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Xiong Y, Cai M, Xu Y, Dong P, Chen H, He W, Zhang J. Joint together: The etiology and pathogenesis of ankylosing spondylitis. Front Immunol 2022; 13:996103. [PMID: 36325352 PMCID: PMC9619093 DOI: 10.3389/fimmu.2022.996103] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Accepted: 09/28/2022] [Indexed: 08/16/2023] Open
Abstract
Spondyloarthritis (SpA) refers to a group of diseases with inflammation in joints and spines. In this family, ankylosing spondylitis (AS) is a rare but classic form that mainly involves the spine and sacroiliac joint, leading to the loss of flexibility and fusion of the spine. Compared to other diseases in SpA, AS has a very distinct hereditary disposition and pattern of involvement, and several hypotheses about its etiopathogenesis have been proposed. In spite of significant advances made in Th17 dynamics and AS treatment, the underlying mechanism remains concealed. To this end, we covered several topics, including the nature of the immune response, the microenvironment in the articulation that is behind the disease's progression, and the split between the hypotheses and the evidence on how the intestine affects arthritis. In this review, we describe the current findings of AS and SpA, with the aim of providing an integrated view of the initiation of inflammation and the development of the disease.
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Affiliation(s)
- Yuehan Xiong
- Department of Immunology, Chinese Academy of Medical Sciences (CAMS) Key Laboratory of T Cell and Cancer Immunotherapy, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences (CAMS) and School of Basic Medicine, Peking Union Medical College, Beijing, China
| | - Menghua Cai
- Department of Immunology, Chinese Academy of Medical Sciences (CAMS) Key Laboratory of T Cell and Cancer Immunotherapy, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences (CAMS) and School of Basic Medicine, Peking Union Medical College, Beijing, China
| | - Yi Xu
- Department of Immunology, Chinese Academy of Medical Sciences (CAMS) Key Laboratory of T Cell and Cancer Immunotherapy, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences (CAMS) and School of Basic Medicine, Peking Union Medical College, Beijing, China
| | - Peng Dong
- Changzhou Xitaihu Institute for Frontier Technology of Cell Therapy, Changzhou, China
| | - Hui Chen
- Department of Immunology, Chinese Academy of Medical Sciences (CAMS) Key Laboratory of T Cell and Cancer Immunotherapy, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences (CAMS) and School of Basic Medicine, Peking Union Medical College, Beijing, China
- Changzhou Xitaihu Institute for Frontier Technology of Cell Therapy, Changzhou, China
| | - Wei He
- Department of Immunology, Chinese Academy of Medical Sciences (CAMS) Key Laboratory of T Cell and Cancer Immunotherapy, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences (CAMS) and School of Basic Medicine, Peking Union Medical College, Beijing, China
- Changzhou Xitaihu Institute for Frontier Technology of Cell Therapy, Changzhou, China
| | - Jianmin Zhang
- Department of Immunology, Chinese Academy of Medical Sciences (CAMS) Key Laboratory of T Cell and Cancer Immunotherapy, State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences (CAMS) and School of Basic Medicine, Peking Union Medical College, Beijing, China
- Changzhou Xitaihu Institute for Frontier Technology of Cell Therapy, Changzhou, China
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Lee EK, Koh EM, Kim YN, Song J, Song CH, Jung KJ. Immunomodulatory Effect of Hispolon on LPS-Induced RAW264.7 Cells and Mitogen/Alloantigen-Stimulated Spleen Lymphocytes of Mice. Pharmaceutics 2022; 14:pharmaceutics14071423. [PMID: 35890318 PMCID: PMC9322787 DOI: 10.3390/pharmaceutics14071423] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 06/29/2022] [Accepted: 07/05/2022] [Indexed: 02/01/2023] Open
Abstract
Hispolon is a potent anticancer, anti-inflammatory, antioxidant, and antidiabetic agent isolated from Phellinus linteus, an oriental medicinal mushroom. However, the immunomodulatory mechanisms by which hispolon affects macrophages and lymphocytes remain poorly characterized. We investigated the immunomodulatory effects of hispolon on oxidative stress, inflammatory responses, and lymphocyte proliferation using lipopolysaccharide (LPS)-treated RAW264.7 macrophages or mitogen/alloantigen-treated mouse splenocytes. Hispolon inhibited LPS-induced reactive oxygen and nitrogen species (ROS/RNS) generation and decreased total sulfhydryl (SH) levels in a cell-free system and RAW264.7 cells. Hispolon exerted significant anti-inflammatory effects by inhibiting production of the proinflammatory cytokines interleukin 6 (IL-6) and tumor necrosis factor alpha (TNF-α) and activation of nuclear factor kappa B (NF-κB) and signal transducer and activator of transcription 3 (STAT3) in LPS-treated RAW264.7 cells. Hispolon also modulated NF-κB and STAT3 activation by suppressing the NF-κB p65 interaction with phospho-IκBα and the STAT3 interaction with JAK1, as determined via coimmunoprecipitation analysis. Additionally, hispolon significantly decreased lymphocyte proliferation, T cell responses and T helper type 1 (Th1)/type 2 (Th2) cytokines production in mitogen/alloantigen-treated splenocytes. We conclude that hispolon exerts immunomodulatory effects on LPS-treated macrophages or mitogen/alloantigen-treated splenocytes through antioxidant, anti-inflammatory, and antiproliferative activities. Thus, hispolon may be a therapeutic agent for treating immune-mediated inflammatory diseases.
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Affiliation(s)
- Eun Kyeong Lee
- Immunotoxicology Research Group, Korea Institute of Toxicology, 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, Korea; (E.K.L.); (E.M.K.); (Y.N.K.); (C.H.S.)
| | - Eun Mi Koh
- Immunotoxicology Research Group, Korea Institute of Toxicology, 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, Korea; (E.K.L.); (E.M.K.); (Y.N.K.); (C.H.S.)
| | - Yu Na Kim
- Immunotoxicology Research Group, Korea Institute of Toxicology, 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, Korea; (E.K.L.); (E.M.K.); (Y.N.K.); (C.H.S.)
| | - Jeongah Song
- Animal Model Research Group, Korea Institute of Toxicology, Jeongeup 56212, Korea;
| | - Chi Hun Song
- Immunotoxicology Research Group, Korea Institute of Toxicology, 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, Korea; (E.K.L.); (E.M.K.); (Y.N.K.); (C.H.S.)
| | - Kyung Jin Jung
- Immunotoxicology Research Group, Korea Institute of Toxicology, 141 Gajeong-ro, Yuseong-gu, Daejeon 34114, Korea; (E.K.L.); (E.M.K.); (Y.N.K.); (C.H.S.)
- Correspondence: ; Tel.: +82-42-610-8279; Fax: +82-42-610-8099
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Nie K, Zhang C, Deng M, Luo W, Ma K, Xu J, Wu X, Yang Y, Wang X. A Series of Genes for Predicting Responses to Anti-Tumor Necrosis Factor α Therapy in Crohn's Disease. Front Pharmacol 2022; 13:870796. [PMID: 35517818 PMCID: PMC9065476 DOI: 10.3389/fphar.2022.870796] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 03/21/2022] [Indexed: 12/25/2022] Open
Abstract
Background: Patients with Crohn's disease (CD) experience severely reduced quality of life, particularly those who do not respond to conventional therapies. Antitumor necrosis factor (TNF)α is commonly used as first-line therapy; however, many patients remain unresponsive to this treatment, and the identification of response predictors could facilitate the improvement of therapeutic strategies. Methods: We screened Gene Expression Omnibus (GEO) microarray cohorts with different anti-TNFα responses in patients with CD (discovery cohort) and explored the hub genes. The finding was confirmed in independent validation cohorts, and multiple algorithms and in vitro cellular models were performed to further validate the core predictor. Results: We screened four discovery datasets. Differentially expressed genes between anti-TNFα responders and nonresponders were confirmed in each cohort. Gene ontology enrichment revealed that innate immunity was involved in the anti-TNFα response in patients with CD. Prediction analysis of microarrays provided the minimum misclassification of genes, and the constructed network containing the hub genes supported the core status of TLR2. Furthermore, GSEA also supports TLR2 as the core predictor. The top hub genes were then validated in the validation cohort (GSE159034; p < 0.05). Furthermore, ROC analyses demonstrated the significant predictive value of TLR2 (AUC: 0.829), TREM1 (AUC: 0.844), and CXCR1 (AUC: 0.841). Moreover, TLR2 expression in monocytes affected the immune-epithelial inflammatory response and epithelial barrier during lipopolysaccharide-induced inflammation (p < 0.05). Conclusion: Bioinformatics and experimental research identified TLR2, TREM1, CXCR1, FPR1, and FPR2 as promising candidates for predicting the anti-TNFα response in patients with Crohn's disease and especially TLR2 as a core predictor.
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Affiliation(s)
- Kai Nie
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Chao Zhang
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Minzi Deng
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Weiwei Luo
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Kejia Ma
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Jiahao Xu
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Xing Wu
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Yuanyuan Yang
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Xiaoyan Wang
- Department of Gastroenterology, The Third Xiangya Hospital of Central South University, Changsha, China
- Hunan Key Laboratory of Nonresolving Inflammation and Cancer, Cancer Research Institute, Central South University, Changsha, China
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4
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Martínez-Ramos S, Rafael-Vidal C, Pego-Reigosa JM, García S. Monocytes and Macrophages in Spondyloarthritis: Functional Roles and Effects of Current Therapies. Cells 2022; 11:cells11030515. [PMID: 35159323 PMCID: PMC8834543 DOI: 10.3390/cells11030515] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/27/2022] [Accepted: 01/28/2022] [Indexed: 01/27/2023] Open
Abstract
Spondyloarthritis (SpA) is a family of chronic inflammatory diseases, being the most prevalent ankylosing spondylitis (AS) and psoriatic arthritis (PsA). These diseases share genetic, clinical and immunological features, such as the implication of human leukocyte antigen (HLA) class I molecule 27 (HLA-B27), the inflammation of peripheral, spine and sacroiliac joints and the presence of extra-articular manifestations (psoriasis, anterior uveitis, enthesitis and inflammatory bowel disease). Monocytes and macrophages are essential cells of the innate immune system and are the first line of defence against external agents. In rheumatic diseases including SpA, the frequency and phenotypic and functional characteristics of both cell types are deregulated and are involved in the pathogenesis of these diseases. In fact, monocytes and macrophages play key roles in the inflammatory processes characteristics of SpA. The aim of this review is analysing the characteristics and functional roles of monocytes and macrophages in these diseases, as well as the impact of different current therapies on these cell types.
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Affiliation(s)
- Sara Martínez-Ramos
- Rheumatology & Immuno-Mediated Diseases Research Group (IRIDIS), Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, 36312 Vigo, Spain; (S.M.-R.); (C.R.-V.); (J.M.P.-R.)
- Rheumatology Department, University Hospital Complex of Vigo, 36214 Vigo, Spain
| | - Carlos Rafael-Vidal
- Rheumatology & Immuno-Mediated Diseases Research Group (IRIDIS), Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, 36312 Vigo, Spain; (S.M.-R.); (C.R.-V.); (J.M.P.-R.)
- Rheumatology Department, University Hospital Complex of Vigo, 36214 Vigo, Spain
| | - José M. Pego-Reigosa
- Rheumatology & Immuno-Mediated Diseases Research Group (IRIDIS), Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, 36312 Vigo, Spain; (S.M.-R.); (C.R.-V.); (J.M.P.-R.)
