Literature Review Summer 2009 PART I: HDACs and Inflammation/cytokine response Choi JC, Holtz R, Murphy SP. 2009. Histone Deacetylases Inhibit IFNgamma-Inducible Gene Expression in Mouse Trophoblast Cells. Journal of Immunology 182(10): 6307-6315 - HDACs need to be looked at on an operon by operon basis; here HDAC inhibitors are used to induce expression of genes regulated by interferon gamma Bode KA, Schroder K, Hume DA, et al. 2007. Histone deacetylase inhibitors decrease Toll-like receptor-mediated activation of proinflammatory gene expression by impairing transcription factor recruitment. Immunology 122(4): 596-606 - Perfomed on human and murine macrophages - Histone acetylation allows for chromatin to assume a more open structure (allowing for transcriptional activity) - HDACi’s inhibited production of IL-12-p40 o Produced by DC’s, involved in differentiation of naïve T-cells, stimulates production fo INF-gamma and TNF-alpha, activates NK cells and CD8+ T-cells - HDAC’s had no effect of upstream nf-kB or MAPK activation Nusinzon I, Horvath CM. 2003. Interferon-stimulated transcription and innate antiviral immunity require deacetylase activity and histone deacetylase 1. PNAS 100(25): 14742-14747 - HDAC 1 associates with STAT1 and STAT 2 to activate transcription - Inhibition of HDAC 1 by siRNA decreases INF-alpha responsiveness o Does not act upstream of ISGF3 DNA binding - Expression of HDAC 1 boosts the INF-alpha response - Innate antiviral activity is inhibited in the absence of deacetyalse activity o INF-gamma-STAT 1 system needs deacetylase activity o STAT3 dependent transcription is inhibited by TSA o IL-2 inhibited by TSA Lucas JL, Mirshahpanah P, Haas-Stapleton E, et al. 2009. Induction of Foxp3(+) regulatory T cells with histone deacetylase inhibitors. Cellular Immunology 257(1-2):97-104 - SAHA and MS-275 (HDACi’s) induce generation of Tregs that display suppressive activity against CD4+25- T proliferation. - Treg generation may serve as a novel mechanism for HDACi regulation of immune response Wang LQ, Tao R, Hancock WW. 2009. Using histone deacetylase inhibitors to enhance Foxp3(+) regulatory T-cell function and induce allograft tolerance. Immunology and Cell Biology 87(3):195-202 - TSA promotes acetylation of Foxp3 itself o Required for effective binding of foxp3 to promoter of IL-2 IL-2 used for T cell development Foxp3 normally functions to suppress autoimmune T-cells - HDACi’s that blocked class I AND class II HDACs were the only agents that exhibited Treg suppression activity in vivo/ in vitro Spange S, Wagner T, Heinzel T, et al. 2009. Acetylation of non-histone proteins modulates cellular signalling at multiple level. International Journal of Biochemistry and Cell Biology 41(1):185-198 - reversible lysine acetylation affects mRNA stability and the localization, interactions, degredation and function of proteins - HDACi’s also modulate post translational acetylation Brown CR, Kennedy CJ, Delmar VA, et al. 2008. Global histone acetylation induces functional genomic reorganization at mammalian nuclear pore complexes. Genes and Development 22(5):627-639 - nuclear pores are large protein compelexes that cross the nuclear envelope (about half are nuclear porins) allow for the transport of water soluble molecules across nuclear envelope nuclear localization of genes (in yeast) is tied to their transcriptional status upon treatment with HDACs- extensive nuclear rearrangement o generated from binding map of nuclear porin 93 (Nup 93) o HDACs reorganization promotes differential recruiting regions of transcriptional regulation to mammalilan nuclear pore complexes Ryan CM, Harries JC, Kindle KB, et al. 2006. Functional interaction of CREB binding protein (CBP) with nuclear transport proteins and modulation by HDAC inhibitors. Cell Cycle 5(18):2146-2152 - Provides evidence for Interactions between CBP (histone acetyltransferase) and nuclear transport proteins o HDACi’s may regulate nucleo-cytoplasmic shuttling of importins Recruitment of CBP to gene promoters results in chromatin modification, mainly by acetylastion of lysine residues in histone N-terminal tails Dokmanovic M, Marks PA. 2005. Prospects: Histone deacetylase inhibitors. Journal of Cellular Biochemistry 96(2):293-304 - At high does: induce growth arrest, differentiation, apoptosis, - autophagoctyic cell death Expression of genes is in large part regulated to the structure of chromatin proteins (epigenetic regulation) Acetylation of histone lysine residues on histone tails is among the most extensively studied aspects of chromatin structure Article: different cell phenotypes induced by HDACi’s, why are normal certain tumors more responsive to HDACis, what is basis of selectivity in altering gene expression Kramer OH, Knauer SK, Greiner G, et al. 2009. A phosphorylation-acetylation switch regulates STAT1 signaling. Genes and Development 23(2): 223-235 - acetylation of STAT1 counteracts IFN-induced STAT phosphorylation, nuclear translocation, DNA binding and target gene expression - Overview of modulation of STAT 1 activity Bosisio D, Vulcano M, Del Prete A, et al. 2008. Blocking T(H)17-polarizing cytokines by histone deacetylase inhibitors in vitro and in vivo. Journal of Leukocyte Biology 84(6):1540-1548 - Investigated the effects of HDACi’s on the maturation and activation of human DC’s in the presence of INF-gamma and LPS (SAHA and TSA) o Th1 and Th17 inducing cytokines IL-12 and IL-23 o Block Th1 attracting chemokines CXCL9, CXCL10, CXCL11 o HDACi’s = Immunomodulary at nonapoptotic doses De Boer J, Licht R, Bongers M, et al. Inhibition of histone acetylation as a tool in bone tissue engineering.Tissue Engineering 12(10): 2927-2937 - inhibition of HDAC’s stimulates osteoblast maturation - negative impact on cell proliferation (human mesenchymal stem cells) Kramer OH, Baus D, Knauer SK, et al. Acetylation of Stat1 modulates NFkappa B activity. Genes and Development. 20(4): 473-485 - both HDACi’s and INF-alpha alter equilibrium and induce STAT 1 acetylation; acetylated STAT 1 binds to NF-kB p 65, p65 binding, nuclear localization and expression of anit-apoptotic genes decreases o acetylation of STAT 1 regulates NF-kB and apoptosis Halili MA, Andrews MR, Sweet MJ, et al. 2009. Histone Deacetylase Inhibitors In Inflammatory Disease. Current Topics in Medicinal Chemistry. 9(3): 309-319 - HDAC and HAT are known to modify non-histone proteins to control diverse cell processes o Inflammation Activity of cytokines receptors Nuclear hormone receptors Intracellular signaling molecules Transcription factors o HDACs as possible treatments of Arthritis, inflammatory bowel disease, septic shock, asthma, MS, CNS degeneration etc. Han SB, Lee JK. 2009. Anti-inflammatory effect of Trichostatin-A on murine bone marrow-derived macrophages. Archives of Pharmacal Research. 32(4):613-624 - compared effect of 5 differetnt HDACi’s ( on NO production of RAW 264.7) - TSA significantly decreased mRNA and protein levels of TNF-alpha, IL-6, IL-1 beta; pretreatment with TSA increased the level of immunosuppressive IL-10 Hamalainen M, Lilja R, Kankaanranta H, et al. 2008. Inhibition of iNOS expression and NO production by anti-inflammatory steroids Reversal by histone deacetylase inhibitors. Pulmonary Pharmacology and Therapeutics. 