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Current state of type 1 diabetes immunotherapy: incremental advances, huge leaps, or more of the same? Clin Dev Immunol 2011; 2011:432016. [PMID: 21785616 PMCID: PMC3139873 DOI: 10.1155/2011/432016] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2011] [Accepted: 04/28/2011] [Indexed: 01/09/2023]
Abstract
Thus far, none of the preclinically successful and promising immunomodulatory agents for type 1 diabetes mellitus (T1DM) has conferred stable, long-term insulin independence to diabetic patients. The majority of these immunomodulators are humanised antibodies that target immune cells or cytokines. These as well as fusion proteins and inhibitor proteins all share varying adverse event occurrence and severity. Other approaches have included intact putative autoantigens or autoantigen peptides. Considerable logistical outlays have been deployed to develop and to translate humanised antibodies targeting immune cells, cytokines, and cytokine receptors to the clinic. Very recent phase III trials with the leading agent, a humanised anti-CD3 antibody, call into question whether further development of these biologics represents a step forward or more of the same. Combination therapies of one or more of these humanised antibodies are also being considered, and they face identical, if not more serious, impediments and safety issues. This paper will highlight the preclinical successes and the excitement generated by phase II trials while offering alternative possibilities and new translational avenues that can be explored given the very recent disappointment in leading agents in more advanced clinical trials.
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Phillips B, Giannoukakis N, Trucco M. Dendritic cell-based therapy in Type 1 diabetes mellitus. Expert Rev Clin Immunol 2010; 5:325-39. [PMID: 20477010 DOI: 10.1586/eci.09.8] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Dendritic cell (DC) immunotherapy is a clinical reality. Despite two decades of considerable data demonstrating the feasibility of using DCs to prolong transplant allograft survival and to prevent autoimmunity, only now are these cells entering clinical trials in humans. Type 1 diabetes is the first autoimmune disorder to be targeted for treatment in humans using autologous-engineered DCs. This review will highlight the role of DCs in autoimmunity and the manner in which they have been engineered to treat these disorders in rodent models, either via the induction of immune hyporesponsiveness, which may be cell- and/or antigen-specific, or indirectly by upregulation of other immune cell networks.
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Affiliation(s)
- Brett Phillips
- University of Pittsburgh School of Medicine, Department of Pediatrics, Division of Immunogenetics, Children's Hospital of Pittsburgh, Rangos Research Center, 530 45th Street, Pittsburgh, PA 15201, USA.
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Alderuccio F, Chan J, Scott DW, Toh BH. Gene therapy and bone marrow stem-cell transfer to treat autoimmune disease. Trends Mol Med 2009; 15:344-51. [PMID: 19665432 DOI: 10.1016/j.molmed.2009.06.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2009] [Revised: 06/09/2009] [Accepted: 06/09/2009] [Indexed: 12/14/2022]
Abstract
Current treatment of human autoimmune disease by autologous bone marrow stem-cell transfer is hampered by frequent disease relapses. This is most probably owing to re-emergent self-reactive lymphocytes. Gene therapy combined with bone marrow stem cells has successfully introduced genes lacking in immunodeficiences. Because the bone marrow compartment has a key role in establishing immune tolerance, this combination strategy should offer a rational approach to prevent re-emergent self-reactive lymphocytes by establishing solid, life-long immune tolerance to causative self-antigen. Indeed, we have recently demonstrated the success of this combination approach to prevent and cure an experimental autoimmune disease. We suggest that this combination strategy has the potential for translation to treat human autoimmune diseases in which causative self-antigens are known.
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Affiliation(s)
- Frank Alderuccio
- Department of Immunology, Nursing and Health Sciences, Monash University, Victoria 3181, Australia.