- Rheumatology Department, University Hospital Complex of Vigo, 36214 Vigo, Spain
| | - Samuel García
- Rheumatology & Immuno-Mediated Diseases Research Group (IRIDIS), Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, 36312 Vigo, Spain; (S.M.-R.); (C.R.-V.); (J.M.P.-R.)
- Rheumatology Department, University Hospital Complex of Vigo, 36214 Vigo, Spain
- Correspondence: ; Tel.: +34-986-217-463
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5
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Toll-like Receptor 4, Osteoblasts and Leukemogenesis; the Lesson from Acute Myeloid Leukemia. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27030735. [PMID: 35163998 PMCID: PMC8838156 DOI: 10.3390/molecules27030735] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 01/13/2022] [Accepted: 01/19/2022] [Indexed: 12/29/2022]
Abstract
Toll-like receptor 4 (TLR4) is a pattern-recognizing receptor that can bind exogenous and endogenous ligands. It is expressed by acute myeloid leukemia (AML) cells, several bone marrow stromal cells, and nonleukemic cells involved in inflammation. TLR4 can bind a wide range of endogenous ligands that are present in the bone marrow microenvironment. Furthermore, the TLR4-expressing nonleukemic bone marrow cells include various mesenchymal cells, endothelial cells, differentiated myeloid cells, and inflammatory/immunocompetent cells. Osteoblasts are important stem cell supporting cells localized to the stem cell niches, and they support the proliferation and survival of primary AML cells. These supporting effects are mediated by the bidirectional crosstalk between AML cells and supportive osteoblasts through the local cytokine network. Finally, TLR4 is also important for the defense against complicating infections in neutropenic patients, and it seems to be involved in the regulation of inflammatory and immunological reactions in patients treated with allogeneic stem cell transplantation. Thus, TLR4 has direct effects on primary AML cells, and it has indirect effects on the leukemic cells through modulation of their supporting neighboring bone marrow stromal cells (i.e., modulation of stem cell niches, regulation of angiogenesis). Furthermore, in allotransplant recipients TLR4 can modulate inflammatory and potentially antileukemic immune reactivity. The use of TLR4 targeting as an antileukemic treatment will therefore depend both on the biology of the AML cells, the biological context of the AML cells, aging effects reflected both in the AML and the stromal cells and the additional antileukemic treatment combined with HSP90 inhibition.
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6
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Sakalyte R, Denkovskij J, Bernotiene E, Stropuviene S, Mikulenaite SO, Kvederas G, Porvaneckas N, Tutkus V, Venalis A, Butrimiene I. The Expression of Inflammasomes NLRP1 and NLRP3, Toll-Like Receptors, and Vitamin D Receptor in Synovial Fibroblasts From Patients With Different Types of Knee Arthritis. Front Immunol 2022; 12:767512. [PMID: 35126351 PMCID: PMC8807559 DOI: 10.3389/fimmu.2021.767512] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 12/22/2021] [Indexed: 12/27/2022] Open
Abstract
Activated rheumatoid arthritis (RA) synovial fibroblasts (SFs) are among the most important cells promoting RA pathogenesis. They are considered active contributors to the initiation, progression, and perpetuation of the disease; therefore, early detection of RASF activation could advance contemporary diagnosis and adequate treatment of undifferentiated early inflammatory arthritis (EA). In this study, we investigated the expression of nucleotide-binding, oligomerization domain (NOD)-like receptor family, pyrin domain containing (NLRP)1, NLRP3 inflammasomes, Toll-like receptor (TLR)1, TLR2, TLR4, vitamin D receptor (VDR), and secretion of matrix metalloproteinases (MMPs) in SFs isolated from patients with RA, osteoarthritis (OA), EA, and control individuals (CN) after knee surgical intervention. C-reactive protein, general blood test, anticyclic citrullinated peptide (anti-CCP), rheumatoid factor (RF), and vitamin D (vitD) in patients’ sera were performed. Cells were stimulated or not with 100 ng/ml tumor necrosis factor alpha (TNF-α) or/and 1 nM or/and 0.01 nM vitamin D3 for 72 h. The expression levels of NLRP1, NLRP3, TLR1, TLR2, TLR4, and VDR in all examined SFs were analyzed by quantitative real-time PCR (RT-qPCR). Additionally, the secretion of IL-1β by SFs and MMPs were determined by ELISA and Luminex technology. The expression of NLRP3 was correlated with the levels of CRP, RF, and anti-CCP, suggesting its implication in SF inflammatory activation. In the TNF-α-stimulated SFs, a significantly lower expression of NLRP3 and TLR4 was observed in the RA group, compared with the other tested forms of arthritis. Moreover, upregulation of NLRP3 expression by TNF-α alone or in combination with vitD3 was observed, further indicating involvement of NLRP3 in the inflammatory responses of SFs. Secretion of IL-1β was not detected in any sample, while TNF-α upregulated the levels of secreted MMP-1, MMP-7, MMP-8, MMP-12, and MMP-13 in all patient groups. Attenuating effects of vitD on the expression of NLRP3, TLR1, and TLR4 suggest potential protective effects of vitD on the inflammatory responses in SFs. However, longer studies may be needed to confirm or fully rule out the potential implication of vitD in SF activation in inflammatory arthritis. Both VDR and NLRP3 in the TNF-α-stimulated SFs negatively correlated with the age of patients, suggesting potential age-related changes in the local inflammatory responses.
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Affiliation(s)
- Regina Sakalyte
- The Clinic of Rheumatology, Traumatology Orthopaedics and Reconstructive Surgery, Institute of Clinical Medicine of the Faculty of Vilnius University, Vilnius, Lithuania
- State Research Institute Centre for Innovative Medicine, Department of Experimental, Preventative and Clinic Medicine, Vilnius, Lithuania
- *Correspondence: Regina Sakalyte,
| | - Jaroslav Denkovskij
- State Research Institute Centre for Innovative Medicine, Department of Regenerative Medicine, Vilnius, Lithuania
| | - Eiva Bernotiene
- State Research Institute Centre for Innovative Medicine, Department of Regenerative Medicine, Vilnius, Lithuania
- Department of Chemistry and Bioengineering, The Faculty of Fundamental Sciences, Vilnius Gediminas Technical University, Vilnius Tech, Vilnius, Lithuania
| | - Sigita Stropuviene
- The Clinic of Rheumatology, Traumatology Orthopaedics and Reconstructive Surgery, Institute of Clinical Medicine of the Faculty of Vilnius University, Vilnius, Lithuania
- State Research Institute Centre for Innovative Medicine, Department of Experimental, Preventative and Clinic Medicine, Vilnius, Lithuania
| | - Silvija Ona Mikulenaite
- State Research Institute Centre for Innovative Medicine, Department of Regenerative Medicine, Vilnius, Lithuania
| | - Giedrius Kvederas
- The Clinic of Rheumatology, Traumatology Orthopaedics and Reconstructive Surgery, Institute of Clinical Medicine of the Faculty of Vilnius University, Vilnius, Lithuania
| | - Narunas Porvaneckas
- The Clinic of Rheumatology, Traumatology Orthopaedics and Reconstructive Surgery, Institute of Clinical Medicine of the Faculty of Vilnius University, Vilnius, Lithuania
| | - Vytautas Tutkus
- Department of Anatomy, Histology and Anthropology, Institute of Biomedical Sciences, Faculty of Medicine, Vilnius University, Vilnius, Lithuania
| | - Algirdas Venalis
- The Clinic of Rheumatology, Traumatology Orthopaedics and Reconstructive Surgery, Institute of Clinical Medicine of the Faculty of Vilnius University, Vilnius, Lithuania
- State Research Institute Centre for Innovative Medicine, Department of Experimental, Preventative and Clinic Medicine, Vilnius, Lithuania
| | - Irena Butrimiene
- The Clinic of Rheumatology, Traumatology Orthopaedics and Reconstructive Surgery, Institute of Clinical Medicine of the Faculty of Vilnius University, Vilnius, Lithuania
- State Research Institute Centre for Innovative Medicine, Department of Experimental, Preventative and Clinic Medicine, Vilnius, Lithuania
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Targeting Toll-like Receptor (TLR) Pathways in Inflammatory Arthritis: Two Better Than One? Biomolecules 2021; 11:biom11091291. [PMID: 34572504 PMCID: PMC8464963 DOI: 10.3390/biom11091291] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 08/22/2021] [Accepted: 08/24/2021] [Indexed: 12/17/2022] Open
Abstract
Inflammatory arthritis is a cluster of diseases caused by unregulated activity of the immune system. The lost homeostasis is followed by the immune attack of one’s self, what damages healthy cells and tissues and leads to chronic inflammation of various tissues and organs (e.g., joints, lungs, heart, eyes). Different medications to control the excessive immune response are in use, however, drug resistances, flare-reactions and adverse effects to the current therapies are common in the affected patients. Thus, it is essential to broaden the spectrum of alternative treatments and to develop disease-modifying drugs. In the last 20 years, the involvement of the innate immune receptors TLRs in inflammatory arthritis has been widely investigated and targeting either the receptor itself or the proteins in the downstream signalling cascades has emerged as a promising therapeutic strategy. Yet, concerns about the use of pharmacological agents that inhibit TLR activity and may leave the host unprotected against invading pathogens and toxicity issues amid inhibition of downstream kinases crucial in various cellular functions have arisen. This review summarizes the existing knowledge on the role of TLRs in inflammatory arthritis; in addition, the likely druggable related targets and the developed inhibitors, and discusses the pros and cons of their potential clinical use.
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Unterberger S, Davies KA, Rambhatla SB, Sacre S. Contribution of Toll-Like Receptors and the NLRP3 Inflammasome in Rheumatoid Arthritis Pathophysiology. Immunotargets Ther 2021; 10:285-298. [PMID: 34350135 PMCID: PMC8326786 DOI: 10.2147/itt.s288547] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 07/15/2021] [Indexed: 12/20/2022] Open
Abstract
Rheumatoid arthritis (RA) is a progressive autoimmune disease that is characterized by inflammation of the synovial joints leading to cartilage and bone damage. The pathogenesis is sustained by the production of pro-inflammatory cytokines including tumor necrosis factor (TNF), interleukin (IL)-1 and IL-6, which can be targeted therapeutically to alleviate disease severity. Several innate immune receptors are suggested to contribute to the chronic inflammation in RA, through the production of pro-inflammatory factors in response to endogenous danger signals. Much research has focused on toll-like receptors and more recently the nucleotide-binding domain and leucine-rich repeat pyrin containing protein-3 (NLRP3) inflammasome, which is required for the processing and release of IL-1β. This review summarizes the current understanding of the potential involvement of these receptors in the initiation and maintenance of inflammation and tissue damage in RA and experimental arthritis models.
