BRD4 and head and neck squamous cell carcinoma: Furthermore, we also confirmed two colorectal cancer cell lines (SW480 and SW620) and one non-colorectal cancer cell line, SAS (from human head and neck squamous cell carcinoma (HNSCC)) to ensure the major observations (growth inhibitory testing, BRD4 LLPS formation, proliferation assays) by ACP-1n were not just specific to HCT116 cells (Figures S3 and S4).