CDH1 and infection: HepG2-NTCP, HepaRG, and PHH cells were transfected with 20 pmol of siRNA-NC, siRNA-E-cadherin, siRNA-NTCP or a combination of siRNA-E-cadherin and siRNA-NTCP before infection with 1 × 103 genome equivalents/cell of HBV produced from HepAD38 cells in 24-well plate.