Expression level of Annexin Ⅱ in lung cancer tissue, bronchoalveolar lavage fluid and pleural effusion and its value in the diagnosis of lung cancer / 中国综合临床

ABSTRACT

Objective To investigate the expression level of Annexin Ⅱ in bronchial lung cancer tissue,alveolar lavage fluid(BALF) and pleural effusion and its value in the diagnosis of lung cancer.Methods From January 2014 to March 2016 in Jingzhou Infectious Disease Hospital,80 cases of patients with pleural effusion of lung cancer (Lung Cancer Group),40 patients with benign pleural effusion (benign group) were chose.The expression level of Annexin of two groups of patients with pleural effusion,BALF were detected and compared.Sixty specimens of department of pathology past (after lung cancer surgery cancer) and 30 cases of previously collected normal lung tissues (normal lung tissue) were collected,differential expression by immunohistochemical staining were compared between the two groups of Annexin Ⅱ protein.Results The positive expression of Annexin Ⅱ in lung cancer was 61.67％ (37/60),higher than that in normal lung tissue of 23.33％ (7/30),the difference was statistically significant(P＜0.001).The positive expression of Annexin Ⅱ in lung cancer patients was significantly correlated with rate of lymph node metastasis and clinical stage of lung cancer(P =0.039,0.029).Group of patients with pleural effusion,BALF expression of Annexin Ⅱ the level was higher than that in benign group(P＜0.001).When the critical value of Annexin in pleural effusion of lung cancer diagnosis was 10.94 μg/L,the sensitivity of diagnosis of lung cancer was 83.47％,the specificity was 80.66％,AUC value was 0.837.The critical value when BALF Annexin Ⅱ in the diagnosis of lung cancer was 52.08 μg/L,the sensitivity of diagnosis of lung cancer was 86.19％,the specificity was 89.22％,the AUC value was 0.898.Conclusion The expression level of Annexin Ⅱ in the BALF and pleural effusion of patients with bronchial lung cancer and lung cancer is increased,and it has a certain clinical value for the differential diagnosis of lung cancer.