1
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Fowkes MM, Troeberg L, Brennan PE, Vincent TL, Meldal M, Lim NH. Development of Selective ADAMTS-5 Peptide Substrates to Monitor Proteinase Activity. J Med Chem 2023; 66:3522-3539. [PMID: 36891740 PMCID: PMC10009750 DOI: 10.1021/acs.jmedchem.2c02090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Indexed: 02/25/2023]
Abstract
The dysregulation of proteinase activity is a hallmark of osteoarthritis (OA), a disease characterized by progressive degradation of articular cartilage by catabolic proteinases such as a disintegrin and metalloproteinase with thrombospondin type I motifs-5 (ADAMTS-5). The ability to detect such activity sensitively would aid disease diagnosis and the evaluation of targeted therapies. Förster resonance energy transfer (FRET) peptide substrates can detect and monitor disease-related proteinase activity. To date, FRET probes for detecting ADAMTS-5 activity are nonselective and relatively insensitive. We describe the development of rapidly cleaved and highly selective ADAMTS-5 FRET peptide substrates through in silico docking and combinatorial chemistry. The lead substrates 3 and 26 showed higher overall cleavage rates (∼3-4-fold) and catalytic efficiencies (∼1.5-2-fold) compared to the best current ADAMTS-5 substrate ortho-aminobenzoyl(Abz)-TESE↓SRGAIY-N-3-[2,4-dinitrophenyl]-l-2,3-diaminopropionyl(Dpa)-KK-NH2. They exhibited high selectivity for ADAMTS-5 over ADAMTS-4 (∼13-16-fold), MMP-2 (∼8-10-fold), and MMP-9 (∼548-2561-fold) and detected low nanomolar concentrations of ADAMTS-5.
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Affiliation(s)
- Milan M. Fowkes
- Centre
for OA Pathogenesis Versus Arthritis, Kennedy Institute of Rheumatology, University of Oxford, Roosevelt Drive, Headington, Oxford OX3 7FY, United Kingdom
| | - Linda Troeberg
- Norwich
Medical School, Bob Champion Research and Education Building, Rosalind
Franklin Road, University of East Anglia, Norwich NR4 7UQ, United Kingdom
| | - Paul E. Brennan
- Alzheimer’s
Research UK Oxford Drug Discovery Institute, Centre for Medicines
Discovery, Nuffield Department of Medicine Research Building, University of Oxford, Old Road Campus, Headington, Oxford OX3 7FZ, United Kingdom
| | - Tonia L. Vincent
- Centre
for OA Pathogenesis Versus Arthritis, Kennedy Institute of Rheumatology, University of Oxford, Roosevelt Drive, Headington, Oxford OX3 7FY, United Kingdom
| | - Morten Meldal
- Department
of Chemistry, University of Copenhagen, Universitetsparken 5, Building B304, Copenhagen DK-2100, Denmark
| | - Ngee H. Lim
- Centre
for OA Pathogenesis Versus Arthritis, Kennedy Institute of Rheumatology, University of Oxford, Roosevelt Drive, Headington, Oxford OX3 7FY, United Kingdom
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2
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He X, Chen H, Chang S, Zhu S. Multifunctional Nanoparticles Co-Loaded with Perfluoropropane, Indocyanine Green, and Methotrexate for Enhanced Multimodal Imaging of Collagen-Induced Arthritis. Mol Pharm 2022; 19:2418-2428. [PMID: 35484086 DOI: 10.1021/acs.molpharmaceut.2c00174] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Rheumatoid arthritis (RA), a common chronic inflammatory joint disease with features of synovitis and pannus formation, may lead to irreparable joint damage and disability. Methotrexate (MTX) is known as the cornerstone of therapy for RA. However, the therapeutic effects of MTX are unsatisfactory due to its low retention in the inflammatory joints as well as systemic toxic effects. Fortunately, the use of multifunctional nanoparticles for diagnostics and in treatment shows potential for application as a strategy for traceable and targeted RA therapy. This research aims to develop novel nanoparticles that carry with perfluoropropane (PFP), indocyanine green (ICG), and MTX and investigate the corresponding enhancement in multimodal imaging both in vitro and in vivo. A modified double emulsion method was applied for the construction of encapsulated PFP-O2, ICG, and MTX (OIM@NPs), and the essential properties of the developed NPs were determined. The fluorescence and ultrasonic and photoacoustic imaging characteristics were experimentally evaluated both in in vitro and in vivo models. The OIM@NPs are stable and efficient nanoagents. They enable more targeted distribution in the inflammatory joints in RA rats. Moreover, the NPs play an important role as contrast agents for prominent ultrasound and photoacoustic imaging after laser and low-intensity focused ultrasound excitation, providing precision guidance and monitoring for subsequent treatment. This research may provide a novel and efficient strategy to better enable monitoring in inflammatory joints of RA patients and the developed NPs may be a promising nanoplatform for integrating multimodal image monitoring.
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Affiliation(s)
- Xinyu He
- Department of Pharmacy, First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.,Chongqing Key Laboratory of Ultrasound Molecular Imaging, Chongqing 400016, China.,State Key Laboratory of Ultrasound in Medicine and Engineering, Chongqing Medical University, Chongqing 400016, China
| | - Huanhuan Chen
- Department of Pharmacy, First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Shufang Chang
- Department of Obstetrics and Gynecology, Second Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Shenyin Zhu
- Department of Pharmacy, First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
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Danielsen MA, Glinatsi D, Terslev L, Østergaard M. A Novel Fluorescence Optical Imaging Scoring System for Hand Synovitis in Rheumatoid Arthritis - validity and agreement with ultrasound. Rheumatology (Oxford) 2021; 61:636-647. [PMID: 33890623 DOI: 10.1093/rheumatology/keab377] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 04/15/2021] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES To develop and validate a new semiquantitative Fluorescence Optical Imaging (FOI) scoring system - the FOI Enhancement-Generated rheumatoid arthritis (RA) Score (FOIE-GRAS) for synovitis assessment in the hand. METHODS The development of FOIE-GRAS was based on consensus of 4 experts in musculoskeletal imaging. Forty-six RA patients, eligible for treatment intensification and with ≥1 clinically swollen joint in the hands and 11 healthy controls were included. FOI, ultrasound and clinical assessment of both hands were obtained at baseline and for RA patients after 3- and 6-months' follow-up. Twenty RA patients had an FOI rescan after 4 hours. Synovitis was scored using FOIE-GRAS and the OMERACT ultrasound synovitis scoring system. All FOI images were scored by 2 readers. Inter-scan, inter-and intra-reader reliability were determined. Furthermore, FOIE-GRAS agreement with ultrasound and responsiveness was assessed. RESULTS FOIE-GRAS synovitis was defined as early enhancement and scores based on the degree of coverage of the specific joint region after 3 seconds (0-3). Inter-scan, intra- and inter-reader intraclass correlations coefficients (ICC) were good-excellent for all baseline scores (0.76-0.98) and moderate-to-good for change (0.65-76).The FOIE-GRAS had moderate agreement with ultrasound (ICC 0.30-0.54) for total score, a good standardized response mean (>0.80), and moderate correlation with clinical joint assessment and DAS28-CRP. The median (IQR) reading time per FOI examination was 133 (109;161) seconds. Scores were significantly lower in controls 1(0;4) than RA patients 11(6;19). CONCLUSION The FOIE-GRAS offers a feasible and reliable assessment of synovitis in RA, with a moderate correlation with ultrasound and DAS28CRP, and good responsiveness.
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Affiliation(s)
- Mads Ammitzbøll Danielsen
- Center for Rheumatology and Spine Diseases, Rigshospitalet, Denmark.,Copenhagen Center for Arthritis Research, Rigshospitalet, Denmark
| | - Daniel Glinatsi
- Center for Rheumatology and Spine Diseases, Rigshospitalet, Denmark.,Department of Rheumatology, Skaraborg Hospital, Skövde, Sweden
| | - Lene Terslev
- Center for Rheumatology and Spine Diseases, Rigshospitalet, Denmark.,Copenhagen Center for Arthritis Research, Rigshospitalet, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Mikkel Østergaard
- Center for Rheumatology and Spine Diseases, Rigshospitalet, Denmark.,Copenhagen Center for Arthritis Research, Rigshospitalet, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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4
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Manning JE, Lewis JW, Marsh LJ, McGettrick HM. Insights Into Leukocyte Trafficking in Inflammatory Arthritis - Imaging the Joint. Front Cell Dev Biol 2021; 9:635102. [PMID: 33768093 PMCID: PMC7985076 DOI: 10.3389/fcell.2021.635102] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Accepted: 02/11/2021] [Indexed: 01/13/2023] Open
Abstract
The inappropriate accumulation and activation of leukocytes is a shared pathological feature of immune-mediated inflammatory diseases (IMIDs), such as rheumatoid arthritis (RA) and psoriatic arthritis (PsA). Cellular accumulation is therefore an attractive target for therapeutic intervention. However, attempts to modulate leukocyte entry and exit from the joint have proven unsuccessful to date, indicating that gaps in our knowledge remain. Technological advancements are now allowing real-time tracking of leukocyte movement through arthritic joints or in vitro joint constructs. Coupling this technology with improvements in analyzing the cellular composition, location and interactions of leukocytes with neighboring cells has increased our understanding of the temporal dynamics and molecular mechanisms underpinning pathological accumulation of leukocytes in arthritic joints. In this review, we explore our current understanding of the mechanisms leading to inappropriate leukocyte trafficking in inflammatory arthritis, and how these evolve with disease progression. Moreover, we highlight the advances in imaging of human and murine joints, along with multi-cellular ex vivo joint constructs that have led to our current knowledge base.