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Giannoukakis N, Phillips B, Trucco M. Toward a cure for type 1 diabetes mellitus: diabetes-suppressive dendritic cells and beyond. Pediatr Diabetes 2008; 9:4-13. [PMID: 18540865 DOI: 10.1111/j.1399-5448.2008.00401.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Insulin has been the gold standard therapy for diabetes since its discovery and commercial availability. It remains the only pharmacologic therapy for type 1 diabetes (T1D), an autoimmune disease in which autoreactive T cells specifically kill the insulin-producing beta cells. Nevertheless, not even molecularly produced insulin administered four or five times per day can provide a physiologic regulation able to prevent the complications that account for the morbidity and mortality of diabetic patients. Also, insulin does not eliminate the T1D hallmark: beta-cell-specific autoimmunity. In other words, insulin is not a 'cure'. A successful cure must meet the following criteria: (i) it must either replace or maintain the functional integrity of the natural, insulin-producing tissue, the endocrine islets of Langerhans' and, more specifically, the insulin-producing beta cells; (ii) it must, at least, control the autoimmunity or eliminate it altogether; and (iii) it must be easy to apply to a large number of patients. Criterion 1 has been partially realized by allogeneic islet transplantation. Criterion 2 has been partially realized using monoclonal antibodies specific for T-cell surface proteins. Criterion 3 has yet to be realized, given that most of the novel therapies are currently quasi-patient-specific. Herein, we outline the current status of non-insulin-based therapies for T1D, with a focus on cell-based immunomodulation which we propose can achieve all three criteria illustrated above.
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Affiliation(s)
- Nick Giannoukakis
- Division of Immunogenetics, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
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Yaghoubi SS, Creusot RJ, Ray P, Fathman CG, Gambhir SS. Multimodality imaging of T-cell hybridoma trafficking in collagen-induced arthritic mice: image-based estimation of the number of cells accumulating in mouse paws. JOURNAL OF BIOMEDICAL OPTICS 2007; 12:064025. [PMID: 18163841 DOI: 10.1117/1.2821415] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Appropriate targeting of therapeutic cells is essential in adoptive cellular gene therapy (ACGT). Imaging cell trafficking in animal models and patients will guide development of ACGT protocols. Collagen type II (C-II)-specific T cell hybridomas are transduced with a lentivirus carrying a triple fusion reporter gene (TFR) construct consisting of a fluorescent reporter gene (RG), a bioluminescent RG (hRluc), and a positron emission tomography (PET) RG. Collagen-induced arthritic (CIA) mice are scanned with a bioluminescence imaging camera before and after implantation of various known cell quantities in their paws. Linear regression analysis yields equations relating two parameters of image signal intensity in mice paws to the quantity of hRluc expressing cells in the paws. Afterward, trafficking of intravenously injected cells is studied by quantitative analysis of bioluminescence images. Comparison of the average cell numbers does not demonstrate consistently higher accumulation of T-cell hybridomas in the paws with higher inflammation scores, and injecting more cells does not cause increased accumulation. MicroPET images illustrate above background signal in the inflamed paws and chest areas of CIA mice. The procedures described in this study can be used to derive equations for cells expressing other bioluminescent RGs and in other animal models.
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Affiliation(s)
- Shahriar S Yaghoubi
- Stanford University, Department of Radiology, Bio-X, Molecular Imaging Program, Stanford, California 94305-5427, USA
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Trucco M, Giannoukakis N. Immunoregulatory dendritic cells to prevent and reverse new-onset Type 1 diabetes mellitus. Expert Opin Biol Ther 2007; 7:951-63. [PMID: 17665986 DOI: 10.1517/14712598.7.7.951] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Herein, the authors provide an overview of where dendritic cells lie in the immunopathology of autoimmune Type 1 diabetes mellitus and how dendritic cell-based therapy may be usefully translated to treat and reverse the disease. The immunopathology of Type 1 diabetes mellitus offers a number of windows at which immunotherapy can be applied to delay, stop and even reverse the autoimmune processes, especially in light of the recent antibody-based accomplishment of improvement in residual beta-cell mass function. As in almost all cell-specific inflammatory processes, dendritic cells are central regulators of diabetes onset and progression. This realisation, along with accumulating data confirming a role for dendritic cells in maintaining and inducing tolerance in multiple therapeutic settings, has prompted a line of investigation to identify the most effective embodiments of dendritic cells for diabetes immunotherapy.
