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Manni G, Gargaro M, Ricciuti D, Fontana S, Padiglioni E, Cipolloni M, Mazza T, Rosati J, di Veroli A, Mencarelli G, Pieroni B, Silva Barcelos EC, Scalisi G, Sarnari F, di Michele A, Pascucci L, de Franco F, Zelante T, Antognelli C, Cruciani G, Talesa VN, Romani R, Fallarino F. Amniotic fluid stem cell-derived extracellular vesicles educate type 2 conventional dendritic cells to rescue autoimmune disorders in a multiple sclerosis mouse model. J Extracell Vesicles 2024; 13:e12446. [PMID: 38844736 PMCID: PMC11156524 DOI: 10.1002/jev2.12446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 04/11/2024] [Accepted: 04/15/2024] [Indexed: 06/10/2024] Open
Abstract
Dendritic cells (DCs) are essential orchestrators of immune responses and represent potential targets for immunomodulation in autoimmune diseases. Human amniotic fluid secretome is abundant in immunoregulatory factors, with extracellular vesicles (EVs) being a significant component. However, the impact of these EVs on dendritic cells subsets remain unexplored. In this study, we investigated the interaction between highly purified dendritic cell subsets and EVs derived from amniotic fluid stem cell lines (HAFSC-EVs). Our results suggest that HAFSC-EVs are preferentially taken up by conventional dendritic cell type 2 (cDC2) through CD29 receptor-mediated internalization, resulting in a tolerogenic DC phenotype characterized by reduced expression and production of pro-inflammatory mediators. Furthermore, treatment of cDC2 cells with HAFSC-EVs in coculture systems resulted in a higher proportion of T cells expressing the regulatory T cell marker Foxp3 compared to vehicle-treated control cells. Moreover, transfer of HAFSC-EV-treated cDC2s into an EAE mouse model resulted in the suppression of autoimmune responses and clinical improvement. These results suggest that HAFSC-EVs may serve as a promising tool for reprogramming inflammatory cDC2s towards a tolerogenic phenotype and for controlling autoimmune responses in the central nervous system, representing a potential platform for the study of the effects of EVs in DC subsets.
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Affiliation(s)
- Giorgia Manni
- Department of Medicine and SurgeryUniversity of PerugiaPerugiaItaly
- Extracellular Vesicles network (EV‐net) of the University of PerugiaPerugiaItaly
| | - Marco Gargaro
- Department of Pharmaceutical ScienceUniversity of PerugiaPerugiaItaly
| | - Doriana Ricciuti
- Department of Medicine and SurgeryUniversity of PerugiaPerugiaItaly
| | - Simona Fontana
- Department of Biomedicine, Neurosciences and advanced Diagnostics (Bi.N.D) School of MedicineUniversity of PalermoPalermoItaly
| | | | | | - Tommaso Mazza
- Bioinformatics unit, Fondazione IRCCS Casa Sollievo della SofferenzaSan Giovanni RotondoItaly
| | - Jessica Rosati
- Cellular Reprogramming Unit, Fondazione IRCCS Casa Sollievo della SofferenzaSan Giovanni RotondoItaly
| | - Alessandra di Veroli
- Department of Chemistry, Biology and BiotechnologyUniversity of PerugiaPerugiaItaly
| | | | | | | | - Giulia Scalisi
- Department of Medicine and SurgeryUniversity of PerugiaPerugiaItaly
| | | | - Alessandro di Michele
- Extracellular Vesicles network (EV‐net) of the University of PerugiaPerugiaItaly
- Department of Physics and GeologyUniversity of PerugiaPerugiaItaly
| | - Luisa Pascucci
- Extracellular Vesicles network (EV‐net) of the University of PerugiaPerugiaItaly
- Department of Veterinary MedicineUniversity of PerugiaPerugiaItaly
| | | | - Teresa Zelante
- Department of Medicine and SurgeryUniversity of PerugiaPerugiaItaly
| | | | - Gabriele Cruciani
- Department of Chemistry, Biology and BiotechnologyUniversity of PerugiaPerugiaItaly
| | | | - Rita Romani
- Department of Medicine and SurgeryUniversity of PerugiaPerugiaItaly
- Extracellular Vesicles network (EV‐net) of the University of PerugiaPerugiaItaly
| | - Francesca Fallarino
- Department of Medicine and SurgeryUniversity of PerugiaPerugiaItaly
- Extracellular Vesicles network (EV‐net) of the University of PerugiaPerugiaItaly
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Soe PP, Gaignage M, Mandour MF, Marbaix E, Van Snick J, Coutelier JP. Lactate Dehydrogenase-Elevating Virus Infection Inhibits MOG Peptide Presentation by CD11b+CD11c+ Dendritic Cells in a Mouse Model of Multiple Sclerosis. Int J Mol Sci 2024; 25:4950. [PMID: 38732169 PMCID: PMC11084452 DOI: 10.3390/ijms25094950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 04/22/2024] [Accepted: 04/25/2024] [Indexed: 05/13/2024] Open
Abstract
Infections may affect the course of autoimmune inflammatory diseases of the central nervous system (CNS), such as multiple sclerosis (MS). Infections with lactate dehydrogenase-elevating virus (LDV) protected mice from developing experimental autoimmune encephalomyelitis (EAE), a mouse counterpart of MS. Uninfected C57BL/6 mice immunized with the myelin oligodendrocyte glycoprotein peptide (MOG35-55) experienced paralysis and lost weight at a greater rate than mice who had previously been infected with LDV. LDV infection decreased the presentation of the MOG peptide by CD11b+CD11c+ dendritic cells (DC) to pathogenic T lymphocytes. When comparing non-infected mice to infected mice, the histopathological examination of the CNS showed more areas of demyelination and CD45+ and CD3+, but not Iba1+ cell infiltration. These results suggest that the protective effect of LDV infection against EAE development is mediated by a suppression of myelin antigen presentation by a specific DC subset to autoreactive T lymphocytes. Such a mechanism might contribute to the general suppressive effect of infections on autoimmune diseases known as the hygiene hypothesis.
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Affiliation(s)
- Pyone Pyone Soe
- de Duve Institute, Universite Catholique de Louvain, 1200 Brussels, Belgium; (P.P.S.); (M.G.); (M.F.M.); (E.M.)
| | - Mélanie Gaignage
- de Duve Institute, Universite Catholique de Louvain, 1200 Brussels, Belgium; (P.P.S.); (M.G.); (M.F.M.); (E.M.)
| | - Mohamed F. Mandour
- de Duve Institute, Universite Catholique de Louvain, 1200 Brussels, Belgium; (P.P.S.); (M.G.); (M.F.M.); (E.M.)
- Department of Clinical Pathology, Faculty of Medicine, Suez Canal University, Ismailia 8366004, Egypt
| | - Etienne Marbaix
- de Duve Institute, Universite Catholique de Louvain, 1200 Brussels, Belgium; (P.P.S.); (M.G.); (M.F.M.); (E.M.)
- Cliniques Universitaires Saint-Luc, Université catholique de Louvain, 1200 Brussels, Belgium
| | - Jacques Van Snick
- Ludwig Institute for Cancer Research, Université Catholique de Louvain, 1200 Brussels, Belgium;
| | - Jean-Paul Coutelier
- de Duve Institute, Universite Catholique de Louvain, 1200 Brussels, Belgium; (P.P.S.); (M.G.); (M.F.M.); (E.M.)
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Moorman CD, Yu S, Briseno CG, Phee H, Sahoo A, Ramrakhiani A, Chaudhry A. CAR-T cells and CAR-Tregs targeting conventional type-1 dendritic cell suppress experimental autoimmune encephalomyelitis. Front Immunol 2023; 14:1235222. [PMID: 37965348 PMCID: PMC10641730 DOI: 10.3389/fimmu.2023.1235222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 10/04/2023] [Indexed: 11/16/2023] Open
Abstract
Conventional type 1 dendritic cells (DC1) contribute to the development of pathogenic T helper type 1 (Th1) cells in part via the production of the proinflammatory cytokine interleukin-12. Thus, depletion of DC1 has the potential to dampen autoimmune responses. Here, we developed X-C motif chemokine receptor 1 (XCR1)-specific chimeric antigen receptor (CAR)-T cells and CAR-Tregs that specifically targeted DC1. XCR1 CAR-T cells were successfully generated as CD4+ and CD8+ T cells, expressed XCR1 CAR efficiently, and induced XCR1-dependent activation, cytokine production and proliferation. XCR1 CAR-T cells selectively depleted DC1 when transferred into RAG2-/- mice with a compensatory increase in conventional type 2 DC (DC2) and plasmacytoid DC (pDC). XCR1 CAR-T cell-mediated depletion of DC1 modestly suppressed the onset of Th1-driven experimental autoimmune encephalomyelitis (EAE), an animal model of multiple sclerosis. Diphtheria toxin-mediated DC1 depletion in XCR1-diphtheria toxin receptor mice also suppressed EAE, suggesting that DC1 depletion was responsible for EAE suppression. XCR1 CAR-Tregs were successfully generated and suppressed effector T cells in the presence of XCR1+ cells. Therapeutic treatment with XCR1 CAR-Tregs suppressed Th1-driven EAE. Therefore, we conclude that depletion of DC1 with XCR1 CAR-T cells or immune suppression with XCR1 CAR-Tregs can modestly suppress Th1-driven EAE.
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Affiliation(s)
- Cody D. Moorman
- Amgen Research, Amgen Inc., South San Francisco, CA, United States
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Jones KM, Zhan B, Ernste KJ, Villar MJ, Bisht N, Nguyen D, Chang LY, Poveda C, Robinson GJ, Trivedi AJ, Hofferek CJ, Decker WK, Konduri V. Immunomodulatory proteins from hookworms reduce cardiac inflammation and modulate regulatory responses in a mouse model of chronic Trypanosoma cruzi infection. FRONTIERS IN PARASITOLOGY 2023; 2:1244604. [PMID: 38239430 PMCID: PMC10795693 DOI: 10.3389/fpara.2023.1244604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/22/2024]
Abstract
Introduction Hookworms are parasitic helminths that secrete a variety of proteins that induce anti-inflammatory immune responses, stimulating increased CD4 + Foxp3+ regulatory T cells and IL-10 production. Hookworm-derived recombinant proteins AIP-1 and AIP-2 have been shown to reduce inflammation in mouse models of inflammatory bowel disease and inflammatory airway disease by inducing CD4+Foxp3+ cells and IL-10 production. In contrast, chronic infection with the protozoal parasite Trypanosoma cruzi, the causative agent of Chagas disease, leads to chronic inflammation in tissues. Persistence of the parasites in tissues drives chronic low-grade inflammation, with increased infiltration of inflammatory cells into the heart, accompanied by increased production of inflammatory cytokines. There are no current antiparasitic drugs that effectively reduce or prevent chronic myocarditis caused by the onset of Chagas disease, thus new therapies are urgently needed. Therefore, the impact of AIP-1 and AIP-2 on myocarditis was investigated in a mouse model of chronic T. cruzi infection. Methods Female BALB/c mice infected with bioluminescent T. cruzi H1 strain trypomastigotes for 70 days were treated once daily for 7 days with 1mg/kg AIP-1 or AIP-2 protein by intraperitoneal injection. Control mice were left untreated or treated once daily for 14 days with 25mg/kg aspirin in drinking water. At 84 days of infection, splenocytes, cardiac tissue and serum were collected for evaluation. Results Treatment with both AIP-1 and AIP-2 proteins significantly reduced cardiac cellular infiltration, and reduced cardiac levels of IFNγ, IL-6 and IL-2. AIP-2 treatment reduced cardiac expression of COX-2. Further, while incubation with AIP-1 and AIP-2 proteins did not induce a significant upregulation of an immunoregulatory phenotype in dendritic cells (DC), there was a modest upregulation of CD11c +CD11b+MHCII+SIRPα+ expression, suggesting a regulatory phenotype. Ex-vivo stimulation of splenocytes from the treatment groups with AIP-1 loaded DC induced reduced levels of cytotoxic and pro-inflammatory T cells, stimulation with AIP-2 loaded DC specifically induced enhanced levels of CD4+CD25+Foxp3+ regulatory T cells among treatment groups. Discussion All in vivo and in vitro results demonstrate that hookworm-derived AIP-1 and AIP-2 proteins reduce T. cruzi induced cardiac inflammation, possibly through multiple anti-inflammatory mechanisms.
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Affiliation(s)
- Kathryn M. Jones
- National School of Tropical Medicine, Department of Pediatrics, Baylor College of Medicine, Houston, TX, United States
- Texas Children’s Hospital Center for Vaccine Development, Houston, TX, United States
| | - Bin Zhan
- National School of Tropical Medicine, Department of Pediatrics, Baylor College of Medicine, Houston, TX, United States
- Texas Children’s Hospital Center for Vaccine Development, Houston, TX, United States
| | - Keenan J. Ernste
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX, United States
| | - Maria Jose Villar
- National School of Tropical Medicine, Department of Pediatrics, Baylor College of Medicine, Houston, TX, United States
- Texas Children’s Hospital Center for Vaccine Development, Houston, TX, United States
| | - Nalini Bisht
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX, United States
| | - Duc Nguyen
- Center for Comparative Medicine, Baylor College of Medicine, Houston, TX, United States
| | - Li-Yen Chang
- Department of Medical Microbiology, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Cristina Poveda
- National School of Tropical Medicine, Department of Pediatrics, Baylor College of Medicine, Houston, TX, United States
- Texas Children’s Hospital Center for Vaccine Development, Houston, TX, United States
| | - Gonteria J. Robinson
- Molecular & Human Genetics Department, Baylor College of Medicine, Houston, TX, United States
| | - Akshar J. Trivedi
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX, United States
| | - Colby J. Hofferek
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX, United States
| | - William K. Decker
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX, United States
- Dan L. Duncan Cancer, Baylor College of Medicine, Houston, TX, United States
- Center for Cell and Gene Therapy, Baylor College of Medicine, Houston, TX, United States
| | - Vanaja Konduri
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, TX, United States
- Dan L. Duncan Cancer, Baylor College of Medicine, Houston, TX, United States
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Anwar A, Sapra L, Gupta N, Ojha RP, Verma B, Srivastava RK. Fine-tuning osteoclastogenesis: An insight into the cellular and molecular regulation of osteoclastogenesis. J Cell Physiol 2023. [PMID: 37183350 DOI: 10.1002/jcp.31036] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 04/21/2023] [Accepted: 04/25/2023] [Indexed: 05/16/2023]
Abstract
Osteoclasts, the bone-resorbing cells, are essential for the bone remodeling process and are involved in the pathophysiology of several bone-related diseases. The extensive corpus of in vitro research and crucial mouse model studies in the 1990s demonstrated the key roles of monocyte/macrophage colony-stimulating factor, receptor activator of nuclear factor kappa B ligand (RANKL) and integrin αvβ3 in osteoclast biology. Our knowledge of the molecular mechanisms by which these variables control osteoclast differentiation and function has significantly advanced in the first decade of this century. Recent developments have revealed a number of novel insights into the fundamental mechanisms governing the differentiation and functional activity of osteoclasts; however, these mechanisms have not yet been adequately documented. Thus, in the present review, we discuss various regulatory factors including local and hormonal factors, innate as well as adaptive immune cells, noncoding RNAs (ncRNAs), etc., in the molecular regulation of the intricate and tightly regulated process of osteoclastogenesis. ncRNAs have a critical role as epigenetic controllers of osteoclast physiologic activities, including differentiation and bone resorption. The primary ncRNAs, which include micro-RNAs, circular RNAs, and long noncoding RNAs, form a complex network that affects gene transcription activities associated with osteoclast biological activity. Greater knowledge of the involvement of ncRNAs in osteoclast biological activities will contribute to the treatment and management of several skeletal diseases such as osteoporosis, osteoarthritis, rheumatoid arthritis, etc. Moreover, we further outline potential therapies targeting these regulatory pathways of osteoclastogenesis in distinct bone pathologies.