21(2):331-339 - During inflammation NO is produced by iNOS (nitric oxide synthase) o Induced by bacterial products and cytokines - Studided the effects of HDACi’s (TSA, apicidin, MC1293) on suppressive effects of glucocorticoids on NO production and iNOS expression o Concluded that iNOS expression and NO production Choi Y, Park SK, Kim HM, et al. 2008. Histone deacetylase inhibitor KBH-A42 inhibits cytokine production in RAW 264.7 macrophage cells and in vivo endotoxemia model. Experimental and Molecular Medicine. 40(5):574-581 - examined HDACi (KBH-A42) decreased expression of TNF-alpha, NO production, proinflammatory cycle o p38 kinase is involved in KBH-A42 inhibiiton RT-PCR confirmed TNF-alpha, IL-1beta, IL-6 inhibition NF-kB not directly changed, also phos. Of ERK1/2 and SPAK/JNK not effected Sailhamer EA, Li YQ, Smith EJ, et al. 2008. Acetylation: a novel method for modulation of the immune response following trauma/hemorrhage and inflammatory second hit in animals and humans. Surgery 144(2): 204-216 - hemorrhage in animals produced severe shock and a pro-inflammatory state o SAHA normalizes TNFa levels Rats responds to SAHA either with marked attenuation of exaggeration of inflammatory cytokines o Cytokines levels were independent of gene expression, implicating acetylation of non-nuclear proteins as the dominant regulatory mechanism Li NN, Zhao D, Kirschbaum M, et al. 2008. HDAC inhibitor reduces cytokine storm and facilitates induction of chimerism that reverses lupus in anti-CD3 conditioning regimen. PNAS 105(12): 4796-4801 - in allogenic hematopoietic cell transplantation (HCT) anti-CD-3 conditioning is used to allow donor CD8+ T cells to facilitate engraftment cytokine storm is produced by anti-CD3 conditioning regimine SAHA inhibits the proliferative and cytotoxic activity of anit-CD3 activated T-cells Lin HS, Hu CY, Chan HY, et al. 2007. Anti-rheumatic activities of histone deacetylase (HDAC) inhibitors in vivo in collagen-induced arthritis in rodents. British Journal of Pharmacology 150(7): 862-872 Larsen L, Tonnesen M, Ronn SG, et al. 2007. Inhibition of histone deacetylases prevents cytokine-induced toxicity in beta cells. Diabetologia 50(4):779-789 - HDAC inhibition reduced cytokine mediated decrease in insulin secretion and increase in iNOS levels - In response to immune mediated elimination of pancreatic beta cells in type 1 diabetes - HDAC inhibition prevents cytokin-induced beta cell apoptosis Brogdon JL, Xu YY, Szabo SJ, et al. 2007. Histone deacetylase activities are required for innate immune cell control of Th1 but not Th2 effector cell function. Blood 109(3):1123-1130 - HDAC inhibition alters TLR 4 dependent activation Inhibited DC controlled Th1 effector by not Th2 effector activation and migration Inhibited macrophage, DC mediated and monocyte but not neutrophil chemotaxis Carta S, Tassi S, Semino C, et al. The histone deacetylase inhibitor ITF2357 reduces production of pro-inflammatory cytokines in vitro and systemic inflammation in vivo. Molecular Medicine (11): 1-15 - reduced LPS stimulated PBMCs production of o TNFa (50%) o IL-1B (50%) o IL-1A (50%) o IFN-gamma Blanchard F, Chipoy C. 2005. Histone deacetylase inhibitors: new drugs for the treatment of inflammatory diseases?. Drug Discovery Today 10(3):197204 - Putative HDACi reduction of cytokines and NO suggests inhibition of NF-kB Literature Review Part II: Adenovirus Mediated Gene Therapy Ajuebor MN, Jin YJ, Gremillion GL, et al. 2008. Gamma delta T cells initiate acute inflammation and injury in adenovirus-infected liver via cytokinechemokine cross talk . Journal of Virology 82(19):9564-9576 - Classical innate immune cells NK, neutrophis and Kupffer cells have all been implicated in the development of Ad-mediated liver toxicity CXCL9-CXCR3 dependent mechanism governing accumulatio of GDTcells in livers of Ad infected mice o Recruit CD8+ o CXCL9/IFN-gamma feedback loop to drive proinflammatory effects of GDTcells during Ad infection Appledorn DM, McBride A, Seregin S, et al. 2008. Complex interactions with several arms of the complement system dictate innate and humoral immunity to adenoviral vectors. Gene Therapy 15(24):1606-1617 - Several studies have suggested that recombinant adenoviruses interact with the complement system within minutes of the infection Transcriptome response to rAD was both C3 and Factor B dependent Also identified C3 dependence of Ad-mediated induction of the NF-kB pathway Appledorn DM, Patial S, McBride A, et al. 2008. Adenovirus vector-induced innate inflammatory mediators, MAPK signaling, as well as adaptive immune responses are dependent upon both TLR2 and TLR9 in vivo. Journal of Immunology. 181(3):2134-2144 - Ad directly activates ERK 1/2 BUT ERK 1/2 activation is MyD88/TLR2 independent, Kupffer cell-dependent - TLR 2 and MyD88 required for sustained activation of ERK1/2 however - NF-kB induction by Ad dependent on My-D88 and independent of TLR2 in liver - TLR2 significantly influenced Ad late phase activation of NF-kB - TLR is needed for adaptive immune response o Generation of Ad-neutralizing Abs/ anti-transgene abs - Several induced innate immune responses are dependent on TLR 2 and 9 Benihoud K, Salone B, Esselin S, et al. 2000. The role of IL-6 in the inflammatory and humoral response to adenoviral vectors. Journal of Gene Medicine. 2(3):194-203 - IL-6 plays an important part in acute phase innate response o Differentiation of B cells and activation of TH2 cells - While IL-6 plays a role in acute phase innate reponse, antibody and cellular response to Ad are very similar in WT and IL-6 -/- mice (possibly to compensatory mechanisms) Bessis N, GarciaCozar FJ, Boissier MC. 2004. Immune responses to gene therapy vectors: influence on vector function and effector mechanisms. Human Gene Therapy 14(7):627-643 - Viral vectors induce immune response due to immunogenic epitope expression inside the organism - Large inflammatory cytokine and chemokine secretion profile initially o Not so much with AAV - DNA vectors also elicit innate immune response because of CpG islest - Capsid antigens are mostly responsible for specific immunity against Ad o Virally encoded proteins can also immunogenic - Article discusses strategies to fight vector-inuduced immunity Cotter MJ, Muruve DA . 2005. Neutrophil Interaction with Adenovirus Vectors During the Innate Immune Response Limit Viral Persistence In Vivo. Inflammation Research 54:S185 Cotter MJ, Muruve DA. 2005. The induction of inflammation by adenovirus vectors used for gene therapy. Frontiers in BioScience 10:1098-1105 - Review of cellular and molecular mechanisms involved in the adenovirusmediated inflammatory response Cotter MJ, Zaiss AK, Muruve DA. 2005. Neutrophils interact with adenovirus vectors via Fc receptors and complement receptor 1. Journal of Virology 79(23):14622-14631 - 25% of recruited neutrophils interacted with Ad (Cy-2 labled Ad, FACs) - Ad-neutrophil interaction reduced vector transduction efficiency by more than 50% - CAR (coxsackie adenovirus receptor) not present in Neutrophils, blocking of complement receptor 1 (CD35) greatly reduced neutrophil uptake of Ad - Blocking of Fc receptors also reduced neutrophil uptake - Combined CR1 and Fc receptor blockaded synergistically inhibited uptake of Ad to clost to baseline - Results demonstrate opsonin-dependent Ad interactions with neutrophils Descamps D, Benihoud K. 2009. Two Key Challenges for Effective Adenovirus-Mediated Liver Gene Therapy: Innate Immune Responses and Hepatocyte-Specific Transduction. Current Gene Therapy 9(2):115-127 - overview of Immune responses