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DiNicola ES, Martinez AV, Walker L, Wu Y, Burnikel BG, Mercuri J. Cigarette smoke extract exacerbates progression of osteoarthritic-like changes in cartilage explant cultures. J Orthop Res 2024; 42:1682-1695. [PMID: 38460961 DOI: 10.1002/jor.25828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 02/04/2024] [Accepted: 02/13/2024] [Indexed: 03/11/2024]
Abstract
Established risk factors for osteoarthritis (OA) include obesity, joint injury, age, race, and genetics. However, the relationship between cigarette smoking and OA has yet to be established. In the present study, we have employed the use of cigarette smoke extract (CSE), the water-soluble vapor phase of cigarette smoke, with porcine cartilage explants to investigate the effects of cigarette smoking on cartilage catabolism at the tissue level. Articular cartilage explants were first exposed to 2.5%, 5%, and 10% CSE to assess its effects on cartilage homeostasis. Following, the effects of CSE on OA-like inflammation was observed by culturing explants with a combined treatment of IL-1β and TNF-α and 10% CSE (CSE + OA). Cartilage explants were assessed for changes in viability, biochemical composition, extracellular matrix (ECM) integrity, and equilibrium mechanical properties (aggregate modulus and hydraulic permeability). CSE alone leads to both a time- and dose-dependent decrease in chondrocyte viability but does not significantly affect sGAG content, percent sGAG loss, or the ECM integrity of cartilage explants. When IL-1β and TNF-α were combined with 10% CSE, this led to a synergistic effect with more significant losses in viability, significantly more sGAG loss, and significantly higher production of ROS than OA-like inflammation only. Cartilage explant equilibrium mechanical properties were unaffected. Within the timeframe of this study, CSE alone does not cause OA but when combined with OA-like inflammation leads to worsened articular cartilage degeneration as measured by chondrocyte viability, sGAG loss, proteoglycan staining, and ROS production.
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Affiliation(s)
- Emily Sawvell DiNicola
- Department of Bioengineering, The Laboratory of Orthopaedic Tissue Regeneration & Orthobiologics, Clemson University, Clemson, South Carolina, USA
- Frank H. Stelling and C. Dayton Riddle Orthopaedic Education and Research Laboratory, Clemson University Biomedical Engineering Innovation Campus, Greenville, South Carolina, USA
| | - Andrea Vera Martinez
- Department of Bioengineering, The Laboratory of Orthopaedic Tissue Regeneration & Orthobiologics, Clemson University, Clemson, South Carolina, USA
- Frank H. Stelling and C. Dayton Riddle Orthopaedic Education and Research Laboratory, Clemson University Biomedical Engineering Innovation Campus, Greenville, South Carolina, USA
| | - Lizzie Walker
- Orthopaedic Bioengineering Laboratory, Medical University of South Carolina, Department of Bioengineering, Clemson University, Charleston, South Carolina, USA
| | - Yongren Wu
- Orthopaedic Bioengineering Laboratory, Medical University of South Carolina, Department of Bioengineering, Clemson University, Charleston, South Carolina, USA
| | - Brian G Burnikel
- Prisma Health Steadman Hawkins Clinic of the Carolinas - Patewood, Greenville, South Carolina, USA
| | - Jeremy Mercuri
- Department of Bioengineering, The Laboratory of Orthopaedic Tissue Regeneration & Orthobiologics, Clemson University, Clemson, South Carolina, USA
- Frank H. Stelling and C. Dayton Riddle Orthopaedic Education and Research Laboratory, Clemson University Biomedical Engineering Innovation Campus, Greenville, South Carolina, USA
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Zhang X, Jiang J, Xu J, Chen J, Gu Y, Wu G. Liraglutide, a glucagon-like peptide-1 receptor agonist, ameliorates inflammation and apoptosis via inhibition of receptor for advanced glycation end products signaling in AGEs induced chondrocytes. BMC Musculoskelet Disord 2024; 25:601. [PMID: 39080620 PMCID: PMC11287913 DOI: 10.1186/s12891-024-07640-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 06/28/2024] [Indexed: 08/03/2024] Open
Abstract
BACKGROUND This study aimed to investigate functions of GLP-1R agonist by liraglutide (LIRA) and revealing the mechanism related to AGEs/RAGE in chondrocytes. METHODS To illustrate potential effect of GLP-1R agonist on AGEs induced chondrocytes, chondrocytes were administrated by AGEs with LIRA and GLP-1R inhibitor exendin. Inflammatory factors were assessed using ELISA. Real-time PCR was used to evaluate the catabolic activity MMPs and ADAMTS mRNA level, as well as anabolic activity (aggrecan and collagen II). RAGE expression was investigated by Western blotting. TUNEL, caspase3 activity and immunofluorescence were performed to test the apoptotic activity. RESULTS Our results showed that treatment with LIRA at > 100 nM attenuated the AGE-induced chondrocyte viability. Western bolt demonstrated that GLP-1R activation by LIRA treatment reduced RAGE protein expression compared with the AGEs groups. ELISA showed that LIRA hindered the AGEs-induced production of inflammatory cytokines (IL-6, IL-12 and TNF-α) in primary chondrocytes. AGEs induced catabolism levels (MMP-1, -3, -13 and ADAMTS-4, 5) are also attenuated by LIRA, causing the retention of more extracellular matrix (Aggrecan and Collagen II). TUNEL, caspase3 activity and immunofluorescence results indicated that LIRA inhibited the AGEs-induced production of inflammatory cytokines in primary chondrocytes and attenuated the caspase 3 level, leading to the reduced apoptotic activity. All the protective effects are reversed by exendin (GLP-1R blockers). CONCLUSIONS The present study demonstrates for the first time that LIRA, an agonist for GLP-1R which is commonly used in type 2 diabetes reverses AGEs induced chondrocyte inflammation and apoptosis through suppressing RAGE signaling, contributing to reduced catabolism and retention of more extracellular matrix. The above results indicate the possible effect of GLP-1R agonist on treating OA.
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Affiliation(s)
- Xianyu Zhang
- Department of Orthopedics, ShangRao People's Hospital, Shangrao, Jiangxi province, 334000, China
| | - Jian Jiang
- Department of Orthopedics, ShangRao People's Hospital, Shangrao, Jiangxi province, 334000, China
| | - Jiajia Xu
- Department of Orthopedics, ShangRao People's Hospital, Shangrao, Jiangxi province, 334000, China
| | - Jian Chen
- Department of Orthopedics, ShangRao People's Hospital, Shangrao, Jiangxi province, 334000, China
| | - Yuntao Gu
- Spine Surgery, The Second Affiliated Hospital of Hainan Medical University, 368 Yehai Dadao, Longhua District, Haikou, Hainan, 570216, China.
| | - Guobao Wu
- Department of Orthopedics, ShangRao People's Hospital, Shangrao, Jiangxi province, 334000, China.
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Gheorghe SR, Crăciun AM, Ilyés T, Tisa IB, Sur L, Lupan I, Samasca G, Silaghi CN. Converging Mechanisms of Vascular and Cartilaginous Calcification. BIOLOGY 2024; 13:565. [PMID: 39194503 DOI: 10.3390/biology13080565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2024] [Revised: 07/19/2024] [Accepted: 07/24/2024] [Indexed: 08/29/2024]
Abstract
Physiological calcification occurs in bones and epiphyseal cartilage as they grow, whereas ectopic calcification occurs in blood vessels, cartilage, and soft tissues. Although it was formerly thought to be a passive and degenerative process associated with aging, ectopic calcification has been identified as an active cell-mediated process resembling osteogenesis, and an increasing number of studies have provided evidence for this paradigm shift. A significant association between vascular calcification and cardiovascular risk has been demonstrated by various studies, which have shown that arterial calcification has predictive value for future coronary events. With respect to cartilaginous calcification, calcium phosphate or hydroxyapatite crystals can form asymptomatic deposits in joints or periarticular tissues, contributing to the pathophysiology of osteoarthritis, rheumatoid arthritis, ankylosing spondylitis, tendinitis, and bursitis. The risk factors and sequence of events that initiate ectopic calcification, as well as the mechanisms that prevent the development of this pathology, are still topics of debate. Consequently, in this review, we focus on the nexus of the mechanisms underlying vascular and cartilaginous calcifications, trying to circumscribe the similarities and disparities between them to provide more clarity in this regard.
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Affiliation(s)
- Simona R Gheorghe
- Department of Medical Biochemistry, Iuliu Hatieganu University of Medicine and Pharmacy, 400349 Cluj-Napoca, Romania
| | - Alexandra M Crăciun
- Department of Medical Biochemistry, Iuliu Hatieganu University of Medicine and Pharmacy, 400349 Cluj-Napoca, Romania
| | - Tamás Ilyés
- Department of Medical Biochemistry, Iuliu Hatieganu University of Medicine and Pharmacy, 400349 Cluj-Napoca, Romania
| | - Ioana Badiu Tisa
- Department of Pediatrics III, Iuliu Hatieganu University of Medicine and Pharmacy, 400217 Cluj-Napoca, Romania
| | - Lucia Sur
- Department of Pediatrics I, Iuliu Hatieganu University of Medicine and Pharmacy, 400370 Cluj-Napoca, Romania
| | - Iulia Lupan
- Department of Molecular Biology, Babes-Bolyai University, 400084 Cluj-Napoca, Romania
| | - Gabriel Samasca
- Department of Immunology, Iuliu Hatieganu University of Medicine and Pharmacy, 400162 Cluj-Napoca, Romania
| | - Ciprian N Silaghi
- Department of Medical Biochemistry, Iuliu Hatieganu University of Medicine and Pharmacy, 400349 Cluj-Napoca, Romania
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Rojas A, Lindner C, Schneider I, Gonzalez I, Uribarri J. The RAGE Axis: A Relevant Inflammatory Hub in Human Diseases. Biomolecules 2024; 14:412. [PMID: 38672429 PMCID: PMC11048448 DOI: 10.3390/biom14040412] [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: 03/04/2024] [Revised: 03/21/2024] [Accepted: 03/25/2024] [Indexed: 04/28/2024] Open
Abstract
In 1992, a transcendental report suggested that the receptor of advanced glycation end-products (RAGE) functions as a cell surface receptor for a wide and diverse group of compounds, commonly referred to as advanced glycation end-products (AGEs), resulting from the non-enzymatic glycation of lipids and proteins in response to hyperglycemia. The interaction of these compounds with RAGE represents an essential element in triggering the cellular response to proteins or lipids that become glycated. Although initially demonstrated for diabetes complications, a growing body of evidence clearly supports RAGE's role in human diseases. Moreover, the recognizing capacities of this receptor have been extended to a plethora of structurally diverse ligands. As a result, it has been acknowledged as a pattern recognition receptor (PRR) and functionally categorized as the RAGE axis. The ligation to RAGE leads the initiation of a complex signaling cascade and thus triggering crucial cellular events in the pathophysiology of many human diseases. In the present review, we intend to summarize basic features of the RAGE axis biology as well as its contribution to some relevant human diseases such as metabolic diseases, neurodegenerative, cardiovascular, autoimmune, and chronic airways diseases, and cancer as a result of exposure to AGEs, as well as many other ligands.
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Affiliation(s)
- Armando Rojas
- Biomedical Research Laboratories, Faculty of Medicine, Catholic University of Maule, Talca 34600000, Chile; (A.R.); (I.G.)
| | - Cristian Lindner
- Department of Radiology, Faculty of Medicine, University of Concepción, Concepción 4030000, Chile;
| | - Ivan Schneider
- Centre of Primary Attention, South Metropolitan Health Service, Santiago 3830000, Chile;
| | - Ileana Gonzalez
- Biomedical Research Laboratories, Faculty of Medicine, Catholic University of Maule, Talca 34600000, Chile; (A.R.); (I.G.)
| | - Jaime Uribarri
- Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10021, USA
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Kato T, Shinohara I, Mifune Y, Inui A, Nishimoto H, Yoshikawa T, Furukawa T, Tanaka S, Kusunose M, Hoshino Y, Matsushita T, Kuroda R. Intra-articular site-specific distribution of advanced glycation end products in the shoulder of patients with diabetes mellitus having rotator cuff tears. Mol Biol Rep 2023; 50:10339-10349. [PMID: 37982930 DOI: 10.1007/s11033-023-08861-z] [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: 09/01/2023] [Accepted: 09/27/2023] [Indexed: 11/21/2023]
Abstract
BACKGROUND Advanced glycation end products (AGEs) are compounds formed due to aging and diabetes mellitus (DM). They activate NADPH oxidase (NOX) by binding to their receptors, thereby increasing the production of reactive oxygen species (ROS), which cause oxidative stress. In this study, we investigated the effects of AGEs on the tissues of the shoulder joint (such as rotator cuff synovium, and capsule) in patients with DM having rotator cuff tears. METHODS This study included eight patients with DM who underwent surgical treatment for rotator cuff tears with contracture. The rotator cuff, synovium, and joint capsule were harvested at the time of surgery and evaluated by hematoxylin-eosin staining. Furthermore, immunostaining was used for evaluating AGEs and receptor for AGEs (RAGE), cell activity, ROS, and apoptosis. Quantitative real-time polymerase chain reaction (qPCR) was employed for the cellular evaluation of NOX, interleukins, RAGE, and collagen. RESULTS The AGEs and RAGE staining as well as the ratio of ROS and apoptosis were in the following order: rotator cuff > joint capsule > synovium. In contrast, the cellular activity was significantly higher in the synovium than in the other regions. The type I collagen expression (as shown by qPCR) as well as the RAGE and NOX expressions were as follows: rotator cuff > joint capsule > synovium. Conversely, the expression of inflammatory cytokines (i.e., IL-6 and IL-1β) was higher in the synovium than in the other regions. CONCLUSIONS Our study is among the first to evaluate the effects of AGEs on each tissue of the shoulder joint in patients with DM having rotator cuff tears and contractures. The accumulation of AGEs in each tissue of the shoulder joint could reveal the locations affected by DM, which can lead to a better understanding of the pathophysiology of DM-related shoulder diseases.
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Affiliation(s)
- Tatsuo Kato
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 5-2, Kusunoki-cho7, Chuo-ku, Kobe-shi, 650-0017, Hyogo, Japan
| | - Issei Shinohara
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 5-2, Kusunoki-cho7, Chuo-ku, Kobe-shi, 650-0017, Hyogo, Japan
| | - Yutaka Mifune
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 5-2, Kusunoki-cho7, Chuo-ku, Kobe-shi, 650-0017, Hyogo, Japan.
| | - Atsuyuki Inui
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 5-2, Kusunoki-cho7, Chuo-ku, Kobe-shi, 650-0017, Hyogo, Japan
| | - Hanako Nishimoto
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 5-2, Kusunoki-cho7, Chuo-ku, Kobe-shi, 650-0017, Hyogo, Japan
| | - Tomoya Yoshikawa
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 5-2, Kusunoki-cho7, Chuo-ku, Kobe-shi, 650-0017, Hyogo, Japan
| | - Takahiro Furukawa
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 5-2, Kusunoki-cho7, Chuo-ku, Kobe-shi, 650-0017, Hyogo, Japan
| | - Shuya Tanaka
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 5-2, Kusunoki-cho7, Chuo-ku, Kobe-shi, 650-0017, Hyogo, Japan
| | - Masaya Kusunose
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 5-2, Kusunoki-cho7, Chuo-ku, Kobe-shi, 650-0017, Hyogo, Japan
| | - Yuichi Hoshino
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 5-2, Kusunoki-cho7, Chuo-ku, Kobe-shi, 650-0017, Hyogo, Japan
| | - Takehiko Matsushita
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 5-2, Kusunoki-cho7, Chuo-ku, Kobe-shi, 650-0017, Hyogo, Japan
| | - Ryosuke Kuroda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 5-2, Kusunoki-cho7, Chuo-ku, Kobe-shi, 650-0017, Hyogo, Japan
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Palumbo A, Atzeni F, Murdaca G, Gangemi S. The Role of Alarmins in Osteoarthritis Pathogenesis: HMGB1, S100B and IL-33. Int J Mol Sci 2023; 24:12143. [PMID: 37569519 PMCID: PMC10418664 DOI: 10.3390/ijms241512143] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 07/26/2023] [Accepted: 07/27/2023] [Indexed: 08/13/2023] Open
Abstract
Osteoarthritis (OA) is a multifactorial disease in which genetics, aging, obesity, and trauma are well-known risk factors. It is the most prevalent joint disease and the largest disability problem worldwide. Recent findings have described the role of damage-associated molecular patterns (DAMPs) in the course of the disease. In particular, alarmins such as HMGB1, IL-33, and S100B, appear implicated in enhancing articular inflammation and favouring a catabolic switch in OA chondrocytes. The aims of this review are to clarify the molecular signalling of these three molecules in OA pathogenesis, to identify their possible use as staging biomarkers, and, most importantly, to find out whether they could be possible therapeutic targets. Osteoarthritic cartilage expresses increased levels of all three alarmins. HMGB1, in particular, is the most studied alarmin with increased levels in cartilage, synovium, and synovial fluid of OA patients. High levels of HMGB1 in synovial fluid of OA joints are positively correlated with radiological and clinical severity. Counteracting HMGB1 strategies have revealed improving results in articular cells from OA patients and in OA animal models. Therefore, drugs against this alarmin, such as anti-HMGB1 antibodies, could be new treatment possibilities that can modify the disease course since available medications only alleviate symptoms.