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Affiliation(s)
- Aleena Anwar
- Translational Immunology, Osteoimmunology & Immunoporosis Lab (TIOIL), Department of Biotechnology, All India Institute of Medical Sciences (AIIMS), New Delhi, India
| | - Leena Sapra
- Translational Immunology, Osteoimmunology & Immunoporosis Lab (TIOIL), Department of Biotechnology, All India Institute of Medical Sciences (AIIMS), New Delhi, India
| | - Navita Gupta
- Department of Allied Health Sciences, Chitkara School of Health Sciences, Chitkara University, Chandigarh, Punjab, India
| | - Rudra P Ojha
- Department of Zoology, Nehru Gram Bharati University, Prayagraj, Uttar Pradesh, India
| | - Bhupendra Verma
- Translational Immunology, Osteoimmunology & Immunoporosis Lab (TIOIL), Department of Biotechnology, All India Institute of Medical Sciences (AIIMS), New Delhi, India
| | - Rupesh K Srivastava
- Translational Immunology, Osteoimmunology & Immunoporosis Lab (TIOIL), Department of Biotechnology, All India Institute of Medical Sciences (AIIMS), New Delhi, India
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Zhu Y, Winer D, Goh C, Shrestha A. Injectable thermosensitive hydrogel to modulate tolerogenic dendritic cells under hyperglycemic condition. Biomater Sci 2023; 11:2091-2102. [PMID: 36723183 DOI: 10.1039/d2bm01881k] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Hyperglycemia associated with diabetes mellitus is a significant risk factor for periodontitis and it polarizes the immune cells towards an inflammatory state. Specific biomaterials can deliver therapeutic or immunomodulatory agents to regulate the excessive periodontal inflammation. Dendritic cells (DCs) bridge the innate and adaptive immune systems and are crucially involved in periodontitis. Thus, targeting DCs is an attractive treatment option for diabetic periodontitis, which, by modulating the downstream adaptive immune cells could regulate the host immune responses. In this study, a chitosan-based thermosensitive injectable self-assembled hydrogel (TISH) was developed to modulate DCs towards a tolerogenic phenotype, which can induce regulatory T-cells to attenuate inflammation and promote healing. Granulocyte-macrophage colony-stimulating factor (GM-CSF) and resveratrol were loaded into TISH (TISH(G + R)) and were sustainably released. TISH demonstrated good biocompatibility and cell penetration in its porous structure. DCs grown in TISH(G + R) under an in vitro hyperglycemic condition showed reduced maturation and activation markers such as CD80, CD83 and CD86, while simultaneously upregulated tolerogenic genes such as FOXP3, SOCS3, TGFß and IL10. Co-culture of these tolerogenic DCs with naïve T-cells induced regulatory T-cells differentiation, evidenced by elevated gene expressions of FOXP3, TGFβ and IL-10. In vivo subcutaneous injection of TISH (G + R) into the mice showed significant infiltration of DCs and regulatory T-cells. In conclusion, TISH was developed and optimized as an injectable hydrogel to modulate DCs towards the tolerogenic phenotype and induce regulatory T-cells under hyperglycemia. TISH has promising potential to improve periodontal parameters in diabetic periodontitis.
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Affiliation(s)
- Yi Zhu
- Faculty of Dentistry, University of Toronto, 124 Edward Street, Toronto, ON, M5G 1G6, Canada.
| | - Daniel Winer
- Department of Laboratory Medicine and Pathobiology, University of Toronto, 1 King's College Circle, Toronto, ON, M5S 1A8, Canada.,Buck Institute for Research on Aging, 8001 Redwood Boulevard, Novato, CA 94945, USA.,Division of Cellular and Molecular Biology, Diabetes Research Group, Toronto General Hospital Research Institute (TGHRI), University Health Network, Toronto, ON, M5G 1L7, Canada.,Department of Pathology, University Health Network, Toronto, ON M5G 2C4, Canada
| | - Cynthia Goh
- Department of Chemistry, University of Toronto, 80 George Street, Toronto, ON, M5S 3H6, Canada.,Department of Materials Science and Engineering, University of Toronto, 84 College Street, Toronto, ON, M5S 3E4, Canada
| | - Annie Shrestha
- Faculty of Dentistry, University of Toronto, 124 Edward Street, Toronto, ON, M5G 1G6, Canada. .,Department of Laboratory Medicine and Pathobiology, University of Toronto, 1 King's College Circle, Toronto, ON, M5S 1A8, Canada
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Li J, Lu L, Binder K, Xiong J, Ye L, Cheng YH, Majri-Morrison S, Lu W, Lee JW, Zhang Z, Wu YZ, Zheng L, Lenardo MJ. Mechanisms of antigen-induced reversal of CNS inflammation in experimental demyelinating disease. SCIENCE ADVANCES 2023; 9:eabo2810. [PMID: 36857453 PMCID: PMC9977187 DOI: 10.1126/sciadv.abo2810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 12/27/2022] [Indexed: 06/18/2023]
Abstract
Autoimmune central nervous system (CNS) demyelinating diseases are a major public health burden and poorly controlled by current immunosuppressants. More precise immunotherapies with higher efficacy and fewer side effects are sought. We investigated the effectiveness and mechanism of an injectable myelin-based antigenic polyprotein MMPt (myelin oligodendrocyte glycoprotein, myelin basic protein and proteolipid protein, truncated). We find that it suppresses mouse experimental autoimmune encephalomyelitis without major side effects. MMPt induces rapid apoptosis of the encephalitogenic T cells and suppresses inflammation in the affected CNS. Intravital microscopy shows that MMPt is taken up by perivascular F4/80+ cells but not conventional antigen-presenting dendritic cells, B cells, or microglia. MMPt-stimulated F4/80+ cells induce reactive T cell immobilization and apoptosis in situ, resulting in reduced infiltration of inflammatory cells and chemokine production. Our study reveals alternative mechanisms that explain how cognate antigen suppresses CNS inflammation and may be applicable for effectively and safely treating demyelinating diseases.
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Affiliation(s)
- Jian Li
- Molecular Development of the Immune System Section, Laboratory of Immune System Biology National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
- Institute of Immunology, Third Military Medical University (Army Medical University), Chongqing, China
| | - Lisen Lu
- MoE Key Laboratory for Biomedical Photonics, Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Kyle Binder
- Molecular Development of the Immune System Section, Laboratory of Immune System Biology National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
- Neuroimmunology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
| | - Jian Xiong
- Institute of Immunology, Third Military Medical University (Army Medical University), Chongqing, China
| | - Lilin Ye
- Institute of Immunology, Third Military Medical University (Army Medical University), Chongqing, China
| | - Yan H. Cheng
- Molecular Development of the Immune System Section, Laboratory of Immune System Biology National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
- NIAID Clinical Genomics Program, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Sonia Majri-Morrison
- Molecular Development of the Immune System Section, Laboratory of Immune System Biology National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Wei Lu
- Molecular Development of the Immune System Section, Laboratory of Immune System Biology National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Jae W. Lee
- Molecular Development of the Immune System Section, Laboratory of Immune System Biology National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Zhihong Zhang
- MoE Key Laboratory for Biomedical Photonics, Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
| | - Yu-zhang Wu
- Institute of Immunology, Third Military Medical University (Army Medical University), Chongqing, China
| | - Lixin Zheng
- Molecular Development of the Immune System Section, Laboratory of Immune System Biology National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
- NIAID Clinical Genomics Program, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Michael J. Lenardo
- Molecular Development of the Immune System Section, Laboratory of Immune System Biology National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
- NIAID Clinical Genomics Program, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
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Ogbodo JO, Arazu AV, Iguh TC, Onwodi NJ, Ezike TC. Volatile organic compounds: A proinflammatory activator in autoimmune diseases. Front Immunol 2022; 13:928379. [PMID: 35967306 PMCID: PMC9373925 DOI: 10.3389/fimmu.2022.928379] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 06/30/2022] [Indexed: 11/13/2022] Open
Abstract
The etiopathogenesis of inflammatory and autoimmune diseases, including pulmonary disease, atherosclerosis, and rheumatoid arthritis, has been linked to human exposure to volatile organic compounds (VOC) present in the environment. Chronic inflammation due to immune breakdown and malfunctioning of the immune system has been projected to play a major role in the initiation and progression of autoimmune disorders. Macrophages, major phagocytes involved in the regulation of chronic inflammation, are a major target of VOC. Excessive and prolonged activation of immune cells (T and B lymphocytes) and overexpression of the master pro-inflammatory constituents [cytokine and tumor necrosis factor-alpha, together with other mediators (interleukin-6, interleukin-1, and interferon-gamma)] have been shown to play a central role in the pathogenesis of autoimmune inflammatory responses. The function and efficiency of the immune system resulting in immunostimulation and immunosuppression are a result of exogenous and endogenous factors. An autoimmune disorder is a by-product of the overproduction of these inflammatory mediators. Additionally, an excess of these toxicants helps in promoting autoimmunity through alterations in DNA methylation in CD4 T cells. The purpose of this review is to shed light on the possible role of VOC exposure in the onset and progression of autoimmune diseases.
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Affiliation(s)
- John Onyebuchi Ogbodo
- Department of Science Laboratory Technology, University of Nigeria, Nsukkagu, Enugu State, Nigeria
| | - Amarachukwu Vivan Arazu
- Department of Science Laboratory Technology, University of Nigeria, Nsukkagu, Enugu State, Nigeria
| | - Tochukwu Chisom Iguh
- Department of Plant Science and Biotechnology, University of Nigeria, Nsukka, Enugu State, Nigeria
| | - Ngozichukwuka Julie Onwodi
- Department of Pharmaceutical Technology and Industrial Pharmacy, University of Nigeria, Nsukka, Enugu State, Nigeria
| | - Tobechukwu Christian Ezike
- Department of Biochemistry, University of Nigeria, Nsukka, Enugu State, Nigeria
- *Correspondence: Tobechukwu Christian Ezike,
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Lee JM, Chen MH, Chou KY, Chao Y, Chen MH, Tsai CY. Novel immunoprofiling method for diagnosing SLE and evaluating therapeutic response. Lupus Sci Med 2022; 9:9/1/e000693. [PMID: 35738802 PMCID: PMC9226994 DOI: 10.1136/lupus-2022-000693] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 06/11/2022] [Indexed: 11/23/2022]
Abstract
Objective Diagnosis of SLE is based on clinical manifestations but is heterogeneous in early onset. Hence, we aimed to evaluate the feature of the immunoprofiling in patients with SLE and apply it to develop an immune signature algorithm for supporting SLE diagnosis. Methods We enrolled 13 newly diagnosed patients with SLE and 9 healthy controls (HCs) followed by analysing their immunoprofilings within their peripheral blood mononuclear cells (PBMCs) through flow cytometry. The immunoprofiling from the patients with SLE and HCs were ranked and formed an immune signature score. Besides, we enrolled four patients with SLE and monitored the changes in their immunoprofilings after immunosuppressant treatment. Results Among 93 immune cell subsets, 29 differed significantly between patients with SLE and HCs, and lower dendritic and natural killer cell percentages and a higher CD8+ T-cell percentage were identified in patients with SLE. In an investigation of immune-tolerant-related cell subsets, higher concentrations of CD8+ regulatory natural killer T cells, programmed cell death 1 (PD-1)+ T cells, and lower concentrations of programmed cell death ligand 1 (PD-L1)+ PBMCs were observed in the SLE group. The immune signature score from patients with SLE was significantly different from that from the HCs. After treatment, the disease activity of the four patients were tended to stable and percentages of PD-L1+ monocytes, PD-1+ CD4 T and CD8 T cells in patients with SLE exhibited positively and negatively correlation with the SLEDAI-2K (Systemic Lupus Erythematosus Disease Activity Index 2000) score, which might associate with the remission of SLE. Conclusions The comparison of immunprofiling between patients with SLE and HCs exhibited a distinct pattern. This difference and its application to immune signature algorithm shed light on the studies of SLE pathogenesis and immune-based diagnostic tool development in the future.
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Affiliation(s)
- Jan-Mou Lee
- Department of Advanced Research, FullHope Biomedical Co Ltd, New Taipei City, Taiwan
| | - Ming-Huang Chen
- Faculty of Medicine, National Yang Ming Chiao Tung University, Taipei City, Taiwan
| | - Kai-Yuan Chou
- Department of Advanced Research, FullHope Biomedical Co Ltd, New Taipei City, Taiwan
| | - Yee Chao
- Department of Oncology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Ming-Han Chen
- Faculty of Medicine, National Yang Ming Chiao Tung University, Taipei City, Taiwan .,Division of Allergy-Immunology-Rheumatology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Chang-Youh Tsai
- Division of Allergy-Immunology-Rheumatology, Taipei Veterans General Hospital, Taipei, Taiwan.,Faculty of Medicine, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
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10
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Piacente F, Bottero M, Benzi A, Vigo T, Uccelli A, Bruzzone S, Ferrara G. Neuroprotective Potential of Dendritic Cells and Sirtuins in Multiple Sclerosis. Int J Mol Sci 2022; 23:ijms23084352. [PMID: 35457169 PMCID: PMC9025744 DOI: 10.3390/ijms23084352] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 04/06/2022] [Accepted: 04/11/2022] [Indexed: 12/04/2022] Open
Abstract
Myeloid cells, including parenchymal microglia, perivascular and meningeal macrophages, and dendritic cells (DCs), are present in the central nervous system (CNS) and establish an intricate relationship with other cells, playing a crucial role both in health and in neurological diseases. In this context, DCs are critical to orchestrating the immune response linking the innate and adaptive immune systems. Under steady-state conditions, DCs patrol the CNS, sampling their local environment and acting as sentinels. During neuroinflammation, the resulting activation of DCs is a critical step that drives the inflammatory response or the resolution of inflammation with the participation of different cell types of the immune system (macrophages, mast cells, T and B lymphocytes), resident cells of the CNS and soluble factors. Although the importance of DCs is clearly recognized, their exact function in CNS disease is still debated. In this review, we will discuss modern concepts of DC biology in steady-state and during autoimmune neuroinflammation. Here, we will also address some key aspects involving DCs in CNS patrolling, highlighting the neuroprotective nature of DCs and emphasizing their therapeutic potential for the treatment of neurological conditions. Recently, inhibition of the NAD+-dependent deac(et)ylase sirtuin 6 was demonstrated to delay the onset of experimental autoimmune encephalomyelitis, by dampening DC trafficking towards inflamed LNs. Thus, a special focus will be dedicated to sirtuins’ role in DCs functions.
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Affiliation(s)
- Francesco Piacente
- Department of Experimental Medicine (DIMES), University of Genova, Viale Benedetto XV, 1, 16132 Genoa, Italy; (F.P.); (A.B.)
| | - Marta Bottero
- IRCCS Ospedale Policlinico San Martino, Largo Rosanna Benzi 10, 16132 Genova, Italy; (M.B.); (T.V.); (A.U.); (G.F.)
| | - Andrea Benzi
- Department of Experimental Medicine (DIMES), University of Genova, Viale Benedetto XV, 1, 16132 Genoa, Italy; (F.P.); (A.B.)
| | - Tiziana Vigo
- IRCCS Ospedale Policlinico San Martino, Largo Rosanna Benzi 10, 16132 Genova, Italy; (M.B.); (T.V.); (A.U.); (G.F.)
| | - Antonio Uccelli
- IRCCS Ospedale Policlinico San Martino, Largo Rosanna Benzi 10, 16132 Genova, Italy; (M.B.); (T.V.); (A.U.); (G.F.)
| | - Santina Bruzzone
- Department of Experimental Medicine (DIMES), University of Genova, Viale Benedetto XV, 1, 16132 Genoa, Italy; (F.P.); (A.B.)
- Correspondence: ; Tel.: +39-(0)10-353-8150
| | - Giovanni Ferrara
- IRCCS Ospedale Policlinico San Martino, Largo Rosanna Benzi 10, 16132 Genova, Italy; (M.B.); (T.V.); (A.U.); (G.F.)
