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Zhang A, Brouwer E, Sandovici M, Diepstra A, Jiemy WF, van der Geest KSM. The immune pathology of bursitis in rheumatic inflammatory diseases, degenerative conditions and mechanical stress: A systematic review. Semin Arthritis Rheum 2024; 68:152527. [PMID: 39146915 DOI: 10.1016/j.semarthrit.2024.152527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 07/15/2024] [Accepted: 07/22/2024] [Indexed: 08/17/2024]
Abstract
OBJECTIVE To summarize current insights on the immune pathology of bursitis caused by rheumatic inflammatory diseases, degenerative conditions, or mechanical stress and identify knowledge gaps in this field. Data on tenosynovitis pathology was included for comparison. METHODS We performed a systematic review encompassing an electronic database search of all published literatures in PubMed/MEDLINE from inception to February 13, 2023, investigating the immunological changes occurring in the bursa of patients with inflammatory rheumatic diseases, degenerative conditions or mechanical stress (e.g., impingement syndrome). RESULTS Thirty-two articles provided data on the immune pathology of bursal tissue inflammation were identified. Histological and immunological perturbations included alterations of tissue morphology, infiltration of macrophages and some T cells, and enhanced expression of proinflammatory cytokines, such as interleukin (IL)-6, IL-1β and tumor necrosis factor alpha (TNF-α). These changes were described for all three underlying causes, although studies on bursitis associated with rheumatic inflammatory diseases were rare. Fibrosis was only reported in subacromial bursitis caused by mechanical stress within our included studies. CONCLUSION Current insights on bursitis were outdated and studies on bursitis associated with rheumatic inflammatory diseases are particularly lacking. Substantial overlap of enhanced expression of IL-6, IL-1β, TNF-α and infiltrating macrophages were found in bursitis irrespective of the underlying cause. In depth investigation on bursitis such as high throughput multi-omics are urgently needed to guide disease-specific therapeutic management.
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Affiliation(s)
- Anqi Zhang
- Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands.
| | - Elisabeth Brouwer
- Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Maria Sandovici
- Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Arjan Diepstra
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - William F Jiemy
- Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Kornelis S M van der Geest
- Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
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Suppression of Macrophage Activation by Sodium Danshensu via HIF-1α/STAT3/NLRP3 Pathway Ameliorated Collagen-Induced Arthritis in Mice. Molecules 2023; 28:molecules28041551. [PMID: 36838542 PMCID: PMC9963181 DOI: 10.3390/molecules28041551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 01/28/2023] [Accepted: 01/31/2023] [Indexed: 02/09/2023] Open
Abstract
It is still a clinical challenge to sustain the remission of rheumatoid arthritis (RA); thus, identifying more effective and safer agents for RA treatment remains an urgent demand. We investigated the anti-arthritic activity and potential mechanism of action of sodium Danshensu (SDSS), a structurally representative water-soluble derivative of Danshen, on collagen-induced arthritis (CIA) mice. Our results showed that paw edema, synovium hyperplasia, bone destruction, and the serum levels of both IL-1β and IL-6 were ameliorated by SDSS (40 mg/kg·d) in CIA mice. In addition, there was no difference between SDSS and methotrexate (MTX, 2 mg/kg·3d) treatment in the above indicators. Further mechanism studies illustrated that SDSS inhibited IL-1β secretion by downregulating the HIF-1α/STAT3/NLRP3 pathway in macrophages. On the other hand, HIF-1α accumulation and HIF-1α/STAT3/NLRP3 pathway activation by IOX4 stimulation reduced the therapeutic effect of SDSS. These findings demonstrate that SDSS displays anti-arthritic activity in CIA mice and prevents proinflammatory cytokines secretion in macrophages by suppressing the HIF-1α/STAT3/NLRP3 pathway.
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Yang M, Zhao C, Wang M, Wang Q, Zhang R, Bai W, Liu J, Zhang S, Xu D, Liu S, Li X, Qi Z, Yang F, Zhu L, He X, Tian X, Zeng X, Li J, Jiang Y. Synovial Oxygenation at Photoacoustic Imaging to Assess Rheumatoid Arthritis Disease Activity. Radiology 2023; 306:220-228. [PMID: 35997608 DOI: 10.1148/radiol.212257] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Background Synovial hypoxia is a hallmark of rheumatoid arthritis (RA). Photoacoustic (PA) imaging, based on the use of laser-generated US, can detect the oxygenation status of tissue in individuals with RA. However, large studies are lacking, with few investigating the correlation between oxygenation status and disease activity. Purpose To measure synovial oxygenation status in participants with RA by using a multimodal PA US imaging system and to determine the correlation between PA imaging-measured oxygen saturation (SO2) and disease activity. Materials and Methods In this prospective observational cohort study, multimodal PA US imaging examinations were performed on small joints of consecutive participants with RA, who were treated at two outpatient rheumatology clinics from 2019 to 2021, and healthy controls. The SO2 values of the synovium were measured with dual-wavelength PA imaging and classified into three categories-hyperoxia, intermediate oxygenation status, or hypoxia-based on the signal coloration and clustering analysis of the SO2 values. The correlations of oxygenation status with power Doppler US (PDUS) scoring and clinical disease activity index were evaluated with one-way analysis of variance and the Kruskal-Wallis test with Bonferroni correction. Results A total of 118 participants with RA (median age, 55 years [IQR, 41-62 years]; 92 women) and 15 healthy control participants (median age, 37 years [IQR, 33-41 years]; 11 women) were included. The wrist synovium was categorized as hyperoxic in 36 participants with RA, of intermediate oxygenation status in 48 participants, and hypoxic in 34 participants. All control participants had hyperoxic synovial tissues. For participants with RA, hyperoxic synovium had more affluent Doppler US-depicted vasculature than those with hypoxia and intermediate oxygenation status (mean PDUS grade: hyperoxia, 2.7 ± 0.6 [SD]; intermediate, 1.3 ± 0.7; hypoxia, 1.1 ± 0.8; P < .001). Participants with intermediate status synovium had a lower clinical disease activity index than those with hypoxia (intermediate, 11.0 [IQR, 5.0-21.5] vs hypoxia, 26.0 [IQR, 18.0-39.0]; P = .001). Conclusion Photoacoustic imaging-detected hypoxia in thickened synovium correlated with less vascularization and higher disease activity in participants with rheumatoid arthritis. Clinical trial registration no. NCT04297475 © RSNA, 2022 Online supplemental material is available for this article.
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Affiliation(s)
- Meng Yang
- From the Departments of Ultrasound (M.Y., C.Z., M.W., R.Z., S.L., X.L., Z.Q., J. Li, Y.J.) and Rheumatology and Clinical Immunology (Q.W., W.B., S.Z., D.X., X.T., X.Z.), State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shuaifuyuan No. 1, Dongcheng District, Beijing 100730, China; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science & Technology, and Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China (Q.W., W.B., S.Z., D.X., X.T., X.Z.,); Department of Rheumatology, Aero Space Central Hospital, Beijing, China (J. Liu); and Shenzhen Mindray Bio-Medical Electronics Co, Ltd, Shenzhen, China (F.Y., L.Z., X.H.)
| | - Chenyang Zhao
- From the Departments of Ultrasound (M.Y., C.Z., M.W., R.Z., S.L., X.L., Z.Q., J. Li, Y.J.) and Rheumatology and Clinical Immunology (Q.W., W.B., S.Z., D.X., X.T., X.Z.), State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shuaifuyuan No. 1, Dongcheng District, Beijing 100730, China; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science & Technology, and Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China (Q.W., W.B., S.Z., D.X., X.T., X.Z.,); Department of Rheumatology, Aero Space Central Hospital, Beijing, China (J. Liu); and Shenzhen Mindray Bio-Medical Electronics Co, Ltd, Shenzhen, China (F.Y., L.Z., X.H.)
| | - Ming Wang
- From the Departments of Ultrasound (M.Y., C.Z., M.W., R.Z., S.L., X.L., Z.Q., J. Li, Y.J.) and Rheumatology and Clinical Immunology (Q.W., W.B., S.Z., D.X., X.T., X.Z.), State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shuaifuyuan No. 1, Dongcheng District, Beijing 100730, China; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science & Technology, and Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China (Q.W., W.B., S.Z., D.X., X.T., X.Z.,); Department of Rheumatology, Aero Space Central Hospital, Beijing, China (J. Liu); and Shenzhen Mindray Bio-Medical Electronics Co, Ltd, Shenzhen, China (F.Y., L.Z., X.H.)
| | - Qian Wang
- From the Departments of Ultrasound (M.Y., C.Z., M.W., R.Z., S.L., X.L., Z.Q., J. Li, Y.J.) and Rheumatology and Clinical Immunology (Q.W., W.B., S.Z., D.X., X.T., X.Z.), State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shuaifuyuan No. 1, Dongcheng District, Beijing 100730, China; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science & Technology, and Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China (Q.W., W.B., S.Z., D.X., X.T., X.Z.,); Department of Rheumatology, Aero Space Central Hospital, Beijing, China (J. Liu); and Shenzhen Mindray Bio-Medical Electronics Co, Ltd, Shenzhen, China (F.Y., L.Z., X.H.)
| | - Rui Zhang
- From the Departments of Ultrasound (M.Y., C.Z., M.W., R.Z., S.L., X.L., Z.Q., J. Li, Y.J.) and Rheumatology and Clinical Immunology (Q.W., W.B., S.Z., D.X., X.T., X.Z.), State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shuaifuyuan No. 1, Dongcheng District, Beijing 100730, China; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science & Technology, and Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China (Q.W., W.B., S.Z., D.X., X.T., X.Z.,); Department of Rheumatology, Aero Space Central Hospital, Beijing, China (J. Liu); and Shenzhen Mindray Bio-Medical Electronics Co, Ltd, Shenzhen, China (F.Y., L.Z., X.H.)
| | - Wei Bai
- From the Departments of Ultrasound (M.Y., C.Z., M.W., R.Z., S.L., X.L., Z.Q., J. Li, Y.J.) and Rheumatology and Clinical Immunology (Q.W., W.B., S.Z., D.X., X.T., X.Z.), State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shuaifuyuan No. 1, Dongcheng District, Beijing 100730, China; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science & Technology, and Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China (Q.W., W.B., S.Z., D.X., X.T., X.Z.,); Department of Rheumatology, Aero Space Central Hospital, Beijing, China (J. Liu); and Shenzhen Mindray Bio-Medical Electronics Co, Ltd, Shenzhen, China (F.Y., L.Z., X.H.)
| | - Jian Liu
- From the Departments of Ultrasound (M.Y., C.Z., M.W., R.Z., S.L., X.L., Z.Q., J. Li, Y.J.) and Rheumatology and Clinical Immunology (Q.W., W.B., S.Z., D.X., X.T., X.Z.), State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shuaifuyuan No. 1, Dongcheng District, Beijing 100730, China; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science & Technology, and Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China (Q.W., W.B., S.Z., D.X., X.T., X.Z.,); Department of Rheumatology, Aero Space Central Hospital, Beijing, China (J. Liu); and Shenzhen Mindray Bio-Medical Electronics Co, Ltd, Shenzhen, China (F.Y., L.Z., X.H.)
| | - Shangzhu Zhang
- From the Departments of Ultrasound (M.Y., C.Z., M.W., R.Z., S.L., X.L., Z.Q., J. Li, Y.J.) and Rheumatology and Clinical Immunology (Q.W., W.B., S.Z., D.X., X.T., X.Z.), State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shuaifuyuan No. 1, Dongcheng District, Beijing 100730, China; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science & Technology, and Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China (Q.W., W.B., S.Z., D.X., X.T., X.Z.,); Department of Rheumatology, Aero Space Central Hospital, Beijing, China (J. Liu); and Shenzhen Mindray Bio-Medical Electronics Co, Ltd, Shenzhen, China (F.Y., L.Z., X.H.)
| | - Dong Xu
- From the Departments of Ultrasound (M.Y., C.Z., M.W., R.Z., S.L., X.L., Z.Q., J. Li, Y.J.) and Rheumatology and Clinical Immunology (Q.W., W.B., S.Z., D.X., X.T., X.Z.), State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shuaifuyuan No. 1, Dongcheng District, Beijing 100730, China; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science & Technology, and Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China (Q.W., W.B., S.Z., D.X., X.T., X.Z.,); Department of Rheumatology, Aero Space Central Hospital, Beijing, China (J. Liu); and Shenzhen Mindray Bio-Medical Electronics Co, Ltd, Shenzhen, China (F.Y., L.Z., X.H.)
| | - Sirui Liu
- From the Departments of Ultrasound (M.Y., C.Z., M.W., R.Z., S.L., X.L., Z.Q., J. Li, Y.J.) and Rheumatology and Clinical Immunology (Q.W., W.B., S.Z., D.X., X.T., X.Z.), State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shuaifuyuan No. 1, Dongcheng District, Beijing 100730, China; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science & Technology, and Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China (Q.W., W.B., S.Z., D.X., X.T., X.Z.,); Department of Rheumatology, Aero Space Central Hospital, Beijing, China (J. Liu); and Shenzhen Mindray Bio-Medical Electronics Co, Ltd, Shenzhen, China (F.Y., L.Z., X.H.)
| | - Xuelan Li
- From the Departments of Ultrasound (M.Y., C.Z., M.W., R.Z., S.L., X.L., Z.Q., J. Li, Y.J.) and Rheumatology and Clinical Immunology (Q.W., W.B., S.Z., D.X., X.T., X.Z.), State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shuaifuyuan No. 1, Dongcheng District, Beijing 100730, China; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science & Technology, and Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China (Q.W., W.B., S.Z., D.X., X.T., X.Z.,); Department of Rheumatology, Aero Space Central Hospital, Beijing, China (J. Liu); and Shenzhen Mindray Bio-Medical Electronics Co, Ltd, Shenzhen, China (F.Y., L.Z., X.H.)
| | - Zhenhong Qi
- From the Departments of Ultrasound (M.Y., C.Z., M.W., R.Z., S.L., X.L., Z.Q., J. Li, Y.J.) and Rheumatology and Clinical Immunology (Q.W., W.B., S.Z., D.X., X.T., X.Z.), State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shuaifuyuan No. 1, Dongcheng District, Beijing 100730, China; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science & Technology, and Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China (Q.W., W.B., S.Z., D.X., X.T., X.Z.,); Department of Rheumatology, Aero Space Central Hospital, Beijing, China (J. Liu); and Shenzhen Mindray Bio-Medical Electronics Co, Ltd, Shenzhen, China (F.Y., L.Z., X.H.)
