FTO and gastric cancer: The expression of the m6A writers METTL3, RBM15 and WTAP is correlated with the pathologic stage.[111,155,156,157] Elevated WTAP levels predict lower recurrence-free survival rates in GC patients.[157] The m6A eraser FTO is involved in tumor staging, and ALKBH5 expression is linked to the prognosis of GC.