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Affiliation(s)
- Antonino Palumbo
- Rheumatology Unit, Department of Experimental and Internal Medicine, University of Messina, 98124 Messina, Italy; (A.P.); (F.A.)
| | - Fabiola Atzeni
- Rheumatology Unit, Department of Experimental and Internal Medicine, University of Messina, 98124 Messina, Italy; (A.P.); (F.A.)
| | - Giuseppe Murdaca
- Department of Internal Medicine, University of Genova, 16132 Genova, Italy
- IRCCS Ospedale Policlinico San Martino, 16132 Genova, Italy
| | - Sebastiano Gangemi
- School and Operative Unit of Allergy and Clinical Immunology, Department of Clinical and Experimental Medicine, University of Messina, 98125 Messina, Italy;
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Waqas K, Szilagyi IA, Schiphof D, Boer CG, Bierma-Zeinstra S, van Meurs JBJ, Zillikens MC. Skin autofluorescence, a non-invasive biomarker of advanced glycation end products, and its relation to radiographic and MRI based osteoarthritis. Osteoarthritis Cartilage 2022; 30:1631-1639. [PMID: 36087928 DOI: 10.1016/j.joca.2022.08.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 08/11/2022] [Accepted: 08/24/2022] [Indexed: 02/02/2023]
Abstract
OBJECTIVES Accumulation of advanced glycation end products (AGEs) in articular cartilage during aging has been proposed as a mechanism involved in the development of osteoarthritis (OA). Therefore, we investigated a cross-sectional relationship between skin AGEs, a biomarker for systemic AGEs accumulation, and OA. METHODS Skin AGEs were estimated with the AGE Reader™ as skin autofluorescence (SAF). Knee and hip X-rays were scored according to Kellgren and Lawrence (KL) system. KL-sum score of all four joints was calculated per participant to assess severity of overall radiographic OA (ROA) including or excluding those with prosthesis. Knee MRI of tibiofemoral joint (TFMRI) was assessed for cartilage loss. Sex-stratified regression models were performed after testing interaction with SAF. RESULTS 2,153 participants were included for this cross-sectional analysis. In women (n = 1,206) for one unit increase in SAF, the KL-sum score increased by 1.15 (95% confidence interval = 1.00-1.33) but excluding women with prosthesis, there was no KL-sum score increase [0.96 (0.83-1.11)]. SAF was associated with higher prevalence of prosthesis [Odds ratio, OR = 1.67 (1.10-2.54)] but not with ROA [OR = 0.83 (0.61-1.14)] when compared to women with no ROA. In men (n = 947), there was inconclusive association between SAF and KL sum score or prosthesis. For TFMRI (n = 103 women), SAF was associated with higher prevalence of cartilage loss, full-thickness [OR = 5.44 (1.27-23.38)] and partial-thickness [OR = 1.45 (0.38-5.54)], when compared to participants with no cartilage loss. CONCLUSION Higher SAF in women was associated with higher prosthesis prevalence and a trend towards higher cartilage loss on MRI. Our data presents inconclusive results between SAF and ROA in both sexes.
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Affiliation(s)
- K Waqas
- Department of Internal Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands.
| | - I A Szilagyi
- Department of Internal Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands; Department of General Practice, Erasmus University Medical Center, Rotterdam, the Netherlands.
| | - D Schiphof
- Department of General Practice, Erasmus University Medical Center, Rotterdam, the Netherlands.
| | - C G Boer
- Department of Internal Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands; Department of Epidemiology, Erasmus MC, University Medical Center, Rotterdam, the Netherlands.
| | - S Bierma-Zeinstra
- Department of General Practice, Erasmus University Medical Center, Rotterdam, the Netherlands; Department of Orthopaedics & Sports Medicine, Erasmus MC, University Medical Center, Rotterdam, the Netherlands.
| | - J B J van Meurs
- Department of Internal Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands; Department of Epidemiology, Erasmus MC, University Medical Center, Rotterdam, the Netherlands; Department of Orthopaedics & Sports Medicine, Erasmus MC, University Medical Center, Rotterdam, the Netherlands.
| | - M C Zillikens
- Department of Internal Medicine, Erasmus University Medical Center, Rotterdam, the Netherlands.
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Qrareya AN, Wise NS, Hodges ER, Mahdi F, Stewart JA, Paris JJ. HIV-1 Tat Upregulates the Receptor for Advanced Glycation End Products and Superoxide Dismutase-2 in the Heart of Transgenic Mice. Viruses 2022; 14:v14102191. [PMID: 36298745 PMCID: PMC9607872 DOI: 10.3390/v14102191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 09/23/2022] [Accepted: 09/27/2022] [Indexed: 11/29/2022] Open
Abstract
Cardiovascular disorder (CVD) is a common comorbidity in people living with HIV (PLWH). Although the underlying mechanisms are unknown, virotoxic HIV proteins, such as the trans-activator of transcription (Tat), likely contribute to CVD pathogenesis. Tat expression in mouse myocardium has been found to induce cardiac dysfunction and increase markers of endothelial toxicity. However, the role that Tat may play in the development of CVD pathogenesis is unclear. The capacity for Tat to impact cardiac function was assessed using AC16 human cardiomyocyte cells and adult male and female transgenic mice that conditionally expressed Tat [Tat(+)], or did not [Tat(-)]. In AC16 cardiomyocytes, Tat increased intracellular calcium. In Tat(+) mice, Tat expression was detected in both atrial and ventricular heart tissue. Tat(+) mice demonstrated an increased expression of the receptor for advanced glycation end products and superoxide dismutase-2 (SOD-2) in ventricular tissues compared to Tat(-) controls. No changes in SOD-1 or α-smooth muscle actin were observed. Despite Tat-mediated changes at the cellular level, no changes in echocardiographic measures were detected. Tat(+) mice had a greater proportion of ventricular mast cells and collagen; however, doxycycline exposure offset the latter effect. These data suggest that Tat exposure promotes cellular changes that can precede progression to CVD.
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Affiliation(s)
- Alaa N. Qrareya
- Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, Oxford, MS 38677, USA
| | - Nason S. Wise
- Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, Oxford, MS 38677, USA
| | - Emmanuel R. Hodges
- Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, Oxford, MS 38677, USA
| | - Fakhri Mahdi
- Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, Oxford, MS 38677, USA
| | - James A. Stewart
- Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, Oxford, MS 38677, USA
- Research Institute of Pharmaceutical Sciences, University of Mississippi, Oxford, MS 38677, USA
- Correspondence: (J.A.S.J.); (J.J.P.); Tel.: +1-662-915-2309 (J.A.S.J.); +1-662-915-3096 (J.J.P.)
| | - Jason J. Paris
- Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, Oxford, MS 38677, USA
- Research Institute of Pharmaceutical Sciences, University of Mississippi, Oxford, MS 38677, USA
- Correspondence: (J.A.S.J.); (J.J.P.); Tel.: +1-662-915-2309 (J.A.S.J.); +1-662-915-3096 (J.J.P.)
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Iijima H, Gilmer G, Wang K, Sivakumar S, Evans C, Matsui Y, Ambrosio F. Meta-analysis Integrated With Multi-omics Data Analysis to Elucidate Pathogenic Mechanisms of Age-Related Knee Osteoarthritis in Mice. J Gerontol A Biol Sci Med Sci 2022; 77:1321-1334. [PMID: 34979545 PMCID: PMC9255692 DOI: 10.1093/gerona/glab386] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Indexed: 01/05/2023] Open
Abstract
Increased mechanistic insight into the pathogenesis of knee osteoarthritis (KOA) is needed to develop efficacious disease-modifying treatments. Though age-related pathogenic mechanisms are most relevant to the majority of clinically presenting KOA, the bulk of our mechanistic understanding of KOA has been derived using surgically induced posttraumatic OA (PTOA) models. Here, we took an integrated approach of meta-analysis and multi-omics data analysis to elucidate pathogenic mechanisms of age-related KOA in mice. Protein-level data were integrated with transcriptomic profiling to reveal inflammation, autophagy, and cellular senescence as primary hallmarks of age-related KOA. Importantly, the molecular profiles of cartilage aging were unique from those observed following PTOA, with less than 3% overlap between the 2 models. At the nexus of the 3 aging hallmarks, advanced glycation end product (AGE)/receptor for AGE (RAGE) emerged as the most statistically robust pathway associated with age-related KOA. This pathway was further supported by analysis of mass spectrometry data. Notably, the change in AGE-RAGE signaling over time was exclusively observed in male mice, suggesting sexual dimorphism in the pathogenesis of age-induced KOA in murine models. Collectively, these findings implicate dysregulation of AGE-RAGE signaling as a sex-dependent driver of age-related KOA.
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Affiliation(s)
- Hirotaka Iijima
- Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Japan Society for the Promotion of Science, Tokyo, Japan
| | - Gabrielle Gilmer
- Medical Scientist Training Program, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Kai Wang
- Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Sruthi Sivakumar
- Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Christopher Evans
- Rehabilitation Medicine Research Center, Mayo Clinic, Rochester, Minnesota, USA
| | - Yusuke Matsui
- Biomedical and Health Informatics Unit, Graduate School of Medicine, Nagoya University, Nagoya, Japan
| | - Fabrisia Ambrosio
- Department of Physical Medicine and Rehabilitation, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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Shinohara I, Mifune Y, Inui A, Nishimoto H, Yamaura K, Mukohara S, Yoshikawa T, Kato T, Furukawa T, Hoshino Y, Matsushita T, Kuroda R. Biochemical Markers of Aging (Advanced Glycation End Products) and Degeneration Are Increased in Type 3 Rotator Cuff Tendon Stumps With Increased Signal Intensity Changes on MRI. Am J Sports Med 2022; 50:1960-1970. [PMID: 35486520 DOI: 10.1177/03635465221090649] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Advanced glycation end products (AGEs) are end products of protein glycation that bind to the receptor for AGEs (RAGE) and activate nicotinamide adenine dinucleotide phosphate oxidase (NOX), resulting in increased oxidative stress and rotator cuff fragility. Stump classification using the signal intensity ratio of the tendon rupture site to the deltoid muscle in the coronal view of T2-weighted fat-suppressed magnetic resonance imaging (MRI) scans is an indicator of clinical outcomes after rotator cuff repair surgery. Comparing the signal intensities of the deltoid (D) and rotator cuff tears (C), Ishitani et al. classified C/D <0.8 as type 1, 0.8 to 1.3 as type 2, and >1.3 as type 3. HYPOTHESIS/PURPOSE It was hypothesized that the oxidative stress and collagen degeneration that occur in the rotator cuff due to accumulation of AGEs can be assessed on MRI scans (stump classification). Therefore, this study aimed to compare AGE-related factors in the rotator cuff tear site tissues based on stump classification. STUDY DESIGN Descriptive laboratory study. METHODS The authors included 30 patients (11 with type 1, 9 with type 2, and 10 with type 3; mean age, 62.3 years) who underwent surgery for complete rotator cuff tears at our hospital. Tendon tissue was harvested from the torn rotator cuff site during surgery for tissue and cell evaluation. RESULTS There was no significant difference in the mean age according to stump classification. The number of patients with diabetes was significantly larger in type 3 than in the other types (P < .05). Tissue evaluation showed significantly higher expression of AGE and RAGE staining in type 3 than in the other types (~6.7-fold; P < .01). Cell evaluation showed that the expression rates of reactive oxygen species and apoptosis were significantly higher in type 3 than in the other types (~4.3-fold; P < .01). Gene expression by real-time polymerase chain reaction showed significantly higher RAGE (~5.1-fold), NOX (~5.3-fold), and IL (~3.0-fold) in type 3 than in the other types (P < .05). CONCLUSION Stump classification type 3 exhibited the highest accumulation of AGEs and the highest oxidative stress and apoptosis, suggesting a high degree of degeneration and inflammation. Imaging based on stump classification reflects the degeneration and fragility of the torn rotator cuff site. CLINICAL RELEVANCE This study provides evidence of a relationship between stump classification, which reflects rotator cuff fragility on MRI, and pathologies related to advanced glycation end products.
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Affiliation(s)
- Issei Shinohara
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Yutaka Mifune
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Atsuyuki Inui
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Hanako Nishimoto
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Kohei Yamaura
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Shintaro Mukohara
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Tomoya Yoshikawa
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Tatsuo Kato
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Takahiro Furukawa
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Yuichi Hoshino
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Takehiko Matsushita
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
| | - Ryosuke Kuroda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Hyogo, Japan
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11
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Rai V, Dilisio MF, Samadi F, Agrawal DK. Counteractive Effects of IL-33 and IL-37 on Inflammation in Osteoarthritis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:5690. [PMID: 35565085 PMCID: PMC9100324 DOI: 10.3390/ijerph19095690] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 05/02/2022] [Accepted: 05/05/2022] [Indexed: 12/21/2022]
Abstract
Osteoarthritis (OA) is a chronic inflammatory disease where pro-inflammatory cytokines, damage-associated molecular patterns (DAMPs), and macrophages play a crucial role. However, the interactive role of these mediators, the exact cause precipitating OA and definitive treatment for OA are not known yet. Moreover, the interactive role of interleukin (IL)-33 and IL-37 with other factors in the pathogenesis of OA has not been discussed elaborately. In this study, we analyzed the expression of IL-33 and IL-37 in human OA knee and hip joint cartilage tissues. The effect of increased DAMPs, IL-33, and IL-37 on IL-6, tumor necrosis factor (TNF)-α, toll-like receptors (TLRs), and matrix metalloproteinases (MMPs) expression was delineated using human normal and osteoarthritic chondrocytes. The effect of anti-inflammatory cytokine IL-37 on various mediators of inflammation in the presence of IL-33, rHMGB-1, and LPS was investigated to delineate the effects of IL-37. Further, the effects of blocking IL-33 downstream signaling and the effects of IL-33 and IL-37 on macrophage polarization were assessed along with examining the macrophage phenotypes in human OA cartilage tissues. The results of this study revealed increased expression of IL-33 in OA cartilage and that IL-33 increases IL-6, TNF-α, TLRs, and MMPs expression and favors phenotypic conversion towards the M1 phenotype, while IL-37 and blocking IL-33 receptor ST2 have opposite effects. Overall, the results suggest that blocking IL-33 and increasing IL-37 act synergistically to attenuate inflammation and might serve as potential therapeutics in OA.