| | - Fang Yang
- From the Departments of Ultrasound (M.Y., C.Z., M.W., R.Z., S.L., X.L., Z.Q., J. Li, Y.J.) and Rheumatology and Clinical Immunology (Q.W., W.B., S.Z., D.X., X.T., X.Z.), State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shuaifuyuan No. 1, Dongcheng District, Beijing 100730, China; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science & Technology, and Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China (Q.W., W.B., S.Z., D.X., X.T., X.Z.,); Department of Rheumatology, Aero Space Central Hospital, Beijing, China (J. Liu); and Shenzhen Mindray Bio-Medical Electronics Co, Ltd, Shenzhen, China (F.Y., L.Z., X.H.)
| | - Lei Zhu
- From the Departments of Ultrasound (M.Y., C.Z., M.W., R.Z., S.L., X.L., Z.Q., J. Li, Y.J.) and Rheumatology and Clinical Immunology (Q.W., W.B., S.Z., D.X., X.T., X.Z.), State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shuaifuyuan No. 1, Dongcheng District, Beijing 100730, China; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science & Technology, and Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China (Q.W., W.B., S.Z., D.X., X.T., X.Z.,); Department of Rheumatology, Aero Space Central Hospital, Beijing, China (J. Liu); and Shenzhen Mindray Bio-Medical Electronics Co, Ltd, Shenzhen, China (F.Y., L.Z., X.H.)
| | - Xujin He
- From the Departments of Ultrasound (M.Y., C.Z., M.W., R.Z., S.L., X.L., Z.Q., J. Li, Y.J.) and Rheumatology and Clinical Immunology (Q.W., W.B., S.Z., D.X., X.T., X.Z.), State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shuaifuyuan No. 1, Dongcheng District, Beijing 100730, China; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science & Technology, and Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China (Q.W., W.B., S.Z., D.X., X.T., X.Z.,); Department of Rheumatology, Aero Space Central Hospital, Beijing, China (J. Liu); and Shenzhen Mindray Bio-Medical Electronics Co, Ltd, Shenzhen, China (F.Y., L.Z., X.H.)
| | - Xinping Tian
- From the Departments of Ultrasound (M.Y., C.Z., M.W., R.Z., S.L., X.L., Z.Q., J. Li, Y.J.) and Rheumatology and Clinical Immunology (Q.W., W.B., S.Z., D.X., X.T., X.Z.), State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shuaifuyuan No. 1, Dongcheng District, Beijing 100730, China; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science & Technology, and Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China (Q.W., W.B., S.Z., D.X., X.T., X.Z.,); Department of Rheumatology, Aero Space Central Hospital, Beijing, China (J. Liu); and Shenzhen Mindray Bio-Medical Electronics Co, Ltd, Shenzhen, China (F.Y., L.Z., X.H.)
| | - Xiaofeng Zeng
- From the Departments of Ultrasound (M.Y., C.Z., M.W., R.Z., S.L., X.L., Z.Q., J. Li, Y.J.) and Rheumatology and Clinical Immunology (Q.W., W.B., S.Z., D.X., X.T., X.Z.), State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shuaifuyuan No. 1, Dongcheng District, Beijing 100730, China; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science & Technology, and Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China (Q.W., W.B., S.Z., D.X., X.T., X.Z.,); Department of Rheumatology, Aero Space Central Hospital, Beijing, China (J. Liu); and Shenzhen Mindray Bio-Medical Electronics Co, Ltd, Shenzhen, China (F.Y., L.Z., X.H.)
| | - Jianchu Li
- From the Departments of Ultrasound (M.Y., C.Z., M.W., R.Z., S.L., X.L., Z.Q., J. Li, Y.J.) and Rheumatology and Clinical Immunology (Q.W., W.B., S.Z., D.X., X.T., X.Z.), State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shuaifuyuan No. 1, Dongcheng District, Beijing 100730, China; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science & Technology, and Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China (Q.W., W.B., S.Z., D.X., X.T., X.Z.,); Department of Rheumatology, Aero Space Central Hospital, Beijing, China (J. Liu); and Shenzhen Mindray Bio-Medical Electronics Co, Ltd, Shenzhen, China (F.Y., L.Z., X.H.)
| | - Yuxin Jiang
- From the Departments of Ultrasound (M.Y., C.Z., M.W., R.Z., S.L., X.L., Z.Q., J. Li, Y.J.) and Rheumatology and Clinical Immunology (Q.W., W.B., S.Z., D.X., X.T., X.Z.), State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shuaifuyuan No. 1, Dongcheng District, Beijing 100730, China; National Clinical Research Center for Dermatologic and Immunologic Diseases (NCRC-DID), Ministry of Science & Technology, and Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China (Q.W., W.B., S.Z., D.X., X.T., X.Z.,); Department of Rheumatology, Aero Space Central Hospital, Beijing, China (J. Liu); and Shenzhen Mindray Bio-Medical Electronics Co, Ltd, Shenzhen, China (F.Y., L.Z., X.H.)
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Qiao H, Mei J, Yuan K, Zhang K, Zhou F, Tang T, Zhao J. Immune-regulating strategy against rheumatoid arthritis by inducing tolerogenic dendritic cells with modified zinc peroxide nanoparticles. J Nanobiotechnology 2022; 20:323. [PMID: 35836178 PMCID: PMC9281050 DOI: 10.1186/s12951-022-01536-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 06/28/2022] [Indexed: 11/10/2022] Open
Abstract
In hypoxic dendritic cells (DCs), a low level of Zn2+ can induce the activation of immunogenic DCs (igDCs), thereby triggering an active T-cell response to propel the immune progression of rheumatoid arthritis (RA). This finding indicates the crucial roles of zinc and oxygen homeostasis in DCs during the pathogenesis of RA. However, very few studies have focused on the modulation of zinc and oxygen homeostasis in DCs during RA treatment. Proposed herein is a DC-targeting immune-regulating strategy to induce igDCs into tolerogenic DCs (tDCs) and inhibit subsequent T-cell activation, referred to as ZnO2/Catalase@liposome-Mannose nanoparticles (ZnCM NPs). ZnCM NPs displayed targeted intracellular delivery of Zn2+ and O2 towards igDCs in a pH-responsive manner. After inactivating OTUB1 deubiquitination, the ZnCM NPs promoted CCL5 degradation via NF-κB signalling, thereby inducing the igDC-tDC transition to further inhibit CD4+ T-cell homeostasis. In collagen-induced arthritis (CIA) mice, this nanoimmunoplatform showed significant accumulation in the spleen, where immature DCs (imDCs) differentiated into igDCs. Splenic tDCs were induced to alleviate ankle swelling, improve walking posture and safely inhibit ankle/spleen inflammation. Our work pioneers the combination of DC-targeting nanoplatforms with RA treatments and highlights the significance of zinc and oxygen homeostasis for the immunoregulation of RA by inducing tDCs with modified ZnO2 NPs, which provides novel insight into ion homeostasis regulation for the treatment of immune diseases with a larger variety of distinct metal or nonmetal ions. The DC-targeting immune-regulating nanostrategy was firstly employed to treat RA. The complex immune regulating effects was realized through a portable, convenient and green nanomaterial. Highlighting the significance of zinc and oxygen homeostasis for the immunoregulation of RA by inducing tDCs with modified ZnO2 NPs. Expanding the notion of ion homeostasis regulation with a larger variety of distinct metal or nonmetal ions.
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Affiliation(s)
- Han Qiao
- Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, People's Republic of China.,Shanghai Key Laboratory of Orthopaedic Implants, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Jingtian Mei
- Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, People's Republic of China.,Shanghai Key Laboratory of Orthopaedic Implants, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Kai Yuan
- Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, People's Republic of China.,Shanghai Key Laboratory of Orthopaedic Implants, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Kai Zhang
- Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, People's Republic of China.,Shanghai Key Laboratory of Orthopaedic Implants, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Feng Zhou
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, People's Republic of China
| | - Tingting Tang
- Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, People's Republic of China. .,Shanghai Key Laboratory of Orthopaedic Implants, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China.
| | - Jie Zhao
- Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhizaoju Road, Shanghai, 200011, People's Republic of China. .,Shanghai Key Laboratory of Orthopaedic Implants, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China.
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5
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Zhang M, Wu D, Xu J, Liu L, Jiao W, Yu J, Chen G. Suppression of NLRP3 Inflammasome by Dihydroarteannuin via the HIF-1α and JAK3/STAT3 Signaling Pathway Contributes to Attenuation of Collagen-Induced Arthritis in Mice. Front Pharmacol 2022; 13:884881. [PMID: 35571141 PMCID: PMC9091180 DOI: 10.3389/fphar.2022.884881] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Accepted: 03/28/2022] [Indexed: 11/18/2022] Open
Abstract
Dihydroarteannuin (DHA), the primary element of artemisinin extracted from the traditional Chinese herb Artemisia annua L., has been used in malaria treatment for a long time. Recently, many studies have indicated that DHA also exhibits potent anti-rheumatoid arthritis (RA) activity. In this study, collagen-induced arthritis (CIA) in DBA/1J mice and inflammatory model in THP-1 cells were established to evaluate the modulatory effects of DHA on joint destruction and to explore the underlying mechanisms. Our results showed that DHA decreased the serum levels of IL-1β and IL-6, alleviated paw oedema, and reduced bone destruction in DBA/1J mice with CIA. Further exploration with the inflammatory model in THP-1 cells indicated that DHA reduced the protein expression of hypoxia‐inducible factor (HIF)‐1α and the phosphorylation in Janus kinase (JAK) 3 and signal transducer and activator of transcription (STAT) 3 protein, which resulted in a decrease in NOD-like receptor protein (NLRP) 3 expression and interleukin (IL)-1β release. Consequentially, the inflammatory activation in THP-1 cells was inhibited. Therefore, we concluded that DHA efficiently alleviated the inflammation and arthritic symptoms in CIA mice and downregulated inflammation in part by inhibiting NLRP3 expression via the HIF‐1α and JAK3/STAT3 signaling pathway. Thus, DHA may be considered as a potential therapeutic agent in RA treatment.
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Affiliation(s)
- Mingying Zhang
- Department of Rheumatology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.,First Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Danbin Wu
- Department of Rheumatology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.,First Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jia Xu
- First Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Lijuan Liu
- Department of Rheumatology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Wei Jiao
- First Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jiahui Yu
- First Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Guangxing Chen
- Department of Rheumatology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.,First Clinical Medical School, Guangzhou University of Chinese Medicine, Guangzhou, China.,Baiyun Hospital of The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
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6
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Ramos‐Mucci L, Sarmiento P, Little D, Snelling S. Research perspectives-Pipelines to human tendon transcriptomics. J Orthop Res 2022; 40:993-1005. [PMID: 35239195 PMCID: PMC9007907 DOI: 10.1002/jor.25315] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 02/23/2022] [Accepted: 03/01/2022] [Indexed: 02/04/2023]
Abstract
Tendon transcriptomics is a rapidly growing field in musculoskeletal biology. The ultimate aim of many current tendon transcriptomic studies is characterization of in vitro, ex vivo, or in vivo, healthy, and diseased tendon microenvironments to identify the underlying pathways driving human tendon pathology. The transcriptome interfaces between genomic, proteomic, and metabolomic signatures of the tendon cellular niche and the response of this niche to stimuli. Some of the greatest bottlenecks in tendon transcriptomics relate to the availability and quality of human tendon tissue, hence animal tissues are frequently used even though human tissue is most translationally relevant. Here, we review the variability associated with human donor and procurement factors, such as whether the tendon is cadaveric or a clinical remnant, and how these variables affect the quality and relevance of the transcriptomes obtained. Moreover, age, sex, and health demographic variables impact the human tendon transcriptome. Tendons present tissue-specific challenges for cell, nuclei, and RNA extraction that include a dense extracellular matrix, low cellularity, and therefore low RNA yield of variable quality. Consideration of these factors is particularly important for single-cell and single-nuclei resolution transcriptomics due to the necessity for unbiased and representative cell or nuclei populations. Different cell, nuclei, and RNA extraction methods, library preparation, and quality control methods are used by the tendon research community and attention should be paid to these when designing and reporting studies. We discuss the different components and challenges of human tendon transcriptomics, and propose pipelines, quality control, and reporting guidelines for future work in the field.
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Affiliation(s)
- Lorenzo Ramos‐Mucci
- Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal ScienceUniversity of OxfordOxfordUK
| | - Paula Sarmiento
- Department of Biomedical EngineeringPurdue UniversityWest LafayetteIndianaUSA
| | - Dianne Little
- Department of Biomedical EngineeringPurdue UniversityWest LafayetteIndianaUSA
- Department of Basic Medical SciencesPurdue UniversityWest LafayetteIndianaUSA
| | - Sarah Snelling
- Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal ScienceUniversity of OxfordOxfordUK
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7
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Fearon U, Hanlon MM, Floudas A, Veale DJ. Cellular metabolic adaptations in rheumatoid arthritis and their therapeutic implications. Nat Rev Rheumatol 2022; 18:398-414. [PMID: 35440762 DOI: 10.1038/s41584-022-00771-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/04/2022] [Indexed: 12/16/2022]
Abstract
Activation of endothelium and immune cells is fundamental to the initiation of autoimmune diseases such as rheumatoid arthritis (RA), and it results in trans-endothelial cell migration and synovial fibroblast proliferation, leading to joint destruction. In RA, the synovial microvasculature is highly dysregulated, resulting in inefficient oxygen perfusion to the synovium, which, along with the high metabolic demands of activated immune and stromal cells, leads to a profoundly hypoxic microenvironment. In inflamed joints, infiltrating immune cells and synovial resident cells have great requirements for energy and nutrients, and they adapt their metabolic profiles to generate sufficient energy to support their highly activated inflammatory states. This shift in metabolic capacity of synovial cells enables them to produce the essential building blocks to support their proliferation, activation and invasiveness. Furthermore, it results in the accumulation of metabolic intermediates and alteration of redox-sensitive pathways, affecting signalling pathways that further potentiate the inflammatory response. Importantly, the inflamed synovium is a multicellular tissue, with cells differing in their metabolic requirements depending on complex cell-cell interactions, nutrient supply, metabolic intermediates and transcriptional regulation. Therefore, understanding the complex interplay between metabolic and inflammatory pathways in synovial cells in RA will provide insight into the underlying mechanisms of disease pathogenesis.