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11
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Liu X, Liu BL, Yang Q, Zhou X, Tang SJ. Microglial ablation does not affect opioid-induced hyperalgesia in rodents. Pain 2022; 163:508-517. [PMID: 34433775 PMCID: PMC8678393 DOI: 10.1097/j.pain.0000000000002376] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 06/10/2021] [Indexed: 11/26/2022]
Abstract
ABSTRACT Opioids are the frontline analgesics in pain management. However, chronic use of opioid analgesics causes paradoxical pain that contributes to the decrease of their efficacy in pain control and the escalation of dose in long-term management of pain. The underling pathogenic mechanism is not well understood. Microglia have been commonly believed to play a critical role in the expression of opioid-induced hyperalgesia in animal models. We performed microglial ablation experiments using either genetic (CD11b-diphtheria toxin receptor transgenic mouse) or pharmacological (colony-stimulating factor-1 receptor inhibitor PLX5622) approaches. Surprisingly, ablating microglia using these specific and effective approaches did not cause detectable impairment in the expression of hyperalgesia induced by morphine. We confirmed this conclusion with a behavioral test of mechanical and thermal hyperalgesia, in male and female mice, and with different species (mouse and rat). These findings raise caution about the widely assumed contribution of microglia to the development of opioid-induced hyperalgesia.
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Affiliation(s)
- Xin Liu
- Department of Neuroscience and Cell Biology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Bo-Long Liu
- Department of Neuroscience and Cell Biology, University of Texas Medical Branch, Galveston, TX 77555, USA
- Department of Urology, The Third Affiliated Hospital of the Sun Yat-Sen University, Guangzhou, China
| | - Qing Yang
- Department of Neuroscience and Cell Biology, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Xiangfu Zhou
- Department of Urology, The Third Affiliated Hospital of the Sun Yat-Sen University, Guangzhou, China
| | - Shao-Jun Tang
- Department of Neuroscience and Cell Biology, University of Texas Medical Branch, Galveston, TX 77555, USA
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12
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Role of Cholinergic Anti-Inflammatory Pathway in Protecting Sepsis-Induced Acute Lung Injury through Regulation of the Conventional Dendritic Cells. Mediators Inflamm 2022; 2022:1474891. [PMID: 35125962 PMCID: PMC8813293 DOI: 10.1155/2022/1474891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 01/03/2022] [Accepted: 01/06/2022] [Indexed: 11/17/2022] Open
Abstract
Background The cholinergic anti-inflammatory pathway connects the immune response system and the nervous system via the vagus nerve. The key regulatory receptor is the α7-subtype of the nicotinic acetylcholine receptor (α7nAChR). Cholinergic anti-inflammatory pathway has been proved to be effective in suppressing the inflammation responses in acute lung injury (ALI). Dendritic cells (DCs), the important antigen-presenting cells, also express the α7nAChR. Past studies have indicated that reducing the quantity of mature conventional DCs and inhibiting the maturation of pulmonary DCs may prove effective for the treatment of ALI. However, the effects of cholinergic anti-inflammatory pathway on maturation, function, and quantity of DCs and conventional DCs in ALI remain unclear. Objective It was hypothesized that cholinergic anti-inflammatory pathway may inhibit the inflammatory response of ALI by regulating maturation, phenotype, and quantity of DCs and conventional DCs. Methods GTS-21 (GTS-21 dihydrochloride), an α7nAchR agonist, was prophylactically administered in sepsis-induced ALI mouse model and LPS-primed bone marrow-derived dendritic cells. The effects of GTS-21 were observed with respect to maturation, phenotype, and quantity of DCs, conventional DCs, and conventional DCs2 (type 2 conventional DCs) and the release of DC-related proinflammatory cytokines in vivo and in vitro. Results The results of the present study revealed that GTS-21 treatment decreased the maturation of DCs and the production of DC-related proinflammatory cytokines in vitro and in sepsis-induced ALI mouse model; it reduced the quantity of CD11c+MHCII+ conventional DCs and CD11c+CD11b+ conventional DCs2 in vivo experiment. Conclusions Cholinergic anti-inflammatory pathway contributes to the reduction in the inflammatory response in ALI by regulating maturation, phenotype, and quantity of DCs, conventional DCs, and conventional DCs2.
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13
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The Role of Exposomes in the Pathophysiology of Autoimmune Diseases I: Toxic Chemicals and Food. PATHOPHYSIOLOGY 2021; 28:513-543. [PMID: 35366249 PMCID: PMC8830458 DOI: 10.3390/pathophysiology28040034] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 12/11/2021] [Accepted: 12/15/2021] [Indexed: 12/12/2022] Open
Abstract
Autoimmune diseases affect 5–9% of the world’s population. It is now known that genetics play a relatively small part in the pathophysiology of autoimmune disorders in general, and that environmental factors have a greater role. In this review, we examine the role of the exposome, an individual’s lifetime exposure to external and internal factors, in the pathophysiology of autoimmune diseases. The most common of these environmental factors are toxic chemicals, food/diet, and infections. Toxic chemicals are in our food, drink, common products, the air, and even the land we walk on. Toxic chemicals can directly damage self-tissue and cause the release of autoantigens, or can bind to human tissue antigens and form neoantigens, which can provoke autoimmune response leading to autoimmunity. Other types of autoimmune responses can also be induced by toxic chemicals through various effects at the cellular and biochemical levels. The food we eat every day commonly has colorants, preservatives, or packaging-related chemical contamination. The food itself may be antigenic for susceptible individuals. The most common mechanism for food-related autoimmunity is molecular mimicry, in which the food’s molecular structure bears a similarity with the structure of one or more self-tissues. The solution is to detect the trigger, remove it from the environment or diet, then repair the damage to the individual’s body and health.
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14
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Retinoic Acid-Containing Liposomes for the Induction of Antigen-Specific Regulatory T Cells as a Treatment for Autoimmune Diseases. Pharmaceutics 2021; 13:pharmaceutics13111949. [PMID: 34834364 PMCID: PMC8620283 DOI: 10.3390/pharmaceutics13111949] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 11/09/2021] [Accepted: 11/12/2021] [Indexed: 11/17/2022] Open
Abstract
The current treatment of autoimmune and chronic inflammatory diseases entails systemic immune suppression, which is associated with increased susceptibility to infections. To restore immune tolerance and reduce systemic side effects, a targeted approach using tolerogenic dendritic cells (tolDCs) is being explored. tolDCs are characterized by the expression of CD11c, the major histocompatibility complex (MHC)II and low levels of co-stimulatory molecules CD40 and CD86. In this study, tolDCs were generated using a human-proteoglycan-derived peptide (hPG) and all-trans retinoic acid (RA). RA-tolDCs not only display a tolerogenic phenotype but also can induce an antigen-specific regulatory T cell (Treg) response in vitro. However, further analysis showed that RA-tolDCs make up a heterogeneous population of DCs, with only a small proportion being antigen-associated tolDCs. To increase the homogeneity of this population, 1,2-distearoyl-sn-glycero-3-phosphoglycerol (DSPG)-containing liposomes were used to encapsulate the relevant antigen together with RA. These liposomes greatly enhanced the proportion of antigen-associated tolDCs in culture. In addition, in mice, we showed that the liposomal co-delivery of antigen and RA can be a more targeted approach to induce antigen-specific tolerance compared to the injection of RA-tolDCs, and that these liposomes can stimulate the generation of antigen-specific Tregs. This work highlights the importance of the co-delivery of an antigen and immunomodulator to minimize off-target effects and systemic side effects and provides new insights in the use of RA for antigen-specific immunotherapy for autoimmune and chronic inflammatory diseases.
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15
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Dey AK, Nougarède A, Clément F, Fournier C, Jouvin-Marche E, Escudé M, Jary D, Navarro FP, Marche PN. Tuning the Immunostimulation Properties of Cationic Lipid Nanocarriers for Nucleic Acid Delivery. Front Immunol 2021; 12:722411. [PMID: 34497612 PMCID: PMC8419413 DOI: 10.3389/fimmu.2021.722411] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 08/04/2021] [Indexed: 11/25/2022] Open
Abstract
Nonviral systems, such as lipid nanoparticles, have emerged as reliable methods to enable nucleic acid intracellular delivery. The use of cationic lipids in various formulations of lipid nanoparticles enables the formation of complexes with nucleic acid cargo and facilitates their uptake by target cells. However, due to their small size and highly charged nature, these nanocarrier systems can interact in vivo with antigen-presenting cells (APCs), such as dendritic cells (DCs) and macrophages. As this might prove to be a safety concern for developing therapies based on lipid nanocarriers, we sought to understand how they could affect the physiology of APCs. In the present study, we investigate the cellular and metabolic response of primary macrophages or DCs exposed to the neutral or cationic variant of the same lipid nanoparticle formulation. We demonstrate that macrophages are the cells affected most significantly and that the cationic nanocarrier has a substantial impact on their physiology, depending on the positive surface charge. Our study provides a first model explaining the impact of charged lipid materials on immune cells and demonstrates that the primary adverse effects observed can be prevented by fine-tuning the load of nucleic acid cargo. Finally, we bring rationale to calibrate the nucleic acid load of cationic lipid nanocarriers depending on whether immunostimulation is desirable with the intended therapeutic application, for instance, gene delivery or messenger RNA vaccines.
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Affiliation(s)
- Arindam K. Dey
- Univ. Grenoble Alpes, St Martin d’Hères, France
- Institute for Advanced Biosciences, Research Center INSERM U1209, CNRS UMR5309, La Tronche, France
| | - Adrien Nougarède
- Univ. Grenoble Alpes, St Martin d’Hères, France
- CEA, LETI, Division for Biology and Healthcare Technologies, Microfluidic Systems and Bioengineering Lab, Grenoble, France
| | - Flora Clément
- Univ. Grenoble Alpes, St Martin d’Hères, France
- Institute for Advanced Biosciences, Research Center INSERM U1209, CNRS UMR5309, La Tronche, France
- Univ. Grenoble Alpes, CEA, INSERM, IRIG, Biomics, Grenoble, France
| | - Carole Fournier
- Univ. Grenoble Alpes, St Martin d’Hères, France
- Institute for Advanced Biosciences, Research Center INSERM U1209, CNRS UMR5309, La Tronche, France
| | - Evelyne Jouvin-Marche
- Univ. Grenoble Alpes, St Martin d’Hères, France
- Institute for Advanced Biosciences, Research Center INSERM U1209, CNRS UMR5309, La Tronche, France
| | - Marie Escudé
- Univ. Grenoble Alpes, St Martin d’Hères, France
- CEA, LETI, Division for Biology and Healthcare Technologies, Microfluidic Systems and Bioengineering Lab, Grenoble, France
| | - Dorothée Jary
- Univ. Grenoble Alpes, St Martin d’Hères, France
- CEA, LETI, Division for Biology and Healthcare Technologies, Microfluidic Systems and Bioengineering Lab, Grenoble, France
| | - Fabrice P. Navarro
- Univ. Grenoble Alpes, St Martin d’Hères, France
- CEA, LETI, Division for Biology and Healthcare Technologies, Microfluidic Systems and Bioengineering Lab, Grenoble, France
| | - Patrice N. Marche
- Univ. Grenoble Alpes, St Martin d’Hères, France
- Institute for Advanced Biosciences, Research Center INSERM U1209, CNRS UMR5309, La Tronche, France
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16
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Manoharan I, Swafford D, Shanmugam A, Patel N, Prasad PD, Thangaraju M, Manicassamy S. Activation of Transcription Factor 4 in Dendritic Cells Controls Th1/Th17 Responses and Autoimmune Neuroinflammation. THE JOURNAL OF IMMUNOLOGY 2021; 207:1428-1436. [PMID: 34348977 DOI: 10.4049/jimmunol.2100010] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 06/28/2021] [Indexed: 12/25/2022]
Abstract
Dendritic cells (DCs) are professional APCs that play a crucial role in initiating robust immune responses against invading pathogens while inducing regulatory responses to the body's tissues and commensal microorganisms. A breakdown of DC-mediated immunological tolerance leads to chronic inflammation and autoimmune disorders. However, cell-intrinsic molecular regulators that are critical for programming DCs to a regulatory state rather than to an inflammatory state are not known. In this study, we show that the activation of the TCF4 transcription factor in DCs is critical for controlling the magnitude of inflammatory responses and limiting neuroinflammation. DC-specific deletion of TCF4 in mice increased Th1/Th17 responses and exacerbated experimental autoimmune encephalomyelitis pathology. Mechanistically, loss of TCF4 in DCs led to heightened activation of p38 MAPK and increased levels of proinflammatory cytokines IL-6, IL-23, IL-1β, TNF-α, and IL-12p40. Consistent with these findings, pharmacological blocking of p38 MAPK activation delayed experimental autoimmune encephalomyelitis onset and diminished CNS pathology in TCF4ΔDC mice. Thus, manipulation of the TCF4 pathway in DCs could provide novel opportunities for regulating chronic inflammation and represents a potential therapeutic approach to control autoimmune neuroinflammation.
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Affiliation(s)
- Indumathi Manoharan
- Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA.,Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, GA
| | - Daniel Swafford
- Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, GA
| | | | - Nikhil Patel
- Department of Pathology, Medical College of Georgia, Augusta University, Augusta, GA; and
| | - Puttur D Prasad
- Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA
| | - Muthusamy Thangaraju
- Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA
| | - Santhakumar Manicassamy
- Department of Biochemistry and Molecular Biology, Medical College of Georgia, Augusta University, Augusta, GA; .,Georgia Cancer Center, Medical College of Georgia, Augusta University, Augusta, GA.,Department of Medicine, Medical College of Georgia, Augusta University, Augusta, GA
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17
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Shepard ER, Wegner A, Hill EV, Burton BR, Aerts S, Schurgers E, Hoedemaekers B, Ng STH, Streeter HB, Jansson L, Wraith DC. The Mechanism of Action of Antigen Processing Independent T Cell Epitopes Designed for Immunotherapy of Autoimmune Diseases. Front Immunol 2021; 12:654201. [PMID: 33936079 PMCID: PMC8079784 DOI: 10.3389/fimmu.2021.654201] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 03/23/2021] [Indexed: 12/20/2022] Open
Abstract
Immunotherapy with antigen-processing independent T cell epitopes (apitopes) targeting autoreactive CD4+ T cells has translated to the clinic and been shown to modulate progression of both Graves’ disease and multiple sclerosis. The model apitope (Ac1-9[4Y]) renders antigen-specific T cells anergic while repeated administration induces both Tr1 and Foxp3+ regulatory cells. Here we address why CD4+ T cell epitopes should be designed as apitopes to induce tolerance and define the antigen presenting cells that they target in vivo. Furthermore, we reveal the impact of treatment with apitopes on CD4+ T cell signaling, the generation of IL-10-secreting regulatory cells and the systemic migration of these cells. Taken together these findings reveal how apitopes induce tolerance and thereby mediate antigen-specific immunotherapy of autoimmune diseases.
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Affiliation(s)
- Ella R Shepard
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, United Kingdom
| | - Anja Wegner
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, United Kingdom
| | - Elaine V Hill
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, United Kingdom
| | - Bronwen R Burton
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, United Kingdom
| | - Sarah Aerts
- Apitope International NV, Diepenbeek, Belgium
| | | | | | - Sky T H Ng
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, United Kingdom
| | - Heather B Streeter
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, United Kingdom
| | | | - David C Wraith
- Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, United Kingdom
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18
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Almishri W, Davis RP, Shaheen AA, Altonsy MO, Jenne CN, Swain MG. The Antidepressant Mirtazapine Rapidly Shifts Hepatic B Cell Populations and Functional Cytokine Signatures in the Mouse. Front Immunol 2021; 12:622537. [PMID: 33841403 PMCID: PMC8027111 DOI: 10.3389/fimmu.2021.622537] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 03/08/2021] [Indexed: 01/17/2023] Open
Abstract
Introduction B cells are important regulators of both adaptive and innate immunity. The normal liver contains significant numbers of B cells, and their numbers increase dramatically in immune-mediated liver diseases. Our previous observations suggest a hepatoprotective effect of the antidepressant mirtazapine in human and experimental immune-mediated liver disease. Therefore, we performed a series of experiments to determine the impact of mirtazapine treatment on hepatic B cell homeostasis, as reflected by B cell number, trafficking and phenotype using flow cytometry (FCM) and intravital microscopy (IVM) analysis. Mirtazapine treatment rapidly induced a significant reduction in total hepatic B cell numbers, paralleled by a compositional shift in the predominant hepatic B cell subtype from B2 to B1. This shift in hepatic B cells induced by mirtazapine treatment was associated with a striking increase in total hepatic levels of the chemokine CXCL10, and increased production of CXCL10 by hepatic macrophages and dendritic cells. Furthermore, mirtazapine treatment led to an upregulation of CXCR3, the cognate chemokine receptor for CXCL10, on hepatic B cells that remained in the liver post-mirtazapine. A significant role for CXCR3 in the hepatic retention of B cells post-mirtazapine was confirmed using CXCR3 receptor blockade. In addition, B cells remaining in the liver post-mirtazapine produced lower amounts of the proinflammatory Th1-like cytokines IFNγ, TNFα, and IL-6, and increased amounts of the Th2-like cytokine IL-4, after stimulation in vitro. Conclusion Mirtazapine treatment rapidly alters hepatic B cell populations, enhancing hepatic retention of CXCR3-expressing innate-like B cells that generate a more anti-inflammatory cytokine profile. Mirtazapine-induced hepatic B cell shifts could potentially represent a novel therapeutic approach to immune-mediated liver diseases characterized by B cell driven pathology.
