Quantification of HOX‐expressing cells within normal lung and NSCLC tissue confirmed an increase of cells expressing the LR‐/VW‐MSC‐specific HOX code in NSCLC tissue, as well as the increase of putative LR‐MSCs coexpressing the classical MSC marker CD146 and the stage‐specific embryonic antigen‐4 (SSEA4) as additional MSC marker (Figure S5B). This evidence concerns the gene MCAM and non-small cell lung carcinoma.