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Affiliation(s)
- Ursula Fearon
- Molecular Rheumatology, Trinity Biomedical Sciences Institute, TCD, Dublin, Ireland. .,EULAR Centre of Excellence, Centre for Arthritis and Rheumatic Diseases, St Vincent's University Hospital, Dublin, Ireland.
| | - Megan M Hanlon
- Molecular Rheumatology, Trinity Biomedical Sciences Institute, TCD, Dublin, Ireland.,EULAR Centre of Excellence, Centre for Arthritis and Rheumatic Diseases, St Vincent's University Hospital, Dublin, Ireland
| | - Achilleas Floudas
- Molecular Rheumatology, Trinity Biomedical Sciences Institute, TCD, Dublin, Ireland.,EULAR Centre of Excellence, Centre for Arthritis and Rheumatic Diseases, St Vincent's University Hospital, Dublin, Ireland
| | - Douglas J Veale
- EULAR Centre of Excellence, Centre for Arthritis and Rheumatic Diseases, St Vincent's University Hospital, Dublin, Ireland
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8
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Guo X, Lv H, Fan Z, Duan K, Liang J, Zou L, Xue H, Huang D, Wang Y, Tan M. Effects of hypoxia on Achilles tendon repair using adipose tissue-derived mesenchymal stem cells seeded small intestinal submucosa. J Orthop Surg Res 2021; 16:570. [PMID: 34579755 PMCID: PMC8474963 DOI: 10.1186/s13018-021-02713-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 09/08/2021] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND The study was performed to evaluate the feasibility of utilizing small intestinal submucosa (SIS) scaffolds seeded with adipose-derived mesenchymal stem cells (ADMSCs) for engineered tendon repairing rat Achilles tendon defects and to compare the effects of preconditioning treatments (hypoxic vs. normoxic) on the tendon healing. METHODS Fifty SD rats were randomized into five groups. Group A received sham operation (blank control). In other groups, the Achilles tendon was resected and filled with the original tendon (Group B, autograft), cell-free SIS (Group C), or SIS seeded with ADMSCs preconditioned under normoxic conditions (Group D) or hypoxic conditions (Group E). Samples were collected 4 weeks after operation and analyzed by histology, immunohistochemistry, and tensile testing. RESULTS Histologically, compared with Groups C and D, Group E showed a significant improvement in extracellular matrix production and a higher compactness of collagen fibers. Group E also exhibited a significantly higher peak tensile load than Groups D and C. Additionally, Group D had a significantly higher peak load than Group C. Immunohistochemically, Group E exhibited a significantly higher percentage of MKX + cells than Group D. The proportion of ADMSCs simultaneously positive for both MKX and CM-Dil observed from Group E was also greater than that in Group D. CONCLUSIONS In this animal model, the engineered tendon grafts created by seeding ADMSCs on SIS were superior to cell-free SIS. The hypoxic precondition further improved the expression of tendon-related genes in the seeded cells and increased the rupture load after grafting in the Achilles tendon defects.
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Affiliation(s)
- Xing Guo
- Department of Orthopaedics, Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
- Sichuan Provincial Lab of Orthopaedic Engineering, Luzhou, 646000, Sichuan, China
| | - Hui Lv
- Department of Orthopaedics, Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
- Sichuan Provincial Lab of Orthopaedic Engineering, Luzhou, 646000, Sichuan, China
| | - ZhongWei Fan
- Department of Orthopaedic Surgery, The First People's Hospital of Neijiang, Neijiang, 641100, Sichuan, China
| | - Ke Duan
- Department of Orthopaedics, Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
- Sichuan Provincial Lab of Orthopaedic Engineering, Luzhou, 646000, Sichuan, China
| | - Jie Liang
- Department of Orthopaedics, Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
- Sichuan Provincial Lab of Orthopaedic Engineering, Luzhou, 646000, Sichuan, China
| | - LongFei Zou
- Department of Orthopaedics, Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
- Sichuan Provincial Lab of Orthopaedic Engineering, Luzhou, 646000, Sichuan, China
| | - Hao Xue
- Department of Orthopaedics, Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
- Sichuan Provincial Lab of Orthopaedic Engineering, Luzhou, 646000, Sichuan, China
| | - DengHua Huang
- Department of Orthopaedics, Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
- Sichuan Provincial Lab of Orthopaedic Engineering, Luzhou, 646000, Sichuan, China
| | - YuanHui Wang
- Department of Orthopaedics, Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China
- Sichuan Provincial Lab of Orthopaedic Engineering, Luzhou, 646000, Sichuan, China
| | - MeiYun Tan
- Department of Orthopaedics, Affiliated Hospital of Southwest Medical University, Luzhou, 646000, Sichuan, China.
- Sichuan Provincial Lab of Orthopaedic Engineering, Luzhou, 646000, Sichuan, China.
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9
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Lee HJ, Lee WJ, Hwang SC, Choe Y, Kim S, Bok E, Lee S, Kim SJ, Kim HO, Ock SA, Noh HS, Rho GJ, Lee SI, Lee SL. Chronic inflammation-induced senescence impairs immunomodulatory properties of synovial fluid mesenchymal stem cells in rheumatoid arthritis. Stem Cell Res Ther 2021; 12:502. [PMID: 34521481 PMCID: PMC8439066 DOI: 10.1186/s13287-021-02453-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 06/11/2021] [Indexed: 12/29/2022] Open
Abstract
Background Although the immunomodulatory properties of mesenchymal stem cells (MSCs) have been highlighted as a new therapy for autoimmune diseases, including rheumatoid arthritis (RA), the disease-specific characteristics of MSCs derived from elderly RA patients are not well understood. Methods We established MSCs derived from synovial fluid (SF) from age-matched early (average duration of the disease: 1.7 years) and long-standing (average duration of the disease: 13.8 years) RA patients (E-/L-SF-MSCs) and then analyzed the MSC characteristics such as stemness, proliferation, cellular senescence, in vitro differentiation, and in vivo immunomodulatory properties. Results The presence of MSC populations in the SF from RA patients was identified. We found that L-SF-MSCs exhibited impaired proliferation, intensified cellular senescence, reduced immunomodulatory properties, and attenuated anti-arthritic capacity in an RA animal model. In particular, E-SF-MSCs demonstrated cellular senescence progression and attenuated immunomodulatory properties similar to those of L-SF-MSC in an RA joint-mimetic milieu due to hypoxia and pro-inflammatory cytokine exposure. Due to a long-term exposure to the chronic inflammatory milieu, cellular senescence, attenuated immunomodulatory properties, and the loss of anti-arthritic potentials were more often identified in SF-MSCs in a long-term RA than early RA. Conclusion We conclude that a chronic RA inflammatory milieu affects the MSC potential. Therefore, this work addresses the importance of understanding MSC characteristics during disease states prior to their application in patients. Graphical abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s13287-021-02453-z.
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Affiliation(s)
- Hyeon-Jeong Lee
- College of Veterinary Medicine, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Won-Jae Lee
- College of Veterinary Medicine, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Sun-Chul Hwang
- Department of Orthopaedic Surgery, Gyeongsang National University School of Medicine and Hospital, Jinju, 52727, Republic of Korea
| | - Yongho Choe
- College of Veterinary Medicine, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Saetbyul Kim
- College of Veterinary Medicine, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Eunyeong Bok
- College of Veterinary Medicine, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Sangyeob Lee
- College of Veterinary Medicine, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Seung-Joon Kim
- College of Veterinary Medicine, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Hyun-Ok Kim
- Department of Internal Medicine and Institute of Health Sciences, Gyeongsang National University School of Medicine and Hospital, Jinju, 52727, Republic of Korea
| | - Sun-A Ock
- Animal Biotechnology Division, National Institute of Animal Science, Rural Development Administration, 1500 Kongjwipatjwi-ro, Isero-myeon, Wanju-gun, Jeollabuk-do, 565-851, Republic of Korea
| | - Hae-Sook Noh
- Department of Internal Medicine and Institute of Health Sciences, Gyeongsang National University School of Medicine and Hospital, Jinju, 52727, Republic of Korea
| | - Gyu-Jin Rho
- College of Veterinary Medicine, Gyeongsang National University, Jinju, 52828, Republic of Korea.,Research Institute of Life Sciences, Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Sang-Il Lee
- Department of Internal Medicine and Institute of Health Sciences, Gyeongsang National University School of Medicine and Hospital, Jinju, 52727, Republic of Korea.
| | - Sung-Lim Lee
- College of Veterinary Medicine, Gyeongsang National University, Jinju, 52828, Republic of Korea. .,Research Institute of Life Sciences, Gyeongsang National University, Jinju, 52828, Republic of Korea.
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10
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Bonilha CS, Benson RA, Brewer JM, Garside P. Targeting Opposing Immunological Roles of the Junctional Adhesion Molecule-A in Autoimmunity and Cancer. Front Immunol 2020; 11:602094. [PMID: 33324419 PMCID: PMC7723963 DOI: 10.3389/fimmu.2020.602094] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 11/02/2020] [Indexed: 01/04/2023] Open
Abstract
The junctional adhesion molecule-A (JAM-A) is a cell surface adhesion molecule expressed on platelets, epithelial cells, endothelial cells and leukocytes (e. g. monocytes and dendritic cells). JAM-A plays a relevant role in leukocyte trafficking and its therapeutic potential has been studied in several pathological conditions due to its capacity to induce leukocyte migration out of inflamed sites or infiltration into tumor sites. However, disruption of JAM-A pathways may worsen clinical pathology in some cases. As such, the effects of JAM-A manipulation on modulating immune responses in the context of different diseases must be better understood. In this mini-review, we discuss the potential of JAM-A as a therapeutic target, summarizing findings from studies manipulating JAM-A in the context of inflammatory diseases (e.g. autoimmune diseases) and cancer and highlighting described mechanisms.
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Affiliation(s)
- Caio S. Bonilha
- College of Medical, Veterinary and Life Sciences, Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom
| | - Robert A. Benson
- College of Medical, Veterinary and Life Sciences, Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom
- Research and Development Department, Antibody Analytics Ltd., Newhouse, Lanarkshire, United Kingdom
| | - James M. Brewer
- College of Medical, Veterinary and Life Sciences, Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom
| | - Paul Garside
- College of Medical, Veterinary and Life Sciences, Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom
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11
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Kaul NC, Mohapatra SR, Adam I, Tucher C, Tretter T, Opitz CA, Lorenz HM, Tykocinski LO. Hypoxia decreases the T helper cell-suppressive capacity of synovial fibroblasts by downregulating IDO1-mediated tryptophan metabolism. Rheumatology (Oxford) 2020; 59:1148-1158. [PMID: 31846032 DOI: 10.1093/rheumatology/kez587] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 10/07/2019] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVE The development of RA is linked to local infiltration of immune cells and to changes in the phenotype of synovial fibroblasts. Synovial fibroblasts possess the capacity to suppress T cell responses through indoleamine 2, 3-dioxygenase 1 (IDO1)-mediated tryptophan metabolism. However, synovial fibroblasts from RA patients are restricted in this immune-modulatory function. Moreover, hypoxic conditions are detected within synovial tissues of RA patients, with oxygen tensions of only 3.2% O2. This study aims at investigating the effects of hypoxia on the interaction between T cells and synovial fibroblasts, particularly on the T cell-suppressive capacities of synovial fibroblasts. METHODS Synovial fibroblasts were cultured with Th cells under normoxic and hypoxic conditions (3% O2). Th cell proliferation was detected by flow cytometry. Tryptophan and kynurenine amounts were measured by HPLC. IDO1 expression and signal transducer and activator of transcription 1 (STAT1) phosphorylation were quantified by real-time PCR or western blot, and cytokine secretion by ELISA. RESULTS Hypoxic conditions strongly diminished the Th cell-suppressive capacities of both OA synovial fibroblasts and RA synovial fibroblasts. Accordingly, IDO1 mRNA and protein expression, STAT1 phosphorylation and tryptophan metabolism were greatly reduced in OA synovial fibroblasts by hypoxia. MMP-3, IL-6, IL-10 and IFNγ secretion were significantly decreased under hypoxia in synovial fibroblast-Th cell co-cultures, while IL-17A levels were elevated. Supplementation with IFNγ, a well-known inducer of IDO1 expression, could rescue neither IDO1 expression nor Th cell suppression under hypoxic conditions. CONCLUSION Hypoxia strongly affected the crosstalk between synovial fibroblasts and Th cells. By reducing the efficiency of synovial fibroblasts to restrict Th cell proliferation and by increasing the expression of IL-17A, hypoxia might have implications on the pathophysiology of RA.
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Affiliation(s)
- Nathalie-Christin Kaul
- Division of Rheumatology, Department of Internal Medicine V, Heidelberg University Hospital
| | - Soumya R Mohapatra
- Brain Cancer Metabolism, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Isabell Adam
- Brain Cancer Metabolism, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Christine Tucher
- Division of Rheumatology, Department of Internal Medicine V, Heidelberg University Hospital
| | - Theresa Tretter
- Division of Rheumatology, Department of Internal Medicine V, Heidelberg University Hospital
| | - Christiane A Opitz
- Brain Cancer Metabolism, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Hanns-Martin Lorenz
- Division of Rheumatology, Department of Internal Medicine V, Heidelberg University Hospital
| | - Lars-Oliver Tykocinski
- Division of Rheumatology, Department of Internal Medicine V, Heidelberg University Hospital
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12
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Ioussoufovitch S, Morrison LB, Desjardins L, Hadway JA, Lawrence KS, Lee TY, Beier F, Diop M. Quantification of joint blood flow by dynamic contrast-enhanced near-infrared spectroscopy: application to monitoring disease activity in a rat model of rheumatoid arthritis. JOURNAL OF BIOMEDICAL OPTICS 2020; 25:1-10. [PMID: 31939225 PMCID: PMC6983648 DOI: 10.1117/1.jbo.25.1.015003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 12/06/2019] [Indexed: 05/11/2023]
Abstract
Significance Current guidelines for rheumatoid arthritis (RA) management recommend early treatment with disease modifying antirheumatic drugs (DMARDs). However, DMARD treatment fails in 30% of patients and current monitoring methods can only detect failure after 3 to 6 months of therapy. Aim We investigated whether joint blood flow (BF), quantified using dynamic contrast-enhanced time-resolved near-infrared spectroscopy, can monitor disease activity and treatment response in a rat model of RA. Approach Ankle joint BF was measured every 5 days in eight rats with adjuvant-induced arthritis (AIA) and four healthy controls. Arthritis was allowed to progress for 20 days before rats with AIA were treated with a DMARD once every 5 days until day 40. Results Time and group had separate significant main effects on joint BF; however, there was no significant interaction between time and group despite a notable difference in average joint BF on day 5. Comparison of individual blood flow measures between rats with AIA and control group animals did not reveal a clear response to treatment. Conclusions Joint BF time courses could not distinguish between rats with AIA and study controls. Heterogeneous disease response and low temporal frequency of BF measurements may have been important study limitations.
