In a word, though it wasn’t relevant with poor prognosis in LNCAFs or tumor cells of intestinal-type GC (Fig. 7a and b, P > 0.05), but the high FGF9 level was associated with dramatically poor prognosis in diffuse and mixed–type GC (Fig. 7c and d, P < 0.01). Here, FGF9 is linked to gastric cancer.