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Su J, Krock E, Barde S, Delaney A, Ribeiro J, Kato J, Agalave N, Wigerblad G, Matteo R, Sabbadini R, Josephson A, Chun J, Kultima K, Peyruchaud O, Hökfelt T, Svensson CI. Pain-like behavior in the collagen antibody-induced arthritis model is regulated by lysophosphatidic acid and activation of satellite glia cells. Brain Behav Immun 2022; 101:214-230. [PMID: 35026421 DOI: 10.1016/j.bbi.2022.01.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 12/14/2021] [Accepted: 01/07/2022] [Indexed: 12/30/2022] Open
Abstract
Inflammatory and neuropathic-like components underlie rheumatoid arthritis (RA)-associated pain, and lysophosphatidic acid (LPA) is linked to both joint inflammation in RA patients and to neuropathic pain. Thus, we investigated a role for LPA signalling using the collagen antibody-induced arthritis (CAIA) model. Pain-like behavior during the inflammatory phase and the late, neuropathic-like phase of CAIA was reversed by a neutralizing antibody generated against LPA and by an LPA1/3 receptor inhibitor, but joint inflammation was not affected. Autotaxin, an LPA synthesizing enzyme was upregulated in dorsal root ganglia (DRG) neurons during both CAIA phases, but not in joints or spinal cord. Late-phase pronociceptive neurochemical changes in the DRG were blocked in Lpar1 receptor deficient mice and reversed by LPA neutralization. In vitro and in vivo studies indicated that LPA regulates pain-like behavior via the LPA1 receptor on satellite glia cells (SGCs), which is expressed by both human and mouse SGCs in the DRG. Furthermore, CAIA-induced SGC activity is reversed by phospholipid neutralization and blocked in Lpar1 deficient mice. Our findings suggest that the regulation of CAIA-induced pain-like behavior by LPA signalling is a peripheral event, associated with the DRGs and involving increased pronociceptive activity of SGCs, which in turn act on sensory neurons.
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Affiliation(s)
- Jie Su
- Department of Physiology and Pharmacology, Center for Molecular Medicine, Karolinska Institutet, 17177 Stockholm, Sweden; Department of Medical Biochemistry and Biophysics, Division of Molecular Neurobiology, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Emerson Krock
- Department of Physiology and Pharmacology, Center for Molecular Medicine, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Swapnali Barde
- Department of Neuroscience, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Ada Delaney
- Department of Physiology and Pharmacology, Center for Molecular Medicine, Karolinska Institutet, 17177 Stockholm, Sweden
| | | | - Jungo Kato
- Department of Physiology and Pharmacology, Center for Molecular Medicine, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Nilesh Agalave
- Department of Physiology and Pharmacology, Center for Molecular Medicine, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Gustaf Wigerblad
- Department of Physiology and Pharmacology, Center for Molecular Medicine, Karolinska Institutet, 17177 Stockholm, Sweden
| | | | - Roger Sabbadini
- LPath Inc, San Diego, United States; Department of Biology, San Diego State University, 92182, United States
| | - Anna Josephson
- Department of Neuroscience, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Jerold Chun
- Translational Neuroscience Initiative, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, United States
| | - Kim Kultima
- Department of Physiology and Pharmacology, Center for Molecular Medicine, Karolinska Institutet, 17177 Stockholm, Sweden; Department of Medical Sciences, Uppsala University, 75185 Uppsala, Sweden
| | | | - Tomas Hökfelt
- Department of Neuroscience, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Camilla I Svensson
- Department of Physiology and Pharmacology, Center for Molecular Medicine, Karolinska Institutet, 17177 Stockholm, Sweden.
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Hosny NM, Sherif YE. Anti-inflammatory activity of (2E,15E)-2-[1-(2-aminophenyl)ethylidineamino]-N′-[1-(2-aminophenyl)ethylidene]benzoic acid hydrazide (AEBH) and some of its nanoparticles rare earth complexes. MONATSHEFTE FUR CHEMIE 2016. [DOI: 10.1007/s00706-016-1709-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Khmaladze I, Saxena A, Nandakumar KS, Holmdahl R. B-cell epitope spreading and inflammation in a mouse model of arthritis is associated with a deficiency in reactive oxygen species production. Eur J Immunol 2015; 45:2243-51. [DOI: 10.1002/eji.201545518] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Revised: 03/28/2015] [Accepted: 05/15/2015] [Indexed: 12/18/2022]
Affiliation(s)
- Ia Khmaladze
- Medical Inflammation Research; Department of Medical Biochemistry and Biophysics; Karolinska Institutet; Stockholm Sweden
- Unit of Dermatology, Department of Medicine; Karolinska Institutet; Stockholm Sweden
| | - Amit Saxena
- Medical Inflammation Research; Department of Medical Biochemistry and Biophysics; Karolinska Institutet; Stockholm Sweden
| | - Kutty Selva Nandakumar
- Medical Inflammation Research; Department of Medical Biochemistry and Biophysics; Karolinska Institutet; Stockholm Sweden
| | - Rikard Holmdahl
- Medical Inflammation Research; Department of Medical Biochemistry and Biophysics; Karolinska Institutet; Stockholm Sweden
- Unit of Medical Inflammation Research; Southern Medical University; Guangzhou China
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Hosny NM, Sherif YE. Synthesis, structural, optical and anti-rheumatic activity of metal complexes derived from (E)-2-amino-N-(1-(2-aminophenyl)ethylidene)benzohydrazide (2-AAB) with Ru(III), Pd(II) and Zr(IV). SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 136 Pt B:510-519. [PMID: 25448952 DOI: 10.1016/j.saa.2014.09.064] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 09/11/2014] [Accepted: 09/18/2014] [Indexed: 06/04/2023]
Abstract
Three new metal complexes derived from Pd(II), Ru(III) and Zr(IV) with (E)-2-amino-N-(1-(2-aminophenyl)ethylidene)benzohydrazide (2-AAB) have been synthesized. The isolated complexes were characterized by elemental analyses, FT-IR, UV-Vis, ES-MS, (1)H NMR, XRD, thermal analyses (TGA and DTA) and conductance. The morphology and the particle size were determined by transmittance electron microscope (TEM). The results showed that, the ligand coordinates to Pd(II) in the enol form, while it coordinates to Ru(III) and Zr(IV) in the keto form. A square planar geometry is suggested for Pd(II) complex and octahedral geometries are suggested for Ru(III) and Zr(IV) complexes. The optical band gaps of the isolated complexes were measured and indicated the semi-conductivity nature of the complexes. The anti-inflammatory and analgesic activities of the ligand and its complexes showed that, Ru(III) complex has higher effect than the well known drug "meloxicam".