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Affiliation(s)
- Seva Ioussoufovitch
- Western University, Bone and Joint Institute, School of Biomedical Engineering, Faculty of Engineering, London, Ontario, Canada
| | - Laura B. Morrison
- Lawson Health Research Institute, Imaging Program, London, Ontario, Canada
| | - Lise Desjardins
- Lawson Health Research Institute, Imaging Program, London, Ontario, Canada
| | - Jennifer A. Hadway
- Lawson Health Research Institute, Imaging Program, London, Ontario, Canada
| | - Keith St. Lawrence
- Lawson Health Research Institute, Imaging Program, London, Ontario, Canada
- Western University, Schulich School of Medicine and Dentistry, Department of Medical Biophysics, London, Ontario, Canada
| | - Ting-Yim Lee
- Lawson Health Research Institute, Imaging Program, London, Ontario, Canada
- Western University, Schulich School of Medicine and Dentistry, Department of Medical Biophysics, London, Ontario, Canada
- Robarts Research Institute, Imaging Program, London, Ontario, Canada
| | - Frank Beier
- Western University, Schulich School of Medicine and Dentistry, Department of Physiology and Pharmacology, London, Ontario, Canada
| | - Mamadou Diop
- Western University, Bone and Joint Institute, School of Biomedical Engineering, Faculty of Engineering, London, Ontario, Canada
- Lawson Health Research Institute, Imaging Program, London, Ontario, Canada
- Western University, Schulich School of Medicine and Dentistry, Department of Medical Biophysics, London, Ontario, Canada
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13
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Yu S, Lu Y, Zong M, Tan Q, Fan L. Hypoxia-induced miR-191-C/EBPβ signaling regulates cell proliferation and apoptosis of fibroblast-like synoviocytes from patients with rheumatoid arthritis. Arthritis Res Ther 2019; 21:78. [PMID: 30894209 PMCID: PMC6425666 DOI: 10.1186/s13075-019-1861-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 03/06/2019] [Indexed: 01/27/2023] Open
Abstract
BACKGROUND Hypoxia plays an important role in the proliferation of rheumatoid arthritis fibroblast-like synoviocytes (RA-FLS), leading to pathology of RA. This study was conducted to evaluate hypoxia-induced microRNAs (hypoxamiR) in RA-FLS and its role in the function of RA-FLS. METHODS RA-FLS were cultured under normoxia (21% O2) or hypoxia (3% O2) condition, followed by a microRNA (miRNA) array analysis. The upregulation of miR-191 by hypoxia was confirmed in RA-FLS and FLS from osteoarthritis (OA) patients by quantitative real-time polymerase chain reaction (RT-PCR). Transfection of miR-191 mimic and inhibitor was used to investigate the function of miR-191 in RA-FLS. The functional targets of miR-191 were predicted by bioinfomatics and then validated by reporter gene assay. RESULTS A subset of miRNAs was identified to be induced by hypoxia including miR-191. The upregulation of miR-191 was found to be specific in hypoxic RA-FLS, compared to hypoxic OA-FLS. We observed that miR-191 in RA-FLS increased cellular proliferation via promoting G1/S transition of the cell cycle and suppressed cell apoptosis induced by cell starvation. Bioinformatical analysis and experimental assays identified CCAAT/enhancer binding protein β (C/EBPβ) as a target gene of miR-191 in RA-FLS. Enforced expression of C/EBPβ rescued the cellular phenotypes induced by miR-191. In addition, an inverse correlation between the C/EBPβ level and hypoxia stimulation was found in RA-FLS, and overexpression of C/EBPβ could partly rescue the hypoxia-induced cell proliferation. CONCLUSION We demonstrated the miR-191-C/EBPβ signaling pathway mediating the hypoxia-induced cell proliferation in RA.
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Affiliation(s)
- Shanshan Yu
- Department of Clinical Laboratory, Shanghai East Hospital, Tongji University School of Medicine, 150 Ji Mo Road, Shanghai, 200120, People's Republic of China
| | - Ying Lu
- Department of Clinical Laboratory, Shanghai East Hospital, Tongji University School of Medicine, 150 Ji Mo Road, Shanghai, 200120, People's Republic of China.,Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, 150 Ji Mo Road, Shanghai, 200120, People's Republic of China
| | - Ming Zong
- Department of Clinical Laboratory, Shanghai East Hospital, Tongji University School of Medicine, 150 Ji Mo Road, Shanghai, 200120, People's Republic of China
| | - Qi Tan
- Department of Clinical Laboratory, Shanghai East Hospital, Tongji University School of Medicine, 150 Ji Mo Road, Shanghai, 200120, People's Republic of China
| | - Lieying Fan
- Department of Clinical Laboratory, Shanghai East Hospital, Tongji University School of Medicine, 150 Ji Mo Road, Shanghai, 200120, People's Republic of China.
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14
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Ma Z, Yu R, Zhao J, Sun L, Jian L, Li C, Liu X. Constant hypoxia inhibits osteoclast differentiation and bone resorption by regulating phosphorylation of JNK and IκBα. Inflamm Res 2019; 68:157-166. [PMID: 30604211 DOI: 10.1007/s00011-018-1209-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 11/19/2018] [Accepted: 12/17/2018] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Osteoclasts are responsible for the bone loss in rheumatoid arthritis (RA). Hypoxia has been suggested to play key roles in pathological bone loss. However, the current understanding of the effects of hypoxia on osteoclastogenesis is controversial. Effects of hypoxia on both the formation and function of osteoclasts requires examination. In the current study, we aimed to explore the effect of hypoxia on osteoclast differentiation and the underlying mechanisms. METHODS RAW264.7 cells and murine bone-marrow-derived monocytes were used to induce osteoclastogenesis in the presence of macrophage colony-stimulating factor (M-CSF) and receptor activator of nuclear factor kappa B ligand (RANKL). Hypoxic conditions were maintained in a hypoxic chamber at 5% CO2 and 1% O2, balanced with N2. Osteoclasts were detected by tartrate-resistant acid phosphatase (TRAP) staining. A bone resorption assay was carried out in vitro using bone slices. RT-PCR was conducted to detect osteoclast markers and transcription factors. The phosphorylation of nuclear factor-κBα (IκBα), c-Jun N-terminal kinase (JNK), extracellular regulated protein kinase (ERK), and p38 was detected by western blotting. Mann-Whitney U test or Student's t test was used to compare differences between the two groups. RESULTS TRAP staining and the bone resorption assay revealed that hypoxia-restrained osteoclast differentiation and bone resorption. Expression of osteoclast markers including cathepsin K, RANK, and TRAP decreased during osteoclast differentiation under hypoxic conditions (all P < 0.05). Hypoxia at 1% O2 did not affect cell viability, whereas it dramatically abated RANKL-dependent phosphorylation of the JNK-mitogen-activated protein kinases (MAPK) and IκBα pathways. Moreover, the expression of nuclear factor of activated T-cell cytoplasmic 1 (NFATc1) was inhibited under hypoxic conditions (all P < 0.05). CONCLUSIONS These results suggest that constant hypoxia at 1% O2 significantly restrains osteoclast formation and resorbing function without affecting cell viability. Constant hypoxia might inhibit RANKL-induced osteoclastogenesis by regulating NFATc1 expression via interfering the phosphorylation of JNK and IκBα.
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Affiliation(s)
- Zhenzhen Ma
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing, 100191, China
| | - Ruohan Yu
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing, 100191, China
| | - Jinxia Zhao
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing, 100191, China
| | - Lin Sun
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing, 100191, China
| | - Leilei Jian
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing, 100191, China
| | - Changhong Li
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing, 100191, China.
| | - Xiangyuan Liu
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing, 100191, China.
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15
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Fearon U, Hanlon MM, Wade SM, Fletcher JM. Altered metabolic pathways regulate synovial inflammation in rheumatoid arthritis. Clin Exp Immunol 2018; 197:170-180. [PMID: 30357805 DOI: 10.1111/cei.13228] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/17/2018] [Indexed: 12/25/2022] Open
Abstract
Rheumatoid arthritis is characterized by synovial proliferation, neovascularization and leucocyte extravasation leading to joint destruction and functional disability. The blood vessels in the inflamed synovium are highly dysregulated, resulting in poor delivery of oxygen; this, along with the increased metabolic demand of infiltrating immune cells and inflamed resident cells, results in the lack of key nutrients at the site of inflammation. In these adverse conditions synovial cells must adapt to generate sufficient energy to support their proliferation and activation status, and thus switch their cell metabolism from a resting regulatory state to a highly metabolically active state. This alters redox-sensitive signalling pathways and also results in the accumulation of metabolic intermediates which, in turn, can act as signalling molecules that further exacerbate the inflammatory response. The RA synovium is a multi-cellular tissue, and while many cell types interact to promote the inflammatory response, their metabolic requirements differ. Thus, understanding the complex interplay between hypoxia-induced signalling pathways, metabolic pathways and the inflammatory response will provide better insight into the underlying mechanisms of disease pathogenesis.
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Affiliation(s)
- U Fearon
- Molecular Rheumatology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - M M Hanlon
- Molecular Rheumatology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - S M Wade
- Molecular Rheumatology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - J M Fletcher
- Translational Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
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16
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McGarry T, Biniecka M, Veale DJ, Fearon U. Hypoxia, oxidative stress and inflammation. Free Radic Biol Med 2018; 125:15-24. [PMID: 29601945 DOI: 10.1016/j.freeradbiomed.2018.03.042] [Citation(s) in RCA: 329] [Impact Index Per Article: 54.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 03/20/2018] [Accepted: 03/24/2018] [Indexed: 12/20/2022]
Abstract
Inflammatory Arthritis is characterized by synovial proliferation, neovascularization and leukocyte extravasation leading to joint destruction and functional disability. Efficiency of oxygen supply to the synovium is poor due to the highly dysregulated synovial microvasculature. This along with the increased energy demands of activated infiltrating immune cells and inflamed resident cells leads to an hypoxic microenvironment and mitochondrial dysfunction. This favors an increase of reactive oxygen species, leading to oxidative damage which further promotes inflammation. In this adverse microenvironment synovial cells adapt to generate energy and switch their cell metabolism from a resting regulatory state to a highly metabolically active state which allows them to produce essential building blocks to support their proliferation. This metabolic shift results in the accumulation of metabolic intermediates which act as signaling molecules that further dictate the inflammatory response. Understanding the complex interplay between hypoxia-induced signaling pathways, oxidative stress and mitochondrial function will provide better insight into the underlying mechanisms of disease pathogenesis.
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Affiliation(s)
- Trudy McGarry
- The Department of Molecular Rheumatology, Trinity College Dublin, Ireland
| | - Monika Biniecka
- The Centre for Arthritis and Rheumatic Disease, Dublin Academic Medical Centre, St. Vincent's University Hospital, Elm Park, Dublin 4, Ireland
| | - Douglas J Veale
- The Centre for Arthritis and Rheumatic Disease, Dublin Academic Medical Centre, St. Vincent's University Hospital, Elm Park, Dublin 4, Ireland
| | - Ursula Fearon
- The Department of Molecular Rheumatology, Trinity College Dublin, Ireland.
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17
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Yu R, Li C, Sun L, Jian L, Ma Z, Zhao J, Liu X. Hypoxia induces production of citrullinated proteins in human fibroblast-like synoviocytes through regulating HIF1α. Scand J Immunol 2018; 87:e12654. [PMID: 29484680 DOI: 10.1111/sji.12654] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 02/20/2018] [Indexed: 12/28/2022]
Abstract
Hypoxia is a prominent microenvironment feature in a range of disorders including cancer, rheumatoid arthritis (RA), atherosclerosis, inflammatory bowel disease (IBD), infection and obesity. Hypoxia promotes biological functions of fibroblast-like synoviocytes via regulating hypoxia-inducible factor 1α (HIF1α). Dysregulated protein citrullination in RA drives the production of antibodies to citrullinated proteins, a highly specific biomarker of RA. However, the mechanisms promoting citrullination in RA are not yet fully elucidated. In this study, we investigated whether pathophysiological hypoxia as found in the rheumatoid synovium modulates the citrullination in human fibroblast-like synoviocytes (HFLS). Here, we found that peptidylarginine deiminase 2 (PAD2) and citrullinated proteins were increased in HFLS after exposure to hypoxia. Moreover, knocking down HIF1α by HIF1α siRNA ameliorated the expression of PAD2 and citrullinated proteins. Collectively, this study provides a new mechanism involved in generating citrullinated proteins: hypoxia promotes citrullination and PAD production in HFLS. Concurrently, we also proposed a novel hypoxia involved mechanism in RA pathogenesis. This study deepens our understanding of the role of hypoxia in the pathogenesis of RA and provides a potential therapeutic strategy for RA.
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Affiliation(s)
- R Yu
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing, China
| | - C Li
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing, China
| | - L Sun
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing, China
| | - L Jian
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing, China
| | - Z Ma
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing, China
| | - J Zhao
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing, China
| | - X Liu
- Department of Rheumatology and Immunology, Peking University Third Hospital, Beijing, China
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18
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Hussain MS, Tripathi V. Smoking under hypoxic conditions: a potent environmental risk factor for inflammatory and autoimmune diseases. Mil Med Res 2018; 5:11. [PMID: 29598831 PMCID: PMC5877397 DOI: 10.1186/s40779-018-0158-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2017] [Accepted: 03/14/2018] [Indexed: 12/15/2022] Open
Abstract
Autoimmune disease management presents a significant challenge to medical science. Environmental factors potentially increase the risk of developing inflammatory and autoimmune diseases, such as multiple sclerosis, rheumatoid arthritis, and lupus. Among various environmental stresses, cigarette smoke and hypoxia have both been reported to lead to an enhanced risk of inflammatory and autoimmune diseases.In this review, we shed light on all reported mechanisms whereby cigarette smoke and a hypoxic environment can induce inflammatory and autoimmune diseases and discuss how hypoxic conditions influence the cigarette smoke-induced threat of inflammatory and autoimmune disease development.Cigarette smoke and hypoxia both lead to increased oxidative stress and production of reactive oxygen species and other free radicals, which have various effects including the generation of autoreactive pro-inflammatory T cells and autoantibodies, reductions in T regulatory (Treg) cell activity, and enhanced expression of pro-inflammatory mediators [e.g., interleukin-6 (IL-6), interleukin-4 (IL-4) and interleukin-8 (IL-8)]. Accordingly, smoking and hypoxic environments may synergistically act as potent environmental risk factors for inflammatory and autoimmune diseases. To our knowledge, no studies have reported the direct association of cigarette smoke and hypoxic environments with the risk of developing inflammatory and autoimmune diseases.Future studies exploring the risk of autoimmune disease development in smokers at high altitudes, particularly military personnel and mountaineers who are not acclimatized to high-altitude regions, are required to obtain a better understanding of disease risk as well as its management.
