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RNA Interference and BMP-2 Stimulation Allows Equine Chondrocytes Redifferentiation in 3D-Hypoxia Cell Culture Model: Application for Matrix-Induced Autologous Chondrocyte Implantation. Int J Mol Sci 2017; 18:ijms18091842. [PMID: 28837082 PMCID: PMC5618491 DOI: 10.3390/ijms18091842] [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: 07/20/2017] [Revised: 08/18/2017] [Accepted: 08/22/2017] [Indexed: 12/29/2022] Open
Abstract
As in humans, osteoarthritis (OA) causes considerable economic loss to the equine industry. New hopes for cartilage repair have emerged with the matrix-associated autologous chondrocyte implantation (MACI). Nevertheless, its limitation is due to the dedifferentiation occurring during the chondrocyte amplification phase, leading to the loss of its capacity to produce a hyaline extracellular matrix (ECM). To enhance the MACI therapy efficiency, we have developed a strategy for chondrocyte redifferentiation, and demonstrated its feasibility in the equine model. Thus, to mimic the cartilage microenvironment, the equine dedifferentiated chondrocytes were cultured in type I/III collagen sponges for 7 days under hypoxia in the presence of BMP-2. In addition, chondrocytes were transfected by siRNA targeting Col1a1 and Htra1 mRNAs, which are overexpressed during dedifferentiation and OA. To investigate the quality of the neo-synthesized ECM, specific and atypical cartilage markers were evaluated by RT-qPCR and Western blot. Our results show that the combination of 3D hypoxia cell culture, BMP-2 (Bone morphogenetic protein-2), and RNA interference, increases the chondrocytes functional indexes (Col2a1/Col1a1, Acan/Col1a1), leading to an effective chondrocyte redifferentiation. These data represent a proof of concept for this process of application, in vitro, in the equine model, and will lead to the improvement of the MACI efficiency for cartilage tissue engineering therapy in preclinical/clinical trials, both in equine and human medicine.
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Lee JY, Choi JK, Jeong NH, Yoo J, Ha YS, Lee B, Choi H, Park PH, Shin TY, Kwon TK, Lee SR, Lee S, Lee SW, Rho MC, Kim SH. Anti-inflammatory effects of ursolic acid-3-acetate on human synovial fibroblasts and a murine model of rheumatoid arthritis. Int Immunopharmacol 2017; 49:118-125. [PMID: 28577436 DOI: 10.1016/j.intimp.2017.05.028] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2016] [Revised: 05/20/2017] [Accepted: 05/23/2017] [Indexed: 12/18/2022]
Abstract
Ursolic acid (UA), a pentacyclic triterpenoid, is a common natural substance known to be effective in the treatment of inflammation, oxidative stress, and ulcers in arthritis. This study examined the effects of ursolic acid-3-acetate (UAA), a derivative of UA, on rheumatoid arthritis (RA) and verified the underlying mechanism of action by using a type-II collagen-induced arthritis (CIA) mice model and tumor necrosis factor (TNF)-α-stimulated RA synovial fibroblasts. The oral administration of UAA showed a decrease in clinical arthritis symptoms, paw thickness, histologic and radiologic changes, and serum IgG1 and IgG2a levels. UAA administration reduced Th1/Th17 phenotype CD4+ T lymphocyte expansion and inflammatory cytokine production in draining lymph nodes. In addition, UAA effectively reduced the expression and production of inflammatory mediators, including cytokines and matrix metalloproteinase-1/3 in the knee joint tissue and RA synovial fibroblasts, through the downregulation of IKKα/β, ΙκBα, and nuclear factor-κB. Our findings showed that UAA modulated helper T cell immune responses and matrix-degrading enzymes. The effects of UAA were comparable with those of the positive control drug, dexamethasone. In summary, all the evidence presented in this paper suggest that UAA could be a therapeutic candidate for the treatment of RA.
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Affiliation(s)
- Jong Yeong Lee
- CMRI, Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Jin Kyeong Choi
- CMRI, Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea; Molecular Immunology Section, Laboratory of Immunology, National Eye Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Na-Hee Jeong
- CMRI, Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Jeongsoo Yoo
- Department of Molecular Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Yeong Su Ha
- Department of Molecular Medicine, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Byungheon Lee
- Department of Biochemistry and Cell Biology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Hyukjae Choi
- College of Pharmacy, Yeungnam University, Gyeongsan, Republic of Korea
| | - Pil-Hoon Park
- College of Pharmacy, Yeungnam University, Gyeongsan, Republic of Korea
| | - Tae-Yong Shin
- College of Pharmacy, Woosuk University, Jeonju, Republic of Korea
| | - Taeg Kyu Kwon
- Department of Immunology, School of Medicine, Keimyung University, Daegu, Republic of Korea
| | - Sang-Rae Lee
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang, Republic of Korea
| | - Soyoung Lee
- Natural Product Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Republic of Korea
| | - Seung Woong Lee
- Natural Product Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Republic of Korea
| | - Mun-Chual Rho
- Natural Product Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Republic of Korea
| | - Sang-Hyun Kim
- CMRI, Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu, Republic of Korea.
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Lee JH, Kim B, Jin WJ, Kim HH, Ha H, Lee ZH. Pathogenic roles of CXCL10 signaling through CXCR3 and TLR4 in macrophages and T cells: relevance for arthritis. Arthritis Res Ther 2017; 19:163. [PMID: 28724396 PMCID: PMC5518115 DOI: 10.1186/s13075-017-1353-6] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Accepted: 05/30/2017] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by uncontrolled joint inflammation and destruction of bone and cartilage. We previously reported that C-X-C motif chemokine 10 (CXCL10; also called IP-10) has important roles in joint inflammation and bone destruction in arthritis. However, the specific mechanisms by which CXCL10 regulates the recruitment of inflammatory cells and the production of osteoclastogenic cytokines in RA progression are not fully understood. METHODS Bone marrow-derived macrophages and CD4+ T cells were isolated from wild-type (WT), Cxcl10 -/-, and Cxcr3 -/- mice. CXCL10-induced migration was performed using a Boyden chamber, and CXCL10-stimulated production of osteoclastogenic cytokines was measured by quantitative real-time PCR and ELISA. Collagen antibody-induced arthritis (CAIA) was induced by administration of collagen type II antibodies and lipopolysaccharide to the mice. Clinical scores were analyzed and hind paws were collected for high-resolution micro-CT, and histomorphometry. Serum was used to assess bone turnover and levels of osteoclastogenic cytokines. RESULTS CXCL10 increased the migration of inflammatory cells through C-X-C chemokine receptor 3 (CXCR3)-mediated, but not toll-like receptor 4 (TLR4)-mediated, ERK activation. Interestingly, both receptors CXCR3 and TLR4 were simultaneously required for CXCL10-stimulated production of osteoclastogenic cytokines in CD4+ T cells. Furthermore, calcineurin-dependent NFATc1 activation was essential for CXCL10-induced RANKL expression. In vivo, F4/80+ macrophages and CD4+ T cells robustly infiltrated into synovium of WT mice with CAIA but were significantly reduced in both Cxcl10 -/- and Cxcr3 -/- mice. Serum concentrations of osteoclastogenic cytokines and bone destruction were also reduced in the knockout mice, leading to attenuated progression of arthritis. CONCLUSION These findings highlight the importance of CXCL10 signaling in the pathogenesis of RA and provide previously unidentified details of the mechanisms by which CXCL10 promotes the development of arthritis.
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Affiliation(s)
- Jong-Ho Lee
- Brain Tumor Center and Department of Neuro-Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, 77030, USA
| | - Bongjun Kim
- Department of Cell and Developmental Biology, Dental Research Institute, School of Dentistry, Seoul National University, 28 Yeongon-dong, Jongno-gu, Seoul, 110-749, Republic of Korea
| | - Won Jong Jin
- Department of Cell and Developmental Biology, Dental Research Institute, School of Dentistry, Seoul National University, 28 Yeongon-dong, Jongno-gu, Seoul, 110-749, Republic of Korea
| | - Hong-Hee Kim
- Department of Cell and Developmental Biology, Dental Research Institute, School of Dentistry, Seoul National University, 28 Yeongon-dong, Jongno-gu, Seoul, 110-749, Republic of Korea
| | - Hyunil Ha
- Clinical Research Division, Korean Medicine-Based Herbal Drug Development Group, Korea Institute of Oriental Medicine, 483 Expo-Ro, Yuseong-Gu, Daejeon, 305-811, Republic of Korea.
| | - Zang Hee Lee
- Department of Cell and Developmental Biology, Dental Research Institute, School of Dentistry, Seoul National University, 28 Yeongon-dong, Jongno-gu, Seoul, 110-749, Republic of Korea.
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Isoegomaketone Alleviates the Development of Collagen Antibody-Induced Arthritis in Male Balb/c Mice. Molecules 2017; 22:molecules22071209. [PMID: 28753954 PMCID: PMC6152219 DOI: 10.3390/molecules22071209] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 07/10/2017] [Accepted: 07/10/2017] [Indexed: 02/07/2023] Open
Abstract
In this study, we attempted to identify and assess effects of isoegomaketone (IK) isolated from Perilla frutescens var. crispa on the development of rheumatoid arthritis (RA). RA was induced in male Balb/c mice by collagen antibody injection. Experimental animals were randomly divided into five groups: normal, collagen antibody-induced arthritis (CAIA), CAIA + IK (5 mg/kg/day), CAIA + IK (10 mg/kg/day), and CAIA + apigenin (16 mg/kg/day) and respective treatments were administered via oral gavage once per day for four days. Mice treated with IK (10 mg/kg/day) developed less severe arthritis than the control CAIA mice. Arthritic score, paw volume, and paw thickness were less significant compared to the control CAIA mice at day seven (73%, 15%, and 14% lower, respectively). Furthermore, histopathological examination of ankle for inflammation showed that infiltration of inflammatory cells and edema formation were reduced by IK treatment. Similarly, neutrophil to lymphocyte ratio (NLR) in whole blood was lower in mice treated with IK (10 mg/kg/day) by 85% when compared to CAIA mice. Taken together, treatment with IK delays the onset of the arthritis and alleviates the manifestations of arthritis in CAIA mice.
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Strait RT, Thornton S, Finkelman FD. Cγ1 Deficiency Exacerbates Collagen-Induced Arthritis. Arthritis Rheumatol 2017; 68:1780-7. [PMID: 26815845 DOI: 10.1002/art.39611] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Accepted: 01/21/2016] [Indexed: 01/05/2023]
Abstract
OBJECTIVE IgG antibodies protect by aggregating pathogens and activating complement and stimulatory Fcγ receptors (FcγR). Although IgG1 accounts for a large percentage of murine serum antibodies, it poorly activates complement, binds more avidly to inhibitory FcγRIIb than to stimulatory FcγRIII, and has a relatively low aggregating ability. We previously demonstrated that IgG1 protects against complement- and FcγR-independent renal disease by inhibiting immune complex obstruction of glomerular capillaries. The purpose of this study was to determine whether IgG1 also protects against the complement- and FcγR-dependent disorder, collagen-induced arthritis (CIA). METHODS CIA was induced by injecting mice with type II collagen (CII) (active model) or with IgG2a and IgG2b anti-CII monoclonal antibodies (ArthritoMab) (passive model). Arthritis severity was assessed, and CII-specific IgG was titered. RESULTS Cγ1-deficient C57BL/6 mice lack IgG1 (IgG1(-/-) ); in these mice, arthritis developed at a higher frequency and was more severe compared with IgG1(+/+) mice in the active model. Disease was FcγRIII- and C3-dependent in both the IgG(+/+) and IgG(-/-) mouse strains and was not influenced by interleukin-4 receptor α in either strain. CII-specific IgG2a/c titers were considerably higher in IgG1(-/-) than in IgG1(+/+) mice and correlated with CIA incidence and severity. IgG1(+/+) mice that developed CIA had higher CII-specific IgG1 and IgG2a/c levels than did those without CIA. CII-inoculated BALB/c IgG1(+/+) and IgG1(-/-) mice had much lower CII-specific IgG2a/c titers than did C57BL/6 mice and failed to develop CIA but developed passive CIA when given ArthritoMab. CONCLUSION The absence of a functional Cγ1 gene indirectly promotes the development of CIA, likely through increased production of IgG2a/c, an isotype that strongly activates complement and stimulatory FcγR.
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Affiliation(s)
- Richard T Strait
- Cincinnati Children's Hospital Medical Center and University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Sherry Thornton
- Cincinnati Children's Hospital Medical Center and University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Fred D Finkelman
- Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, and Cincinnati Veterans Affairs Medical Center, Cincinnati, Ohio
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Buprenorphine Alters Inflammatory and Oxidative Stress Molecular Markers in Arthritis. Mediators Inflamm 2017; 2017:2515408. [PMID: 28572711 PMCID: PMC5441125 DOI: 10.1155/2017/2515408] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Revised: 03/30/2017] [Accepted: 04/03/2017] [Indexed: 01/03/2023] Open
Abstract
Buprenorphine is recommended for use as an analgesic in animal models including in murine models of collagen-induced arthritis (CIA). However, the effect of buprenorphine on the expression of disease-associated biomarkers is not well defined. We examined the effect of buprenorphine administration on disease progression and the expression of inflammatory and oxidative stress markers, in a murine model of CIA. Buprenorphine administration altered the expression of cytokines, IFN-γ, IL-6, and MMP-3, and oxidative markers, for example, iNOS, superoxide dismutase (SOD1), and catalase (CAT), in the CIA mice. As buprenorphine is an analgesic, we further monitored the association of expression of these biomarkers with pain scores in a human cohort of early rheumatoid arthritis (RA). Serum MMP-3 levels and blood mRNA expression of antioxidants sod1 and cat correlated with pain scores in the RA cohort. We have demonstrated that administration of buprenorphine alters the expression of inflammatory and oxidative stress-related molecular markers in a murine model of CIA. This caveat needs to be considered in animal experiments using buprenorphine as an analgesic, as it can be a confounding factor in murine studies used for prediction of response to therapy. Furthermore, the antioxidant enzymes that showed an association with pain scores in the human cohort may be explored as biomarkers for pain in future studies.
