GEM and cholangiocarcinoma: To screen for lncRNAs that are involved in gemcitabine resistance of CCA cells, lncRNA microarrays were conducted to evaluate the dysregulated lncRNAs (|Log2 fold change | ≥2) in the two pairs of CCA cell lines (HuCCT1 vs. HuCCT1-Gem, and SNU-245 vs. SNU-245-Gem).