A study done by Li et al., (2016) was the first to show that pSer153RKIP is a favorable prognostic factor for patients with nasopharyngeal carcinoma (NPC) who received radiation [64], while in patients with early-stage lung cancer, normal expression of phosphorylated RKIP was an indicator of more favorable survival [51,64]. This evidence concerns the gene PEBP1 and lung cancer.