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Affiliation(s)
- Nasser Mohammed Hosny
- Chemistry Department, Faculty of Science, Port-Said University, 23 December Street, Port-Said, Egypt.
| | - Yousery E Sherif
- Department of Chemistry, Faculty of Science and Arts, Ulla, Taibah University, Saudi Arabia; Clinical Pharmacology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
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van den Berg WB. Animal models of arthritis. Rheumatology (Oxford) 2015. [DOI: 10.1016/b978-0-323-09138-1.00090-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Gouda MA, Sherif YES, Elsherbini MS. Synthesis, Anti-Inflammatory, and Analgesic Evaluation of Some 2-Amino-5-Selenothiazoles. PHOSPHORUS SULFUR 2014. [DOI: 10.1080/10426507.2014.884091] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Moustafa A. Gouda
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, 35516, Egypt
- Department of Chemistry, Faculty of Science and Arts, Ulla, Taibah University, Kingdom of Saudi Arabia
| | - Yousery El-Sayed Sherif
- Department of Chemistry, Faculty of Science and Arts, Ulla, Taibah University, Kingdom of Saudi Arabia
- Department of Clinical Pharmacology, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Mohamed S. Elsherbini
- Department of Chemistry, Faculty of Science, Al Jouf University, Sakaka, Kingdom of Saudi Arabia
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Anti-rheumatic potential of ethyl 2-(2-cyano-3-mercapto-3-(phenylamino) acrylamido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate and its Co(II), Cu(II) and Zn(II) complexes. Eur J Med Chem 2014; 83:338-43. [DOI: 10.1016/j.ejmech.2014.06.038] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2013] [Revised: 06/16/2014] [Accepted: 06/17/2014] [Indexed: 02/02/2023]
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Lindh I, Snir O, Lönnblom E, Uysal H, Andersson I, Nandakumar KS, Vierboom M, 't Hart B, Malmström V, Holmdahl R. Type II collagen antibody response is enriched in the synovial fluid of rheumatoid joints and directed to the same major epitopes as in collagen induced arthritis in primates and mice. Arthritis Res Ther 2014; 16:R143. [PMID: 25005029 PMCID: PMC4226996 DOI: 10.1186/ar4605] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Accepted: 06/11/2014] [Indexed: 01/17/2023] Open
Abstract
Introduction Antibodies towards type II collagen (CII) are detected in patients with rheumatoid arthritis (RA) and in non-human primates and rodents with collagen induced arthritis (CIA). We have previously shown that antibodies specific for several CII-epitopes are pathogenic using monoclonal antibodies from arthritic mice, although the role of different anti-CII epitopes has not been investigated in detail in other species. We therefore performed an inter-species comparative study of the autoantibody response to CII in patients with RA versus monkeys and mice with CIA. Methods Analysis of the full epitope repertoire along the disease course of CIA was performed using a library of CII triple-helical peptides. The antibody responses to the major CII epitopes were analyzed in sera and synovial fluid from RA patients, and in sera from rhesus monkeys (Macaca mulatta), common marmosets (Callithrix jacchus) and mice. Results Many CII epitopes including the major C1, U1, and J1 were associated with established CIA and arginine residues played an important role in the anti-CII antibody interactions. The major epitopes were also recognized in RA patients, both in sera and even more pronounced in synovial fluid: 77% of the patients had antibodies to the U1 epitope. The anti-CII immune response was not restricted to the anti-citrulline protein antibodies (ACPA) positive RA group. Conclusion CII conformational dependent antibody responses are common in RA and are likely to originate from rheumatoid joints but did not show a correlation with ACPA response. Importantly, the fine specificity of the anti-CII response is similar with CIA in monkeys and rodents where the recognized epitopes are conserved and have a major pathogenic role. Thus, anti-CII antibodies may both contribute to, as well as be the consequence of, local joint inflammation.