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Yang Y, Hu X, Cheng L, Tang W, Zhao W, Yang Y, Zuo J. Periplocoside A ameliorated type II collagen-induced arthritis in mice via regulation of the balance of Th17/Treg cells. Int Immunopharmacol 2017; 44:43-52. [DOI: 10.1016/j.intimp.2016.12.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 12/01/2016] [Accepted: 12/08/2016] [Indexed: 01/23/2023]
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Mitra A, Kundu-Raychaudhuri S, Abria C, Rona A, Chaudhari AJ, Raychaudhuri SP. In-vivo quantitative assessment of the therapeutic response in a mouse model of collagen-induced arthritis using 18 F-fluorodeoxyglucose positron emission tomography. Clin Exp Immunol 2017; 188:293-298. [PMID: 28090641 DOI: 10.1111/cei.12926] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/09/2017] [Indexed: 12/01/2022] Open
Abstract
Mouse collagen-induced arthritis (CIA) is the most commonly used animal model to investigate underlying pathogenesis of autoimmune arthritis and to demonstrate the therapeutic efficacy of novel drugs in autoimmune arthritis. The conventional read-outs of CIA are clinical score and histopathology, which have several limitations, including (i) subjected to observer bias; and (ii) longitudinal therapeutic efficacy of a new drug cannot be determined. Thus, a robust, non-invasive, in-vivo drug screening tool is currently an unmet need. Here we have assessed the utility of 18 F-fluorodeoxyglucose positron emission tomography (18 F-FDG) as an in-vivo screening tool for anti-inflammatory drugs using the mouse CIA model. The radiotracer 18 F-FDG and a PET scanner were employed to monitor CIA disease activity before and after murine anti-tumour necrosis factor (TNF)-α antibody (CNTO5048) therapy in the mouse CIA model. Radiotracer concentration was derived from PET images for individual limb joints and on a per-limb basis, and Spearman's correlation coefficient (ρ) was determined with clinical score and histology of the affected limbs. CNTO5048 improved arthritis efficiently, as evidenced by clinical score and histopathology. PET showed an increased uptake of 18 F-FDG with the progression of the disease and a significant decrease in the post-treatment group. 18 F-FDG uptake patterns showed a strong correlation with clinical score (ρ = 0·71, P < 0·05) and histopathology (ρ = 0·76, P < 0·05). This study demonstrates the potential of 18 F-FDG PET as a tool for in-vivo drug screening for inflammatory arthritis and to monitor the therapeutic effects in a longitudinal setting.
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Affiliation(s)
- A Mitra
- Division of Dermatology, University of California Davis, School of Medicine, Sacramento, CA, USA
| | | | - C Abria
- Veterans Affairs Medical Center, Mather, CA, USA
| | - A Rona
- Veterans Affairs Medical Center, Mather, CA, USA
| | - A J Chaudhari
- Department of Radiology, University of California Davis, School of Medicine, Sacramento, CA, USA.,Center for Molecular and Genomic Imaging, University of California Davis, CA, USA
| | - S P Raychaudhuri
- Veterans Affairs Medical Center, Mather, CA, USA.,Division of Rheumatology, Allergy and Clinical Immunology, University of California Davis, School of Medicine, Davis, CA, USA
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Review on Toll-Like Receptor Activation in Myasthenia Gravis: Application to the Development of New Experimental Models. Clin Rev Allergy Immunol 2017; 52:133-147. [PMID: 27207173 DOI: 10.1007/s12016-016-8549-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Abnormal toll-like receptor (TLR) activation and uncontrolled resolution of inflammation are suspected to play a key role in the development of autoimmune diseases. Acquired myasthenia gravis (MG) is an invalidating neuromuscular disease leading to muscle weaknesses. MG is mainly mediated by anti-acetylcholine receptor (AChR) autoantibodies, and thymic hyperplasia characterized by ectopic germinal centers is a common feature in MG. An abnormal expression of certain TLRs is observed in the thymus of MG patients associated with the overexpression of interferon (IFN)-β, the orchestrator of thymic changes in MG. Experimental models have been developed for numerous autoimmune diseases. These models are induced by animal immunization with a purified antigen solubilized in complete Freund's adjuvant (CFA) containing heat-inactivated mycobacterium tuberculosis (MTB). Sensitization against the antigen is mainly due to the activation of TLR signaling pathways by the pathogen motifs displayed by MTB, and attempts have been made to substitute the use of CFA by TLR agonists. AChR emulsified in CFA is used to induce the classical experimental autoimmune MG model (EAMG). However, the TLR4 activator lipopolysaccharide (LPS) has proved to be efficient to replace MTB and induce a sensitization against purified AChR. Poly(I:C), the well-known TLR3 agonist, is also able by itself to induce MG symptoms in mice associated with early thymic changes as observed in human MG. In this review, we discuss the abnormal expression of TLRs in MG patients and we describe the use of TLR agonists to induce EAMG in comparison with other autoimmune experimental models.
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Lee JW, Lew JH, Kim TW, Kang H. Effect of an herbal mixture of Cinnamon Cortex, Persicae Semen, and Natril Sulfas on collagen-induced arthritis and lipopolysaccharides-induced nuclear factor-κ B signaling. Chin J Integr Med 2016:10.1007/s11655-016-2517-y. [PMID: 27896585 DOI: 10.1007/s11655-016-2517-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2012] [Indexed: 12/21/2022]
Abstract
OBJECTIVE To investigate the anti-arthritic and anti-inflammatory effects of the mixture of three herbal agents, Cinnamon Cortex, Persica Semen, and Natril Sulfas (CPN), the major ingredients of Taoren Chengqi Decoction (). METHODS Collagen-induced arthritis (CIA) was induced by immunization with bovine type II collagen on day 1 and 21. DBA/1J mice were orally administered the water extract of CPN (100 and 500 mg/kg) and indomethacin (1 mg/kg) or vehicle (water) 3 times per week for 6 weeks. Arthritic symptoms were recorded on day 29, 31, 33, 36 and 38. On sacrififi ce, serum was obtained for inflammatory markers and anti-collagen antibodies as well as arthritic joints were obtained for histologic analysis. For the evaluation of in vitro anti-inflammatory mechanism of CPN, peritoneal macrophages were isolated from thioglycollate injected C57BL/6 mice and stimulated with lipopolysaccharides (LPS) for 15 min in the presence of CPN extract. Levels of inhibitor of NF-κB α isoform (IκBα), phospho-p38, phospho-C-Jun N-terminal kinases (JNK) and phospho-extracellular signal-regulated kinase 1/2 (ERK1/2) were detected by Western blot. RESULTS Compared with mice in CIA group, oral administration of CPN signififi cantly reduced the clinical scores (P<0.05), histological analysis revealed the protective effect of CPN on inflamed joints. Serum levels of the pro-inflammatory markers tumor necrosis factor-α, interleukin-6 and prostaglandin E2, but not anti-collagen antibodies, were significantly reduced (P<0.05). CPN did not affect the activation of p38, JNK and ERK1/2 but inhibited LPS-induced IκBα degradation, a required event prior to the translocation of NF-κB to the nucleus. CONCLUSIONS The ameliorating effect of CPN on arthritis progression seems to be mediated by its anti-inflammatory effect, without affecting antibody response. As a supplementary agent, CPN could be benefifi cial for treatment of CIA.
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Affiliation(s)
- Ji-Won Lee
- Department of East-West Medicine, Graduate School of East-West Medical Science, Kyung Hee University, Yongin, 17104, Republic of Korea
| | - Jae-Hwan Lew
- Department of East-West Medicine, Graduate School of East-West Medical Science, Kyung Hee University, Yongin, 17104, Republic of Korea
| | - Tae-Woo Kim
- Department of East-West Medicine, Graduate School of East-West Medical Science, Kyung Hee University, Yongin, 17104, Republic of Korea
| | - Hee Kang
- Department of East-West Medicine, Graduate School of East-West Medical Science, Kyung Hee University, Yongin, 17104, Republic of Korea.
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Wang X, Li L, Wang J, Dong L, Shu Y, Liang Y, Shi L, Xu C, Zhou Y, Wang Y, Chen D, Mao C. Inhibition of cytokine response to TLR stimulation and alleviation of collagen-induced arthritis in mice by Schistosoma japonicum peptide SJMHE1. J Cell Mol Med 2016; 21:475-486. [PMID: 27677654 PMCID: PMC5323857 DOI: 10.1111/jcmm.12991] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Accepted: 08/18/2016] [Indexed: 12/28/2022] Open
Abstract
Helminth‐derived products have recently been shown to prevent the development of inflammatory diseases in mouse models. However, most identified immunomodulators from helminthes are mixtures or macromolecules with potentially immunogenic side effects. We previously identified an immunomodulatory peptide called SJMHE1 from the HSP60 protein of Schistosoma japonicum. In this study, we assessed the ability of SJMHE1 to affect murine splenocytes and human peripheral blood mononuclear cells (PBMCs) stimulated by toll‐like receptor (TLR) ligands in vitro and its treatment effect on mice with collagen‐induced arthritis (CIA). We show that SJMHE1 not only modulates the cytokine production of murine macrophage (MΦ) and dendritic cell but also affects cytokine production upon coculturing with allogeneic CD4+ T cell. SJMHE1 potently inhibits the cytokine response to TLR ligands lipopolysaccharide (LPS), CpG oligodeoxynucleotides (CpG) or resiquimod (R848) from mouse splenocytes, and human PBMCs stimulated by LPS. Furthermore, SJMHE1 suppressed clinical signs of CIA in mice and blocked joint erosion progression. This effect was mediated by downregulation of key cytokines involved in the pathogenesis of CIA, such as interferon‐γ (IFN‐γ), tumour necrosis factor‐α (TNF‐α), interleukin (IL)‐6, IL‐17, and IL‐22 and up‐regulation of the inhibitory cytokine IL‐10, Tgf‐β1 mRNA, and CD4+CD25+Foxp3+ Tregs. This study provides new evidence that the peptide from S. japonicum, which is the ‘safe’ selective generation of small molecule peptide that has evolved during host–parasite interactions, is of great value in the search for novel anti‐inflammatory agents and therapeutic targets for autoimmune diseases.
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Affiliation(s)
- Xuefeng Wang
- Department of Central Laboratory, The Affiliated Hospital of Jiangsu University, Zhenjiang, China.,Department of Nuclear Medicine and Institute of Oncology, The Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Li Li
- Department of Central Laboratory, The Affiliated Hospital of Jiangsu University, Zhenjiang, China.,Department of Nuclear Medicine and Institute of Oncology, The Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Jun Wang
- Department of Nuclear Medicine, The Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Liyang Dong
- Department of Central Laboratory, The Affiliated Hospital of Jiangsu University, Zhenjiang, China.,Department of Nuclear Medicine and Institute of Oncology, The Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Yang Shu
- Department of Central Laboratory, The Affiliated Hospital of Jiangsu University, Zhenjiang, China.,Department of Nuclear Medicine and Institute of Oncology, The Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Yong Liang
- Clinical Laboratory, Huai'an Hospital Affiliated of Xuzhou Medical College, Huaian, Jiangsu, China
| | - Liang Shi
- Department of Central Laboratory, The Affiliated Hospital of Jiangsu University, Zhenjiang, China.,Department of Nuclear Medicine and Institute of Oncology, The Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Chengcheng Xu
- Department of Central Laboratory, The Affiliated Hospital of Jiangsu University, Zhenjiang, China.,Department of Nuclear Medicine and Institute of Oncology, The Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Yuepeng Zhou
- Department of Central Laboratory, The Affiliated Hospital of Jiangsu University, Zhenjiang, China.,Department of Nuclear Medicine and Institute of Oncology, The Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Yi Wang
- Department of Central Laboratory, The Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Deyu Chen
- Department of Central Laboratory, The Affiliated Hospital of Jiangsu University, Zhenjiang, China.,Department of Nuclear Medicine and Institute of Oncology, The Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Chaoming Mao
- Department of Central Laboratory, The Affiliated Hospital of Jiangsu University, Zhenjiang, China.,Department of Nuclear Medicine and Institute of Oncology, The Affiliated Hospital of Jiangsu University, Zhenjiang, China
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Wang YL, Gao JM, Xing LZ. Therapeutic potential of Oroxylin A in rheumatoid arthritis. Int Immunopharmacol 2016; 40:294-299. [PMID: 27643663 DOI: 10.1016/j.intimp.2016.09.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 08/26/2016] [Accepted: 09/06/2016] [Indexed: 12/20/2022]
Abstract
Excessive inflammation contributes greatly to the pathogenesis and development of rheumatoid arthritis (RA). Oroxylin A (OA) is a natural anti-inflammatory flavonoid compound. In this study, we investigated the effects of OA on collagen-induced arthritis (CIA) and human RA fibroblast-like synoviocytes (FLS). CIA was induced in DBA/1 mice and mice were intraperitoneally treated with OA (10mg/kg) for 10days. Arthritis severity was evaluated every day and the histopathologic examination of joints was done. Serum levels of anti-collagen II antibodies (anti-CII Abs) and cytokines were determined by ELISA. Frequency of regulatory T cells (Tregs) and Th17 cells in draining inguinal lymph nodes (ILN) was quantified by flow cytometry. FLS from patients with active RA were treated with varying doses of oroxylin A, followed by stimulation with tumor necrosis factor (TNF)-α (10ng/mL). The production of cytokines was measured by ELISA. Signal transduction proteins were examined by western blot. OA significantly diminished the arthritis and histological damage. Serum anti-CII Abs, IL-1β, IL-6, TNFα, and IL-17 were significantly diminished by OA treatment. Analysis of CD4+T cell populations in OA-treated mice showed an increase in Tregs and reduction in Th17 cells in the ILN. In vitro, OA decreased the secretion of IL-1β and IL-6 from TNFα-stimulated RA FLS in a dose-dependent manner. TNFα-induced p38 MAPK, ERK1/2 and NF-κB signaling pathways were suppressed by OA. Our results indicate that OA exerts an anti-inflammatory activity and may have therapeutic potential for human RA.
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Affiliation(s)
- Yu-Ling Wang
- Department of Rheumatology and Immunology, Linyi People's Hospital, Linyi 276003, Shandong, China
| | - Ju-Mei Gao
- Department of Rheumatology and Immunology, Yishui Central Hospital, Linyi 276400, Shandong, China
| | - Li-Zhi Xing
- Department of Endocrinology, Linyi People's Hospital, Linyi 276003, Shandong, China.
