We reintroduced the 12 genes, CAV2, PHLDA1, DUSP23, VDAC3, DSG2, SPINT2, SPATS2L, IGFBP3, CD9, ALCAM, PRSS23, CDKN2A, constructed as Neoadjuvant Chemotherapy Score into the single cell sequencing data of LUAD and ESCC patients before and after neoadjuvant therapy as well as the CCLE database. The gene discussed is PHLDA1; the disease is esophageal squamous cell carcinoma.