mediated by Ad and discussion about how to optimize delivery, specificity, and maximize transgene expression Fejer G, Drechsel L, Liese J, et al. 2008. Key Role of Splenic Myeloid DCs in the IFN-alpha beta Response to Adenoviruses In Vivo. PLOS Pathogens 4(11): e1000208 - Early production of IFNa/b=essential component of antiviral host defense mechanisms - Ads elicit strong and rapid IFN-a/b production almost exclusively in splenic mDCs - IFN a/b response does not require TLRs, cytosolic sensors of RNA (RIG-I, MDA-5) o Instead dependent on viral endosome escape Signaling via MAPK, SAPK/JNK and IRF-7 - IFNa/b regulates IL-6 response in vivo Gardner T, Chen QL, Jin YJ, et al. 2009. Characterization of the role of TCR gamma delta in NK cell accumulation during viral liver inflammation. Experimental and Molecular Patholgy 86(1):32-35 - NK cell accumulation but not activation for Poly I:C(polyinosinicpolyctidylic acid) treatment (GD Tcell deficient) - NK cell accumulated AND activated in TCR gamma delta deficient mouse strain after Ad infection Haisma HJ, Kamps JAAM, Kamps GK, et al. 2008. Polyinosinic acid enhances delivery of adenovirus vectors in vivo by preventing sequestration in liver macrophages. Journal of General Biology 89:1097-1105 - - upon Adenovirus administration, AD is preferentially sequestered by the liver o results in reduced transgene expression in targeted tissues Kupffer cells in liver largely contribute to inflammatory response Poly(1) (polyinosinic acid-receptor A scavenger) assessed for its ability to inhibit Ad uptake specifically in macrophages Pretreatment with Poly(1) caused a 10-fold transient increase in Ad titer in blood Transgene levels ehanced 5-15 fold No liver toxicity observed after poly(1) treatment Hartman ZC, Appledorn DM, Amalfitano A. 2008. Adenovirus vector induced innate immune responses: Impact upon efficacy and toxicity in gene therapy and vaccine applications. Virus Research 132(1-2):1-14 - Overview of known interactome of Ad virus vectors Hartman ZC, Kiang A, Everett RS, et al. 2007. Adenovirus infection triggers a rapid, MyD88-regulated transcriptome response critical to acute-phase and adaptive immune responses in vivo. Journal of Virology 81(4):1796-1812 - Used MyD88KO mice to confirm gene expression profile results: Ad- - induced dysregulation of five functionally related gene clusters are significantly dependent on the TLR adaptor gene MyD88 deficienty resulted in significantly diminished, but not abolished, adaptive acute-phase immune reponse to Ad Jager L, Hausl MA, Rauschhuber C, et al. 2009. A rapid protocol for construction and production of high-capacity adenoviral vectors. Nature Protocols 4(4):547-564 Kiang A, Hartman ZC, Everett RS, et al. 2006. Multiple innate inflammatory responses induced after systemic adenovirus vector delivery depend on a functional complement system. Molecular Therapy 14(4): 588-598 - comparision of acute-phase protein levels in WT and complement KO mouse IL-6, IFN-gamma, RANTES, IL-12(p40), IL-5, G-CSF in WT but not KO Lieber A, He CY, Meuse L, et al. 1998. Inhibition of NF-kappa B activation in combination with Bcl-2 expression allows for persistence of first-generation adenovirus vectors in the mouse liver. Journal of Virology 71(11): 9267-9277 Liu Q, Muruve DA. 2003. Molecular basis of the inflammatory response to adenovirus vectors. Gene Therapy 10(11):935-940 - Molecular basis for inflammatory response - Viral capsid (transcription-independent) activates a number of signaling pathways o P38 mitogen activated protein kinase (MAPK) and extracellular signalregulate kinase (ERK) o Ultimately lead to expression of proinflammatory genes Cytokines, chemokines, leukocyte adhesion moleules