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Apaer S, Tuxun T, Ma HZ, Zhang H, Aierken A, Aini A, Li YP, Lin RY, Wen H. Parasitic infection as a potential therapeutic tool against rheumatoid arthritis. Exp Ther Med 2016; 12:2359-2366. [PMID: 27698735 DOI: 10.3892/etm.2016.3660] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 07/15/2016] [Indexed: 12/11/2022] Open
Abstract
Parasites, which are a recently discovered yet ancient dweller in human hosts, remain a great public health burden in underdeveloped countries, despite preventative efforts. Rheumatoid arthritis is a predominantly cosmopolitan health problem with drastic morbidity rates, although encouraging progress has been achieved regarding treatment. However, although various types of methods and agents have been applied clinically, their broad usage has been limited by their adverse effects and/or high costs. Sustained efforts have been exerted on the 'hygiene hypothesis' since the 1870s. The immunosuppressive nature of parasitic infections may offer potential insight into therapeutic strategies for rheumatoid arthritis, in which the immune system is overactivated. An increasing number of published papers are focusing on the preventive and/or curative effect of various parasitic infection on rheumatoid arthritis from experimental studies to large-scale epidemiological studies and clinical trials. Therefore, the present review aimed to provide a general literature review on the possible beneficial role of parasitic infection on rheumatoid arthritis.
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Affiliation(s)
- Shadike Apaer
- State Key Laboratory of Xinjiang Major Diseases Research and Xinjiang Key Laboratory of Echinococcosis, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830054, P.R. China; Department of Liver and Laparoscopic Surgery, Digestive and Vascular Centre, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830054, P.R. China
| | - Tuerhongjiang Tuxun
- State Key Laboratory of Xinjiang Major Diseases Research and Xinjiang Key Laboratory of Echinococcosis, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830054, P.R. China; Department of Liver and Laparoscopic Surgery, Digestive and Vascular Centre, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830054, P.R. China
| | - Hai-Zhang Ma
- State Key Laboratory of Xinjiang Major Diseases Research and Xinjiang Key Laboratory of Echinococcosis, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830054, P.R. China
| | - Heng Zhang
- State Key Laboratory of Xinjiang Major Diseases Research and Xinjiang Key Laboratory of Echinococcosis, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830054, P.R. China
| | - Amina Aierken
- Department of Ultrasonography, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830054, P.R. China
| | - Abudusalamu Aini
- State Key Laboratory of Xinjiang Major Diseases Research and Xinjiang Key Laboratory of Echinococcosis, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830054, P.R. China
| | - Yu-Peng Li
- State Key Laboratory of Xinjiang Major Diseases Research and Xinjiang Key Laboratory of Echinococcosis, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830054, P.R. China
| | - Ren-Yong Lin
- State Key Laboratory of Xinjiang Major Diseases Research and Xinjiang Key Laboratory of Echinococcosis, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830054, P.R. China
| | - Hao Wen
- State Key Laboratory of Xinjiang Major Diseases Research and Xinjiang Key Laboratory of Echinococcosis, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830054, P.R. China; Department of Liver and Laparoscopic Surgery, Digestive and Vascular Centre, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830054, P.R. China
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Tabeian H, Bakker AD, de Vries TJ, Zandieh-Doulabi B, Lobbezoo F, Everts V. Juvenile porcine temporomandibular joint: Three different cartilaginous structures? Arch Oral Biol 2016; 72:211-218. [PMID: 27612163 DOI: 10.1016/j.archoralbio.2016.08.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 08/10/2016] [Accepted: 08/29/2016] [Indexed: 11/28/2022]
Abstract
OBJECTIVE The temporomandibular joint (TMJ) consists of three cartilaginous structures: the fossa, disc, and condyle. In juvenile idiopathic arthritis (JIA), inflammation of the TMJ leads to destruction of the condyle, but not of the fossa or the disc. Such a different effect of inflammation might be related to differences in matrix composition of the cartilaginous structures. METHODS The matrix composition of the three TMJ structures was analyzed in juvenile porcine samples and in an in vitro system of cells isolated from each anatomical structure embedded in 3% agarose gels. RESULTS The matrix of all three anatomical structures of the TMJ contained collagen type I and its gene expression was maintained after isolation. The condyle and the fossa stained positive for collagen type II and proteoglycans, but the condyle contained considerably more collagen type II and proteoglycans than the fossa. The disc contained neither collagen type II protein nor expression of its gene, and the disc did not stain positive for proteoglycans. Aggrecan gene expression was lower in the disc compared to condyle and fossa cell-isolates. In general, the cell-isolates in vitro closely mimicked the characteristic features found in the tissue. CONCLUSION The collagen type II content of the condyle clearly distinguished this cartilaginous structure from the disc and fossa. Since autoimmunity against collagen type II is associated with JIA, the relatively abundant presence of this type of collagen in the condyle might provide an explanation why primarily this cartilaginous structure of the TMJ is affected in JIA patients.
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Affiliation(s)
- Hessam Tabeian
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and VU University Amsterdam, MOVE Research Institute Amsterdam, Amsterdam, The Netherlands
| | - Astrid D Bakker
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and VU University Amsterdam, MOVE Research Institute Amsterdam, Amsterdam, The Netherlands
| | - Teun J de Vries
- Department of Periodontology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and VU University Amsterdam, MOVE Research Institute Amsterdam, Amsterdam, The Netherlands.
| | - Behrouz Zandieh-Doulabi
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and VU University Amsterdam, MOVE Research Institute Amsterdam, Amsterdam, The Netherlands
| | - Frank Lobbezoo
- Department of Oral Kinesiology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and VU University Amsterdam, MOVE Research Institute Amsterdam, Amsterdam, The Netherlands
| | - Vincent Everts
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and VU University Amsterdam, MOVE Research Institute Amsterdam, Amsterdam, The Netherlands
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Wang XQ, Liu Y, Cai HH, Peng YP, Qiu YH. Expression of tyrosine hydroxylase in CD4 + T cells contributes to alleviation of Th17/Treg imbalance in collagen-induced arthritis. Exp Biol Med (Maywood) 2016; 241:2094-2103. [PMID: 27444150 DOI: 10.1177/1535370216660635] [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] [Indexed: 12/12/2022] Open
Abstract
Tyrosine hydroxylase (TH), a rate-limiting enzyme for the synthesis of catecholamines, is expressed in T lymphocytes. However, the role of T cell-expressed TH in rheumatoid arthritis (RA) is less clear. Herein, we aimed to show the contribution of TH expression by CD4+ T cells to alleviation of helper T (Th)17/regulatory T (Treg) imbalance in collagen-induced arthritis (CIA), a mouse model of RA. CIA was prepared by intradermal injection of collagen type II (CII) at tail base of DBA1/J mice. Expression of TH in the spleen and the ankle joints was measured by real-time polymerase chain reaction and Western blot analysis. Percentages of TH-expressing Th17 and Treg cells in splenic CD4+ T cells were determined by flow cytometry. Overexpression and knockdown of TH gene in CD4+ T cells were taken to evaluate effects of TH on Th17 and Treg cells in CIA. TH expression was upregulated in both the inflamed tissues (spleen and ankle joints) and the CD4+ T cells of CIA mice. In splenic CD4+ T cells, the cells expressing TH were increased during CIA. These cells that expressed more TH in CIA were mainly Th17 cells rather than Treg cells. TH gene overexpression in CD4+ T cells from CIA mice reduced Th17 cell percentage as well as Th17-related transcription factor and cytokine expression and secretion, whereas TH gene knockdown enhanced the Th17 cell activity. In contrast, TH gene overexpression increased Treg-related cytokine expression and secretion in CD4+ T cells of CIA mice, while TH gene knockdown decreased the Treg cell changes. Collectively, these findings show that CIA induces TH expression in CD4+ T cells, particularly in Th17 cells, and suggest that the increased TH expression during CIA represents an anti-inflammatory mechanism.
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Affiliation(s)
- Xiao-Qin Wang
- 1 School of Biological & Basic Medical Sciences, Soochow University, Suzhou 215123, China.,2 Department of Physiology, School of Medicine, and Co-innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
| | - Yan Liu
- 2 Department of Physiology, School of Medicine, and Co-innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
| | - Huan-Huan Cai
- 2 Department of Physiology, School of Medicine, and Co-innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
| | - Yu-Ping Peng
- 2 Department of Physiology, School of Medicine, and Co-innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
| | - Yi-Hua Qiu
- 2 Department of Physiology, School of Medicine, and Co-innovation Center of Neuroregeneration, Nantong University, Nantong 226001, China
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Jung HW, Kim KH, Park YK. Inhibitory effect of the extract of Phellodendron amurense ruprecht root on collagen-induced arthritis in mice. Chin J Integr Med 2016; 23:755-762. [PMID: 27460490 DOI: 10.1007/s11655-016-2094-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2013] [Indexed: 01/08/2023]
Abstract
OBJECTIVE To investigate whether the dried root of Phellodendron amurense Ruprecht (Phellodendri cortex; PC) extract improves arthritic symptoms through anti-inflammatory and immune-modulatory effects in collagen-induced arthritis in mice. METHODS Rheumatoid arthritis (RA) was induced in male DBA/1 mice by immunization with type II collagen (ColII). CIA mice were divided into 5 groups (n=10 per a group) with normal, CIA control, PC extract (50 mg/kg and 100 mg/kg)-treated, and meloxicam (50 mg/kg)-treated as the reference drug. The PC extract or meloxicam were administered orally in CIA mice once a day for 14 days after arthritis induction. Arthritic score, levels of anti-ColII IgG2a antibody, prostaglandin E2 (PGE2), tumor necrosis factor (TNF)-α, and interleukin (IL)-17 in the sera of CIA mice were measured. Histopathological changes in the ankle joints of CIA mice were also analyzed by staining with hematoxylin and eosin (H and E), safranin-O and immunohistochemistry using anti-TNF-α and anti-IL-17 antibodies. RESULTS The arthritic score was increased in CIA mice in a time-dependent manner, as were the serum levels of anti-ColII IgG2a antibody, PGE2, TNF-α, and IL-17. However, the oral administration of PC extract at 50 and 100 mg/kg in CIA mice significantly decreased the arthritic scores, and the serum levels of anti-ColII IgG2a, PGE2, TNF-α, and IL-17 compared with those in the CIA group (P<0.05 or P<0.01). Furthermore, histopathological improvement of the joint architecture in CIA mice was observed after administration of PC extract. PC extract also significantly inhibited the expression of TNF-α and IL-17 in the joints of CIA mice by suppressing the expression of their mRNA and proteins. CONCLUSION PC extract may improve the pathological progression of RA through the inhibition of joint destruction by synovial inflammation and immune-stimulation, therefore, it would be a potential anti-arthritic agent in RA.
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Affiliation(s)
- Hyo Won Jung
- Department of Herbology, College of Korean Medicine, Dongguk University, Gyeongju, 740-814, Republic of Korea.
- Korean Medicine Research and Development Center, Dongguk University, Gyeongju, 740-814, Republic of Korea.
| | - Kyung-Ho Kim
- Department of Acupuncture, College of Korean Medicine, Dongguk University, Gyeongju, 740-814, Republic of Korea
| | - Yong-Ki Park
- Department of Herbology, College of Korean Medicine, Dongguk University, Gyeongju, 740-814, Republic of Korea
- Korean Medicine Research and Development Center, Dongguk University, Gyeongju, 740-814, Republic of Korea
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Chukkapalli S, Rivera-Kweh M, Gehlot P, Velsko I, Bhattacharyya I, Calise SJ, Satoh M, Chan EKL, Holoshitz J, Kesavalu L. Periodontal bacterial colonization in synovial tissues exacerbates collagen-induced arthritis in B10.RIII mice. Arthritis Res Ther 2016; 18:161. [PMID: 27405639 PMCID: PMC4942913 DOI: 10.1186/s13075-016-1056-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Accepted: 06/21/2016] [Indexed: 12/23/2022] Open
Abstract
Background It has been previously hypothesized that oral microbes may be an etiological link between rheumatoid arthritis (RA) and periodontal disease. However, the mechanistic basis of this association is incompletely understood. Here, we investigated the role of periodontal bacteria in induction of joint inflammation in collagen-induced arthritis (CIA) in B10.RIII mice. Methods CIA-prone B10.RIII mice were infected orally with a polybacterial mixture of Porphyromonas gingivalis, Treponema denticola, and Tannerella forsythia for 24 weeks before induction of CIA. The ability of polybacterial mixture to colonize the periodontium and induce systemic response, horizontal alveolar bone resorption in infected B10.RIII mice was investigated. Arthritis incidence, severity of joint inflammation, pannus formation, skeletal damage, hematogenous dissemination of the infection, matrix metalloproteinase 3 (MMP3) levels, and interleukin-17 expression levels were evaluated. Results B10.RIII mice had gingival colonization with all three bacteria, higher levels of anti-bacterial immunoglobulin G (IgG) and immunoglobulin M (IgM) antibodies, significant alveolar bone resorption, and hematogenous dissemination of P. gingivalis to synovial joints. Infected B10.RIII mice had more severe arthritis, and higher serum matrix metalloproteinase 3 levels and activity. Histopathological analysis showed increased inflammatory cell infiltration, destruction of articular cartilage, erosions, and pannus formation. Additionally, involved joints showed had expression levels of interleukin-17. Conclusion These findings demonstrate that physical presence of periodontal bacteria in synovial joints of B10.RIII mice with collagen-induced arthritis is associated with arthritis exacerbation, and support the hypothesis that oral bacteria, specifically P. gingivalis, play a significant role in augmenting autoimmune arthritis due to their intravascular dissemination to the joints. Electronic supplementary material The online version of this article (doi:10.1186/s13075-016-1056-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Sasanka Chukkapalli
- Department of Periodontology and Oral Biology, College of Dentistry, University of Florida Gainesville, Gainesville, FL, 32610, USA
| | - Mercedes Rivera-Kweh
- Department of Periodontology and Oral Biology, College of Dentistry, University of Florida Gainesville, Gainesville, FL, 32610, USA
| | - Prashasnika Gehlot
- Department of Internal Medicine, University of Michigan School of Medicine, Ann Arbor, Michigan, USA
| | - Irina Velsko
- Department of Periodontology and Oral Biology, College of Dentistry, University of Florida Gainesville, Gainesville, FL, 32610, USA
| | - Indraneel Bhattacharyya
- Department of Oral & Maxillofacial Diagnostic Sciences, College of Dentistry, University of Florida, Gainesville, Florida, USA
| | - S John Calise
- Departments of Oral Biology, College of Dentistry, University of Florida, Gainesville, Florida, USA
| | - Minoru Satoh
- Division of Rheumatology and Clinical Immunology, College of Medicine, University of Florida, Gainesville, Florida, USA.,Department of Clinical Nursing, University of Occupational and Environmental Health, Kitakyushu, Fukuoka, Japan
| | - Edward K L Chan
- Departments of Oral Biology, College of Dentistry, University of Florida, Gainesville, Florida, USA
| | - Joseph Holoshitz
- Department of Internal Medicine, University of Michigan School of Medicine, Ann Arbor, Michigan, USA
| | - Lakshmyya Kesavalu
- Department of Periodontology and Oral Biology, College of Dentistry, University of Florida Gainesville, Gainesville, FL, 32610, USA. .,Departments of Oral Biology, College of Dentistry, University of Florida, Gainesville, Florida, USA.
