Currently I am investigating the effects of knocking down Pex-5 from hepatocytes using primary hepatocytes from WT and liver specific Pex-5 KO mice livers. As these primary hepatocytes are difficult to culture for longer time periods as well as to transfect with some plasmid, I am thinking of using a hepatic cell line in which I can knockout Pex-5 using siRNA and then do the same experiments in these cells. Please suggest me the best available option.