McCaffrey AP, Fawcett P, Nakai H, et al. 2008. The host response to adenovirus, helper-dependent adenovirus, and adeno-associated virus in mouse liver. Molecular Therapy 16(5): 931-941 - Ad and HD gene expression programs were very similar o Prominent type I interferon dependent cluster within the first 6 hours o AAV caused far fewer alterations in gene expression o Host recognition of capsid or dsDNA (of nonviral origin) elicits a robust type I IFM response Not elicited by AAV-derived vector transduction Minter RM, Rectenwald JE, Fukuzuka K, et al. 2000. TNF alpha receptor signaling and IL-10 gene therapy regulate the innate and humoral immune responses to recombinant adenovirus in the lung. Journal of Immunology 164(1):443-451 - Can IL-10 (suppressive cytokine) reduce inflammation and extend duration of transgene expression? - Also determine the role of TNF-alpha and TNF receptor signaling in Ad clearance and immune responses - TNFa signaling through p55 and 74 plays important roles in clearance of Ad vectors and the magnitude of the humoral response Mok H, Park JW, Park TG. 2007. Microencapsulation of PEGylated adenovirus within PLGA microspheres for enhanced stability and gene transfection efficiency. Pharmaceutical Research 24(12): 2263-2269 Moro MR, Bonville CA, Suryadevara M, et al. 2009. Clinical Features, Adenovirus Types, and Local Production of Inflammatory Mediators in Adenovirus Infections. Pediatric Infections Disease Journal 28(5) 376-380 Muruve DA, Petrilli V, Zaiss AK, et al. 2008. The inflammasome recognizes cytosolic microbial and host DNA and triggers an innate immune response. Nature 452(7183): 103-U11 Muruve DA. 2004. The innate immune response to adenovirus vectors. Human Gene Therapy 15(12):1157-1166 Nakashima K, Sakurai F, Kawabata K, et al. 2008. Efficient gene delivery in human and rodent mast cells using adenovirus vectors. Journal of Controlled Release. 129(3): 215-222 Nazir SA, Metcalf JP. 2005. Innate immune response to adenovirus. Journal of Investigative Medicine 53(6):292-304 Nociari M, Ocheretina O, Murphy M, et al. 2009. Adenovirus Induction of IRF3 Occurs through a Binary Trigger Targeting Jun N-Terminal Kinase and TBK1 Kinase Cascades and Type I Interferon Autocrine Signaling. Journal of Virology 83(9):4081-4091 Nociari M, Ocheretina O, Schoggins JW, et al. 2007. Sensing infection by adenovirus: Toll-like receptor-independent viral DNA recognition signals activation of the interferon regulatory factor 3 master regulator. Journal of Virology 81(8): 4145-4157 Perreau M, Kremer EJ. 2006. The conundrum between immunological memory to adenovirus and their use as vectors in clinical gene therapy. Molecular Biotechnology 34(2):247-256 Ritter T, Lehmann M, Volk HD. Improvements in gene therapy - Averting the immune response to adenoviral vectors. 2002. BioDrugs 16(1):3-10 Sakurai H, Igarashi K, Tashiro K, et al. 2008. Analysis of gene expression profile involved in the innate immune response by adenovirus vector. Journal of Gene Medicine 10(4):468 IL6 and IL12 CXCL10 and CCL4 Interferon Inducible genes TLR 2 and TLR 3 Differential expression in in vivo repsponse in spleen and liver Sakurai H, Kawabata K, Sakurai F, et al. 2008. Innate immune response induced by gene delivery vectors. International Jouranl of Pharmaceutics 354(1-2):9-15 Sakurai H, Tashiro K, Kawabata K, et al. 2008. Adenoviral expression of suppressor of cytokine signaling-1 reduces adenovirus vector-induced innate immune responses. Journal of Immunology 180(7):4931-4938 Schaack J. 2005. Induction and inhibition of innate inflammatory responses by adenovirus early region proteins. Viral Immunology 18(1):79-88 Segura MM, Alba R, Bosch A, et al. 2008. Advances in helper-dependent adenoviral vector research. Current Gene Therapy. 