Fig. 1From: Hepatitis B virus downregulates vitamin D receptor levels in hepatoma cell lines, thereby preventing vitamin D-dependent inhibition of viral transcription and productionTreatment with increasing concentrations of Calcitriol does not affect the transcription and expression levels of HBV genes and cccDNA. HepG2 cells were transfected with the 1.3 X HBV-Luc plasmid. 24 h later, the cells were treated with increasing concentrations of Calcitriol or EtOH, as a control. After an additional 24 h, the cells were harvested and analyzed for Luciferase activity (a). HBV-RNA (b), HBX (c) and cccDNA (d) were measured using RT-PCR. Results are expressed as mean ± standard deviationBack to article page