NINJ1 and non-small cell lung carcinoma: To provide direct evidence for the functional role of Ninj1 in CSC phenotypes and tumorigenic activities in NSCLC cells, we selected Ninj1low (H1299 and H226Br cells) and Ninj1high (A549 and H460) expression cells and established their sublines that were stably transfected with an expression vector that was empty (EV) or carrying either human Ninj1 or control or Ninj1-specific shRNA, respectively.