Fig. 1From: Effect of lentivirus-mediated growth and differentiation factor-5 transfection on differentiation of rabbit nucleus pulposus mesenchymal stem cellsPrimary, passaged, and transfected NPMSCs. A Completely digested NPMSCs (magnification, × 200); B primary NPMSCs (magnification, × 200); C third generation (magnification, × 200); D qRT-PCR results: NPMSCs could express the stem cell genes SOX2 and NanogBack to article page