MARK4 and hepatocellular carcinoma: Initially termed MARKL1 (microtubule affinity‐regulating kinase‐like 1), MARK4 was identified by a cDNA microarray approach to be down‐regulated following a decrease in TCF/LEF1 (transcription complex, T‐cell factor/lymphoid enhancer‐binding factor) activity in hepatocellular carcinoma cell lines.