SOD2 and gastric cancer: The lncRNA GClnc1, which is up-regulated in human gastric cancer tissues, binds to WDR5 and the histone acetyltransferase KAT2A, acts as a modular scaffold for WDR5 and KAT2A complexes, and promotes the transcription of their target genes including SOD2, leading to gastric cancer cell proliferation, invasion and metastasis [15].