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Affiliation(s)
- Sarah Unterberger
- Brighton and Sussex Medical School, University of Sussex, Falmer, Brighton, BN1 9PS, UK
| | - Kevin A Davies
- Brighton and Sussex Medical School, University of Sussex, Falmer, Brighton, BN1 9PS, UK
| | | | - Sandra Sacre
- Brighton and Sussex Medical School, University of Sussex, Falmer, Brighton, BN1 9PS, UK
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9
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Fisher C, Ciurtin C, Leandro M, Sen D, Wedderburn LR. Similarities and Differences Between Juvenile and Adult Spondyloarthropathies. Front Med (Lausanne) 2021; 8:681621. [PMID: 34136509 PMCID: PMC8200411 DOI: 10.3389/fmed.2021.681621] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 04/26/2021] [Indexed: 12/17/2022] Open
Abstract
Spondyloarthritis (SpA) encompasses a broad spectrum of conditions occurring from childhood to middle age. Key features of SpA include axial and peripheral arthritis, enthesitis, extra-articular manifestations, and a strong association with HLA-B27. These features are common across the ages but there are important differences between juvenile and adult onset disease. Juvenile SpA predominantly affects the peripheral joints and the incidence of axial arthritis increases with age. Enthesitis is important in early disease. This review article highlights the similarities and differences between juvenile and adult SpA including classification, pathogenesis, clinical features, imaging, therapeutic strategies, and disease outcomes. In addition, the impact of the biological transition from childhood to adulthood is explored including the importance of musculoskeletal and immunological maturation. We discuss how the changes associated with adolescence may be important in explaining age-related differences in the clinical phenotype between juvenile and adult SpA and their implications for the treatment of juvenile SpA.
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Affiliation(s)
- Corinne Fisher
- Centre for Adolescent Rheumatology Versus Arthritis at University College London, University College London Hospital and Great Ormond Street Hospital, London, United Kingdom.,Department of Adolescent Rheumatology, University College London Hospitals NHS Foundation Trust, London, United Kingdom.,National Institute for Health Research University College London Hospitals Biomedical Research Centre, London, United Kingdom
| | - Coziana Ciurtin
- Centre for Adolescent Rheumatology Versus Arthritis at University College London, University College London Hospital and Great Ormond Street Hospital, London, United Kingdom.,Department of Adolescent Rheumatology, University College London Hospitals NHS Foundation Trust, London, United Kingdom.,Division of Medicine, Department of Rheumatology (Bloomsbury), University College London, London, United Kingdom
| | - Maria Leandro
- Centre for Adolescent Rheumatology Versus Arthritis at University College London, University College London Hospital and Great Ormond Street Hospital, London, United Kingdom.,Department of Adolescent Rheumatology, University College London Hospitals NHS Foundation Trust, London, United Kingdom.,Division of Medicine, Department of Rheumatology (Bloomsbury), University College London, London, United Kingdom
| | - Debajit Sen
- Centre for Adolescent Rheumatology Versus Arthritis at University College London, University College London Hospital and Great Ormond Street Hospital, London, United Kingdom.,Department of Adolescent Rheumatology, University College London Hospitals NHS Foundation Trust, London, United Kingdom.,National Institute for Health Research University College London Hospitals Biomedical Research Centre, London, United Kingdom
| | - Lucy R Wedderburn
- Centre for Adolescent Rheumatology Versus Arthritis at University College London, University College London Hospital and Great Ormond Street Hospital, London, United Kingdom.,National Institute for Health Research Biomedical Research Centre at Great Ormond Street Hospital for Children, London, United Kingdom.,Infection, Immunity & Inflammation Teaching and Research Department University College London Great Ormond Street Institute of Child Health, London, United Kingdom
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10
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van der Houwen TB, Dik WA, Goeijenbier M, Hayat M, Nagtzaam NMA, van Hagen M, van Laar JAM. Leukocyte toll-like receptor expression in pathergy positive and negative Behçet's disease patients. Rheumatology (Oxford) 2021; 59:3971-3979. [PMID: 32756992 PMCID: PMC7733715 DOI: 10.1093/rheumatology/keaa251] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 04/15/2020] [Indexed: 12/14/2022] Open
Abstract
Objectives To investigate whether the auto-inflammatory nature and the pathergic reaction in Behçet’s disease (BD) are driven by a disturbed toll-like receptor (TLR) response. Methods We compared both TLR expression by flow-cytometry and TLR response by stimulation assay in 18 BD patients (both pathergy positive and pathergy negative) with 15 healthy controls. Results Expression of TLR1 and 2 was significantly elevated in B-lymphocytes of BD patients compared with healthy controls. TLR1, 2 and 4 were significantly more highly expressed in both CD4+ and CD8+ T-lymphocytes of BD patients. Granulocytes of BD patients displayed significantly higher expression of TLR1, 2, 4 and 6. TLR2, 4 and 5 expression was significantly increased on classical monocytes of BD patients. Intermediate monocytes of BD patients showed an increase in expression of TLR2. Furthermore, TLR2 and 5 were significantly more highly expressed in non-classical monocytes of BD patients. In pathergy positive patients, TLR5 was even more highly expressed compared with pathergy negative patients on B- and T-lymphocytes and granulocytes. Furthermore, TLR2 and 5 showed an elevated TNF-α response to stimulation with their cognate ligands. Conclusion Immune cells of BD patients overexpress TLR1, 2, 4, 5 and 6. Furthermore, after stimulation of TLR2 and 5, BD patients demonstrate a more potent TNF-α response. Although this is a small cohort, in the pathergy positive patients, TLR5 expression is even further augmented, suggesting that a microbial (flagellin) or damage (HMGB1) associated signal may trigger the exaggerated immune response that is characteristic for the pathergy phenomenon in BD. In conclusion, these results point to an exaggerated TLR response in the auto-inflammatory nature of BD.
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Affiliation(s)
- Tim B van der Houwen
- Department of Internal Medicine, Section Clinical Immunology.,Department of Immunology
| | | | - Marco Goeijenbier
- Department of Viroscience, Erasmus University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Manizhah Hayat
- Department of Internal Medicine, Section Clinical Immunology
| | | | - Martin van Hagen
- Department of Internal Medicine, Section Clinical Immunology.,Department of Immunology
| | - Jan A M van Laar
- Department of Internal Medicine, Section Clinical Immunology.,Department of Immunology
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11
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Nasr S, Varshosaz J, Hajhashemi V. Ortho-vanillin nanoparticle-doped glucan microspheres exacerbate the anti-arthritic effects of methotrexate in adjuvant-induced arthritis in rats. Pharmacol Rep 2020; 72:680-691. [PMID: 32274768 DOI: 10.1007/s43440-020-00099-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 03/18/2020] [Accepted: 03/19/2020] [Indexed: 12/20/2022]
Abstract
BACKGROUND Methotrexate (MTX) commonly used in rheumatoid arthritis (RA) has severe adverse effects. Ortho-vanillin, an inhibitor of Toll-like receptors (TLR), can prevent inflammation. Glucan is a cereal fiber recognized by dectin-1 or β-glucan receptors of phagocytic macrophages. The purpose of the current project was to study the effect of co-administration of MTX and vanillin by targeted delivery to macrophages using β-glucan microspheres to reduce inflammation of RA. METHODS MTX and vanillin nanoparticles in bovine serum albumin (BSA) or gelatin were doped in glucan particles (GPs) and characterized for their physical properties. Twenty-four hours after induction of RA in paw of rats, they received normal saline (1 mg/kg, ip), MTX (2 mg/kg/week, ip), β-glucan (1 mg/kg/week, ip), GPs-MTX (2 mg/kg/week, ip), GPs-vanillin (200 mg/kg/day, po), and GPs-MTX (2 mg/kg/week, ip) plus GPs-vanillin (200 mg/kg/day, po). The last group received free MTX ip and vanillin po for 14 days. Then, joint diameters, TNF-α and IL-6, were evaluated in rats. RESULTS The particle size of the GPs was 5.3 µm. MTX loading efficiency in glucan microspheres was 64.5% and vanillin 44.2%. The microspheres released 88.7% of MTX and 95.1% of vanillin over 24 h. The results of in vivo studies showed a significant reduction in paw volume, TNF-α and IL-6 (p < 0.05) in animals treated with combination of MTX and vanillin-doped glucan microspheres compared to the mixture of the two drugs in free form or each drug alone. CONCLUSIONS Co-administration of MTX and vanillin-doped GPs may be more effective than MTX alone in RA.
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Affiliation(s)
- Shiva Nasr
- Novel Drug Delivery Systems Research Centre, Department of Pharmaceutics, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, PO Box 81745-359, Isfahan, Iran
| | - Jaleh Varshosaz
- Novel Drug Delivery Systems Research Centre, Department of Pharmaceutics, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, PO Box 81745-359, Isfahan, Iran.
| | - Valiolah Hajhashemi
- Department of Pharmacology and Toxicology, School of Pharmacy, Isfahan University of Medical Sciences, Isfahan, Iran
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12
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Romero-López JP, Gómez-Martínez D, Domínguez-López ML, Jiménez-Zamudio L, Casasola-Vargas JC, Burgos-Vargas R, García-Latorre E. Differential expression of TLR2 and TLR4 in α4β7-positive leukocytes of patients with axial spondyloarthritis. Rheumatology (Oxford) 2020; 59:879-888. [PMID: 31578573 DOI: 10.1093/rheumatology/kez364] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 07/16/2019] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVES Expression of α4β7 integrin can identify gut-homing immune cells. This study aimed to determine the expression of Toll-like receptor 2 (TLR2) and TLR4 in α4β7-positive leukocytes of patients with axial SpA (axSpA). METHODS We analysed the frequencies of α4β7-positive T cells, Tγδ cells and monocytes in 14 patients with axSpA and 14 healthy controls, together with the expression of TLR2 and TLR4 by flow cytometry. Also, the concentration of faecal calprotectin was measured in all patients and controls. RESULTS We found significantly higher percentages of α4β7-positive T (P = 0.026) and Tγδ cells (P = 0.0118) in the patients with axSpA than in controls; these cells showed differential expression of TLR2 and TLR4 when compared with α4β7-negative cells. Such differences were not correlated with disease activity or faecal calprotectin concentration. CONCLUSION There is an increase in circulating α4β7-positive T and Tγδ cells in patients with axSpA. These cells differentially express TLR2 and TLR4.