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Naruse K, Yoo SK, Kim SM, Choi YJ, Lee HM, Jin DI. Analysis of Tissue-Specific Expression of Human Type II Collagen cDNA Driven by Different Sizes of the Upstream Region of the β-Casein Promoter. Biosci Biotechnol Biochem 2014; 70:93-8. [PMID: 16428825 DOI: 10.1271/bbb.70.93] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
To investigate the ability of 1.8 kb or 3.1 kb bovine beta-casein promoter sequences for the expression regulation of transgene in vivo, transgenic mice were produced with human type II collagen gene fused to 1.8 kb and 3.1 kb of bovine beta-casein promoter by DNA microinjection. Five and three transgenic founder mice were produced using transgene constructs with 1.8 kb and 3.1 kb of bovine beta-casein promoters respectively. Founder mice were outbred with the wild type to produce F1 and F2 progenies. Total RNAs were extracted from four tissues (mammary gland, liver, kidney, and muscle) of female F1 transgenic mice of each transgenic line following parturition. RT-PCR and Northern blot analysis revealed that the expression level of transgene was variable among the transgenic lines, but transgenic mice containing 1.8 kb of promoter sequences exhibited more leaky expression of transgene in other tissues compared to those with 3.1 kb promoter. Moreover, Western blot analysis of transgenic mouse milk showed that human type II collagen proteins secreted into the milk of lactating transgenic mice contained 1.8 kb and 3.1 kb of bovine beta-casein promoter. These results suggest that promoter sequences of 3.1 kb bovine beta-casein gene can be used for induction of mammary gland-specific expression of transgenes in transgenic animals.
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Affiliation(s)
- Kenji Naruse
- Research Center for Transgenic and Cloned Pigs, Chungnam National University, Korea
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Sherif YE, Hosny NM. Synthesis, characterization, and anti-rheumatic potential of phthalazine-1,4-dione and its Cu(II) and Zn(II) complexes. Med Chem Res 2014. [DOI: 10.1007/s00044-013-0827-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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El-Gammal OA, Elmorsy EA, Sherif YE. Evaluation of the anti-inflammatory and analgesic effects of Cu(II) and Zn(II) complexes derived from 2-(naphthalen-1-yloxy)-N'-(1-(pyridin-2-1)ethylidene) acetohydrazide. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 120:332-339. [PMID: 24200647 DOI: 10.1016/j.saa.2013.09.067] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Revised: 09/11/2013] [Accepted: 09/26/2013] [Indexed: 06/02/2023]
Abstract
New Cu(II) and Zn(II) complexes of 2-(naphthalen-1-yloxy)-N'-(1-(pyridin-2-yl)ethylidene) acetohydrazide (HA2PNA) have been prepared and characterized by elemental analyses, spectral (IR, UV-visible, ESR and 1H NMR) as well as magnetic and thermal measurements. According to the data, the complexes assigned the formulae: [Cu(A2PNA)2]H2O and [Zn(A2PNA)(OAc)(H2O)], respectively. IR data revealed that the ligand acts as before ONN and after morever ONN mononegative tridentate via deprotonated carbonyl oxygen (CO) and both (CN)imine and (CN)pyridine nitrogen atoms. The bond lengths, bond angles, HOMO, LUMO, dipole moment and charges on the atoms have been calculated by using density functional theory (DFT) at B3LYP level with 6-31G and 6-31G(d,p) basis sets to confirm the geometry of the ligand and the investigated complexes. Also, the kinetic parameters were determined for each thermal degradation stage of the complexes using Coats-Redfern and Horowitz-Metzger methods. Moreover, the complexes have been tested for anti-inflammatory and analgesic activity in rat model of collagen adjuvant arthritis and compared with piroxicam. All the compounds showed a significant anti-inflammatory and analgesic effect versus piroxicam.
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Affiliation(s)
- Ola A El-Gammal
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, P.O. Box 70, Mansoura, Egypt.
| | - Elsayed A Elmorsy
- Pharmacology Department, Faculty of Medicine - North Jeddah Branch, King Abd El-Aziz University, Kingdom of Saudi Arabia; Clinical Pharmacology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Yousery E Sherif
- Clinical Pharmacology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt; Department of Chemistry, Faculty of Science and Arts, Ulla, Taibah University, Kingdom of Saudi Arabia
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van den Berg WB. Animal models of arthritis. Rheumatology (Oxford) 2011. [DOI: 10.1016/b978-0-323-06551-1.00087-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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Mohammed Hosny N, Sherif YE, El-Rahman AA. Spectral characterization and anti-inflammatory activity of Schiff-base complexes derived from leucine and 2-acetylpyridine. J COORD CHEM 2010. [DOI: 10.1080/00958970801930047] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Nasser Mohammed Hosny
- a Faculty of Education, Chemistry Department , Suez – Canal University , 42111, Port-Said, Egypt
| | - Yousery E. Sherif
- b Faculty of Medicine, Pharmacology Department , Mansoura University , Egypt
| | - Amany A. El-Rahman
- b Faculty of Medicine, Pharmacology Department , Mansoura University , Egypt
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Ippagunta SK, Brand DD, Luo J, Boyd KL, Calabrese C, Stienstra R, Van de Veerdonk FL, Netea MG, Joosten LAB, Lamkanfi M, Kanneganti TD. Inflammasome-independent role of apoptosis-associated speck-like protein containing a CARD (ASC) in T cell priming is critical for collagen-induced arthritis. J Biol Chem 2010; 285:12454-62. [PMID: 20177071 DOI: 10.1074/jbc.m109.093252] [Citation(s) in RCA: 78] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Rheumatoid arthritis is an autoimmune disease with 1% prevalence in the industrialized world. The contributions of the inflammasome components Nlrp3, ASC, and caspase-1 in the pathogenesis of collagen-induced arthritis have not been characterized. Here, we show that ASC(-/-) mice were protected from arthritis, whereas Nlrp3(-/-) and caspase-1(-/-) mice were susceptible to collagen-induced arthritis. Unlike Nlrp3(-/-) and caspase-1(-/-) mice, the production of collagen-specific antibodies was abolished in ASC(-/-) mice. This was due to a significantly reduced antigen-specific activation of lymphocytes by ASC(-/-) dendritic cells. Antigen-induced proliferation of purified ASC(-/-) T cells was restored upon incubation with wild type dendritic cells, but not when cultured with ASC(-/-) dendritic cells. Moreover, direct T cell receptor ligation with CD3 and CD28 antibodies induced a potent proliferation of ASC(-/-) T cells, indicating that ASC is specifically required in dendritic cells for antigen-induced T cell activation. Therefore, ASC fulfills a hitherto unrecognized inflammasome-independent role in dendritic cells that is crucial for T cell priming and the induction of antigen-specific cellular and humoral immunity and the onset of collagen-induced arthritis.