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Affiliation(s)
- Vikrant Rai
- Department of Translational Research, Western University of Health Sciences, Pomona, CA 91766, USA;
| | - Matthew F. Dilisio
- Department of Orthopedic Surgery, Creighton University School of Medicine, Omaha, NE 68178, USA;
| | - Farial Samadi
- Department of Biology, College of Arts and Sciences, University of Nebraska at Omaha, Omaha, NE 68182, USA;
| | - Devendra K. Agrawal
- Department of Translational Research, Western University of Health Sciences, Pomona, CA 91766, USA;
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12
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Daou F, Cochis A, Leigheb M, Rimondini L. Current Advances in the Regeneration of Degenerated Articular Cartilage: A Literature Review on Tissue Engineering and Its Recent Clinical Translation. MATERIALS 2021; 15:ma15010031. [PMID: 35009175 PMCID: PMC8745794 DOI: 10.3390/ma15010031] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 12/15/2021] [Accepted: 12/17/2021] [Indexed: 12/23/2022]
Abstract
Functional ability is the basis of healthy aging. Articular cartilage degeneration is amongst the most prevalent degenerative conditions that cause adverse impacts on the quality of life; moreover, it represents a key predisposing factor to osteoarthritis (OA). Both the poor capacity of articular cartilage for self-repair and the unsatisfactory outcomes of available clinical interventions make innovative tissue engineering a promising therapeutic strategy for articular cartilage repair. Significant progress was made in this field; however, a marked heterogeneity in the applied biomaterials, biofabrication, and assessments is nowadays evident by the huge number of research studies published to date. Accordingly, this literature review assimilates the most recent advances in cell-based and cell-free tissue engineering of articular cartilage and also focuses on the assessments performed via various in vitro studies, ex vivo models, preclinical in vivo animal models, and clinical studies in order to provide a broad overview of the latest findings and clinical translation in the context of degenerated articular cartilage and OA.
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Affiliation(s)
- Farah Daou
- Department of Health Sciences, Center for Translational Research on Autoimmune and Allergic Diseases-CAAD, Università del Piemonte Orientale UPO, 28100 Novara, Italy; (F.D.); (A.C.); (M.L.)
| | - Andrea Cochis
- Department of Health Sciences, Center for Translational Research on Autoimmune and Allergic Diseases-CAAD, Università del Piemonte Orientale UPO, 28100 Novara, Italy; (F.D.); (A.C.); (M.L.)
| | - Massimiliano Leigheb
- Department of Health Sciences, Center for Translational Research on Autoimmune and Allergic Diseases-CAAD, Università del Piemonte Orientale UPO, 28100 Novara, Italy; (F.D.); (A.C.); (M.L.)
- Department of Orthopaedics and Traumatology, “Maggiore della Carità” Hospital, 28100 Novara, Italy
| | - Lia Rimondini
- Department of Health Sciences, Center for Translational Research on Autoimmune and Allergic Diseases-CAAD, Università del Piemonte Orientale UPO, 28100 Novara, Italy; (F.D.); (A.C.); (M.L.)
- Correspondence: ; Tel.: +39-0321-660-673
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13
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Mehta S, Young CC, Warren MR, Akhtar S, Shefelbine SJ, Crane JD, Bajpayee AG. Resveratrol and Curcumin Attenuate Ex Vivo Sugar-Induced Cartilage Glycation, Stiffening, Senescence, and Degeneration. Cartilage 2021; 13:1214S-1228S. [PMID: 33472415 PMCID: PMC8804818 DOI: 10.1177/1947603520988768] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVE Advanced glycation end-product (AGE) accumulation is implicated in osteoarthritis (OA) pathogenesis in aging and diabetic populations. Here, we develop a representative nonenzymatic glycation-induced OA cartilage explant culture model and investigate the effectiveness of resveratrol, curcumin, and eugenol in inhibiting AGEs and the structural and biological hallmarks of cartilage degeneration. DESIGN Bovine cartilage explants were treated with AGE-bovine serum albumin, threose, and ribose to determine the optimal conditions that induce physiological levels of AGEs while maintaining chondrocyte viability. AGE crosslinks, tissue stiffness, cell viability, metabolism and senescence, nitrite release and loss of glycosaminoglycans were assessed. Explants were cotreated with resveratrol, curcumin, or eugenol to evaluate their anti-AGE properties. Blind docking analysis was conducted to estimate binding energies of drugs with collagen II. RESULTS Treatment with 100 mM ribose significantly increased AGE crosslink formation and tissue stiffness, resulting in reduced chondrocyte metabolism and enhanced senescence. Blind docking analysis revealed stronger binding energies of both resveratrol and curcumin than ribose, with glycation sites along a human collagen II fragment, indicating their increased likelihood of competitively inhibiting ribose activity. Resveratrol and curcumin, but not eugenol, successfully inhibited AGE crosslink formation and its associated downstream biological response. CONCLUSIONS We establish a cartilage explant model of OA that recapitulates several aspects of aged human cartilage. We find that resveratrol and curcumin are effective anti-AGE therapeutics with the potential to decelerate age-related and diabetes-induced OA. This in vitro nonenzymatic glycation-induced model provides a tool for screening OA drugs, to simultaneously evaluate AGE-induced biological and mechanical changes.
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Affiliation(s)
- Shikhar Mehta
- Department of Bioengineering,
Northeastern University, Boston, MA, USA
| | - Cameron C. Young
- Department of Chemical Engineering,
Northeastern University, Boston, MA, USA
| | - Matthew R. Warren
- Department of Bioengineering,
Northeastern University, Boston, MA, USA
| | - Sumayyah Akhtar
- Department of Biochemistry, Northeastern
University, Boston, MA, USA
| | - Sandra J. Shefelbine
- Department of Bioengineering,
Northeastern University, Boston, MA, USA,Department of Mechanical &
Industrial Engineering, Northeastern University, Boston, MA, USA
| | - Justin D. Crane
- Department of Biology, Northeastern
University, Boston, MA, USA
| | - Ambika G. Bajpayee
- Department of Bioengineering,
Northeastern University, Boston, MA, USA,Department of Mechanical &
Industrial Engineering, Northeastern University, Boston, MA, USA,Ambika G. Bajpayee, Department of
Bioengineering, Northeastern University, ISEC Room 216, 805 Columbus Avenue,
Boston, MA 02115, USA.
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14
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Wagner G, Lehmann C, Bode C, Miosge N, Schubert A. High Mobility Group Box 1 Protein in Osteoarthritic Knee Tissue and Chondrogenic Progenitor Cells: An Ex Vivo and In Vitro Study. Cartilage 2021; 12:484-495. [PMID: 30912672 PMCID: PMC8461157 DOI: 10.1177/1947603519835897] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVE In osteoarthritis (OA), a loss of healthy cartilage extracellular matrix (ECM) results in cartilage degeneration. Attracting chondrogenic progenitor cells (CPCs) to injury sites and stimulating them toward chondrogenic expression profiles is a regenerative approach in OA therapy. High mobility group box 1 protein (HMGB1) is associated with chemoattractant and proinflammatory effects in various pathological processes. Here, we investigate the migratory effects of HMGB1 in knee OA and CPCs for the first time. DESIGN Immunohistochemistry, immunoblotting, and immunocytochemistry were performed to identify HMGB1 and its receptors, receptor for advanced glycation end products (RAGE) and toll-like receptor 4 (TLR4) in OA knee tissue, chondrocytes, and CPCs. In situ hybridization for HMGB1 mRNA was performed in CPCs ex vivo. The chemoattractant effects of HMGB1 on CPCs were analyzed in cell migration assays. RESULTS HMGB1 expression in OA tissue and OA chondrocytes was higher than in healthy specimens and cells. HMGB1, RAGE, and TLR4 were expressed in CPCs and chondrocytes. In situ hybridization revealed HMGB1 mRNA in CPCs after migration into OA knee tissue, and immunohistochemistry confirmed HMGB1 expression at the protein level. Stimulation via HMGB1 significantly increased the migration of CPCs. CONCLUSIONS Our results show the chemoattractant role of HMGB1 in knee OA. HMGB1 is released by chondrocytes and has migratory effects on CPCs. These effects might be mediated via RAGE and TLR4. The in vitro and ex vivo results of this study need to be confirmed in vivo.
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Affiliation(s)
- Gunar Wagner
- Tissue Regeneration and Oral Biology Work Group, Department of Prosthodontics, Georg August University, Gottingen, Germany
| | - Christoph Lehmann
- Tissue Regeneration and Oral Biology Work Group, Department of Prosthodontics, Georg August University, Gottingen, Germany
| | - Christa Bode
- Tissue Regeneration and Oral Biology Work Group, Department of Prosthodontics, Georg August University, Gottingen, Germany
| | - Nicolai Miosge
- Tissue Regeneration and Oral Biology Work Group, Department of Prosthodontics, Georg August University, Gottingen, Germany,Nicolai Miosge, Tissue Regeneration and Oral Biology Work Group, Department of Prosthodontics, Georg August University, Robert-Koch-Str. 40, Gottingen, 37075, Germany.
| | - Andrea Schubert
- Tissue Regeneration and Oral Biology Work Group, Department of Prosthodontics, Georg August University, Gottingen, Germany
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15
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Qu J, Cheng Y, Wu W, Yuan L, Liu X. Glycocalyx Impairment in Vascular Disease: Focus on Inflammation. Front Cell Dev Biol 2021; 9:730621. [PMID: 34589494 PMCID: PMC8473795 DOI: 10.3389/fcell.2021.730621] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 08/25/2021] [Indexed: 02/05/2023] Open
Abstract
The glycocalyx is a complex polysaccharide-protein layer lining the lumen of vascular endothelial cells. Changes in the structure and function of the glycocalyx promote an inflammatory response in blood vessels and play an important role in the pathogenesis of many vascular diseases (e.g., diabetes, atherosclerosis, and sepsis). Vascular endothelial dysfunction is a hallmark of inflammation-related diseases. Endothelial dysfunction can lead to tissue swelling, chronic inflammation, and thrombosis. Therefore, elimination of endothelial inflammation could be a potential target for the treatment of vascular diseases. This review summarizes the key role of the glycocalyx in the inflammatory process and the possible mechanism by which it alleviates this process by interrupting the cycle of endothelial dysfunction and inflammation. Especially, we highlight the roles of different components of the glycocalyx in modulating the inflammatory process, including components that regulate leukocyte rolling, L-selectin binding, inflammasome activation and the signaling interactions between the glycocalyx components and the vascular cells. We discuss how the glycocalyx interferes with the development of inflammation and the importance of preventing glycocalyx impairment. Finally, drawing on current understanding of the role of the glycocalyx in inflammation, we consider a potential strategy for the treatment of vascular diseases.
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Affiliation(s)
- Jing Qu
- Laboratory of Cardiovascular Diseases, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China
| | - Yue Cheng
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China
| | - Wenchao Wu
- Laboratory of Cardiovascular Diseases, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China
| | - Lixing Yuan
- Public Laboratory of West China Second University Hospital, Sichuan University, Chengdu, China
| | - Xiaojing Liu
- Laboratory of Cardiovascular Diseases, Regenerative Medicine Research Center, West China Hospital, Sichuan University, Chengdu, China.,Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China
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16
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Chen X, Yu M, Xu W, Zou L, Ye J, Liu Y, Xiao Y, Luo J. Rutin inhibited the advanced glycation end products-stimulated inflammatory response and extra-cellular matrix degeneration via targeting TRAF-6 and BCL-2 proteins in mouse model of osteoarthritis. Aging (Albany NY) 2021; 13:22134-22147. [PMID: 34550907 PMCID: PMC8507296 DOI: 10.18632/aging.203470] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 06/23/2021] [Indexed: 05/12/2023]
Abstract
BACKGROUND Osteoarthritis (OA) is degenerative joint disorder mainly characterized by long-term pain with limited activity of joints, the disease has no effective preventative therapy. Rutin (RUT) is a flavonoid compound, present naturally. The flavonoid shows range of biological activities such as anti-inflammatory and anti-cancer effect. We screened RUT for its activity against osteoarthritis with in vivo and in vitro models of osteoarthritis. METHODS Animal model of OA was developed using C57BL/6 mice by surgical destabilization of medial meniscus. For in vitro studies the human articular cartilage tissues were used which were collected from osteoarthritis patients and were processed to isolate chondrocytes. The chondrocytes were submitted to advanced glycation end products (AGEs) for inducing osteoarthritis in vitro. Cell viability was done by CCK-8 assay, ELISA analysis for MMP13, collage II, PGE2, IL-6, TNF-α, ADAMTS-5 and MMP-13. Western blot analysis was done for expression of proteins and in silico analysis was done by docking studies. RESULTS Pretreatment of RT showed no cytotoxic effect and also ameliorated the AGE mediated inflammatory reaction on human chondrocytes in vitro. Treatment of RT inhibited the levels of COX-2 and iNOS in AGE exposed chondrocytes. RT decreased the AGE mediated up-regulation of IL-6, NO, TNF-α and PGE-2 in a dose dependent manner. Pretreatment of RT decreased the extracellular matrix degradation, inhibited expression of TRAF-6 and BCL-2 the NF-κB/MAPK pathway proteins. The treatment of RT in mice prevented the calcification of cartilage tissues, loss of proteoglycans and also halted the narrowing of joint space is mice subjected to osteoarthritis. The in-silico analysis suggested potential binding affinity of RT with TRAF-6 and BCL-2. CONCLUSION In brief RT inhibited AGE-induced inflammatory reaction and also degradation of ECM via targeting the NF-κB/MAPK pathway proteins BCL-2 and TRAF-6. RT can be a potential molecule in treating OA.
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Affiliation(s)
- Xiang Chen
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang 330000, Jiangxi Province, China
| | - Mingchuan Yu
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang 330000, Jiangxi Province, China
| | - Wei Xu
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang 330000, Jiangxi Province, China
| | - Linfeng Zou
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang 330000, Jiangxi Province, China
| | - Jing Ye
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang 330000, Jiangxi Province, China
| | - Yu Liu
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang 330000, Jiangxi Province, China
| | - Yuhong Xiao
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang 330000, Jiangxi Province, China
| | - Jun Luo
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang 330000, Jiangxi Province, China
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17
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Ni J, Au M, Kong H, Wang X, Wen C. Lycium barbarum polysaccharides in ageing and its potential use for prevention and treatment of osteoarthritis: a systematic review. BMC Complement Med Ther 2021; 21:212. [PMID: 34404395 PMCID: PMC8371808 DOI: 10.1186/s12906-021-03385-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 07/29/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Lycium barbarum polysaccharide (LBP), the most abundant functional component of wolfberry, is considered a potent antioxidant and an anti-ageing substance. This review aims to outline the hallmarks of ageing in the pathogenesis of osteoarthritis (OA), followed by the current understanding of the senolytic effect of LBP and its potential use in the prevention and treatment of OA. This will be discussed through the lens of molecular biology and herbal medicine. METHODS A literature search was performed from inception to March 2020 using following keywords: "Lycium barbarum polysaccharide", "DNA damage", antioxidant, anti-apoptosis, anti-inflammation, anti-ageing, osteoarthritis, chondrocytes, fibroblasts, osteoblasts, osteoclasts, and "bone mesenchymal stem cell". The initial search yielded 2287 papers, from which 35 studies were selected for final analysis after screening for topic relevancy by the authors. RESULTS In literature different in vitro and in vivo ageing models are used to demonstrate LBP's ability to reduce oxidative stress, restore mitochondrial function, mitigate DNA damage, and prevent cellular senescence. All the evidence hints that LBP theoretically attenuates senescent cell accumulation and suppresses the senescence-associated secretory phenotype as observed by the reduction in pro-inflammatory cytokines, like interleukin-1beta, and matrix-degrading enzymes, such as MMP-1 and MMP-13. However, there remains a lack of evidence on the disease-modifying effect of LBP in OA, although its chondroprotective, osteoprotective and anti-inflammatory effects were reported. CONCLUSION Our findings strongly support further investigations into the senolytic effect of LBP in the context of age-related OA.
