Figure 1.
Effects of overexpressed human hnRNPC1 and C2 on VDR-mediated gene transcription in human and mouse osteoblast-like cells. Effect of overexpression of human hnRNPC1 (C1) and/or human hnRNPC2 (C2) on 1,25(OH)2D-induction of the vitamin D-target genes CYP24A1/Cyp24a1 and DDIT4/Ddit4 in (a) mouse MC3T3 osteoblastic cells and (b) human MG-63 osteoblastic cells. Cells were treated with or without 10 nmol⋅L−1 1,25(OH)2D for 6 h, 24 h post transfection with either empty vector (c), C1, C2 or C1 and C2 (C1/C2). Data show mean±s.d. (n=3 separate cultures) fold-change in mRNA expression for CYP24A1/Cyp24a1 and DDIT4/Ddit4 for each transfected cell type following treatment with 1,25(OH)2D relative to vehicle-treated control cells. ***P<0.001, statistically different from empty vector controls (C), **P<0.01, statistically different from C.