The data indicated that there was a strong correlation between the levels of PCDGF mRNA expression and the capability of proliferation and invasion in ovarian cancer cell (r1 = 0.97, r2 = 0.89) (Fig. 1E), GEP protein also reflected this correlation (r1 = 0.85, r2 = 0.84) (Fig 1F). Here, GRN is linked to ovarian cancer.