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Affiliation(s)
- Massimo Trucco
- Children's Hospital of Pittsburgh, Diabetes Institute, Pittsburgh, PA 15213, USA
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Angyal A, Prechl J, Sármay G. Possible therapeutic applications of single-chain antibodies in systemic autoimmune diseases. Expert Opin Biol Ther 2007; 7:691-704. [PMID: 17477806 DOI: 10.1517/14712598.7.5.691] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
B cells participate in the induction and maintenance of systemic autoimmune diseases, such as rheumatoid arthritis and systemic lupus erythematosus, via production of pathogenic autoantibodies, contributing to the formation of immune complexes. Immune complex deposition in the kidney and joints causes inflammation and organ destruction, and chemokine production enhances T cell activation and tissue damage. The development of the disorder depends on several factors, for example, genetic susceptibility, environmental factors or immune dysregulation. Traditional therapies, which aimed at the alleviation of symptoms, are giving way to biological therapies with the potential of disrupting disease progression. This article focuses on antibody therapies, especially on the applications of single-chain antibodies, as new biological agents for the treatment of systemic autoimmune disorders.
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Affiliation(s)
- Adrienn Angyal
- Eötvös Loránd University, Department of Immunology, H-1117 Budapest, Pázmány Péter s.1/c, Hungary.
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Warrington KH, Herzog RW. Treatment of human disease by adeno-associated viral gene transfer. Hum Genet 2006; 119:571-603. [PMID: 16612615 DOI: 10.1007/s00439-006-0165-6] [Citation(s) in RCA: 95] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2006] [Accepted: 02/28/2006] [Indexed: 11/24/2022]
Abstract
During the past decade, in vivo administration of viral gene transfer vectors for treatment of numerous human diseases has been brought from bench to bedside in the form of clinical trials, mostly aimed at establishing the safety of the protocol. In preclinical studies in animal models of human disease, adeno-associated viral (AAV) vectors have emerged as a favored gene transfer system for this approach. These vectors are derived from a replication-deficient, non-pathogenic parvovirus with a single-stranded DNA genome. Efficient gene transfer to numerous target cells and tissues has been described. AAV is particularly efficient in transduction of non-dividing cells, and the vector genome persists predominantly in episomal forms. Substantial correction, and in some instances complete cure, of genetic disease has been obtained in animal models of hemophilia, lysosomal storage disorders, retinal diseases, disorders of the central nervous system, and other diseases. Therapeutic expression often lasted for months to years. Treatments of genetic disorders, cancer, and other acquired diseases are summarized in this review. Vector development, results in animals, early clinical experience, as well as potential hurdles and challenges are discussed.
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Affiliation(s)
- Kenneth H Warrington
- Cellular and Molecular Therapy, Department of Pediatrics, University of Florida, Gainesville, FL 32615-9586, USA
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Tarner IH, Neumann E, Gay S, Fathman CG, Müller-Ladner U. Developing the concept of adoptive cellular gene therapy of rheumatoid arthritis. Autoimmun Rev 2005; 5:148-52. [PMID: 16431349 DOI: 10.1016/j.autrev.2005.09.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Progressive destruction of articular cartilage and bone is the pivotal problem of rheumatoid arthritis (RA). Joint destruction is the cause of severe disability and determines the long-term outcome of disease. Conventional therapy does not control this destructive process sufficiently and the anti-rheumatic drugs available today can cause severe systemic adverse effects. Local application of chondroprotective and osteoprotective agents by means of gene therapy would be an attractive alternative to conventional therapy of RA and could provide long-term expression of the therapeutic agents and minimize systemic adverse effects. For this purpose, we have developed the concept of adoptive cellular gene therapy. This treatment strategy is based on using genetically engineered cells that home specifically to sites of autoimmune inflammation and thus allow local delivery of therapeutic gene products. Ex vivo transduction of these cells avoids systemic exposure of the host to the transgene-encoding vector and thus adds to the safety of this approach. In this article of the CIS Spring School in Autoimmune Diseases 2005 proceedings, we review our work on developing the strategy of adoptive cellular gene therapy and summarize recent advances in the evaluation of therapeutic effects and the identification of novel therapeutic targets.
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Affiliation(s)
- Ingo H Tarner
- University Hospital Giessen, Department of Internal Medicine and Rheumatology, Division of Rheumatology and Clinical Immunology, Kerckhoff-Klinik, Bad Nauheim, Germany.
