KCNH2 and esophageal squamous cell carcinoma: We silenced TXNDC5 in HERG1-overexpressing TE-1 cells or overexpressed TXNDC5 in HERG1-silenced KYSE-30 cells in order to explore the interplay between TXNDC5 and HERG1 in the proliferation and invasion of ESCC cells.