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Affiliation(s)
- Md. Saddam Hussain
- School of Biotechnology, Gautam Buddha University, Greater Noida, Gautam Budh Nagar, Uttar Pradesh 201312 India
| | - Vishwas Tripathi
- School of Biotechnology, Gautam Buddha University, Greater Noida, Gautam Budh Nagar, Uttar Pradesh 201312 India
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19
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Thioredoxin 1 is associated with the proliferation and apoptosis of rheumatoid arthritis fibroblast-like synoviocytes. Clin Rheumatol 2017; 37:117-125. [PMID: 28914370 PMCID: PMC5754431 DOI: 10.1007/s10067-017-3832-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 08/23/2017] [Accepted: 09/07/2017] [Indexed: 11/03/2022]
Abstract
We aimed to investigate the possible effects of thioredoxin 1 (Trx1) on the proliferation and apoptosis of rheumatoid arthritis fibroblast-like synoviocytes (RA-FLSs) and elucidate the possible mechanisms involved. We investigated the distribution and expression of Trx1 in synovial tissues from RA and osteoarthritis (OA) patients by immunohistochemistry and real-time polymerase chain reaction (RT-PCR) analyses. RA-FLSs were isolated and cultured under normoxic (21% oxygen) or hypoxic (3% oxygen) concentrations. Transfection of Trx1-siRNAs and a Trx1 overexpression construct was conducted to manipulate the expression of Trx1. Protein expression was detected by Western blot. Doxorubicin (Adriamycin, ADR) was used to induce apoptosis. LY-294002 was used for the inhibition of PI3K-Akt. Cell proliferation and apoptosis were determined by MTS (3-[4,5-dimethylthiazol-2-yl]-5-[3-carboxymethoxyphenyl]-2-[4-sulfophenyl]-2H-tetrazolium, inner salt) assay and flow cytometry, respectively. The mRNA and protein expression of Trx1 in RA tissues was higher than that in OA tissues. The expression levels of Trx1 and cell proliferation in RA-FLSs were increased under hypoxia in comparison to those under normoxia. In hypoxia, downregulation of Trx1 significantly suppressed FLS proliferation, and the expression of PI3Kp85, phospho-Akt, and Bcl-2, while notably increased FLS apoptosis and the expression of active Caspase3 and Bax. In normoxia, Trx1 overexpression promoted the FLS proliferation and the expression of PI3Kp85, phospho-Akt, and Bcl-2, but inhibited FLS apoptosis and the expression of active Caspase3 and Bax in FLSs. Such effects were partially repressed by LY-294002 treatment. Trx1 may play an important role in regulating the proliferation and apoptosis of RA-FLSs by modulating PI3K-Akt activation.
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20
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Angiogenesis Dysregulation in Psoriatic Arthritis: Molecular Mechanisms. BIOMED RESEARCH INTERNATIONAL 2017; 2017:5312813. [PMID: 28804717 PMCID: PMC5539937 DOI: 10.1155/2017/5312813] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/01/2017] [Revised: 06/05/2017] [Accepted: 06/13/2017] [Indexed: 12/11/2022]
Abstract
There is evidence that psoriatic arthritis is closely linked to angiogenesis. Morphological changes described in blood vessels of psoriatic arthritis joints suggest the presence of a dysregulated angiogenesis resulting in the formation of immature vessels. Even if the reason of this inefficient angiogenesis is still unclear, an imbalance between angiogenic and antiangiogenic factors is probably responsible for inducing a dysregulated angiogenesis in psoriatic arthritis, which seems to be involved in its pathogenesis and clinical features. Nevertheless, among chronic arthritides, while angiogenesis in rheumatoid arthritis has been largely studied with a great amount of literature data, limited data on angiogenesis role in psoriatic arthritis are available. This review article is focused on current knowledge on the mechanisms responsible for dysregulated angiogenesis in psoriatic arthritis.
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21
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Rolf CG, Fu SC, Hopkins C, Luan J, Ip M, Yung SH, Friman G, Qin L, Chan KM. Presence of Bacteria in Spontaneous Achilles Tendon Ruptures. Am J Sports Med 2017; 45:2061-2067. [PMID: 28355086 DOI: 10.1177/0363546517696315] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND The structural pathology of Achilles tendon (AT) ruptures resembles tendinopathy, but the causes remain unknown. Recently, a number of diseases were found to be attributed to bacterial infections, resulting in low-grade inflammation and progressive matrix disturbance. The authors speculate that spontaneous AT ruptures may also be influenced by the presence of bacteria. HYPOTHESIS Bacteria are present in ruptured ATs but not in healthy tendons. STUDY DESIGN Cross-sectional study; Level of evidence, 3. METHODS Patients with spontaneous AT ruptures and patients undergoing anterior cruciate ligament (ACL) reconstruction were recruited for this study. During AT surgical repair, excised tendinopathic tissue was collected, and healthy tendon samples were obtained as controls from hamstring tendon grafts used in ACL reconstruction. Half of every sample was reserved for DNA extraction and the other half for histology. Polymerase chain reaction (PCR) was conducted using 16S rRNA gene universal primers, and the PCR products were sequenced for the identification of bacterial species. A histological examination was performed to compare tendinopathic changes in the case and control samples. RESULTS Five of 20 AT rupture samples were positive for the presence of bacterial DNA, while none of the 23 hamstring tendon samples were positive. Sterile operating and experimental conditions and tests on samples, controlling for harvesting and processing procedures, ruled out the chance of postoperative bacterial contamination. The species identified predominantly belonged to the Staphylococcus genus. AT rupture samples exhibited histopathological features characteristic of tendinopathy, and most healthy hamstring tendon samples displayed normal tendon features. There were no apparent differences in histopathology between the bacterial DNA-positive and bacterial DNA-negative AT rupture samples. CONCLUSION The authors have demonstrated the presence of bacterial DNA in ruptured AT samples. It may suggest the potential involvement of bacteria in spontaneous AT ruptures.
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Affiliation(s)
- Christer G Rolf
- Division of Orthopaedics and Biotechnology, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden.,Lui Che Woo Institute of Innovative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Sai-Chuen Fu
- Lui Che Woo Institute of Innovative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Department of Orthopaedics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Chelsea Hopkins
- Lui Che Woo Institute of Innovative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Department of Orthopaedics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Ju Luan
- Department of Orthopaedics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Margaret Ip
- Department of Microbiology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Shu-Hang Yung
- Lui Che Woo Institute of Innovative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Department of Orthopaedics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Göran Friman
- Section of Infectious Diseases, Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Ling Qin
- Department of Orthopaedics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Musculoskeletal Research Laboratory, Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, China.,Translational Medicine Research and Development Center, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Beijing, China
| | - Kai-Ming Chan
- Lui Che Woo Institute of Innovative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.,Department of Orthopaedics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
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22
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Yang J, Zhao F, Nie J. Anti-rheumatic effects of Aconitum leucostomum Worosch. on human fibroblast-like synoviocyte rheumatoid arthritis cells. Exp Ther Med 2017; 14:453-460. [PMID: 28672953 DOI: 10.3892/etm.2017.4503] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Accepted: 03/03/2017] [Indexed: 12/25/2022] Open
Abstract
The aim of the present study was to investigate the effects of Aconitum leucostomum Worosch. crude drug, processed products and monomer components on human fibroblast-like synoviocyte rheumatoid arthritis (HFLS-RA) cells, and its associated mechanisms. Following drug treatment, cell proliferation was assessed using a Cell Counting Kit-8 assay. Cellular apoptosis and cell cycle were evaluated using flow cytometry. Levels of hypoxia-inducible factor 1α (HIF-1α), vascular endothelial growth factor (VEGF) and toll-like receptor 4 (TLR4) mRNA and protein were evaluated using reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and western blot analysis, respectively. Levels of pro-inflammatory cytokines were evaluated using ELISA. Analysis of cell proliferation indicated that crude drug and processed products markedly inhibited the cell proliferation. Compared with the control group, the apoptosis rates were significantly elevated in all treatment groups (all P<0.05). Furthermore, the proportion of cells in G0/G1 phase was significantly decreased in all treatment groups compared with the control group (all P<0.05). RT-qPCR and western blotting indicated that, compared with the control group, mRNA and protein expression levels of HIF-1α, and TLR4 were significantly downregulated in all treatment groups (P<0.05). The mRNA and protein expression levels of VEGF in all treatment groups were decreased compared with those in the control group, but the difference was not significant. Results from ELISA demonstrated that the levels of interleukin (IL)-6, IL-1β and tumor necrosis factor-α in the cell culture supernatant were all significantly decreased following drug treatment in HFLS-RA cells (all P<0.05). Therefore, A. leucostomum Worosch. crude drug, processed products and monomer components may exert anti-rheumatic effects on HFLS-RA cells, inhibiting cell proliferation and enhancing cellular apoptosis. These effects may be attributable to the downregulated expression of HIF-1α and TLR4, as well as decreased levels of pro-inflammatory cytokines.
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Affiliation(s)
- Junling Yang
- College of Traditional Chinese Medicine, Xinjiang Medical University, Urumqi, Xinjiang 830011, P.R. China
| | - Feicui Zhao
- Department of Pharmacy, Chinese Medicine Hospital Affiliated to Xinjiang Medical University, Urumqi, Xinjiang 830000, P.R. China
| | - Jihong Nie
- Department of Pharmacy, Chinese Medicine Hospital Affiliated to Xinjiang Medical University, Urumqi, Xinjiang 830000, P.R. China
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23
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Toirac A, Giugale JM, Fowler JR. Open Versus Endoscopic Cubital Tunnel In Situ Decompression: A Systematic Review of Outcomes and Complications. Hand (N Y) 2017; 12:229-235. [PMID: 28453355 PMCID: PMC5480665 DOI: 10.1177/1558944716662018] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Endoscopic cubital tunnel release has been proposed as an alternative to open in situ release. However, it is difficult to analyze outcomes after endoscopic release, as only a few small case series exist. METHODS The electronic databases of PubMed (1960-June 2014) were systematically screened for studies related to endoscopic cubital tunnel release or open in situ cubital tunnel release. Baseline characteristics, clinical scores, and complication rates were abstracted. The binary outcome was defined as rate of excellent/good response versus fair/poor. Complications were recorded into 3 categories: wound problems, persistent ulnar nerve symptoms, and other. RESULTS We included 8 articles that reported the clinical outcomes after surgical intervention including a total of 494 patients (344 endoscopic, 150 open in situ). The pooled rate of excellent/good was 92.0% (88.8%-95.2%) for endoscopic and 82.7% (76.15%-89.2%) for open. We identified 18 articles that detailed complications including a total of 1108 patients (691 endoscopic, 417 open). The 4 articles that listed complication rates for both endoscopic and open techniques were analyzed and showed a pooled odds ratio of 0.280 (95% confidence interval, 0.125-0.625), indicating that endoscopic patients have reduced odds of complications. CONCLUSIONS The results of this systematic review suggest that there is a difference in clinical outcomes between the open in situ and endoscopic cubital tunnel release, with the endoscopic technique being superior in regard to both complication rates along with patient satisfaction.
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Affiliation(s)
| | - Juan M. Giugale
- University of Pittsburgh Medical Center, PA, USA,Juan M. Giugale, Orthopaedic Surgery Resident, Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, University of Pittsburgh, 3471 Fifth Avenue #1010, Pittsburgh, PA 15203, USA.
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24
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McGarry T, Biniecka M, Gao W, Cluxton D, Canavan M, Wade S, Wade S, Gallagher L, Orr C, Veale DJ, Fearon U. Resolution of TLR2-induced inflammation through manipulation of metabolic pathways in Rheumatoid Arthritis. Sci Rep 2017; 7:43165. [PMID: 28225071 PMCID: PMC5320554 DOI: 10.1038/srep43165] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 01/20/2017] [Indexed: 12/25/2022] Open
Abstract
During inflammation, immune cells activated by toll-like receptors (TLRs) have the ability to undergo a bioenergetic switch towards glycolysis in a manner similar to that observed in tumour cells. While TLRs have been implicated in the pathogenesis of rheumatoid arthritis (RA), their role in regulating cellular metabolism in synovial cells, however, is still unknown. In this study, we investigated the effect of TLR2-activation on mitochondrial function and bioenergetics in primary RA-synovial fibroblast cells (RASFC), and further determined the role of glycolytic blockade on TLR2-induced inflammation in RASFC using glycolytic inhibitor 3-(3-pyridinyl)-1-(4-pyridinyl)-2-propen-1-one (3PO). We observed an increase in mitochondrial mutations, ROS and lipid peroxidation, paralleled by a decrease in the mitochondrial membrane potential in TLR2-stimulated RASFC. This was mirrored by differential regulation of key mitochondrial genes, coupled with alteration in mitochondrial morphology. TLR2-activation also regulated changes in the bioenergetic profile of RASFC, inducing PKM2 nuclear translocation, decreased mitochondrial respiration and ATP synthesis and increased glycolysis:respiration ratio, suggesting a metabolic switch. Finally, using 3PO, we demonstrated that glycolytic blockade reversed TLR2-induced pro-inflammatory mechanisms including invasion, migration, cytokine/chemokine secretion and signalling pathways. These findings support the concept of complex interplay between innate immunity, oxidative damage and oxygen metabolism in RA pathogenesis.
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Affiliation(s)
- Trudy McGarry
- Molecular Rheumatology, School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
- Centre for Arthritis and Rheumatic Diseases, St. Vincent’s University Hospital, Dublin, Ireland
| | - Monika Biniecka
- Centre for Arthritis and Rheumatic Diseases, St. Vincent’s University Hospital, Dublin, Ireland
| | - Wei Gao
- Centre for Arthritis and Rheumatic Diseases, St. Vincent’s University Hospital, Dublin, Ireland
| | - Deborah Cluxton
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Mary Canavan
- Molecular Rheumatology, School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
- Centre for Arthritis and Rheumatic Diseases, St. Vincent’s University Hospital, Dublin, Ireland
| | - Siobhan Wade
- Molecular Rheumatology, School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Sarah Wade
- Molecular Rheumatology, School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
- Centre for Arthritis and Rheumatic Diseases, St. Vincent’s University Hospital, Dublin, Ireland
| | - Lorna Gallagher
- Centre for Arthritis and Rheumatic Diseases, St. Vincent’s University Hospital, Dublin, Ireland
| | - Carl Orr
- Centre for Arthritis and Rheumatic Diseases, St. Vincent’s University Hospital, Dublin, Ireland
| | - Douglas J. Veale
- Centre for Arthritis and Rheumatic Diseases, St. Vincent’s University Hospital, Dublin, Ireland
| | - Ursula Fearon
- Molecular Rheumatology, School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
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25
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Glucose-6-Phosphate Isomerase (G6PI) Mediates Hypoxia-Induced Angiogenesis in Rheumatoid Arthritis. Sci Rep 2017; 7:40274. [PMID: 28067317 PMCID: PMC5220294 DOI: 10.1038/srep40274] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 12/05/2016] [Indexed: 12/22/2022] Open
Abstract
The higher level of Glucose-6-phosphate isomerase (G6PI) has been found in both synovial tissue and synovial fluid of rheumatoid arthritis (RA) patients, while the function of G6PI in RA remains unclear. Herein we found the enrichment of G6PI in microvascular endothelial cells of synovial tissue in RA patients, where a 3% O2 hypoxia environment has been identified. In order to determine the correlation between the high G6PI level and the low oxygen concentration in RA, a hypoxia condition (~3% O2) in vitro was applied to mimic the RA environment in vivo. Hypoxia promoted cellular proliferation of rheumatoid arthritis synovial fibroblasts (RASFs), and induced cell migration and angiogenic tube formation of human dermal microvascular endothelial cells (HDMECs), which were accompanied with the increased expression of G6PI and HIF-1α. Through application of G6PI loss-of-function assays, we confirmed the requirement of G6PI expression for those hypoxia-induced phenotype in RA. In addition, we demonstrated for the first time that G6PI plays key roles in regulating VEGF secretion from RASFs to regulate the hypoxia-induced angiogenesis in RA. Taken together, we demonstrated a novel pathway regulating hypoxia-induced angiogenesis in RA mediated by G6PI.
