FOXP4 and colorectal carcinoma: Multiple studies have reported that lncRNA forkhead box P4 antisense RNA 1 (FOXP4-AS1) is involved in human cancers, such as colorectal cancer (CRC), gastric cancer (GC), and prostate cancer (PCa) Li et al. 2017a, Chen et al. 2019, Wu et al. 2019).