血清肿瘤标记物异柠檬酸脱氢酶1对肺癌的辅助诊断价值

目的 探讨血清肿瘤标记物异柠檬酸脱氢酶1(IDH1)对肺癌辅助诊断的临床价值。方法 收集一般资料,应用酶联免疫法检测肺癌患者、非肺癌人群血清中IDH1的浓度水平,并分析其在肺癌诊断中的临床意义。结果 肺癌患者血清中IDH1的浓度水平明显高于非肺癌人群(7.12±6.98)ng/ml比(2.09±1.83)ng/ml,t=11.540,P<0.001];血清IDH1在腺癌和鳞癌中的浓度水平显著高于小细胞肺癌(7.91±7.26)ng/ml比(2.76±2.27)ng/ml, t=6.345,P<0.001];血清IDH1在肺癌、Ⅰ+Ⅱ期肺癌、Ⅲ+Ⅳ期肺癌中检测的敏感度分别为47.4%、49.1%和46.3%。结论 血清IDH1的检测对于非小细胞肺癌(鳞癌和腺癌)和小细胞肺癌的诊断、鉴别诊断以及对Ⅰ和Ⅱ期肺癌的辅助诊断具有较高的敏感度和特异性,血液IDH1在肺癌的辅助诊断中具有良好的临床应用价值。

Value of Serum Tumor Marker Isocitrate Dehydrogenase 1 in the Diagnosis of Lung Cancer

Objective To investigate the clinical value of serum tumor marker isocitrate dehydrogenase 1(IDH1)in the diagnosis of lung cancer. Methods The general data were collected in lung cancer patients and non-lung cancer patients.The serum level of IDH1 was detected by enzyme-linked immunosorbent assay to evaluate its clinical significance in diagnosing lung cancer. Results The serum IDH1 level was significantly higher in lung cancer patients than in non-lung cancer patients (7.12±6.98)ng/ml vs.(2.09±1.83)ng/ml,t=11.540,P<0.001].The serum IDH1 level in patients with adenocarcinoma or squamous cell carcinoma was significantly higher than that in patients with small cell lung cancer (7.91±7.26)ng/ml vs.(2.76±2.27)ng/ml, t=6.345,P<0.001].The sensitivity of IDH1 in detecting lung cancer,stage Ⅰ/Ⅱ lung cancer,and stage Ⅲ/Ⅳ lung cancer was 47.4%,49.1%,and 46.3%,respectively. Conclusions Serum IDH1 has high sensitivities and specificities in the diagnosis and differential diagnosis of non-small cell lung cancer(squamous cell carcinoma and adenocarcinoma)and small cell lung cancer as well as the auxiliary diagnosis of stage Ⅰ and Ⅱ lung cancer.It is a valuable marker for the auxiliary diagnosis of lung cancer.