EMP1 and neoplasm: To further examine the mechanistic role of EMP1 in tumor metastasis, we generated clones of FLAG-EMP1-LNCaP cells and selected two of these clones: LNCaP #2 cells, which faintly expressed FLAG-EMP1, and LNCaP #17 cells, which expressed high levels of FLAG-EMP1 (Fig. 3a).