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Affiliation(s)
- Sirish K Ippagunta
- Department of Immunology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA
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Abstract
This review summarizes the major developments in animal models of arthritis in the past decade. It focuses on novel transgenic models, addresses the involvement of cytokines and discusses novel findings in cartilage and bone erosion. It is clear that interest has been raised in the direct arthritogenic role of autoantibodies, apart from T cell involvement, and their interaction with cells through Fcgamma receptors. In addition, a role for IL-6 and IL-17 and Th17 cells seems apparent in most T cell-driven arthritis models, with environmental triggering through Toll-like receptors contributing to this process. Further insights into enzymes involved in cartilage proteoglycan loss in arthritis, as well as mediators regulating bone erosion and bone apposition, have been gained.
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Affiliation(s)
- Wim B van den Berg
- Rheumatology Research and Advanced Therapeutics, Radboud University Nijmegen Medical Center, 6525 GA Nijmegen, The Netherlands.
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Holmberg J, Tuncel J, Yamada H, Lu S, Olofsson P, Holmdahl R. Pristane, a non-antigenic adjuvant, induces MHC class II-restricted, arthritogenic T cells in the rat. THE JOURNAL OF IMMUNOLOGY 2006; 176:1172-9. [PMID: 16394006 DOI: 10.4049/jimmunol.176.2.1172] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Pristane-induced arthritis (PIA) in rats, a model for rheumatoid arthritis (RA), is a T cell-dependent disease. However, pristane itself is a lipid and unable to form a stable complex with a MHC class II molecule. Therefore, the specificity and function of the T cells in PIA are as unclear as in rheumatoid arthritis. In this study, we show that activated CD4+ alphabetaT cells, which target peripheral joints, transfer PIA. The pristane-primed T cells are of oligo or polyclonal origin as determined by their arthritogenicity after stimulation with several mitogenic anti-TCRVbeta and anti-TCRValpha mAbs. Arthritogenic cells secreted IFN-gamma and TNF-alpha (but not IL-4) when stimulated with Con A in vitro, and pretreatments of recipient rats with either anti-IFN-gamma or a recombinant TNF-alpha receptor before transfer ameliorated arthritis development. Most importantly, we show that these T cells are MHC class II restricted, because treatment with Abs against either DQ or DR molecules ameliorates arthritis development. The MHC class II restriction was confirmed by transferring donor T cells to irradiated recipients that were syngenic, semiallogenic, or allogenic to MHC class II molecules, in which only syngenic and semiallogenic recipients developed arthritis. These data suggest that the in vivo administration of a non-antigenic adjuvant, like pristane, activates CD4+ alphabetaT cells that are MHC class II restricted and arthritogenic.
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MESH Headings
- Adjuvants, Immunologic/toxicity
- Adoptive Transfer
- Animals
- Animals, Congenic
- Arthritis, Experimental/etiology
- Arthritis, Experimental/immunology
- Arthritis, Experimental/pathology
- CD4-Positive T-Lymphocytes/immunology
- Disease Models, Animal
- Female
- Histocompatibility Antigens Class II/metabolism
- Interferon-gamma/biosynthesis
- Lymphocyte Activation
- Male
- Rats
- Rats, Inbred Strains
- Receptors, Antigen, T-Cell, alpha-beta/metabolism
- T-Lymphocyte Subsets/immunology
- Terpenes/toxicity
- Tumor Necrosis Factor-alpha/biosynthesis
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Affiliation(s)
- Jens Holmberg
- Medical Inflammation Research, Lund University, Lund, Sweden
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Bockermann R, Schubert D, Kamradt T, Holmdahl R. Induction of a B-cell-dependent chronic arthritis with glucose-6-phosphate isomerase. Arthritis Res Ther 2005; 7:R1316-24. [PMID: 16277685 PMCID: PMC1297579 DOI: 10.1186/ar1829] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2005] [Revised: 08/16/2005] [Accepted: 08/26/2005] [Indexed: 12/28/2022] Open
Abstract
Antibodies specific for glucose-6-phosphate isomerase (G6PI) from T-cell receptor transgenic K/BxN mice are known to induce arthritis in mice, and immunization of DBA/1 mice with G6PI led to acute arthritis without permanent deformation of their joints. Because rheumatoid arthritis is a chronic disease, we set out to identify the capacity of G6PI to induce chronic arthritis in mice. Immunization with recombinant human G6PI induced a chronically active arthritis in mice with a C3H genomic background, whereas the DBA/1 background allowed only acute arthritis and the C57BL/10 background permitted no or very mild arthritis. The disease was associated with the major histocompatibility region sharing an allelic association similar to that of collagen-induced arthritis (i.e. q > p > r). All strains developed a strong antibody response to G6PI that correlated only in the C3H.NB strain with arthritis severity. Similarly, a weak response to type II collagen in a few mice was observed, which was associated with arthritis in C3H.NB mice. Mice on the C3H background also developed ankylosing spondylitis in the vertebrae of the tail. Both C3H.Q and B10.Q mice deficient for B cells were resistant to arthritis. We conclude that G6PI has the ability to induce a chronic arthritis, which is MHC associated and B-cell dependent. Thus, there are striking similarities between this and the collagen-induced arthritis model.