8(4):222-235 Shayakhmetov DM, Li ZY, Ni SH, et al. 2005. Interference with the IL-1- signaling pathway improves the toxicity profile of systemically applied adenovirus vectors. Journal of Immunology 174(11):7310-7319 Yanagi K, Nagayama Y, Nakao K, et al.2003. Immuno-gene therapy with adenoviruses expressing fms-like tyrosine kinase 3 ligand and CD40 ligand for mouse hepatoma cells in vivo. International Journal of Oncology 22(2): 345-351 Zaiss AK, Cotter MJ, White LR, et al. 2008. Complement is an essential component of the immune response to adeno-associated virus vectors. Journal of Virology 82(6):2727-2740 Zaiss AK, Liu Q, Bowen GP, et al. 2002. Differential activation of innate immune responses by adenovirus and adeno-associated virus vectors. Journal of Virology 76(9): 4580-4590 Zhang Y, Chirmule N, Gao GP, et al. 2001. Acute cytokine response to systemic adenoviral vectors in mice is mediated by dendritic cells and macrophages. Molecular Therapy 3(5): 697-707 Zhu JA, Huang XP, Yang YP. 2008. A critical role for type I IFN-dependent NK cell activation in innate immune elimination of adenoviral vectors in vivo. Molecular Therapy 16(7): 1300-1307 Zhu JG, Huang XP, Yang YP. 2007. Type IIFN signaling on both B and CD4 T cells is required for protective antibody response to adenovirus. Journal of Immunology 178(6): 3505-3510 Zhu JG, Huang XP, Yang YP. Innate immune response to adenoviral vectors is mediated by both Toll-like receptor-dependent and -independent pathways. Journal of Virology 81(7): 3170-3180 (Further literature cited in review article Innate immune response induced by gene delivery vectors) Basner-Tschakarjan et al., 2006. Adenovirus efficiently transduces plasmacytoid dendritic cells resulting in TLR9-dependent maturation and IFN-alpha production, J. Gene. Med. 8 (2006), pp. 1300–1306. Borgland et al., 2000. Adenovirus vector-induced expression of the C–X–C chemokine IP-10 is mediated through capsid-dependent activation of NFkappaB, J. Virol. 74 (2000), pp. 3941–3947. G.P. Bowen, S.L. Borgland, M. Lam, T.A. Libermann, N.C. Wong and D.A. Muruve. Adenovirus vector-induced inflammation: capsid-dependent induction of the C–C chemokine RANTES requires NF-kappaB, Hum. Gene. Ther. 13 (2002), pp. 367–379. Colonna et al., 2004 M. Plasmacytoid dendritic cells in immunity, Nat. Immunol. 5 (2004), pp. 1219–1226. Hartman et al., 2007. Adenovirus infection triggers a rapid, MyD88 regulated, transcriptome response critical to acute phase and adaptive immune responses in vivo, J. Virol. 81 (2007), pp. 1796–1812. Kawai and Akira, 2006. Innate immune recognition of viral infection, Nat. Immunol. 7 (2006), pp. 131–137. Schnell et al., 2001. Activation of innate immunity in nonhuman primates following intraportal administration of adenoviral vectors, Mol. Ther. 3 (2001), pp. 708–722. Literature Review Part II (B): Interferon Responsive Genes (Type I), NF-kB genes, and MAPK cytokines MacDonald MR. et al. 2007. The Zinc Finger Antiviral Protein Acts Synergistically with an Interferon-Induced Factor for Maximal Activity against Alphaviruses. Journal of Virology 81(24): 13509-13518. Overexpression of the zinc finger antiviral protein (ZAP) imparts a cellular antiviral state Wei L. et al. 2006. NF{kappa}B Negatively Regulates Interferon-induced Gene Expression and Anti-influenza Activity. J. Biol. Chem 28(17):11678-11684. IFN treatment resulted in the recruitment of STAT1 and STAT2 to promoters. However, in NF{kappa}B knock-out cells IFN induced STAT binding as well as the binding of the IFN regulatory factor-1 (IRF1) to the IFN-stimulated gene (ISG) promoters. IRF1 binding closely correlated with enhanced gene induction.