The lncRNA HOXA‐AS2 acts as a ceRNA for miR‐184 to regulate the expression of COL6A2 to involve the recurrence and metastasis of glioma through constructing the ceRNA regulator networks of lncRNAs, miRNAs, and mRNAs by comprehensive transcriptomic analysis of multiple datasets from CGGA and TCGA datasets [53]. The gene discussed is COL6A2; the disease is central nervous system cancer.