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Affiliation(s)
- Robert Bockermann
- Section for Medical Inflammation Research, University of Lund, Lund, Sweden
| | - David Schubert
- Deutsches Rheumaforschungszentrum Berlin, Berlin, Germany
| | - Thomas Kamradt
- Deutsches Rheumaforschungszentrum Berlin, and Institut für Immunologie, Klinikum der FSU, Jena, Germany
| | - Rikard Holmdahl
- Section for Medical Inflammation Research, University of Lund, Lund, Sweden
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Malmstrøm V, Trollmo C, Klareskog L. The additive role of innate and adaptive immunity in the development of arthritis. Am J Med Sci 2004; 327:196-201. [PMID: 15084915 DOI: 10.1097/00000441-200404000-00005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The development of rheumatoid arthritis (RA) occurs as a result of interactions between genes and environment. The most well established association with both susceptibility and severity of disease is variations in the major histocompatibility complex (MHC) class II genes. This fact constitutes evidence in favor of a contribution from specific MHC class II restricted adaptive immunity to the pathogenesis of RA. However, considerable difficulties have been encountered in identifying reactivities within the adaptive immune system that are responsible for the development of chronic arthritis in humans. In this article, the authors suggest a hypothesis for arthritis development based on their, as well as others', research. In patients with certain genetic contexts, RA can be initiated by activation of the innate immune system alone. In other patients, the adaptive immune system may be needed for the induction of disease. Additionally, the authors believe that a perpetuation to a severe chronic arthritis occurs only when both the adaptive and the innate immune systems have been recruited.
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Affiliation(s)
- Vivianne Malmstrøm
- Department of Medicine at Karolinska Hospital, Karolinska Institutet, Stockholm, Sweden
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20
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Abstract
The limitations associated with the different approaches into the pathogenesis of the IIM have resulted in incomplete knowledge of disease mechanisms in myositis. In most research, in which muscle tissue was used to study the different aspects of disease, biopsies with inflammatory infiltrates have been selected. Although inflammatory cell infiltrates are a characteristic feature of myositis, selecting patients with inflammatory cell infiltrates for investigations naturally introduces a selection bias. Only a few studies have been published on patients without inflammatory infiltrates but with muscle weakness, and few studies have included follow-up biopsies after different therapies. The heterogeneity of the population of patients with myositis is another limitation of the studies of pathogenic mechanisms. Although most studies classify patients according to the Bohan and Peter criteria [118, 119], some studies used histopathologic criteria [6], and only a few studies included characterization with myositis-specific autoantibodies. Because myositis-specific autoantibodies are often associated with certain clinical profiles, classification according to autoantibody profiles could be important to define differences in the pathogenesis of different phenotypes [3]. From available data on pathogenic mechanisms it is evident that cellular and humoral immune responses are involved in disease mechanisms of myositis, but whether there is a muscle-specific immune response cannot be answered by current studies. It is likely that other mechanisms are important for development of muscle weakness, including metabolic disturbances, and muscle weakness could be caused by different mechanisms in different IIM subsets or in patients in different phases of the disease. There could be early changes, which reversibly affect the metabolism, and later, irreversible changes, that could be dependent on muscle fiber damage and replacement of muscle tissue by connective tissue and fat. Current findings suggest that cytokines, which are produced in muscle tissue from different cell sources including inflammatory cells, endothelial cells, and muscle fibers, could affect muscle function. Careful follow-up studies, including the effect of therapies targeting different molecules on molecular expression in muscle tissue, are likely to increase our knowledge on disease mechanisms. A better understanding of which molecules and mechanisms affect muscle function is likely to lead to improved, less toxic therapies in patients with myositis. Many possible target molecules for blocking therapies, especially the proinflammatory cytokines IL-1 and TNF-alpha, have been identified and should be studied in appropriate clinical settings given the currently poor outcomes of many patients with IIM.
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Affiliation(s)
- Ingrid E Lundberg
- Rheumatology Unit, Department of Medicine, Karolinska Institutet, Karolinska Hospital, SE-171 76, Stockholm, Sweden.
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21
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Lundberg IE. The role of cytokines, chemokines, and adhesion molecules in the pathogenesis of idiopathic inflammatory myopathies. Curr Rheumatol Rep 2000; 2:216-24. [PMID: 11123062 DOI: 10.1007/s11926-000-0082-y] [Citation(s) in RCA: 77] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Cytokines, chemokines, and adhesion molecules are important mediators in chronic inflammation and in immune regulation. In idiopathic inflammatory myopathies (IIM), increased expression of proinflammatory cytokines particularly interleukin (IL)-1alpha and IL-1beta, tumor necrosis factor (TNF)-alpha and macrophage inflammatory proteins (MIP)-1alpha, as well as of the inhibitory cytokines transforming growth factor (TGF)-beta was observed in muscle. There was no difference in cytokine and chemokine pattern between polymyositis, dermatomyositis, and inclusion body myositis, which could indicate that similar pathogenetic mechanisms are involved in these subsets of myositis. A prominent finding of IL-1alpha expression in endothelial cells, both in patients with active inflammation and in patients with chronic persisting muscle weakness without inflammation, makes this an interesting molecule in understanding the mechanisms for the pathogenesis of muscle weakness. Involvement of the blood vessels in the pathogenesis of myositis was further supported by increased expression of adhesion molecules and by a phenotypical expression of endothelial cells, resembling high endothelium venules in all three subsets of IIM. The molecular studies to date indicate a role of the microvessels in the pathogenesis of IIM not only in DM, as was previously suggested, but also in PM and IBM. The studies also indicate that IL-1alpha could be a target molecule for new therapeutical interventions.