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Affiliation(s)
| | | | | | - Helen M. McGettrick
- Rheumatology Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, United Kingdom
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5
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Vøls KK, Kjelgaard-Hansen M, Ley CD, Hansen AK, Petersen M. In vivo fluorescence molecular tomography of induced haemarthrosis in haemophilic mice: link between bleeding characteristics and development of bone pathology. BMC Musculoskelet Disord 2020; 21:241. [PMID: 32290832 PMCID: PMC7158129 DOI: 10.1186/s12891-020-03267-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Accepted: 04/03/2020] [Indexed: 12/17/2022] Open
Abstract
Background Haemophilic arthropathy is a chronic and debilitating joint disease caused by recurrent spontaneous joint bleeds in patients with haemophilia. Understanding how characteristics of individual joint bleeds relate to the subsequent development of arthropathy could improve management and prevention of this joint disease. Here, we aimed to explore relations between joint bleed characteristics and development of bone pathology in a mouse model of haemophilic arthropathy by using novel in vivo imaging methodology. Methods We characterised induced knee bleeds in a murine model of haemophilic arthropathy by quantitative in vivo fluorescence molecular tomography (FMT) and by measurements of changes in the diameter of the injured knee. Wild-type mice and non-injured haemophilic mice acted as controls. Development of arthropathy was characterised by post mortem evaluation of bone pathology by micro-CT 14 days after bleed-induction. In an in vitro study, we assessed the effect of blood on the quantification of fluorescent signal with FMT. Results In most injured haemophilic mice, we observed significant loss of trabecular bone, and half of the mice developed pathological bone remodelling. Development of pathological bone remodelling was associated with significantly increased fluorescent signal and diameter of the injured knee just 1 day after induction of the bleed. Further, a correlation between the fluorescent signal 1 day after induction of the bleed and loss of trabecular bone reached borderline significance. In the in vitro study, we found that high concentrations of blood significantly decreased the fluorescent signal. Conclusion Our results add novel insights on the pathogenesis of haemophilic arthropathy and underline the importance of the acute phase of joint bleeds for the subsequent development of arthropathy.
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Affiliation(s)
- K K Vøls
- Global Drug Discovery, Novo Nordisk A/S, Novo Nordisk Park 1, 2760, Maaloev, Denmark. .,Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg, Denmark.
| | - M Kjelgaard-Hansen
- Veterinary Clinical Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - C D Ley
- Global Drug Discovery, Novo Nordisk A/S, Novo Nordisk Park 1, 2760, Maaloev, Denmark
| | - A K Hansen
- Veterinary and Animal Sciences, University of Copenhagen, Frederiksberg, Denmark
| | - M Petersen
- Global Drug Discovery, Novo Nordisk A/S, Novo Nordisk Park 1, 2760, Maaloev, Denmark
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6
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Erdmann-Keding M, Ohrndorf S, Werner SG, Glimm AM, Burmester GR, Kokolakis G, Zuberbier T, Sterry W, Backhaus M, Philipp S. Fluorescence optical imaging for the detection of potential psoriatic arthritis in comparison to musculoskeletal ultrasound. J Dtsch Dermatol Ges 2020; 17:913-921. [PMID: 31538737 DOI: 10.1111/ddg.13931] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 02/25/2019] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Comparison of fluorescence optical imaging (FOI) with grayscale (GS) and power Doppler ultrasound (PDUS) to detect joint inflammation in patients with confirmed or suspected psoriatic arthritis (PsA). METHODS Patients (n = 60) with psoriasis and tenderness and/or swelling of joints were separated into two groups: diagnosis confirmed by the treating dermatologist before the start of the study (n = 26), and suspected PsA (n = 34). GS/PDUS of the hand most clinically affected was performed with a dorsal/palmar view (wrist, MCP, PIP, DIP2-5). FOI examination was carried out in a standardized manner by analyzing the predefined Phases 1-3. RESULTS FOI was found to be more sensitive than ultrasound (US) for detection of inflammation in PIP/DIP joints (p = 0.035). Confirmed PsA patients showed more findings in FOI P2 and P3, while suspected PsA patients showed more findings in P1. In the confirmed PsA group, most involved joints were MCP joints, while in the suspected PsA group, more involved wrist joints and DIP joints (p = 0.006) were detected with FOI. CONCLUSIONS The differences between the confirmed and suspected groups indicate that FOI is helpful in the detection of early PsA since P1 may correspond to acute inflammation, whereas P2 and P3 enhancement reflect chronic inflammation. Fluorescence optical imaging might therefore be a novel diagnostic tool for early PsA diagnosis.
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Affiliation(s)
| | - Sarah Ohrndorf
- Department of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | | | - Anne-Marie Glimm
- Department of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Gerd-Rüdiger Burmester
- Department of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Georgios Kokolakis
- Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Torsten Zuberbier
- Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Wolfram Sterry
- Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Marina Backhaus
- Department of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Department of Internal Medicine, Rheumatology and Clinical Immunology, Park-Klinik Weißensee, Berlin, Germany
| | - Sandra Philipp
- Department of Dermatology and Allergy, Charité - Universitätsmedizin Berlin, Berlin, Germany
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7
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Fowkes MM, Lim NH. Purification and Activity Determination of ADAMTS-4 and ADAMTS-5 and Their Domain Deleted Mutants. Methods Mol Biol 2020; 2043:75-91. [PMID: 31463904 DOI: 10.1007/978-1-4939-9698-8_7] [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: 12/03/2022]
Abstract
A disintegrin-like and metalloproteinase with thrombospondin type-1 motifs-4 (ADAMTS-4) and ADAMTS-5 are zinc-dependent metalloproteinases that are involved in the maintenance of cartilage extracellular matrix (ECM) and are currently considered the major aggrecanases in the development of osteoarthritis. In this chapter we describe the establishment and cultivation of cell lines expressing ADAMTS-4,-5 and their domain deletion mutants; the collection of medium containing expressed ADAMTS-4,-5; the subsequent purification of this medium through anti-FLAG affinity chromatography; and the characterization of ADAMTS-4,-5 activity using synthetic Förster resonance energy transfer (FRET) peptide substrates.
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Affiliation(s)
- Milan M Fowkes
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
| | - Ngee H Lim
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK.
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8
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Glimm AM, Sprenger LI, Haugen IK, Mansmann U, Hermann S, Häupl T, Hoff P, Burmester GR, Backhaus M, Le L, Ohrndorf S. Fluorescence optical imaging for treatment monitoring in patients with early and active rheumatoid arthritis in a 1-year follow-up period. Arthritis Res Ther 2019; 21:209. [PMID: 31533820 PMCID: PMC6749637 DOI: 10.1186/s13075-019-1989-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 09/04/2019] [Indexed: 11/12/2022] Open
Abstract
Background Fluorescence optical imaging (FOI) enables visualization of inflammation in the hands in rheumatic joint diseases with currently a lack of long-term follow-up studies. Objective To investigate FOI for treatment monitoring in a homogenous cohort of patients with early (disease duration < 2 years) and active (DAS28 > 3.2) RA over a period of 12 months. Methods Thirty-five RA patients (24 (68.6%) females, mean age 53.3 years (SD 13.6)) were investigated clinically by DAS28, tender joint count (TJC) and swollen joint count (SJC) and by FOI in phases 1–3 and PrimaVistaMode (PVM) before therapy change and after 12 months. The FOI activity score (FOIAS) was calculated based on individual joint scores from 0 to 3 in 30 joints per patient, adding up to a sum score (0–90). Results We found a statistically significant reduction of FOIAS in phase 1 from baseline (median 5.0, IQR 24.96) to follow-up (median 1.0, IQR 4.0) in all patients (p = 0.0045), both in responders and non-responders according to EULAR response criteria by DAS28. Statistically significant reductions over 12 months were found for median DAS28(ESR) 5.61 to 3.31, TJC 7.0 to 1.0, and SJC 5.0 to 1.0 (each p < 0.001). No statistically significant correlations were detected between the FOIAS change in phase 1 and DAS28(ESR), TJC, or SJC. Correlations between the other phases and clinical outcomes were weak to moderate. Conclusion Reduced early enhancement in FOI phase 1 can be observed in clinically responding and non-responding early RA patients under treatment. Regarding potential marker performance, FOI probably shows a reduction of inflammation more objectively.