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Hartmann K, Koenen M, Schauer S, Wittig-Blaich S, Ahmad M, Baschant U, Tuckermann JP. Molecular Actions of Glucocorticoids in Cartilage and Bone During Health, Disease, and Steroid Therapy. Physiol Rev 2016; 96:409-47. [PMID: 26842265 DOI: 10.1152/physrev.00011.2015] [Citation(s) in RCA: 141] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Cartilage and bone are severely affected by glucocorticoids (GCs), steroid hormones that are frequently used to treat inflammatory diseases. Major complications associated with long-term steroid therapy include impairment of cartilaginous bone growth and GC-induced osteoporosis. Particularly in arthritis, GC application can increase joint and bone damage. Contrarily, endogenous GC release supports cartilage and bone integrity. In the last decade, substantial progress in the understanding of the molecular mechanisms of GC action has been gained through genome-wide binding studies of the GC receptor. These genomic approaches have revolutionized our understanding of gene regulation by ligand-induced transcription factors in general. Furthermore, specific inactivation of GC signaling and the GC receptor in bone and cartilage cells of rodent models has enabled the cell-specific effects of GCs in normal tissue homeostasis, inflammatory bone diseases, and GC-induced osteoporosis to be dissected. In this review, we summarize the current view of GC action in cartilage and bone. We further discuss future research directions in the context of new concepts for optimized steroid therapies with less detrimental effects on bone.
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Affiliation(s)
- Kerstin Hartmann
- Institute for Comparative Molecular Endocrinology, University of Ulm, Ulm, Germany; and Division of Endocrinology, Diabetes, and Bone Diseases, Department of Medicine III, Technische Universität Dresden, Dresden, Germany
| | - Mascha Koenen
- Institute for Comparative Molecular Endocrinology, University of Ulm, Ulm, Germany; and Division of Endocrinology, Diabetes, and Bone Diseases, Department of Medicine III, Technische Universität Dresden, Dresden, Germany
| | - Sebastian Schauer
- Institute for Comparative Molecular Endocrinology, University of Ulm, Ulm, Germany; and Division of Endocrinology, Diabetes, and Bone Diseases, Department of Medicine III, Technische Universität Dresden, Dresden, Germany
| | - Stephanie Wittig-Blaich
- Institute for Comparative Molecular Endocrinology, University of Ulm, Ulm, Germany; and Division of Endocrinology, Diabetes, and Bone Diseases, Department of Medicine III, Technische Universität Dresden, Dresden, Germany
| | - Mubashir Ahmad
- Institute for Comparative Molecular Endocrinology, University of Ulm, Ulm, Germany; and Division of Endocrinology, Diabetes, and Bone Diseases, Department of Medicine III, Technische Universität Dresden, Dresden, Germany
| | - Ulrike Baschant
- Institute for Comparative Molecular Endocrinology, University of Ulm, Ulm, Germany; and Division of Endocrinology, Diabetes, and Bone Diseases, Department of Medicine III, Technische Universität Dresden, Dresden, Germany
| | - Jan P Tuckermann
- Institute for Comparative Molecular Endocrinology, University of Ulm, Ulm, Germany; and Division of Endocrinology, Diabetes, and Bone Diseases, Department of Medicine III, Technische Universität Dresden, Dresden, Germany
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Head-to-head comparison of protocol modifications for the generation of collagen-induced arthritis in a specific-pathogen free facility using DBA/1 mice. Biotechniques 2016; 60:119-28. [PMID: 26956089 DOI: 10.2144/000114388] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 12/16/2015] [Indexed: 11/23/2022] Open
Abstract
Collagen-induced arthritis (CIA) is a widely used mouse model for studying inflammatory arthritis (IA). However, CIA induction protocols differ between laboratories, and direct comparison between protocol variations has not been reported. To address this issue, DBA/1 mice housed in conventional and specific-pathogen free (SPF) facilities were administered various combinations of two doses of collagen type II (CII) in complete (CFA) or incomplete Freund's adjuvant (IFA); some mice were also injected with lipopolysaccharide (LPS) and/or additional CII at specific intervals. Mice were evaluated for IA over the subsequent 2 months. Depending directly on the combination of CII, CFA, IFA, and LPS used, the incidence of IA ranged between 20%-100%, and severity extended from mild to severe even in an SPF environment. Our results demonstrate for the first time in head-to-head comparisons that specific variations in the use of CII, CFA, IFA, and LPS can induce a range of arthritic disease intensity and severity in an SPF facility. Thus, distinct experimental settings can be designed for robust assessment of factors that either exacerbate or inhibit arthritis pathogenesis. Furthermore, by achieving 100% incidence in an SPF facility, the protocols provide a practical and humane benefit by reducing the number of mice necessary for experimental assessment.
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Yuan X, Tong B, Dou Y, Wu X, Wei Z, Dai Y. Tetrandrine ameliorates collagen-induced arthritis in mice by restoring the balance between Th17 and Treg cells via the aryl hydrocarbon receptor. Biochem Pharmacol 2016; 101:87-99. [DOI: 10.1016/j.bcp.2015.11.025] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Accepted: 11/24/2015] [Indexed: 10/22/2022]
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Lü S, Wang Q, Li G, Sun S, Guo Y, Kuang H. The treatment of rheumatoid arthritis using Chinese medicinal plants: From pharmacology to potential molecular mechanisms. JOURNAL OF ETHNOPHARMACOLOGY 2015; 176:177-206. [PMID: 26471289 DOI: 10.1016/j.jep.2015.10.010] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Revised: 10/02/2015] [Accepted: 10/03/2015] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Rheumatoid arthritis (RA) is a common worldwide public health problem. Traditional Chinese Medicine (TCM) achieved some results to some extent in the treatment of rheumatoid arthritis (RA). Especially in China, TCM formulas are used in the clinic because of their advantages. Some of these TCM formulas have been used for thousands of years in ancient China, they pays much attention to strengthening healthy qi, cleaning heat, and wet, activating blood, etc. So TCM in anti-RA drug is considered as a simple and effective method. In addition, TCM are also traditionally used as extracts and many Chinese herbs which are considered to be effective for RA. With the advancement of technologies and research methods, researchers have devoted themselves to exploring new therapeutic materials from troves of TCM. The components of TCM are identified and purified, which include alkaloids, coumarins, flavonoids, saponins and so on. However, little or no review works are found in the research literature on the anti-RA drugs from TCM. The present review aims to provide systematically reorganized information on the ethnopharmacology, phytochemistry and pharmacology of TCM used traditionally against RA. The information recorded in this review will provide new directions for researchers in the future. MATERIALS AND METHODS Relevant scientific literatures were collected from Chinese traditional books and Chinese Pharmacopoeia. Several important pharmacology data, clinical observations, animal experiments on effects of anti-RA drugs from TCM and their mechanisms were extracted from a library and electric search (Pubmed, PubChem Compound, Science Direct, Spring Link, Elsevier, Web of Science, CNKI, Wan Fang, Bai du, The Plant List, etc.). We collected information published between 2002 and 2015 on Chinese medicine in the treatment of RA. Information was also acquired from local classic herbal literature, conference papers, government reports, and PhD and MSc dissertations. RESULTS This review mainly introduces the current research on anti-RA TCM formulas, extracts and compounds from TCM, pharmacological data and potential mechanisms (inhibit osteoclast proliferation, suppress fibroblast-like synoviocytes (FLSs) growth, decrease the expression of inflammatory cytokines, blocking signal pathways, etc.). CONCLUSIONS TCM, as a multi-component and multi-target approach, which is a perfect match with the holistic concept of systems biology, is applicable in the treatment of RA. The synergistic connections of Chinese herbs and mechanisms of related active compounds on RA increase the trust for TCM. TCM as alternative remedies for RA not only has an important position in the world market, but also has an irreplaceable role in the treatment of RA in future.
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Affiliation(s)
- Shaowa Lü
- Key Laboratory of Ministry of Education, Department of Pharmacology, Heilongjiang University of Chinese Medicine, Harbin 150040, China.
| | - Qiushi Wang
- Key Laboratory of Ministry of Education, Department of Pharmacology, Heilongjiang University of Chinese Medicine, Harbin 150040, China.
| | - Guoyu Li
- College of Pharmacy, Harbin Medical University, Harbin 150040, China
| | - Shuang Sun
- Key Laboratory of Ministry of Education, Department of Pharmacology, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Yuyan Guo
- Key Laboratory of Ministry of Education, Department of Pharmacology, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Haixue Kuang
- Key Laboratory of Ministry of Education, Department of Pharmacology, Heilongjiang University of Chinese Medicine, Harbin 150040, China.
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Endo T, Ito K, Morimoto J, Kanayama M, Ota D, Ikesue M, Kon S, Takahashi D, Onodera T, Iwasaki N, Uede T. Syndecan 4 Regulation of the Development of Autoimmune Arthritis in Mice by Modulating B Cell Migration and Germinal Center Formation. Arthritis Rheumatol 2015; 67:2512-22. [PMID: 25989265 DOI: 10.1002/art.39193] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2014] [Accepted: 05/07/2015] [Indexed: 12/27/2022]
Abstract
OBJECTIVE Syndecan 4 has been implicated as a critical mediator of inflammatory responses because of its functions as a coreceptor and reservoir for growth factors and chemokines. Although syndecan 4 is known to be expressed on B cells, its role in immune responses remains unclear. The purpose of this study was to investigate the contribution of syndecan 4 to the development of immune arthritis in murine models. METHODS The clinical severity of 3 immunopathologically distinct models, collagen-induced arthritis (CIA), antigen-induced arthritis (AIA), and collagen antibody-induced arthritis (CAIA), was evaluated in wild-type (WT) mice and in syndecan 4-deficient (Sdc4(-/-) ) mice. Germinal center (GC) formation, B cell profiles, humoral immune responses, and B cell migration were analyzed during the course of CIA. RESULTS Sdc4(-/-) mice were resistant to the induction of CIA, which is T cell and B cell dependent, but AIA and CAIA, which are T cell dependent and T cell independent, respectively, occurred with equal frequency in WT mice and Sdc4(-/-) mice. Furthermore, Sdc4(-/-) mice had reduced numbers of B cells and deficient GC formation in draining lymph nodes (DLNs) during the course of CIA, resulting in reduced production of collagen-specific autoantibodies. Compared with B cells from WT mice, B cells from Sdc4(-/-) mice showed reduced chemotactic migration toward stromal cell-derived factor 1 (SDF-1) and reduced SDF-1-mediated Akt phosphorylation. Consistent with these findings, in vivo transfer experiments showed that fewer Sdc4(-/-) B cells than WT B cells were found in and around the follicles in the DLNs. CONCLUSION Our findings suggest that syndecan 4 contributes to the development of CIA by promoting GC formation and autoantibody production through its regulation of SDF-1-mediated B cell migration.
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Affiliation(s)
- Tsutomu Endo
- Institute for Genetic Medicine and Hokkaido University, Graduate School of Medicine, Sapporo, Japan
| | - Koyu Ito
- Institute for Genetic Medicine and Hokkaido University, Sapporo, Japan
| | - Junko Morimoto
- Institute for Genetic Medicine and Hokkaido University, Sapporo, Japan
| | - Masashi Kanayama
- Institute for Genetic Medicine and Hokkaido University, Sapporo, Japan
| | - Daichi Ota
- Institute for Genetic Medicine and Hokkaido University, Sapporo, Japan
| | - Masahiro Ikesue
- Institute for Genetic Medicine and Hokkaido University, Sapporo, Japan
| | - Shigeyuki Kon
- Hokkaido University, Graduate School of Pharmaceutical Sciences, Sapporo, Japan
| | | | - Tomohiro Onodera
- Hokkaido University, Graduate School of Medicine, Sapporo, Japan
| | - Norimasa Iwasaki
- Hokkaido University, Graduate School of Medicine, Sapporo, Japan
| | - Toshimitsu Uede
- Institute for Genetic Medicine and Hokkaido University, Sapporo, Japan
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73
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Choi JK, Kim SW, Kim DS, Lee JY, Lee S, Oh HM, Ha YS, Yoo J, Park PH, Shin TY, Kwon TK, Rho MC, Kim SH. Oleanolic acid acetate inhibits rheumatoid arthritis by modulating T cell immune responses and matrix-degrading enzymes. Toxicol Appl Pharmacol 2015; 290:1-9. [PMID: 26570984 DOI: 10.1016/j.taap.2015.11.005] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2015] [Revised: 11/04/2015] [Accepted: 11/08/2015] [Indexed: 12/13/2022]
Abstract
Rheumatoid arthritis (RA) is a chronic autoimmune disease associated with a combination of synovium joint inflammation, synovium hyperplasia, and destruction of cartilage and bone. Oleanolic acid acetate (OAA), a compound isolated from Vigna angularis, has been known to possess pharmacological activities, including anti-inflammation and anti-bone destruction. In this study, we investigated the effects of OAA on RA and the underlying mechanisms of action by using a type-II collagen-induced arthritis (CIA) mouse model and tumor necrosis factor (TNF)-α-stimulated RA synovial fibroblasts. Oral administration of OAA decreased the clinical arthritis symptoms, paw thickness, histologic and radiologic changes, and serum total and anti-type II collagen IgG, IgG1, and IgG2a levels. OAA administration reduced Th1/Th17 phenotype CD4(+) T lymphocyte expansions and inflammatory cytokine productions in T cell activated draining lymph nodes and spleen. OAA reduced the expression and production of inflammatory mediators, such as cytokines and matrix metalloproteinase (MMP)-1/3, in the ankle joint tissue and RA synovial fibroblasts by down-regulating Akt, mitogen-activated protein kinases, and nuclear factor-κB. Our results clearly support that OAA plays a therapeutic role in RA pathogenesis by modulating helper T cell immune responses and matrix-degrading enzymes. The immunosuppressive effects of OAA were comparable to dexamethasone and ketoprofen. We provide evidences that OAA could be a potential therapeutic candidate for RA.
