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Port H, Nielsen SH, Madsen SF, Bay-Jensen AC, Karsdal M, Seven S, Sørensen IJ, Morsel-Carlsen L, Østergaard M, Pedersen SJ. Extracellular matrix protein turnover markers are associated with axial spondyloarthritis-a comparison with postpartum women and other non-axial spondyloarthritis controls with or without back pain. Arthritis Res Ther 2022; 24:152. [PMID: 35739562 PMCID: PMC9219155 DOI: 10.1186/s13075-022-02839-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 06/15/2022] [Indexed: 11/17/2022] Open
Abstract
Background Axial spondyloarthritis (axSpA) is a common chronic inflammatory disease, associated with extracellular matrix (ECM) remodeling of the cartilage, bone, and connective tissues. The primary symptom of axSpA is back pain, caused by inflammation. However, there is a medical need to truly identify patients with axSpA from other subjects with buttock or low back pain attributable to other reasons. We aimed to investigate circulating biomarkers of ECM/inflammation (MMP-degraded type I (C1M), II (C2M, T2CM), III (C3M), IV (C4M), VI (C6M), and X (C10C, COL10NC) collagens, CRPM, PROM and VICM) and ECM formation of type II (PRO-C2), III (PRO-C3), IV (PRO-C4), and VI (PRO-C6) collagens as potential biomarkers to identify patients with axSpA. Methods We measured biomarkers from a cross-sectional study with 204 participants by enzyme-linked immunosorbent assay (ELISA). The study included axSpA patients (N = 41), women with postpartum buttock/pelvic pain (N = 46), disc herniation (N = 25), and a group of healthy subjects (including women without postpartum pelvic pain (N = 14), subjects with various types of physical strain (cleaning staff (N = 26) long-distance runners (N = 23)), and healthy men (N = 29)). Differences between the groups were calculated by ANCOVA and AUC, while Spearman’s correlations were performed with ECM biomarkers and clinical scores. Results Patients with axSpA expressed significantly higher levels of C1M, C4M, and VICM (p < 0.05-p < 0.0001) compared to all the non-axSpA control groups. Further, C6M and PRO-C4 were significantly higher in patients with axSpA (both p < 0.0001) compared to women with postpartum pelvic pain and healthy subjects, whereas PRO-C3 was significantly lower compared to healthy subjects (p = 0.01). The best ECM common biomarker to differentiate between axSpA and the non-axSpA control groups was PRO-C4 (AUC ≥ 0.75; specificity ≥ 0.79, sensitivity = 0.65). Mild correlations were observed between collagen turnover and inflammation biomarkers and CRP and MRI (ρ ≥ 0.3; p < 0.05-p < 0.001). Conclusions Biomarkers of type I, IV, and VI collagen and biomarkers of inflammation showed an altered turnover in patients with axSpA compared with the non-axSpA control groups. Such biomarkers may be useful in combination with MRI or independently to separate patients with axSpA from other back pain conditions. Supplementary Information The online version contains supplementary material available at 10.1186/s13075-022-02839-1.
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Affiliation(s)
- Helena Port
- Nordic Bioscience A/S, Immunoscience, Herlev hovedgade 207, 2730, Herlev, Denmark. .,University of Copenhagen, Clinical Medicine, Copenhagen, Denmark.
| | - Signe Holm Nielsen
- Nordic Bioscience A/S, Immunoscience, Herlev hovedgade 207, 2730, Herlev, Denmark.,Technical University of Denmark, Biomedicine and Biotechnology, Kgs. Lyngby, Denmark
| | | | | | - Morten Karsdal
- Nordic Bioscience A/S, Immunoscience, Herlev hovedgade 207, 2730, Herlev, Denmark
| | - Sengül Seven
- Rigshospitalet, Center for Arthritis Research, Glostrup, Denmark
| | - Inge Juul Sørensen
- University of Copenhagen, Clinical Medicine, Copenhagen, Denmark.,Rigshospitalet, Center for Arthritis Research, Glostrup, Denmark
| | | | - Mikkel Østergaard
- University of Copenhagen, Clinical Medicine, Copenhagen, Denmark.,Rigshospitalet, Center for Arthritis Research, Glostrup, Denmark
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Holm Nielsen S, Sun S, Bay-Jensen AC, Karsdal M, Sørensen IJ, Weber U, Loft AG, Kollerup G, Thamsborg G, Madsen OR, Møller J, Østergaard M, Pedersen SJ. Levels of extracellular matrix metabolites are associated with changes in Ankylosing Spondylitis Disease Activity Score and MRI inflammation scores in patients with axial spondyloarthritis during TNF inhibitor therapy. Arthritis Res Ther 2022; 24:279. [PMID: 36564778 PMCID: PMC9783808 DOI: 10.1186/s13075-022-02967-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 12/02/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND/PURPOSE In axial spondyloarthritis (axSpA) inflammation of the sacroiliac joints and spine is associated with local extracellular matrix (ECM) remodeling of affected tissues. We