UCA1 and hepatocellular carcinoma: Also, lncRNA UCA1, particularly enriched in exosomes, can be a potential diagnostic and prognostic biomarker compared to other molecular targets due to its high stability and availability in various human body fluids, including urine for BC [13], serum for HCC [91], and plasma sample in early GC [42], as well as its possible simplicity of extraction and diagnostic testing procedures.