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Affiliation(s)
- Junguo Ni
- Department of Biomedical Engineering, Faculty of Engineering, Hong Kong Polytechnic University, Kowloon, Hong Kong
| | - Manting Au
- Department of Biomedical Engineering, Faculty of Engineering, Hong Kong Polytechnic University, Kowloon, Hong Kong
| | - Hangkin Kong
- Department of Applied Biology and Chemical Technology, Hong Kong Polytechnic University, Kowloon, Hong Kong
| | - Xinluan Wang
- Centre for Translational Medical Research and Development, Shenzhen Institutes of Advanced Technology, Chinese Academy of Science, Shen Zhen, China
| | - Chunyi Wen
- Department of Biomedical Engineering, Faculty of Engineering, Hong Kong Polytechnic University, Kowloon, Hong Kong.
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18
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Azami M, Beheshtizadeh N. Identification of regeneration-involved growth factors in cartilage engineering procedure promotes its reconstruction. Regen Med 2021; 16:719-731. [PMID: 34287065 DOI: 10.2217/rme-2021-0028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Aim: To fabricate mature cartilage for implantation, developmental biological processes and proteins should be understood and employed. Methods: A systems biology study of all protein-coding genes participating in cartilage regeneration resulted in a network graph with 11 nodes and 28 edges. Gene ontology and centrality analysis were performed based on the degree index. Results: The four most crucial biological processes along with the seven most interactive proteins involved in cartilage regeneration were identified. Some proteins, which are under serious discussion in cartilage developmental and disease processes, are included in regeneration. Conclusions: Findings positively correlate with the literature, supporting the use of the four most impressive proteins as growth factors applicable to cartilage tissue engineering, including COL2A1, SOX9, CTGF and TGFβ1.
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Affiliation(s)
- Mahmoud Azami
- Department of Tissue Engineering & Applied Cell Sciences, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran.,Regenerative Medicine group (REMED), Universal Scientific Education & Research Network (USERN), Tehran, Iran
| | - Nima Beheshtizadeh
- Department of Tissue Engineering & Applied Cell Sciences, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran.,Regenerative Medicine group (REMED), Universal Scientific Education & Research Network (USERN), Tehran, Iran
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19
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Kamiya N, Kim HKW. Elevation of Proinflammatory Cytokine HMGB1 in the Synovial Fluid of Patients With Legg-Calvé-Perthes Disease and Correlation With IL-6. JBMR Plus 2021; 5:e10429. [PMID: 33615102 PMCID: PMC7872337 DOI: 10.1002/jbm4.10429] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 10/16/2020] [Accepted: 10/31/2020] [Indexed: 12/22/2022] Open
Abstract
Legg-Calvé-Perthes disease (LCPD) is a childhood ischemic osteonecrosis (ON) of the femoral head associated with the elevation of proinflammatory cytokine interleukin-6 (IL-6) in the synovial fluid. Currently, there is no effective medical therapy for patients with LCPD. In animal models of ischemic ON, articular chondrocytes produce IL-6 in response to ischemic ON induction and IL-6 receptor blockade improves bone healing. High-mobility group box 1 (HMGB1) is a damage-associated molecular pattern released from dying cells. In addition, extracellular HMGB1 protein is a well-known proinflammatory cytokine elevated in the synovial fluid of patients with rheumatoid arthritis and osteoarthritis. The purpose of this study was to investigate IL-6-related proinflammatory cytokines, including HMGB1, in the synovial fluid of patients with LCPD. Our working hypothesis was that HMGB1, produced by articular chondrocytes following ischemic ON, plays an important role in IL-6 upregulation. Here, HMGB1 protein levels were significantly higher in the synovial fluid of patients with LCPD by threefold compared with controls (p < 0.05), and were highly correlated with IL-6 levels (Pearson correlation coefficient 0.94, p < 0.001, R 2 = 0.87). In the mouse model of ischemic ON, both HMGB1 gene expression and protein levels were elevated in the articular cartilage. In vitro studies revealed a significant elevation of HMGB1 and IL-6 proteins in the supernatants of human chondrocytes exposed to hypoxic and oxidative stresses. Overexpressed HMGB1 protein in the supernatants of chondrocytes synergistically increased IL-6 protein. Silencing HMGB1 RNA in human chondrocytes significantly repressed inteleukin-1β (IL-1β) gene expression, but not IL-6. Further, both IL-1β and tumor necrosis factor-α (TNF-α) protein levels in the synovial fluid of patients with LCPD were significantly correlated with IL-6 protein levels. Taken together, these results suggest that proinflammatory cytokines, HMGB1, tumor necrosis factor-α (TNF-α), and IL-1β, are significantly involved with IL-6 in the pathogenesis of LCPD. This study is clinically relevant because the availability of multiple therapeutic targets may improve the development of therapeutic strategy for LCPD. © 2020 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- Nobuhiro Kamiya
- Center for Excellence in HipScottish Rite for ChildrenDallasTXUSA
- Department of Orthopedic SurgeryUniversity of Texas Southwestern Medical CenterDallasTXUSA
- Faculty of Budo and Sport StudiesTenri UniversityNaraJapan
| | - Harry KW Kim
- Center for Excellence in HipScottish Rite for ChildrenDallasTXUSA
- Department of Orthopedic SurgeryUniversity of Texas Southwestern Medical CenterDallasTXUSA
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20
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Boraldi F, Lofaro FD, Quaglino D. Apoptosis in the Extraosseous Calcification Process. Cells 2021; 10:cells10010131. [PMID: 33445441 PMCID: PMC7827519 DOI: 10.3390/cells10010131] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 01/07/2021] [Accepted: 01/10/2021] [Indexed: 12/13/2022] Open
Abstract
Extraosseous calcification is a pathologic mineralization process occurring in soft connective tissues (e.g., skin, vessels, tendons, and cartilage). It can take place on a genetic basis or as a consequence of acquired chronic diseases. In this last case, the etiology is multifactorial, including both extra- and intracellular mechanisms, such as the formation of membrane vesicles (e.g., matrix vesicles and apoptotic bodies), mitochondrial alterations, and oxidative stress. This review is an overview of extraosseous calcification mechanisms focusing on the relationships between apoptosis and mineralization in cartilage and vascular tissues, as these are the two tissues mostly affected by a number of age-related diseases having a progressively increased impact in Western Countries.
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Affiliation(s)
- Federica Boraldi
- Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (F.D.L.); (D.Q.)
- Correspondence:
| | - Francesco Demetrio Lofaro
- Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (F.D.L.); (D.Q.)
| | - Daniela Quaglino
- Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (F.D.L.); (D.Q.)
- Interuniversity Consortium for Biotechnologies (CIB), Italy
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21
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Shavlovskaya OA, Zolotovskaya IA, Prokofyeva YS. [Antiresorptive activity of pharmacological chondroitin sulfate in the older age group]. TERAPEVT ARKH 2020; 92:75-79. [PMID: 33720577 DOI: 10.26442/00403660.2020.12.200448] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Accepted: 02/07/2021] [Indexed: 01/01/2023]
Abstract
The prevalence of osteoarthritis (OA) increases in proportion to age, so in the population of people over 65 years of age. The pathogenesis of OA is based on inflammation of the cartilage tissue of the joint, which leads to damage to the cartilage, activation of signaling pathways and increased levels of cytokines. AIM To study the literature data on bone and cartilage remodeling with the development of resorptive processes and discuss possible algorithms and recommendations for the management of patients with OA on the background of chondroprotective therapy. MATERIALS AND METHODS A comprehensive analysis of data presented in open sources, published and available on such resources as PubMed, EMBASE, Cochrane, and Library. RESULTS According to the available recommendations and the opinion of experts, among the methods of OA therapy, drugs containing pharmaceutical chondroitin sulfate are currently being discussed, which in a number of studies has demonstrated high antiresorptive effectiveness. CONCLUSION The use of drugs based on pharmaceutical chondroitin sulfate (Chondroguard) contributes not only to the reduction of pain in OA, but also has a positive effect on the processes of inflammation, including those associated with age-related changes in the body.
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Affiliation(s)
| | | | - Y S Prokofyeva
- Yevdokimov Moscow State University of Medicine and Dentistry
- Spasokukotsky City Clinical Hospital
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22
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Arthritis and the role of endogenous glucocorticoids. Bone Res 2020; 8:33. [PMID: 32963891 PMCID: PMC7478967 DOI: 10.1038/s41413-020-00112-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 07/09/2020] [Accepted: 07/27/2020] [Indexed: 12/17/2022] Open
Abstract
Rheumatoid arthritis and osteoarthritis, the most common forms of arthritis, are chronic, painful, and disabling conditions. Although both diseases differ in etiology, they manifest in progressive joint destruction characterized by pathological changes in the articular cartilage, bone, and synovium. While the potent anti-inflammatory properties of therapeutic (i.e., exogenous) glucocorticoids have been heavily researched and are widely used in clinical practice, the role of endogenous glucocorticoids in arthritis susceptibility and disease progression remains poorly understood. Current evidence from mouse models suggests that local endogenous glucocorticoid signaling is upregulated by the pro-inflammatory microenvironment in rheumatoid arthritis and by aging-related mechanisms in osteoarthritis. Furthermore, these models indicate that endogenous glucocorticoid signaling in macrophages, mast cells, and chondrocytes has anti-inflammatory effects, while signaling in fibroblast-like synoviocytes, myocytes, osteoblasts, and osteocytes has pro-inflammatory actions in rheumatoid arthritis. Conversely, in osteoarthritis, endogenous glucocorticoid signaling in both osteoblasts and chondrocytes has destructive actions. Together these studies provide insights into the role of endogenous glucocorticoids in the pathogenesis of both inflammatory and degenerative joint disease.
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23
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Zhang Z, Zha Z, Zhao Z, Liu W, Li W. Lentinan Inhibits AGE-Induced Inflammation and the Expression of Matrix-Degrading Enzymes in Human Chondrocytes. DRUG DESIGN DEVELOPMENT AND THERAPY 2020; 14:2819-2829. [PMID: 32764881 PMCID: PMC7373527 DOI: 10.2147/dddt.s243311] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Accepted: 05/19/2020] [Indexed: 12/17/2022]
Abstract
Background Chondrocyte-mediated inflammation is an important pathological component of osteoarthritis (OA) development. There are currently no therapies that completely reverse the development of OA. Lentinan, a type of polysaccharide derived from Lentinus edodes, has been demonstrated to possess significant anti-viral, anti-cancer, and anti-inflammatory effects, and has been recently used in the treatment of several inflammatory diseases. However, little research has focused on the pharmacological effect of lentinan in human OA. Materials and Methods We evaluated the anti-inflammatory and anti-ROS effects of lentinan in SW1353 chondrocytes treated with AGEs using real-time polymerase chain reaction (PCR), enzyme-linked immunosorbent assay (ELISA), and the nitro oxide-specific stain DAF-FM DA. The regulatory effects of lentinan on NF-κB and MAPK p38 signaling were investigated via promoter assay and Western blot analysis. Results We found that lentinan inhibits the production of pro-inflammatory cytokines, including IL-1β, TNF-α, IL-8 and the secretion of PGE2 and NO, by reducing the expression of COX-2 and iNOS in AGE-challenged chondrocytes. Lentinan also reduces AGE-induced increased expression of matrix metalloproteinases-1, −3, and −13 (MMP-1, MMP-3, MMP-13). Furthermore, lentinan has a similar effect on a disintegrin and metalloproteinase with thrombospondin motifs-4 and −5 (ADAMTS-4, ADAMTS-5). Mechanistically, lentinan reduces the activation of NF-κB. Conclusion Our findings indicate that lentinan shows a protective effect against AGE-induced inflammatory response in chondrocytes. These findings suggest that lentinan is a promising agent for the treatment of OA that could be used as a dietary supplement for patients with OA.
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Affiliation(s)
- Zhaozhen Zhang
- Department of Bone Surgery, Luoyang Orthopedic Hospital of Henan Province (Henan Provincial Orthopedic Hospital), Zhengzhou City, Henan Province 450000, People's Republic of China
| | - Zhuqing Zha
- Department of Bone Surgery, Luoyang Orthopedic Hospital of Henan Province (Henan Provincial Orthopedic Hospital), Zhengzhou City, Henan Province 450000, People's Republic of China
| | - Zhiwei Zhao
- Department of Bone Surgery, Luoyang Orthopedic Hospital of Henan Province (Henan Provincial Orthopedic Hospital), Zhengzhou City, Henan Province 450000, People's Republic of China
| | - Wenjing Liu
- Department of Bone Surgery, Luoyang Orthopedic Hospital of Henan Province (Henan Provincial Orthopedic Hospital), Zhengzhou City, Henan Province 450000, People's Republic of China
| | - Wuyin Li
- Department of Bone Surgery, Luoyang Orthopedic Hospital of Henan Province (Henan Provincial Orthopedic Hospital), Zhengzhou City, Henan Province 450000, People's Republic of China
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24
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Relja B, Land WG. Damage-associated molecular patterns in trauma. Eur J Trauma Emerg Surg 2020; 46:751-775. [PMID: 31612270 PMCID: PMC7427761 DOI: 10.1007/s00068-019-01235-w] [Citation(s) in RCA: 93] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 09/27/2019] [Indexed: 12/13/2022]
Abstract
In 1994, the "danger model" argued that adaptive immune responses are driven rather by molecules released upon tissue damage than by the recognition of "strange" molecules. Thus, an alternative to the "self versus non-self recognition model" has been provided. The model, which suggests that the immune system discriminates dangerous from safe molecules, has established the basis for the future designation of damage-associated molecular patterns (DAMPs), a term that was coined by Walter G. Land, Seong, and Matzinger. The pathological importance of DAMPs is barely somewhere else evident as in the posttraumatic or post-surgical inflammation and regeneration. Since DAMPs have been identified to trigger specific immune responses and inflammation, which is not necessarily detrimental but also regenerative, it still remains difficult to describe their "friend or foe" role in the posttraumatic immunogenicity and healing process. DAMPs can be used as biomarkers to indicate and/or to monitor a disease or injury severity, but they also may serve as clinically applicable parameters for optimized indication of the timing for, i.e., secondary surgeries. While experimental studies allow the detection of these biomarkers on different levels including cellular, tissue, and circulatory milieu, this is not always easily transferable to the human situation. Thus, in this review, we focus on the recent literature dealing with the pathophysiological importance of DAMPs after traumatic injury. Since dysregulated inflammation in traumatized patients always implies disturbed resolution of inflammation, so-called model of suppressing/inhibiting inducible DAMPs (SAMPs) will be very briefly introduced. Thus, an update on this topic in the field of trauma will be provided.
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Affiliation(s)
- Borna Relja
- Experimental Radiology, Department of Radiology and Nuclear Medicine, Otto von Guericke University Magdeburg, Magdeburg, Germany.