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26
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Rajaram A, Ioussoufovitch S, Morrison LB, St Lawrence K, Lee TY, Bureau Y, Diop M. Joint blood flow is more sensitive to inflammatory arthritis than oxyhemoglobin, deoxyhemoglobin, and oxygen saturation. BIOMEDICAL OPTICS EXPRESS 2016; 7:3843-3854. [PMID: 27867697 PMCID: PMC5102556 DOI: 10.1364/boe.7.003843] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Revised: 08/23/2016] [Accepted: 08/28/2016] [Indexed: 05/11/2023]
Abstract
Joint hypoxia plays a central role in the progression and perpetuation of rheumatoid arthritis (RA). Thus, optical techniques that can measure surrogate markers of hypoxia such as blood flow, oxyhemoglobin, deoxyhemoglobin, and oxygen saturation are being developed to monitor RA. The purpose of the current study was to compare the sensitivity of these physiological parameters to arthritis. Experiments were conducted in a rabbit model of RA and the results revealed that joint blood flow was the most sensitive to arthritis and could detect a statistically significant difference (p<0.05, power = 0.8) between inflamed and healthy joints with a sample size of only four subjects. Considering that this a quantitative technique, the high sensitivity to arthritis suggests that joint perfusion has the potential to become a potent tool for monitoring disease progression and treatment response in RA.
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Affiliation(s)
- Ajay Rajaram
- Imaging Program, Lawson Health Research Institute, 268 Grosvenor Street, London, Ontario, N6A 4V2, Canada
- Department of Medical Biophysics, Western University, London, Ontario, N6A 5C1, Canada
| | - Seva Ioussoufovitch
- Imaging Program, Lawson Health Research Institute, 268 Grosvenor Street, London, Ontario, N6A 4V2, Canada
- Department of Medical Biophysics, Western University, London, Ontario, N6A 5C1, Canada
| | - Laura B. Morrison
- Imaging Program, Lawson Health Research Institute, 268 Grosvenor Street, London, Ontario, N6A 4V2, Canada
- Department of Medical Biophysics, Western University, London, Ontario, N6A 5C1, Canada
| | - Keith St Lawrence
- Imaging Program, Lawson Health Research Institute, 268 Grosvenor Street, London, Ontario, N6A 4V2, Canada
- Department of Medical Biophysics, Western University, London, Ontario, N6A 5C1, Canada
| | - Ting-Yim Lee
- Imaging Program, Lawson Health Research Institute, 268 Grosvenor Street, London, Ontario, N6A 4V2, Canada
- Department of Medical Biophysics, Western University, London, Ontario, N6A 5C1, Canada
- Imaging Program, Robarts Research Institute, 100 Perth Drive, London, Ontario N6A 5K8, Canada
| | - Yves Bureau
- Imaging Program, Lawson Health Research Institute, 268 Grosvenor Street, London, Ontario, N6A 4V2, Canada
| | - Mamadou Diop
- Imaging Program, Lawson Health Research Institute, 268 Grosvenor Street, London, Ontario, N6A 4V2, Canada
- Department of Medical Biophysics, Western University, London, Ontario, N6A 5C1, Canada
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Rohm I, Aderhold N, Ratka J, Goebel B, Franz M, Pistulli R, Gecks T, Figulla HR, Yilmaz A, Jung C. Hypobaric hypoxia in 3000 m altitude leads to a significant decrease in circulating plasmacytoid dendritic cells in humans. Clin Hemorheol Microcirc 2016; 63:257-65. [DOI: 10.3233/ch-152035] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Lin N, Simon MC. Hypoxia-inducible factors: key regulators of myeloid cells during inflammation. J Clin Invest 2016; 126:3661-3671. [PMID: 27599290 DOI: 10.1172/jci84426] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Hypoxia is a prominent characteristic of many acute or chronic inflammatory diseases, and exerts significant influence on their progression. Macrophages and neutrophils are major cellular components of innate immunity and contribute not only to O2 deprivation at the site of inflammation, but also alter many of their functions in response to hypoxia to either facilitate or suppress inflammation. Hypoxia stabilizes HIF-αs in macrophages and neutrophils, and these O2-sensitive transcription factors are key regulators of inflammatory responses in myeloid cells. In this review, we will summarize our current understanding of the role of HIF-αs in shaping macrophage and neutrophil functions in the pathogenesis and progression of multiple inflammatory diseases.
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Opposing regulation of the late phase TNF response by mTORC1-IL-10 signaling and hypoxia in human macrophages. Sci Rep 2016; 6:31959. [PMID: 27558590 PMCID: PMC4997257 DOI: 10.1038/srep31959] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Accepted: 08/01/2016] [Indexed: 12/17/2022] Open
Abstract
Tumor necrosis factor (TNF) is best known for inducing a rapid but transient NF-κB-mediated inflammatory response. We investigated later phases of TNF signaling, after the initial transient induction of inflammatory genes has subsided, in primary human macrophages. TNF signaling induced expression of late response genes, including inhibitors of NF-κB and TLR signaling, with delayed and sustained kinetics 6–24 hr after TNF stimulation. A subset of late phase genes was expressed in rheumatoid arthritis synovial macrophages, confirming their expression under chronic inflammatory conditions in vivo. Expression of a subset of late phase genes was mediated by autocrine IL-10, which activated STAT3 with delayed kinetics. Hypoxia, which occurs at sites of infection or inflammation where TNF is expressed, suppressed this IL-10-STAT3 autocrine loop and expression of late phase genes. TNF-induced expression of IL-10 and downstream genes was also dependent on signaling by mTORC1, which senses the metabolic state of cells and is modulated by hypoxia. These results reveal an mTORC1-dependent IL-10-mediated late phase response to TNF by primary human macrophages, and identify suppression of IL-10 responses as a new mechanism by which hypoxia can promote inflammation. Thus, hypoxic and metabolic pathways may modulate TNF responses during chronic inflammation.
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Zimmermann-Geller B, Köppert S, Fischer S, Cabrera-Fuentes HA, Lefèvre S, Rickert M, Steinmeyer J, Rehart S, Umscheid T, Schönburg M, Müller-Ladner U, Preissner KT, Frommer KW, Neumann E. Influence of Extracellular RNAs, Released by Rheumatoid Arthritis Synovial Fibroblasts, on Their Adhesive and Invasive Properties. THE JOURNAL OF IMMUNOLOGY 2016; 197:2589-97. [PMID: 27549172 DOI: 10.4049/jimmunol.1501580] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Accepted: 07/27/2016] [Indexed: 11/19/2022]
Abstract
Extracellular RNA (exRNA) has been characterized as a molecular alarm signal upon cellular stress or tissue injury and to exert biological functions as a proinflammatory, prothrombotic, and vessel permeability-regulating factor. In this study, we investigated the contribution of exRNA and its antagonist RNase1 in a chronic inflammatory joint disease, rheumatoid arthritis (RA). Upon immunohistochemical inspection of RA, osteoarthritis (OA), and psoriatic arthritis synovium, exRNA was detectable only in the RA synovial lining layer, whereas extracellular DNA was detectable in various areas of synovial tissue. In vitro, exRNA (150-5000 nt) was released by RA synovial fibroblasts (RASF) under hypoxic conditions but not under normoxia or TNF-α treatment. RNase activity was increased in synovial fluid from RA and OA patients compared with psoriatic arthritis patients, whereas RNase activity of RASF and OASF cultures was not altered by hypoxia. Reduction of exRNA by RNase1 treatment decreased adhesion of RASF to cartilage, but it had no influence on their cell proliferation or adhesion to endothelial cells. In vivo, treatment with RNase1 reduced RASF invasion into coimplanted cartilage in the SCID mouse model of RA. We also analyzed the expression of neuropilins in synovial tissue and SF, as they may interact with vascular endothelial growth factor signaling and exRNA. The data support the concepts that the exRNA/RNase1 system participates in RA pathophysiology and that RASF are influenced by exRNA in a prodestructive manner.
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Affiliation(s)
- Birgit Zimmermann-Geller
- Department of Internal Medicine and Rheumatology, Justus Liebig University Giessen, Kerckhoff Clinic, 61231 Bad Nauheim, Germany
| | - Sina Köppert
- Department of Internal Medicine and Rheumatology, Justus Liebig University Giessen, Kerckhoff Clinic, 61231 Bad Nauheim, Germany
| | - Silvia Fischer
- Department of Biochemistry, Medical School, Justus Liebig University Giessen, 35392 Giessen, Germany
| | - Hector A Cabrera-Fuentes
- Department of Biochemistry, Medical School, Justus Liebig University Giessen, 35392 Giessen, Germany; Department of Microbiology, Kazan Federal University, Kazan 420008, Russian Federation
| | - Stephanie Lefèvre
- Department of Internal Medicine and Rheumatology, Justus Liebig University Giessen, Kerckhoff Clinic, 61231 Bad Nauheim, Germany
| | - Markus Rickert
- Department of Orthopedics and Orthopedic Surgery, University Hospital Giessen and Marburg, 35392 Giessen, Germany
| | - Jürgen Steinmeyer
- Laboratory for Experimental Orthopedics, Department of Orthopedics and Orthopedic Surgery, University Hospital Giessen and Marburg, 35392 Giessen, Germany
| | - Stefan Rehart
- Department of Orthopedics and Trauma Surgery, Markus Hospital, 60431 Frankfurt, Germany
| | - Thomas Umscheid
- Department of Vascular Surgery, HELIOS William Harvey Clinic, 61231 Bad Nauheim, Germany; and
| | - Markus Schönburg
- Department of Cardiac Surgery, Kerckhoff Clinic, 61231 Bad Nauheim, Germany
| | - Ulf Müller-Ladner
- Department of Internal Medicine and Rheumatology, Justus Liebig University Giessen, Kerckhoff Clinic, 61231 Bad Nauheim, Germany
| | - Klaus T Preissner
- Department of Biochemistry, Medical School, Justus Liebig University Giessen, 35392 Giessen, Germany; Department of Microbiology, Kazan Federal University, Kazan 420008, Russian Federation
| | - Klaus W Frommer
- Department of Internal Medicine and Rheumatology, Justus Liebig University Giessen, Kerckhoff Clinic, 61231 Bad Nauheim, Germany
| | - Elena Neumann
- Department of Internal Medicine and Rheumatology, Justus Liebig University Giessen, Kerckhoff Clinic, 61231 Bad Nauheim, Germany;
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Quiñonez-Flores CM, González-Chávez SA, Pacheco-Tena C. Hypoxia and its implications in rheumatoid arthritis. J Biomed Sci 2016; 23:62. [PMID: 27549205 PMCID: PMC4994473 DOI: 10.1186/s12929-016-0281-0] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 08/09/2016] [Indexed: 02/07/2023] Open
Abstract
Alterations in tissue oxygen pressure contribute to a number of diseases, including rheumatoid arthritis (RA). Low partial pressure of oxygen, a condition known as hypoxia, is a relevant feature in RA since it is involved in angiogenesis, inflammation, apoptosis, cartilage degradation, energy metabolism, and oxidative damage. Therefore, alterations in hypoxia-related signaling pathways are considered potential mechanisms of disease pathogenesis. The objective of this review is to highlight and update our current knowledge of the role of hypoxia in the pathogenesis of RA. We describe the experimental evidence that RA synovial tissue exists in a hypoxic state, as well as the origin and involvement of synovial hypoxia in different aspects of the pathogenic process.
