Abstract
To assess the clinical significance of leucine-rich repeats and immunoglobulin-like domains protein 1 (LRIG1) and fascin actin-bundling protein 1 (Fascin-1) expression in nonsmall cell lung cancer (NSCLC). Six-one NSCLC patients were included in this study. The expression of LRIG1 and Fascin-1 was assayed in the tumor tissue and relative normal lung tissue of the 61 NSCLC patients by immunohistochemistry. The relationship between LRIG1, Fascin-1 expression pattern and lung cancer patients' clinical pathology characteristics was evaluated. The positive expression rate of Fascin-1 in cancer tissue and normal tissue was 70.5% (43/61) and 13.1% (8/61), respectively, which indicated cancer tissue much higher than normal tissue (P < 0.05); for LRIG1, the positive expression rate was 54.1% (33/61) and 82.0% (50/61) for tumor tissue and normal tissue with statistical difference (P < 0.05); Fascin-1-positive expression was associated with tumor diameter (P < 0.05) and mediastinal lymph node metastasis (P < 0.05). Moreover, LRIG1-positive expression was correlated with pathology type (P < 0.05), clinical stage (P < 0.05), and mediastinal lymph node metastasis (P < 0.05). LRIG1 and Fascin-1 were differently expressed in cancer and normal lung tissue in patients with NSCLC, which could be a biomarker for mediastinal lymph node metastasis in NSCLC patients.
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