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Affiliation(s)
- Anne-Marie Glimm
- Department of Rheumatology and Clinical Immunology, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Lisa Ines Sprenger
- Department of Rheumatology and Clinical Immunology, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | | | - Ulrich Mansmann
- Institut für medizinische Informationsverarbeitung, Biometrie und Epidemiologie (IBE), Ludwig-Maximilians-Universität München, Munich, Germany
| | - Sandra Hermann
- Department of Rheumatology and Clinical Immunology, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Thomas Häupl
- Department of Rheumatology and Clinical Immunology, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Paula Hoff
- Department of Rheumatology and Clinical Immunology, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Gerd-Rüdiger Burmester
- Department of Rheumatology and Clinical Immunology, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany
| | - Marina Backhaus
- Department of Rheumatology and Clinical Immunology, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany.,Innere Medizin - Bereich Rheumatologie und Klinische Immunologie, Park-Klinik Weißensee, Berlin, Germany
| | - Lien Le
- Institut für medizinische Informationsverarbeitung, Biometrie und Epidemiologie (IBE), Ludwig-Maximilians-Universität München, Munich, Germany
| | - Sarah Ohrndorf
- Department of Rheumatology and Clinical Immunology, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117, Berlin, Germany.
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9
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Erdmann‐Keding M, Ohrndorf S, Werner SG, Glimm A, Burmester G, Kokolakis G, Zuberbier T, Sterry W, Backhaus M, Philipp S. Fluoreszenzoptische Bildgebung zum Nachweis einer möglichen Psoriasisarthritis im Vergleich zum muskuloskelettalen Ultraschall. J Dtsch Dermatol Ges 2019; 17:913-922. [DOI: 10.1111/ddg.13931_g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 02/25/2019] [Indexed: 11/26/2022]
Affiliation(s)
| | - Sarah Ohrndorf
- Med. Klinik mit SP Rheumatologie und Klin. ImmunologieCharité – Universitätsmedizin Berlin
| | | | - Anne‐Marie Glimm
- Med. Klinik mit SP Rheumatologie und Klin. ImmunologieCharité – Universitätsmedizin Berlin
| | - Gerd‐Rüdiger Burmester
- Med. Klinik mit SP Rheumatologie und Klin. ImmunologieCharité – Universitätsmedizin Berlin
| | - Georgios Kokolakis
- Klinik für DermatologieVenerologie und AllergologieCharité – Universitätsmedizin Berlin
| | - Torsten Zuberbier
- Klinik für DermatologieVenerologie und AllergologieCharité – Universitätsmedizin Berlin
| | - Wolfram Sterry
- Klinik für DermatologieVenerologie und AllergologieCharité – Universitätsmedizin Berlin
| | - Marina Backhaus
- Med. Klinik mit SP Rheumatologie und Klin. ImmunologieCharité – Universitätsmedizin Berlin
- Abteilung für Innere MedizinRheumatologie und Klinische Immunologie Park‐Klinik Weißensee Berlin
| | - Sandra Philipp
- Klinik für DermatologieVenerologie und AllergologieCharité – Universitätsmedizin Berlin
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10
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Hand osteoarthritis: clinical phenotypes, molecular mechanisms and disease management. Nat Rev Rheumatol 2019; 14:641-656. [PMID: 30305701 DOI: 10.1038/s41584-018-0095-4] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Osteoarthritis (OA) is a highly prevalent condition, and the hand is the most commonly affected site. Patients with hand OA frequently report symptoms of pain, functional limitations and frustration in undertaking everyday activities. The condition presents clinically with changes to the bone, ligaments, cartilage and synovial tissue, which can be observed using radiography, ultrasonography or MRI. Hand OA is a heterogeneous disorder and is considered to be multifactorial in aetiology. This Review provides an overview of the epidemiology, presentation and burden of hand OA, including an update on hand OA imaging (including the development of novel techniques), disease mechanisms and management. In particular, areas for which new evidence has substantially changed the way we understand, consider and treat hand OA are highlighted. For example, genetic studies, clinical trials and careful prospective imaging studies from the past 5 years are beginning to provide insights into the pathogenesis of hand OA that might uncover new therapeutic targets in the disease.
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11
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Doan TN, Bernard FC, McKinney JM, Dixon JB, Willett NJ. Endothelin-1 inhibits size dependent lymphatic clearance of PEG-based conjugates after intra-articular injection into the rat knee. Acta Biomater 2019; 93:270-281. [PMID: 30986528 DOI: 10.1016/j.actbio.2019.04.025] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 04/04/2019] [Accepted: 04/10/2019] [Indexed: 12/12/2022]
Abstract
Clearance of particles from the knee is an essential mechanism to maintain healthy joint homeostasis and critical to the delivery of drugs and therapeutics. One of the limitations in developing disease modifying drugs for joint diseases, such as osteoarthritis (OA), has been poor local retention of the drugs. Enhancing drug retention within the joint has been a target of biomaterial development, however, a fundamental understanding of joint clearance pathways has not been characterized. We applied near-infrared (NIR) imaging techniques to assess size-dependent in vivo clearance mechanisms of intra-articular injected, fluorescently-labelled polyethylene glycol (PEG-NIR) conjugates. The clearance of 2 kDa PEG-NIR (τ = 171 ± 11 min) was faster than 40 kDa PEG-NIR (τ = 243 ± 16 min). 40 kDa PEG-NIR signal was found in lumbar lymph node while 2 kDa PEG-NIR signal was not. Thus, these two conjugates may be cleared through different pathways, i.e. lymphatics for 40 kDa PEG-NIR and venous for 2 kDa PEG-NIR. Endothelin-1 (ET-1), a potent vasoconstrictor of vessels, is elevated in synovial fluid of OA patients but, its effects on joint clearance are unknown. Intra-articular injection of ET-1 dose-dependently inhibited the clearance of both 2 kDa and 40 kDa PEG-NIR. ET-1 caused a 1.63 ± 0.17-fold increase in peak fluorescence for 2 kDa PEG-NIR and a 1.85 ± 0.15-fold increase for 40 kDa PEG-NIR; and ET-1 doubled their clearance time constants. The effects of ET-1 were blocked by co-injection of ET receptor antagonists, bosentan or BQ-123. These findings provide fundamental insight into retention and clearance mechanisms that should be considered in the development and delivery of drugs and biomaterial carriers for joint diseases. STATEMENT OF SIGNIFICANCE: This study demonstrates that in vivo knee clearance can be measured using NIR technology and that key factors, such as size of materials and biologics, can be investigated to define joint clearance mechanisms. Therapies targeting regulation of joint clearance may be an approach to treat joint diseases like osteoarthritis. Additionally, in vivo functional assessment of clearance may be used as diagnostics to monitor progression of joint diseases.
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12
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Malattia C, Rinaldi M, Martini A. The role of imaging in juvenile idiopathic arthritis. Expert Rev Clin Immunol 2018; 14:681-694. [PMID: 29972659 DOI: 10.1080/1744666x.2018.1496019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
INTRODUCTION The prognosis of juvenile idiopathic arthritis (JIA) has changed dramatically due to the availability of novel drugs. Prompt diagnosis and treatment are essential to prevent permanent joint damage. As a result, methods to improve JIA diagnosis and prognosis are of high priority to tailor treatment strategies and maximize their efficacy. Musculoskeletal ultrasound and magnetic resonance imaging are more sensitive than clinical examination and radiography in the detection of joint involvement and might play a substantial role to optimize the management of JIA. Areas covered: This review compiles an inventory of potential uses of imaging studies in the modern practice of pediatric rheumatology, together with a critical analysis of the major challenges that are still to be addressed. Imaging appearance of normal growth-related changes of the musculoskeletal system will be discussed. Expert commentary: Knowledge of the evolving patterns of skeletal maturity is paramount to define pathological findings and avoid misinterpretations. Establishing a novel radiological algorithm for a rational use of imaging in JIA is of high priority to allow a speedier integration of imaging into the clinical workflow and decision-making process.
