SBF2 and glioblastoma: Set Binding Factor Antisense RNA 1 (SBF2-AS1) expression is upregulated in Temozolomide (TMZ)-resistant GBM cells that secrete exosome-derived SBF2-AS1 and promote X-ray-Repair-Cross-Complementing-4 (XRCC4) expression through binding to miR-151a-3p, thus inducing increased resistance to TMZ [126].