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Affiliation(s)
- Jin Kyeong Choi
- Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu 700-422, Republic of Korea; Molecular Immunology Section, Laboratory of Immunology, National Eye Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Sung-Wan Kim
- Department of Thoracic and Cardiovascular Surgery, CHA Gumi Medical Center, CHA University, Gumi 730-040, Republic of Korea
| | - Duk-Sil Kim
- Department of Thoracic and Cardiovascular Surgery, CHA Gumi Medical Center, CHA University, Gumi 730-040, Republic of Korea
| | - Jong Yeong Lee
- Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu 700-422, Republic of Korea
| | - Soyoung Lee
- Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu 700-422, Republic of Korea; Bio-Materials Research Institute, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 580-185, Republic of Korea
| | - Hyun-Mee Oh
- Bio-Materials Research Institute, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 580-185, Republic of Korea
| | - Yeong Su Ha
- Department of Molecular Medicine, School of Medicine, Kyungpook National University, Daegu 700-422, Republic of Korea
| | - Jeongsoo Yoo
- Department of Molecular Medicine, School of Medicine, Kyungpook National University, Daegu 700-422, Republic of Korea
| | - Pil-Hoon Park
- College of Pharmacy, Yeungnam University, Gyeongbuk 712-749, Republic of Korea
| | - Tae-Yong Shin
- College of Pharmacy, Woosuk University, Jeonju 565-701, Republic of Korea
| | - Taeg Kyu Kwon
- Department of Immunology, School of Medicine, Keimyung University, Daegu 704-701, Republic of Korea
| | - Mun-Chual Rho
- Bio-Materials Research Institute, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 580-185, Republic of Korea.
| | - Sang-Hyun Kim
- Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu 700-422, Republic of Korea.
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74
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Garimella MG, Kour S, Piprode V, Mittal M, Kumar A, Rani L, Pote ST, Mishra GC, Chattopadhyay N, Wani MR. Adipose-Derived Mesenchymal Stem Cells Prevent Systemic Bone Loss in Collagen-Induced Arthritis. THE JOURNAL OF IMMUNOLOGY 2015; 195:5136-48. [PMID: 26538398 DOI: 10.4049/jimmunol.1500332] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 09/30/2015] [Indexed: 12/25/2022]
Abstract
Rheumatoid arthritis (RA) is an autoimmune disease characterized by chronic inflammatory synovitis leading to joint destruction and systemic bone loss. The inflammation-induced bone loss is mediated by increased osteoclast formation and function. Current antirheumatic therapies primarily target suppression of inflammatory cascade with limited or no success in controlling progression of bone destruction. Mesenchymal stem cells (MSCs) by virtue of their tissue repair and immunomodulatory properties have shown promising results in various autoimmune and degenerative diseases. However, the role of MSCs in prevention of bone destruction in RA is not yet understood. In this study, we investigated the effect of adipose-derived MSCs (ASCs) on in vitro formation of bone-resorbing osteoclasts and pathological bone loss in the mouse collagen-induced arthritis (CIA) model of RA. We observed that ASCs significantly inhibited receptor activator of NF-κB ligand (RANKL)-induced osteoclastogenesis in both a contact-dependent and -independent manner. Additionally, ASCs inhibited RANKL-induced osteoclastogenesis in the presence of proinflammatory cytokines such as TNF-α, IL-17, and IL-1β. Furthermore, treatment with ASCs at the onset of CIA significantly reduced clinical symptoms and joint pathology. Interestingly, ASCs protected periarticular and systemic bone loss in CIA mice by maintaining trabecular bone structure. We further observed that treatment with ASCs reduced osteoclast precursors in bone marrow, resulting in decreased osteoclastogenesis. Moreover, ASCs suppressed autoimmune T cell responses and increased the percentages of peripheral regulatory T and B cells. Thus, we provide strong evidence that ASCs ameliorate inflammation-induced systemic bone loss in CIA mice by reducing osteoclast precursors and promoting immune tolerance.
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Affiliation(s)
| | - Supinder Kour
- National Centre for Cell Science, Ganeshkhind, Pune 411 007, India; and
| | - Vikrant Piprode
- National Centre for Cell Science, Ganeshkhind, Pune 411 007, India; and
| | - Monika Mittal
- Division of Endocrinology, Council of Scientific and Industrial Research-Central Drug Research Institute, Lucknow 226 031, India
| | - Anil Kumar
- National Centre for Cell Science, Ganeshkhind, Pune 411 007, India; and
| | - Lekha Rani
- National Centre for Cell Science, Ganeshkhind, Pune 411 007, India; and
| | - Satish T Pote
- National Centre for Cell Science, Ganeshkhind, Pune 411 007, India; and
| | - Gyan C Mishra
- National Centre for Cell Science, Ganeshkhind, Pune 411 007, India; and
| | - Naibedya Chattopadhyay
- Division of Endocrinology, Council of Scientific and Industrial Research-Central Drug Research Institute, Lucknow 226 031, India
| | - Mohan R Wani
- National Centre for Cell Science, Ganeshkhind, Pune 411 007, India; and
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75
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Guillou C, Derambure C, Fréret M, Verdet M, Avenel G, Golinski ML, Sabourin JC, Loarer FL, Adriouch S, Boyer O, Lequerré T, Vittecoq O. Prophylactic Injection of Recombinant Alpha-Enolase Reduces Arthritis Severity in the Collagen-Induced Arthritis Mice Model. PLoS One 2015; 10:e0136359. [PMID: 26302382 PMCID: PMC4547710 DOI: 10.1371/journal.pone.0136359] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Accepted: 07/31/2015] [Indexed: 01/13/2023] Open
Abstract
Objective To evaluate the ability of the glycolytic enzyme alpha-enolase (ENO1) or its immunodominant peptide (pEP1) to reduce the severity of CIA in DBA/1 mice when injected in a prophylactic way. Methods Mice were treated with mouse ENO1 or pEP1 one day prior to collagen II immunization. Clinical assessment was evaluated using 4 parameters (global and articular scores, ankle thickness and weight). Titers of serum anti-ENO1, anti-cyclic citrullinated peptides (anti-CCP) and anti-CII (total IgG and IgG1/IgG2a isotypes) antibodies were measured by ELISA at different time-points. Disease activity was assessed by histological analysis of both anterior and hind paws at the end of experimentation. Results Prophylactic injection of 100 μg of ENO1 reduced severity of CIA. Serum levels of anti-CII antibodies were reduced in ENO1-treated mice. Concordantly, ENO1-treated mice joints presented less severe histological signs of arthritis. ENO1 did not induce a shift toward a Th2 response since IgG1/IgG2a ratio of anti-CII antibodies remained unchanged and IL-4 serum levels were similar to those measured in the control group. Conclusions Pre-immunization with ENO1 or its immunodominant peptide pEP1 reduces CIA severity at the clinical, immunological and histological levels. Effects of pEP1 were less pronounced. This immunomodulatory effect is associated with a reduction in anti-CII antibodies production but is not due to a Th1/Th2 shift.
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Affiliation(s)
- Clément Guillou
- INSERM, U905, Rouen, France
- Normandy University, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France
| | - Céline Derambure
- INSERM, U905, Rouen, France
- Normandy University, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France
| | - Manuel Fréret
- INSERM, U905, Rouen, France
- Normandy University, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France
| | - Mathieu Verdet
- Rouen University Hospital, Department of Rheumatology, Rouen, France
| | - Gilles Avenel
- Rouen University Hospital, Department of Rheumatology, Rouen, France
| | - Marie-Laure Golinski
- INSERM, U905, Rouen, France
- Normandy University, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France
| | - Jean-Christophe Sabourin
- Normandy University, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France
- Rouen University Hospital, Department of Pathology, Rouen, France
| | | | - Sahil Adriouch
- INSERM, U905, Rouen, France
- Normandy University, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France
| | - Olivier Boyer
- INSERM, U905, Rouen, France
- Normandy University, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France
- Rouen University Hospital, Department of Immunology, Rouen, France
| | - Thierry Lequerré
- INSERM, U905, Rouen, France
- Normandy University, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France
- Rouen University Hospital, Department of Rheumatology, Rouen, France
| | - Olivier Vittecoq
- INSERM, U905, Rouen, France
- Normandy University, Institute for Research and Innovation in Biomedicine (IRIB), Rouen, France
- Rouen University Hospital, Department of Rheumatology, Rouen, France
- * E-mail:
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76
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Schubert N, Dudeck J, Liu P, Karutz A, Speier S, Maurer M, Tuckermann J, Dudeck A. Mast cell promotion of T cell-driven antigen-induced arthritis despite being dispensable for antibody-induced arthritis in which T cells are bypassed. Arthritis Rheumatol 2015; 67:903-13. [PMID: 25510234 DOI: 10.1002/art.38996] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Accepted: 12/09/2014] [Indexed: 12/19/2022]
Abstract
OBJECTIVE The function of mast cells (MCs) in autoimmune disorders has been a subject of controversy recently. MC-deficient Kit(W/W-v) mice were found to be resistant to K/BxN serum-transfer arthritis, whereas Kit(W-sh/W-sh) mice and a genetic model of MC deficiency independent of the Kit mutation were found to be fully susceptible. This debate might lead to the assumption that MCs are dispensable in autoimmunity in general. Thus, the purpose of this study was to examine the relevance of MCs to arthritis using a genetic model of inducible MC deficiency without compromised Kit signaling. METHODS We compared MC functions in K/BxN serum-induced arthritis and in collagen-induced arthritis (CIA) in a mouse model of inducible MC deficiency by analyzing joint inflammation, parameters of cartilage degradation and bone erosion, and the autoreactive adaptive immune response. RESULTS We observed a redundant role of MCs in K/BxN serum-induced arthritis, where joint inflammation is triggered by cartilage-bound immune complexes independently of T cells. In contrast, we found MCs to be critically relevant in CIA, which is provoked by two arms of autoimmune attack: autoreactive antibodies and effector T cells. In addition to diminished joint inflammation in the absence of MCs, we found a dramatic loss of T cell expansion upon immunization, accompanied by reduced T cell cytokine responses. CONCLUSION In this analysis of an arthritis model in which the cellular arm of adaptive immunity was not bypassed, we identified MCs as important promoters of T cell-conditioned autoimmune disorders and, consequently, as potential therapeutic targets in rheumatoid arthritis.
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77
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Osteoarticular Expression of Musashi-1 in an Experimental Model of Arthritis. BIOMED RESEARCH INTERNATIONAL 2015; 2015:681456. [PMID: 26064941 PMCID: PMC4433648 DOI: 10.1155/2015/681456] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Revised: 01/11/2015] [Accepted: 01/20/2015] [Indexed: 12/31/2022]
Abstract
Background. Collagen-induced arthritis (CIA), a murine experimental disease model induced by immunization with type II collagen (CII), is used to evaluate novel therapeutic strategies for rheumatoid arthritis. Adult stem cell marker Musashi-1 (Msi1) plays an important role in regulating the maintenance and differentiation of stem/precursor cells. The objectives of this investigation were to perform a morphological study of the experimental CIA model, evaluate the effect of TNFα-blocker (etanercept) treatment, and determine the immunohistochemical expression of Msi1 protein. Methods. CIA was induced in 50 male DBA1/J mice for analyses of tissue and serum cytokine; clinical and morphological lesions in limbs; and immunohistochemical expression of Msi1. Results. Clinically, TNFα-blocker treatment attenuated CIA on day 32 after immunization (P < 0.001). Msi1 protein expression was significantly higher in joints damaged by CIA than in those with no lesions (P < 0.0001) and was related to the severity of the lesions (Spearman's rho = 0.775, P = 0.0001). Conclusions. Treatment with etanercept attenuates osteoarticular lesions in the murine CIA model. Osteoarticular expression of Msi1 protein is increased in joints with CIA-induced lesion and absent in nonlesioned joints, suggesting that this protein is expressed when the lesion is produced in order to favor tissue repair.
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78
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Campo GM, Micali A, Avenoso A, D'Ascola A, Scuruchi M, Pisani A, Bruschetta A, Calatroni A, Puzzolo D, Campo S. Inhibition of small HA fragment activity and stimulation of A2A adenosine receptor pathway limit apoptosis and reduce cartilage damage in experimental arthritis. Histochem Cell Biol 2015; 143:531-43. [PMID: 25511416 DOI: 10.1007/s00418-014-1298-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/28/2014] [Indexed: 02/07/2023]
Abstract
Recent studies have found that the inactivation of small hyaluronan (HA) fragments originating from native HA during inflammation reduced the inflammatory response in models of experimental arthritis. The stimulation of adenosine receptors A2A reduced inflammation by inhibiting NF-kB activation. The combination of both treatments was significantly more effective than either of the individual treatments. The aim of this study was to further investigate the effects of a combined treatment using the HA inhibitor Pep-1 and a selective A2AR agonist (CV-1808) on the structure and ultrastructure of the articular cartilage and on apoptosis in a model of collagen-induced arthritis (CIA) in mice. Arthritic mice were treated with Pep-1 and/or CV-1808 intraperitoneally daily for 20 days. At day 35, the hind limbs were processed for light microscopy (hematoxylin/eosin and Safranin-O-Fast Green) and for transmission and scanning electron microscopy. CIA increased IL-6, caspase-3 and caspase-7 mRNA expression and the related protein levels in arthritic articular cartilage, and significantly increased concentrations of Bcl-2-associated X protein (Bax), while B cell-lymphoma-2 protein (Bcl-2) was markedly reduced. The combined Pep-1/CV-1808 treatment significantly reduced CIA injury, particularly at the highest doses, demonstrated by the presence of Safranin-O-positive cartilage, with a smooth surface and normal chondrocytes in the superficial, intermediate and deep zones. Morphological data and histological scoring were strongly supported by the reduction in inflammation and apoptotic markers. The results further support the role of HA degradation and A2A receptors in arthritis.