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Affiliation(s)
- Wagdi Almishri
- Department of Microbiology, Immunology, and Infectious Diseases, University of Calgary, Calgary, AB, Canada.,Snyder Institute for Chronic Diseases, University of Calgary, Calgary, AB, Canada.,Department of Pathology and Clinical Pathology, Faculty of Veterinary Medicine, University of Tripoli, Tripoli, Libya
| | - Rachelle P Davis
- Department of Microbiology, Immunology, and Infectious Diseases, University of Calgary, Calgary, AB, Canada.,Snyder Institute for Chronic Diseases, University of Calgary, Calgary, AB, Canada
| | - Abdel-Aziz Shaheen
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Calgary, Calgary, AB, Canada
| | - Mohammed O Altonsy
- Department of Microbiology, Immunology, and Infectious Diseases, University of Calgary, Calgary, AB, Canada.,Snyder Institute for Chronic Diseases, University of Calgary, Calgary, AB, Canada.,Department of Zoology, Faculty of Science, Sohag University, Sohag, Egypt
| | - Craig N Jenne
- Department of Microbiology, Immunology, and Infectious Diseases, University of Calgary, Calgary, AB, Canada.,Snyder Institute for Chronic Diseases, University of Calgary, Calgary, AB, Canada
| | - Mark G Swain
- Department of Microbiology, Immunology, and Infectious Diseases, University of Calgary, Calgary, AB, Canada.,Snyder Institute for Chronic Diseases, University of Calgary, Calgary, AB, Canada.,Division of Gastroenterology and Hepatology, Department of Medicine, University of Calgary, Calgary, AB, Canada
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19
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Mishra A, Vijayasarathy C, Cukras CA, Wiley HE, Sen HN, Zeng Y, Wei LL, Sieving PA. Immune function in X-linked retinoschisis subjects in an AAV8-RS1 phase I/IIa gene therapy trial. Mol Ther 2021; 29:2030-2040. [PMID: 33601057 DOI: 10.1016/j.ymthe.2021.02.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 01/27/2021] [Accepted: 02/10/2021] [Indexed: 12/12/2022] Open
Abstract
This study explored systemic immune changes in 11 subjects with X-linked retinoschisis (XLRS) in a phase I/IIa adeno-associated virus 8 (AAV8)-RS1 gene therapy trial (ClinicalTrials.gov: NCT02317887). Immune cell proportions and serum analytes were compared to 12 healthy male controls. At pre-dosing baseline the mean CD4/CD8 ratio of XLRS subjects was elevated. CD11c+ myeloid dendritic cells (DCs) and the serum epidermal growth factor (EGF) level were decreased, while CD123+ plasmacytoid DCs and serum interferon (IFN)-γ and tumor necrosis factor (TNF)-α were increased, indicating that the XLRS baseline immune status differs from that of controls. XLRS samples 14 days after AAV8-RS1 administration were compared with the XLRS baseline. Frequency of CD11b+CD11c+ DCc was decreased in 8 of 11 XLRS subjects across all vector doses (1e9-3e11 vector genomes [vg]/eye). CD8+human leukocyte antigen-DR isotype (HLA-DR)+ cytotoxic T cells and CD68+CD80+ macrophages were upregulated in 10 of 11 XLRS subjects, along with increased serum granzyme B in 8 of 11 XLRS subjects and elevated IFN-γ in 9 of 11 XLRS subjects. The six XLRS subjects with ocular inflammation after vector application gave a modestly positive correlation of inflammation score to their respective baseline CD4/CD8 ratios. This exploratory study indicates that XLRS subjects may exhibit a proinflammatory, baseline immune phenotype, and that intravitreal dosing with AAV8-RS1 leads to systemic immune activation with an increase of activated lymphocytes, macrophages, and proinflammatory cytokines.
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Affiliation(s)
- Alaknanda Mishra
- National Eye Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | | | - Catherine A Cukras
- National Eye Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Henry E Wiley
- National Eye Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - H Nida Sen
- National Eye Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Yong Zeng
- National Eye Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Lisa L Wei
- National Eye Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Paul A Sieving
- National Eye Institute, National Institutes of Health, Bethesda, MD 20892, USA; Department of Ophthalmology, University of California Davis, Davis, CA 95817, USA.
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20
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Casella G, Rasouli J, Thome R, Descamps HC, Vattikonda A, Ishikawa L, Boehm A, Hwang D, Zhang W, Xiao D, Park J, Zhang GX, Alvarez JI, Rostami A, Ciric B. Interferon-γ/Interleukin-27 Axis Induces Programmed Death Ligand 1 Expression in Monocyte-Derived Dendritic Cells and Restores Immune Tolerance in Central Nervous System Autoimmunity. Front Immunol 2020; 11:576752. [PMID: 33193372 PMCID: PMC7649367 DOI: 10.3389/fimmu.2020.576752] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 09/02/2020] [Indexed: 12/03/2022] Open
Abstract
Antigen (Ag)-specific tolerance induction by intravenous (i. v.) injection of high-dose auto-Ags has been explored for therapy of autoimmune diseases, including multiple sclerosis (MS). It is thought that the advantage of such Ag-specific therapy over non-specific immunomodulatory treatments would be selective suppression of a pathogenic immune response without impairing systemic immunity, thus avoiding adverse effects of immunosuppression. Auto-Ag i.v. tolerance induction has been extensively studied in experimental autoimmune encephalomyelitis (EAE), an animal model of MS, and limited clinical trials demonstrated that it is safe and beneficial to a subset of MS patients. Nonetheless, the mechanisms of i.v. tolerance induction are incompletely understood, hampering the development of better approaches and their clinical application. Here, we describe a pathway whereby auto-Ag i.v. injected into mice with ongoing clinical EAE induces interferon-gamma (IFN-γ) secretion by auto-Ag-specific CD4+ T cells, triggering interleukin (IL)-27 production by conventional dendritic cells type 1 (cDC1). IL-27 then, via signal transducer and activator of transcription 3 activation, induces programmed death ligand 1 (PD-L1) expression by monocyte-derived dendritic cells (moDCs) in the central nervous system of mice with EAE. PD-L1 interaction with programmed cell death protein 1 on pathogenic CD4+ T cells leads to their apoptosis/anergy, resulting in disease amelioration. These findings identify a key role of the IFN-γ/IL-27/PD-L1 axis, involving T cells/cDC1/moDCs in the induction of i.v. tolerance.
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Affiliation(s)
- Giacomo Casella
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, United States
| | - Javad Rasouli
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, United States
| | - Rodolfo Thome
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, United States
| | - Hélène C Descamps
- Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Asrita Vattikonda
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, United States
| | - Larissa Ishikawa
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, United States
| | - Alexandra Boehm
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, United States
| | - Daniel Hwang
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, United States
| | - Weifeng Zhang
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, United States
| | - Dan Xiao
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, United States
| | - Jeongho Park
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, United States.,College of Veterinary Medicine & Institute of Veterinary Science, Kangwon National University, Chuncheon, South Korea
| | - Guang-Xian Zhang
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, United States
| | - Jorge I Alvarez
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Abdolmohamad Rostami
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, United States
| | - Bogoljub Ciric
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, United States
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21
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Humphries J, Pizzi D, Sonderegger SE, Fletcher NL, Houston ZH, Bell CA, Kempe K, Thurecht KJ. Hyperbranched Poly(2-oxazoline)s and Poly(ethylene glycol): A Structure–Activity Comparison of Biodistribution. Biomacromolecules 2020; 21:3318-3331. [DOI: 10.1021/acs.biomac.0c00765] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- James Humphries
- Centre for Advanced Imaging, The University of Queensland, Brisbane, Queensland 4072, Australia
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, Queensland 4072, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - David Pizzi
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology; Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
| | - Stefan E. Sonderegger
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Nicholas L. Fletcher
- Centre for Advanced Imaging, The University of Queensland, Brisbane, Queensland 4072, Australia
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, Queensland 4072, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Zachary H. Houston
- Centre for Advanced Imaging, The University of Queensland, Brisbane, Queensland 4072, Australia
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, Queensland 4072, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Craig A. Bell
- Centre for Advanced Imaging, The University of Queensland, Brisbane, Queensland 4072, Australia
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, Queensland 4072, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Kristian Kempe
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology; Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria 3052, Australia
- Materials Science and Engineering, Monash University, Clayton, Victoria 3800, Australia
| | - Kristofer J. Thurecht
- Centre for Advanced Imaging, The University of Queensland, Brisbane, Queensland 4072, Australia
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, Queensland 4072, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, The University of Queensland, Brisbane, Queensland 4072, Australia
- ARC Training Centre for Innovation in Biomedical Imaging Technology, The University of Queensland, Brisbane, Queensland 4072, Australia
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22
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Recent Advances in Antigen-Specific Immunotherapies for the Treatment of Multiple Sclerosis. Brain Sci 2020; 10:brainsci10060333. [PMID: 32486045 PMCID: PMC7348736 DOI: 10.3390/brainsci10060333] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 05/22/2020] [Accepted: 05/26/2020] [Indexed: 12/11/2022] Open
Abstract
Multiple sclerosis (MS) is an autoimmune disease of the central nervous system and is considered to be the leading non-traumatic cause of neurological disability in young adults. Current treatments for MS comprise long-term immunosuppressant drugs and disease-modifying therapies (DMTs) designed to alter its progress with the enhanced risk of severe side effects. The Holy Grail for the treatment of MS is to specifically suppress the disease while at the same time allow the immune system to be functionally active against infectious diseases and malignancy. This could be achieved via the development of immunotherapies designed to specifically suppress immune responses to self-antigens (e.g., myelin antigens). The present study attempts to highlight the various antigen-specific immunotherapies developed so far for the treatment of multiple sclerosis (e.g., vaccination with myelin-derived peptides/proteins, plasmid DNA encoding myelin epitopes, tolerogenic dendritic cells pulsed with encephalitogenic epitopes of myelin proteins, attenuated autologous T cells specific for myelin antigens, T cell receptor peptides, carriers loaded/conjugated with myelin immunodominant peptides, etc), focusing on the outcome of their recent preclinical and clinical evaluation, and to shed light on the mechanisms involved in the immunopathogenesis and treatment of multiple sclerosis.
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23
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Xu H, Feldman GM, Max EE. High-Dose IV Administration of Rasburicase Suppresses Anti-rasburicase Antibodies, Depletes Rasburicase-Specific Lymphocytes, and Upregulates Treg Cells. AAPS JOURNAL 2020; 22:80. [PMID: 32462555 DOI: 10.1208/s12248-020-00461-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Accepted: 04/28/2020] [Indexed: 02/07/2023]
Abstract
Therapeutic proteins can be potent agents for treating serious diseases, but in many patients these proteins provoke antibody responses that blunt therapeutic efficacy. Intravenous administration of high doses of some proteins induces immune tolerance, but the mechanisms underlying this effect are poorly understood. As a model to study tolerance induction in mice, we used rasburicase, a commercial recombinant uricase used for the treatment of hyperuricemia. Intraperitoneal (i.p.) injection of rasburicase without or with alum adjuvants induced a clear anti-rasburicase antibody response, but intravenous (i.v.) injection did not. The lack of response to i.v. rasburicase was apparently due to active immune suppression since i.v.-treated mice showed blunted antibody and reduced T cell responses to subsequent i.p. injections of rasburicase. This blunted response was associated with a decrease in rasburicase-specific B cell and T cell responses and an increase in proportion of CD4+ FoxP3+ regulatory T cells (Treg) in the spleen. We examined the number of lymphocytes in peripheral blood after rasburicase i.v. injection. Rasburicase caused a transient reduction in B and T cells, but a robust and sustained depletion of rasburicase-specific B cells. Further experiments showed that rasburicase i.v. injection decreased the number of lymphocytes and was associated with apoptosis of both B cells and activated T cells and that the enhanced percentage of Treg cells was likely mediated by a macrophage-dependent pathway. Thus, our data suggest that apoptosis and depletion of antigen-specific B lymphocytes and upregulation of Treg cells may play important roles in the immune suppression induced by intravenous administration of a therapeutic protein.
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Affiliation(s)
- Hui Xu
- Laboratory of Immunobiology, Office of Biotechnology Products, Center for Drug Evaluation and Research, Food and Drug Administration, Building 72, Room 2324, 10903 New Hampshire Ave, Silver Spring, Maryland, 20993, USA
| | - Gerald M Feldman
- Laboratory of Immunobiology, Office of Biotechnology Products, Center for Drug Evaluation and Research, Food and Drug Administration, Building 72, Room 2324, 10903 New Hampshire Ave, Silver Spring, Maryland, 20993, USA.
| | - Edward E Max
- Laboratory of Immunobiology, Office of Biotechnology Products, Center for Drug Evaluation and Research, Food and Drug Administration, Building 72, Room 2324, 10903 New Hampshire Ave, Silver Spring, Maryland, 20993, USA
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24
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Yoshimura S, Thome R, Konno S, Mari ER, Rasouli J, Hwang D, Boehm A, Li Y, Zhang GX, Ciric B, Rostami A. IL-9 Controls Central Nervous System Autoimmunity by Suppressing GM-CSF Production. THE JOURNAL OF IMMUNOLOGY 2019; 204:531-539. [PMID: 31852750 DOI: 10.4049/jimmunol.1801113] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 11/18/2019] [Indexed: 01/26/2023]
Abstract
Multiple sclerosis and experimental autoimmune encephalomyelitis (EAE) are inflammatory diseases of the CNS in which Th17 cells play a major role in the disease pathogenesis. Th17 cells that secrete GM-CSF are pathogenic and drive inflammation of the CNS. IL-9 is a cytokine with pleiotropic functions, and it has been suggested that it controls the pathogenic inflammation mediated by Th17 cells, and IL-9R-/- mice develop more severe EAE compared with wild-type counterparts. However, the underlying mechanism by which IL-9 suppresses EAE has not been clearly defined. In this study, we investigated how IL-9 modulates EAE development. By using mice knockout for IL-9R, we show that more severe EAE in IL-9R-/- mice correlates with increased numbers of GM-CSF+ CD4+ T cells and inflammatory dendritic cells (DCs) in the CNS. Furthermore, DCs from IL-9R-/- mice induced more GM-CSF production by T cells and exacerbated EAE upon adoptive transfer than did wild-type DCs. Our results suggest that IL-9 reduces autoimmune neuroinflammation by suppressing GM-CSF production by CD4+ T cells through the modulation of DCs.