- Department of Trauma, Hand and Reconstructive Surgery, University Hospital Frankfurt, Goethe University Frankfurt am Main, 60590, Frankfurt, Germany.
| | - Walter Gottlieb Land
- Molecular ImmunoRheumatology, INSERM UMR_S1109, Laboratory of Excellence Transplantex, University of Strasbourg, Strasbourg, France
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25
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Han D, Fang Y, Tan X, Jiang H, Gong X, Wang X, Hong W, Tu J, Wei W. The emerging role of fibroblast-like synoviocytes-mediated synovitis in osteoarthritis: An update. J Cell Mol Med 2020; 24:9518-9532. [PMID: 32686306 PMCID: PMC7520283 DOI: 10.1111/jcmm.15669] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 05/29/2020] [Accepted: 07/23/2020] [Indexed: 02/06/2023] Open
Abstract
Osteoarthritis (OA), the most ubiquitous degenerative disease affecting the entire joint, is characterized by cartilage degradation and synovial inflammation. Although the pathogenesis of OA remains poorly understood, synovial inflammation is known to play an important role in OA development. However, studies on OA pathophysiology have focused more on cartilage degeneration and osteophytes, rather than on the inflamed and thickened synovium. Fibroblast-like synoviocytes (FLS) produce a series of pro-inflammatory regulators, such as inflammatory cytokines, nitric oxide (NO) and prostaglandin E2 (PGE2 ). These regulators are positively associated with the clinical symptoms of OA, such as inflammatory pain, joint swelling and disease development. A better understanding of the inflammatory immune response in OA-FLS could provide a novel approach to comprehensive treatment strategies for OA. Here, we have summarized recently published literatures referring to epigenetic modifications, activated signalling pathways and inflammation-associated factors that are involved in OA-FLS-mediated inflammation. In addition, the current related clinical trials and future perspectives were also summarized.
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Affiliation(s)
- Dafei Han
- Institute of Clinical Pharmacology, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Anhui Medical University, Hefei, China
| | - Yilong Fang
- Institute of Clinical Pharmacology, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Anhui Medical University, Hefei, China
| | - Xuewen Tan
- Institute of Clinical Pharmacology, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Anhui Medical University, Hefei, China
| | - Haifei Jiang
- Institute of Clinical Pharmacology, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Anhui Medical University, Hefei, China
| | - Xun Gong
- Institute of Clinical Pharmacology, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Anhui Medical University, Hefei, China
| | - Xinming Wang
- Institute of Clinical Pharmacology, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Anhui Medical University, Hefei, China
| | - Wenming Hong
- Institute of Clinical Pharmacology, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Anhui Medical University, Hefei, China
| | - Jiajie Tu
- Institute of Clinical Pharmacology, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Anhui Medical University, Hefei, China
| | - Wei Wei
- Institute of Clinical Pharmacology, Key Laboratory of Anti-Inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-Inflammatory and Immune Medicine, Anhui Medical University, Hefei, China
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26
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Steenbeke M, De Bruyne S, De Buyzere M, Lapauw B, Speeckaert R, Petrovic M, Delanghe JR, Speeckaert MM. The role of soluble receptor for advanced glycation end-products (sRAGE) in the general population and patients with diabetes mellitus with a focus on renal function and overall outcome. Crit Rev Clin Lab Sci 2020; 58:113-130. [PMID: 32669010 DOI: 10.1080/10408363.2020.1791045] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Isoforms of the receptor for advanced glycation end-product (RAGE) protein, which lack the transmembrane and the signaling (soluble RAGE or sRAGE) domains are hypothesized to counteract the detrimental action of the full-length receptor by acting as a decoy, and they provide a potential tool to treat RAGE-associated diseases. Multiple studies have explored the relationship between sRAGE and endogenous secretory RAGE and its polymorphism and obesity, metabolic syndrome, atherosclerosis, kidney function, and increased mortality in the general population. In addition, sRAGE may be a key player in the pathogenesis of diabetes mellitus and its microvascular (e.g. kidney disease) as well as macrovascular (e.g. cardiovascular disease) complications. In this review, we focus on the role of sRAGE as a biomarker in these specific areas. As there is a lack of an underlying unifying hypothesis about how sRAGE changes according to the disease condition or risk factor, there is a call to incorporate all three players of the AGE-RAGE axis into a new universal biomarker/risk marker: (AGE + RAGE)/sRAGE. However, the measurement of RAGE in humans is not practical as it is a cell-bound receptor for which tissue is required for analysis. A high AGE/sRAGE ratio may be a valuable alternative and practical universal biomarker/risk marker for diseases associated with the AGE-RAGE axis, irrespective of low or high serum sRAGE concentrations.
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Affiliation(s)
- Mieke Steenbeke
- Department of Nephrology, Ghent University Hospital, Ghent, Belgium
| | - Sander De Bruyne
- Department of Clinical Chemistry, Ghent University Hospital, Ghent, Belgium
| | - Marc De Buyzere
- Department of Internal Medicine, Ghent University, Ghent, Belgium
| | - Bruno Lapauw
- Department of Endocrinology, Ghent University Hospital, Ghent, Belgium
| | | | - Mirko Petrovic
- Department of Geriatrics, Ghent University Hospital, Ghent, Belgium
| | - Joris R Delanghe
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Marijn M Speeckaert
- Department of Nephrology, Ghent University Hospital, Ghent, Belgium.,Research Foundation Flanders, Brussels, Belgium
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27
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Zeng Y, Liu Z, Tan X, Lei L. The GPR55 antagonist CID16020046 mitigates advanced glycation end products (AGEs)- induced chondrocyte activation. Chem Biol Interact 2020; 325:109088. [PMID: 32360554 DOI: 10.1016/j.cbi.2020.109088] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 03/14/2020] [Accepted: 04/02/2020] [Indexed: 01/30/2023]
Abstract
Osteoarthritis (OA) is one of the most common degenerative joint diseases in aging people. The activation of chondrocytes and their dysregulation are closely related to the pathogenesis of OA. GPR55 is an unique orphan G-receptor which binds to cannabinoids. In this study, we explored the role of GPR55 in advanced glycation end productions (AGEs)- induced chondrocytes activation in cultured cells. We showed that AGEs dose dependently induced GPR55 expression in ATDC5 chondrocytes. The blockage of GPR55 by its newly discovered antagonist-CID16020046 mitigated AGEs- induced increase in cellular ROS and decrease in antioxidant NRF2. Moreover, CID16020046 showed a dose-response suppressive effect on AGEs- induced expression of the major inflammatory mediators, including COX-2 and iNOS, and the production of NO and PGE2. CID16020046 also dose responsively inhibited AGEs- induced key effectors of cartilage degradation such as MMP-3 and MMP-13. In consequence, CID16020046 showed robust inhibition on AGEs- induced type II collagen degradation. Mechanistically, our data demonstrated that CID16020046 mediated GPR55 blockage ameliorated AGEs- induced NF-κB activation as revealed by its inhibition on IκBα, nuclear p65 translocation and NF-κB promoter activity. Collectively, our study demonstrates that GPR55 signaling mediates AGEs- induced chondrocyte activation, and the targeted blockage of GPR55 pathway could be therapeutic choice in the treatment of osteoarthritis.
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Affiliation(s)
- Yong Zeng
- Department of Emergency, The Second Hospital Affiliated to Chongqing Medical University, Chongqing, 400010, China
| | - Zhichuan Liu
- Department of Emergency, The Second Hospital Affiliated to Chongqing Medical University, Chongqing, 400010, China.
| | - Xingqin Tan
- Department of Anesthesiology, Children's Hospital of Chongqing medical university, Chongqing, 400010, China
| | - Lei Lei
- Department of Neurology, The First People's Hospital of Chongqing Liang Jiang New District, Chongqing, 400010, China
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Xu C, Sheng S, Dou H, Chen J, Zhou K, Lin Y, Yang H. α-Bisabolol suppresses the inflammatory response and ECM catabolism in advanced glycation end products-treated chondrocytes and attenuates murine osteoarthritis. Int Immunopharmacol 2020; 84:106530. [PMID: 32334386 DOI: 10.1016/j.intimp.2020.106530] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 04/18/2020] [Accepted: 04/19/2020] [Indexed: 12/12/2022]
Abstract
As a chronic musculoskeletal degeneration disease, osteoarthritis (OA) clinically manifests as joint pain, stiffness and a limited range of movement. OA has affected the life quality of at least one-tenth of the population but lacks satisfactory treatments. α-Bisabolol (BISA) is a small oily sesquiterpene alcohol widely found in essential oils of chamomile (Matricaria recutita), salvia and wood of Candeia and has multiple biological properties, particularly an anti-inflammatory effect. The purpose of this study is to assess the anti-inflammatory and chondroprotective effect of BISA in OA progression and explore its underlying mechanism. We isolated human chondrocytes and treated them with advanced glycation end products (AGEs) to imitate OA progression in vitro. BISA pretreatment suppressed the AGE-induced inflammatory reaction and extracellular matrix (ECM) degeneration by blocking nuclear factor kappa B (NF-κB), p38 and c-Jun N-terminal kinase (JNK) signaling. Moreover, a mouse destabilization of the medial meniscus (DMM) model was established by surgery to investigate BISA protection in vivo. BISA administration attenuated DMM-induced radiological and histopathological changes relative to the DMM group and resulted in lower OARSI scores. Taken together, the results of our study indicate the potential of BISA in OA therapy.
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Affiliation(s)
- Cong Xu
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China; Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Sunren Sheng
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Haicheng Dou
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Jiaoxiang Chen
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Kailiang Zhou
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Yan Lin
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Huilin Yang
- Department of Orthopaedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China.
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29
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Berenbaum F, Walker C. Osteoarthritis and inflammation: a serious disease with overlapping phenotypic patterns. Postgrad Med 2020; 132:377-384. [PMID: 32100608 DOI: 10.1080/00325481.2020.1730669] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Globally, osteoarthritis (OA) is the most prevalent arthritic condition in those aged over 60 years. OA has a high impact on patient disability and is associated with a significant economic burden. Pain is the most common first sign of disease and the leading cause of disability. Data demonstrating the increasing global prevalence of OA, together with a greater understanding of the burden of the disease, have led to a reassessment of the seriousness of OA and calls for the designation of OA as a serious disease in line with the diseases impact on comorbidity, disability, and mortality. While OA was traditionally seen as a prototypical 'wear and tear' disease, it is now more accurately thought of as a disease of the whole joint involving cartilage together with subchondral bone and synovium. As more has become known of the pathophysiology of OA, it has become increasingly common for it to be described using a number of overlapping phenotypes. Patients with OA will likely experience multiple phenotypes during their disease. This review focuses on what we feel are three key phenotypes: post-trauma, metabolic, and aging. A greater understanding of OA phenotypes, particularly at the early stages of disease, may be necessary to improve treatment outcomes. In the future, non-pharmacological and pharmacological treatments could be tailored to patients based on the key features of their phenotype and disease pathway.
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Affiliation(s)
- Francis Berenbaum
- INSERM CRSA, Department of Rheumatology, Hospital Saint Antoine, AP-HP.Sorbonne Université , Paris, France
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30
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Shu Z, Miao X, Tang T, Zhan P, Zeng L, Jiang Y. The GSK‑3β/β‑catenin signaling pathway is involved in HMGB1‑induced chondrocyte apoptosis and cartilage matrix degradation. Int J Mol Med 2020; 45:769-778. [PMID: 31922219 PMCID: PMC7015138 DOI: 10.3892/ijmm.2020.4460] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 12/10/2019] [Indexed: 01/06/2023] Open
Abstract
Knee osteoarthritis (KOA) is a common joint disease with a high incidence rate among middle‑aged and elderly individuals. However, the precise underlying pathological mechanisms and effective treatment of this disease remain to be determined. To explore the effect of high mobility group box 1 (HMGB1) on chondrocyte apoptosis and catabolism, the ATDC5 cell line was cultured as an in vitro model for cartilage research. Cultured cells were treated with recombinant HMGB1 at different concentrations. Hoechst staining and flow cytometry demonstrated that HMGB1 administration significantly induced apoptosis of ATDC5 cells, which was the same as the effect of interleukin‑1β treatment. HMGB1 also induced cartilage matrix degradation, as shown by Alcian blue staining. Moreover, HMGB1 markedly upregulated the expression levels of matrix metallopeptidases (MMPs) and a disintegrin and metalloproteinase with thrombospondin motifs (ADAMTS), while genetic silencing of HMGB1 significantly suppressed their expressions. The glycogen synthase kinase (GSK)‑3β/β‑catenin pathway was activated upon HMGB1 treatment. Pharmacological inhibitors or HMGB1 knockdown inactivated the GSK‑3β/β‑catenin pathway, inhibited the expression levels of downstream genes, including MMPs and ADAMTS, and attenuated the apoptosis of ATDC5 cells. Furthermore, the data demonstrated that HMGB1 promoted chondrocyte dysfunction via the regulation of estrogen sulfotransferase and Runt‑related transcription factor 2. Thus, the findings of the present study demonstrated that HMGB1 induces chondrocyte cell apoptosis via activation of GSK‑3β/β‑catenin and the subsequent expression of multiple targeted genes.
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Affiliation(s)
- Zhiyong Shu
- Department of Orthopedics, Zhuhai People's Hospital, Zhuhai, Guangdong 519000, P.R. China
| | - Xiaogang Miao
- Department of Orthopedics, Zhuhai People's Hospital, Zhuhai, Guangdong 519000, P.R. China
| | - Tainhua Tang
- Department of Orthopedics, Zhuhai People's Hospital, Zhuhai, Guangdong 519000, P.R. China
| | - Peng Zhan
- Department of Orthopedics, Zhuhai People's Hospital, Zhuhai, Guangdong 519000, P.R. China
| | - Langqing Zeng
- Department of Orthopedics, Zhuhai People's Hospital, Zhuhai, Guangdong 519000, P.R. China
| | - Yuwen Jiang
- Department of Orthopedics, Zhuhai People's Hospital, Zhuhai, Guangdong 519000, P.R. China
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31
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Luo TD, Marquez-Lara A, Stone AV, Mannava S, Howse EA, Rosas S, Schallmo MS, Atilla HA, Stubbs AJ. Diabetic hip arthropathy is associated with a higher prevalence of femoral head chondromalacia: a case-controlled study. Hip Int 2019; 29:527-534. [PMID: 30465436 DOI: 10.1177/1120700018813829] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
INTRODUCTION No previous studies have characterised hip joint disease in diabetic patients undergoing hip arthroscopy. The purpose of our study was to evaluate intra-articular hip pathology and surgical variables in patients with diabetes compared to matched, non-diabetic controls. We hypothesised that diabetic patients would demonstrate a higher prevalence and severity of hip chondral pathology. METHODS We retrospectively reviewed 795 consecutive hip arthroscopies performed by a single surgeon between 2010 and 2015. Patients ⩾18 years of age without a history of diabetes served as controls and were matched based on age, sex, body mass index, duration of symptoms, and operative side. Clinical symptoms, preoperative physical examination, and radiologic and intraoperative findings were assessed. The primary outcomes were the acetabular and femoral head chondromalacia index (CMI), calculated as the product of the Outerbridge chondromalacia grade and surface area (mm2*severity). RESULTS 15 diabetic patients were matched to 137 non-diabetic controls. Diabetic patients demonstrated a higher prevalence of femoral head chondromalacia compared to controls both on magnetic resonance imaging (45.5% vs. 7.5%, p = 0.002) and during arthroscopy (100% vs. 75.9%, p = 0.042). Femoral head chondromalacia in diabetic patients had higher Outerbridge grade (2.4 vs. 2.0, p = 0.030) but similar CMI (513.0 vs. 416.4, p = 0.298) compared to controls. DISCUSSION Femoral head chondral pathology was more prevalent and of higher severity grade in diabetic patients. The prevalence, size, and severity of acetabular chondral disease were similar between diabetic and non-diabetic patients. Multivariate analysis demonstrated that diabetic status was independently associated with the presence of femoral head chondromalacia.