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MESH Headings
- Adenosine/analogs & derivatives
- Adenosine/pharmacology
- Adenosine A2 Receptor Agonists/pharmacology
- Animals
- Anti-Inflammatory Agents/pharmacology
- Apoptosis/drug effects
- Apoptosis Regulatory Proteins/genetics
- Apoptosis Regulatory Proteins/metabolism
- Arthritis, Experimental/chemically induced
- Arthritis, Experimental/drug therapy
- Arthritis, Experimental/metabolism
- Arthritis, Experimental/pathology
- Cartilage, Articular/drug effects
- Cartilage, Articular/metabolism
- Cartilage, Articular/ultrastructure
- Chondrocytes/drug effects
- Chondrocytes/metabolism
- Chondrocytes/pathology
- Collagen Type II
- Drug Therapy, Combination
- Freund's Adjuvant
- Hyaluronic Acid/antagonists & inhibitors
- Hyaluronic Acid/metabolism
- Inflammation Mediators/metabolism
- Joints/drug effects
- Joints/metabolism
- Joints/ultrastructure
- Male
- Mice, Inbred DBA
- Microscopy, Electron, Scanning
- Microscopy, Electron, Transmission
- Peptides/pharmacology
- Receptor, Adenosine A2A/drug effects
- Receptor, Adenosine A2A/metabolism
- Severity of Illness Index
- Signal Transduction/drug effects
- Time Factors
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Affiliation(s)
- Giuseppe M Campo
- Section of Medical Biotechnologies and Preventive Medicine, Department of Biomedical Sciences and Morphofunctional Images, School of Medicine, University of Messina, Policlinico Universitario, Torre Biologica, 5° piano, Via C. Valeria 1, 98125, Messina, Italy,
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79
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Mukai T, Gallant R, Ishida S, Kittaka M, Yoshitaka T, Fox DA, Morita Y, Nishida K, Rottapel R, Ueki Y. Loss of SH3 domain-binding protein 2 function suppresses bone destruction in tumor necrosis factor-driven and collagen-induced arthritis in mice. Arthritis Rheumatol 2015; 67:656-67. [PMID: 25470448 DOI: 10.1002/art.38975] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Accepted: 11/25/2014] [Indexed: 12/29/2022]
Abstract
OBJECTIVE SH3 domain-binding protein 2 (SH3BP2) is a signaling adapter protein that regulates the immune and skeletal systems. The present study was undertaken to investigate the role of SH3BP2 in arthritis using 2 experimental mouse models, i.e., human tumor necrosis factor α-transgenic (hTNF-Tg) mice and mice with collagen-induced arthritis (CIA). METHODS First, Sh3bp2(-/-) and wild-type (Sh3bp2(+/+) ) mice were crossed with hTNF-Tg mice. Inflammation and bone loss were examined by clinical inspection and histologic and micro-computed tomography analysis, and osteoclastogenesis was evaluated using primary bone marrow-derived macrophage colony-stimulating factor-dependent macrophages (BMMs). Second, CIA was induced in Sh3bp2(-/-) and Sh3bp2(+/+) mice, and the incidence and severity of arthritis were evaluated. Anti-mouse type II collagen (CII) antibody levels were measured by enzyme-linked immunosorbent assay, and lymph node cell responses to CII were determined. RESULTS SH3BP2 deficiency did not alter the severity of joint swelling but did suppress bone erosion in the hTNF-Tg mouse model. Bone loss at the talus and tibia was prevented in Sh3bp2(-/-) /hTNF-Tg mice compared to Sh3bp2(+/+) /hTNF-Tg mice. RANKL- and TNFα-induced osteoclastogenesis was suppressed in Sh3bp2(-/-) mouse BMM cultures. NF-ATc1 nuclear localization in response to TNFα was decreased in Sh3bp2(-/-) mouse BMMs compared to Sh3bp2(+/+) mouse BMMs. In the CIA model, SH3BP2 deficiency suppressed the incidence of arthritis and this was associated with decreased anti-CII antibody production, while antigen-specific T cell responses in lymph nodes were not significantly different between Sh3bp2(+/+) and Sh3bp2(-/-) mice. CONCLUSION SH3BP2 deficiency prevents loss of bone via impaired osteoclastogenesis in the hTNF-Tg mouse model and suppresses the induction of arthritis via decreased autoantibody production in the CIA model. Therefore, SH3BP2 could potentially be a therapeutic target in rheumatoid arthritis.
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80
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Kondo Y, Yao Z, Tahara M, Iizuka M, Yokosawa M, Kaneko S, Segawa S, Tsuboi H, Yoh K, Takahashi S, Matsumoto I, Sumida T. Involvement of RORγt-overexpressing T cells in the development of autoimmune arthritis in mice. Arthritis Res Ther 2015; 17:105. [PMID: 25928901 PMCID: PMC4436146 DOI: 10.1186/s13075-015-0606-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Accepted: 03/23/2015] [Indexed: 01/14/2023] Open
Abstract
INTRODUCTION Differentiation of T helper 17 cells is dependent on the expression of transcription retinoid-related orphan receptor gamma t (RORγt). The purpose of our study is to determine the role of RORγt expression in T cells on the development of collagen-induced arthritis (CIA). METHODS CIA was induced in C57BL/6 and T cell-specific RORγt transgenic (RORγt Tg) mice. At day 10 post-1st-immunization, lymph node (LN) cells were cultured with type II collagen (CII), and the expression levels of various cytokines and transcription factors on CD4+ T cells were measured. Total cells or CD4+ cells of draining LN were harvested from each mouse group after CII-immunization and transferred into C57BL/6 mice, and then CIA was induced in recipient mice. The expression levels of RORγt and other surface antigens, and the production of cytokines were analyzed in forkhead box P3 (Foxp3)+ regulatory T (Treg) cells. Foxp3+ Treg cells were analyzed for suppressive activity against proliferation of effector CD4+ T cells. Interlukin (IL)-10 neutralizing antibody was administrated in the course of CIA. RESULTS CIA was significantly suppressed in RORγt Tg mice compared with C57BL/6 mice. RORγt expression and IL-17 production were significantly higher in CII-reactive CD4+ T cells from RORγt Tg mice. Arthritis was significantly attenuated in C57BL/6 mice recipient of cells from RORγt Tg mice. Most of Foxp3+ Treg cells expressed RORγt, produced IL-10 but not IL-17, and overexpressed CC chemokine receptor 6 (CCR6) and surface antigens related to the suppressive activity of Foxp3+ Treg cells in RORγt Tg mice. In vitro suppression assay demonstrated significant augmentation of the suppressive capacity of Foxp3+ Treg cells in RORγt Tg mice. CIA was exacerbated in both C57BL/6 mice and RORγt Tg mice by the treatment of anti-IL-10 antibody. CONCLUSION Our results indicated that RORγt overexpression in T cells protected against the development of CIA. The protective effects were mediated, at least in part, through the anti-inflammatory effects including high production of IL-10 of RORγt+Foxp3+ Treg cells.
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Affiliation(s)
- Yuya Kondo
- Department of Internal Medicine, Faculty of Medicine, University of Tuskuba, 1-1-1 Tennodai, Tsukuba City, Ibaraki, 305-8575, Japan.
| | - Zhaojin Yao
- Department of Internal Medicine, Faculty of Medicine, University of Tuskuba, 1-1-1 Tennodai, Tsukuba City, Ibaraki, 305-8575, Japan.
| | - Masahiro Tahara
- Department of Internal Medicine, Faculty of Medicine, University of Tuskuba, 1-1-1 Tennodai, Tsukuba City, Ibaraki, 305-8575, Japan.
| | - Mana Iizuka
- Department of Internal Medicine, Faculty of Medicine, University of Tuskuba, 1-1-1 Tennodai, Tsukuba City, Ibaraki, 305-8575, Japan.
| | - Masahiro Yokosawa
- Department of Internal Medicine, Faculty of Medicine, University of Tuskuba, 1-1-1 Tennodai, Tsukuba City, Ibaraki, 305-8575, Japan.
| | - Shunta Kaneko
- Department of Internal Medicine, Faculty of Medicine, University of Tuskuba, 1-1-1 Tennodai, Tsukuba City, Ibaraki, 305-8575, Japan.
| | - Seiji Segawa
- Department of Internal Medicine, Faculty of Medicine, University of Tuskuba, 1-1-1 Tennodai, Tsukuba City, Ibaraki, 305-8575, Japan.
| | - Hiroto Tsuboi
- Department of Internal Medicine, Faculty of Medicine, University of Tuskuba, 1-1-1 Tennodai, Tsukuba City, Ibaraki, 305-8575, Japan.
| | - Keigyou Yoh
- Department of Internal Medicine, Faculty of Medicine, University of Tuskuba, 1-1-1 Tennodai, Tsukuba City, Ibaraki, 305-8575, Japan.
| | - Satoru Takahashi
- Department of Anatomy and Embryology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba City, Ibaraki, 305-8575, Japan. .,International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba City, Ibaraki, 305-8575, Japan. .,Life Science Center, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, 1-1-1 Tennodai, Tsukuba City, Ibaraki, 305-8575, Japan. .,Laboratory Animal Resource Center (LARC), University of Tsukuba, 1-1-1 Tennodai, Tsukuba City, Ibaraki, 305-8575, Japan.
| | - Isao Matsumoto
- Department of Internal Medicine, Faculty of Medicine, University of Tuskuba, 1-1-1 Tennodai, Tsukuba City, Ibaraki, 305-8575, Japan.
| | - Takayuki Sumida
- Department of Internal Medicine, Faculty of Medicine, University of Tuskuba, 1-1-1 Tennodai, Tsukuba City, Ibaraki, 305-8575, Japan.
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81
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Marcińska K, Majewska-Szczepanik M, Maresz KZ, Szczepanik M. Epicutaneous Immunization with Collagen Induces TCRαβ Suppressor T Cells That Inhibit Collagen-Induced Arthritis. Int Arch Allergy Immunol 2015; 166:121-34. [PMID: 25824601 DOI: 10.1159/000375404] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Accepted: 01/21/2015] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND We have shown previously, in an animal model of multiple sclerosis and in TNBS-induced colitis, that epicutaneous (EC) immunization with protein antigen induces T suppressor cells that strongly inhibit the inflammatory response in contact hypersensitivity reactions. METHODS EC immunization was performed by applying to the shaved skin of the mouse dorsum a gauze patch soaked with a solution containing various amounts of type II collagen (COLL II) in a volume of 100 µl of PBS on days 0 and 4. On day 7 the patches were removed and mice were intradermally (i.d.) immunized with COLL II to induce collagen-induced arthritis (CIA). RESULTS Our study shows that EC immunization with 100 or 30 μg of COLL II reduces disease severity, whereas lower doses (10 or 3 μg) do not affect CIA. Decreased disease severity observed after EC immunization with COLL II correlates with reduced myeloperoxidase activity in joint tissue and with reduced production of anti-citrullinated protein and anti-COLL II IgG2a antibodies. Transfer experiments show that EC immunization with COLL II induces suppressor cells that belong to the population of TCRαβ lymphocytes and that EC-induced suppression declines with time. Both in vitro and in vivo experiments show that IL-17A plays an important role in EC-induced suppression of CIA. EC application of COLL II at the first signs of CIA also results in disease suppression. CONCLUSIONS The suppression of inflammatory responses by T suppressor cells induced through EC immunization of a protein antigen may become an attractive noninvasive therapeutic method for a variety of clinical situations.
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Affiliation(s)
- Katarzyna Marcińska
- Department of Medical Biology, Jagiellonian University Medical College, Kraków, Poland
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82
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Choi JK, Oh HM, Park JH, Choi JH, Sa KH, Kang YM, Park PH, Shin TY, Rho MC, Kim SH. Salvia plebeia extract inhibits the inflammatory response in human rheumatoid synovial fibroblasts and a murine model of arthritis. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2015; 22:415-422. [PMID: 25837280 DOI: 10.1016/j.phymed.2015.01.007] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Revised: 01/01/2015] [Accepted: 01/08/2015] [Indexed: 06/04/2023]
Abstract
Salvia plebeia R. Br. has been used to treat a variety of inflammatory diseases and as an antioxidant in many countries, including Korea and China. In this study, we investigated the effects of S. plebeia extract (SPE) on inflammatory arthritis and the underlying mechanisms of action. We used a collagen-induced arthritis (CIA) mouse model. TNF-α-stimulated rheumatoid arthritis (RA) synovial fibroblasts were used to elucidate the underlying mechanisms of action. Oral administration of SPE improved the clinical arthritis score, footpad thickness, and histologic changes, as well as serum IgG1 and IgG2a levels. SPE administration inhibited Th1/Th2/Th17 phenotype CD4(+) T lymphocyte expansion in inguinal lymph node and expression of inflammatory mediators such as cytokines, MMP-1, and MMP-3 in the ankle joint tissue. SPE significantly suppressed the expression of cytokines and MMP-1 by down-regulating NF-κB, Akt, and mitogen-activated protein kinases in RA synovial fibroblasts. Taken together, these results indicate that SPE is therapeutically efficacious against chronic inflammatory arthritis, suggesting that SPE is a candidate for treating RA.
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Affiliation(s)
- Jin Kyeong Choi
- CMRI, Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu 700-422, Republic of Korea
| | - Hyun-Mee Oh
- Bio-Materials Research Institute, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 580-185, Republic of Korea
| | - Jee Hun Park
- R&D Center Pharmaceutical lab, Korean Drug Co., LTD, Seoul 135-270, Republic of Korea
| | - Jung Ho Choi
- R&D Center Pharmaceutical lab, Korean Drug Co., LTD, Seoul 135-270, Republic of Korea
| | - Keum Hee Sa
- Department of Internal Medicine (Rheumatology), School of Medicine, Kyungpook National University, Daegu 700-422, Republic of Korea
| | - Young Mo Kang
- Department of Internal Medicine (Rheumatology), School of Medicine, Kyungpook National University, Daegu 700-422, Republic of Korea
| | - Pil-Hoon Park
- College of Pharmacy, Yeungnam University, Gyeongbuk 712-749, Republic of Korea
| | - Tae-Yong Shin
- College of Pharmacy, Woosuk University, Jeonju 565-701, Republic of Korea
| | - Mun-Chual Rho
- Bio-Materials Research Institute, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 580-185, Republic of Korea
| | - Sang-Hyun Kim
- CMRI, Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu 700-422, Republic of Korea.