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Affiliation(s)
- Satoshi Yoshimura
- Department of Neurology, Jefferson Hospital for Neuroscience, Thomas Jefferson University, Philadelphia, PA 19107
| | - Rodolfo Thome
- Department of Neurology, Jefferson Hospital for Neuroscience, Thomas Jefferson University, Philadelphia, PA 19107
| | - Shingo Konno
- Department of Neurology, Jefferson Hospital for Neuroscience, Thomas Jefferson University, Philadelphia, PA 19107
| | - Elisabeth R Mari
- Department of Neurology, Jefferson Hospital for Neuroscience, Thomas Jefferson University, Philadelphia, PA 19107
| | - Javad Rasouli
- Department of Neurology, Jefferson Hospital for Neuroscience, Thomas Jefferson University, Philadelphia, PA 19107
| | - Daniel Hwang
- Department of Neurology, Jefferson Hospital for Neuroscience, Thomas Jefferson University, Philadelphia, PA 19107
| | - Alexandra Boehm
- Department of Neurology, Jefferson Hospital for Neuroscience, Thomas Jefferson University, Philadelphia, PA 19107
| | - Yanhua Li
- Department of Neurology, Jefferson Hospital for Neuroscience, Thomas Jefferson University, Philadelphia, PA 19107
| | - Guang-Xian Zhang
- Department of Neurology, Jefferson Hospital for Neuroscience, Thomas Jefferson University, Philadelphia, PA 19107
| | - Bogoljub Ciric
- Department of Neurology, Jefferson Hospital for Neuroscience, Thomas Jefferson University, Philadelphia, PA 19107
| | - Abdolmohamad Rostami
- Department of Neurology, Jefferson Hospital for Neuroscience, Thomas Jefferson University, Philadelphia, PA 19107
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25
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Hoober JK, Eggink LL, Cote R. Stories From the Dendritic Cell Guardhouse. Front Immunol 2019; 10:2880. [PMID: 31921144 PMCID: PMC6919295 DOI: 10.3389/fimmu.2019.02880] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 11/25/2019] [Indexed: 12/19/2022] Open
Abstract
Phagocytic cells [dendritic cells (DCs), macrophages, monocytes, neutrophils, and mast cells] utilize C-type (Ca2+-dependent) lectin-like (CLEC) receptors to identify and internalize pathogens or danger signals. As monitors of environmental imbalances, CLEC receptors are particularly important in the function of DCs. Activation of the immune system requires, in sequence, presentation of antigen to the T cell receptor (TCR) by DCs, interaction of co-stimulatory factors such as CD40/80/86 on DCs with CD40L and CD28 on T cells, and production of IL-12 and/or IFN-α/β to amplify T cell differentiation and expansion. Without this sequence of events within an inflammatory environment, or in a different order, antigen-specific T cells become unresponsive, are deleted or become regulatory T cells. Thus, the mode by which CLEC receptors on DCs are engaged can either elicit activation of T cells to achieve an immune response or induce tolerance. This minireview illustrates these aspects with Dectin-1, DEC205, the mannose receptor and CLEC10A as examples.
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Affiliation(s)
| | | | - Robert Cote
- Susavion Biosciences, Inc., Tempe, AZ, United States
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26
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Luo Z, Soläng C, Mejia‐Cordova M, Thorvaldson L, Blixt M, Sandler S, Singh K. Kinetics of immune cell responses in the multiple low-dose streptozotocin mouse model of type 1 diabetes. FASEB Bioadv 2019; 1:538-549. [PMID: 32123849 PMCID: PMC6996374 DOI: 10.1096/fba.2019-00031] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 04/12/2019] [Accepted: 07/19/2019] [Indexed: 12/30/2022] Open
Abstract
In type 1 diabetes (T1D), the insulin-producing β cells are destructed by immune mechanisms. It has been hypothesized that the very first immune response in T1D onset comes from innate immune cells, which further activates the adaptive immune cells to attack the islets. Despite intensive research on characterization of islet-infiltrating immune cells, the kinetics of different immune cells in multiple low-dose streptozotocin (MLDSTZ)-induced T1D mouse model is still much unclear. Therefore, we investigated the proportions of innate immune cells such as neutrophils, dendritic cells (DCs), plasmacytoid dendritic cells (pDCs), macrophages, natural killer (NK) cells, and adaptive immune cells (T and B lymphocytes) in thymi, pancreatic-draining lymph nodes, and spleens of MLDSTZ mice on days 3, 7, 10, and 21 after the first injection of STZ by flow cytometry. The proportions of DCs and B cells were increased from day 3, while the proportions of B-1a lymphocytes and interferon-γ+ cells among NK cells were increased, but NK cells were decreased on day 10 in MLDSTZ-treated mice, illustrating that the initial immune response is induced by DCs and B cells. Later, the proportions of T helper 1 and cytotoxic T cells were increased from day 7, suggesting that the innate immune cells precede adaptive immune cell response in MLDSTZ mice. Altogether, our data demonstrate a possible sequence of events regarding the involvement of DCs, pDCs, NK cells, B-1a lymphocytes, B, and T cells at the early stage of T1D development.
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Affiliation(s)
- Zhengkang Luo
- Department of Medical Cell BiologyUppsala UniversityUppsalaSweden
| | - Charlotte Soläng
- Department of Medical Cell BiologyUppsala UniversityUppsalaSweden
| | | | - Lina Thorvaldson
- Department of Medical Cell BiologyUppsala UniversityUppsalaSweden
| | - Martin Blixt
- Department of Medical Cell BiologyUppsala UniversityUppsalaSweden
| | - Stellan Sandler
- Department of Medical Cell BiologyUppsala UniversityUppsalaSweden
| | - Kailash Singh
- Department of Medical Cell BiologyUppsala UniversityUppsalaSweden
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27
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Hassanpour Golakani M, Mohammad MG, Li H, Gamble J, Breit SN, Ruitenberg MJ, Brown DA. MIC-1/GDF15 Overexpression Is Associated with Increased Functional Recovery in Traumatic Spinal Cord Injury. J Neurotrauma 2019; 36:3410-3421. [PMID: 31232176 DOI: 10.1089/neu.2019.6421] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Spinal cord injury (SCI) has devastating consequences, with limited therapeutic options; therefore, improving its functional outcome is a major goal. The outcome of SCI is contributed to by neuroinflammation, which may be a target for improved recovery and quality of life after injury. Macrophage inhibitory cytokine-1/growth differentiation factor 15 (MIC-1/GDF15) has been identified as a potential novel therapy for central nervous system (CNS) injury because it is an immune regulatory cytokine with neurotrophic properties. Here we used MIC-1/GDF15 knockout (KO) and overexpressing/transgenic (Tg) and wild type (WT) animals to explore its putative therapeutic benefits in a mouse model of contusive SCI. MIC-1/GDF15 Tg mice had superior locomotor recovery and reduced secondary tissue loss at 28 days compared with their KO and WT counterparts. Overexpression of MIC-1/GDF15 coincided with increased expression of monocyte chemoattractant protein-1 (MCP-1)/C-C Motif Chemokine Ligand 2 (CCL2) at the lesion site (28 days post-SCI) and enhanced recruitment of inflammatory cells to the injured spinal cord. This inflammatory cellular infiltrate included an increased frequency of macrophages and dendritic cells (DCs) that mostly preceded recruitment of cluster of differentiation (CD)4+ and CD8+ T cells. Collectively, our findings suggest hat MIC-1/GDF15 is associated with beneficial changes in the clinical course of SCI that are characterized by altered post-injury inflammation and improved functional outcome. Further investigation of MIC-1/GDF15 as a novel therapeutic target for traumatic SCI appears warranted.
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Affiliation(s)
- Masoud Hassanpour Golakani
- St. Vincent's Centre for Applied Medical Research (AMR), St Vincent's Hospital and University of New South Wales (UNSW), Sydney, New South Wales, Australia.,The Neuroinflammation Research Group, Centre for Immunology and Allergy Research, Westmead Institute for Medical Research, University of Sydney, Sydney, New South Wales, Australia
| | - Mohammad G Mohammad
- Department of Medical Laboratory Sciences, College of Health Sciences and Sharjah Institute for Medical Research, University of Sharjah, Sharjah, United Arab Emirates. Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia
| | - Hui Li
- St. Vincent's Centre for Applied Medical Research (AMR), St Vincent's Hospital and University of New South Wales (UNSW), Sydney, New South Wales, Australia.,The Neuroinflammation Research Group, Centre for Immunology and Allergy Research, Westmead Institute for Medical Research, University of Sydney, Sydney, New South Wales, Australia
| | - Joanne Gamble
- The Neuroinflammation Research Group, Centre for Immunology and Allergy Research, Westmead Institute for Medical Research, University of Sydney, Sydney, New South Wales, Australia
| | - Samuel N Breit
- St. Vincent's Centre for Applied Medical Research (AMR), St Vincent's Hospital and University of New South Wales (UNSW), Sydney, New South Wales, Australia
| | - Marc J Ruitenberg
- School of Biomedical Sciences, Faculty of Medicine, University of Queensland, Brisbane, Queensland, Australia
| | - David A Brown
- St. Vincent's Centre for Applied Medical Research (AMR), St Vincent's Hospital and University of New South Wales (UNSW), Sydney, New South Wales, Australia.,The Neuroinflammation Research Group, Centre for Immunology and Allergy Research, Westmead Institute for Medical Research, University of Sydney, Sydney, New South Wales, Australia.,Department of Immunopathology, Institute for Clinical Pathology and Medical Research-New South Wales Health Pathology, Westmead Hospital, Sydney, New South Wales, Australia
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28
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Kaushansky N, Kaminitz A, Allouche-Arnon H, Ben-Nun A. Modulation of MS-like disease by a multi epitope protein is mediated by induction of CD11c +CD11b +Gr1 + myeloid-derived dendritic cells. J Neuroimmunol 2019; 333:476953. [PMID: 31108399 DOI: 10.1016/j.jneuroim.2019.04.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 04/24/2019] [Accepted: 04/24/2019] [Indexed: 12/16/2022]
Abstract
Specific neutralization of the pathogenic autoimmune cells is the ultimate goal in therapy of Multiple Sclerosis (MS). However, the pathogenic autoimmunity in MS, can be directed against several major target antigens, and therefore targeting pathogenic T-cells directed against a single target antigen is unlikely to be effective. To overcome this multiplicity and the potential complexity of pathogenic autoreactivities in MS, we have put forward the concept of concomitant multi-antigen/multi-epitope targeting as, a conceivably more effective approach to immunotherapy of MS. We constructed an (Experimental Autoimmune Encephalomeylitis (EAE)/MS-related synthetic human Target Autoantigen Gene (MS-shMultiTAG) designed to encode in tandem only EAE/MS related epitopes of all known encephalitogenic proteins. The MS-related protein product (designated Y-MSPc) was immunofunctional and upon tolerogenic administration, it effectively suppressed and reversed EAE induced by a single encephalitogenic protein. Furthermore, Y-MSPc also fully abrogated the development of "complex EAE" induced by a mixture of five encephalitogenic T-cell lines, each specific for a different encephalitogenic epitope of MBP, MOG, PLP, MOBP and OSP. Strikingly, Y-MSPc was consistently more effective than treatment with the single disease-specific peptide or with the peptide cocktail, both in suppressing the development of "classical" or "complex" EAE and in ameliorating ongoing disease. Overall, the modulation of EAE by Y-MSPc was associated with anergizing the pathogenic autoreactive T-cells, downregulation of Th1/Th17 cytokine secretion and upregulation of TGF-β secretion. Moreover, we show that both suppression and treatment of ongoing EAE by tolerogenic administration of Y-MSPc is associated also with a remarkable increase in a unique subset of dendritic-cells (DCs), CD11c+CD11b+Gr1+-myeloid derived DCs in both spleen and CNS of treated mice. These DCs, which are with strong immunoregulatory characteristics and are functional in down-modulation of MS-like-disease displayed increased production of IL-4, IL-10 and TGF-β and low IL-12. Functionally, these myeloid DCs suppress the in-vitro proliferation of myelin-specific T-cells and more importantly, the cells were functional in-vivo, as their adoptive transfer into EAE induced mice resulted in strong suppression of the disease, associated with a remarkable induction of CD4 + FoxP3+ regulatory cells. These results, which highlight the efficacy of "multi-epitope-targeting" agent in induction of functional regulatory CD11c+CD11b+Gr1+myeloid DCs, further indicate the potential role of these DCs in maintaining peripheral tolerance and their involvement in downregulation of MS-like-disease.
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Affiliation(s)
- N Kaushansky
- Department of Immunology, Weizmann Institute of Science, Rehovot, Israel.
| | - A Kaminitz
- Department of Immunology, Weizmann Institute of Science, Rehovot, Israel
| | - H Allouche-Arnon
- Department of Immunology, Weizmann Institute of Science, Rehovot, Israel
| | - A Ben-Nun
- Department of Immunology, Weizmann Institute of Science, Rehovot, Israel
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29
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Pavlovic S, Petrovic I, Jovicic N, Ljujic B, Miletic Kovacevic M, Arsenijevic N, Lukic ML. IL-33 Prevents MLD-STZ Induction of Diabetes and Attenuate Insulitis in Prediabetic NOD Mice. Front Immunol 2018; 9:2646. [PMID: 30498495 PMCID: PMC6249384 DOI: 10.3389/fimmu.2018.02646] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 10/26/2018] [Indexed: 12/13/2022] Open
Abstract
Type 1 diabetes is an autoimmune disease caused by the immune-mediated destruction of pancreatic β-cells. Prevention of type 1 diabetes requires early intervention in the autoimmune process against beta-cells of the pancreatic islets of Langerhans, which is believed to result from disordered immunoregulation. CD4+Foxp3+ regulatory T cells (Tregs) participate as one of the most important cell types in limiting the autoimmune process. The aim of this study was to investigate the effect of exogenous IL-33 in multiple low dose streptozotocin (MLD-STZ) induced diabetes and to delineate its role in the induction of protective Tregs in an autoimmune attack. C57BL/6 mice were treated i. p. with five doses of 40 mg/kg STZ and 0.4 μg rIL-33 four times, starting from day 0, 6, or 12 every second day from the day of disease induction. 16 weeks old NOD mice were treated with 6 injections of 0.4 μg/mouse IL-33 (every second day). Glycemia and glycosuria were measured and histological parameters in pancreatic islets were evaluated at the end of experiments. Cellular make up of the pancreatic lymph nodes and islets were evaluated by flow cytometry. IL-33 given simultaneously with the application of STZ completely prevented the development of hyperglycemia, glycosuria and profoundly attenuated mononuclear cell infiltration. IL-33 treatment was accompanied by higher number of IL-13 and IL-5 producing CD4+ T cells and increased presence of ST2+Foxp3+ regulatory T cells in pancreatic lymph nodes and islets. Elimination of Tregs abrogated protective effect of IL-33. We provide evidence that exogenous IL-33 completely prevents the development of T cell mediated inflammation in pancreatic islets and consecutive development of diabetes in C57BL/6 mice by facilitating the induction Treg cells. To extend this finding for possible relevance in spontaneous diabetes, we showed that IL-33 attenuate insulitis in prediabetic NOD mice.
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Affiliation(s)
- Sladjana Pavlovic
- Faculty of Medical Sciences, Center for Molecular Medicine and Stem Cell Research, University of Kragujevac, Kragujevac, Serbia
| | - Ivica Petrovic
- Faculty of Medical Sciences, Center for Molecular Medicine and Stem Cell Research, University of Kragujevac, Kragujevac, Serbia
- Department of Pathophysiology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Nemanja Jovicic
- Faculty of Medical Sciences, Center for Molecular Medicine and Stem Cell Research, University of Kragujevac, Kragujevac, Serbia
- Department of Histology and Embryology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Biljana Ljujic
- Faculty of Medical Sciences, Center for Molecular Medicine and Stem Cell Research, University of Kragujevac, Kragujevac, Serbia
- Department of Genetics, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Marina Miletic Kovacevic
- Department of Histology and Embryology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Nebojsa Arsenijevic
- Faculty of Medical Sciences, Center for Molecular Medicine and Stem Cell Research, University of Kragujevac, Kragujevac, Serbia
| | - Miodrag L. Lukic
- Faculty of Medical Sciences, Center for Molecular Medicine and Stem Cell Research, University of Kragujevac, Kragujevac, Serbia
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30
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Tai Y, Wang Q, Korner H, Zhang L, Wei W. Molecular Mechanisms of T Cells Activation by Dendritic Cells in Autoimmune Diseases. Front Pharmacol 2018; 9:642. [PMID: 29997500 PMCID: PMC6028573 DOI: 10.3389/fphar.2018.00642] [Citation(s) in RCA: 120] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 05/29/2018] [Indexed: 12/21/2022] Open
Abstract
The interaction between T cell and dendritic cells (DCs) that leads to T cell activation affects the progression of the immune response including autoimmune diseases. Antigen presentation on immune cell surface, formation of an immunological synapse (IS), and specific identification of complex by T cells including two activating signals are necessary steps that lead to T cell activation. The formation of stimulatory IS involves the inclusion of costimulatory molecules, such as ICAM-1/LFA-1 and CD28/B7-1, and so on. Some fusion proteins and monoclonal antibodies targeting costimulatory molecules have been developed and approved to treat autoimmune diseases, including rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), multiple sclerosis (MS), type I diabetes (T1D), inflammatory bowel disease (IBD), and psoriasis. These biological agents, including CTLA-4- and LFA-3-Ig, anti-CD3 monoclonal antibody, could prevent the successful engagement of DCs by T cell with significant efficacy and safety profile. In this article, we reviewed the molecular mechanisms of T cell activation during the interaction between T cells and DCs, and summarized some biological agents that target costimulatory molecules involved in the regulation of T cell activation.