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Affiliation(s)
- T David Luo
- 1 Department of Orthopaedic Surgery, Wake Forest Baptist Medical Center, Winston-Salem, NC, USA
| | - Alejandro Marquez-Lara
- 1 Department of Orthopaedic Surgery, Wake Forest Baptist Medical Center, Winston-Salem, NC, USA
| | - Austin V Stone
- 2 Department of Orthopaedic Surgery, Division of Sports Medicine, Rush University Medical Center, Chicago, IL, USA
| | - Sandeep Mannava
- 3 Department of Orthopaedics and Rehabilitation, Division of Sports Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Elizabeth A Howse
- 4 Department of Emergency Medicine, Kaiser Permanente Walnut Creek Medical Center, Walnut Creek, CA, USA
| | - Samuel Rosas
- 1 Department of Orthopaedic Surgery, Wake Forest Baptist Medical Center, Winston-Salem, NC, USA
| | - Michael S Schallmo
- 1 Department of Orthopaedic Surgery, Wake Forest Baptist Medical Center, Winston-Salem, NC, USA
| | - H Atil Atilla
- 5 Department of Orthopaedics and Traumatology, Mevki Military Hospital, Ankara, Turkey
| | - Allston J Stubbs
- 1 Department of Orthopaedic Surgery, Wake Forest Baptist Medical Center, Winston-Salem, NC, USA
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Lin SS, Yuan LJ, Niu CC, Tu YK, Yang CY, Ueng SWN. Hyperbaric oxygen inhibits the HMGB1/RAGE signaling pathway by upregulating Mir-107 expression in human osteoarthritic chondrocytes. Osteoarthritis Cartilage 2019; 27:1372-1381. [PMID: 31146014 DOI: 10.1016/j.joca.2019.05.011] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 05/15/2019] [Accepted: 05/17/2019] [Indexed: 02/02/2023]
Abstract
OBJECTIVE MicroRNA (miRNA)107 expression is downregulated but high mobility group box 1 (HMGB-1), Toll-like receptors (TLRs), and receptor for advanced glycation end products (RAGE) are upregulated in osteoarthritic (OA) cartilage. We investigated mir-107/HMGB-1 signaling in OA after hyperbaric oxygen (HBO) treatment. DESIGN MiR-107 mimic was transfected and the HMGB-1 was analyzed in OA chondrocytes. MiRNA targets were identified using bioinformatics and a luciferase reporter assay. After HBO treatment, the mRNA or protein levels of HMGB-1, RAGE, TLR2, TLR4, and inducible nitric oxide (NO) synthase (iNOS) and phosphorylation of mitogen-activated protein kinase (MAPK) were evaluated. The secreted HMGB-1 and matrix metalloproteases (MMPs) levels were quantified. Finally, we detected the HMGB-1 and iNOS expression in rabbit cartilage defects. RESULTS Overexpression of miR-107 suppressed HMGB-1 expression in OA chondrocytes. The 3'UTR of HMGB-1 mRNA contained a 'seed-matched-sequence' for miR-107. MiR-107 was induced by HBO and a marked suppression of HMGB-1 was observed simultaneously in OA chondrocytes. Knockdown of miR-107 upregulated HMGB-1 expression in hyperoxic cells. HBO downregulated the mRNA and protein expression of HMGB-1, RAGE, TLR2, TLR4, and iNOS, and the secretion of HMGB-1. HBO decreased the nuclear translocation of nuclear factor (NF)-κB, downregulated the phosphorylation of MAPK, and significantly decreased the secretion of MMPs. Morphological and immunohistochemical observation demonstrated that HBO markedly enhanced cartilage repair and the area stained positive for HMGB-1 and iNOS tended to be lower in the HBO group. CONCLUSIONS HBO inhibits HMGB-1/RAGE signaling related pathways by upregulating miR-107 expression in human OA chondrocytes.
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Affiliation(s)
- S-S Lin
- Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, Linkou, Taiwan; Department of Nursing, Chang Gung University of Science and Technology, Taoyuan, Taiwan.
| | - L-J Yuan
- Department of Orthopaedic Surgery, E-Da Hospital, I-Shou University.
| | - C-C Niu
- Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, Linkou, Taiwan.
| | - Y-K Tu
- Department of Orthopaedic Surgery, E-Da Hospital, I-Shou University.
| | - C-Y Yang
- Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, Linkou, Taiwan.
| | - S W N Ueng
- Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, Linkou, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan; Bone and Joint Research Center, Chang Gung Memorial Hospital, Linkou, Taiwan.
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O’Brien MS, McDougall JJ. Age and frailty as risk factors for the development of osteoarthritis. Mech Ageing Dev 2019; 180:21-28. [DOI: 10.1016/j.mad.2019.03.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 02/28/2019] [Accepted: 03/15/2019] [Indexed: 12/31/2022]
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Hwang HS, Lee MH, Kim HA. Fibronectin fragment inhibits xylosyltransferase-1 expression by regulating Sp1/Sp3- dependent transcription in articular chondrocytes. Osteoarthritis Cartilage 2019; 27:833-843. [PMID: 30685487 DOI: 10.1016/j.joca.2019.01.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2018] [Revised: 01/09/2019] [Accepted: 01/15/2019] [Indexed: 02/02/2023]
Abstract
OBJECTIVE We investigated the effects of 29-kDa amino-terminal fibronectin fragment (29-kDa FN-f) on xylosyltransferase-1 (XT-1), an essential anabolic enzyme that catalyzes the initial and rate-determining step in glycosaminoglycan chain synthesis, in human primary chondrocytes. METHODS Proteoglycan and XT-1 expression in cartilage tissue was analyzed using safranin O staining and immunohistochemistry. The effects of 29-kDa FN-f on XT-1 expression and its relevant signaling pathway were analyzed by quantitative real-time-PCR, immunoblotting, chromatin immunoprecipitation, and immunoprecipitation assays. The receptors for 29-kDa FN-f were investigated using small interference RNA and blocking antibodies. RESULTS The expression of XT-1 was significantly lower in human osteoarthritis cartilage than in normal cartilage. Intra-articular injection of 29-kDa FN-f reduced proteoglycan levels and XT-1 expression in murine cartilage. In addition, in 29-kDa FN-f-treated cells, XT-1 expression was significantly suppressed at both the mRNA and protein levels, modulated by the transcription factors specificity protein 1 (Sp1), Sp3, and activator protein 1 (AP-1). The 29-kDa FN-f suppressed the binding of Sp1 to the promoter region of XT-1 and enhanced the binding of Sp3 and AP-1. Inhibition of mitogen-activated protein kinase and nuclear factor kappa B signaling pathways restored the 29-kDa FN-f-inhibited XT-1 expression, along with the altered expression of Sp1 and Sp3. Blockading toll-like receptor 2 (TLR-2) and integrin α5β1 via siRNA and blocking antibodies revealed that the effects of 29-kDa FN-f on XT-1 expression were mediated through the TLR-2 and integrin α5β1 signaling pathways. CONCLUSION These results demonstrate that 29-kDa FN-f negatively affects cartilage anabolism by regulating glycosaminoglycan formation through XT-1.
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MESH Headings
- Aged
- Animals
- Cartilage, Articular/drug effects
- Cartilage, Articular/enzymology
- Cartilage, Articular/pathology
- Cells, Cultured
- Chondrocytes/drug effects
- Chondrocytes/enzymology
- Down-Regulation/drug effects
- Enzyme Inhibitors/pharmacology
- Female
- Fibronectins/pharmacology
- Humans
- Male
- Mice, Inbred C57BL
- Middle Aged
- Osteoarthritis, Knee/enzymology
- Osteoarthritis, Knee/genetics
- Osteoarthritis, Knee/pathology
- Pentosyltransferases/antagonists & inhibitors
- Pentosyltransferases/biosynthesis
- Pentosyltransferases/genetics
- Pentosyltransferases/metabolism
- Peptide Fragments/pharmacology
- RNA, Messenger/genetics
- Signal Transduction/drug effects
- Sp1 Transcription Factor/genetics
- Sp1 Transcription Factor/metabolism
- Sp3 Transcription Factor/genetics
- Sp3 Transcription Factor/metabolism
- Transcription Factor AP-1/genetics
- Transcription Factor AP-1/metabolism
- Transcription, Genetic
- UDP Xylose-Protein Xylosyltransferase
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Affiliation(s)
- H S Hwang
- Division of Rheumatology, Department of Internal Medicine, Hallym University Sacred Heart Hospital, Kyunggi, 431-070, South Korea; Institute for Skeletal Aging, Hallym University, Chunchon 200-702, South Korea.
| | - M H Lee
- Division of Rheumatology, Department of Internal Medicine, Hallym University Sacred Heart Hospital, Kyunggi, 431-070, South Korea; Institute for Skeletal Aging, Hallym University, Chunchon 200-702, South Korea.
| | - H A Kim
- Division of Rheumatology, Department of Internal Medicine, Hallym University Sacred Heart Hospital, Kyunggi, 431-070, South Korea; Institute for Skeletal Aging, Hallym University, Chunchon 200-702, South Korea.
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Teissier T, Boulanger É. The receptor for advanced glycation end-products (RAGE) is an important pattern recognition receptor (PRR) for inflammaging. Biogerontology 2019; 20:279-301. [PMID: 30968282 DOI: 10.1007/s10522-019-09808-3] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 04/02/2019] [Indexed: 12/20/2022]
Abstract
The receptor for advanced glycation end-products (RAGE) was initially characterized and named for its ability to bind to advanced glycation end-products (AGEs) that form upon the irreversible and non-enzymatic interaction between nucleophiles, such as lysine, and carbonyl compounds, such as reducing sugars. The concentrations of AGEs are known to increase in conditions such as diabetes, as well as during ageing. However, it is now widely accepted that RAGE binds with numerous ligands, many of which can be defined as pathogen-associated molecular patterns (PAMPs) or damage-associated molecular patterns (DAMPs). The interaction between RAGE and its ligands mainly results in a pro-inflammatory response, and can lead to stress events often favouring mitochondrial dysfunction or cellular senescence. Thus, RAGE should be considered as a pattern recognition receptor (PRR), similar to those that regulate innate immunity. Innate immunity itself plays a central role in inflammaging, the chronic low-grade and sterile inflammation that increases with age and is a potentially important contributory factor in ageing. Consequently, and in addition to the age-related accumulation of PAMPs and DAMPs and increases in pro-inflammatory cytokines from senescent cells and damaged cells, PRRs are therefore important in inflammaging. We suggest here that, through its interconnection with immunity, senescence, mitochondrial dysfunction and inflammasome activation, RAGE is a key contributor to inflammaging and that the pro-longevity effects seen upon blocking RAGE, or upon its deletion, are thus the result of reduced inflammaging.
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Affiliation(s)
- Thibault Teissier
- Univ. Lille, Inserm, CHU Lille, U995 - LIRIC - Lille Inflammation Research International Center, 59000, Lille, France.
| | - Éric Boulanger
- Univ. Lille, Inserm, CHU Lille, U995 - LIRIC - Lille Inflammation Research International Center, 59000, Lille, France.,Department of Geriatrics and Ageing Biology, School of Medicine, Lille University, Lille, France.,Department of Geriatrics, Lille University Hospital, Lille, France
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Lepetsos P, Papavassiliou KA, Papavassiliou AG. Redox and NF-κB signaling in osteoarthritis. Free Radic Biol Med 2019; 132:90-100. [PMID: 30236789 DOI: 10.1016/j.freeradbiomed.2018.09.025] [Citation(s) in RCA: 210] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 09/12/2018] [Accepted: 09/16/2018] [Indexed: 02/07/2023]
Abstract
Human cells have to deal with the constant production of reactive oxygen species (ROS). Although ROS overproduction might be harmful to cell biology, there are plenty of data showing that moderate levels of ROS control gene expression by maintaining redox signaling. Osteoarthritis (OA) is the most common joint disorder with a multi-factorial etiology including overproduction of ROS. ROS overproduction in OA modifies intracellular signaling, chondrocyte life cycle, metabolism of cartilage matrix and contributes to synovial inflammation and dysfunction of the subchondral bone. In arthritic tissues, the NF-κB signaling pathway can be activated by pro-inflammatory cytokines, mechanical stress, and extracellular matrix degradation products. This activation results in regulation of expression of many cytokines, inflammatory mediators, transcription factors, and several matrix-degrading enzymes. Overall, NF-κB signaling affects cartilage matrix remodeling, chondrocyte apoptosis, synovial inflammation, and has indirect stimulatory effects on downstream regulators of terminal chondrocyte differentiation. Interaction between redox signaling and NF-κB transcription factors seems to play a distinctive role in OA pathogenesis.
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Affiliation(s)
- Panagiotis Lepetsos
- Fourth Department of Orthopaedics & Trauma, 'KAT' General Hospital, Kifissia, 14561 Athens, Greece
| | - Kostas A Papavassiliou
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 75 M. Asias Street, 11527 Athens, Greece
| | - Athanasios G Papavassiliou
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 75 M. Asias Street, 11527 Athens, Greece.
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Niu CC, Lin SS, Yuan LJ, Lu ML, Ueng SWN, Yang CY, Tsai TT, Lai PL. Upregulation of miR-107 expression following hyperbaric oxygen treatment suppresses HMGB1/RAGE signaling in degenerated human nucleus pulposus cells. Arthritis Res Ther 2019; 21:42. [PMID: 30704538 PMCID: PMC6357369 DOI: 10.1186/s13075-019-1830-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 01/18/2019] [Indexed: 02/07/2023] Open
Abstract
Background The expression of both high-mobility group box 1 (HMGB1) and receptor for advanced glycation end-products (RAGE) is upregulated in degenerated discs. HMGB1 is known to function as a coupling factor between hypoxia and inflammation in arthritis, and this inflammatory response is modulated by microRNAs (miRNAs), with miR-107 expression downregulated during hypoxia. In this study, we investigated the regulation of the miR-107/HMGB1/RAGE pathway in degenerated nucleus pulposus cells (NPCs) after hyperbaric oxygen (HBO) treatment. Methods NPCs were separated from human degenerated intervertebral disc tissues. The control cells were maintained in 5% CO2/95% air, and the hyperoxic cells were exposed to 100% O2 at 2.5 atmospheres absolute. MiRNA expression profiling was performed via microarray and confirmed by real-time PCR, and miRNA target genes were identified using bioinformatics and luciferase reporter assays. The cellular protein and mRNA levels of HMGB1, RAGE, and inducible nitric oxide synthase (iNOS) were assessed, and the phosphorylation of MAPK (p38MAPK, ERK, and JNK) was evaluated. Additionally, cytosolic and nuclear fractions of the IκBα and NF-κB p65 proteins were analyzed, and secreted HMGB1 and metalloprotease (MMP) levels in the conditioned media were quantified. Results Using microarray analyses, 96 miRNAs were identified as upregulated and 66 downregulated following HBO treatment. Based on these results, miR-107 was selected for further investigation. Bioinformatics analyses indicated that the 3′ untranslated region of the HMGB1 mRNA contained the “seed-matched-sequence” for hsa-miR-107, which was validated via dual-luciferase reporter assays. MiR-107 was markedly induced by HBO, and simultaneous suppression of HMGB1 was observed in NPCs. Knockdown of miR-107 resulted in upregulation of HMGB1 expression in HBO-treated cells, and HBO treatment downregulated the mRNA and protein levels of HMGB1, RAGE, and iNOS and the secretion of HMGB1. In addition, HBO treatment upregulated the protein levels of cytosolic IκBα and decreased the nuclear translocation of NF-κB in NPCs. Moreover, HBO treatment downregulated the phosphorylation of p38MAPK, ERK, and JNK and significantly decreased the secretion of MMP-3, MMP-9, and MMP-13. Conclusions HBO inhibits pathways related to HMGB1/RAGE signaling via upregulation of miR-107 expression in degenerated human NPCs.