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Affiliation(s)
- I E Lundberg
- Department of Rheumatology, Karolinska Hospital, S-171 76 Stockholm, Sweden.
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22
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Costa GL, Benson JM, Seroogy CM, Achacoso P, Fathman CG, Nolan GP. Targeting rare populations of murine antigen-specific T lymphocytes by retroviral transduction for potential application in gene therapy for autoimmune disease. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2000; 164:3581-90. [PMID: 10725713 DOI: 10.4049/jimmunol.164.7.3581] [Citation(s) in RCA: 88] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CD4+ T cells are important mediators in the pathogenesis of autoimmunity and would therefore provide ideal candidates for lymphocyte-based gene therapy. However, the number of Ag-specific T cells in any single lesion of autoimmunity may be quite low. Successful gene transfer into autoantigen-specific CD4+ T cells would serve as an ideal vehicle for site-targeted gene therapy if it were possible to transduce preferentially the small number of autoantigen-specific T cells. In this study we have demonstrated that retroviral infection of CD4+ lymphocytes from either autoantigen-stimulated TCR transgenic mice, or Ag-activated immunized nontransgenic mice, with a retroviral vector (pGCIRES), resulted in the transduction of only the limited number of Ag-reactive CD4+ T cells. In contrast, polyclonal activation of the same cultures resulted in transduction of non-antigen-specific lymphocytes. Transduction of Ag-reactive CD4+ T cells with pGCIRES retrovirus encoding the regulatory genes IL-4 (IL4) and soluble TNF receptor (STNFR) resulted in stable integration and long-term expression of recombinant gene products. Moreover, expression of the pGCIRES marker protein, GFP, directly correlated with the expression of the upstream regulatory gene. Retroviral transduction of CD4+ T cells targeted specifically Ag-reactive cells and was cell cycle-dependent and evident only during the mitosis phase. These studies suggest that retroviral transduction of autoantigen-specific murine CD4+ T cells, using the pGCIRES retroviral vector, may provide a potential method to target and isolate the low frequency of autoantigen-specific murine CD4+ T cells, and provides a rational approach to gene therapy in animal models of autoimmunity.
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Affiliation(s)
- G L Costa
- Department of Medicine, Division of Immunology, Stanford University School of Medicine, Stanford CA 94305, USA.
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Ghosh P. The pathobiology of osteoarthritis and the rationale for the use of pentosan polysulfate for its treatment. Semin Arthritis Rheum 1999; 28:211-67. [PMID: 10073500 DOI: 10.1016/s0049-0172(99)80021-3] [Citation(s) in RCA: 95] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
OBJECTIVES Structure-modifying osteoarthritis (OA) drugs (SMOADs) may be defined as agents that reverse, retard, or stabilize the underlying pathology of OA, thereby providing symptomatic relief in the long-term. The objective of this review was to evaluate the literature on sodium pentosan polysulfate (NaPPS) and calcium pentosan polysulfate (CaPPS), with respect to the pathobiology of OA to ascertain whether these agents should be classified as SMOADs. METHODS Published studies on NaPPS and CaPPS were selected on the basis of their relevance to the known pathobiology of OA, which also was reviewed. RESULTS Both NaPPS and CaPPS exhibit a wide range of pharmacological activities. Of significance was the ability of these agents to support chondrocyte anabolic activities and attenuate catabolic events responsible for loss of components of the cartilage extracellular matrix in OA joints. Although some of the anti-catabolic activities may be mediated through direct enzyme inhibition, NaPPS and CaPPS also have been shown to enter chondrocytes and bind to promoter proteins and alter gene expression of matrix metalloproteinases and possibly other mediators. In rat models of arthritis, NaPPS and CaPPS reduced joint swelling and inflammatory mediator levels in pouch fluids. Moreover, synoviocyte biosynthesis of high-molecular-weight hyaluronan, which is diminished in OA, was normalized when these cells were incubated with NaPPS and CaPPS or after intraarticular injection of NaPPS into arthritic joints. In rabbit, canine, and ovine models of OA, NaPPS and CaPPS preserved cartilage integrity, proteoglycan synthesis, and reduced matrix metalloproteinase activity. NaPPS and CaPPS stimulated the release of tissue plasminogen activator (t-PA), superoxide dismutase, and lipases from vascular endothelium while concomitantly decreasing plasma levels of the endogenous plasminogen activator inhibitor PAI-1. The net thrombolytic and lipolytic effects exhibited by NaPPS and CaPPS may serve to improve blood flow through subchondral capillaries of OA joints and improve bone cell nutrition. In geriatric OA dogs, NaPPS and CaPPS reduced symptoms, as well as normalized their thrombolytic status, threshold for platelet activation, and plasma triglyceride levels. These hematologic parameters were shown to be abnormal in OA animals before drug treatment. Similar outcomes were observed in OA patients when CaPPS or NaPPS were given orally or parenterally in both open and double-blind trials. CONCLUSIONS The data presented in this review support the contention that NaPPS and CaPPS should be classified as SMOADs. However, additional long-term clinical studies employing methods of assessing joint structural changes will be needed to confirm this view.
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Affiliation(s)
- P Ghosh
- Department of Surgery, University of Sydney, The Institute of Bone and Joint Research, Royal North Shore Hospital of Sydney, St Leonards, NSW, Australia.