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Affiliation(s)
- José Pablo Romero-López
- Laboratorio de Inmunoquímica I, Posgrado en Ciencias Quimicobiológicas, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional
| | - David Gómez-Martínez
- Laboratorio de Inmunoquímica I, Posgrado en Ciencias Quimicobiológicas, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional
| | - María Lilia Domínguez-López
- Laboratorio de Inmunoquímica I, Posgrado en Ciencias Quimicobiológicas, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional
| | - Luis Jiménez-Zamudio
- Laboratorio de Inmunoquímica I, Posgrado en Ciencias Quimicobiológicas, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional
| | | | - Rubén Burgos-Vargas
- Departamento de Reumatología, Hospital General de México "Dr. Eduardo Liceaga," Ciudad de México, México
| | - Ethel García-Latorre
- Laboratorio de Inmunoquímica I, Posgrado en Ciencias Quimicobiológicas, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional
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Torres-Ruiz J, Carrillo-Vazquez DA, Padilla-Ortiz DM, Vazquez-Rodriguez R, Nuñez-Alvarez C, Juarez-Vega G, Gomez-Martin D. TLR expression in peripheral monocyte subsets of patients with idiopathic inflammatory myopathies: association with clinical and immunological features. J Transl Med 2020; 18:125. [PMID: 32164729 PMCID: PMC7066841 DOI: 10.1186/s12967-020-02290-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 03/04/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Monocytes and toll-like receptors (TLR) have been found in the inflammatory infiltrate of muscle biopsies in patients with idiopathic inflammatory myopathies (IIM), suggesting an important role of these cells in the pathogenesis of myositis. The monocyte subsets, their TLR expression in peripheral blood and their relationship with the clinical characteristics of patients with IIM has not been addressed. METHODS We recruited 45 patients with IIM diagnosis and 15 age and sex-adjusted healthy controls. We assessed the disease activity and damage, performed a nailfold capillaroscopy and registered the cardio-pulmonary parameters from the medical charts. Monocyte subsets, their expression of TLR2 and TLR4 and the serum Th1/Th2/Th17 cytokines levels were evaluated by flow cytometry. We expressed quantitative variables as medians and interquartile ranges (IQR) or minimum and maximum (min-max). Differences between groups were assessed with Mann-Whitney U and the Kruskal-Wallis tests. Correlation between quantitative variables was assessed with Spearman Rho. RESULTS Twenty-nine patients were women (64.4%) and 32 (71.1%) had dermatomyositis. In comparison to healthy controls, patients with active IIM had a higher percentage of intermediate monocytes and lower amounts of classical monocytes. Patients with IIM had a higher expression of TLR4 in all their monocyte subsets, regardless of disease activity and prednisone treatment. Serum IL-6 correlated with the TLR2 expression in every monocyte subset and the expression of TLR2 in intermediate monocytes was higher among patients with dysphagia. Subjects with nailfold capillaroscopy abnormalities had a higher amount of TLR2+ classical and non-classical monocytes and those with interstitial lung disease (ILD) had a higher percentage of TLR4+ non-classical monocytes. The classical and intermediate monocytes from patients with anti Mi2 antibodies had a higher expression of TLR4. The percentage of intermediate monocytes and the expression of TLR4 in all monocyte subsets showed a good diagnostic capacity in patients with IIM. CONCLUSION Patients with IIM have a differential pool of monocyte subsets with an enhanced expression of TLR2 and TLR4, which correlates with disease activity and distinctive clinical features including dysphagia, ILD, vasculopathy, and pro-inflammatory cytokines. These immunological features might be useful as a potential diagnostic tool as well as novel disease activity biomarkers in IIM.
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Affiliation(s)
- Jiram Torres-Ruiz
- Department of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico.,Emergency Medicine Department, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Daniel Alberto Carrillo-Vazquez
- Department of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Diana Marcela Padilla-Ortiz
- Department of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico.,Universidad de La Sabana, Hospital Militar Central, Bogotá, DC, Colombia
| | - Ricardo Vazquez-Rodriguez
- Department of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Carlos Nuñez-Alvarez
- Department of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Guillermo Juarez-Vega
- Flow Cytometry Unit, Red de Apoyo a la Investigación, Coordinación de Investigación Científica, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Diana Gomez-Martin
- Tecnologico de Monterrey, Escuela de Medicina y Ciencias de la Salud, Ave Morones Prieto 3000, 64710, Monterrey, Nuevo Leon, Mexico.
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Li Y, Huang L, Cai Z, Deng W, Wang P, Su H, Wu Y, Shen H. A Study of the Immunoregulatory Function of TLR3 and TLR4 on Mesenchymal Stem Cells in Ankylosing Spondylitis. Stem Cells Dev 2019; 28:1398-1412. [PMID: 31456484 DOI: 10.1089/scd.2019.0039] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Affiliation(s)
- Yuxi Li
- Department of Orthopedics and Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Lin Huang
- Department of Orthopedics and Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhaopeng Cai
- Department of Orthopedics, Sun Yat-sen University Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Wen Deng
- Center for Biotherapy, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Peng Wang
- Department of Orthopedics, Sun Yat-sen University Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
| | - Hongjun Su
- Center for Biotherapy, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yanfeng Wu
- Center for Biotherapy, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Huiyong Shen
- Department of Orthopedics, Sun Yat-sen University Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, China
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Zhang J, Xu R, Wu L, Jiang J. Expression and function of Toll‑like receptors in peripheral blood mononuclear cells in patients with ankylosing spondylitis. Mol Med Rep 2019; 20:3565-3572. [PMID: 31485664 PMCID: PMC6755152 DOI: 10.3892/mmr.2019.10631] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 05/29/2019] [Indexed: 12/11/2022] Open
Abstract
Ankylosing spondylitis (AS) is a common chronic inflammatory autoimmune disease. Toll‑like receptors (TLRs) are involved in non‑specific immunity. In the present study, the roles of TLRs in AS were investigated. The levels of inflammatory cytokines were detected by ELISA and reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR). The expression levels of TLRs and nuclear factor‑κB (NF‑κB) signaling‑associated factors were determined via RT‑qPCR and western blot analyses. It was observed that the levels of interleukin (IL)‑6, tumor necrosis factor‑α (TNF‑α), C‑reactive protein, TLR4 and TLR5 were increased in patients with AS, whereas those of IL‑10 and TLR3 were decreased. Pomalidomide, a TNF‑α release inhibitor, reduced the expression of IL‑6, TNF‑α, TLR4, TLR5 and phosphorylated‑p65, and upregulated that of IL‑10, TLR3 and p65 in peripheral blood mononuclear cells from patients with AS. Treatment of patients with infliximab, an anti‑TNF‑α monoclonal antibody, induced similar effects in vivo. In conclusion, it was revealed that inhibition of TNF‑α suppressed inflammatory responses in patients with AS, increased the expression of TLR3 and decreased NF‑κB signaling, and the expression of TLR4 and TLR5. The results indicated that TLRs and the NF‑κB signaling pathway were involved in the regulation of inflammatory responses in AS. These findings provided insight into the mechanisms underlying the development of AS and potential novel therapeutic approaches.
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Affiliation(s)
- Jun Zhang
- Department of Orthopedics, Mingzhou Hospital of Zhejiang University, Ningbo, Zhejiang 315000, P.R. China
| | - Rongming Xu
- Department of Orthopedics, Mingzhou Hospital of Zhejiang University, Ningbo, Zhejiang 315000, P.R. China
| | - Lei Wu
- Department of Orthopedics, Mingzhou Hospital of Zhejiang University, Ningbo, Zhejiang 315000, P.R. China
| | - Jihong Jiang
- Department of Orthopedics, Mingzhou Hospital of Zhejiang University, Ningbo, Zhejiang 315000, P.R. China
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Understanding the hidden relations between pro- and anti-inflammatory cytokine genes in bovine oviduct epithelium using a multilayer response surface method. Sci Rep 2019; 9:3189. [PMID: 30816156 PMCID: PMC6395797 DOI: 10.1038/s41598-019-39081-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 01/18/2019] [Indexed: 02/06/2023] Open
Abstract
An understanding gene-gene interaction helps users to design the next experiments efficiently and (if applicable) to make a better decision of drugs application based on the different biological conditions of the patients. This study aimed to identify changes in the hidden relationships between pro- and anti-inflammatory cytokine genes in the bovine oviduct epithelial cells (BOECs) under various experimental conditions using a multilayer response surface method. It was noted that under physiological conditions (BOECs with sperm or sex hormones, such as ovarian sex steroids and LH), the mRNA expressions of IL10, IL1B, TNFA, TLR4, and TNFA were associated with IL1B, TNFA, TLR4, IL4, and IL10, respectively. Under pathophysiological + physiological conditions (BOECs with lipopolysaccharide + hormones, alpha-1-acid glycoprotein + hormones, zearalenone + hormones, or urea + hormones), the relationship among genes was changed. For example, the expression of IL10 and TNFA was associated with (IL1B, TNFA, or IL4) and TLR4 expression, respectively. Furthermore, under physiological conditions, the co-expression of IL10 + TNFA, TLR4 + IL4, TNFA + IL4, TNFA + IL4, or IL10 + IL1B and under pathophysiological + physiological conditions, the co-expression of IL10 + IL4, IL4 + IL10, TNFA + IL10, TNFA + TLR4, or IL10 + IL1B were associated with IL1B, TNFA, TLR4, IL10, or IL4 expression, respectively. Collectively, the relationships between pro- and anti-inflammatory cytokine genes can be changed with respect to the presence/absence of toxins, sex hormones, sperm, and co-expression of other gene pairs in BOECs, suggesting that considerable cautions are needed in interpreting the results obtained from such narrowly focused in vitro studies.
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Vanaki N, Aslani S, Jamshidi A, Mahmoudi M. Role of innate immune system in the pathogenesis of ankylosing spondylitis. Biomed Pharmacother 2018; 105:130-143. [DOI: 10.1016/j.biopha.2018.05.097] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 05/19/2018] [Accepted: 05/20/2018] [Indexed: 12/11/2022] Open
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Systemic Inflammatory Response and Atherosclerosis: The Paradigm of Chronic Inflammatory Rheumatic Diseases. Int J Mol Sci 2018; 19:ijms19071890. [PMID: 29954107 PMCID: PMC6073407 DOI: 10.3390/ijms19071890] [Citation(s) in RCA: 111] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 06/17/2018] [Accepted: 06/20/2018] [Indexed: 12/17/2022] Open
Abstract
Patients with Chronic Inflammatory Rheumatic diseases (CIRD) are at increased risk of cardiovascular disease (CVD), ascribed not only to classical risk factors, but also to the presence of chronic systemic inflammatory response. Αtherosclerosis, the cornerstone of CVD, is known to be accelerated in CIRD; rheumatoid arthritis promotes atheromatosis and associates with preclinical atherosclerosis equivalent to Diabetes Mellitus, which also seems to apply for systemic lupus erythematosus. Data on ankylosing spondylitis and psoriatic arthritis, albeit more limited, also support an increased CV risk in these patients. The association between inflammation and atherosclerosis, has been thoroughly investigated in the last three decades and the role of inflammation in the pathogenesis and progression of atherogenesis has been well established. Endothelial dysfunction, oxidative stress in vascular endothelial cells and macrophage accumulation, toll-like receptor signaling, NLPR-3 formation and subsequent pro-inflammatory cytokine production, such as TNFa, IL-1β, IL-6, and TNF-like cytokine 1A, are few of the mechanisms implicated in the atherogenic process. Moreover, there is evidence that anti-inflammatory biologic drugs, such as anti-TNF and anti-IL1β agents, can decelerate the atherogenic process, thus setting new therapeutic targets for early and effective disease control and suppression of inflammation, in addition to aggressive management of classical CV risk factors.
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Zarringhalam K, Degras D, Brockel C, Ziemek D. Robust phenotype prediction from gene expression data using differential shrinkage of co-regulated genes. Sci Rep 2018; 8:1237. [PMID: 29352257 PMCID: PMC5775343 DOI: 10.1038/s41598-018-19635-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 12/15/2017] [Indexed: 12/13/2022] Open
Abstract
Discovery of robust diagnostic or prognostic biomarkers is a key to optimizing therapeutic benefit for select patient cohorts - an idea commonly referred to as precision medicine. Most discovery studies to derive such markers from high-dimensional transcriptomics datasets are weakly powered with sample sizes in the tens of patients. Therefore, highly regularized statistical approaches are essential to making generalizable predictions. At the same time, prior knowledge-driven approaches have been successfully applied to the manual interpretation of high-dimensional transcriptomics datasets. In this work, we assess the impact of combining two orthogonal approaches for the discovery of biomarker signatures, namely (1) well-known lasso-based regression approaches and its more recent derivative, the group lasso, and (2) the discovery of significant upstream regulators in literature-derived biological networks. Our method integrates both approaches in a weighted group-lasso model and differentially weights gene sets based on inferred active regulatory mechanism. Using nested cross-validation as well as independent clinical datasets, we demonstrate that our approach leads to increased accuracy and generalizable results. We implement our approach in a computationally efficient, user-friendly R package called creNET. The package can be downloaded at https://github.com/kouroshz/creNethttps://github.com/kouroshz/creNet and is accompanied by a parsed version of the STRING DB data base.