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Affiliation(s)
- Clara Malattia
- a Clinica Pediatrica e Reumatologia , Istituto Giannina Gaslini , Genova , Italy.,b Dipartimento di Neuroscienze, Riabilitazione, Oftalmologia, Genetica e Scienze Materno-Infantili , Università degli studi di Genova , Italy
| | - Mariangela Rinaldi
- a Clinica Pediatrica e Reumatologia , Istituto Giannina Gaslini , Genova , Italy
| | - Alberto Martini
- c Direzione Scientifica Istituto Giannina Gaslini , Genova Italy
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Beck MC, Glimm AM, Ohrndorf S, Minden K, Trauzeddel R, Werner SG, Horneff G, Backhaus M, Burmester GR, Kallinich T, Girschick H, Klotsche J. Fluorescence optical imaging in pediatric patients with inflammatory and non-inflammatory joint diseases: a comparative study with ultrasonography. Arthritis Res Ther 2017; 19:233. [PMID: 29041986 PMCID: PMC5646108 DOI: 10.1186/s13075-017-1440-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Accepted: 09/21/2017] [Indexed: 11/15/2022] Open
Abstract
Background Valid detection of arthritis is essential in differential diagnosis of joint pain. Indocyanin green (ICG)-enhanced fluorescence optical imaging (FOI) is a new imaging method that visualizes inflammation in wrist and finger joints. Objectives of this study were to compare FOI with ultrasonography (US, by gray-scale (GS) and power Doppler (PD)) and clinical examination (CE) and to estimate the predictive power of FOI for discrimination between inflammatory and non-inflammatory juvenile joint diseases. Methods FOI and GSUS/PDUS were performed in both hands of 76 patients with joint pain (53 with juvenile idiopathic arthritis (JIA), 23 with non-inflammatory joint diseases). Inflammation was graded by a semiquantitative score (grades 0–3) for each imaging method. Joints were defined clinically active if swollen or tender with limited range of motion. Sensitivity and specificity of FOI in three phases dependent on ICG enhancement (P1–P3) were analyzed with CE and GSUS/PDUS as reference. Results For JIA patients, FOI had an overall sensitivity of 67.3%/72.0% and a specificity of 65.0%/58.8% with GSUS/PDUS as reference; specificity was highest in P3 (GSUS 94.3%/PDUS 91.7%). FOI was more sensitive for detecting clinically active joints than GSUS/PDUS (75.2% vs 57.3%/32.5%). In patients with non-inflammatory joint diseases both FOI and US showed positive (i.e., pathological) findings (25% and 14% of joints). The predictive value for discrimination between inflammatory and non-inflammatory joint diseases was 0.79 for FOI and 0.80/0.85 for GSUS/PDUS. Conclusions Dependent on the phase evaluated, FOI had moderate to good agreement with CE and US. Both imaging methods revealed limitations and should be interpreted cautiously. FOI may provide an additional diagnostic method in pediatric rheumatology. Trial registration Deutsches Register Klinischer Studien DRKS00012572. Registered 31 July 2017.
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Affiliation(s)
- Marisa Christin Beck
- German Rheumatism Research Center, a Leibniz Institute, Program Area Epidemiology, Charitéplatz 1, 10117, Berlin, Germany. .,Charité University Medicine Berlin, Rheumatology and Clinical Immunology, Charitéplatz 1, 10117, Berlin, Germany.
| | - Anne-Marie Glimm
- Charité University Medicine Berlin, Rheumatology and Clinical Immunology, Charitéplatz 1, 10117, Berlin, Germany
| | - Sarah Ohrndorf
- Charité University Medicine Berlin, Rheumatology and Clinical Immunology, Charitéplatz 1, 10117, Berlin, Germany
| | - Kirsten Minden
- German Rheumatism Research Center, a Leibniz Institute, Program Area Epidemiology, Charitéplatz 1, 10117, Berlin, Germany.,Charité University Medicine Berlin, Rheumatology and Clinical Immunology, Charitéplatz 1, 10117, Berlin, Germany
| | - Ralf Trauzeddel
- Department of Pediatric Rheumatology, Helios Hospital Berlin-Buch, Schwanebecker Chaussee 50, 13125, Berlin, Germany
| | | | - Gerd Horneff
- Centre for Paediatric Rheumatology, Department of Paediatrics, Asklepios Clinic Sankt Augustin, Arnold-Janssen-Straße 29, 53757, Sankt Augustin, Germany
| | - Marina Backhaus
- Charité University Medicine Berlin, Rheumatology and Clinical Immunology, Charitéplatz 1, 10117, Berlin, Germany.,Department of Internal Medicine, Rheumatology and Clinical Immunology, Park-Klinik Weissensee, Schönstraße 80, 13086, Berlin, Germany
| | - Gerd Rüdiger Burmester
- Charité University Medicine Berlin, Rheumatology and Clinical Immunology, Charitéplatz 1, 10117, Berlin, Germany
| | - Tilmann Kallinich
- Charité University Medicine Berlin, Pediatric Pneumology and Immunology, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Hermann Girschick
- Children's Hospital, Vivantes Hospital im Friedrichshain, Landsberger Allee 49, 10249, Berlin, Germany
| | - Jens Klotsche
- German Rheumatism Research Center, a Leibniz Institute, Program Area Epidemiology, Charitéplatz 1, 10117, Berlin, Germany.,Institute for Social Medicine, Epidemiology and Health Economics, Charité University Berlin, Luisenstraße 57, 10117, Berlin, Germany
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Klein A, Just GW, Werner SG, Oommen PT, Minden K, Becker I, Langer HE, Klee D, Horneff G. Fluorescence optical imaging and musculoskeletal ultrasonography in juvenile idiopathic polyarticular disease before and during antirheumatic treatment - a multicenter non-interventional diagnostic evaluation. Arthritis Res Ther 2017; 19:147. [PMID: 28666454 PMCID: PMC5493121 DOI: 10.1186/s13075-017-1355-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 05/30/2017] [Indexed: 11/10/2022] Open
Abstract
Background Valid detection of inflamed joints is essential for correct classification, therapeutic decisions, prognosis and assessment of treatment efficacy in juvenile idiopathic arthritis (JIA). Fluorescence optical imaging (FOI) enables visualization of inflammation in arthritis of finger and hand joints and might be used for monitoring. Methods A 24-week observational study in polyarticular JIA patients newly starting treatment with methotrexate or an approved biologic was performed in three centers. Patients were evaluated clinically, by gray-scale ultrasonography (GSUS), power-Doppler ultrasonography (PDUS) and FOI at baseline, week 12 and week 24. Results Of 37 patients enrolled, 24 patients started methotrexate and 13 patients a biologic for the first time (etanercept n = 11, adalimumab and tocilizumab n = 1 each). Mean JADAS 10 decreased significantly from 17.7 at baseline to 12.2 and 7.2 at week 12 and 24 respectively. PedACR 30/50/70/100 response rates at week 24 were 85%/73%/50%/27%. The total number of clinically active joints in hand and fingers at baseline/week 12/week 24 was 262 (23.6%)/162 (16.4%)/162 (9.0%). By GSUS, at baseline/week 12/week 24, 192 (19.4%)/135 (16.1%)/83 (11.5%) joints showed effusions and 186 (18.8%)/107 (12.7%)/69 (9.6%) showed synovial thickening, and by PDUS 68 (6.9%)/15 (1.8%)/36 (5%) joints showed hyperperfusion. Any sign of arthritis was detected by US in a total of 243 joints (24.5%) at baseline, 161 joints (19.2%) at week 12 and 123 joints (17%) at week 24. By FOI at baseline/week 12/week 24, 430 (38.7%)/280 (29.2%)/215 (27.6%) showed a signal enhancement in at least one phase. Summarizing all three points of time, the highest numbers of signals were detected by FOI with 32% of joints, especially in phase 2, while by US 20.7% and by clinical examination 17.5% of joints were active. A high number of joints (21.1%) had FOI signals but were inactive by clinical examination. A total 20.1% of joints with signals in FOI did not show effusion, synovial thickening or hyperperfusion by US. Because of the high number of negative results, specificity of FOI compared with clinical examination/US/PD was high (84–95%), and sensitivity was only moderate. Conclusion FOI and US could detect clinical but also subclinical inflammation. FOI detected subclinical inflammation to a higher extent than US. Improvement upon treatment with either methotrexate or a biologic can be visualized by FOI and US. Trial registration Deutsches Register Klinischer Studien DRKS00011579. Registered 10 January 2017.
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Affiliation(s)
- Ariane Klein
- Centre for Paediatric Rheumatology, Department of Paediatrics, Asklepios Clinic Sankt Augustin, Arnold-Janssen-Strasse 29, 53757, Sankt Augustin, Germany.