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Creusot RJ, Fathman CG, Müller-Ladner U, Tarner IH. Targeted gene therapy of autoimmune diseases: advances and prospects. Expert Rev Clin Immunol 2005; 1:385-404. [PMID: 20476990 DOI: 10.1586/1744666x.1.3.385] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Idealized gene therapy of autoimmune diseases would mean getting the right drug to the right place at the right time to affect the right mechanism of action. In other words, a specific gene therapy strategy needs to have functional, spatial and temporal specificity. Functional specificity implies targeting the cellular, molecular and/or genetic mechanisms relevant to the disease, without affecting nondiseased organs or tissues through mechanisms that cause adverse effects. Spatial specificity means the delivery of the therapeutic agent exclusively to sites and cells that are relevant to the disease. Temporal specificity is, in principle, synonymous with controlled on-demand expression of the therapeutic gene and thus represents a major safety feature. This article reviews recent advances in strategies to use gene therapy in the treatment of autoimmune diseases.
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Affiliation(s)
- Rémi J Creusot
- Stanford University School of Medicine, Department of Medicine, Division of Immunology and Rheumatology, CCSR Building, Room 2240, 269 Campus Drive, Stanford, CA 94305-5166, USA.
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Alderuccio F, Toh BH. Induction of tolerance to self-antigens using genetically modified bone marrow cells. Expert Opin Biol Ther 2005; 4:1007-14. [PMID: 15268669 DOI: 10.1517/14712598.4.7.1007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The challenge of finding a lasting cure for autoimmune disease(s) has not been met. Although the use of systemic anti-inflammatory agents still dominates the treatment of these diseases, there is a push towards developing novel and more specific strategies. In addressing autoimmunity, there is the intrinsic need to understand the mechanisms that lead to the development and maintenance of immunological tolerance to self-antigens. Experimental evidence has shown that directed antigen expression in the thymus can induce immunological tolerance to that antigen. This forms the cornerstone of one strategy directed towards the cure of autoimmunity. In this strategy, individuals with autoimmune disease are transplanted with bone marrow stem cells that have been genetically modified and in this way allow expression of the self-antigen in the thymus.
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Affiliation(s)
- Frank Alderuccio
- Department of Immunology, Central and Eastern Clinical School, Monash University, Commercial Road, Prahran, Melbourne, Australia, 3181.
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Hildebrandt IJ, Gambhir SS. Molecular imaging applications for immunology. Clin Immunol 2004; 111:210-24. [PMID: 15137954 DOI: 10.1016/j.clim.2003.12.018] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2003] [Accepted: 12/23/2003] [Indexed: 01/06/2023]
Abstract
The use of multimodality molecular imaging has recently facilitated the study of molecular and cellular events in living subjects in a noninvasive and repetitive manner to improve the diagnostic capability of traditional assays. The noninvasive imaging modalities utilized for both small animal and human imaging include positron emission tomography (PET), single photon emission computed tomography (SPECT), magnetic resonance imaging (MRI), ultrasound, and computed tomography (CT). Techniques specific to small-animal imaging include bioluminescent imaging (BIm) and fluorescent imaging (FIm). Molecular imaging permits the study of events within cells, the examination of cell trafficking patterns that relate to inflammatory diseases and metastases, and the ability to rapidly screen new drug treatments for distribution and effectiveness. In this paper, we will review the current field of molecular imaging assays (especially those utilizing PET and BIm modalities) and examine how they might impact animal models and human disease in the field of clinical immunology.
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Affiliation(s)
- Isabel Junie Hildebrandt
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA 94305, USA
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Baum LG, Blackall DP, Arias-Magallano S, Nanigian D, Uh SY, Browne JM, Hoffmann D, Emmanouilides CE, Territo MC, Baldwin GC. Amelioration of graft versus host disease by galectin-1. Clin Immunol 2003; 109:295-307. [PMID: 14697744 DOI: 10.1016/j.clim.2003.08.003] [Citation(s) in RCA: 101] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Graft versus host disease is a significant cause of morbidity and mortality following allogeneic hematopoietic stem cell transplantation. Galectin-1, a mammalian lectin that modulates T cell function and apoptosis, has been shown to be immunomodulatory in animal models of autoimmune disease. We investigated the efficacy of galectin-1 in a murine model of graft versus host disease and found that 68% of galectin-1-treated mice survived, compared to 3% of vehicle-treated mice. Galectin-1-treated animals also had reduced inflammatory infiltrates in tissues compared to animals treated with vehicle alone. Galectin-1 did not affect engraftment of donor hematopoietic cells. However, galectin-1-treated animals demonstrated increased cellularity in bone marrow and spleen with increased numbers of splenic B cells and CD4 T cells compared to those animals treated with vehicle alone. Galectin-1 treatment also significantly improved reconstitution of normal splenic architecture following transplant. Production of type I cytokines interleukin-2 (IL-2) and interferon-gamma was reduced in splenocytes derived from galectin-1-treated transplanted mice when compared to animals treated with vehicle alone, while production of the type II cytokines, IL-4 and IL-10, was similar between the two groups of animals. Although splenocytes from galectin-1-treated transplanted animals responded to both third party antigens and leukemic challenge, host alloreactivity was significantly reduced when compared to cells from vehicle-treated animals. These results demonstrate that galectin-1 therapy is capable of increasing survival and suppressing the graft versus host immune response without compromising engraftment or immune reconstitution following allogeneic hematopoietic stem cell transplant.