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Affiliation(s)
- Kourosh Zarringhalam
- Department of Mathematics, University of Massachusetts Boston, Boston, MA, 02125, USA
| | - David Degras
- Department of Mathematics, University of Massachusetts Boston, Boston, MA, 02125, USA
| | - Christoph Brockel
- Computational Sciences, Pfizer Worldwide Research & Development, Cambridge, MA, 02139, USA
| | - Daniel Ziemek
- Computational Sciences, Pfizer Worldwide Research & Development, Cambridge, MA, 02139, USA.
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Upadhyay J, Geber C, Hargreaves R, Birklein F, Borsook D. A critical evaluation of validity and utility of translational imaging in pain and analgesia: Utilizing functional imaging to enhance the process. Neurosci Biobehav Rev 2018; 84:407-423. [PMID: 28807753 PMCID: PMC5729102 DOI: 10.1016/j.neubiorev.2017.08.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 05/22/2017] [Accepted: 08/04/2017] [Indexed: 02/07/2023]
Abstract
Assessing clinical pain and metrics related to function or quality of life predominantly relies on patient reported subjective measures. These outcome measures are generally not applicable to the preclinical setting where early signs pointing to analgesic value of a therapy are sought, thus introducing difficulties in animal to human translation in pain research. Evaluating brain function in patients and respective animal model(s) has the potential to characterize mechanisms associated with pain or pain-related phenotypes and thereby provide a means of laboratory to clinic translation. This review summarizes the progress made towards understanding of brain function in clinical and preclinical pain states elucidated using an imaging approach as well as the current level of validity of translational pain imaging. We hypothesize that neuroimaging can describe the central representation of pain or pain phenotypes and yields a basis for the development and selection of clinically relevant animal assays. This approach may increase the probability of finding meaningful new analgesics that can help satisfy the significant unmet medical needs of patients.
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Affiliation(s)
| | - Christian Geber
- Department of Neurology, University Medical Centre Mainz, Mainz, Germany; DRK Schmerz-Zentrum Mainz, Mainz, Germany
| | - Richard Hargreaves
- Center for Pain and the Brain, United States; Department of Anesthesiology, Perioperative and Pain Medicine, Boston Children's Hospital, Boston Harvard Medical School, Boston, MA 02115, United States
| | - Frank Birklein
- Department of Neurology, University Medical Centre Mainz, Mainz, Germany
| | - David Borsook
- Center for Pain and the Brain, United States; Department of Anesthesiology, Perioperative and Pain Medicine, Boston Children's Hospital, Boston Harvard Medical School, Boston, MA 02115, United States.
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Krajewska-Włodarczyk M, Owczarczyk-Saczonek A, Placek W, Osowski A, Engelgardt P, Wojtkiewicz J. Role of Stem Cells in Pathophysiology and Therapy of Spondyloarthropathies-New Therapeutic Possibilities? Int J Mol Sci 2017; 19:ijms19010080. [PMID: 29283375 PMCID: PMC5796030 DOI: 10.3390/ijms19010080] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Revised: 12/23/2017] [Accepted: 12/25/2017] [Indexed: 12/14/2022] Open
Abstract
Considerable progress has been made recently in understanding the complex pathogenesis and treatment of spondyloarthropathies (SpA). Currently, along with traditional disease modifying anti-rheumatic drugs (DMARDs), TNF-α, IL-12/23 and IL-17 are available for treatment of such diseases as ankylosing spondylitis (AS) and psoriatic arthritis (PsA). Although they adequately control inflammatory symptoms, they do not affect the abnormal bone formation processes associated with SpA. However, the traditional therapeutic approach does not cover the regenerative treatment of damaged tissues. In this regards, stem cells may offer a promising, safe and effective therapeutic option. The aim of this paper is to present the role of mesenchymal stromal cells (MSC) in pathogenesis of SpA and to highlight the opportunities for using stem cells in regenerative processes and in the treatment of inflammatory changes in articular structures.
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Affiliation(s)
- Magdalena Krajewska-Włodarczyk
- Department of Rheumatology, Municipal Hospital in Olsztyn, 10-900 Olsztyn, Poland.
- Department of Pathophysiology, Faculty of Medicine, University of Warmia and Mazury, 10-900 Olsztyn, Poland.
| | - Agnieszka Owczarczyk-Saczonek
- Department of Dermatology, Sexually Transmitted Diseases and Clinical Immunology, Faculty of Medicine, University of Warmia and Mazury, 10-900 Olsztyn, Poland.
| | - Waldemar Placek
- Department of Dermatology, Sexually Transmitted Diseases and Clinical Immunology, Faculty of Medicine, University of Warmia and Mazury, 10-900 Olsztyn, Poland.
| | - Adam Osowski
- Department of Pathophysiology, Faculty of Medicine, University of Warmia and Mazury, 10-900 Olsztyn, Poland.
| | - Piotr Engelgardt
- Department of Forensic Medicine, Faculty of Medicine, University of Warmia and Mazury, 10-900 Olsztyn, Poland.
| | - Joanna Wojtkiewicz
- Department of Pathophysiology, Faculty of Medicine, University of Warmia and Mazury, 10-900 Olsztyn, Poland.
- Laboratory for Regenerative Medicine, Faculty of Medicine, University of Warmia and Mazury, 10-900 Olsztyn, Poland.
- Foundation for Nerve Cell Regeneration, University of Warmia and Mazury in Olsztyn, 10-900 Olsztyn, Poland.
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Sargın B, Akbal A, Resorlu H, Savaş Y, Zateri C, Sılan F, Özdemir Ö. The frequency of toll-like receptor 4 gene polymorphism in ankylosing spondylitis and its relationship between disease activity. ACTA ACUST UNITED AC 2017. [DOI: 10.18621/eurj.346968] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Kragstrup TW, Andersen MN, Schiøttz-Christensen B, Jurik AG, Hvid M, Deleuran B. Increased interleukin (IL)-20 and IL-24 target osteoblasts and synovial monocytes in spondyloarthritis. Clin Exp Immunol 2017; 189:342-351. [PMID: 28369789 DOI: 10.1111/cei.12973] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/24/2017] [Indexed: 12/12/2022] Open
Abstract
The pathogenesis of spondyloarthritis (SpA) involves activation of the innate immune system, inflammation and new bone formation. The two cytokines interleukin (IL)-20 and IL-24 have been shown to link innate immune activation and tissue homeostasis. We hypothesized that these two cytokines are secreted as part of activation of the innate immune system and affect bone homeostasis in SpA. IL-20 and IL-24 were measured in plasma from axial SpA patients (n = 83). Peripheral SpA patients (n = 16) were included for in-vitro cell culture studies. The plasma IL-20 and IL-24 levels were increased in SpA patients compared with healthy controls (HCs) by 57 and 83%, respectively (both P < 0·0001). The Toll-like receptor 4-induced secretion of the two cytokines was greater in SpA peripheral blood mononuclear cells (PBMCs) compared with HC PBMCs. IL-20 and IL-24 increased the production of monocyte chemoattractant protein-1 by activated SpA synovial fluid monocytes, decreased the production of Dickkopf-1 by SpA fibroblast-like synovial cells and induced mineralization in human osteoblasts. Taken together, our findings indicate disease-aggravating functions of IL-20 and IL-24 in SpA.
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Affiliation(s)
- T W Kragstrup
- Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Department of Rheumatology, Aarhus University Hospital, Aarhus, Denmark
| | - M N Andersen
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - B Schiøttz-Christensen
- Spine Centre of Southern Denmark, Hospital Lillebaelt, Middelfart, Denmark.,Institute of Regional Health Services Research, University of Southern Denmark, Odense, Denmark
| | - A G Jurik
- Department of Radiology, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - M Hvid
- Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - B Deleuran
- Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Department of Rheumatology, Aarhus University Hospital, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
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Características clínicas e frequência de polimorfismos em TLR4 em pacientes brasileiros com espondilite anquilosante. REVISTA BRASILEIRA DE REUMATOLOGIA 2016. [DOI: 10.1016/j.rbr.2016.05.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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25
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Machado NP, Nogueira E, Oseki K, Ebbing PCC, Origassa CST, Mohovic T, Câmara NOS, Pinheiro MDM. Clinical characteristics and frequency of TLR4 polymorphisms in Brazilian patients with ankylosing spondylitis. ACTA ACUST UNITED AC 2016; 56:432-440. [DOI: 10.1016/j.rbre.2016.07.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Accepted: 05/01/2016] [Indexed: 12/22/2022]
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26
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Park R, Kim TH, Ji JD. Gene Expression Profile in Patients with Axial Spondyloarthritis: Meta-analysis of Publicly Accessible Microarray Datasets. JOURNAL OF RHEUMATIC DISEASES 2016. [DOI: 10.4078/jrd.2016.23.6.363] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Robin Park
- Division of Rheumatology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
| | - Tae-Hwan Kim
- Division of Rheumatology, Department of Internal Medicine, Hanyang University Hospital for Rheumatic Diseases, Seoul, Korea
| | - Jong Dae Ji
- Division of Rheumatology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea
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Conrad K, Wu P, Sieper J, Syrbe U. In vivo pre-activation of monocytes in patients with axial spondyloarthritis. Arthritis Res Ther 2015; 17:179. [PMID: 26178906 PMCID: PMC4504100 DOI: 10.1186/s13075-015-0694-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Accepted: 06/19/2015] [Indexed: 01/15/2023] Open
Abstract
Introduction Innate immune responses, including monocyte functions, seem to play an important role in the pathogenesis of axial spondyloarthritis (axSpA). Therefore, we characterized the phenotype and functional state of monocytes of patients with axSpA. Methods Fifty-seven patients with axSpA, 11 patients with rheumatoid arthritis (RA), and 29 healthy controls were included in the study. We determined the percentage of classic, intermediate, and non-classic monocytes according to CD14 and CD16 expression and the expression of Toll-like receptor (TLR) 1, 2, and 4 in whole blood by flow cytometry. The percentage of monocytes producing interleukin (IL)-1beta, IL-6, tumor necrosis factor alpha (TNFα), IL-12/23p40, and IL-1 receptor antagonist (IL-1ra) was detected by flow cytometry after stimulation of whole blood without and with different TLR and nucleotide-binding oligomerization domain ligands—i.e., lipopolysaccharide (LPS), fibroblast-stimulating lipopeptid-1, PAM3CSK4, and muramyl dipeptide (MDP)—for 5 h. IL-10 production was measured after 18 h of stimulation in supernatants by enzyme-linked immunosorbent assay. Results In patients with axSpA but not patients with RA, we found higher frequencies of classic monocytes than in controls (median of 90.4 % versus 80.4 %, P < 0.05), higher frequencies of monocytes spontaneously producing IL-1beta and IL-1ra (P < 0.05), and a higher percentage of monocytes producing IL-1beta after MDP stimulation (P < 0.05). Elevated cytokine production was confined to axSpA patients under conventional therapy (non-steroidal anti-inflammatory drugs) and not found in patients under TNFα inhibitor treatment. The LPS-induced production of IL-6 and IL-10 was lower in axSpA patients compared with controls (P < 0.05). Monocytic TLR expression was unaffected in patients with axSpA. Conclusion Enhanced spontaneous and MDP-induced cytokine secretion by monocytes suggests in vivo pre-activation of monocytes in axSpA patients under conventional therapy which is reverted under TNF inhibitor treatment.
