CEACAM6 and non-small cell lung carcinoma: In addition to validating elevated levels of MUC1 expression in NSCLC LM cells (Fig. 3D), single-cell RNA-seq of NSCLC LM showed high expression of CEACAM6. CEACAM6 is a multi-functional glycoprotein that is often overexpressed in epithelial malignancy, correlating with adverse clinical outcomes19.