aimed to investigate the association of ECM metabolites with treatment response in axSpA patients treated with TNF-α inhibitory therapy for 46 weeks. METHODS In a prospective clinical study of axSpA patients (n=55) initiating a TNF inhibitor (infliximab, etanercept, or adalimumab), serum concentrations of formation of type I (PRO-C1), type III (PRO-C3), and type VI (PRO-C6) collagen; turnover of type IV collagen (PRO-C4), and matrix-metalloproteinase (MMP)-degraded type III (C3M) collagen, MMP-degraded type IV (C4M), type VI (C6M), and type VII (C7M) collagen, and cathepsin-degraded type X collagen (C10C), MMP-mediated metabolite of C-reactive protein (CRPM), citrullinated vimentin (VICM), and neutrophil elastase-degraded elastin (EL-NE) were measured at baseline, week 2, week 22, and week 46. RESULTS Patients were mostly males (82%), HLA-B27 positive (84%), with a median age of 40 years (IQR: 32-48), disease duration of 5.5 years (IQR: 2-10), and a baseline Ankylosing Spondylitis Disease Activity Score (ASDAS) of 3.9 (IQR: 3.0-4.5). Compared to baseline, PRO-C1 levels were significantly increased after two weeks of treatment, C6M levels were significantly decreased after two and 22 weeks (repeated measures ANOVA, p=0.0014 and p=0.0015, respectively), EL-NE levels were significantly decreased after 2 weeks (p=0.0008), VICM levels were significantly decreased after two and 22 weeks (p=0.0163 and p=0.0374, respectively), and CRP were significantly decreased after two and 22 weeks (both p=0.0001). Baseline levels of PRO-C1, PRO-C3, C6M, VICM, and CRP were all associated with ASDAS clinically important and major improvement after 22 weeks (ΔASDAS ≥1.1) (Mann-Whitney test, p=0.006, p=0.008, p<0.001, <0.001, <0.001, respectively), while C6M, VICM and CRP levels were associated with ASDAS clinically important and major improvement after 46 weeks (ΔASDAS ≥2.0) (p=0.002, p=0.044, and p<0.001, respectively). PRO-C1 and C6M levels were associated with a Bath AS Disease Activity Score (BASDAI) response to TNF-inhibitory therapy after 22 weeks (Mann-Whitney test, p=0.020 and p=0.049, respectively). Baseline levels of PRO-C4 and C6M were correlated with the total SPARCC MRI Spine and Sacroiliac Joint Inflammation score (Spearman's Rho ρ=0.279, p=0.043 and ρ=0.496, p=0.0002, respectively). CONCLUSIONS Extracellular matrix metabolites were associated with ASDAS response, MRI inflammation, and clinical treatment response during TNF-inhibitory treatment in patients with axSpA.
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Affiliation(s)
- Signe Holm Nielsen
- grid.436559.80000 0004 0410 881XNordic Bioscience, Herlev, Denmark ,grid.5170.30000 0001 2181 8870Biotechnology and Biomedicine, Technical University of Denmark, Lyngby, Denmark
| | - Shu Sun
- grid.436559.80000 0004 0410 881XNordic Bioscience, Herlev, Denmark
| | | | - Morten Karsdal
- grid.436559.80000 0004 0410 881XNordic Bioscience, Herlev, Denmark
| | - Inge Juul Sørensen
- grid.475435.4Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Rigshospitalet, Glostrup, Denmark ,grid.5254.60000 0001 0674 042XDepartment of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Ulrich Weber
- grid.7143.10000 0004 0512 5013Danish Hospital for Rheumatic Diseases, University Hospital of Southern Denmark, Sønderborg, Denmark ,Practice Buchsbaum, Rheumatology, Schaffhausen, Switzerland
| | - Anne Gitte Loft
- grid.459623.f0000 0004 0587 0347Departments of Rheumatology, Hospital Lillebælt, Vejle, Denmark ,grid.154185.c0000 0004 0512 597XAarhus University Hospital, Aarhus, Denmark
| | - Gina Kollerup
- grid.475435.4Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Rigshospitalet, Glostrup, Denmark ,grid.5254.60000 0001 0674 042XDepartment of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Gorm Thamsborg
- grid.475435.4Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Rigshospitalet, Glostrup, Denmark ,grid.5254.60000 0001 0674 042XDepartment of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Ole Rintek Madsen
- grid.475435.4Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Rigshospitalet, Glostrup, Denmark ,grid.5254.60000 0001 0674 042XDepartment of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Jakob Møller
- grid.411900.d0000 0004 0646 8325Department of Radiology, Herlev Hospital, Copenhagen, Denmark
| | - Mikkel Østergaard
- grid.475435.4Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Rigshospitalet, Glostrup, Denmark ,grid.5254.60000 0001 0674 042XDepartment of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Susanne Juhl Pedersen
- grid.475435.4Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Rigshospitalet, Glostrup, Denmark ,grid.5254.60000 0001 0674 042XDepartment of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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