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83
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Solt LA, Banerjee S, Campbell S, Kamenecka TM, Burris TP. ROR inverse agonist suppresses insulitis and prevents hyperglycemia in a mouse model of type 1 diabetes. Endocrinology 2015; 156:869-81. [PMID: 25560829 PMCID: PMC4330305 DOI: 10.1210/en.2014-1677] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Hyperglycemia associated with type 1 diabetes is a consequence of immune-mediated destruction of insulin producing pancreatic β-cells. Although it is apparent that both CD8(+) T cells and TH1 cells are key contributors to type 1 diabetes, the function of TH17 cells in disease onset and progression remains unclear. The nuclear receptors retinoic acid receptor-related orphan receptors-α and γt (RORα and RORγt) play critical roles in the development of TH17 cells and ROR-specific synthetic ligands have proven efficacy in several mouse models of autoimmunity. To investigate the roles and therapeutic potential for targeting the RORs in type 1 diabetes, we administered SR1001, a selective RORα/γ inverse agonist, to nonobese diabetic mice. SR1001 significantly reduced diabetes incidence and insulitis in the treated mice. Furthermore, SR1001 reduced proinflammatory cytokine expression, particularly TH17-mediated cytokines, reduced autoantibody production, and increased the frequency of CD4(+)Foxp3(+) T regulatory cells. These data suggest that TH17 cells may have a pathological role in the development of type 1 diabetes, and use of ROR-specific synthetic ligands targeting this cell type may prove utility as a novel treatment for type 1 diabetes.
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MESH Headings
- Animals
- Autoantibodies
- Cytokines/genetics
- Cytokines/metabolism
- Diabetes Mellitus, Type 1/blood
- Diabetes Mellitus, Type 1/metabolism
- Female
- Forkhead Transcription Factors/genetics
- Forkhead Transcription Factors/metabolism
- Gene Expression Regulation/drug effects
- Hyperglycemia/prevention & control
- Insulin/metabolism
- Mice
- Mice, Inbred NOD
- Nuclear Receptor Subfamily 1, Group F, Member 1/agonists
- Nuclear Receptor Subfamily 1, Group F, Member 1/genetics
- Nuclear Receptor Subfamily 1, Group F, Member 1/metabolism
- Nuclear Receptor Subfamily 1, Group F, Member 3/agonists
- Nuclear Receptor Subfamily 1, Group F, Member 3/genetics
- Nuclear Receptor Subfamily 1, Group F, Member 3/metabolism
- Sulfonamides/pharmacology
- Th17 Cells/drug effects
- Th17 Cells/metabolism
- Thiazoles/pharmacology
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Affiliation(s)
- Laura A Solt
- Department of Molecular Therapeutics (L.A.S., S.B., S.C., T.M.K.), The Scripps Research Institute, Jupiter, Florida 33458; and Department of Pharmacological and Physiological Science (T.B.P.), Saint Louis University School of Medicine, St Louis, Missouri 63104
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84
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Kim JE, Chae CS, Kim GC, Hwang W, Hwang JS, Hwang SM, Kim Y, Ahn YT, Park SG, Jun CD, Rudra D, Im SH. Lactobacillus helveticus suppresses experimental rheumatoid arthritis by reducing inflammatory T cell responses. J Funct Foods 2015. [DOI: 10.1016/j.jff.2015.01.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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85
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Paradoxical effects of human adipose tissue-derived mesenchymal stem cells on progression of experimental arthritis in SKG mice. Cell Immunol 2014; 292:94-101. [DOI: 10.1016/j.cellimm.2014.10.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Accepted: 10/28/2014] [Indexed: 12/31/2022]
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86
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Mukai T, Gallant R, Ishida S, Yoshitaka T, Kittaka M, Nishida K, Fox DA, Morita Y, Ueki Y. SH3BP2 gain-of-function mutation exacerbates inflammation and bone loss in a murine collagen-induced arthritis model. PLoS One 2014; 9:e105518. [PMID: 25144740 PMCID: PMC4140794 DOI: 10.1371/journal.pone.0105518] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Accepted: 07/21/2014] [Indexed: 12/13/2022] Open
Abstract
Objective SH3BP2 is a signaling adapter protein which regulates immune and skeletal systems. Gain-of-function mutations in SH3BP2 cause cherubism, characterized by jawbone destruction. This study was aimed to examine the role of SH3BP2 in inflammatory bone loss using a collagen-induced arthritis (CIA) model. Methods CIA was induced in wild-type (Sh3bp2+/+) and heterozygous P416R SH3BP2 cherubism mutant knock-in (Sh3bp2KI/+) mice, an SH3BP2 gain-of-function model. Severity of the arthritis was determined by assessing the paw swelling and histological analyses of the joints. Micro-CT analysis was used to determine the levels of bone loss. Inflammation and osteoclastogenesis in the joints were evaluated by quantitating the gene expression of inflammatory cytokines and osteoclast markers. Furthermore, involvement of the T- and B-cell responses was determined by draining lymph node cell culture and measurement of the serum anti-mouse type II collagen antibody levels, respectively. Finally, roles of the SH3BP2 mutation in macrophage activation and osteoclastogenesis were determined by evaluating the TNF-α production levels and osteoclast formation in bone marrow-derived M-CSF-dependent macrophage (BMM) cultures. Results Sh3bp2KI/+ mice exhibited more severe inflammation and bone loss, accompanying an increased number of osteoclasts. The mRNA levels for TNF-α and osteoclast marker genes were higher in the joints of Sh3bp2KI/+ mice. Lymph node cell culture showed that lymphocyte proliferation and IFN-γ and IL-17 production were comparable between Sh3bp2+/+ and Sh3bp2KI/+ cells. Serum anti-type II collagen antibody levels were comparable between Sh3bp2+/+ and Sh3bp2KI/+ mice. In vitro experiments showed that TNF-α production in Sh3bp2KI/+ BMMs is elevated compared with Sh3bp2+/+ BMMs and that RANKL-induced osteoclastogenesis is enhanced in Sh3bp2KI/+ BMMs associated with increased NFATc1 nuclear localization. Conclusion Gain-of-function of SH3BP2 augments inflammation and bone loss in the CIA model through increased macrophage activation and osteoclast formation. Therefore, modulation of the SH3BP2 expression may have therapeutic potential for the treatment of rheumatoid arthritis.
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Affiliation(s)
- Tomoyuki Mukai
- Department of Oral and Craniofacial Sciences, School of Dentistry, University of Missouri-Kansas City, Kansas City, Missouri, United States of America
| | - Richard Gallant
- Department of Oral and Craniofacial Sciences, School of Dentistry, University of Missouri-Kansas City, Kansas City, Missouri, United States of America
| | - Shu Ishida
- Department of Oral and Craniofacial Sciences, School of Dentistry, University of Missouri-Kansas City, Kansas City, Missouri, United States of America
- Department of Periodontal Medicine, Applied life Sciences, Institute of Biomedical and Health Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Teruhito Yoshitaka
- Department of Oral and Craniofacial Sciences, School of Dentistry, University of Missouri-Kansas City, Kansas City, Missouri, United States of America
| | - Mizuho Kittaka
- Department of Oral and Craniofacial Sciences, School of Dentistry, University of Missouri-Kansas City, Kansas City, Missouri, United States of America
| | - Keiichiro Nishida
- Department of Orthopaedic Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
- Department of Human Morphology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - David A. Fox
- Division of Rheumatology, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Yoshitaka Morita
- Department of Rheumatology, Kawasaki Medical School, Kurashiki, Japan
| | - Yasuyoshi Ueki
- Department of Oral and Craniofacial Sciences, School of Dentistry, University of Missouri-Kansas City, Kansas City, Missouri, United States of America
- * E-mail:
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87
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Andersson C, Wenander CS, Usher PA, Hebsgaard JB, Sondergaard BC, Rønø B, Mackay C, Friedrichsen B, Chang C, Tang R, Hornum L. Rapid-onset clinical and mechanistic effects of anti-C5aR treatment in the mouse collagen-induced arthritis model. Clin Exp Immunol 2014; 177:219-33. [PMID: 24665841 DOI: 10.1111/cei.12338] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/13/2014] [Indexed: 12/17/2022] Open
Abstract
Preclinical evidence supports targeting the C5a receptor (C5aR) in rheumatoid arthritis (RA). To support ongoing clinical development of an anti-C5aR monoclonal antibody, we have investigated for the first time the mechanism of action and the pharmacodynamics of a blocking anti-murine C5aR (anti-mC5aR) surrogate antibody in mouse collagen-induced arthritis (CIA). First, efficacy was demonstrated in a multiple-dose treatment study. Almost complete inhibition of clinical disease progression was obtained, including reduced bone and cartilage destruction in anti-mC5aR-treated mice. Then, the mechanism of action was examined by looking for early effects of anti-mC5aR treatment in single-dose treatment studies. We found that 48 h after single-dose treatment with anti-mC5aR, the neutrophil and macrophage infiltration into the paws was already reduced. In addition, several inflammatory markers, including tumour necrosis factor (TNF)-α, interleukin (IL)-6 and IL-17A were reduced locally in the paws, indicating reduction of local inflammation. Furthermore, dose-setting experiments supported a beneficial clinical effect of dosing above the C5aR saturation level. In conclusion, these preclinical data demonstrated rapid onset effects of antibody blockade of C5aR. The data have translational value in supporting the Novo Nordisk clinical trials of an anti-C5aR antibody in rheumatoid arthritis patients, by identifying potential biomarkers of treatment effects as well as by providing information on pharmacodynamics and novel insights into the mechanism of action of monoclonal antibody blockade of C5aR.
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Affiliation(s)
- C Andersson
- Inflammatory Arthritis, Immunopharmacology, Novo Nordisk A/S, Måløv, Denmark
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88
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Pineda MA, Al-Riyami L, Harnett W, Harnett MM. Lessons from helminth infections: ES-62 highlights new interventional approaches in rheumatoid arthritis. Clin Exp Immunol 2014; 177:13-23. [PMID: 24666108 PMCID: PMC4089150 DOI: 10.1111/cei.12252] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/06/2013] [Indexed: 12/19/2022] Open
Abstract
Parasitic worms are able to survive in their mammalian host for many years due to their ability to manipulate the immune response by secreting immunomodulatory products. It is increasingly clear that, reflecting the anti-inflammatory actions of such worm-derived immunomodulators, there is an inverse correlation between helminth infection and autoimmune diseases in the developing world. As the decrease in helminth infections due to increased sanitation has correlated with an alarming increase in prevalence of such disorders in industrialized countries, this ‘hygiene hypothesis’ has led to the proposal that worms and their secreted products offer a novel platform for the development of safe and effective strategies for the treatment of autoimmune disorders. In this study we review the anti-inflammatory effects of one such immunomodulator, ES-62 on innate and adaptive immune responses and the mechanisms it exploits to afford protection in the murine collagen-induced arthritis (CIA) model of rheumatoid arthritis (RA). As its core mechanism involves targeting of interleukin (IL)-17 responses, which despite being pathogenic in RA are important for combating infection, we discuss how its selective targeting of IL-17 production by T helper type 17 (Th17) and γδ T cells, while leaving that of CD49b+ natural killer (NK and NK T) cells intact, reflects the ability of helminths to modulate the immune system without immunocompromising the host. Exploiting helminth immunomodulatory mechanisms therefore offers the potential for safer therapies than current biologicals, such as ‘IL-17 blockers’, that are not able to discriminate sources of IL-17 and hence present adverse effects that limit their therapeutic potential.
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Affiliation(s)
- M A Pineda
- Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, UK
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89
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Madhu KD, Harindran J. Antiarthritic potential of Ocimum gratissimum L. in collagen induced arthritic Sprague-Dawley rats. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.biomag.2014.02.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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90
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Shimura N. Effects of low-dose-gamma rays on the immune system of different animal models of disease. Dose Response 2014; 12:429-65. [PMID: 25249835 PMCID: PMC4146334 DOI: 10.2203/dose-response.13-042.shimura] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
We reviewed the beneficial or harmful effects of low-dose ionizing radiation on several diseases based on a search of the literature. The attenuation of autoimmune manifestations in animal disease models irradiated with low-dose γ-rays was previously reported by several research groups, whereas the exacerbation of allergic manifestations was described by others. Based on a detailed examination of the literature, we divided animal disease models into two groups: one group consisting of collagen-induced arthritis (CIA), experimental encephalomyelitis (EAE), and systemic lupus erythematosus, the pathologies of which were attenuated by low-dose irradiation, and another group consisting of atopic dermatitis, asthma, and Hashimoto's thyroiditis, the pathologies of which were exacerbated by low-dose irradiation. The same biological indicators, such as cytokine levels and T-cell subpopulations, were examined in these studies. Low-dose irradiation reduced inter-feron (IFN)-gamma (γ) and interleukin (IL)-6 levels and increased IL-5 levels and the percentage of CD4(+)CD25(+)Foxp3(+)Treg cells in almost all immunological disease cases examined. Variations in these biological indicators were attributed to the attenuation or exacerbation of the disease's manifestation. We concluded that autoimmune diseases caused by autoantibodies were attenuated by low-dose irradiation, whereas diseases caused by antibodies against external antigens, such as atopic dermatitis, were exacerbated.
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Affiliation(s)
- Noriko Shimura
- Faculty of Pharmaceutical Sciences, Ohu University, Japan
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91
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Kundu-Raychaudhuri S, Mitra A, Datta-Mitra A, Chaudhari AJ, Raychaudhuri SP. In vivo quantification of mouse autoimmune arthritis by PET/CT. Int J Rheum Dis 2014; 19:452-8. [PMID: 24965561 DOI: 10.1111/1756-185x.12410] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
AIM To quantify the progression and severity of mouse collagen-induced arthritis (CIA) using an in vivo imaging tool, (18) F-fluorodeoxyglucose ((18) F-FDG) PET/CT and validate it against gold standard 'histopathological' evaluation. METHOD The PET radiotracer (18) F-FDG, a marker for glucose metabolism, was injected in mice at different stages of CIA and the radiotracer distribution was imaged using a PET scanner. A sequential CT scan provided correlated anatomy. Radiotracer concentration was derived from PET/CT images for individual limb joints and on a per-limb basis at different stages of the disease. The imaging outcomes were subjected to correlation analysis with concurrently measured clinical and histological score. RESULTS Clinical and histological score, and hence disease severity, showed a strong linear correlation (r(2) = 0.71, P = 0.001 and r(2) = 0.87, P < 0.001, respectively) with radiotracer concentration measured from PET/CT during the progression of CIA. CONCLUSIONS The strong positive correlation of the (18) F-FDG PET/CT findings with the histopathological evaluation at different stages of the disease suggest the potential of this imaging tool for the non-invasive assessment of progression and severity in mouse autoimmune arthritis. Thus, in preclinical studies, (18) F-FDG PET/CT can be considered as a non-invasive tool to develop novel therapies of inflammatory arthritis.