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Affiliation(s)
- Kristina Conrad
- Charité-Universitätsmedizin Berlin, CBF, Medizinische Klinik für Gastroenterologie, Infektiologie und Rheumatologie, Hindenburgdamm 30, Berlin, 12203, Germany.
| | - Peihua Wu
- Deutsches Rheumaforschungszentrum, Charitéplatz 1, Berlin, 10117, Germany.
| | - Joachim Sieper
- Charité-Universitätsmedizin Berlin, CBF, Medizinische Klinik für Gastroenterologie, Infektiologie und Rheumatologie, Hindenburgdamm 30, Berlin, 12203, Germany. .,Deutsches Rheumaforschungszentrum, Charitéplatz 1, Berlin, 10117, Germany.
| | - Uta Syrbe
- Charité-Universitätsmedizin Berlin, CBF, Medizinische Klinik für Gastroenterologie, Infektiologie und Rheumatologie, Hindenburgdamm 30, Berlin, 12203, Germany. .,Deutsches Rheumaforschungszentrum, Charitéplatz 1, Berlin, 10117, Germany.
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Kragstrup TW, Andersen T, Holm C, Schiøttz-Christensen B, Jurik AG, Hvid M, Deleuran B. Toll-like receptor 2 and 4 induced interleukin-19 dampens immune reactions and associates inversely with spondyloarthritis disease activity. Clin Exp Immunol 2015; 180:233-42. [PMID: 25639337 DOI: 10.1111/cei.12577] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/20/2014] [Indexed: 12/27/2022] Open
Abstract
Spondyloarthritis (SpA) is a group of immune mediated inflammatory diseases affecting joints, gut, skin and entheses. The inflammatory process involves activation of Toll-like receptor (TLR)-2 and TLR-4 and production of cytokines and chemokines such as monocyte chemoattractant protein 1 (CCL2/MCP-1). This proinflammatory chemokine recruits monocytes to sites of inflammation and is central in the development of several immune-mediated inflammatory diseases. Interleukin (IL)-19 is a member of the IL-10 family of cytokines. IL-19-deficient mice are more susceptible to innate-mediated colitis and develop more severe inflammation in response to injury. In this work, we studied inducers of IL-19 production and effect of IL-19 on the production of CCL2/MCP-1 and proinflammatory cytokines in peripheral blood mononuclear cells (PBMCs) from healthy controls (HCs) and in PBMCs and synovial fluid mononuclear cells (SFMCs) from SpA patients. Further, we measured IL-19 in plasma from HCs and in plasma and synovial fluid from SpA patients. Constitutive IL-19 expression was present in both PBMCs and SFMCs and the secretion of IL-19 was increased by TLR-2 and TLR-4 ligands. Neutralizing IL-19 in HC PBMCs and SpA SFMCs resulted in increased production of CCL-2/MCP-1. IL-19 concentrations were decreased in synovial fluid compared with plasma and associated inversely with disease activity in SpA. SpA SFMCs produced less IL-19 in response to LPS compared with HC PBMCs. These findings indicate that IL-19 production is diminished in SpA. Taken together, impaired IL-19 control of the innate immune system might be involved in the pathogenesis of SpA.
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Affiliation(s)
- T W Kragstrup
- Department of Biomedicine, Aarhus University, Aarhus, Denmark; Department of Rheumatology, Aarhus University Hospital, Aarhus, Denmark
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Single nucleotide polymorphism of toll-like receptor 4 (TLR4) is associated with juvenile spondyloarthritis in Croatian population. Clin Rheumatol 2015; 34:2079-86. [DOI: 10.1007/s10067-015-2952-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 04/21/2015] [Accepted: 04/21/2015] [Indexed: 02/04/2023]
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Xu HY, Wang ZY, Chen JF, Wang TY, Wang LL, Tang LL, Lin XY, Zhang CW, Chen BC. Association between ankylosing spondylitis and the miR-146a and miR-499 polymorphisms. PLoS One 2015; 10:e0122055. [PMID: 25836258 PMCID: PMC4383612 DOI: 10.1371/journal.pone.0122055] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Accepted: 02/06/2015] [Indexed: 01/07/2023] Open
Abstract
miRNAs are small, non-coding RNAs that regulate the expression of multiple target genes at the post-transcriptional level. Single-nucleotide polymorphisms (SNPs) in miRNA sequences may alter miRNA expression and have been implicated in the pathogenesis of multiple forms of arthritis, including rheumatoid arthritis (RA) and osteoarthritis. The present study explored the association between ankylosing spondylitis (AS) and two single nucleotide polymorphisms (SNPs), miR-146a rs2910164G>C and miR-499 rs3746444T>C, in a Han Chinese population. A case-control study consisting of 102 subjects with AS and 105 healthy controls was designed. The two miRNA SNPs were identified by direct sequencing. Subsequently, their gene and genotype frequencies were compared with healthy controls. A significant difference was observed in the miR-146a rs2910164G>C SNP. The frequency of the G allele was markedly higher in the AS patients than in the healthy controls (P = 0.005, Pc = 0.01, OR = 1.787), and the frequency of the GG genotype was higher in AS patients than in controls (P = 0.014, Pc = 0.042, OR = 2.516). However, no significant association was found between the miR-499 rs3746444T>C variant and susceptibility to AS. This is the first study to address the association between the miR-146a rs2910164G>C and miR-499 rs3746444T>C polymorphisms and AS, and it suggests a potential pathogenic factor for AS. Further studies are needed to validate our findings in a larger series, as well as in other ethnic backgrounds.
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Affiliation(s)
- Hui Ying Xu
- Key Laboratory of Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Zhang Yang Wang
- Key Laboratory of Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Jing Feng Chen
- Department of Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Tian Yang Wang
- Department of Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Ling Ling Wang
- Key Laboratory of Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Li Li Tang
- Key Laboratory of Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Xian-yang Lin
- Injury Orthopaedics of Traditional Chinese medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Chun-wu Zhang
- Injury Orthopaedics of Traditional Chinese medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
- * E-mail:
| | - Bi-cheng Chen
- Key Laboratory of Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
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31
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Baeten D. Etiology, pathogenesis, and pathophysiology of ankylosing spondylitis. Rheumatology (Oxford) 2015. [DOI: 10.1016/b978-0-323-09138-1.00115-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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32
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Follistatin alleviates synovitis and articular cartilage degeneration induced by carrageenan. Int J Inflam 2014; 2014:959271. [PMID: 25574420 PMCID: PMC4276300 DOI: 10.1155/2014/959271] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Revised: 11/06/2014] [Accepted: 11/19/2014] [Indexed: 12/23/2022] Open
Abstract
Activins are proinflammatory cytokines which belong to the TGFβ superfamily. Follistatin is an extracellular decoy receptor for activins. Since both activins and follistatin are expressed in articular cartilage, we hypothesized that activin-follistatin signaling participates in the process of joint inflammation and cartilage degeneration. To test this hypothesis, we examined the effects of follistatin in a carrageenan-induced mouse arthritis model. Synovitis induced by intra-articular injection of carrageenan was significantly alleviated by preinjection with follistatin. Macrophage infiltration into the synovial membrane was significantly reduced in the presence of follistatin. In addition, follistatin inhibited proteoglycan erosion induced by carrageenan in articular cartilage. These data indicate that activin-follistatin signaling is involved in joint inflammation and cartilage homeostasis. Our data suggest that follistatin can be a new therapeutic target for inflammation-induced articular cartilage degeneration.
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33
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Suurmond J, Rivellese F, Dorjée AL, Bakker AM, Rombouts YJPC, Rispens T, Wolbink G, Zaldumbide A, Hoeben RC, Huizinga TWJ, Toes REM. Toll-like receptor triggering augments activation of human mast cells by anti-citrullinated protein antibodies. Ann Rheum Dis 2014; 74:1915-23. [PMID: 24818634 DOI: 10.1136/annrheumdis-2014-205562] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Accepted: 04/17/2014] [Indexed: 11/04/2022]
Abstract
OBJECTIVE Mast cells may play a role in rheumatoid arthritis (RA), but activation of human mast cells in autoimmune settings has been little studied. Toll-like receptors (TLR) and Fcγ receptors (FcγR) are important receptors for cellular activation in the joint, but expression and stimulation of these receptors in human mast cells or the functional interplay between these pathways is poorly understood. Here, we analysed triggering of human mast cells via these receptors in the context of anti-citrullinated protein antibody-positive (ACPA+) RA. METHODS RNA and protein expression of TLRs and FcγR was quantified using PCR and flow cytometry, respectively. Mast cells were stimulated with TLR ligands (including HSP70) combined with IgG immune complexes and IgG-ACPA. RESULTS Human mast cells expressed TLRs and produced cytokines in response to TLR ligands. Both cultured and synovial mast cells expressed FcγRIIA, and triggering of this receptor by IgG immune complexes synergised with activation by TLR ligands, leading to two- to fivefold increased cytokine levels. Mast cells produced cytokines in response to ACPA immune complexes in a citrulline-specific manner, which synergised in the presence of HSP70. CONCLUSIONS Our data show that synovial mast cells express FcγRIIA and that mast cells can be activated by IgG-ACPA and TLR ligands. Importantly, combined stimulation via TLRs and immune complexes leads to synergy in cytokine production. These findings suggest mast cells are important targets for TLR ligands and immune complexes, and that combined activation of mast cells via these pathways greatly enhances inflammation in synovial tissue of RA patients.
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Affiliation(s)
- J Suurmond
- Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands
| | - F Rivellese
- Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands
| | - A L Dorjée
- Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands
| | - A M Bakker
- Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands
| | - Y J P C Rombouts
- Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands Center for Proteomics and Metabolomics, Leiden University Medical Center, Leiden, The Netherlands
| | - T Rispens
- Sanquin Research and Landsteiner Laboratorium, Academic Medical Center, Amsterdam, The Netherlands
| | - G Wolbink
- Sanquin Research and Landsteiner Laboratorium, Academic Medical Center, Amsterdam, The Netherlands
| | - A Zaldumbide
- Department of Molecular Cell Biology, Leiden University Medical Center, Leiden, The Netherlands
| | - R C Hoeben
- Department of Molecular Cell Biology, Leiden University Medical Center, Leiden, The Netherlands
| | - T W J Huizinga
- Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands
| | - R E M Toes
- Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands
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Lai NS, Yu HC, Chen HC, Yu CL, Huang HB, Lu MC. Aberrant expression of microRNAs in T cells from patients with ankylosing spondylitis contributes to the immunopathogenesis. Clin Exp Immunol 2013; 173:47-57. [PMID: 23607629 DOI: 10.1111/cei.12089] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/04/2013] [Indexed: 12/31/2022] Open
Abstract
Ankylosing spondylitis (AS) is a chronic inflammatory disorder characterized by dysregulated T cells. We hypothesized that the aberrant expression of microRNAs (miRNAs) in AS T cells involved in the pathogenesis of AS. The expression profile of 270 miRNAs in T cells from five AS patients and five healthy controls were analysed by real-time polymerase chain reaction (PCR). Thirteen miRNAs were found potentially differential expression. After validation, we confirmed that miR-16, miR-221 and let-7i were over-expressed in AS T cells and the expression of miR-221 and let-7i were correlated positively with the Bath Ankylosing Spondylitis Radiology Index (BASRI) of lumbar spine in AS patients. The protein molecules regulated by miR-16, miR-221 and let-7i were measured by Western blotting. We found that the protein levels of Toll-like receptor-4 (TLR-4), a target of let-7i, in T cells from AS patients were decreased. In addition, the mRNA expression of interferon (IFN)-γ was elevated in AS T cells. Lipopolysaccharide (LPS), a TLR-4 agonist, inhibited IFN-γ secretion by anti-CD3(+) anti-CD28 antibodies-stimulated normal T cells but not AS T cells. In the transfection studies, we found the increased expression of let-7i enhanced IFN-γ production by anti-CD3(+) anti-CD28(+) lipopolysaccharide (LPS)-stimulated normal T cells. In contrast, the decreased expression of let-7i suppressed IFN-γ production by anti-CD3(+) anti-CD28(+) LPS-stimulated AS T cells. In conclusion, we found that miR-16, miR-221 and let-7i were over-expressed in AS T cells, but only miR-221 and let-7i were associated with BASRI of lumbar spine. In the functional studies, the increased let-7i expression facilitated the T helper type 1 (IFN-γ) immune response in T cells.