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Affiliation(s)
- Yu Tai
- Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anti-inflammatory Immune Drugs Collaborative Innovation Center, Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China
| | - Qingtong Wang
- Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anti-inflammatory Immune Drugs Collaborative Innovation Center, Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China
| | - Heinrich Korner
- Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anti-inflammatory Immune Drugs Collaborative Innovation Center, Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China.,Menzies Institute for Medical Research, Hobart, TAS, Australia
| | - Lingling Zhang
- Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anti-inflammatory Immune Drugs Collaborative Innovation Center, Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China
| | - Wei Wei
- Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anti-inflammatory Immune Drugs Collaborative Innovation Center, Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China
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31
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Dendritic Cells as an Alternate Approach for Treatment of Neurodegenerative Disorders. Cell Mol Neurobiol 2018; 38:1207-1214. [DOI: 10.1007/s10571-018-0598-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 06/11/2018] [Indexed: 12/17/2022]
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Flórez-Grau G, Zubizarreta I, Cabezón R, Villoslada P, Benitez-Ribas D. Tolerogenic Dendritic Cells as a Promising Antigen-Specific Therapy in the Treatment of Multiple Sclerosis and Neuromyelitis Optica From Preclinical to Clinical Trials. Front Immunol 2018; 9:1169. [PMID: 29904379 PMCID: PMC5990597 DOI: 10.3389/fimmu.2018.01169] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 05/09/2018] [Indexed: 12/20/2022] Open
Abstract
The identification of activated T-lymphocytes restricted to myelin-derived immunogenic peptides in multiple sclerosis (MS) and aquaporin-4 water channel in neuromyelitis optica (NMO) in the blood of patients opened the possibility for developing highly selective and disease-specific therapeutic approaches. Antigen presenting cells and in particular dendritic cells (DCs) represent a strategy to inhibit pro-inflammatory T helper cells. DCs are located in peripheral and lymphoid tissues and are essential for homeostasis of T cell-dependent immune responses. The expression of a particular set of receptors involved in pathogen recognition confers to DCs the property to initiate immune responses. However, in the absence of danger signals different DC subsets have been revealed to induce active tolerance by inducing regulatory T cells, inhibiting pro-inflammatory T helper cells responses or both. Interestingly, several protocols to generate clinical-grade tolerogenic DC (Tol-DC) in vitro have been described, offering the possibility to restore the homeostasis to central nervous system-related antigens. In this review, we discuss about different DC subsets and their role in tolerance induction, the different protocols to generate Tol-DCs and preclinical studies in animal models as well as describe recent characterization of Tol-DCs for clinical application in autoimmune diseases and in particular in MS and NMO patients. In addition, we discuss the clinical trials ongoing based on Tol-DCs to treat different autoimmune diseases.
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Affiliation(s)
- Georgina Flórez-Grau
- Department of Immunology, Hospital Clinic i Provincial, Barcelona, Spain.,Neuroimmunology Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Irati Zubizarreta
- Neuroimmunology Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Raquel Cabezón
- Department of Immunology, Hospital Clinic i Provincial, Barcelona, Spain.,Neuroimmunology Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Pablo Villoslada
- Neuroimmunology Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
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Paiatto LN, Silva FGD, Yamada ÁT, Tamashiro WMSC, Simioni PU. Adoptive transfer of dendritic cells expressing CD11c reduces the immunological response associated with experimental colitis in BALB/c mice. PLoS One 2018; 13:e0196994. [PMID: 29738575 PMCID: PMC5940207 DOI: 10.1371/journal.pone.0196994] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Accepted: 04/24/2018] [Indexed: 01/14/2023] Open
Abstract
INTRODUCTION In addition to conventional therapies, several new strategies have been proposed for modulating autoimmune diseases, including the adoptive transfer of immunological cells. In this context, dendritic cells (DCs) appear to be one of the most promising treatments for autoimmune disorders. The present study aimed to evaluate the effects of adoptive transfer of DCs obtained from both naïve and ovalbumin (OVA)-tolerant mice on the severity of TNBS induced colitis and analyze the eventual protective mechanisms. METHODS AND RESULTS To induce oral tolerance, BALB/c mice were fed 4mg/mL OVA solution for seven consecutive days. Spleen DCs were isolated from tolerant (tDC) and naïve (nDC) mice, and then adoptively transferred to syngeneic mice. Three days later, colitis was induced in DC treated mice by intrarectal instillation of 100μg2,4,6-trinitrobenzenesulfonic acid (TNBS) dissolved in 50% ethanol. Control subjects received only intrarectal instillation of either TNBS solution or a vehicle. Five days later, mice from all groups were euthanized and examined for physiological and immunological parameters. Regarding the phenotype, we observed that the frequencies of CD11+ MHC II+ and CD11+ MHCII+ CD86+ cells were significantly lower in DCs isolated from tolerant mice than in those from naive mice. However, pretreatment with both types of DCs was able to significantly reduce clinical signs of colitis such as diarrhea, rectal prolapse, bleeding, and cachexia, although only treatment with tDCs was able to prevent weight loss from instillation of TNBS. In vitro proliferation of spleen cells from mice treated with either type of DCs was significantly lower than that observed in splenic cell cultures of naïve mice. Although no significant difference was observed in the frequencies of Treg cells in the experimental groups, the frequency of Th17+CD4+cellsand the secretion of IL-17 were more reduced in the cultures of spleen cells from mice treated with either type of DCs. The levels of IL-9 and IFN-γ were lower in supernatants of cells from mice treated with nDCs. CONCLUSION The results allow us to conclude that the adoptive transfer of cells expressing CD11c is able to reduce the clinical and immunological signs of drug-induced colitis. Adoptive transfer of CD11c+DC isolated from both naive and tolerant mice altered the proliferative and T cell responses. To the best of our knowledge, there is no previously published data showing the protective effects of DCs from naïve or tolerant mice in the treatment of colitis.
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Affiliation(s)
- Lisiery N. Paiatto
- Institute of Biosciences, Universidade Estadual Paulista, UNESP, Rio Claro, SP, Brazil
| | - Fernanda G. D. Silva
- Faculty of Food Engineering, University of Campinas, UNICAMP, Campinas, São Paulo, Brazil
- Department of Food, School of Nutrition, Federal University of Ouro Preto, Ouro Preto, Minas Gerais, Brazil
| | - Áureo T. Yamada
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, UNICAMP, Campinas, São Paulo, Brazil
| | - Wirla M. S. C. Tamashiro
- Department of Genetics, Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas, UNICAMP, Campinas, São Paulo, Brazil
| | - Patricia U. Simioni
- Institute of Biosciences, Universidade Estadual Paulista, UNESP, Rio Claro, SP, Brazil
- Department of Genetics, Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas, UNICAMP, Campinas, São Paulo, Brazil
- Department of Biomedical Science, Faculty of Americana, FAM, Americana, São Paulo, Brazil
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De Laere M, Derdelinckx J, Hassi M, Kerosalo M, Oravamäki H, Van den Bergh J, Berneman Z, Cools N. Shuttling Tolerogenic Dendritic Cells across the Blood-Brain Barrier In Vitro via the Introduction of De Novo C-C Chemokine Receptor 5 Expression Using Messenger RNA Electroporation. Front Immunol 2018; 8:1964. [PMID: 29403473 PMCID: PMC5778265 DOI: 10.3389/fimmu.2017.01964] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Accepted: 12/19/2017] [Indexed: 01/06/2023] Open
Abstract
The use of tolerance-inducing dendritic cells (tolDCs) has been proven to be safe and well tolerated in the treatment of autoimmune diseases. Nevertheless, several challenges remain, including finding ways to facilitate the migration of cell therapeutic products to lymph nodes, and the site of inflammation. In the treatment of neuroinflammatory diseases, such as multiple sclerosis (MS), the blood-brain barrier (BBB) represents a major obstacle to the delivery of therapeutic agents to the inflamed central nervous system (CNS). As it was previously demonstrated that C-C chemokine receptor 5 (CCR5) may be involved in inflammatory migration of DCs, the aim of this study was to investigate CCR5-driven migration of tolDCs. Only a minority of in vitro generated vitamin D3 (vitD3)-treated tolDCs expressed the inflammatory chemokine receptor CCR5. Thus, messenger RNA (mRNA) encoding CCR5 was introduced by means of electroporation (EP). After mRNA EP, tolDCs transiently displayed increased levels of CCR5 protein expression. Accordingly, the capacity of mRNA electroporated tolDCs to transmigrate toward a chemokine gradient in an in vitro model of the BBB improved significantly. Neither the tolerogenic phenotype nor the T cell-stimulatory function of tolDCs was affected by mRNA EP. EP of tolDCs with mRNA encoding CCR5 enabled these cells to migrate to inflammatory sites. The approach used herein has important implications for the treatment of MS. Using this approach, tolDCs actively shuttle across the BBB, allowing in situ down-modulation of autoimmune responses in the CNS.
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Affiliation(s)
- Maxime De Laere
- Laboratory of Experimental Hematology, Faculty of Medicine and Health Sciences, Vaccine & Infectious Disease Institute (VAXINFECTIO), University of Antwerp, Wilrijk, Belgium
| | - Judith Derdelinckx
- Laboratory of Experimental Hematology, Faculty of Medicine and Health Sciences, Vaccine & Infectious Disease Institute (VAXINFECTIO), University of Antwerp, Wilrijk, Belgium.,Department of Neurology, Antwerp University Hospital, Edegem, Belgium
| | - Mari Hassi
- Laboratory of Experimental Hematology, Faculty of Medicine and Health Sciences, Vaccine & Infectious Disease Institute (VAXINFECTIO), University of Antwerp, Wilrijk, Belgium
| | - Mari Kerosalo
- Laboratory of Experimental Hematology, Faculty of Medicine and Health Sciences, Vaccine & Infectious Disease Institute (VAXINFECTIO), University of Antwerp, Wilrijk, Belgium
| | - Heidi Oravamäki
- Laboratory of Experimental Hematology, Faculty of Medicine and Health Sciences, Vaccine & Infectious Disease Institute (VAXINFECTIO), University of Antwerp, Wilrijk, Belgium
| | - Johan Van den Bergh
- Laboratory of Experimental Hematology, Faculty of Medicine and Health Sciences, Vaccine & Infectious Disease Institute (VAXINFECTIO), University of Antwerp, Wilrijk, Belgium
| | - Zwi Berneman
- Laboratory of Experimental Hematology, Faculty of Medicine and Health Sciences, Vaccine & Infectious Disease Institute (VAXINFECTIO), University of Antwerp, Wilrijk, Belgium.,Center for Cell Therapy and Regenerative Medicine, Antwerp University Hospital, Edegem, Belgium
| | - Nathalie Cools
- Laboratory of Experimental Hematology, Faculty of Medicine and Health Sciences, Vaccine & Infectious Disease Institute (VAXINFECTIO), University of Antwerp, Wilrijk, Belgium
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35
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Thomé R, Moore JN, Mari ER, Rasouli J, Hwang D, Yoshimura S, Ciric B, Zhang GX, Rostami AM. Induction of Peripheral Tolerance in Ongoing Autoimmune Inflammation Requires Interleukin 27 Signaling in Dendritic Cells. Front Immunol 2017; 8:1392. [PMID: 29163476 PMCID: PMC5663690 DOI: 10.3389/fimmu.2017.01392] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Accepted: 10/09/2017] [Indexed: 01/08/2023] Open
Abstract
Peripheral tolerance to autoantigens is induced via suppression of self-reactive lymphocytes, stimulation of tolerogenic dendritic cells (DCs) and regulatory T (Treg) cells. Interleukin (IL)-27 induces tolerogenic DCs and Treg cells; however, it is not known whether IL-27 is important for tolerance induction. We immunized wild-type (WT) and IL-27 receptor (WSX-1) knockout mice with MOG35–55 for induction of experimental autoimmune encephalomyelitis and intravenously (i.v.) injected them with MOG35–55 after onset of disease to induce i.v. tolerance. i.v. administration of MOG35–55 reduced disease severity in WT mice, but was ineffective in Wsx−/− mice. IL-27 signaling in DCs was important for tolerance induction, whereas its signaling in T cells was not. Further mechanistic studies showed that IL-27-dependent tolerance relied on cooperation of distinct subsets of spleen DCs with the ability to induce T cell-derived IL-10 and IFN-γ. Overall, our data show that IL-27 is a key cytokine in antigen-induced peripheral tolerance and may provide basis for improvement of antigen-specific tolerance approaches in multiple sclerosis and other autoimmune diseases.
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Affiliation(s)
- Rodolfo Thomé
- Department of Neurology, Jefferson Hospital for Neuroscience, Thomas Jefferson University, Philadelphia, PA, United States
| | - Jason N Moore
- Department of Neurology, Jefferson Hospital for Neuroscience, Thomas Jefferson University, Philadelphia, PA, United States
| | - Elisabeth R Mari
- Department of Neurology, Jefferson Hospital for Neuroscience, Thomas Jefferson University, Philadelphia, PA, United States
| | - Javad Rasouli
- Department of Neurology, Jefferson Hospital for Neuroscience, Thomas Jefferson University, Philadelphia, PA, United States
| | - Daniel Hwang
- Department of Neurology, Jefferson Hospital for Neuroscience, Thomas Jefferson University, Philadelphia, PA, United States
| | - Satoshi Yoshimura
- Department of Neurology, Jefferson Hospital for Neuroscience, Thomas Jefferson University, Philadelphia, PA, United States.,Department of Neurology, Graduate School of Medical Sciences, Neurological Institute, Kyushu University, Fukuoka, Japan
| | - Bogoljub Ciric
- Department of Neurology, Jefferson Hospital for Neuroscience, Thomas Jefferson University, Philadelphia, PA, United States
| | - Guang-Xian Zhang
- Department of Neurology, Jefferson Hospital for Neuroscience, Thomas Jefferson University, Philadelphia, PA, United States
| | - Abdolmohamad M Rostami
- Department of Neurology, Jefferson Hospital for Neuroscience, Thomas Jefferson University, Philadelphia, PA, United States
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36
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Kostadinova AI, Pablos-Tanarro A, Diks MAP, van Esch BCAM, Garssen J, Knippels LMJ, Willemsen LEM. Dietary Intervention with β-Lactoglobulin-Derived Peptides and a Specific Mixture of Fructo-Oligosaccharides and Bifidobacterium breve M-16V Facilitates the Prevention of Whey-Induced Allergy in Mice by Supporting a Tolerance-Prone Immune Environment. Front Immunol 2017; 8:1303. [PMID: 29123515 PMCID: PMC5662887 DOI: 10.3389/fimmu.2017.01303] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 09/27/2017] [Indexed: 12/27/2022] Open
Abstract
Cow's milk allergy (CMA) prevails in infants and brings increased risk of developing other allergic diseases. Oral administration of specific β-lactoglobulin (BLG)-derived peptides (PepMix) and a specific blend of short- and long-chain fructo-oligosaccharides and Bifidobacterium breve M-16V (FF/Bb) was found to partially prevent CMA development in mice. In this study, we aimed to expand the knowledge on the preventive potential and the underlying mechanisms of this approach. Three-week-old female C3H/HeOuJ mice were orally exposed to PepMix±FF/Bb prior to a 5-week oral sensitization with whole whey and cholera toxin as an adjuvant. The acute allergic skin response was determined after an intradermal challenge with whole whey protein. Following an oral challenge with whey, regulatory T cells (Tregs) in the small intestine lamina propria (SI-LP) and mRNA expression of immune markers in the Peyer's patches (PP) were investigated. The early impact of PepMix and FF/Bb interventions on the immune system during the oral tolerance (OT) induction phase was investigated after the last OT administration. Pre-exposing mice to PepMix+FF/Bb partially prevented the acute allergic skin response compared to PBS and increased Tregs and activated T cells in the SI-LP compared to sham-sensitized mice. It also increased the mRNA expression of Tbet over GATA3 in the PP of whey-sensitized mice. Directly upon the 6-day OT phase, FF/Bb intervention enhanced cecal content levels of propionic and butyric acid in PepMix-fed mice and the former was positively correlated with Foxp3+ cell numbers in the colon. In the PP of PepMix+FF/Bb-exposed mice, IL-22 mRNA expression increased and IL-10 followed the same tendency, while the Foxp3 expression was increased over GATA3 and RorγT. In the colon, the Tbet mRNA expression increased over GATA3, while IL-22 decreased. In addition, the Foxp3+/GATA3+ and regulatory/effector T cell ratios in the mesenteric lymph nodes and the CD11b+/CD11b- conventional dendritic cells ratio in the SI-LP were increased. In conclusion, the FF/Bb diet facilitates the capacity of the specific BLG-peptides to partially prevent the allergic response after sensitization to whole whey protein, possibly by creating a tolerance-prone environment during the OT phase. Such a dietary intervention might contribute to tailoring successful strategies for CMA prevention.