| | - Georg Werner Just
- Centre for Paediatric Rheumatology, Department of Paediatrics, Asklepios Clinic Sankt Augustin, Arnold-Janssen-Strasse 29, 53757, Sankt Augustin, Germany
| | | | - Prasad T Oommen
- Department of Pediatric Oncology, Hematology and Clinical Immunology, University Children's Hospital, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany
| | - Kirsten Minden
- Charité University Medicine and Epidemiology Unit, German Rheumatism Research Centre, Berlin, Germany
| | - Ingrid Becker
- Institute of Medical Statistics, University of Cologne, Cologne, Nordrhein-Westfalen, Germany
| | - Hans-Eckhard Langer
- RHIO (Rheumatologie, Immunologie, Osteologie) Düsseldorf, Düsseldorf, Germany
| | - Dirk Klee
- Department of Diagnostic and Interventional Radiology, University Düsseldorf, Medical Faculty, Moorenstraße 5, 40225, Düsseldorf, Germany
| | - Gerd Horneff
- Centre for Paediatric Rheumatology, Department of Paediatrics, Asklepios Clinic Sankt Augustin, Arnold-Janssen-Strasse 29, 53757, Sankt Augustin, Germany
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Kisten Y, Györi N, Af Klint E, Rezaei H, Levitsky A, Karlsson A, van Vollenhoven R. Detection of clinically manifest and silent synovitis in the hands and wrists by fluorescence optical imaging. RMD Open 2015; 1:e000106. [PMID: 26535142 PMCID: PMC4612680 DOI: 10.1136/rmdopen-2015-000106] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Revised: 05/27/2015] [Accepted: 05/28/2015] [Indexed: 01/11/2023] Open
Abstract
Objectives The correct identification of synovitis is critical for achieving optimal therapy results. Fluorescence optical imaging (FOI) is a novel modality based on the use of an intravenous fluorophore, which enables fluorescent imaging of the hands and wrists with increased focal optical signal intensities in areas of high perfusion and/or capillary leakage. The study objective was to determine the diagnostic utility of FOI in detecting apparent and clinically non-apparent active synovitis. Methods Bilateral hand and wrist joints (n=872) of 26 patients with inflammatory arthritis assessed by standard clinical examination, musculoskeletal ultrasound (MSUS) and FOI were studied. Synovitis was defined as tender and swollen joints on clinical examination, presence of synovial thickening and intra-articular Doppler signals on MSUS, and abnormal focal optical signal intensities on FOI, respectively. Subclinical synovitis was defined as being clinically non-apparent, but positively inflamed on MSUS. Results Depending on the standard used to define inflammation, FOI ranged from 73–83% sensitive and 83–95% specific for detecting manifest synovitis. For detecting clinically silent synovitis, the sensitivity, specificity and positive and negative predictive values of FOI were 80%, 96%, 77% and 97%, respectively. Conclusions The high degree of agreement between MSUS and FOI suggest its use in clinical practice, especially when MSUS is not available, in order to identify synovitis earlier and with greater confidence. FOI may be particularly useful in identifying patients with clinically non-apparent joint inflammation of the hands and/or wrists.
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Affiliation(s)
- Yogan Kisten
- Unit for Clinical Therapy Research, Inflammatory Diseases (ClinTRID), Karolinska Institute, Karolinska University Hospital , Stockholm , Sweden
| | - Noémi Györi
- Unit for Clinical Therapy Research, Inflammatory Diseases (ClinTRID), Karolinska Institute, Karolinska University Hospital , Stockholm , Sweden
| | - Erik Af Klint
- The Rheumatology Clinic, Karolinska University Hospital , Stockholm , Sweden
| | - Hamed Rezaei
- Unit for Clinical Therapy Research, Inflammatory Diseases (ClinTRID), Karolinska Institute, Karolinska University Hospital , Stockholm , Sweden ; The Rheumatology Clinic, Karolinska University Hospital , Stockholm , Sweden
| | - Adrian Levitsky
- Unit for Clinical Therapy Research, Inflammatory Diseases (ClinTRID), Karolinska Institute, Karolinska University Hospital , Stockholm , Sweden
| | - Anna Karlsson
- The Rheumatology Clinic, Karolinska University Hospital , Stockholm , Sweden
| | - Ronald van Vollenhoven
- Unit for Clinical Therapy Research, Inflammatory Diseases (ClinTRID), Karolinska Institute, Karolinska University Hospital , Stockholm , Sweden ; The Rheumatology Clinic, Karolinska University Hospital , Stockholm , Sweden
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Krohn M, Ohrndorf S, Werner SG, Schicke B, Burmester GR, Hamm B, Backhaus M, Hermann KGA. Near-infrared Fluorescence Optical Imaging in Early Rheumatoid Arthritis: A Comparison to Magnetic Resonance Imaging and Ultrasonography. J Rheumatol 2015; 42:1112-8. [PMID: 25934821 DOI: 10.3899/jrheum.141244] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/02/2015] [Indexed: 11/22/2022]
Abstract
OBJECTIVE Near-infrared fluorescence optical imaging (FOI) is a novel imaging technology in the detection and evaluation of different arthritides. FOI was validated in comparison to magnetic resonance imaging (MRI), greyscale ultrasonography (GSUS), and power Doppler ultrasonography (PDUS) in patients with early rheumatoid arthritis (RA). METHODS Hands of 31 patients with early RA were examined by FOI, MRI, and US. In each modality, synovitis of the wrist, metacarpophalangeal joints (MCP) 2-5, and proximal interphalangeal joints (PIP) 2-5 were scored on a 4-point scale (0-3). Sensitivity and specificity of FOI were analyzed in comparison to MRI and US as reference methods, differentiating between 3 phases of FOI enhancement (P1-3). Intraclass correlation coefficients (ICC) were calculated to evaluate the agreement of FOI with MRI and US. RESULTS A total of 279 joints (31 wrists, 124 MCP and 124 PIP joints) were evaluated. With MRI as the reference method, overall sensitivity/specificity of FOI was 0.81/0.00, 0.49/0.84, and 0.86/0.38 for wrist, MCP, and PIP joints, respectively. Under application of PDUS as reference, sensitivity was even higher, while specificity turned out to be low, except for MCP joints (0.88/0.15, 0.81/0.76, and 1.00/0.27, respectively). P2 appears to be the most sensitive FOI phase, while P1 showed the highest specificity. The best agreement of FOI was shown for PDUS, especially with regard to MCP and PIP joints (ICC of 0.57 and 0.53, respectively), while correlation with MRI was slightly lower. CONCLUSION FOI remains an interesting diagnostic tool for patients with early RA, although this study revealed limitations concerning the detection of synovitis. Further research is needed to evaluate its full diagnostic potential in rheumatic diseases.
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Affiliation(s)
- Michaela Krohn
- From the Department of Radiology, and the Department of Rheumatology and Clinical Immunology, Charité University Hospital, Berlin; RHIO - Rheumatology, Immunology, Osteology Center, Düsseldorf; Berlin Cancer Center (Tumorzentrum Berlin), Berlin, Germany.M. Krohn, MD, Department of Radiology, Charité University Hospital; S. Ohrndorf, MD, Department of Rheumatology and Clinical Immunology, Charité University Hospital; S.G. Werner, MD, RHIO; B. Schicke, Berlin Cancer Center (Tumorzentrum Berlin); G.R. Burmester, MD, PhD, Department of Rheumatology and Clinical Immunology, Charité University Hospital; B. Hamm, MD, PhD, Department of Radiology, Charité University Hospital; M. Backhaus, MD, PhD, Department of Rheumatology and Clinical Immunology, Charité University Hospital; K.G. Hermann, MD, PhD, Department of Radiology, Charité University Hospital
| | - Sarah Ohrndorf
- From the Department of Radiology, and the Department of Rheumatology and Clinical Immunology, Charité University Hospital, Berlin; RHIO - Rheumatology, Immunology, Osteology Center, Düsseldorf; Berlin Cancer Center (Tumorzentrum Berlin), Berlin, Germany.M. Krohn, MD, Department of Radiology, Charité University Hospital; S. Ohrndorf, MD, Department of Rheumatology and Clinical Immunology, Charité University Hospital; S.G. Werner, MD, RHIO; B. Schicke, Berlin Cancer Center (Tumorzentrum Berlin); G.R. Burmester, MD, PhD, Department of Rheumatology and Clinical Immunology, Charité University Hospital; B. Hamm, MD, PhD, Department of Radiology, Charité University Hospital; M. Backhaus, MD, PhD, Department of Rheumatology and Clinical Immunology, Charité University Hospital; K.G. Hermann, MD, PhD, Department of Radiology, Charité University Hospital
| | - Stephanie G Werner
- From the Department of Radiology, and the Department of Rheumatology and Clinical Immunology, Charité University Hospital, Berlin; RHIO - Rheumatology, Immunology, Osteology Center, Düsseldorf; Berlin Cancer Center (Tumorzentrum Berlin), Berlin, Germany.M. Krohn, MD, Department of Radiology, Charité University Hospital; S. Ohrndorf, MD, Department of Rheumatology and Clinical Immunology, Charité University Hospital; S.G. Werner, MD, RHIO; B. Schicke, Berlin Cancer Center (Tumorzentrum Berlin); G.R. Burmester, MD, PhD, Department of Rheumatology and Clinical Immunology, Charité University Hospital; B. Hamm, MD, PhD, Department of Radiology, Charité University Hospital; M. Backhaus, MD, PhD, Department of Rheumatology and Clinical Immunology, Charité University Hospital; K.G. Hermann, MD, PhD, Department of Radiology, Charité University Hospital
| | - Bernd Schicke