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Affiliation(s)
- Smriti Kundu-Raychaudhuri
- Division of Rheumatology, Allergy and Clinical Immunology, School of Medicine, University of California Davis, Davis, California, USA.,VA Northern California Health Care System, Sacramento, California, USA
| | - Anupam Mitra
- VA Northern California Health Care System, Sacramento, California, USA.,Division of Dermatology, School of Medicine, University of California Davis, Sacramento, California, USA
| | - Ananya Datta-Mitra
- Division of Rheumatology, Allergy and Clinical Immunology, School of Medicine, University of California Davis, Davis, California, USA.,VA Northern California Health Care System, Sacramento, California, USA
| | - Abhijit J Chaudhari
- Department of Radiology, School of Medicine, University of California Davis, Sacramento, California, USA
| | - Siba P Raychaudhuri
- Division of Rheumatology, Allergy and Clinical Immunology, School of Medicine, University of California Davis, Davis, California, USA.,VA Northern California Health Care System, Sacramento, California, USA
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92
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Takahashi Y, Tanaka M, Murai R, Kuribayashi K, Kobayashi D, Yanagihara N, Watanabe N. Prophylactic and therapeutic effects of Acanthopanax senticosus Harms extract on murine collagen-induced arthritis. Phytother Res 2014; 28:1513-9. [PMID: 24797499 PMCID: PMC4235467 DOI: 10.1002/ptr.5157] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2013] [Revised: 02/28/2014] [Accepted: 03/25/2014] [Indexed: 12/05/2022]
Abstract
Evidences are accumulating that extract of Acanthopanax senticosus Harms (ASH; syn Eleutherococcus senticosus [Rupr. & Maxim.] Maxim), a shrub native to Northeastern Asia, has antiinflammatory effects. In this study, we examined prophylactic and therapeutic effects of ASH extract (ASHE) on rheumatoid arthritis using collagen-induced arthritis (CIA) mouse model. Acanthopanax senticosus Harms extract was administered before the onset of arthritis in the prophylaxis model. In the therapeutic model, ASHE was administered after the onset of arthritis with or without anti-TNF-α antibody. The ASHE treatment showed efficacy before onset of CIA but there was no effect after CIA was established. The ASHE treatment delayed the onset and decreased severity of CIA. In vitro examinations showed that ASHE is an antioxidant and that ASHE suppresses TNF-α and interleukin-6 production in human peripheral blood mononuclear cells. The combination therapy with ASHE and anti-TNF-α antibody reduced the severity of arthritis compared with anti-TNF-α antibody alone. The present study shows that ASHE has prophylactic effect against CIA and support therapeutic effect of anti-TNF-α antibody. © 2014 The Authors. Phytotherapy Research published by John Wiley & Sons Ltd.
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Affiliation(s)
- Yusuke Takahashi
- Department of Clinical Laboratory Medicine, Sapporo Medical University School of Medicine, Sapporo, Japan
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93
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Abdalmula A, Washington E, House J, Dooley L, Blacklaws B, Ghosh P, Bailey S, Kimpton W. Clinical and histopathological characterization of a large animal (ovine) model of collagen-induced arthritis. Vet Immunol Immunopathol 2014; 159:83-90. [DOI: 10.1016/j.vetimm.2014.03.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Revised: 02/24/2014] [Accepted: 03/12/2014] [Indexed: 11/25/2022]
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Korean red ginseng saponin fraction rich in ginsenoside-Rb1, Rc and Rb2 attenuates the severity of mouse collagen-induced arthritis. Mediators Inflamm 2014; 2014:748964. [PMID: 24833816 PMCID: PMC4009181 DOI: 10.1155/2014/748964] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Accepted: 03/05/2014] [Indexed: 11/17/2022] Open
Abstract
Despite a multitude of reports on anti-inflammatory properties of ginseng extracts or individual ginsenosides, data on antiarthritic effect of ginseng saponin preparation with mixed ginsenosides is limited. On the other hand, a combined therapy of safe and inexpensive plant-derived natural products such as ginsenosides can be considered as an alternative to treat arthritis. Our previous in vitro data displayed a strong anti-inflammatory action of red ginseng saponin fraction-A (RGSF-A). We, herein, report a marked antiarthritic property of RGSF-A rich in ginsenoside Rb1, Rc, and Rb2. Collagen-induced arthritic (CIA) mice were treated with RGSF-A or methotrexate (MTX) for 5 weeks. Joint pathology, serum antibody production and leukocye activation, cytokine production in the circulation, lymph nodes, and joints were examined. RGSF-A markedly reduced severity of arthritis, cellular infiltration, and cartilage damage. It suppressed CD3(+)/CD69(+), CD4(+)/CD25(+), CD8(+) T-cell, CD19(+), B220/CD23(+) B-cell, MHCII(+)/CD11c(+), and Gr-1(+)/CD11b(+) cell activations. It further suppressed anti-CII- or anti-RF-IgG/IgM, TNF-α, IL-1β, IL-17, and IL-6 secretions but stimulated IL-10 levels in the serum, joint, or splenocyte. RGSF-A attenuated arthritis severity, modified leukocyte activations, and restored cytokine imbalances, suggesting that it can be considered as an antiarthritic agent with the capacity to ameliorate the immune and inflammatory responses in CIA mice.
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95
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Autoantibodies to posttranslational modifications in rheumatoid arthritis. Mediators Inflamm 2014; 2014:492873. [PMID: 24782594 PMCID: PMC3981057 DOI: 10.1155/2014/492873] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Accepted: 02/10/2014] [Indexed: 12/11/2022] Open
Abstract
Autoantibodies have been associated with human pathologies for a long time, particularly with autoimmune diseases (AIDs). Rheumatoid factor (RF) is known since the late 1930s to be associated with rheumatoid arthritis (RA). The discovery of anticitrullinated protein antibodies in the last century has changed this and other posttranslational modifications (PTM) relevant to RA have since been described. Such PTM introduce neoepitopes in proteins that can generate novel autoantibody specificities. The recent recognition of these novel specificities in RA provides a unique opportunity to understand human B-cell development in vivo. In this paper, we will review the three of the main classes of PTMs already associated with RA: citrullination, carbamylation, and oxidation. With the advancement of research methodologies it should be expected that other autoantibodies against PTM proteins could be discovered in patients with autoimmune diseases. Many of such autoantibodies may provide significant biomarker potential.
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96
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Alam J, Kim YC, Choi Y. Potential role of bacterial infection in autoimmune diseases: a new aspect of molecular mimicry. Immune Netw 2014; 14:7-13. [PMID: 24605075 PMCID: PMC3942510 DOI: 10.4110/in.2014.14.1.7] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Revised: 01/02/2014] [Accepted: 01/13/2014] [Indexed: 12/20/2022] Open
Abstract
Molecular mimicry is an attractive mechanism for triggering autoimmunity. In this review, we explore the potential role of evolutionary conserved bacterial proteins in the production of autoantibodies with focus on granulomatosis with polyangiitis (GPA) and rheumatoid arthritis (RA). Seven autoantigens characterized in GPA and RA were BLASTed against a bacterial protein database. Of the seven autoantigens, proteinase 3, type II collagen, binding immunoglobulin protein, glucose-6-phosphate isomerase, α-enolase, and heterogeneous nuclear ribonuclear protein have well-conserved bacterial orthologs. Importantly, those bacterial orthologs are also found in human-associated bacteria. The wide distribution of the highly conserved stress proteins or enzymes among the members of the normal flora and common infectious microorganisms raises a new question on how cross-reactive autoantibodies are not produced during the immune response to these bacteria in most healthy people. Understanding the mechanisms that deselect auto-reactive B cell clones during the germinal center reaction to homologous foreign antigens may provide a novel strategy to treat autoimmune diseases.
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Affiliation(s)
- Jehan Alam
- Department of Immunology and Molecular Microbiology, Dental research Institute, Seoul National University School of Dentistry, Seoul 110-749, Korea
| | - Yong Chul Kim
- Department of Immunology and Molecular Microbiology, Dental research Institute, Seoul National University School of Dentistry, Seoul 110-749, Korea
| | - Youngnim Choi
- Department of Immunology and Molecular Microbiology, Dental research Institute, Seoul National University School of Dentistry, Seoul 110-749, Korea
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97
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Chow LN, Choi KY(G, Piyadasa H, Bossert M, Uzonna J, Klonisch T, Mookherjee N. Human cathelicidin LL-37-derived peptide IG-19 confers protection in a murine model of collagen-induced arthritis. Mol Immunol 2014; 57:86-92. [DOI: 10.1016/j.molimm.2013.08.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Revised: 08/07/2013] [Accepted: 08/12/2013] [Indexed: 12/19/2022]
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98
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Tanaka S, Toki T, Akimoto T, Morishita K. Lipopolysaccharide accelerates collagen-induced arthritis in association with rapid and continuous production of inflammatory mediators and anti-type II collagen antibody. Microbiol Immunol 2014; 57:445-54. [PMID: 23773023 DOI: 10.1111/1348-0421.12052] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Revised: 03/14/2013] [Accepted: 04/02/2013] [Indexed: 01/28/2023]
Abstract
Collagen-induced arthritis (CIA) is an animal model for rheumatoid arthritis (RA). Lipopolysaccharide (LPS) is known to accelerate CIA; however, the pathogenetic mechanisms are not yet fully understood. In this study, type II collagen (CII)-immunized mice were found to have marked increases in degree of expression of mRNA of inflammatory mediators such as tumor necrosis factor alpha (TNF-α), interleukin (IL)-1β, and macrophage inflammatory protein-2 (MIP-2) in their arthritic paws and of serum anti-CII antibody concentration before the onset of arthritis induced by LPS injection. The gene expression was rapid and continuous after direct activation of nuclear factor κB. The amounts of mRNA of TNF-α, IL-1β, and MIP-2, as well as of matrix metalloproteinases and the receptor activator of nuclear factor κB ligand, increased with the development of arthritis, correlated positively with clinical severity and corresponded with histopathological changes. Moreover, anti-TNF-α neutralizing antibody inhibited the development of LPS-accelerated CIA and a single injection of recombinant mouse TNF-α induced increases in anti-CII antibody concentrations, suggesting TNF-α may contribute to the development of arthritis by both initiation of inflammation and production of autoantibodies. These data suggest that exacerbation of RA by LPS is associated with rapid and continuous production of inflammatory mediators and autoantibodies.
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Affiliation(s)
- Shinji Tanaka
- Frontier Research Laboratories, Daiichi Sankyo Co., Ltd., 1‐2‐58 Hiromachi, Tokyo 140‐8710, Japan.
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99
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Solomonsterol A, a marine pregnane-X-receptor agonist, attenuates inflammation and immune dysfunction in a mouse model of arthritis. Mar Drugs 2013; 12:36-53. [PMID: 24368568 PMCID: PMC3917259 DOI: 10.3390/md12010036] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Revised: 12/06/2013] [Accepted: 12/09/2013] [Indexed: 12/21/2022] Open
Abstract
In the present study we provide evidence that solomonsterol A, a selective pregnane X receptor (PXR) agonist isolated from the marine sponge Theonella swinhoei, exerts anti-inflammatory activity and attenuates systemic inflammation and immune dysfunction in a mouse model of rheumatoid arthritis. Solomonsterol A was effective in protecting against the development of arthritis induced by injecting transgenic mice harboring a humanized PXR, with anti-collagen antibodies (CAIA) with beneficial effects on joint histopathology and local inflammatory response reducing the expression of inflammatory markers (TNFα, IFNγ and IL-17 and chemokines MIP1α and RANTES) in draining lymph nodes. Solomonsterol A rescued mice from systemic inflammation were assessed by measuring arthritis score, CRP and cytokines in the blood. In summary, the present study provides a molecular basis for the regulation of systemic local and systemic immunity by PXR agonists.
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100
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Sarithakumari CH, Kurup GM. Alginic acid isolated from Sargassum wightii exhibits anti-inflammatory potential on type II collagen induced arthritis in experimental animals. Int Immunopharmacol 2013; 17:1108-15. [PMID: 24444809 DOI: 10.1016/j.intimp.2013.09.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2013] [Revised: 09/24/2013] [Accepted: 09/25/2013] [Indexed: 01/30/2023]
Abstract
The present study evaluated the anti-inflammatory potential of alginic acid isolated from the brown algae Sargassum wightii in type II collagen induced arthritic rats, a well established arthritic model that resembles more closely to human rheumatoid arthritis in its clinical, pathological, immunological and histological aspects. Type II collagen induced arthritic rats showed increased activities of inflammatory marker enzymes like cycloxygenase-2 (COX-2), lipoxygenase (5-LOX), xanthine oxidase (XO) and myeloperoxidase (MPO) along with increased concentration of rheumatoid factor (RF), ceruloplasmin and C-reactive protein (CRP). Treatment with alginic acid significantly reduced the activities of COX-2 and 5-LOX along with reduction in MPO, XO, RF and CRP. Alginic acid treatment reverted to the altered levels of hematological parameters like RBC count, WBC count and ESR in arthritic rats. Concentrations of proinflammatory cytokines like IL-1 β, TNF α and IL-6 were significantly higher in arthritic rats which were reduced on treatment with alginic acid. Increased activities of lysosomal enzymes that manifest the systemic damage during arthritis were significantly reduced by the treatment with alginic acid which indicates the reduction in the rupture and degradation of connective tissue. Histopathology of knee joint tissues showed that extensive bone degradation and synovial hyperplasia along with infiltrating cells and treatment with alginic acid reversed the histopathological changes which indicate the protective potential of alginic acid in rheumatoid arthritis.
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Affiliation(s)
- C H Sarithakumari
- Department of Biochemistry, University of Kerala, Kariavattom Campus, Trivandrum, Kerala 695881, India
| | - G Muraleedhara Kurup
- Department of Biochemistry, University of Kerala, Kariavattom Campus, Trivandrum, Kerala 695881, India.
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