血清人衰老关键蛋白1检测对结肠直肠癌的诊断和预后价值

Journal of Diagnostics Concepts & Practice(2021)

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Abstract
目的:探究人衰老关键蛋白1(Fibulin-1,FBLN1)作为血清标志物在结肠直肠癌(colorectal cancer,CRC)诊断中的价值.方法:选取81例CRC患者作为CRC组,50例结肠直肠息肉患者(息肉组)和50名健康体检者(健康组)作为对照,采用酶联免疫吸附试验(enzyme-linked immunosorbent assay,ELISA)检测其血清FBLN1及癌胚抗原(carcinoembryonic antigen,CEA)水平,并进行组间比较分析.结果:与血清CEA类似,CRC组的血清FBLN1水平[(12.98±7.82)ng/mL]明显高于息肉组[(7.54±1.23)ng/mL]和健康组[(6.89±2.03)ng/mL],差异均具有统计学意义(P<0.05),息肉组与健康组间的血清FBLN1水平差异无统计学意义.低分化CRC患者的血清FBLN1水平[(22.23±18.51)ng/mL]分别高于中分化CRC[(11.65±13.28)ng/mL,P<0.05]及高分化CRC患者[(9.12±10.17)ng/mL,P<0.05],有淋巴结转移的CRC患者的血清FBLN1水平[(15.26±6.98)ng/mL]高于无淋巴结转移的患者[(8.58±4.27)ng/mL,P<0.05].血清FBLN1>9.85 ng/mL诊断CRC的受试者操作特征(receiver operating characteristc,ROC)曲线下面积为0.852,灵敏度为82.7%,特异度约为90.0%,均优于CEA(灵敏度64.2%,特异度为82.1%).结论:血清FBLN1水平有可能作为CRC诊断及判断病理分化程度、淋巴结转移情况的标志物.
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Key words
|colorectal cancer|fibulin-1|carcinoembryonic antigen|tumor marker
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