- From the Department of Radiology, and the Department of Rheumatology and Clinical Immunology, Charité University Hospital, Berlin; RHIO - Rheumatology, Immunology, Osteology Center, Düsseldorf; Berlin Cancer Center (Tumorzentrum Berlin), Berlin, Germany.M. Krohn, MD, Department of Radiology, Charité University Hospital; S. Ohrndorf, MD, Department of Rheumatology and Clinical Immunology, Charité University Hospital; S.G. Werner, MD, RHIO; B. Schicke, Berlin Cancer Center (Tumorzentrum Berlin); G.R. Burmester, MD, PhD, Department of Rheumatology and Clinical Immunology, Charité University Hospital; B. Hamm, MD, PhD, Department of Radiology, Charité University Hospital; M. Backhaus, MD, PhD, Department of Rheumatology and Clinical Immunology, Charité University Hospital; K.G. Hermann, MD, PhD, Department of Radiology, Charité University Hospital
| | - Gerd-Rüdiger Burmester
- From the Department of Radiology, and the Department of Rheumatology and Clinical Immunology, Charité University Hospital, Berlin; RHIO - Rheumatology, Immunology, Osteology Center, Düsseldorf; Berlin Cancer Center (Tumorzentrum Berlin), Berlin, Germany.M. Krohn, MD, Department of Radiology, Charité University Hospital; S. Ohrndorf, MD, Department of Rheumatology and Clinical Immunology, Charité University Hospital; S.G. Werner, MD, RHIO; B. Schicke, Berlin Cancer Center (Tumorzentrum Berlin); G.R. Burmester, MD, PhD, Department of Rheumatology and Clinical Immunology, Charité University Hospital; B. Hamm, MD, PhD, Department of Radiology, Charité University Hospital; M. Backhaus, MD, PhD, Department of Rheumatology and Clinical Immunology, Charité University Hospital; K.G. Hermann, MD, PhD, Department of Radiology, Charité University Hospital
| | - Bernd Hamm
- From the Department of Radiology, and the Department of Rheumatology and Clinical Immunology, Charité University Hospital, Berlin; RHIO - Rheumatology, Immunology, Osteology Center, Düsseldorf; Berlin Cancer Center (Tumorzentrum Berlin), Berlin, Germany.M. Krohn, MD, Department of Radiology, Charité University Hospital; S. Ohrndorf, MD, Department of Rheumatology and Clinical Immunology, Charité University Hospital; S.G. Werner, MD, RHIO; B. Schicke, Berlin Cancer Center (Tumorzentrum Berlin); G.R. Burmester, MD, PhD, Department of Rheumatology and Clinical Immunology, Charité University Hospital; B. Hamm, MD, PhD, Department of Radiology, Charité University Hospital; M. Backhaus, MD, PhD, Department of Rheumatology and Clinical Immunology, Charité University Hospital; K.G. Hermann, MD, PhD, Department of Radiology, Charité University Hospital
| | - Marina Backhaus
- From the Department of Radiology, and the Department of Rheumatology and Clinical Immunology, Charité University Hospital, Berlin; RHIO - Rheumatology, Immunology, Osteology Center, Düsseldorf; Berlin Cancer Center (Tumorzentrum Berlin), Berlin, Germany.M. Krohn, MD, Department of Radiology, Charité University Hospital; S. Ohrndorf, MD, Department of Rheumatology and Clinical Immunology, Charité University Hospital; S.G. Werner, MD, RHIO; B. Schicke, Berlin Cancer Center (Tumorzentrum Berlin); G.R. Burmester, MD, PhD, Department of Rheumatology and Clinical Immunology, Charité University Hospital; B. Hamm, MD, PhD, Department of Radiology, Charité University Hospital; M. Backhaus, MD, PhD, Department of Rheumatology and Clinical Immunology, Charité University Hospital; K.G. Hermann, MD, PhD, Department of Radiology, Charité University Hospital
| | - Kay-Geert A Hermann
- From the Department of Radiology, and the Department of Rheumatology and Clinical Immunology, Charité University Hospital, Berlin; RHIO - Rheumatology, Immunology, Osteology Center, Düsseldorf; Berlin Cancer Center (Tumorzentrum Berlin), Berlin, Germany.M. Krohn, MD, Department of Radiology, Charité University Hospital; S. Ohrndorf, MD, Department of Rheumatology and Clinical Immunology, Charité University Hospital; S.G. Werner, MD, RHIO; B. Schicke, Berlin Cancer Center (Tumorzentrum Berlin); G.R. Burmester, MD, PhD, Department of Rheumatology and Clinical Immunology, Charité University Hospital; B. Hamm, MD, PhD, Department of Radiology, Charité University Hospital; M. Backhaus, MD, PhD, Department of Rheumatology and Clinical Immunology, Charité University Hospital; K.G. Hermann, MD, PhD, Department of Radiology, Charité University Hospital.
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Slooter MD, Bierau K, Chan AB, Löwik CWGM. Near infrared fluorescence imaging for early detection, monitoring and improved intervention of diseases involving the joint. Connect Tissue Res 2015; 56:153-60. [PMID: 25689091 DOI: 10.3109/03008207.2015.1012586] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Joints consist of different tissues, such as bone, cartilage and synovium, which are at risk for multiple diseases. The current imaging modalities, such as magnetic resonance imaging, Doppler ultrasound, X-ray, computed tomography and arthroscopy, lack the ability to detect disease activity before the onset of anatomical and significant irreversible damage. Optical in vivo imaging has recently been introduced as a novel imaging tool to study the joint and has the potential to image all kinds of biological processes. This tool is already exploited in (pre)clinical studies of rheumatoid arthritis, osteoarthritis and cancer. The technique uses fluorescent dyes conjugated to targeting moieties that recognize biomarkers of the disease. This review will focus on these new imaging techniques and especially where Near Infrared (NIR) fluorescence imaging has been used to visualize diseases of the joint. NIR fluorescent imaging is a promising technique which will soon complement established radiological, ultrasound and MRI imaging in the clinical management of patients with respect to early disease detection, monitoring and improved intervention.
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Lim NH, Meinjohanns E, Bou-Gharios G, Gompels LL, Nuti E, Rossello A, Devel L, Dive V, Meldal M, Nagase H. In vivo imaging of matrix metalloproteinase 12 and matrix metalloproteinase 13 activities in the mouse model of collagen-induced arthritis. Arthritis Rheumatol 2014; 66:589-98. [PMID: 24574219 DOI: 10.1002/art.38295] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2013] [Accepted: 11/21/2013] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To develop enzyme-activatable Förster resonance energy transfer (FRET) substrate probes to detect matrix metalloproteinase 12 (MMP-12) and MMP-13 activities in vivo in mouse models of inflammatory arthritis. METHODS Peptidic FRET probes activated by MMP-12 and MMP-13 were reverse designed from inhibitors selected from a phosphinic peptide inhibitor library. Selectivity of the probes was demonstrated in vitro using MMP-1, MMP-2, MMP-3, MMP-12, and MMP-13. In vivo activation of the probes was tested in the zymosan-induced mouse model of inflammation, and probe specificity was evaluated by the MMP inhibitor GM6001 and specific synthetic inhibitors of MMP-12 and MMP-13. The probes were used to monitor these enzyme activities in the collagen-induced arthritis (CIA) model in vivo. RESULTS The MMP-12 and MMP-13 activity probes (MMP12ap and MMP13ap, respectively) discriminated between the activities of the 2 enzymes. The in vivo activation of these probes was inhibited by GM6001 and by their respective specific inhibitors. In the CIA model, MMP12ap activation peaked 5 days after disease onset and showed strong correlation with disease severity during this time (r = 0.85, P < 0.0001). MMP13ap activation increased gradually after disease onset and correlated with disease severity over a longer period of 15 days (r = 0.58, P < 0.0001). CONCLUSION We generated two selective FRET probes that can be used to monitor MMP-12 and MMP-13 activities in live animals. MMP12ap follows the initial stage of inflammation in CIA, while MMP13ap follows the progression of the disease. The specificity of these probes is useful in monitoring the efficacy of MMP inhibitors.
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Affiliation(s)
- Ngee Han Lim
- Kennedy Institute of Rheumatology and University of Oxford, Oxford, UK
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Wang B, Galliford CV, Low PS. Guiding principles in the design of ligand-targeted nanomedicines. Nanomedicine (Lond) 2014; 9:313-30. [PMID: 24552563 DOI: 10.2217/nnm.13.175] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Medicines for the treatment of most human pathologies are encumbered by unwanted side effects that arise from the deposition of an effective drug into the wrong tissues. The logical remedy for these undesirable properties involves selective targeting of the therapeutic agent to pathologic cells, thereby avoiding collateral toxicity to healthy cells. Since significant advantages can also accrue by incorporating a therapeutic or imaging agent into a nanoparticle, many laboratories are now combining both benefits into a single formulation. This review will focus on the major guiding principles in the design of ligand-targeted nanoparticles, including optimization of their chemical and physical properties, selection of the ideal targeting ligand, engineering of the appropriate surface passivation and linker strategies to achieve selective delivery of the entrapped cargo to the desired diseased cell.
