The expression and clinical significance of B7-H3 and miR-145 in lung cancer patients with malignant pleural effusion.

B7-H3 and miR-145 are abnormally expressed in lung cancer, and are closely related to the lymphatic metastasis, differentiation degree and TNM stage of lung cancer. They may be potential markers for the diagnosis of malignant pleural effusion in lung cancer in the future.