STING1 and head and neck squamous cell carcinoma: To further explore STING signaling responses, HNSCC cells and control cell lines THP-1 (intact STING signaling) and HeLa (HPV+ cervical cell line) were treated with 10 μg/mL CDA for 6 hours and cell supernatants were collected for multiplex ELISA of innate immune cytokines.