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Affiliation(s)
- Chi-Chien Niu
- Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, No 5, Fu-Hsing Street 333, Taoyuan, Taoyuan, Taiwan. .,College of Medicine, Chang Gung University, Taoyuan, Taiwan.
| | - Song-Shu Lin
- Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, No 5, Fu-Hsing Street 333, Taoyuan, Taoyuan, Taiwan.,Department of Nursing, Chang Gung University of Science and Technology, Taoyuan, Taiwan
| | - Li-Jen Yuan
- Department of Orthopaedic Surgery, E-Da Hospital/I-Shou University, Kaohsiung, Taiwan
| | - Meng-Ling Lu
- Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Steve W N Ueng
- Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, No 5, Fu-Hsing Street 333, Taoyuan, Taoyuan, Taiwan.,College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Chuen-Yung Yang
- Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, No 5, Fu-Hsing Street 333, Taoyuan, Taoyuan, Taiwan
| | - Tsung-Ting Tsai
- Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, No 5, Fu-Hsing Street 333, Taoyuan, Taoyuan, Taiwan.,College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Bone and Joint Research Center, Chang Gung Memorial Hospital, Linkou, Taiwan
| | - Po-Liang Lai
- Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, No 5, Fu-Hsing Street 333, Taoyuan, Taoyuan, Taiwan
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Xue X, Chen Y, Wang Y, Zhan J, Chen B, Wang X, Pan X. Troxerutin suppresses the inflammatory response in advanced glycation end-product-administered chondrocytes and attenuates mouse osteoarthritis development. Food Funct 2019; 10:5059-5069. [PMID: 31359010 DOI: 10.1039/c9fo01089k] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
As a chronic degenerative joint disease, osteoarthritis (OA) is clinically characterized by a high incidence, long-term pain, and limited joint activity but without effective preventative therapy.
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Affiliation(s)
- Xinghe Xue
- Department of Orthopaedics
- The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University
- Wenzhou
- China
- Zhejiang Provincial Key Laboratory of Orthpaedics
| | - Yunlin Chen
- Department of Orthopaedics
- The Second Affiliated Hospital
- Zhejiang University School of Medicine
- Hangzhou
- China
| | - Ye Wang
- The Second School of Medicine
- Wenzhou Medical University
- Wenzhou
- China
| | - Jingdi Zhan
- Department of Orthopaedics
- The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University
- Wenzhou
- China
- Zhejiang Provincial Key Laboratory of Orthpaedics
| | - Bin Chen
- Department of Orthopaedics
- The Second Affiliated Hospital of Jiaxing University
- Jiaxing
- China
| | - Xiangyang Wang
- Department of Orthopaedics
- The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University
- Wenzhou
- China
- Zhejiang Provincial Key Laboratory of Orthpaedics
| | - Xiaoyun Pan
- Department of Orthopaedics
- The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University
- Wenzhou
- China
- Zhejiang Provincial Key Laboratory of Orthpaedics
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van den Bosch MHJ. Inflammation in osteoarthritis: is it time to dampen the alarm(in) in this debilitating disease? Clin Exp Immunol 2018; 195:153-166. [PMID: 30421798 DOI: 10.1111/cei.13237] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/02/2018] [Indexed: 12/25/2022] Open
Abstract
Osteoarthritis (OA) is the most common joint disease that strongly reduces the quality of life in patients; However, no disease-modifying therapy is available. For a long time, OA was considered a non-inflammatory disease that was the result of 'wear-and-tear' and abnormal mechanics, and therefore many considered the term 'osteoarthritis' a misnomer. However, during the last decades the notion arose that inflammation is not only present in the majority of OA patients but, rather, actively involved in the progression of the disease. Influx of immune cells is observed in the synovium and a plethora of inflammatory mediators is present in tissues and fluids from OA patients. These mediators cause the production of degrading enzymes that break down the cartilage matrix, which is the main hallmark of OA. Alarmins, which belong to the group of danger signals, have been implicated in many inflammatory diseases. They are among the first factors to be released upon cell stress due to, for example, infection, damage and inflammation. They attract and activate cells of the immune system and therefore lie at the base of the inflammatory reaction. In this narrative review, an overview of the history of OA, the evolving concept of inflammation as important factor in the OA pathogenesis, and particularly the central role that alarmins play in the initiation and maintenance of the low-grade inflammatory response in OA, is provided. Moreover, the targeting of alarmins as a promising approach to dampen the inflammation in OA is highlighted.
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Affiliation(s)
- M H J van den Bosch
- Experimental Rheumatology, Radboud university medical center, Nijmegen, the Netherlands
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40
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Satake Y, Takahashi K, Saito M, Takai S. Objective Colorimetric Evaluation of Aging-related Articular Cartilage Degeneration. J NIPPON MED SCH 2018; 85:157-165. [PMID: 30135342 DOI: 10.1272/jnms.jnms.2018_85-23] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
BACKGROUND Aging is a primary risk factor for the development of osteoarthritis (OA). Recently, advanced glycation end products (AGEs) have received much attention in relation to aging and OA. Some AGEs are reported to be brownish, but the association between AGE levels and browning in articular cartilage is unknown. The purposes of this study were first, to develop a colorimetric device to evaluate the quality and aging of the articular cartilage, and second, to investigate the relationship between AGE levels and color of articular cartilage by using this device without enzymatic digestion of the articular surface. DESIGN Open-label, single-center, prospective study Methods: Seven patients with OA (1 man, 6 women; mean age, 74.4 years; age range 58-81 years) who underwent primary total knee arthroplasty at our university hospital between July and December 2014 were enrolled in the study. Articular cartilage was harvested from the femur and tibia during surgery. The color and chromaticity of the articular cartilage was assayed by using a newly developed device with high validity. The characteristics of the articular cartilage were examined using the CIE XYZ Color Coordinate System (International Commission on Illumination, Vienna, Austria), and the color indicative of browning of the cartilage was defined on the X- and Y-axes. The brightness was adjusted and the specimen was photographed submerged in distilled water and the color was measured using a commercial luminance and color analyzer. Measurement of X and Y was repeated 3 times per site at 9 different points on the articular cartilage surface, and the mean value per specimen was calculated. Pentosidine (a well characterized biomarker of AGEs) levels and hydroxyproline content in articular cartilage were determined by high-performance liquid chromatography (HPLC). The correlation between age, articular cartilage AGE levels, and browning was analyzed using Spearman's rank correlation coefficient. The association between the degree of macroscopic degeneration and AGE levels was analyzed using one-way analysis of variance. RESULTS Age was positively correlated with pentosidine levels in articular cartilage (rs=0.322) and browning of articular cartilage (rs=0.261). However, a weak negative correlation was observed between pentosidine levels and browning of articular cartilage (rs=-0.564, p=0.004). No positive relationship was observed between pentosidine levels and browning of articular cartilage in the visible spectrum. CONCLUSIONS This study developed an original colorimetric device with high validity. Browning of articular cartilage increased with age, but this study did not detect pentosidine-caused browning. Further study is needed to clarify the factors associated with browning of cartilage.
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Affiliation(s)
| | | | - Mitsuru Saito
- Department of Orthopaedic Surgery, Jikei University School of Medicine
| | - Shinro Takai
- Department of Orthopaedic Surgery, Nippon Medical School
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Dziki JL, Hussey G, Badylak SF. Alarmins of the extracellular space. Semin Immunol 2018; 38:33-39. [PMID: 30170910 DOI: 10.1016/j.smim.2018.08.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Accepted: 08/22/2018] [Indexed: 12/30/2022]
Abstract
The ability of the immune system to discriminate between healthy-self, abnormal-self, and non-self has been attributed mainly to alarmins signaling as "danger signals". It is now evident, however, that alarmins are much more complex and can perform specialized functions that can regulate a wide spectrum of processes ranging from propagation of disease to tissue homeostasis. As such, alarmins and their signaling mechanisms are now actively pursued as therapeutic targets. The clinical utility of alarmins requires an understanding of their specific localization. Specifically, many alarmins can function paradoxically depending upon their localization, intra or extracellular. The present review focuses upon alarmin presence and differential expression in the extracellular space versus within the cell and how variation of the localization of alarmins can reveal important mechanistic insights into alarmin functions and their efficacy as biomarkers of disease and therapeutic targets.
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Affiliation(s)
- Jenna L Dziki
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, United States; Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - George Hussey
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, United States; Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Stephen F Badylak
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, United States; Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, United States.
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Drevet S, Gavazzi G, Grange L, Dupuy C, Lardy B. Reactive oxygen species and NADPH oxidase 4 involvement in osteoarthritis. Exp Gerontol 2018; 111:107-117. [PMID: 30012342 DOI: 10.1016/j.exger.2018.07.007] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 07/06/2018] [Accepted: 07/09/2018] [Indexed: 01/04/2023]
Abstract
Osteoarthritis (OA) is a degenerative chronic disease affecting >300,000 million people around the world as of 2016. Symptomatic measures exist, but there are hardly any curative treatments available. Disruption of the cartilage homeostasis in favor of catabolism leads to cartilage destruction. ROS-macromolecular-induced damage is significantly greater in OA cartilage and OA is described as low-grade chronic systemic inflammation. This review aimed to assess the critical role of cartilage ageing and oxidative stress in the OA process, focusing in particular on NADPH oxidase and especially Nox4 involvement. With age, hypertrophic senescent cells with an altered redox cell profile accumulated. Chondrocytes are more sensitive to oxidant-mediators and the serum level of pro-inflammatory mediators increases. Age-related advanced glycation end products impact on extra cellular matrix (ECM) properties leading to the apoptosis of chondrocytes. A focus on NADPH oxidase-mediated-ROS signaling highlighted the very specific Nox4 isoform, which plays a role on the final common pathway targeting chondrocyte cells. IL-1β-mediated Nox4 stimulation induced an increase in the levels released by the chondrocyte of MMP-1 and MMP-13 proteins, which are involved in ECM degradation. In comparison with the other Nox isoforms, Nox4 remains unusual, since it is constitutively active, does not depend on cytosolic activator proteins and seems to generate H2O2 thanks to the specific conformation of the Nox4 E-loop. Nox4-induced ROS production appears an essential actor in the OA process and it could be relevant to focus on this target in the aim of discovering and developing new therapeutic strategies.
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Affiliation(s)
- S Drevet
- Grenoble Alpes University Hospital, Orthogeriatric Unit, Geriatric Department, Grenoble Alpes University, GREPI UGA-EFS EA7408, Boulevard de la Chantourne, 38043 Grenoble Cedex 1, France.
| | - G Gavazzi
- Grenoble Alpes University Hospital, Acute Geriatric Medicine Unit, Geriatric Department, Grenoble Alpes University, GREPI UGA-EFS EA7408, Boulevard de la Chantourne, 38043 Grenoble Cedex 1, France.
| | - L Grange
- Grenoble Alpes University Hospital, Rheumatology Department, Hopital Sud, GREPI UGA-EFS EA7408, 19 avenue de Kimberley, 38130 Echirolles, France.
| | - C Dupuy
- Institut Gustave Roussy, UMR 8200 CNRS "Stabilité génétique et Oncogenèse", 114 rue Edouard Vaillant, 94805 Villejuif Cedex, France.
| | - B Lardy
- Grenoble Alpes University Hospital, Biology Department, Grenoble Alpes University, GREPI UGA-EFS EA7408, Boulevard de la Chantourne, 38043 Grenoble Cedex 1, France.
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Abstract
This review summarizes a short list of currently discussed trauma-induced danger-associated molecular patterns (DAMP). Due to the bivalent character and often pleiotropic effects of a DAMP, it is difficult to describe its "friend or foe" role in post-traumatic inflammation and regeneration, both systemically as well locally in tissues. DAMP can be used as biomarkers to indicate or monitor disease or injury severity, but also may serve as clinically applicable parameters for better indication and timing of surgery. Due to the inflammatory processes at the local tissue level or the systemic level, the precise role of DAMP is not always clear to define. While in vitro and experimental studies allow for the detection of these biomarkers at the different levels of an organism-cellular, tissue, circulation-this is not always easily transferable to the human setting. Increased knowledge exploring the dual role of DAMP after trauma, and concentrating on their nuclear functions, transcriptional targets, release mechanisms, cellular sources, multiple functions, their interactions and potential therapeutic targeting is warranted.
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Affiliation(s)
- Borna Relja
- Department of Trauma, Hand and Reconstructive Surgery, University Hospital Frankfurt, Goethe University, 60590, Frankfurt, Germany.
| | - Katharina Mörs
- Department of Trauma, Hand and Reconstructive Surgery, University Hospital Frankfurt, Goethe University, 60590, Frankfurt, Germany
| | - Ingo Marzi
- Department of Trauma, Hand and Reconstructive Surgery, University Hospital Frankfurt, Goethe University, 60590, Frankfurt, Germany
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Al-Khazraji BK, Appleton CT, Beier F, Birmingham TB, Shoemaker JK. Osteoarthritis, cerebrovascular dysfunction and the common denominator of inflammation: a narrative review. Osteoarthritis Cartilage 2018; 26:462-470. [PMID: 29406252 DOI: 10.1016/j.joca.2018.01.011] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 01/10/2018] [Accepted: 01/13/2018] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Population-based cohort studies suggest an association between osteoarthritis (OA) and cerebrovascular disease, yet the mechanisms underlying vascular comorbidities in OA remain unclear. The purpose of this narrative review is to discuss the literature examining inflammation in OA with a focus on physiological mechanisms, and whether overlapping mechanisms exist in cerebrovascular dysfunction. METHOD A literature search was conducted in PubMed using combinations of search terms: osteoarthritis, cerebrovascular (disease/dysfunction/risk), cardiovascular (disease/dysfunction/risk), aging/ageing, inflammation, inflammatory mediators, cytokine, c-reactive protein, interleukin, advanced glycation end-products, metabolic syndrome, reactive oxidative species, cognitive impairment, (vascular-related) dementia, small cerebral vessel disease, endothelial function, blood-brain barrier, gender/sex, hypertension, peripheral vascular health, and physical activity. Reference lists of identified articles were also researched manually. RESULTS Overlapping inflammatory factors that may contribute to onset and progression of both OA and cerebrovascular dysfunction are presented. We describe oxidative mechanisms involving pro-inflammatory cytokines and oxidative species, advanced glycation end-products, sex hormones, microvascular dysfunction and osteoprotegerin, and their specific roles in potentially contributing to OA and cerebrovascular dysfunction. CONCLUSION Synthesis of the current literature suggests future investigations may benefit from directly testing cerebrovascular hemodynamics and cognitive function in individuals with or at risk of OA to elucidate common physiological mechanisms.
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Affiliation(s)
- B K Al-Khazraji
- School of Kinesiology, Faculty of Health Sciences, Western University, Canada; Bone and Joint Institute, Western University, Canada
| | - C T Appleton
- Department of Medicine, Schulich School of Medicine and Dentistry, Canada; Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Canada; Bone and Joint Institute, Western University, Canada
| | - F Beier
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Canada; Bone and Joint Institute, Western University, Canada
| | - T B Birmingham
- School of Physical Therapy, Faculty of Health Sciences, Western University, Canada; Bone and Joint Institute, Western University, Canada
| | - J K Shoemaker
- School of Kinesiology, Faculty of Health Sciences, Western University, Canada; Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Canada; Bone and Joint Institute, Western University, Canada.