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Cope AP, Sønderstrup G. Evaluating candidate autoantigens in rheumatoid arthritis. SPRINGER SEMINARS IN IMMUNOPATHOLOGY 1998; 20:23-39. [PMID: 9836367 DOI: 10.1007/bf00831997] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- A P Cope
- Kennedy Institute of Rheumatology, Hammersmith, London, UK
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Parry SL, Hall FC, Olson J, Kamradt T, Sønderstrup G. Autoreactivity versus autoaggression: a different perspective on human autoantigens. Curr Opin Immunol 1998; 10:663-8. [PMID: 9914227 DOI: 10.1016/s0952-7915(98)80086-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Antigen-specific B and T cell responses against myelin basic protein, as well as responses against beta-islet-cells or joint tissue, are commonly found both in patients with autoimmune disease and in normal control subjects with disease-associated HLA-DR/DQ alleles. Thus, autoreactive immune responses are not disease-specific; however, the presence of certain autoantibodies may have prognostic value and may aid in disease management.
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Affiliation(s)
- S L Parry
- Department of Microbiology and Immunology Stanford University School of Medicine Stanford CA 94305-5402 USA
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Imamura F, Aono H, Hasunuma T, Sumida T, Tateishi H, Maruo S, Nishioka K. Monoclonal expansion of synoviocytes in rheumatoid arthritis. ARTHRITIS AND RHEUMATISM 1998; 41:1979-86. [PMID: 9811053 DOI: 10.1002/1529-0131(199811)41:11<1979::aid-art13>3.0.co;2-c] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVE To examine whether synoviocytes from patients with rheumatoid arthritis (RA) have a stronger growth ability than those from patients with osteoarthritis (OA), and to determine whether these synoviocytes clonally expand in situ. METHODS Synovial tissues from 13 RA patients and 4 OA patients were cultured, and their ability to form colonies in soft agarose was examined. RA and OA synoviocytes were also examined in varying concentrations of fetal calf serum (FCS)-containing medium to test the effects of FCS on colony formation. DNA was extracted from clones with colony-forming ability in nonpannus lesions and from synoviocytes in pannus lesions. Restriction fragment length polymorphism (RFLP) analysis was used to examine phosphoglycerate kinase 1 (PGK-1) gene patterns. Production of cytokines by these cells was also assessed. RESULTS All 13 RA synoviocytes exhibited colony formation, whereas none of the 4 OA synoviocytes did. This tendency was also seen with all of the concentrations of FCS examined, although growth varied in a dose-dependent manner. In contrast to OA synovial clones, cloned RA synoviocytes obtained from colonies exhibited a partial RFLP PGK-1 gene pattern, suggesting that the clones originated from monoclonal cells. Of note, 3 of 7 noncloned synoviocytes from pannus lesions exhibited a monoclonal pattern. Pannus cells produced high levels of transforming growth factor beta and platelet-derived growth factor. CONCLUSION These findings suggest that synoviocytes with a strong growth ability are present in the rheumatoid synovium, and that these cells expand monoclonally, particularly in pannus lesions.
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Affiliation(s)
- F Imamura
- St. Marianna University School of Medicine, Kawasaki, Japan
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Ellis TM, Hardt NS, Campbell L, Piacentini DA, Atkinson MA. Cellular immune reactivities in women with silicone breast implants: a preliminary investigation. Ann Allergy Asthma Immunol 1997; 79:151-4. [PMID: 9291420 DOI: 10.1016/s1081-1206(10)63102-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND Surgical implantation of silicone breast prostheses has been conducted and considered safe for over 30 years. Some implant recipients, however, complain of a group of symptoms similar to those observed in connective tissue disorders, rheumatoid arthritis, systemic lupus erythematosus, or polymyositis. To date, immunologic sequelae have not been confirmed and remain controversial. OBJECTIVE To examine an autoimmune-like basis for the "silicone associated disease" reported by some women with silicone breast prostheses. METHODS Proliferative responses of peripheral blood mononuclear cells against a panel of control and connective tissue proteins and to compounds common to silicone prostheses were measured in 26 women who received silicone breast implants (with implants in place an average of 166.4 [standard deviation (SD) 58.3] months), and 23 age-matched and sex-matched healthy controls. RESULTS The frequency and intensity of cellular immune responses against collagen I, collagen III, fibrinogen, and fibronectin were significantly increased in silicone breast implant recipients versus controls. In implant subjects, the highest frequency of immune reactivity was directed against collagen I (11/26, 42%) with collagen III being the most immunostimulatory self-antigen with a mean stimulation index (SI) of 8.2 [95% confidence interval (95% CI) 3.2]. In addition, 10/26 (39%) of the implant recipients responded to more than one of the connective tissue antigens versus 0/23 (0%, P = .0007) healthy controls. Immunologic reactivities to other antigens, including silicone-based compounds, were remarkably similar. CONCLUSIONS The identification of self-reactivity towards these connective tissue antigens may provide important information for attempts at associating silicone breast implants with disease.
