MEST and nasopharyngeal carcinoma: The expression levels of these STSPs, which have also been represented here as the NPC stage–specific DEPs (Supplementary Fig. S5), show a differential reduction shortly after NPC achievement, with the exception of MEST, which first displayed a gentle decrease reaching the pre-OPC (d20) stage, followed by a dramatic reduction during the pre-OPC (d20) to OPC (d80) conversion.