title: Efficient attenuation of NK cell-mediated liver injury through genetically manipulating multiple immunogenes by using a liver-directed vector.
abstract: Adenovirus or adenoviral vectors were reported to induce serious liver inflammation in an NK cell-dependent manner, which limits its clinical applicability for liver gene therapy. We tried to develop an efficient liver-directed therapeutic approach to control hepatic NK cell function via simultaneously manipulating multiple immune genes. Based on our previous study, we found that CCL5 knockdown synergistically enhanced the attenuating effect of silencing CX3CL1 (fractalkine [FKN]) in adenovirus-induced acute liver injury. In addition, the combined treatment of human IL-10 expression with FKN knockdown would further strengthen the protective effect of silencing FKN. We used a hepatocyte-specific promoter to construct a hepatocyte-specific multiple function vector, which could simultaneously overexpress human IL-10 and knock down CCL5 and FKN expression. This vector could attenuate adenovirus-induced acute hepatitis highly efficiently by reducing liver NK cell recruitment and serum IFN-γ and TNF-α. The multiple function vectors could be delivered by nonviral (hydrodynamic injection) and viral (adenovirus) approaches, and maintained long-term function (more than 1 month in mice). Our results suggest a possible strategy to ameliorate the acute liver injury induced by adenovirus by modulating multiple immune genes. The novel multifunction vector has an extensive and practical use for polygenic and complex liver diseases such as malignancies and hepatitis, which correlate with multiple gene disorders.
authors.affiliation: Department of Immunology, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230027, China.
authors.forename: Jianlin
authors.initials: J
authors.lastname: Geng
authors.forename: Xuefu
authors.initials: X
authors.lastname: Wang
authors.forename: Haiming
authors.initials: H
authors.lastname: Wei
authors.forename: Rui
authors.initials: R
authors.lastname: Sun
authors.forename: Zhigang
authors.initials: Z
authors.lastname: Tian
mesh_terms: D000256:Adenoviridae / Q000276:immunology; D000257:Adenoviridae Infections / Q000235:genetics / Q000276:immunology; D000818:Animals; D045744:Cell Line, Tumor; D018946:Chemokine CCL5 / Q000235:genetics / Q000276:immunology; D054428:Chemokine CX3CL1 / Q000235:genetics / Q000276:immunology; D015316:Genetic Therapy / Q000379:methods; D005822:Genetic Vectors / Q000235:genetics* / Q000276:immunology*; D022781:Hepatocytes / Q000276:immunology / Q000821:virology; D006801:Humans; D007371:Interferon-gamma / Q000235:genetics / Q000276:immunology; D016753:Interleukin-10 / Q000235:genetics / Q000276:immunology; D007694:Killer Cells, Natural / Q000276:immunology*; D008099:Liver / Q000276:immunology* / Q000821:virology; D008107:Liver Diseases / Q000235:genetics* / Q000276:immunology* / Q000821:virology; D051379:Mice; D008810:Mice, Inbred C57BL; D014409:Tumor Necrosis Factor-alpha / Q000235:genetics / Q000276:immunology
chemical_list: C503460:Ccl5 protein, mouse; D018946:Chemokine CCL5; D054428:Chemokine CX3CL1; C515539:Cx3cl1 protein, mouse; C508609:IL10 protein, human; D014409:Tumor Necrosis Factor-alpha; D016753:Interleukin-10; D007371:Interferon-gamma