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Affiliation(s)
- Atanaska I Kostadinova
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, Netherlands.,Department of Immunology, Nutricia Research, Utrecht, Netherlands
| | - Alba Pablos-Tanarro
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, Netherlands.,Instituto de Investigación en Ciencias de la Alimentación (CIAL, CSIC-UAM), Madrid, Spain
| | - Mara A P Diks
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, Netherlands
| | - Betty C A M van Esch
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, Netherlands.,Department of Immunology, Nutricia Research, Utrecht, Netherlands
| | - Johan Garssen
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, Netherlands.,Department of Immunology, Nutricia Research, Utrecht, Netherlands
| | - Léon M J Knippels
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, Netherlands.,Department of Immunology, Nutricia Research, Utrecht, Netherlands
| | - Linette E M Willemsen
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, Netherlands
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Xiao L, Van't Land B, van de Worp WRPH, Stahl B, Folkerts G, Garssen J. Early-Life Nutritional Factors and Mucosal Immunity in the Development of Autoimmune Diabetes. Front Immunol 2017; 8:1219. [PMID: 29033938 PMCID: PMC5626949 DOI: 10.3389/fimmu.2017.01219] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 09/14/2017] [Indexed: 12/12/2022] Open
Abstract
Type 1 diabetes (T1D) is an immune-mediated disease with a strong genetic basis but might be influenced by non-genetic factors such as microbiome development that “programs” the immune system during early life as well. Factors influencing pathogenesis, including a leaky intestinal mucosal barrier, an aberrant gut microbiota composition, and altered immune responsiveness, offer potential targets for prevention and/or treatment of T1D through nutritional or pharmacologic means. In this review, nutritional approaches during early life in order to protect against T1D development have been discussed. The critical role of tolerogenic dendritic cells in central and peripheral tolerance has been emphasized. In addition, since the gut microbiota affects the development of T1D through short-chain fatty acid (SCFA)-dependent mechanisms, we hypothesize that nutritional intervention boosting SCFA production may be used as a novel prevention strategy. Current retrospective evidence has suggested that exclusive and prolonged breastfeeding might play a protective role against the development of T1D. The beneficial properties of human milk are possibly attributed to its bioactive components such as unique immune-modulatory components human milk oligosaccharides and metabolites derived thereof, including SCFAs. These components might play a key role in healthy immune development and creating a fit and resilient immune system in early and later life.
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Affiliation(s)
- Ling Xiao
- Faculty of Science, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, Netherlands
| | - Belinda Van't Land
- Nutricia Research, Utrecht, Netherlands.,Department of Pediatric Immunology, Wilhelmina Children's Hospital, University Medical Centre Utrecht, Utrecht, Netherlands
| | - Wouter R P H van de Worp
- Faculty of Science, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, Netherlands
| | | | - Gert Folkerts
- Faculty of Science, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, Netherlands
| | - Johan Garssen
- Faculty of Science, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, Netherlands.,Nutricia Research, Utrecht, Netherlands
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38
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Jiang Y, Ye L, Cui Y, Yang G, Yang W, Wang J, Hu J, Gu W, Shi C, Huang H, Wang C. Effects of Lactobacillus rhamnosus GG on the maturation and differentiation of dendritic cells in rotavirus-infected mice. Benef Microbes 2017; 8:645-656. [PMID: 28670908 DOI: 10.3920/bm2016.0157] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Rotavirus-related diarrhoea is considered one of the most important diseases in field animal production. In addition to the classic vaccine strategy, a number of studies have utilised probiotics, such as Lactobacillus rhamnosus GG (LGG), to prevent rotavirus-induced diarrhoea. Although it has been partially revealed that Toll-like receptors (TLRs) are involved in the LGG-mediated protection against rotavirus infection, the details of the underlying immunologic mechanisms remain largely unknown. In this study, three-to-four-week-old female BALB/c mice were divided into three groups and orally administered phosphate buffered saline (PBS), PBS plus rotavirus or LGG plus rotavirus, respectively. The differentiation and maturation of dendritic cells (DCs) were then determined by FACS, the expression levels of TLR-3 and nuclear factor kappa beta (NF-κB) were evaluated using real time PCR, and the production of inflammatory cytokines in mesenteric lymph nodes (MLNs) were determined by ELISA. The results demonstrated that rotavirus infection significantly increased the percentage of CD11c+CD11b+CD8a- DCs and decreased the percentage of CD11c+CD11b-CD8a+ DCs in MLNs. By contrast, the presence of LGG significantly decreased the percentage of CD11c+CD11b+CD8a- DCs and increased the percentage of CD11c+CD11b-CD8a+ DCs, which indicates that the differentiation of DCs is involved in the protective effects of LGG. Rotavirus infection also resulted in the increased expression of surface markers such as CD40, CD80 and MHC-II in DCs, and the administration of LGG significantly increased the expression level further. The mRNA levels of TLR-3 and NF-κB in the intestine and MLNs were also significantly increased in the presence of rotavirus, which was further increased in the presence of LGG. The production of inflammatory cytokines was also determined, and the results showed that rotavirus caused the increased production of interleukin (IL)-12 and tumour necrosis factor alpha; this effect was further enhanced by LGG. Meanwhile, although rotavirus infection led to the increased production of IL-6 and IL-10, the presence of LGG significantly decreased the mRNA levels of these cytokines. By contrast, rotavirus infection resulted in the decreased production of interferon gamma (IFN-γ), and the administration of LGG significantly increased the levels of IFN-γ. Taken together, the protective effects of LGG were partially due to the modulation of the differentiation and maturation of DCs, the increased production of TLR-3 and NF-κB, and the modulation of inflammatory cytokines.
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Affiliation(s)
- Y Jiang
- 1 College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of animal production and product quality safety of Ministry of Education, Jilin Agricultural University, 2888 Xincheng street, Changchun, Jilin Province 130118, China P.R
| | - L Ye
- 1 College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of animal production and product quality safety of Ministry of Education, Jilin Agricultural University, 2888 Xincheng street, Changchun, Jilin Province 130118, China P.R
| | - Y Cui
- 1 College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of animal production and product quality safety of Ministry of Education, Jilin Agricultural University, 2888 Xincheng street, Changchun, Jilin Province 130118, China P.R
| | - G Yang
- 1 College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of animal production and product quality safety of Ministry of Education, Jilin Agricultural University, 2888 Xincheng street, Changchun, Jilin Province 130118, China P.R
| | - W Yang
- 1 College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of animal production and product quality safety of Ministry of Education, Jilin Agricultural University, 2888 Xincheng street, Changchun, Jilin Province 130118, China P.R
| | - J Wang
- 1 College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of animal production and product quality safety of Ministry of Education, Jilin Agricultural University, 2888 Xincheng street, Changchun, Jilin Province 130118, China P.R
| | - J Hu
- 1 College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of animal production and product quality safety of Ministry of Education, Jilin Agricultural University, 2888 Xincheng street, Changchun, Jilin Province 130118, China P.R
| | - W Gu
- 1 College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of animal production and product quality safety of Ministry of Education, Jilin Agricultural University, 2888 Xincheng street, Changchun, Jilin Province 130118, China P.R.,2 Shandong Baolai-Leelai Bio-Tech Co., Ltd., Taian, Shandong province, China P.R
| | - C Shi
- 1 College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of animal production and product quality safety of Ministry of Education, Jilin Agricultural University, 2888 Xincheng street, Changchun, Jilin Province 130118, China P.R
| | - H Huang
- 1 College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of animal production and product quality safety of Ministry of Education, Jilin Agricultural University, 2888 Xincheng street, Changchun, Jilin Province 130118, China P.R
| | - C Wang
- 1 College of Animal Science and Technology, Jilin Provincial Engineering Research Center of Animal Probiotics, Key Laboratory of animal production and product quality safety of Ministry of Education, Jilin Agricultural University, 2888 Xincheng street, Changchun, Jilin Province 130118, China P.R
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Wang L, Li Z, Ciric B, Safavi F, Zhang GX, Rostami A. Selective depletion of CD11c + CD11b + dendritic cells partially abrogates tolerogenic effects of intravenous MOG in murine EAE. Eur J Immunol 2017; 46:2454-2466. [PMID: 27338697 DOI: 10.1002/eji.201546274] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Revised: 05/09/2016] [Accepted: 06/20/2016] [Indexed: 12/22/2022]
Abstract
Intravenous (i.v.) injection of a soluble myelin antigen can induce tolerance, which effectively ameliorates experimental autoimmune encephalomyelitis (EAE). We have previously shown that i.v. myelin oligodendrocyte glycoprotein (MOG) induces tolerance in EAE and expands a subpopulation of tolerogenic CD11c+ CD11b+ dendritic cells (DCs) with an immature phenotype having low expression of IA and co-stimulatory molecules CD40, CD86, and CD80. Here, we further investigate the role of tolerogenic DCs in i.v. tolerance by injecting clodronate-loaded liposomes, which selectively deplete CD11c+ CD11b+ and immature DCs, but not CD11c+ CD8+ DCs and mature DCs. I.v. MOG-induced suppression of EAE was partially, yet significantly, blocked by CD11c+ CD11b+ DC depletion. While i.v. MOG inhibited IA, CD40, CD80, CD86 expression and induced TGF-β, IL-27, IL-10 production in CD11c+ CD11b+ DCs, these effects were abrogated after injection of clodronate-loaded liposomes. Depletion of CD11c+ CD11b+ DCs also precluded i.v. autoantigen-induced T-cell tolerance, such as decreased production of IL-2, IFN-γ, IL-17 and numbers of IL-2+ , IFN-γ+ , and IL-17+ CD4+ T cells, as well as an increased proportion of CD4+ CD25+ Foxp3+ regulatory T cells and CD4+ IL-10+ Foxp3- Tr1 cells. CD11c+ CD11b+ DCs, through low expression of IA and costimulatory molecules as well as high expression of TGF-β, IL-27, and IL-10, play an important role in i.v. tolerance-induced EAE suppression.
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Affiliation(s)
- Limei Wang
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, USA.,Department of Neurology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Zichen Li
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Bogoljub Ciric
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Farinaz Safavi
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Guang-Xian Zhang
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, USA
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Bondoc A, Golbar HM, Pervin M, Katou-Ichikawa C, Tanaka M, Izawa T, Kuwamura M, Yamate J. Participation of Tumor-Associated Myeloid Cells in Progression of Amelanotic Melanoma (RMM Tumor Line) in F344 Rats, with Particular Reference to MHC Class II- and CD163-Expressing Cells. CANCER MICROENVIRONMENT 2017. [PMID: 28623530 DOI: 10.1007/s12307-017-0193-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Tumor progression is often influenced by infiltration of myeloid cells; depending on the M1- or M2-like activation status, these cells may have either inhibitory or promoting effects on tumor growth. We investigated the properties of tumor-associated myeloid cells in a previously established homotransplantable amelanotic melanoma (RMM tumor line) in F344 rats. RMM tumor nodules were allowed to reach the sizes of 0.5, 1, 2 and 3 cm, respectively. Immunohistochemistry and flow cytometry was performed for macrophage markers CD68 and CD163, and for the antigen-presenting cell marker, MHC class II. Although no significant change was observed in the number of CD68+ and CD163+ macrophages during RMM progression, the number of MHC class II+ antigen-presenting cells was reduced in 3 cm nodules. Real-time RT-PCR of laser microdissection samples obtained from RMM regions rich in MHC class II+ cells demonstrated high expressions of M1-like factors: IFN-γ, GM-CSF and IL-12a. Furthermore, fluorescence-activated cell sorting, followed by real-time RT-PCR for CD11b+ MHC class II+ (myeloid antigen-presenting cells), CD11b+ CD163+ (M2 type myeloid cells), CD11b+ CD80+ (M1 type myeloid cells) and CD11b+ CD11c+ (dendritic cells) cells was performed. Based on the levels of inflammation- and tumor progression-related factors, MHC class II+ antigen-presenting cells showed polarization towards M1, while CD163+ macrophages, towards M2. CD80+ and CD11c+ myeloid cells did not show clear functional polarization. Our results provide novel information on tumor-associated myeloid cells in amelanotic melanoma, and may become useful in further research on melanoma immunity.
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Affiliation(s)
- A Bondoc
- Laboratory of Veterinary Pathology, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-Ourai-Kita, Izumisano City, Osaka, 598-8531, Japan
| | - H M Golbar
- Laboratory of Veterinary Pathology, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-Ourai-Kita, Izumisano City, Osaka, 598-8531, Japan
| | - M Pervin
- Laboratory of Veterinary Pathology, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-Ourai-Kita, Izumisano City, Osaka, 598-8531, Japan
| | - C Katou-Ichikawa
- Laboratory of Veterinary Pathology, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-Ourai-Kita, Izumisano City, Osaka, 598-8531, Japan
| | - M Tanaka
- Laboratory of Veterinary Pathology, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-Ourai-Kita, Izumisano City, Osaka, 598-8531, Japan
| | - T Izawa
- Laboratory of Veterinary Pathology, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-Ourai-Kita, Izumisano City, Osaka, 598-8531, Japan
| | - M Kuwamura
- Laboratory of Veterinary Pathology, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-Ourai-Kita, Izumisano City, Osaka, 598-8531, Japan
| | - J Yamate
- Laboratory of Veterinary Pathology, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-Ourai-Kita, Izumisano City, Osaka, 598-8531, Japan.
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Harris VK, Bell L, Langan RA, Tuddenham J, Landy M, Sadiq SA. Fetuin-A deficiency protects mice from Experimental Autoimmune Encephalomyelitis (EAE) and correlates with altered innate immune response. PLoS One 2017; 12:e0175575. [PMID: 28388685 PMCID: PMC5384772 DOI: 10.1371/journal.pone.0175575] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Accepted: 03/28/2017] [Indexed: 12/22/2022] Open
Abstract
Fetuin-A is a biomarker of disease activity in multiple sclerosis. Our aim was to investigate whether Fetuin-A plays a direct role in the neuroinflammatory response in the mouse EAE model. Peak Fetuin-A expression in the CNS and in peripheral lymphoid tissue correlated with peak EAE disease activity. Fetuin-A-deficient mice showed reduced EAE severity associated with an accumulation of splenic monocyte and dendritic cell populations, increased IL-12p40, ASC1, and IL-1β expression, and an increase in T regulatory cells. The upregulation of Fetuin-A in LPS-stimulated dendritic cells and microglia further supports an intrinsic role of Fetuin-A in regulating innate immune activation during EAE.