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Wang ZJ, Zhang HB, Chen C, Huang H, Liang JX. Effect of PPARG on AGEs-induced AKT/MTOR signaling-associated human chondrocytes autophagy. Cell Biol Int 2018; 42:841-848. [PMID: 29453775 DOI: 10.1002/cbin.10951] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 02/11/2018] [Indexed: 12/21/2022]
Abstract
Accumulation of advanced glycation end products (AGEs) in articular cartilage is thought to represent a major risk factor for osteoarthritis development. In this study we aimed to probe the role of AGEs in human chondrocytes and to determine the impact of the peroxisome proliferator-activated receptor-γ (PPARG) on AGEs-induced cell autophagy. Cell viability was measured after human chondrocytes were treated with different concentrations of AGEs with or without the PPARG inhibitor, T0070907, or agonist, pioglitazone. Autophagy activation markers (MAP2LC3, BECN1 and SQSTM1/P62), expression of PPARG and the phosphorylation levels of Akt/MTOR were determined by Western blotting; autophagosome formation was analyzed by transmission electron microscopy (TEM); autophagic flux was detected with mRFP-GFP-LC3 tandem construct. Low doses of AGEs over a short amount of time stimulated chondrocyte proliferation and autophagy by limiting phosphorylation of Akt/MTOR signaling. The addition of PPARG inhibitor T0070907 lead to defective autophagy. High dose and long exposure to AGEs inhibited cell viability and autophagy by increasing phosphorylation levels of Akt/MTOR signaling. The agonist, pioglitazone, was shown to protect cell autophagy in a dose-dependent manner. Our findings suggest AGEs can downregulate PPARG and that PPARG maintains cell viability by activating the Akt/MTOR signaling pathway as well as inducing chondrocyte autophagy.
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Affiliation(s)
- Zhao-Jun Wang
- Department of Orthopedics, The Second Affiliated Hospital of Hunan Normal University, The 163rd Central Hospital of the People's Liberation Army, Changsha, Hunan, 410003, People's Republic of China
| | - Hai-Bin Zhang
- Department of Orthopedics, The Second Affiliated Hospital of Hunan Normal University, The 163rd Central Hospital of the People's Liberation Army, Changsha, Hunan, 410003, People's Republic of China
| | - Cheng Chen
- Department of Orthopedics, The Second Affiliated Hospital of Hunan Normal University, The 163rd Central Hospital of the People's Liberation Army, Changsha, Hunan, 410003, People's Republic of China
| | - Hao Huang
- Department of Orthopedics, The Second Affiliated Hospital of Hunan Normal University, The 163rd Central Hospital of the People's Liberation Army, Changsha, Hunan, 410003, People's Republic of China
| | - Jian-Xia Liang
- Department of Orthopedics, The Second Affiliated Hospital of Hunan Normal University, The 163rd Central Hospital of the People's Liberation Army, Changsha, Hunan, 410003, People's Republic of China
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Leonidou A, Lepetsos P, Mintzas M, Kenanidis E, Macheras G, Tzetis M, Potoupnis M, Tsiridis E. Inducible nitric oxide synthase as a target for osteoarthritis treatment. Expert Opin Ther Targets 2018; 22:299-318. [PMID: 29504411 DOI: 10.1080/14728222.2018.1448062] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
INTRODUCTION Inducible nitric oxide synthase (iNOS) is the enzyme responsible for the production of nitric oxide (NO), a major proinflammatory and destructive mediator in osteoarthritis (OA). Areas covered: This is a comprehensive review of the recent literature on the involvement of iNOS in osteoarthritis and its potential to be used as a target for OA treatment. Evidence from in vitro, in vivo and human studies was systematically collected using medical search engines. Preclinical studies have focused on the effect of direct and indirect iNOS inhibitors in both animal and human tissues. Apart from direct inhibitors, common pharmacological agents, herbal and dietary medicines as well as hyperbaric oxygen, low level laser and low intensity pulsed ultrasound have been shown to exhibit a chondroprotective effect by inhibiting the expression of iNOS. Expert opinion: Data support the further investigation of iNOS inhibitors for the treatment of OA in human studies and clinical trials. Indirect iNOS inhibitors such as interleukin 1 inhibitors also need to be studied in greater detail. Finally, human studies need to be conducted on the herbal and dietary medicines and on the non-invasive, non-pharmacological treatments.
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Affiliation(s)
- Andreas Leonidou
- a Academic Department of Orthopaedics and Trauma, Division of Surgery , Aristotle University Medical School , Thessaloniki , Greece.,b Department of Medical Genetics , National and Kapodistrian University of Athens, Medical School , Athens , Greece
| | - Panagiotis Lepetsos
- a Academic Department of Orthopaedics and Trauma, Division of Surgery , Aristotle University Medical School , Thessaloniki , Greece.,c 4th Department of Trauma and Orthopaedics , KAT Hospital , Athens , Greece
| | - Michalis Mintzas
- a Academic Department of Orthopaedics and Trauma, Division of Surgery , Aristotle University Medical School , Thessaloniki , Greece
| | - Eustathios Kenanidis
- a Academic Department of Orthopaedics and Trauma, Division of Surgery , Aristotle University Medical School , Thessaloniki , Greece
| | - George Macheras
- c 4th Department of Trauma and Orthopaedics , KAT Hospital , Athens , Greece
| | - Maria Tzetis
- b Department of Medical Genetics , National and Kapodistrian University of Athens, Medical School , Athens , Greece
| | - Michael Potoupnis
- c 4th Department of Trauma and Orthopaedics , KAT Hospital , Athens , Greece
| | - Eleftherios Tsiridis
- a Academic Department of Orthopaedics and Trauma, Division of Surgery , Aristotle University Medical School , Thessaloniki , Greece.,d Department of Surgery and Cancer, Division of Surgery , Imperial College London , London , UK
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Zhang HB, Zhang Y, Chen C, Li YQ, Ma C, Wang ZJ. Pioglitazone inhibits advanced glycation end product-induced matrix metalloproteinases and apoptosis by suppressing the activation of MAPK and NF-κB. Apoptosis 2018; 21:1082-93. [PMID: 27515513 DOI: 10.1007/s10495-016-1280-z] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Apoptosis and degeneration coming mainly from chondrocytes are important mechanisms in the onset and progression of osteoarthritis. Specifically, advanced glycation end products (AGEs) play an important role in the pathogenesis of osteoarthritis. Pioglitazone, a peroxisome proliferator-activated receptor γ (PPARγ) agonist has a protective effect on cartilage. This study aims to evaluate the effect of pioglitazone on AGEs-induced chondrocyte apoptosis and degeneration and their underlying mechanism. The in vitro study shows that AGEs induce cleavage of caspase-3 and PARP, up-regulate MMP-13 expression, enhance chondrocyte apoptosis and down-regulate PPARγ expression in human primary chondrocytes, which is reversed by pioglitazone. Furthermore, AGEs activate phosphorylation of Erk, JNK, and p38, and pioglitazone reverses AGEs-induced phosphorylation of Erk and p38. AGEs-induced degradation of IκBα and translocation of nuclear NF-κB p65 is reversed by pioglitazone. Pretreatment of chondrocytes with SB202190 (p38 inhibitor), SP600125 (JNK inhibitor) and BAY-11-7082 (NF-κB inhibitor) inhibit AGEs-induced apoptosis and degeneration. In vivo experiments suggest that pioglitazone reverses AGEs-induced cartilage degeneration and apoptosis in a mouse model, as demonstrated by HE and Safranin O staining, immunohistochemical analyses of Type II collagen (Col II), metalloproteinases (MMPs) and caspase-3. These findings suggest that pioglitazone, a PPARγ agonist, inhibits AGEs-induced chondrocytes apoptosis and degeneration via suppressing the activation of MAPK and NF-κB.
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Affiliation(s)
- Hai-Bin Zhang
- Department of Orthopedics, The 163rd Central Hospital of the People's Liberation Army, The Second Affiliated Hospital of Hunan Normal University, Changsha, 410003, Hunan, People's Republic of China
| | - Ying Zhang
- Department of Orthopedics, The 163rd Central Hospital of the People's Liberation Army, The Second Affiliated Hospital of Hunan Normal University, Changsha, 410003, Hunan, People's Republic of China
| | - Cheng Chen
- Department of Orthopedics, The 163rd Central Hospital of the People's Liberation Army, The Second Affiliated Hospital of Hunan Normal University, Changsha, 410003, Hunan, People's Republic of China.
| | - Yu-Qing Li
- Department of Orthopedics, The 163rd Central Hospital of the People's Liberation Army, The Second Affiliated Hospital of Hunan Normal University, Changsha, 410003, Hunan, People's Republic of China
| | - Chi Ma
- Department of Orthopedics, People's Hospital of Xiangxi Autonomous Prefecture, Jishou, Hunan, China
| | - Zhao-Jun Wang
- Department of Orthopedics, The 163rd Central Hospital of the People's Liberation Army, The Second Affiliated Hospital of Hunan Normal University, Changsha, 410003, Hunan, People's Republic of China
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Ye W, Zhong Z, Zhu S, Zheng S, Xiao J, Song S, Yu H, Wu Q, Lin Z, Chen J. Advanced oxidation protein products induce chondrocyte death through a redox-dependent, poly (ADP-ribose) polymerase-1-mediated pathway. Apoptosis 2018; 22:86-97. [PMID: 27858200 DOI: 10.1007/s10495-016-1314-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This study aimed to investigate the effect of AOPPs on apoptosis in human chondrocytes. Chondrocytes were treated with AOPPs. Cell death, nicotinamide adenine dinucleotide phosphate (NADPH) oxidase activity, reactive oxygen species (ROS) generation, and the expression of apoptotic proteins were detected in vitro. AOPPs levels were detected by colorimetric method. The results in vitro demonstrated that AOPPs induced cell death in human chondrocyte through a redox-dependent pathway, including RAGE-mediated, NADPH oxidase-dependent ROS generation, and poly (ADP-ribose) polymerase-1 (PARP-1) activation. Targeting AOPPs-induced cellular mechanisms might emerge as a promising therapeutic option for patients with RA.
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Affiliation(s)
- Wenbin Ye
- Department of Orthopaedics, The 175th Hospital of PLA, Affiliated Dongnan Hospital of Xiamen University, Zhangzhou, Fujian, China
| | - Zhaoming Zhong
- Department of Orthopaedic Spinal Surgery, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, China
| | - Siyuan Zhu
- Department of Orthopaedic Spinal Surgery, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, China
| | - Shuai Zheng
- Department of Orthopaedic Spinal Surgery, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, China
| | - Jun Xiao
- Department of Orthopedic Joint Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Shaolian Song
- Department of Pharmacy, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Hui Yu
- Department of Orthopaedic Spinal Surgery, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, China
| | - Qian Wu
- Department of Orthopaedic Spinal Surgery, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, China
| | - Zhen Lin
- Department of Orthopaedic Spinal Surgery, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, China
| | - Jianting Chen
- Department of Orthopaedic Spinal Surgery, Nanfang Hospital, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515, China.
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Liu J, Tang LY, Wang YG, Lu SY, Zhang EN, Wang ZG, Zhang HX. Identification of MAVS as a Novel Risk Factor for the Development of Osteoarthritis. Aging Dis 2018; 9:40-50. [PMID: 29392080 PMCID: PMC5772857 DOI: 10.14336/ad.2017.0308] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 03/08/2017] [Indexed: 11/03/2022] Open
Abstract
Evidence indicated that inflammatory response and some pattern-recognition receptors play important roles in the occurrence and progression of osteoarthritis. This study is conducted to evaluate the role of RIG-I and its adaptor protein MAVS in the pathogenesis of osteoarthritis. Four SNPs in RIG-I gene and four in MAVS gene were genotyped in 1056 Chinese Han population. We also overexpressed MAVS in murine chondrogenic ATDC5 cells and analyzed the cell viability and apoptosis. Rs11795343 (P-allele: 0.063394) in RIG-I, rs17857295 (P-allele: 0.073518) and rs7262903 (P-allele: 0.054052, P-genotype: 0.067930) in MAVS were marginally associated with OA. Rs7269320 (P-allele: 0.014783, P-genotype: 0.03272) in MAVS was significant associated with OA. Further analyses in different genders indicated that rs7262903 (P-allele: 0.017256, P-genotype: 0.045683) and rs7269320 (P-allele: 0.013073, P-genotype: 0.038881) are significantly associated with OA in female group. Haplotype analyses indicated G-C-G (χ2: 4.328, P-value: 0.037503) in rs10813821-rs11795343-rs659527 block of RIG-I, G-C-A-T (χ2: 4.056, P-value: 0.044028) and G-C-C-C (χ2: 14.295, P-value: 0.000158) in rs17857295-rs2326369-rs7262903-rs7269320 block of MAVS were significantly associated with OA. Furthermore, forced expression of MAVS could suppress the viability and promote the apoptosis of ATDC5 chondrogenic cells. In conclusion, this study indicated that RIG-I and MAVS are probably associated with OA in the females of Chinese Han population. And MAVS might be a novel risk factor for OA which may involve in growth of chondrocytes and cartilage homeostasis.
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Affiliation(s)
- Jie Liu
- 1Shanghai Institute of Orthopaedics and Traumatology, Shanghai Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Ling-Yun Tang
- 2State Key Laboratory of Medical Genomics, Research center for experimental medicine, Shanghai Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Yan-Gui Wang
- 3Department of Clinical Laboratory, Yantaishan Hospital, Yantai, Shandong, 264008, China
| | - Shun-Yuan Lu
- 2State Key Laboratory of Medical Genomics, Research center for experimental medicine, Shanghai Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - En-Ning Zhang
- 4Department of Medical Oncology, Yantaishan Hospital, Yantai, 264000, China
| | - Zhu-Gang Wang
- 2State Key Laboratory of Medical Genomics, Research center for experimental medicine, Shanghai Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Hong-Xin Zhang
- 2State Key Laboratory of Medical Genomics, Research center for experimental medicine, Shanghai Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
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Matsuzaki T, Akasaki Y, Olmer M, Alvarez‐Garcia O, Reixach N, Buxbaum JN, Lotz MK. Transthyretin deposition promotes progression of osteoarthritis. Aging Cell 2017; 16:1313-1322. [PMID: 28941045 PMCID: PMC5676063 DOI: 10.1111/acel.12665] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/04/2017] [Indexed: 01/01/2023] Open
Abstract
Deposition of amyloid is a common aging-associated phenomenon in several aging-related diseases. Osteoarthritis (OA) is the most prevalent joint disease, and aging is its major risk factor. Transthyretin (TTR) is an amyloidogenic protein that is deposited in aging and OA-affected human cartilage and promotes inflammatory and catabolic responses in cultured chondrocytes. Here, we investigated the role of TTR in vivo using transgenic mice overexpressing wild-type human TTR (hTTR-TG). Although TTR protein was detected in cartilage in hTTR-TG mice, the TTR transgene was highly overexpressed in liver, but not in chondrocytes. OA was surgically induced by destabilizing the medial meniscus (DMM) in hTTR-TG mice, wild-type mice of the same strain (WT), and mice lacking endogenous Ttr genes. In the DMM model, both cartilage and synovitis histological scores were significantly increased in hTTR-TG mice. Further, spontaneous degradation and OA-like changes in cartilage and synovium developed in 18-month-old hTTR mice. Expression of cartilage catabolic (Adamts4, Mmp13) and inflammatory genes (Nos2, Il6) was significantly elevated in cartilage from 6-month-old hTTR-TG mice compared with WT mice as was the level of phospho-NF-κB p65. Intra-articular injection of aggregated TTR in WT mice increased synovitis and significantly increased expression of inflammatory genes in synovium. These findings are the first to show that TTR deposition increases disease severity in the murine DMM and aging model of OA.
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Affiliation(s)
- Tokio Matsuzaki
- Department of Molecular MedicineThe Scripps Research InstituteLa JollaCAUSA
| | - Yukio Akasaki
- Department of Molecular MedicineThe Scripps Research InstituteLa JollaCAUSA
| | - Merissa Olmer
- Department of Molecular MedicineThe Scripps Research InstituteLa JollaCAUSA
| | | | - Natalia Reixach
- Department of Molecular MedicineThe Scripps Research InstituteLa JollaCAUSA
| | - Joel N. Buxbaum
- Department of Molecular MedicineThe Scripps Research InstituteLa JollaCAUSA
| | - Martin K. Lotz
- Department of Molecular MedicineThe Scripps Research InstituteLa JollaCAUSA
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