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Affiliation(s)
- Bingbing Wang
- Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA
| | - Chris V Galliford
- Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA
| | - Philip S Low
- Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA
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Werner SG, Langer HE, Schott P, Bahner M, Schwenke C, Lind-Albrecht G, Spiecker F, Kurtz B, Burmester GR, Backhaus M. Indocyanine Green-Enhanced Fluorescence Optical Imaging in Patients With Early and Very Early Arthritis: A Comparative Study With Magnetic Resonance Imaging. ACTA ACUST UNITED AC 2013; 65:3036-44. [DOI: 10.1002/art.38175] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2013] [Accepted: 08/22/2013] [Indexed: 01/18/2023]
Affiliation(s)
- Stephanie G. Werner
- Charité University Medicine Berlin; Berlin Germany
- RHIO Center Dusseldorf and RHIO Research Institute; Dusseldorf Germany
| | | | - Peter Schott
- Evangelisches Krankenhaus Dusseldorf; Dusseldorf Germany
| | | | | | | | | | - Bernward Kurtz
- Evangelisches Krankenhaus Dusseldorf; Dusseldorf Germany
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Abstract
OBJECTIVE A review of the innovative role molecular imaging plays in musculoskeletal radiology is provided. Musculoskeletal molecular imaging is under development in four key areas: imaging the activity of osteoblasts and osteoclasts, imaging of molecular and cellular biomarkers of arthritic joint destruction, cellular imaging of osteomyelitis, and imaging generators of musculoskeletal pain. CONCLUSION Together, these applications suggest that next-generation musculoskeletal radiology will facilitate quantitative visualization of molecular and cellular biomarkers, an advancement that appeared futuristic just a decade ago.
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Leung K, Chopra A, Shan L, Eckelman WC, Menkens AE. Essential parameters to consider for the characterization of optical imaging probes. Nanomedicine (Lond) 2012; 7:1101-7. [PMID: 22846094 PMCID: PMC3445333 DOI: 10.2217/nnm.12.79] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The Molecular Imaging and Contrast Agents Database (MICAD) was launched in 2005 to promote the development and application of imaging and contrast agents (probes) to advance the field of molecular imaging. As of March 2012, there are approximately 1170 agents available in MICAD. Based on the modality used for imaging, the largest category of probes described in MICAD are those used for PET (41.6%), followed by agents used for single-photon emission computed tomography (30.3%), optical imaging (12.0%), MRI (9.3%), multimodality imaging (3.4%), ultrasound (2.4%) and x-ray/computed tomography (1.0%). This article is intended to be a guideline for new investigators and students who wish to characterize an optical imaging probe that will be used to perform in vivo molecular imaging studies. It is necessary, however, to ensure that these agents meet certain quality control parameters before they are used in various in vitro and in vivo applications.
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Affiliation(s)
- Kam Leung
- Molecular Imaging & Contrast Agents Database, National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD 20894, USA.
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Werner SG, Langer HE, Ohrndorf S, Bahner M, Schott P, Schwenke C, Schirner M, Bastian H, Lind-Albrecht G, Kurtz B, Burmester GR, Backhaus M. Inflammation assessment in patients with arthritis using a novel in vivo fluorescence optical imaging technology. Ann Rheum Dis 2012; 71:504-10. [PMID: 22388997 PMCID: PMC3298665 DOI: 10.1136/annrheumdis-2010-148288] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Indocyanine green (ICG)-enhanced fluorescence optical imaging (FOI) is an established technology for imaging of inflammation in animal models. In experimental models of arthritis, FOI findings corresponded to histologically proven synovitis. This is the first comparative study of FOI with other imaging modalities in humans with arthritis. METHODS 252 FOI examinations (Xiralite system, mivenion GmbH, Berlin, Germany; ICG bolus of 0.1 mg/kg/body weight, sequence of 360 images, one image per second) were compared with clinical examination (CE), ultrasonography (US) and MRI of patients with arthritis of the hands. RESULTS In an FOI sequence, three phases could be distinguished (P1-P3). With MRI as reference, FOI had a sensitivity of 76% and a specificity of 54%, while the specificity of phase 1 was 94%. FOI had agreement rates up to 88% versus CE, 64% versus greyscale US, 88% versus power Doppler US and 83% versus MRI, depending on the compared phase and parameter. FOI showed a higher rate of positive results compared to CE, US and MRI. In individual patients, FOI correlated significantly (p<0.05) with disease activity (Disease Activity Score 28, r=0.41), US (r=0.40) and RAMRIS (Rheumatoid Arthritis MRI Score) (r=0.56). FOI was normal in 97.8% of joints of controls. CONCLUSION ICG-enhanced FOI is a new technology offering sensitive imaging detection of inflammatory changes in subjects with arthritis. FOI was more sensitive than CE and had good agreement with CE, US in power Doppler mode and MRI, while showing more positive results than these. An adequate interpretation of an FOI sequence requires a separate evaluation of all phases. For the detection of synovitis and tenosynovitis, FOI appears to be as informative as 1.5 T MRI and US.
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A review of indocyanine green fluorescent imaging in surgery. Int J Biomed Imaging 2012; 2012:940585. [PMID: 22577366 PMCID: PMC3346977 DOI: 10.1155/2012/940585] [Citation(s) in RCA: 774] [Impact Index Per Article: 64.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2011] [Accepted: 02/01/2012] [Indexed: 02/07/2023] Open
Abstract
The purpose of this paper is to give an overview of the recent surgical intraoperational applications of indocyanine green fluorescence imaging methods, the basics of the technology, and instrumentation used. Well over 200 papers describing this technique in clinical setting are reviewed. In addition to the surgical applications, other recent medical applications of ICG are briefly examined.
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Byrne R, Rath E, Hladik A, Niederreiter B, Bonelli M, Frantal S, Smolen JS, Scheinecker C. A dynamic real time in vivo and static ex vivo analysis of granulomonocytic cell migration in the collagen-induced arthritis model. PLoS One 2012; 7:e35194. [PMID: 22529989 PMCID: PMC3329447 DOI: 10.1371/journal.pone.0035194] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2011] [Accepted: 03/13/2012] [Indexed: 11/18/2022] Open
Abstract
Neutrophilic granulocytes and monocytes (granulomonocytic cells; GMC) drive the inflammatory process at the earliest stages of rheumatoid arthritis (RA). The migratory behavior and functional properties of GMC within the synovial tissue are, however, only incompletely characterized. Here we have analyzed GMC in the murine collagen-induced arthritis (CIA) model of RA using multi-photon real time in vivo microscopy together with ex vivo analysis of GMC in tissue sections.GMC were abundant as soon as clinical arthritis was apparent. GMC were motile and migrated randomly through the synovial tissue. In addition, we observed the frequent formation of cell clusters consisting of both neutrophilic granulocytes and monocytes that actively contributed to the inflammatory process of arthritis. Treatment of animals with a single dose of prednisolone reduced the mean velocity of cell migration and diminished the overall immigration of GMC.In summary, our study shows that the combined application of real time in vivo microscopy together with elaborate static post-mortem analysis of GMC enables the description of dynamic migratory characteristics of GMC together with their precise location in a complex anatomical environment. Moreover, this approach is sensitive enough to detect subtle therapeutic effects within a very short period of time.
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Affiliation(s)
- Ruth Byrne
- Divison of Rheumatology, Internal Medicine III, Medical University of Vienna, Waehringer Guertel, Vienna, Austria
| | - Eva Rath
- Divison of Rheumatology, Internal Medicine III, Medical University of Vienna, Waehringer Guertel, Vienna, Austria
| | - Anastasiya Hladik
- Divison of Rheumatology, Internal Medicine III, Medical University of Vienna, Waehringer Guertel, Vienna, Austria
| | - Birgit Niederreiter
- Divison of Rheumatology, Internal Medicine III, Medical University of Vienna, Waehringer Guertel, Vienna, Austria
| | - Michael Bonelli
- Divison of Rheumatology, Internal Medicine III, Medical University of Vienna, Waehringer Guertel, Vienna, Austria
| | - Sophie Frantal
- Center for Medical Statistics, Informatics and Intelligent Systems, Medical University of Vienna, Waehringer Guertel, Vienna, Austria
| | - Josef S. Smolen
- Divison of Rheumatology, Internal Medicine III, Medical University of Vienna, Waehringer Guertel, Vienna, Austria
| | - Clemens Scheinecker
- Divison of Rheumatology, Internal Medicine III, Medical University of Vienna, Waehringer Guertel, Vienna, Austria
- * E-mail:
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Qi X, Flick MJ, Frederick M, Chu Z, Mason R, DeLay M, Thornton S. Saposin C coupled lipid nanovesicles specifically target arthritic mouse joints for optical imaging of disease severity. PLoS One 2012; 7:e33966. [PMID: 22470501 PMCID: PMC3314692 DOI: 10.1371/journal.pone.0033966] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2011] [Accepted: 02/22/2012] [Indexed: 12/15/2022] Open
Abstract
Rheumatoid arthritis is a chronic inflammatory disease affecting approximately 1% of the population and is characterized by cartilage and bone destruction ultimately leading to loss of joint function. Early detection and intervention of disease provides the best hope for successful treatment and preservation of joint mobility and function. Reliable and non-invasive techniques that accurately measure arthritic disease onset and progression are lacking. We recently developed a novel agent, SapC-DOPS, which is composed of the membrane-associated lysosomal protein saposin C (SapC) incorporated into 1,2-dioleoyl-sn-glycero-3-phospho-L-serine (DOPS) lipid nanovesicles. SapC-DOPS has a high fusogenic affinity for phosphatidylserine-enriched microdomains on surfaces of target cell membranes. Incorporation of a far-red fluorophore, CellVue Maroon (CVM), into the nanovesicles allows for in vivo non-invasive visualization of the agent in targeted tissue. Given that phosphatidylserine is present only on the inner leaflet of healthy plasma membranes but is “flipped” to the outer leaflet upon cell damage, we hypothesized that SapC-DOPS would target tissue damage associated with inflammatory arthritis due to local surface-exposure of phosphatidylserine. Optical imaging with SapC-DOPS-CVM in two distinct models of arthritis, serum-transfer arthritis (e.g., K/BxN) and collagen-induced arthritis (CIA) revealed robust SapC-DOPS-CVM specific localization to arthritic paws and joints in live animals. Importantly, intensity of localized fluorescent signal correlated with macroscopic arthritic disease severity and increased with disease progression. Flow cytometry of cells extracted from arthritic joints demonstrated that SapC-DOPS-CVM localized to an average of 7–8% of total joint cells and primarily to CD11b+Gr-1+ cells. Results from the current studies strongly support the application of SapC-DOPS-CVM for advanced clinical and research applications including: detecting early arthritis onset, assessing disease progression real-time in live subjects, and providing novel information regarding cell types that may mediate arthritis progression within joints.
