Silencing of a lncRNA called Cancer Susceptibility Candidate 9 (CASC9), who is associated with various processes in several cancer types, provided conflicting results, as it decreased the migration and invasion potential of ESCC (Esophageal Squamous Cell Carcinoma) cells while promoted their apoptotic potential of breast cancer cells MDA-MB-415 and MCF-7/DOX [277]. Here, CASC9 is linked to esophageal squamous cell carcinoma.