GPR68 and myelodysplastic syndrome: Promoter region analysis and chromatin immunoprecipitation-sequencing (ChiP-seq) revealed that GPR68 contained binding peaks for Ikaros family zinc finger 1 (IKZF1); IKZF1 functions as a transcriptional repressor of GPR68 in a myelodysplastic syndrome (MDS) cell line [39].