MALAT1 and hepatocellular carcinoma: Metastasis-associated Lung Adenocarcinoma Transcript 1 (MALAT1) and Sprouty Receptor Tyrosine Kinase Signaling Antagonist 4-Intronic Transcript 1 (SPRY4-1T1) LncRNAs (with an average length of 21–25 nucleotides) are increased in the serum of HCC patients and are found to correlate with the grade of HCC differentiation [129].