CASP8AP2 and neoplasm: Of particular interest in the lncRNA involved in tumor progression, we selected four upregulated lncRNAs (long intergenic non-protein coding RNA 1637 (LINC01637) (also named XXbac-B135H6), metastasis-associated lung adenocarcinoma transcript 1 (MALAT1), caspase-8 associated protein-2 (CASPAP2) and nuclear enriched abundant transcript 1 (NEAT1)) and two downregulated lncRNAs (UCA1 and metastasis associated in colon cancer 1-antisense RNA 1 (MACC1)-AS1) to verify their differential expression.