The unsupervised hierarchical clustering analysis of differentially expressed lncRNAs revealed that the dysregulated lncRNAs expression patterns were distinguishable between the DLBCL cell and CD19‐positive B cell, and ASHGA5P019110 (OR2A1‐AS1) were mostly decreased in DLBCL cell compared with CD19‐positive B cell (Figure 1B,C). The gene discussed is OR2A1; the disease is diffuse large B-cell lymphoma.