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Affiliation(s)
- Celia María Quiñonez-Flores
- Facultad de Medicina y Ciencias Biomédicas, Universidad Autónoma de Chihuahua, Circuito No.1, Nuevo Campus Universitario, Chihuahua, C.P. 31240 México
- Facultad de Ciencias de la Cultura Física, Universidad Autónoma de Chihuahua, Circuito No.1, Nuevo Campus Universitario, Chihuahua, C.P. 31240 México
| | - Susana Aideé González-Chávez
- Facultad de Medicina y Ciencias Biomédicas, Universidad Autónoma de Chihuahua, Circuito No.1, Nuevo Campus Universitario, Chihuahua, C.P. 31240 México
- Facultad de Ciencias de la Cultura Física, Universidad Autónoma de Chihuahua, Circuito No.1, Nuevo Campus Universitario, Chihuahua, C.P. 31240 México
| | - César Pacheco-Tena
- Facultad de Medicina y Ciencias Biomédicas, Universidad Autónoma de Chihuahua, Circuito No.1, Nuevo Campus Universitario, Chihuahua, C.P. 31240 México
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32
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Hypoxia, mitochondrial dysfunction and synovial invasiveness in rheumatoid arthritis. Nat Rev Rheumatol 2016; 12:385-97. [DOI: 10.1038/nrrheum.2016.69] [Citation(s) in RCA: 173] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Biniecka M, Canavan M, McGarry T, Gao W, McCormick J, Cregan S, Gallagher L, Smith T, Phelan JJ, Ryan J, O'Sullivan J, Ng CT, Veale DJ, Fearon U. Dysregulated bioenergetics: a key regulator of joint inflammation. Ann Rheum Dis 2016; 75:2192-2200. [PMID: 27013493 PMCID: PMC5136702 DOI: 10.1136/annrheumdis-2015-208476] [Citation(s) in RCA: 165] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Revised: 01/28/2016] [Accepted: 03/03/2016] [Indexed: 11/09/2022]
Abstract
Objectives This study examines the relationship between synovial hypoxia and cellular bioenergetics with synovial inflammation. Methods Primary rheumatoid arthritis synovial fibroblasts (RASF) were cultured with hypoxia, dimethyloxalylglycine (DMOG) or metabolic intermediates. Mitochondrial respiration, mitochondrial DNA mutations, cell invasion, cytokines, glucose and lactate were quantified using specific functional assays. RASF metabolism was assessed by the XF24-Flux Analyzer. Mitochondrial structural morphology was assessed by transmission electron microscopy (TEM). In vivo synovial tissue oxygen (tpO2 mmHg) was measured in patients with inflammatory arthritis (n=42) at arthroscopy, and markers of glycolysis/oxidative phosphorylation (glyceraldehyde 3-phosphate dehydrogenase (GAPDH), PKM2, GLUT1, ATP) were quantified by immunohistology. A subgroup of patients underwent contiguous MRI and positron emission tomography (PET)/CT imaging. RASF and human dermal microvascular endothelial cells (HMVEC) migration/angiogenesis, transcriptional activation (HIF1α, pSTAT3, Notch1-IC) and cytokines were examined in the presence of glycolytic inhibitor 3-(3-Pyridinyl)-1-(4-pyridinyl)-2-propen-1-one (3PO). Results DMOG significantly increased mtDNA mutations, mitochondrial membrane potential, mitochondrial mass, reactive oxygen species and glycolytic RASF activity with concomitant attenuation of mitochondrial respiration and ATP activity (all p<0.01). This was coupled with altered mitochondrial morphology. Hypoxia-induced lactate levels (p<0.01), which in turn induced basic fibroblast growth factor (bFGF) secretion and RASF invasiveness (all p<0.05). In vivo glycolytic markers were inversely associated with synovial tpO2 levels <20 mm Hg, in contrast ATP was significantly reduced (all p<0.05). Decrease in GAPDH and GLUT1 was paralleled by an increase in in vivo tpO2 in tumour necrosis factor alpha inhibitor (TNFi) responders. Novel PET/MRI hybrid imaging demonstrated close association between metabolic activity and inflammation. 3PO significantly inhibited RASF invasion/migration, angiogenic tube formation, secretion of proinflammatory mediators (all p<0.05), and activation of HIF1α, pSTAT3 and Notch-1IC under normoxic and hypoxic conditions. Conclusions Hypoxia alters cellular bioenergetics by inducing mitochondrial dysfunction and promoting a switch to glycolysis, supporting abnormal angiogenesis, cellular invasion and pannus formation.
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Affiliation(s)
- M Biniecka
- Centre for Arthritis and Rheumatic Diseases, Dublin Academic Medical Centre, St. Vincent's University Hospital, Dublin, Ireland
| | - M Canavan
- Department of Molecular Rheumatology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - T McGarry
- Department of Molecular Rheumatology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - W Gao
- Centre for Arthritis and Rheumatic Diseases, Dublin Academic Medical Centre, St. Vincent's University Hospital, Dublin, Ireland
| | - J McCormick
- Centre for Arthritis and Rheumatic Diseases, Dublin Academic Medical Centre, St. Vincent's University Hospital, Dublin, Ireland
| | - S Cregan
- Centre for Arthritis and Rheumatic Diseases, Dublin Academic Medical Centre, St. Vincent's University Hospital, Dublin, Ireland
| | - L Gallagher
- Centre for Arthritis and Rheumatic Diseases, Dublin Academic Medical Centre, St. Vincent's University Hospital, Dublin, Ireland
| | - T Smith
- Centre for Arthritis and Rheumatic Diseases, Dublin Academic Medical Centre, St. Vincent's University Hospital, Dublin, Ireland
| | - J J Phelan
- Department of Surgery, Trinity College Dublin, St James's Hospital, Dublin, Ireland
| | - J Ryan
- Department of Radiology, School of Medicine and Biomedical Sciences, University College Dublin, Dublin, Ireland
| | - J O'Sullivan
- Department of Surgery, Trinity College Dublin, St James's Hospital, Dublin, Ireland
| | - C T Ng
- Department of Rheumatology and Immunology, Singapore General Hospital, Singapore, Singapore
| | - D J Veale
- Centre for Arthritis and Rheumatic Diseases, Dublin Academic Medical Centre, St. Vincent's University Hospital, Dublin, Ireland
| | - U Fearon
- Department of Molecular Rheumatology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
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Ferrari M, Onuoha SC, Pitzalis C. Going with the flow: harnessing the power of the vasculature for targeted therapy in rheumatoid arthritis. Drug Discov Today 2015; 21:172-179. [PMID: 26523772 DOI: 10.1016/j.drudis.2015.10.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 09/30/2015] [Accepted: 10/16/2015] [Indexed: 12/17/2022]
Abstract
Rheumatoid arthritis (RA) is a chronic, systemic, autoimmune disease that leads to excessive joint inflammation and is associated with significant morbidity and mortality. Although much is still to be learned about the aetiology RA, a growing body of evidence suggests that an altered vascular environment is an important aspect of its pathophysiology. In this context, RA shares many similarities with cancer, and it is expected that several angiogenic targets in cancer might be relevant to the treatment of RA. Here, we discuss how these targets can be combined with advances in drug development to generate the next generation of RA therapeutics.
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Affiliation(s)
- Mathieu Ferrari
- William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK.
| | - Shimobi C Onuoha
- William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Costantino Pitzalis
- William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
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Fujii W, Kawahito Y, Nagahara H, Kukida Y, Seno T, Yamamoto A, Kohno M, Oda R, Taniguchi D, Fujiwara H, Ejima A, Kishida T, Mazda O, Ashihara E. Monocarboxylate Transporter 4, Associated With the Acidification of Synovial Fluid, Is a Novel Therapeutic Target for Inflammatory Arthritis. Arthritis Rheumatol 2015. [DOI: 10.1002/art.39270] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Wataru Fujii
- Kyoto Prefectural University of Medicine; Kyoto Japan
| | | | | | - Yuji Kukida
- Kyoto Prefectural University of Medicine; Kyoto Japan
| | - Takahiro Seno
- Kyoto Prefectural University of Medicine; Kyoto Japan
| | | | | | - Ryo Oda
- Kyoto Prefectural University of Medicine; Kyoto Japan
| | | | | | - Akika Ejima
- Kyoto Prefectural University of Medicine; Kyoto Japan
| | | | - Osam Mazda
- Kyoto Prefectural University of Medicine; Kyoto Japan
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36
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Li GF, Qin YH, Du PQ. Andrographolide inhibits the migration, invasion and matrix metalloproteinase expression of rheumatoid arthritis fibroblast-like synoviocytes via inhibition of HIF-1α signaling. Life Sci 2015; 136:67-72. [DOI: 10.1016/j.lfs.2015.06.019] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Revised: 06/09/2015] [Accepted: 06/29/2015] [Indexed: 12/16/2022]
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37
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Fan SS, Zong M, Zhang H, Lu Y, Lu TB, Fan LY. Decreased expression of alpha-enolase inhibits the proliferation of hypoxia-induced rheumatoid arthritis fibroblasts-like synoviocytes. Mod Rheumatol 2015; 25:701-7. [DOI: 10.3109/14397595.2015.1014141] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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38
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Goodman SM, Ravi B, Hawker G. Outcomes in rheumatoid arthritis patients undergoing total joint arthroplasty. ACTA ACUST UNITED AC 2014. [DOI: 10.2217/ijr.14.47] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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39
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Redox-Mediated Angiogenesis in the Hypoxic Joint of Inflammatory Arthritis. Arthritis Rheumatol 2014; 66:3300-10. [DOI: 10.1002/art.38822] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Accepted: 08/07/2014] [Indexed: 01/15/2023]
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40
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Swales C, Athanasou NA, Knowles HJ. Angiopoietin-like 4 is over-expressed in rheumatoid arthritis patients: association with pathological bone resorption. PLoS One 2014; 9:e109524. [PMID: 25289668 PMCID: PMC4188739 DOI: 10.1371/journal.pone.0109524] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Accepted: 09/10/2014] [Indexed: 11/17/2022] Open
Abstract
INTRODUCTION Osteoclasts are responsible for the bone loss associated with rheumatoid arthritis (RA). The secreted adipokine angiopoietin-like 4 (ANGPTL4) specifically increases osteoclast-mediated bone resorption. We have investigated expression of ANGPTL4 and its regulatory transcription factor, hypoxia-inducible factor-1 alpha (HIF-1α), in osteoclasts and other cells within rheumatoid synovium. We have also examined whether circulating levels of ANGPTL4 differ in RA patients compared with that in normal controls or patients with osteoarthritis (OA). RESULTS Immunohistochemical analysis revealed that bone-apposing osteoclasts within the rheumatoid synovium express both ANGPTL4 and HIF-1α. ANGPTL4 was also strongly expressed in synovial lining cells, endothelial cells, stromal cells, CD68+ macrophages and plasma cells within RA synovium. Little ANGPTL4 was evident in normal synovial tissue. This reflected the over-expression of HIF-1α in rheumatoid versus normal synovial tissue. The concentration of ANGPTL4 was higher in both the serum and the synovial fluid of RA patients than in patients with OA or normal controls. High serum ANGPTL4 associated with elevated levels of the serum marker of bone resorption, receptor activator for nuclear factor κB ligand (RANKL). CONCLUSIONS Over-expression of ANGPTL4 in multiple cell types within the rheumatoid synovium potentially provides a local pool of ANGPTL4 to stimulate osteoclast-mediated bone resorption in RA. Additionally, correlation of high serum ANGPTL4 with circulating RANKL suggests that ANGPTL4 may represent a novel marker for bone destruction in RA.
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Affiliation(s)
- Catherine Swales
- Botnar Research Centre, Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, United Kingdom
| | - Nicholas A Athanasou
- Pathology Department, Nuffield Orthopaedic Centre, University of Oxford, Oxford, United Kingdom
| | - Helen J Knowles
- Botnar Research Centre, Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, United Kingdom
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Ravi B, Croxford R, Austin PC, Hollands S, Paterson JM, Bogoch E, Kreder H, Hawker GA. Increased Surgeon Experience With Rheumatoid Arthritis Reduces the Risk of Complications Following Total Joint Arthroplasty. Arthritis Rheumatol 2014; 66:488-96. [DOI: 10.1002/art.38205] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Accepted: 09/19/2013] [Indexed: 01/01/2023]
Affiliation(s)
- Bheeshma Ravi
- University of Toronto and Women's College Hospital; Toronto, Ontario Canada
| | - Ruth Croxford
- Institute for Clinical Evaluative Sciences; Toronto, Ontario Canada
| | - Peter C. Austin
- University of Toronto and Institute for Clinical Evaluative Sciences; Toronto, Ontario Canada
| | - Simon Hollands
- Institute for Clinical Evaluative Sciences; Toronto, Ontario Canada
| | - J. Michael Paterson
- University of Toronto and Institute for Clinical Evaluative Sciences; Toronto, Ontario Canada
| | - Earl Bogoch
- University of Toronto and St. Michael's Hospital; Toronto, Ontario Canada
| | - Hans Kreder
- University of Toronto and Institute for Clinical Evaluative Sciences; Toronto, Ontario Canada
| | - Gillian A. Hawker
- University of Toronto, Institute for Clinical Evaluative Sciences, and Women's College Hospital; Toronto, Ontario Canada
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42
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Gao W, McCormick J, Connolly M, Balogh E, Veale DJ, Fearon U. Hypoxia and STAT3 signalling interactions regulate pro-inflammatory pathways in rheumatoid arthritis. Ann Rheum Dis 2014; 74:1275-83. [PMID: 24525913 DOI: 10.1136/annrheumdis-2013-204105] [Citation(s) in RCA: 96] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Accepted: 01/24/2014] [Indexed: 02/03/2023]
Abstract
OBJECTIVE To examine the effect of hypoxia on Signal Transducer and Activator of Transcription 3 (STAT3)-induced pro-inflammatory pathways in rheumatoid arthritis (RA). METHODS Detection of phospho-STAT3 was assessed in RA synovial tissue and fibroblasts (RASFC) by immunohistology/immunofluorescence. Primary RASFCs and a normal synoviocyte cell line (K4IM) were cultured under hypoxic and normoxic conditions±Stat3-siRNA, HIF-siRNA or WP1066 (JAK2-inhibitor). HIF1α, p-STAT3, p-STAT1 and Notch-1IC protein expression were analysed by western blot. Functional mechanisms were quantified by invasion chamber, matrigel and migration assays. IL-6, IL-8, IL-10 and matrixmetalloproteinases (MMP)-3 were quantified by ELISA. Notch-1 receptor, its DLL-4 ligand and downstream target genes (hrt-1, hrt-2) were quantified by real-time PCR. The effect of WP1066 on spontaneous secretion of pro/anti-inflammatory cytokines and Notch signalling was examined in RA synovial explants ex vivo. RESULTS p-STAT3 was increased in RA synovium compared with control (p<0.05). Hypoxia induced p-STAT3, p-STAT1 and HIF1α expression, an effect blocked by Stat3-siRNA and WP1066. Hypoxia-induced cell invasion, migration and cytokine production were inhibited by Stat3-siRNA (p<0.05) and WP1066 (p<0.05). While HIF1α siRNA inhibited hypoxia-induced p-STAT3 detection, Stat3-siRNA also inhibited hypoxia-induced HIF1α. Furthermore, hypoxia-induced Notch-1IC, DLL4, hrt-1 and -2 expression were significantly inhibited by WP1066 (p<0.05). Finally, in RA synovial explant cultures ex vivo, WP1066 decreased spontaneous secretion of IL-6, IL-8 and MMP3 (p<0.05), Notch-1 mRNA (p<0.05) and induced IL-10 (p<0.05). CONCLUSIONS This is the first study to provide evidence of a functional link between HIF1α, STAT3 and Notch-1 signalling in the regulation of pro-inflammatory mechanisms in RA, and further supports a role for STAT blockade in the treatment of RA.
