ELFN1 and colorectal cancer: The MEIS1 gene has a narrow H3K4me3 peak in HT-29 colorectal cancer cells, whereas the gene in HCT116 and RKO cells was not associated with an H3K4me3 peak, suggesting that silencing of the MEIS1 promoter by the ELFN1-AS1 lncRNA is more acute in HCT116 and RKO cells.