TEFM and non-small cell lung carcinoma: Furthermore, we investigated TEFM expression in NSCLC cells, revealing significantly higher mRNA (Fig. 1H) and protein (Fig. 1I) levels in established A549, H1299, H1650, as well as patient-derived primary human NSCLC cells (pLUAD1) compared to lung epithelial tissue BEAS-2B cells.