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Affiliation(s)
- N-S Lai
- Division of Allergy, Immunology and Rheumatology, Buddhist Dalin Tzu Chi General Hospital, Taiwan
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Wara-aswapati N, Chayasadom A, Surarit R, Pitiphat W, Boch JA, Nagasawa T, Ishikawa I, Izumi Y. Induction of Toll-Like Receptor Expression by Porphyromonas gingivalis. J Periodontol 2013; 84:1010-8. [DOI: 10.1902/jop.2012.120362] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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How to translate basic knowledge into clinical application of biologic therapy in spondyloarthritis. Clin Dev Immunol 2013; 2013:369202. [PMID: 23840241 PMCID: PMC3693102 DOI: 10.1155/2013/369202] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2012] [Accepted: 05/24/2013] [Indexed: 01/08/2023]
Abstract
Spondyloarthritis (SpA) is a family of many diseases, and these diseases share some clinical, genetic, and radiologic features. The disease process in the spine at the beginning is spinal inflammation, in which TNFα is the principal cytokine involved. Therefore, the dramatic clinical and pathologic response of anti-TNFα therapy in SpA is based upon the presence of increased TNFα in synovial tissues and sacroiliac joints, which perpetuates chronic inflammation. The increased Toll-like receptors (TCR) 2 and 4 in the serum, peripheral blood mononuclear cells, or synovial tissues of ankylosing spondyloarthritis (AS) or SpA patients suggest that SpA is highly associated with innate immunity. Any drug including anti-TNFα blocker which can downregulate the TCR, infiltrated neutrophils, or CD163+ macrophages in the synovial tissue is the rationale for the management of SpA. Like rheumatoid arthritis, the increased TH22 and TH17 cells either in blood, synovial fluid, or synovial tissues were also demonstrated in SpA. Thus, TH17 and TH22 may be reasonable cellular targets for therapeutic intervention. Drugs (anti-IL6R or anti-IL6) which can reduce the binding of IL6 and IL6R to the cell surface may be beneficial in SpA. Many proteins are implicated in the new bone formation (syndesmophyte) or ankylosis in AS or SpA. The enhanced BMP and Wnt pathway will activate osteoblasts which promote the new bone formation. However, no drug including anti-TNFα can stop or prevent the syndesmophyte in AS. In summary, looking for new targeting therapies for either anti-inflammation (beyond anti-TNF) or anti-bone formation (including anti-TGFβ or PDGF) is warranted in the future.
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Angiogenic and inflammatory properties of psoriatic arthritis. ISRN DERMATOLOGY 2013; 2013:630620. [PMID: 23819059 PMCID: PMC3683428 DOI: 10.1155/2013/630620] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Accepted: 05/15/2013] [Indexed: 12/29/2022]
Abstract
Psoriatic arthritis (PsA) is a chronic inflammatory arthropathy associated with psoriasis and included in seronegative spondyloarthropathy. PsA has several unique characteristics different from rheumatoid arthritis (RA), such as enthesopathy, dactylitis, and abnormal bone remodeling. As compared with synovitis of RA (pannus), proliferation of PsA synovium is mild and characterized by hypervascularity and increased infiltration of polymorphonuclear leukocytes in the synovial tissues. Angiogenesis plays a crucial role in cutaneous psoriasis, and several angiogenic factors such as vascular endothelial growth factor, interleukin-8, angiopoietin, tumor necrosis factor- α and transforming growth factor-β, are suggested to play an important role also in the pathophysiology of PsA. Further, IL-17 has various functions such as upregulation of proinflammatory cytokines, attraction of neutrophils, stimulation of keratinocytes, endothelial cell migration, and osteoclast formation via RANKL from activated synovial fibroblasts. Thus, IL-17 may be important in angiogenesis, fibrogenesis, and osteoclastogenesis in PsA. In this paper, roles of angiogenesis in the psoriatic synovium are discussed, which may strengthen the understanding of the pathogenesis of PsA.
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Yeremenko N, Noordenbos T, Cantaert T, van Tok M, van de Sande M, Cañete JD, Tak PP, Baeten D. Disease-specific and inflammation-independent stromal alterations in spondylarthritis synovitis. ACTA ACUST UNITED AC 2012; 65:174-85. [PMID: 22972410 DOI: 10.1002/art.37704] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2012] [Accepted: 09/06/2012] [Indexed: 12/19/2022]
Affiliation(s)
- Nataliya Yeremenko
- Department of Clinical Immunology and Rheumatology, Academic Medical Center and University of Amsterdam, Amsterdam, The Netherlands
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Auletta JJ, Bartholomew AM, Maziarz RT, Deans RJ, Miller RH, Lazarus HM, Cohen JA. The potential of mesenchymal stromal cells as a novel cellular therapy for multiple sclerosis. Immunotherapy 2012; 4:529-47. [PMID: 22642335 PMCID: PMC3381871 DOI: 10.2217/imt.12.41] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Multiple sclerosis (MS) is an inflammatory neurodegenerative disease of the CNS for which only partially effective therapies exist. Intense research defining the underlying immune pathophysiology is advancing both the understanding of MS as well as revealing potential targets for disease intervention. Mesenchymal stromal cell (MSC) therapy has the potential to modulate aberrant immune responses causing demyelination and axonal injury associated with MS, as well as to repair and restore damaged CNS tissue and cells. This article reviews the pathophysiology underlying MS, as well as providing a cutting-edge perspective into the field of MSC therapy based upon the experience of authors intrinsically involved in MS and MSC basic and translational science research.
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Affiliation(s)
- Jeffery J Auletta
- National Center for Regenerative Medicine, Case Western Reserve University, Cleveland, OH 44106, USA.
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Appel H, Braun J. Synovitis in spondyloarthritides. Open Rheumatol J 2012; 5:123-6. [PMID: 22279511 PMCID: PMC3263467 DOI: 10.2174/1874312901105010123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2011] [Revised: 09/27/2011] [Accepted: 10/03/2011] [Indexed: 12/04/2022] Open
Abstract
Recent studies using magnetic resonance imaging have suggested that the subchondral bone marrow and the entheses are the sites which are primarily involved in the peripheral and axial inflammation found in patients with spondyloarthritides. Histopathological analyses indicated that the typical morphological features at these sites reflect an inflammation (osteitis) at the bone cartilage interface and in the subchondral bone marrow. This finding implies that synovitis may be of minor importance, especially in comparison to other inflammatory joint diseases such as rheumatoid arthritis. Here, we summarize current available knowledge on synovial involvement in inflammatory processes related to SpA.
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Affiliation(s)
- Heiner Appel
- Charité Berlin, Campus Benjamin Franklin, Department of Gastroenterology, Infectiology and Rheumatology, Germany
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Paramarta JE, Baeten D, De Rycke L. Synovial Tissue Response to Treatment with TNF Blockers in Peripheral Spondyloarthritis. Open Rheumatol J 2011; 5:127-32. [PMID: 22279512 PMCID: PMC3263444 DOI: 10.2174/1874312901105010127] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2011] [Revised: 10/03/2011] [Accepted: 10/10/2011] [Indexed: 12/17/2022] Open
Abstract
This review describes the synovial response to treatment in peripheral spondyloarthritis (SpA). A series of recent studies demonstrates that the synovial histopathology is largely homogenous between different SpA subtypes and can be strongly modulated by effective treatment such as tumor necrosis factor (TNF) blockade. This includes a dramatic reduction of the infiltration with inflammatory cells (with the intriguing exception of B lymphocytes and plasma cells), a modulation of structural features such as vascularity, intimal lining layer hyperplasia, and ectopic lymphoid neogenesis, and a down-regulation of a variety of mediators involved in tissue damage. The analysis of tissue response to targeted therapies appears to be a novel and elegant approach to study the immunopathology of human peripheral SpA in vivo. Moreover, detailed cellular and molecular analysis of synovial features allows to identify synovial biomarkers of clinical response to therapeutic interventions which can be used in future early phase clinical trials in SpA.
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Affiliation(s)
- Jacqueline E Paramarta
- Department of Clinical Immunology and Rheumatology, Academic Medical Center/University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands
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Tan FK, Farheen K. The potential importance of Toll-like receptors in ankylosing spondylitis. ACTA ACUST UNITED AC 2011; 6:649-654. [PMID: 22389660 DOI: 10.2217/ijr.11.61] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Cells involved in innate immunity scan for pathogens via extracellular and intracellular (endosomal) pattern recognition receptors (PRRs). Engagement of PRRs by a specific ligand results in downstream activation of intracellular inflammatory cascades. There is emerging evidence indicating that one class of PRR, the Toll-like receptor (TLR) plays a potential role in the pathogenesis of spondyloarthropathies. Since certain Gram-negative bacteria are known to act as triggers for reactive arthritis, there has been much interest in studying the role of TLRs in spondyloarthropathies. In this article, we introduce the immunology of TLRs followed by a discussion of their potential role in ankylosing spondylitis.
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Affiliation(s)
- Filemon K Tan
- Division of Rheumatology, Department of Internal Medicine, 6431 Fannin, MSB 5.270, Houston, TX 77030, USA
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Guerrero ATG, Cunha TM, Verri WA, Gazzinelli RT, Teixeira MM, Cunha FQ, Ferreira SH. Toll-like receptor 2/MyD88 signaling mediates zymosan-induced joint hypernociception in mice: participation of TNF-α, IL-1β and CXCL1/KC. Eur J Pharmacol 2011; 674:51-7. [PMID: 22051147 DOI: 10.1016/j.ejphar.2011.10.023] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2011] [Revised: 10/03/2011] [Accepted: 10/11/2011] [Indexed: 02/03/2023]
Abstract
Arthritic pain is a serious health problem that affects a large number of patients. Toll-like receptors (TLRs) activation within the joints has been implicated in pathophysiology of arthritis. However, their role in the genesis of arthritic pain needs to be demonstrated. In the present study, it was addressed the participation of TLR2 and TLR4 and their adaptor molecule MyD88 in the genesis of joint hypernociception (a decrease in the nociceptive threshold) during zymosan-induced arthritis. Zymosan injected in the tibio-tarsal joint induced mechanical hypernociception in C57BL/6 wild type mice that was reduced in TLR2 and MyD88 null mice. On the other hand, zymosan-induced hypernociception was similar in C3H/HePas and C3H/HeJ mice (TLR4 mutant mice). Zymosan-induced joint hypernociception was also reduced in TNFR1 null mice and in mice treated with IL-1 receptor antagonist or with an antagonist of CXCR1/2. Moreover, the joint production of TNF-α, IL-1β and CXCL1/KC by zymosan was dependent on TLR2/MyD88 signaling. Investigating the mechanisms by which TNF-α, IL-1β and CXCL1/KC mediate joint hypernociception, joint administration of these cytokines produced mechanical hypernociception, and they act in an interdependent manner. In last instance, their hypernociceptive effects were dependent on the production of hypernociceptive mediators, prostaglandins and sympathetic amines. These results indicate that in zymosan-induced experimental arthritis, TLR2/MyD88 is involved in the cascade of events of joint hypernociception through a mechanism dependent on cytokines and chemokines production. Thus, TLR2/MyD88 signaling might be a target for the development of novel drugs to control pain in arthritis.
