The effect of MTP peptide inhibitor on NP cell migration. Control transfected (CTRL) or MTP siRNA-transfected NP cells (MTP KD) were cultured in the presence of 2, 4, or 8 μm of the MTP inhibitor. Data were normalized to cultures without inhibitor (set at 1 shown with dark dotted line). Data were from 3 independent experiments. *, p ≤ 0.05; **, p ≤ 0.01; ***, p ≤ 0.001.