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Affiliation(s)
- Wei Gao
- Translational Research Group, Dublin Academic Medical Centre, St Vincent's University Hospital, Dublin, Ireland
| | - Jennifer McCormick
- Translational Research Group, Dublin Academic Medical Centre, St Vincent's University Hospital, Dublin, Ireland
| | - Mary Connolly
- Translational Research Group, Dublin Academic Medical Centre, St Vincent's University Hospital, Dublin, Ireland
| | - Emese Balogh
- Translational Research Group, Dublin Academic Medical Centre, St Vincent's University Hospital, Dublin, Ireland
| | - Douglas J Veale
- Translational Research Group, Dublin Academic Medical Centre, St Vincent's University Hospital, Dublin, Ireland
| | - Ursula Fearon
- Translational Research Group, Dublin Academic Medical Centre, St Vincent's University Hospital, Dublin, Ireland
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Li GQ, Liu D, Zhang Y, Qian YY, Zhu YD, Guo SY, Sunagawa M, Hisamitsu T, Liu YQ. Anti-invasive effects of celastrol in hypoxia-induced fibroblast-like synoviocyte through suppressing of HIF-1α/CXCR4 signaling pathway. Int Immunopharmacol 2013; 17:1028-36. [PMID: 24144813 DOI: 10.1016/j.intimp.2013.10.006] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2013] [Revised: 10/07/2013] [Accepted: 10/07/2013] [Indexed: 11/18/2022]
Abstract
Rheumatoid arthritis (RA) joints are in a hypoxic condition. Hypoxia-induced migration and invasion of fibroblast-like synoviocytes (FLSs) are considered to play a critical role in the pathogenesis of RA. Among the key genes upregulated by hypoxia-inducible factor-1α (HIF-1α), CXC chemokine receptor 4 (CXCR4) plays an important role in FLS migration and invasion. Our previous studies have shown that celastrol exerts anti-arthritic effects by inhibiting FLS migration and invasion under normoxic conditions. However, the effect and molecular mechanisms underlying the effect of celastrol on hypoxia-induced FLS migration and invasion are poorly understood. In the present study, we assessed the effect of celastrol on hypoxia-induced FLS migration and invasion. Results showed that celastrol suppressed hypoxia-induced FLS migration and invasion. In addition, we also found that celastrol inhibited hypoxia-induced CXCR4 expression at both the mRNA and the protein levels in RA-FLSs. Meanwhile, it is revealed that celastrol inhibited the transcriptional activity of CXCR4 under hypoxic conditions by suppressing the binding activity of HIF-1α in the CXCR4 promoter, and blocked hypoxia-induced accumulation of nuclear HIF-1α. Furthermore, treatment with HIF-1α inhibitor reduced the hypoxia-induced expression and transcriptional activity of CXCR4. In conclusion, our results indicate that celastrol inhibits hypoxia-induced migration and invasion via suppression of HIF-1α mediated CXCR4 expression in FLSs under hypoxic conditions. These results provide a strong rationale for further testing and validation of the use of celastrol as a new alternative for using in the treatment of RA.
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Affiliation(s)
- Guo-qing Li
- Department of Rheumatology, Clinical Medical College, Yangzhou University, Yangzhou 225000, China
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Effect of hypoxia/reoxygenation on the cytokine-induced production of nitric oxide and superoxide anion in cultured osteoarthritic synoviocytes. Osteoarthritis Cartilage 2013; 21:874-81. [PMID: 23523904 DOI: 10.1016/j.joca.2013.03.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2012] [Revised: 02/11/2013] [Accepted: 03/13/2013] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Hypoxia/reoxygenation (H/R) is an important feature in the osteoarthritis (OA) physiopathology. Nitric oxide (NO) is a significant proinflammatory mediator in the inflamed synovium. The purpose of this study was to investigate the effects of H/R on inducible NO synthase (iNOS) activity and expression in OA synoviocytes. In addition we studied the relationship between nitrosative stress and NADPH oxidase (NOX) in such conditions. METHODS Human cultured synoviocytes from OA patients were treated for 24 h with interleukin 1-β (IL-1β), tumour necrosis factor α (TNF-α) or neither; for the last 6 h, they were submitted to either normoxia or three periods of 1-h of hypoxia followed by 1-h of reoxygenation. ·NO metabolism (iNOS expression, nitrite and peroxynitrite measurements) was investigated. Furthermore, superoxide anion O2(·-) production, NOX subunit expression and nitrosylation were also assessed. RESULTS iNOS expression and nitrite (but not peroxynitrite) production were ~0.20 to ~0.12 nmol min(-1) mg proteins(-1) (P < 0.05), while NOXs' subunit expression and p47-phox phosphorylation were increased. NOXs and p47-phox were dramatically nitrosylated under H/R conditions (P < 0.05 vs normoxia). Using NOS inhibitors under H/R conditions, p47-phox nitrosylation was prevented and O2(·-) production was restored at normoxic levels (0.21 nmol min(-1) mg of proteins(-1)). CONCLUSIONS Our results provide evidence for an up-regulation of iNOS activity in OA synoviocytes under H/R conditions, associated to a down-regulation of NOX activity through nitrosylation. These findings highlight the importance of radical production to OA pathogenesis, and appraise the metabolic modifications of synovial cells under hypoxia.
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Hsiao MY, Wang TG, Wu CH. Sonographic appearance of nontraumatic tear of flexor carpi radialis muscle-a case report. JOURNAL OF CLINICAL ULTRASOUND : JCU 2013; 41:65-68. [PMID: 22359413 DOI: 10.1002/jcu.21901] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2011] [Accepted: 01/23/2012] [Indexed: 05/31/2023]
Abstract
We present an unusual case of a man with a nontraumatic tear of the flexor carpi radialis muscle after a regular swimming exercise, without known precipitation factors. The muscle tear was diagnosed by ultrasonography, which showed a cystic mass with increased peripheral vascularity, and was confirmed by magnetic resonance imaging. After conservative treatment, follow-up ultrasonography showed resolution of the hematoma. The patient was able to continue swimming without pain or limitation of function.
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Affiliation(s)
- Ming-Yen Hsiao
- Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital and National Taiwan University College of Medicine, Zhongzheng Dist. 100 Taipei City, Taiwan, ROC
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Li GQ, Zhang Y, Liu D, Qian YY, Zhang H, Guo SY, Sunagawa M, Hisamitsu T, Liu YQ. PI3 kinase/Akt/HIF-1α pathway is associated with hypoxia-induced epithelial-mesenchymal transition in fibroblast-like synoviocytes of rheumatoid arthritis. Mol Cell Biochem 2013; 372:221-31. [PMID: 23001847 DOI: 10.1007/s11010-012-1463-z] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2012] [Accepted: 09/14/2012] [Indexed: 12/11/2022]
Abstract
Migration and invasion of fibroblast-like synoviocytes (FLSs) are critical in the pathogenesis of rheumatoid arthritis (RA). Hypoxic conditions are present in RA joints, and hypoxia has been extensively studied in angiogenesis and inflammation. However, its effect on the migration and invasion of RA-FLSs remains unknown. In this study, we observed that RA-FLSs exposed to hypoxic conditions experienced epithelial-mesenchymal transition (EMT), with increased cell migration and invasion. We demonstrated that hypoxia-induced EMT was accompanied by increased hypoxia-inducible factor (HIF)-1α expression and activation of Akt. After knockdown or inhibition of HIF-1α in hypoxia by small interfering RNA or genistein (Gen) treatment, the EMT transformation and invasion ability of FLSs were regained. HIF-1α could be blocked by phosphatidylinositol 3-kinase (PI3K) inhibitor, LY294002, indicating that HIF-1α activation was regulated by the PI3K/Akt pathway. Administration of LY294002 (20 mg/kg, intra-peritoneally) twice weekly and Gen (25 mg/kg, by gavage) daily for 3 weeks from day 20 after primary immunization in a collagen-induced arthritis rat model, markedly alleviated the clinical signs, radiology progression, synovial hyperplasia, and inflammatory cells infiltration of joints. Thus, results of this study suggest that activation of the PI3K/Akt/HIF-1α pathway plays a pivotal role in mediating hypoxia-induced EMT transformation and invasion of RA-FLSs under hypoxia.
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Affiliation(s)
- Guo-Qing Li
- Department of Rheumatology, Clinical Medical College, Yangzhou University, Yangzhou 225001, Jiangsu, China
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Sahin H, Tholema N, Petersen W, Raschke MJ, Stange R. Impaired biomechanical properties correlate with neoangiogenesis as well as VEGF and MMP-3 expression during rat patellar tendon healing. J Orthop Res 2012; 30:1952-7. [PMID: 22615070 DOI: 10.1002/jor.22147] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2012] [Accepted: 04/30/2012] [Indexed: 02/04/2023]
Abstract
Recent studies reveal an important role of vascular endothelial growth factor (VEGF)-induced angiogenesis in degenerative tendon diseases. The way how VEGF influences mechanical properties of the tendons is not well understood yet. We here hypothesized that tendinopathy results in a hypoxia-mediated stimulation of VEGF and that the mechanical stability of the tendon is impaired in an angiogenic process by VEGF-induced matrix metalloproteinases (MMPs). A modified in situ freezing model of patellar tendon was used to create a tendinopathy. 0, 7, 14, and 28 days post-surgical animals were sacrificed and patellar tendons were dissected for biomechanical and immunohistochemical analysis. Native tendons were used as controls. Immunohistochemical staining revealed a peak in HIF-1α stabilization immediately after surgery. Both VEGF and MMP-3 were increased 7 days after surgery. Angiogenesis was also abundant 7 days after surgery. In contrast, biomechanical stability of the tendon was decreased 7 days after surgery. The current results reveal a time-dependent correlation of HIF-1/VEGF-induced and MMP-3-supported angiogenesis with decreased biomechanical properties during tendon healing. The therapeutical modulation of neoangiogenesis by influencing the level of VEGF and MMP-3 might be a promising target for new approaches in degenerative tendon diseases. 30:1952-1957, 2012.
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Affiliation(s)
- Hacer Sahin
- Department of Trauma, Hand and Reconstructive Surgery, WWU Muenster, Germany
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Gao W, Sweeney C, Connolly M, Kennedy A, Ng CT, McCormick J, Veale DJ, Fearon U. Notch-1 mediates hypoxia-induced angiogenesis in rheumatoid arthritis. ACTA ACUST UNITED AC 2012; 64:2104-13. [PMID: 22275240 DOI: 10.1002/art.34397] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To examine the effect of hypoxia on Notch-1 signaling pathway components and angiogenesis in inflammatory arthritis. METHODS The expression and regulation of Notch-1, its ligand delta-like protein 4 (DLL-4) and downstream signaling components (hairy-related transcription factor 1 [HRT-1], HRT-2), and hypoxia-inducible factor 1α (HIF-1α) under normoxic and hypoxic conditions (1-3%) were assessed in synovial tissue specimens from patients with inflammatory arthritis and controls and in human dermal microvascular endothelial cells (HDMECs) by immunohistology, dual immunofluorescence staining (Notch-1/factor VIII), Western blotting, and real-time polymerase chain reaction. In vivo synovial tissue oxygen levels (tissue PO2) were measured under direct visualization at arthroscopy. HDMEC activation under hypoxic conditions in the presence of Notch-1 small interfering RNA (siRNA), the γ-secretase inhibitor DAPT, or dimethyloxalylglycine (DMOG) was assessed by Matrigel tube formation assay, migration assay, invasion assay, and matrix metalloproteinase 2 (MMP-2)/MMP-9 zymography. RESULTS Expression of Notch-1, its ligand DLL-4, and HRT-1 was demonstrated in synovial tissue, with the strongest expression localized to perivascular/vascular regions. Localization of Notch-1 to synovial endothelium was confirmed by dual immunofluorescence staining. Notch-1 intracellular domain (NICD) expression was significantly higher in synovial tissue from patients with tissue PO2 of <20 mm Hg (<3% O2) than in those with tissue PO2 of >20 mm Hg (>3% O2). Exposure of HDMECs to 3% hypoxia induced HIF-1α and NICD protein expression and DLL-4, HRT-1, and HRT-2 messenger RNA expression. DMOG directly induced NICD expression, while Notch-1 siRNA inhibited hypoxia-induced HIF-1α expression, suggesting that Notch-1/HIF-1α signaling is bidirectional. Finally, 3% hypoxia-induced angiogenesis, endothelial cell migration, endothelial cell invasion, and proMMP-2 and proMMP-9 activities were inhibited by Notch-1 siRNA and/or the γ-secretase inhibitor DAPT. CONCLUSION Our findings indicate that Notch-1 is expressed in synovial tissue and that increased NICD expression is associated with low in vivo tissue PO2. Furthermore, Notch-1/HIF-1α interactions mediate hypoxia-induced angiogenesis and invasion in inflammatory arthritis.
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Affiliation(s)
- Wei Gao
- Dublin Academic Medical Centre, St. Vincent's University Hospital, and University College Dublin, Dublin, Ireland
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Li G, Zhang Y, Qian Y, Zhang H, Guo S, Sunagawa M, Hisamitsu T, Liu Y. Interleukin-17A promotes rheumatoid arthritis synoviocytes migration and invasion under hypoxia by increasing MMP2 and MMP9 expression through NF-κB/HIF-1α pathway. Mol Immunol 2012; 53:227-36. [PMID: 22960198 DOI: 10.1016/j.molimm.2012.08.018] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2012] [Revised: 08/15/2012] [Accepted: 08/18/2012] [Indexed: 10/27/2022]
Abstract
Both hypoxia and interleukin-17A (IL-17A) promote the migration and invasion of fibroblast-like synoviocytes (FLSs), which are critical for the pathogenesis of rheumatoid arthritis (RA). However, the biochemical pathways regulating IL-17A combined with hypoxia are not well defined. In this study, we found that co-stimulating RA-FLSs with IL-17A and hypoxia did not appear to promote the epithelial-mesenchymal transition (EMT), but did increase cell motility. We further showed that a proinvasive effect of IL-17A on FLSs under hypoxia might be through upregulation of matrix metalloproteinase 2 (MMP2) and MMP9. Moreover, IL-17A-induced expression of MMP2 and MMP9 under hypoxia was accompanied by increased activation of nuclear factor-κB (NF-κB)/hypoxia-inducible factor-1α (HIF-1α). Knockdown or inhibition of HIF-1α and NF-κB by small interfering RNA or specific small molecule inhibitors blocked IL-17A-mediated and hypoxia-mediated MMP2 and MMP9 expression, cell migration, and invasion. In addition, the inhibition of NF-κB led to a marked decrease in the expression of HIF-1α, which indicated that IL-17A activated HIF-1α via the NF-κB pathway in hypoxia. Taken together, our observations suggest a synergetic effect of IL-17A and hypoxia that might contribute to the migration and invasion of RA-FLSs by upregulating the expression of MMP2 and MMP9 by activation of the NF-κB/HIF-1α pathway.
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Affiliation(s)
- Guoqing Li
- Department of Rheumatology, Clinical Medical College, Yangzhou University, Yangzhou, China
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Muz B, Larsen H, Madden L, Kiriakidis S, Paleolog EM. Prolyl hydroxylase domain enzyme 2 is the major player in regulating hypoxic responses in rheumatoid arthritis. ACTA ACUST UNITED AC 2012; 64:2856-67. [DOI: 10.1002/art.34479] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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