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Affiliation(s)
- T M Ellis
- Department of Pathology, University of Florida, Gainesville 32610-0275, USA
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Haqqi TM, Qu XM, Anthony D, Ma J, Sy MS. Immunization with T cell receptor V beta chain peptides deletes pathogenic T cells and prevents the induction of collagen-induced arthritis in mice. J Clin Invest 1996; 97:2849-58. [PMID: 8675697 PMCID: PMC507379 DOI: 10.1172/jci118741] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Collagen-induced arthritis (CIA) in susceptible strains of mice is an animal model of T cell-mediated inflammatory polyarthritis. Analysis of T cell receptor (TCR) V beta gene usage in cells isolated from arthritic joints of BUB/BnJ (BUB) mice (H-2q, TCR V beta a) showed that TCR V beta chain gene usage was limited to TCR V beta 3 and V beta 10 gene families. All of the BUB mice immunized with a mixture of TCR V beta 3 and TCR V beta 10 peptides, but not with control TCR V beta 14 peptide, were refractory to the induction of CIA. Immunization with TCR V beta 3 and V beta 10 peptides completely blocked the development of clinical and subclinical inflammation, formation of pannus and synovial hyperplasia, and the erosion of cartilage and bone. Further studies revealed that preimmunization of BUB mice with V beta 10 peptide alone was sufficient to render the mice resistant to CIA. Analysis of TCR V beta chain gene expression in lymph node cells from arthritic and arthritis-protected mice showed the expression of TCR V beta 10 subfamily in all of the arthritic mice, but not in arthritis-protected mice. Immunization with TCR V beta peptides did not diminish the humoral responses to chicken type-II collagen and also elicited significant levels of anti-V beta 3 and anti-V beta 10 peptide antibodies. Antibodies cross-reactive with mouse chicken type-II collagen were detected in both the arthritic and arthritis-protected mice. Adoptive transfer of serum from arthritis-protected BUB mice significantly delayed the onset (P < 0.005) of arthritis in recipient BUB mice. In contrast, mice injected with serum from arthritic mice had early onset of arthritis. These results demonstrate that immunization of BUB mice with TCR V beta chain peptides elicited antibodies reactive with the self-TCR and prevented the induction of collagen-induced arthritis by eliminating or downregulating pathogenic T cells and consequently blocking the development of humoral immune response. These findings may have clinical applications in treating human autoimmune diseases characterized by common TCR gene usage.
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Affiliation(s)
- T M Haqqi
- Department of Medicine, Case Western Reserve University, Cleveland, OH 44106-4946, USA.
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Joosten LA, Helsen MM, van de Loo FA, van den Berg WB. Anticytokine treatment of established type II collagen-induced arthritis in DBA/1 mice. A comparative study using anti-TNF alpha, anti-IL-1 alpha/beta, and IL-1Ra. ARTHRITIS AND RHEUMATISM 1996; 39:797-809. [PMID: 8639177 DOI: 10.1002/art.1780390513] [Citation(s) in RCA: 357] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
OBJECTIVE To examine the role of tumor necrosis factor alpha (TNF alpha), interleukin-1 alpha (IL-1 alpha), and IL-1 beta in collagen-induced arthritis (CIA), immediately after onset and during the phase of established arthritis. METHODS Male DBA/1 mice with collagen-induced arthritis were treated with antibodies against murine TNF alpha and IL-1 alpha/beta at different time points of the disease. IL-1 receptor antagonist (IL-1Ra) was administered using Alzet osmotic minipumps. The effect of anticytokine treatment was monitored by visual scoring. Histology and cytokine reverse transcription polymerase chain reaction (RT-PCR) analyses were performed at the end of the treatment period. RESULTS Anti-TNF alpha treatment showed efficacy shortly after onset of the disease, but had little effect on fully established CIA. Histologic analysis after early treatment revealed that anti-TNF alpha significantly reduced joint pathology, as determined by infiltration of inflammatory cells and cartilage damage. Anti-IL-1 alpha/beta treatment ameliorated both early and full-blown CIA. This clear suppression of established arthritis was confirmed by administration of high doses of IL-1Ra. Dose-response experiments showed that a continuous supply of 1 mg/day was needed for optimal suppression. Histologic analysis showed markedly reduced cartilage destruction both in the knee and the ankle joints. Autoradiography demonstrated full recovery of chondrocyte synthetic function of articular cartilage. In addition, we found that the IL-1 beta isoform plays a dominant role in established CIA. Profound suppression of CIA was observed with anti-IL-1 beta, although elimination of both IL-1 alpha and IL-1 beta still gave better protection. Analysis of messenger RNA with RT-PCR revealed that IL-1 beta was highly upregulated in synovium and cartilage at late stages of CIA, whereas anti-IL-1 beta treatment markedly reduced IL-1 beta message in the synovium. CONCLUSION The present study identified different TNF alpha/IL-1 dependencies in various stages of CIA and revealed that blocking of TNF alpha does not necessarily eliminate IL-1. Continuous, high doses of IL-1Ra are needed to block CIA.
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Affiliation(s)
- L A Joosten
- University Hospital Nijmegen, The Netherlands
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Malmström V, Michaëlsson E, Burkhardt H, Mattsson R, Vuorio E, Holmdahl R. Systemic versus cartilage-specific expression of a type II collagen-specific T-cell epitope determines the level of tolerance and susceptibility to arthritis. Proc Natl Acad Sci U S A 1996; 93:4480-5. [PMID: 8633094 PMCID: PMC39564 DOI: 10.1073/pnas.93.9.4480] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Immunization of mice with rat type II collagen (CII), a cartilage-specific protein, leads to development of collagen-induced arthritis (CIA), a model for rheumatoid arthritis. To define the interaction between the immune system and cartilage, we produced two sets of transgenic mice. In the first we point mutated the mouse CII gene to express an earlier defined T-cell epitope, CII-(256-270), present in rat CII. In the second we mutated the mouse type I collagen gene to express the same T-cell epitope. The mice with mutated type I collagen showed no T-cell reactivity to rat CII and were resistant to CIA. Thus, the CII-(256-270) epitope is immunodominant and critical for development of CIA. In contrast, the mice with mutated CII had an intact B-cell response and had T cells which could produce gamma interferon, but not proliferate, in response to CII. They developed CIA, albeit with a reduced incidence. Thus, we conclude that T cells recognize CII derived from endogenous cartilage and are partially tolerized but may still be capable of mediating CIA.
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Affiliation(s)
- V Malmström
- Department of Cell and Molecular Biology, Lund University, Sweden
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