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Affiliation(s)
- Violaine K. Harris
- Tisch Multiple Sclerosis Research Center of New York, New York, New York, United States of America
- * E-mail:
| | - Lena Bell
- Tisch Multiple Sclerosis Research Center of New York, New York, New York, United States of America
| | - Ruth-Anne Langan
- Tisch Multiple Sclerosis Research Center of New York, New York, New York, United States of America
| | - John Tuddenham
- Tisch Multiple Sclerosis Research Center of New York, New York, New York, United States of America
| | - Mark Landy
- Tisch Multiple Sclerosis Research Center of New York, New York, New York, United States of America
| | - Saud A. Sadiq
- Tisch Multiple Sclerosis Research Center of New York, New York, New York, United States of America
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Paterka M, Voss JO, Werr J, Reuter E, Franck S, Leuenberger T, Herz J, Radbruch H, Bopp T, Siffrin V, Zipp F. Dendritic cells tip the balance towards induction of regulatory T cells upon priming in experimental autoimmune encephalomyelitis. J Autoimmun 2017; 76:108-114. [DOI: 10.1016/j.jaut.2016.09.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 09/16/2016] [Accepted: 09/17/2016] [Indexed: 12/21/2022]
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Alexander ET, Minton AR, Peters MC, van Ryn J, Gilmour SK. Thrombin inhibition and cisplatin block tumor progression in ovarian cancer by alleviating the immunosuppressive microenvironment. Oncotarget 2016; 7:85291-85305. [PMID: 27852034 PMCID: PMC5356737 DOI: 10.18632/oncotarget.13300] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Accepted: 10/26/2016] [Indexed: 12/11/2022] Open
Abstract
Cancer is often associated with an increased risk of thrombotic complications which can be aggravated by treatment with chemotherapeutics such as cisplatin. Multiple lines of evidence suggest that thrombin activity promotes tumor growth and metastasis. We examined the effect of co-treatment with dabigatran etexilate, a direct thrombin inhibitor, and cisplatin using the murine ID8 ovarian cancer model. Mice receiving co-treatment with both dabigatran etexilate and low dose cisplatin had significantly smaller tumors, developed less ascites and had lower levels of circulating activated platelets and tissue factor (TF) positive microparticles than those treated with dabigatran etexilate or cisplatin alone. Co-treatment with dabigatran etexilate and cisplatin significantly decreased the number of Gr1+/CD11b+ myeloid derived suppresser cells and CD11b+/CD11c+ dendritic cells in the ascites of ID8 tumor-bearing mice. Co-treatment also significantly reduced levels of pro-tumorigenic cytokines including TGF-β, VEGF, IL-6, IL-10, and MCP-1 in the ascites while increasing IFN-γ production by CD8+ effector T cells in the tumor ascites. These results demonstrate that co-treatment with dabigatran etexilate significantly augments the anti-tumor activity of cisplatin in ovarian tumor progression by alleviating the immunosuppressive microenvironment, suggesting that thrombin may be a potential therapeutic target for treatment of ovarian cancer.
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Affiliation(s)
| | | | - Molly C. Peters
- Lankenau Institute for Medical Research, Wynnewood, PA 19096, USA
| | - Joanne van Ryn
- Boehringer Ingelheim Pharma GmbH & Co. KG, 88397 Biberach an der Riss, Germany
| | - Susan K. Gilmour
- Lankenau Institute for Medical Research, Wynnewood, PA 19096, USA
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Increase of Alternatively Activated Antigen Presenting Cells in Active Experimental Autoimmune Encephalomyelitis. J Neuroimmune Pharmacol 2016; 11:721-732. [PMID: 27423192 DOI: 10.1007/s11481-016-9696-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 06/27/2016] [Indexed: 12/31/2022]
Abstract
The importance of CD11c+ antigen-presenting cells (APCs) in the pathogenesis of experimental autoimmune encephalomyelitis (EAE) is well accepted and the gate keeper function of perivascular CD11c+ APCs has been demonstrated. CD11c can be expressed by APCs from external sources or by central nervous system (CNS) resident APCs such as microglia. Yet, changes in the gene expression pattern of CNS CD11c+ APCs during disease are still unclear and differentially expressed genes might play a decisive role in EAE progression. Due to their low numbers in the diseased brain and due to the absence of considerable numbers in the healthy CNS, analysis of CNS CD11c+ cells is technically difficult. To ask whether the CD11c+ APC population contributes to remission of EAE disease, we used Illumina deep mRNA sequencing (RNA-Seq) and quantitative real time polymerase chain reaction (qRT-PCR) analyses to identify the transcriptome of CD11c+ APCs during disease course. We identified a battery of genes that were significantly regulated during the exacerbation of the disease compared to remission and relapse. Three of these genes, Arginase-1, Chi3l3 and Ms4a8a, showed a higher expression at the exacerbation than at later time points during the disease, both in SJL/J and in C57BL/6 mice, and could be attributed to alternatively activated APCs. Expression of Arginase-1, Chi3l3 and Ms4a8a genes was linked to the disease phase of EAE rather than to disease score. Expression of these genes suggested that APCs resembling alternatively activated macrophages are involved during the first wave of neuroinflammation and can be directly associated with the disease progress.
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45
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Jiang Y, Yang G, Meng F, Yang W, Hu J, Ye L, Shi C, Wang C. Immunological mechanisms involved in probiotic-mediated protection against Citrobacter rodentium-induced colitis. Benef Microbes 2016; 7:397-407. [DOI: 10.3920/bm2015.0119] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Inflammatory bowel disease is a group of chronic, incurable inflammatory disorders of the gastrointestinal tract that cause severe diarrhoea, intestinal inflammation, pain, fatigue and weight loss. In this study, we first developed a model of Citrobacter rodentium-induced colitis and then evaluated the protective effects of selected probiotics on inflammation. The results showed that administration of a combination of probiotics including Lactobacillus rhamnosus ATCC 53103, Lactobacillus acidophilus ATCC 4356 and Lactobacillus plantarum A significantly increased the production of CD11c+ dendritic cells in the spleen (3.62% vs phosphate buffered saline (PBS)-treated control, P<0.01) and mesenteric lymph nodes (MLNs). In addition, the presence of probiotics significantly up-regulated the development of CD4+/CD25+/Foxp3+ regulatory T cells in MLNs by approximately 2.07% compared to the effect observed in the PBS-treated control (P<0.01) and down-regulated the expression of inflammatory cytokines, including interleukin-17, tumour necrosis factor-α and interferon-γ, by 0.11, 0.11 and 0.15%, respectively, compared to the effect observed in the PBS-treated control (P<0.01).These effects conferred protection against colitis, as shown by histopathological analyses.
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Affiliation(s)
- Y. Jiang
- College of Animal Science and Technology, Jilin Agricultural University, 2888 Xincheng Street, Changchun 130118, China P.R
| | - G. Yang
- College of Animal Science and Technology, Jilin Agricultural University, 2888 Xincheng Street, Changchun 130118, China P.R
| | - F. Meng
- Guangxi Veterinary Research Institute, 51 Aibei Road, Xixiangtang, Nanning, Guangxi, 530001, China P.R
| | - W. Yang
- College of Animal Science and Technology, Jilin Agricultural University, 2888 Xincheng Street, Changchun 130118, China P.R
| | - J. Hu
- College of Animal Science and Technology, Jilin Agricultural University, 2888 Xincheng Street, Changchun 130118, China P.R
| | - L. Ye
- College of Animal Science and Technology, Jilin Agricultural University, 2888 Xincheng Street, Changchun 130118, China P.R
| | - C. Shi
- College of Animal Science and Technology, Jilin Agricultural University, 2888 Xincheng Street, Changchun 130118, China P.R
| | - C. Wang
- College of Animal Science and Technology, Jilin Agricultural University, 2888 Xincheng Street, Changchun 130118, China P.R
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Mari ER, Rasouli J, Ciric B, Moore JN, Conejo-Garcia JR, Rajasagi N, Zhang GX, Rabinovich GA, Rostami A. Galectin-1 is essential for the induction of MOG35-55 -based intravenous tolerance in experimental autoimmune encephalomyelitis. Eur J Immunol 2016; 46:1783-96. [PMID: 27151444 DOI: 10.1002/eji.201546212] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 04/04/2016] [Accepted: 05/02/2016] [Indexed: 11/06/2022]
Abstract
In experimental autoimmune encephalomyelitis (EAE), intravenous (i.v.) injection of the antigen, myelin oligodendrocyte glycoprotein-derived peptide, MOG35-55 , suppresses disease development, a phenomenon called i.v. tolerance. Galectin-1, an endogenous glycan-binding protein, is upregulated during autoimmune neuroinflammation and plays immunoregulatory roles by inducing tolerogenic dendritic cells (DCs) and IL-10 producing regulatory type 1 T (Tr1) cells. To examine the role of galectin-1 in i.v. tolerance, we administered MOG35-55 -i.v. to wild-type (WT) and galectin-1 deficient (Lgals1(-/-) ) mice with ongoing EAE. MOG35-55 suppressed disease in the WT, but not in the Lgals1(-/-) mice. The numbers of Tr1 cells and Treg cells were increased in the CNS and periphery of tolerized WT mice. In contrast, Lgals1(-/-) MOG-i.v. mice had reduced numbers of Tr1 cells and Treg cells in the CNS and periphery, and reduced IL-27, IL-10, and TGF-β1 expression in DCs in the periphery. DCs derived from i.v.-tolerized WT mice suppressed disease when adoptively transferred into mice with ongoing EAE, whereas DCs from Lgals1(-/-) MOG-i.v. mice were not suppressive. These findings demonstrate that galectin-1 is required for i.v. tolerance induction, likely via induction of tolerogenic DCs leading to enhanced development of Tr1 cells, Treg cells, and downregulation of proinflammatory responses.
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Affiliation(s)
- Elisabeth R Mari
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Javad Rasouli
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Bogoljub Ciric
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Jason N Moore
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, USA.,Department of Pharmacology and Experimental Therapeutics, Thomas Jefferson University, Philadelphia, PA, USA
| | - José R Conejo-Garcia
- Tumor Microenvironment and Metastasis Program, The Wistar Institute, Philadelphia, PA, USA
| | - Naveen Rajasagi
- Comparative and Experimental Medicine, College of Veterinary Medicine, The University of Tennessee, Knoxville, TN, USA
| | - Guang-Xian Zhang
- Department of Neurology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Gabriel A Rabinovich
- Laboratory of Immunopathology, Institute of Biology and Experimental Medicine (IBYME), CONICET, Buenos Aires, Argentina.,School of Exact and Natural Sciences, University of Buenos Aires, Buenos Aires, Argentina
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Lan S, Wu L, Wang X, Wu J, Lin X, Wu W, Huang Z. Impact of HBeAg on the maturation and function of dendritic cells. Int J Infect Dis 2016; 46:42-8. [DOI: 10.1016/j.ijid.2016.03.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 12/16/2015] [Accepted: 03/24/2016] [Indexed: 02/06/2023] Open
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Tanoue S, Kaplan DE. CD14(+) regulatory dendritic cells in patients with hepatocellular carcinoma and cirrhosis. Hepatology 2016; 63:1391-2. [PMID: 26703333 PMCID: PMC4805440 DOI: 10.1002/hep.28419] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Shiroh Tanoue
- Medicine and Research Services, Philadelphia VA Medical Center, Philadelphia PA,Division of Gastroenterology, Department of Medicine, University of Pennsylvania
| | - David E. Kaplan
- Medicine and Research Services, Philadelphia VA Medical Center, Philadelphia PA,Division of Gastroenterology, Department of Medicine, University of Pennsylvania
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c-kit plays a critical role in induction of intravenous tolerance in experimental autoimmune encephalomyelitis. Immunol Res 2015; 61:294-302. [PMID: 25588867 DOI: 10.1007/s12026-015-8624-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
c-kit (CD117) is a tyrosine kinase receptor found in various types of immune cells. It has been shown that c-kit plays a role in the pathogenesis of multiple sclerosis, an inflammatory demyelinating disorder of the CNS. Recent data have suggested an immunoregulatory effect of c-kit. We therefore examined the role of c-kit in autoantigen-induced i.v. tolerance in experimental autoimmune encephalomyelitis (EAE), an animal model of MS. Our results show that induction of intravenous tolerance against EAE in B6 mice is characterized by increased numbers of CD117(+) cells and altered mast cell-associated molecules in the periphery and in the CNS. W(-sh) (c-kit-deficient) mice were resistant to i.v autoantigen-induced tolerance, with increased proinflammatory cytokine production in the periphery. I.v. autoantigen in WT mice suppressed the production of proinflammatory cytokines IFN-γ and IL-6 and up-regulated the expression of FoxP3, a transcription factor of Tregs; however, in W(-sh) mice, IFN-γ and IL-6 were increased with a failure of FoxP3 induction upon i.v. autoantigen injection and is thus a mechanism for resistance to i.v. tolerance induction in these mice. We conclude that c-kit signaling has a regulatory role in i.v. tolerance and could be a target for potential immunotherapy in autoimmune disorders.
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50
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Ulusoy C, Zibandeh N, Yıldırım S, Trakas N, Zisimopoulou P, Küçükerden M, Tașlı H, Tzartos S, Göker K, Tüzün E, Akkoç T. Dental follicle mesenchymal stem cell administration ameliorates muscle weakness in MuSK-immunized mice. J Neuroinflammation 2015; 12:231. [PMID: 26646841 PMCID: PMC4673854 DOI: 10.1186/s12974-015-0451-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Accepted: 12/04/2015] [Indexed: 01/09/2023] Open
Abstract
Background Myasthenia gravis (MG) is an antibody-mediated autoimmune disease of the neuromuscular junction (NMJ), mostly associated with acetylcholine receptor (AChR) antibodies. Around 5–10 % of MG patients show antibodies to muscle-specific tyrosine kinase (MuSK). Mesenchymal stem cell (MSC) administration has been shown to ameliorate muscle weakness in the experimental autoimmune myasthenia gravis (EAMG) model induced by AChR immunization. Methods To investigate the efficacy of stem cell treatment in MuSK-related EAMG, clinical and immunological features of MuSK-immunized mice with or without dental follicle MSC (DFMSC) treatment were compared. Results MuSK-immunized mice intravenously treated with DFMSC after second and third immunizations showed significantly lower EAMG incidence and severity and reduced serum anti-MuSK antibody, NMJ IgG, and C3 deposit levels and CD11b+ lymph node cell ratios. Moreover, lymph node cells of DFMSC-administered mice showed reduced proliferation and IL-6 and IL-12 production responses to MuSK stimulation. By contrast, proportions of B and T cell populations and production of a wide variety of cytokines were not affected from DFMSC treatment. Conclusions Our results suggest that DFMSC treatment shows its beneficial effects mostly through suppression of innate immune system, whereas other immune functions appear to be preserved. Stem cell treatment might thus constitute a specific and effective treatment method in MuSK-associated MG. Electronic supplementary material The online version of this article (doi:10.1186/s12974-015-0451-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Canan Ulusoy
- Department of Neuroscience, Institute for Experimental Medical Research (DETAE), Istanbul University, Istanbul, Turkey
| | - Noushin Zibandeh
- Division of Pediatric Allergy and Immunology, Marmara University Faculty of Medicine, Istanbul, Turkey
| | - Selin Yıldırım
- Division of Pediatric Allergy and Immunology, Marmara University Faculty of Medicine, Istanbul, Turkey
| | - Nikolaos Trakas
- Department of Neurobiology, Hellenic Pasteur Institute, Athens, Greece
| | | | - Melike Küçükerden
- Department of Neuroscience, Institute for Experimental Medical Research (DETAE), Istanbul University, Istanbul, Turkey
| | - Hatice Tașlı
- Department of Neuroscience, Institute for Experimental Medical Research (DETAE), Istanbul University, Istanbul, Turkey
| | - Socrates Tzartos
- Department of Neurobiology, Hellenic Pasteur Institute, Athens, Greece
| | - Kamil Göker
- Department of Oral and Maxillofacial Surgery, Marmara University Faculty of Dentistry, Istanbul, Turkey
| | - Erdem Tüzün
- Department of Neuroscience, Institute for Experimental Medical Research (DETAE), Istanbul University, Istanbul, Turkey. .,Department of Neurology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Capa, Turkey.
| | - Tunç Akkoç
- Division of Pediatric Allergy and Immunology, Marmara University Faculty of Medicine, Istanbul, Turkey
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