(C) qRT-PCR analysis of pluripotency (OCT4, SOX2), mesodermal (Brachyury), endodermal (GATA4), and neural progenitor (Nestin, PAX6, and SOX1) genes in YH10 and 1323–2 hiPSC-derived NPC lines. The gene discussed is SOX1; the disease is nasopharyngeal carcinoma.