可能成为食管鳞状细胞癌患者预后的新生物标志物。

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