CLEC4E and squamous cell lung carcinoma: As shown in (Supplementary Figures S7A–D), compared with normal lung tissues, mRNA expression levels of CLEC4E were significantly lower in both primary lung adenocarcinoma tissues and lung squamous cell carcinoma tissues; mRNA expression levels of BIRC3 were significantly higher in primary lung adenocarcinoma tissues, but lower in lung squamous cell carcinoma tissues.