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Affiliation(s)
- Xiaoyang Qi
- Division of Hematology-Oncology, Departments of Internal Medicine and Pediatrics, University of Cincinnati College of Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States of America
- Division of Human Genetics, Departments of Internal Medicine and Pediatrics, University of Cincinnati College of Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States of America
| | - Matthew J. Flick
- Division of Experimental Hematology, Departments of Internal Medicine and Pediatrics, University of Cincinnati College of Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States of America
| | - Malinda Frederick
- Division of Rheumatology, Departments of Internal Medicine and Pediatrics, University of Cincinnati College of Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States of America
| | - Zhengtao Chu
- Division of Hematology-Oncology, Departments of Internal Medicine and Pediatrics, University of Cincinnati College of Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States of America
- Division of Human Genetics, Departments of Internal Medicine and Pediatrics, University of Cincinnati College of Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States of America
| | - Rachel Mason
- Division of Rheumatology, Departments of Internal Medicine and Pediatrics, University of Cincinnati College of Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States of America
| | - Monica DeLay
- Division of Rheumatology, Departments of Internal Medicine and Pediatrics, University of Cincinnati College of Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States of America
| | - Sherry Thornton
- Division of Rheumatology, Departments of Internal Medicine and Pediatrics, University of Cincinnati College of Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, United States of America
- * E-mail:
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27
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Shire NJ, Dardzinski BJ. Picture-perfect: imaging techniques in juvenile idiopathic arthritis. ACTA ACUST UNITED AC 2011. [DOI: 10.2217/iim.11.63] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Hielscher AH, Kim HK, Montejo LD, Blaschke S, Netz UJ, Zwaka PA, Illing G, Muller GA, Beuthan J. Frequency-domain optical tomographic imaging of arthritic finger joints. IEEE TRANSACTIONS ON MEDICAL IMAGING 2011; 30:1725-36. [PMID: 21964730 DOI: 10.1109/tmi.2011.2135374] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
We are presenting data from the largest clinical trial on optical tomographic imaging of finger joints to date. Overall we evaluated 99 fingers of patients affected by rheumatoid arthritis (RA) and 120 fingers from healthy volunteers. Using frequency-domain imaging techniques we show that sensitivities and specificities of 0.85 and higher can be achieved in detecting RA. This is accomplished by deriving multiple optical parameters from the optical tomographic images and combining them for the statistical analysis. Parameters derived from the scattering coefficient perform slightly better than absorption derived parameters. Furthermore we found that data obtained at 600 MHz leads to better classification results than data obtained at 0 or 300 MHz.
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Affiliation(s)
- Andreas H Hielscher
- Department of Biomedical Engineering, Columbia University, New York 10027, USA.
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Yan W, Xiao D, Yao K. Combined bioluminescence and fluorescence imaging visualizing orthotopic lung adenocarcinoma xenograft in vivo. Acta Biochim Biophys Sin (Shanghai) 2011; 43:595-600. [PMID: 21742671 DOI: 10.1093/abbs/gmr054] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Lung adenocarcinoma is the most common type of lung cancer. A close monitor of in vivo tumor development may help to better understand the pathogenesis and pathological processes of this disease. A bimodal imaging strategy has been developed, which is a very important tool to investigate the growth and metastasis of lung adenocarcinoma. In the present study, we used a combined labeling strategy in p53RE-luc-A549 cells via transfecting the reporter gene EGFP. In order to unambiguously identify the growth and metastasis of transfected A549 tumor cells, we established and observed subcutaneous and orthotopic xenografts in nude mice by in vivo bioluminescence and fluorescence imaging, which was verified by our post-mortem histological analysis. In vivo bioluminescence signal was observed for the progression of both subcutaneous and orthotopic xenografts in EGFP-p53RE-luc-A549 cells; in vivo fluorescence was only observed for the growth of subcutaneous xenograft of EGFP-p53RE-luc-A549 cells. Moreover, EGFP-p53RE-luc-A549 cells allow for the improved identification of implanted cells within host tissue during histological analysis. In conclusion, we presented a combined labeling strategy for bimodal A549 cell imaging which leads to improved detection of cellular grafts.
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Affiliation(s)
- Wen Yan
- Cancer Institution, Southern Medical University, Guangdong 510515, China
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Gompels LL, Paleolog EM. A window on disease pathogenesis and potential therapeutic strategies: molecular imaging for arthritis. Arthritis Res Ther 2011; 13:201. [PMID: 21345267 PMCID: PMC3157632 DOI: 10.1186/ar3197] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Novel molecular imaging techniques are at the forefront of both preclinical and clinical imaging strategies. They have significant potential to offer visualisation and quantification of molecular and cellular changes in health and disease. This will help to shed light on pathobiology and underlying disease processes and provide further information about the mechanisms of action of novel therapeutic strategies. This review explores currently available molecular imaging techniques that are available for preclinical studies with a focus on optical imaging techniques and discusses how current and future advances will enable translation into the clinic for patients with arthritis.
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Affiliation(s)
- Luke L Gompels
- Kennedy Institute of Rheumatology, Faculty of Medicine, Imperial College, Charing Cross Hospital Campus, 65 Aspenlea Road, London W68LH, UK.
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Gompels LL, Madden L, Lim NH, Inglis JJ, McConnell E, Vincent TL, Haskard DO, Paleolog EM. In vivo fluorescence imaging of E-selectin: quantitative detection of endothelial activation in a mouse model of arthritis. ACTA ACUST UNITED AC 2011; 63:107-17. [PMID: 20954188 DOI: 10.1002/art.30082] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
OBJECTIVE In vivo optical imaging can delineate at the macroscopic level processes that are occurring at the cellular and molecular levels. E-selectin, a leukocyte adhesion molecule expressed on endothelium, is induced by tumor necrosis factor α (TNFα) and other cytokines involved in the pathogenesis of rheumatoid arthritis (RA). Collagen-induced arthritis (CIA) in mice is widely used to study the disease mechanisms and identify new treatments for RA. The purpose of this study was to demonstrate E-selectin-targeted fluorescence imaging in vivo in a mouse model of paw edema generated by local injection of TNFα as well as in mice with CIA. METHODS Animals with either CIA or TNFα-induced paw edema were injected with anti-E-selectin or control antibodies labeled with a DyLight 750-nm near-infrared (NIR) probe. In vivo imaging studies were undertaken using an NIR optical imaging system, and images were coregistered with plain radiographic images. RESULTS The mean fluorescence intensity measured over the time-course of TNFα-induced edema demonstrated a 1.97-fold increase (P<0.001) in signal in inflamed paws at 8 hours following injection of anti-E-selectin antibody, as compared to that in the isotype control. In the CIA model, a 2.34-fold increase in E-selectin-targeted signal was demonstrated (P<0.01). Furthermore, significant E-selectin-targeted signal was observed in the paws of animals immunized with collagen that did not display overt signs of arthritis. CONCLUSION E-selectin-targeted fluorescence in vivo imaging is a quantifiable method of detecting endothelial activation in arthritis and can potentially be applied to the quantification of disease and the investigation of the effects of new therapies. Importantly, this approach may also be useful for the detection of subclinical disease in RA.
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Affiliation(s)
- Luke L Gompels
- Kennedy Institute of Rheumatology, Imperial College London, London, UK.
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