C1QTNF6 and lung cancer: Compared to those in the non-tumor lung tissues, the expression levels of C1QTNF6, TCN1, F2, FETUB, IGFBP1, ANGPTL4, IFNE, and CCL20 were upregulated in lung cancer tissues, while the expression level of CLEC3B was downregulated (Figures 8A–I).