SDC1 and lung cancer: qPCR analysis showed that SDC1 mRNA expression was almost 4-fold higher in A549 cells compared to B6FS cells (Figure 1A), which was in line with RNA sequencing data from the Broad Institute Cancer Cell Line Encyclopedia (https://portals.broadinstitute.org/ccle (accessed on 15 March 2021)), showing higher SDC1 mRNA levels in tumor cells with epithelial origin including lung cancer cells compared to tumor cells with mesenchymal origin (Supplementary Figure S1).