Review
Copyright ©The Author(s) 2015.
World J Hepatol. Apr 28, 2015; 7(6): 859-873
Published online Apr 28, 2015. doi: 10.4254/wjh.v7.i6.859
Table 1 Selected examples of liver-specific gene therapies for complex genetic and hereditary monogenic disorders
DiseaseTherapyRationaleStage of developmentRef.
Gene therapy for complex genetic diseases
Hepatocellular carcinomaRecombinant human adenovirus type 5 administration followed by TACEAdenovirus is highly infectious and when it is used in conjunction with TACE it improves tissue penetration and thus tumor shrinkageClinical (phase I and II)[18]
Gene therapy for hereditary monogenic diseases
Crigler-Najjar syndrome type IAAV neonatal mouse hUGT1A1 gene transferAAV has low immunogenicity and is highly infectious in hepatocytes. Thus, in this study expression of bilirubin UDP glucuronosyl-transferase was augmented a large number of hepatocytes following transduction with hUGT1A1Preclinical[19]
Familial hyper- cholesterolemiaHepatocytes corrected with retroviruses expressing the low-density lipoprotein receptorThe transplantation of hepatocytes allows the slow repopulation of the liver with a desirable phenotype. In this study this method was used to introduce hepatocytes expressing the low-density lipoprotein receptorClinical (phase I)[20]
Hemophilia ARecombinant factor VIII fused to Fc domain of IgG1 (rFVIIIFc)Coagulation factor replacement therapy requires the regular replacement of factor VIII (FVIII) with recombinant FVIII products or plasma-derived concentrates. The use of a long-lasting recombinant FVIII protein would reduce the need for frequent injections. The fusion of the human Fc domain of IgG1 to FVIII extends the half-life of FVIII and may reduce the injection frequency by 50% when compared with current treatmentsClinical (phase III)[21]