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Affiliation(s)
- Linda G Baum
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA 90095, USA
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Mandl S, Schimmelpfennig C, Edinger M, Negrin RS, Contag CH. Understanding immune cell trafficking patterns via in vivo bioluminescence imaging. J Cell Biochem 2003; 39:239-48. [PMID: 12552623 DOI: 10.1002/jcb.10454] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Cell migration is a key aspect of the development of the immune system and mediating an immune response. There is extensive and continual redistribution of cells to different anatomic sites throughout the body. These trafficking patterns control immune function, tissue regeneration, and host responses to insult. The ability to monitor the fate and function of cells, therefore, is imperative to both understanding the role of specific cells in disease processes and to devising rational therapeutic strategies. Determining the fate of immune cells and understanding the functional changes associated with migration and proliferation require effective means of obtaining in vivo measurements in the context of intact organ systems. A variety of imaging methods are available to provide structural information, such as X-ray CT and MRI, but only recently new tools have been developed that reveal cellular and molecular changes as they occur within living animals. We have pioneered one of these techniques that is based on the observations that light passes through mammalian tissues, and that luciferases can serve as internal biological sources of light in the living body. This method, called in vivo bioluminescence imaging, is a rapid and noninvasive functional imaging method that employs light-emitting reporters and external photon detection to follow biological processes in living animals in real time. This imaging strategy enables the studies of trafficking patterns for a variety of cell types in live animal models of human biology and disease. Using this approach we have elucidated the spatiotemporal trafficking patterns of lymphocytes within the body. In models of autoimmune disease we have used the migration of "pathogenic" immune cells to diseased tissues as a means to locally deliver and express therapeutic proteins. Similarly, we have determined the tempo of NK-T cell migration to neoplastic lesions and measured their life span in vivo. Using bioluminescence imaging individual groups of animals can be followed over time significantly reducing the number of animals per experiment, and improving the statistical significance of a study since changes in a given population can be studied over time. Such rapid assays that reveal cell fates in vivo will increase our basic understanding of the molecular signals that control these migratory pathways and will substantially speed up the development and evaluation of therapies.
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Affiliation(s)
- Stefanie Mandl
- Department of Pediatrics, Stanford University, Stanford, California 94305, USA
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Abstract
Gene therapy holds great promise. Somatic gene therapy has the potential to treat a wide range of disorders, including inherited conditions, cancers, and infectious diseases. Early progress has already been made in the treatment of a range of disorders. Ethical issues surrounding somatic gene therapy are primarily those concerned with safety. Germline gene therapy is theoretically possible but raises serious ethical concerns concerning future generations.
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Affiliation(s)
- Kevin R Smith
- School of Contemporary Sciences, University of Abertay Dundee, Dundee, Scotland, UK.
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Abstract
Gene therapy has been applied in a variety of experimental models of autoimmunity with some success. In this article, we outline recent developments in gene therapy vectors, discuss advantages and disadvantages of each, and highlight their recent applications in autoimmune models. We also consider progress in vector targeting and components for regulating transgene expression, which will both improve gene therapy safety and empower gene therapy to fullfil its potential as a therapeutic modality. In conclusion, we consider candidate vectors that satisfy requirements for application in the principal therapeutic strategies in which gene therapy will be applied to autoimmune conditions.
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Affiliation(s)
- D J Gould
- 1Bone & Joint Research Unit, Barts & The London, Queen Mary's Medical School, University of London, London, UK
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