CX3CR1KO NPC cultures displayed high levels of SOX2+ and NESTIN+ cells (92.5% ± 1.5% and 91.5% ± 1.9%, respectively), whereas CX3CR1KO OPC cultures had reduced proportions of OLIG2+ and PDGFRα+ cells (64.2% ± 12.7% and 13.9% ± 4.6%, respectively) (Figures 2Ki and 2Mi). This evidence concerns the gene SOX2 and nasopharyngeal carcinoma.