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Affiliation(s)
- Ana T G Guerrero
- Department of Pharmacology, University of São Paulo, Ribeirão Preto, Brazil
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Abstract
Spondyloarthritis is a group of several related but phenotypically distinct disorders: psoriatic arthritis, arthritis related to inflammatory bowel disease, reactive arthritis, a subgroup of juvenile idiopathic arthritis, and ankylosing spondylitis (the prototypic and best studied subtype). The past decade yielded major advances in the recognition of spondyloarthritis as an entity, the classification of the disease, and understanding of the genetic and pathophysiological mechanisms of disease-related inflammation and tissue damage. In parallel, new clinical and imaging outcomes have allowed the assessment of various therapeutic modalities. Blockers of tumour necrosis factor are a major therapeutic advance, but the exact roles of physiotherapy, and treatment with non-steroidal anti-inflammatory drugs and other biological treatments are unknown. The major challenges with direct relevance for clinical practice for the next decade are the development of techniques for early diagnosis, therapeutic modulation of structural damage, and, ultimately, induction of long-term, drug-free remission.
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Affiliation(s)
- Maxime Dougados
- Paris-Descartes University, Medicine Faculty, UPRES EA 4058, AP-HP, Cochin Hospital, Department of Rheumatology B, Paris, France.
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FrancoSalinas G, Mai HL, Jovanovic V, Moizant F, Vanhove B, Boeffard F, Usal C, Tak PP, Soulillou JP, Baeten D, Brouard S. TNF blockade abrogates the induction of T cell-dependent humoral responses in an allotransplantation model. J Leukoc Biol 2011; 90:367-75. [PMID: 21562051 DOI: 10.1189/jlb.0710392] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
TNF blockade modulates many aspects of the immune response and is commonly used in a wide array of immune-mediated inflammatory diseases. As anti-TNF induces anti-dsDNA IgM antibodies but not other antinuclear reactivities in human arthritis, we investigated here the effect of TNF blockade on the induction of TD humoral responses using cardiac allograft and xenograft models. A single injection of an anti-rat TNF antibody in LEW.1A recipients grafted with congenic LEW.1W hearts almost completely abrogated the induction of IgM and IgG alloantibodies. This was associated with decreased Ig deposition and leukocyte infiltration in the graft at Day 5. TNF blockade did not affect germinal-center formation in the spleen or expression of Th1/Th2 cytokines, costimulatory and regulatory molecules, and TLRs in spleen and graft of the recipient animals. Clinically, the abrogation of the induction of the alloantibodies was associated with a marked prolongation of graft survival. In contrast, anti-TNF did not alter acute xenograft rejection mediated by TI antibodies in a hamster-to-rat model. Taken together, these data indicate that TNF blockade abrogates the induction of TD humoral responses and accordingly, may have a beneficial effect in antibody-mediated inflammatory pathologies.
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Affiliation(s)
- Gabriela FrancoSalinas
- Clinical Immunology and Rheumatology, Academic Medical Center/University of Amsterdam, Amsterdam, The Netherlands
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Lories RJU, de Vlam K, Luyten FP. Are current available therapies disease-modifying in spondyloarthritis? Best Pract Res Clin Rheumatol 2011; 24:625-35. [PMID: 21035084 DOI: 10.1016/j.berh.2010.05.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Disease modification in spondyloarthritis should target the improvement of symptoms and preservation of function. Therefore, inhibition of structural damage caused by the disease processes appears essential. In spondyloarthritis, structural damage results mainly in progressive ankylosis of the spine and peripheral joint destruction. Currently available therapies for the treatment of spondyloarthritis appear effective at inhibiting tissue destruction but, with the exception of celecoxib, do not appear to affect new tissue formation leading to ankylosis. In this article, we discuss clinical and pathophysiological concepts of disease modification in spondyloarthritis, challenges in its evaluation, recent clinical data and new concepts that may help explain structural damage as well as the onset and progression of disease.
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Affiliation(s)
- Rik J U Lories
- Laboratory for Skeletal Development and Joint Disorders, Division of Rheumatology, Department of Musculoskeletal Sciences, Katholieke Universiteit Leuven, Belgium.
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Baeten D. Etiology, pathogenesis, and pathophysiology of ankylosing spondylitis. Rheumatology (Oxford) 2011. [DOI: 10.1016/b978-0-323-06551-1.00113-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Cseh A, Vasarhelyi B, Molnar K, Szalay B, Svec P, Treszl A, Dezsofi A, Lakatos PL, Arato A, Tulassay T, Veres G. Immune phenotype in children with therapy-naïve remitted and relapsed Crohn’s disease. World J Gastroenterol 2010; 16:6001-9. [PMID: 21157977 PMCID: PMC3007111 DOI: 10.3748/wjg.v16.i47.6001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To characterize the prevalence of subpopulations of CD4+ cells along with that of major inhibitor or stimulator cell types in therapy-naïve childhood Crohn’s disease (CD) and to test whether abnormalities of immune phenotype are normalized with the improvement of clinical signs and symptoms of disease.
METHODS: We enrolled 26 pediatric patients with CD. 14 therapy-naïve CD children; of those, 10 children remitted on conventional therapy and formed the remission group. We also tested another group of 12 children who relapsed with conventional therapy and were given infliximab; and 15 healthy children who served as controls. The prevalence of Th1 and Th2, naïve and memory, activated and regulatory T cells, along with the members of innate immunity such as natural killer (NK), NK-T, myeloid and plasmocytoid dendritic cells (DCs), monocytes and Toll-like receptor (TLR)-2 and TLR-4 expression were determined in peripheral blood samples.
RESULTS: Children with therapy-naïve CD and those in relapse showed a decrease in Th1 cell prevalence. Simultaneously, an increased prevalence of memory and activated lymphocytes along with that of DCs and monocytes was observed. In addition, the ratio of myeloid /plasmocytoid DCs and the prevalence of TLR-2 or TLR-4 positive DCs and monocytes were also higher in therapy-naïve CD than in controls. The majority of alterations diminished in remitted CD irrespective of whether remission was obtained by conventional or biological therapy.
CONCLUSION: The finding that immune phenotype is normalized in remission suggests a link between immune phenotype and disease activity in childhood CD. Our observations support the involvement of members of the adaptive and innate immune systems in childhood CD.
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Coenen MJH, Enevold C, Barrera P, Schijvenaars MMVAP, Toonen EJM, Scheffer H, Padyukov L, Kastbom A, Klareskog L, Barton A, Kievit W, Rood MJ, Jansen TL, Swinkels D, van Riel PLCM, Franke B, Bendtzen K, Radstake TRDJ. Genetic variants in toll-like receptors are not associated with rheumatoid arthritis susceptibility or anti-tumour necrosis factor treatment outcome. PLoS One 2010; 5:e14326. [PMID: 21179534 PMCID: PMC3002281 DOI: 10.1371/journal.pone.0014326] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2010] [Accepted: 11/22/2010] [Indexed: 11/29/2022] Open
Abstract
Background Several studies point to a role of Toll-like receptors (TLRs) in the development of rheumatoid arthritis (RA). We investigated if genetic variants in TLR genes are associated with RA and response to tumour necrosis factor blocking (anti-TNF) medication. Methodology and Principal Findings 22 single nucleotide polymorphisms (SNPs) in seven TLR genes were genotyped in a Dutch cohort consisting of 378 RA patients and 294 controls. Significantly associated variants were investigated in replication cohorts from The Netherlands, United Kingdom and Sweden (2877 RA patients and 2025 controls). 182 of the Dutch patients were treated with anti-TNF medication. Using these patients and a replication cohort (269 Swedish patients) we analysed if genetic variants in TLR genes were associated with anti-TNF outcome. In the discovery phase of the study we found a significant association of SNPs rs2072493 in TLR5 and rs3853839 in TLR7 with RA disease susceptibility. Meta-analysis of discovery and replication cohorts did not confirm these findings. SNP rs2072493 in TLR5 was associated with anti-TNF outcome in the Dutch but not in the Swedish population. Conclusion We conclude that genetic variants in TLRs do not play a major role in susceptibility for developing RA nor in anti-TNF treatment outcome in a Caucasian population.
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Affiliation(s)
- Marieke J H Coenen
- Department of Human Genetics, Radboud University Nijmegen Medical Centre, Institute for Genetic and Metabolic Disease (IGMD), Nijmegen, The Netherlands.
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Assassi S, Reveille JD, Arnett FC, Weisman MH, Ward MM, Agarwal SK, Gourh P, Bhula J, Sharif R, Sampat K, Mayes MD, Tan FK. Whole-blood gene expression profiling in ankylosing spondylitis shows upregulation of toll-like receptor 4 and 5. J Rheumatol 2010; 38:87-98. [PMID: 20952467 DOI: 10.3899/jrheum.100469] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
OBJECTIVE to identify differentially expressed genes in peripheral blood cells (PBC) of patients with ankylosing spondylitis (AS) relative to healthy controls and controls with systemic inflammation. METHODS we investigated PBC samples of 16 patients with AS and 14 matched controls, in addition to systemic lupus erythematosus (SLE) and systemic sclerosis (SSc) samples utilizing Illumina Human Ref-8 BeadChips. Candidate genes were confirmed using quantitative PCR. Subsequently, these genes were also validated in a separate sample of 27 patients with AS [before and after anti-tumor necrosis factor (anti-TNF) treatment] and 27 matched controls. RESULTS we identified 83 differentially expressed transcripts between AS patients and controls. This gene list was filtered through the lists of differentially expressed transcripts in SLE and SSc, which resulted in identification of 52 uniquely dysregulated transcripts in AS. Many of the differentially expressed genes belonged to Toll-like receptor (TLR) and related pathways. TLR4 and TLR5 were the only dysregulated TLR subtypes among AS patients. We confirmed the overexpression of TLR4 and TLR5 in AS patients in comparison to controls (p = 0.012 and p = 0.006, respectively) and SLE (p = 0.002, p = 0.008) using quantitative PCR in the same sample. Similarly, TLR4 (p = 0.007) and TLR5 (p = 0.012) were significantly upregulated among the AS patients before anti-TNF treatment in the confirmatory sample. TLR4 (p = 0.002) and TLR5 (p = 0.025) decreased significantly after anti-TNF treatment. CONCLUSION PBC gene expression profiling in AS shows an upregulation of TLR4 and TLR5. This supports the importance of TLR subtypes in the pathogenesis of AS that are responsible for the immune response to Gram-negative bacteria.
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Affiliation(s)
- Shervin Assassi
- Department of Medicine, Division of Rheumatology, University of Texas Health Science Center, Houston, TX 77030, USA.
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