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Obeidat AM, Kim SY, Burt KG, Hu B, Li J, Ishihara S, Xiao R, Miller RE, Little C, Malfait AM, Scanzello CR. A standardized approach to evaluation and reporting of synovial histopathology in two surgically induced murine models of osteoarthritis. Osteoarthritis Cartilage 2024; 32:1273-1282. [PMID: 38823432 PMCID: PMC11408105 DOI: 10.1016/j.joca.2024.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 05/17/2024] [Accepted: 05/23/2024] [Indexed: 06/03/2024]
Abstract
OBJECTIVE Synovial pathology has been linked to osteoarthritis (OA) pain in patients. Microscopic grading systems for synovial changes in human OA have been described, but a standardized approach for murine models of OA is needed. We sought to develop a reproducible approach and set of minimum recommendations for reporting of synovial histopathology in mouse models of OA. METHODS Coronal and sagittal sections from male mouse knee joints subjected to destabilization of medial meniscus (DMM) or partial meniscectomy (PMX) were collected as part of other studies. Stains included Hematoxylin and Eosin (H&E), Toluidine Blue (T-Blue), and Safranin O/Fast Green (Saf-O). Four blinded readers graded pathological features (hyperplasia, cellularity, and fibrosis) at specific anatomic locations. Inter-reader agreement of each feature score was determined. RESULTS There was acceptable to very good agreement when using 3-4 individual readers. After DMM and PMX, expected medial predominant changes in hyperplasia and cellularity were observed, with fibrosis noted at 12 weeks post-PMX. Synovial changes were consistent from section to section in the mid-joint area. When comparing stains, H&E and T-blue resulted in better agreement compared to Saf-O stain. CONCLUSIONS To account for the pathologic and anatomic variability in synovial pathology and allow for a more standardized evaluation that can be compared across studies, we recommend evaluating a minimum set of 3 pathological features at standardized anatomic areas. Further, we suggest reporting individual feature scores separately before relying on a single summed "synovitis" score. H&E or T-blue are preferred, inter-reader agreement for each feature should be considered.
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Affiliation(s)
- Alia M Obeidat
- Division of Rheumatology, Department of Internal Medicine, Rush University Medical College, Chicago, IL, United States.
| | - Sung Yeon Kim
- University of Pennsylvania School of Engineering and Applied Sciences, Philadelphia, PA 19104, United States.
| | - Kevin G Burt
- Translational Musculoskeletal Research Center, Corp. Michael J Crescenz VA Medical Center, Philadelphia, PA 19104, United States; Department of Orthopaedic Surgery, Perelman School of Medicine University of Pennsylvania, Philadelphia, PA 19104, United States.
| | - Baofeng Hu
- Translational Musculoskeletal Research Center, Corp. Michael J Crescenz VA Medical Center, Philadelphia, PA 19104, United States; Division of Rheumatology, Perelman School of Medicine University of Pennsylvania, Philadelphia, PA 19104, United States.
| | - Jun Li
- Division of Rheumatology, Department of Internal Medicine, Rush University Medical College, Chicago, IL, United States.
| | - Shingo Ishihara
- Division of Rheumatology, Department of Internal Medicine, Rush University Medical College, Chicago, IL, United States.
| | - Rui Xiao
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, United States; Department of Pediatrics Division of Biostatistics, Children's Hospital of Philadelphia, Philadelphia, PA 19104, United States.
| | - Rachel E Miller
- Division of Rheumatology, Department of Internal Medicine, Rush University Medical College, Chicago, IL, United States.
| | - Christopher Little
- Kolling Institute, Faculty of Medicine and Health, The University of Sydney, NSW 2065, Australia.
| | - Anne-Marie Malfait
- Division of Rheumatology, Department of Internal Medicine, Rush University Medical College, Chicago, IL, United States.
| | - Carla R Scanzello
- Translational Musculoskeletal Research Center, Corp. Michael J Crescenz VA Medical Center, Philadelphia, PA 19104, United States; Division of Rheumatology, Perelman School of Medicine University of Pennsylvania, Philadelphia, PA 19104, United States.
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Ningsih S, Agustini K, Kusumaningrum S, Firdausi N, Eru Wibowo A, Efendi J, Ngatinem N, Subiantoro AH, Suparjo S, Catherine C, Auni Rabbina N, Bahtiar A, Damayanti R, Lee K. Anti-inflammatory activity of the combination Ardisia humilis Vahl. and Curcuma xanthorrhiza Roxb. extract on an osteoarthritis rat model. Arch Physiol Biochem 2024:1-11. [PMID: 39324962 DOI: 10.1080/13813455.2024.2406890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 08/18/2024] [Accepted: 09/16/2024] [Indexed: 09/27/2024]
Abstract
This study aimed to evaluate the anti-inflammatory activity of the combination of Ardisia humilis Vahl. and Curcuma xanthorrhiza Roxb. (AC) extract in monosodium iodoacetate (MIA)-induced osteoarthritis (OA) rat model. AC was administered orally to OA rats (240, 480, and 960 mg/kg bw) for three weeks. The control and model groups comprised OA rats treated with diclofenac sodium and carrier, respectively. AC-treated rats exhibited a significant reduction in oedema volume compared to those of the model group (p < 0.05). Notably, AC, at 960 mg/kg bw, significantly decreased inflammatory cytokines TNF-α and IL-1β, along with matrix metalloproteinase-9 (MMP-9) levels compared to those of the model group (p < 0.05). AC's attenuation of OA progression was also observed through haematoxylin and eosin (H&E) and Safranin O-fast green analysis. A phytochemical study showed AC contained phenolic, flavonoid, curcumin, demethoxycurcumin, and bisdemethoxycurcumin compounds. This study concludes that AC alleviated OA progression through anti-inflammatory effects and depressed MMP-9 levels.
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Affiliation(s)
- Sri Ningsih
- Research Center for Pharmaceutical Ingredient and Traditional Medicine, BRIN, Banten, Indonesia
| | - Kurnia Agustini
- Research Center for Pharmaceutical Ingredient and Traditional Medicine, BRIN, Banten, Indonesia
| | - Susi Kusumaningrum
- Research Center for Pharmaceutical Ingredient and Traditional Medicine, BRIN, Banten, Indonesia
| | - Nisrina Firdausi
- Research Center for Pharmaceutical Ingredient and Traditional Medicine, BRIN, Banten, Indonesia
| | - Agung Eru Wibowo
- Research Center for Pharmaceutical Ingredient and Traditional Medicine, BRIN, Banten, Indonesia
| | - Julham Efendi
- Research Center for Pharmaceutical Ingredient and Traditional Medicine, BRIN, Banten, Indonesia
| | - Ngatinem Ngatinem
- Research Center for Pharmaceutical Ingredient and Traditional Medicine, BRIN, Banten, Indonesia
| | - Agus Himawan Subiantoro
- Research Center for Pharmaceutical Ingredient and Traditional Medicine, BRIN, Banten, Indonesia
| | - Suparjo Suparjo
- Research Center for Pharmaceutical Ingredient and Traditional Medicine, BRIN, Banten, Indonesia
| | - Catherine Catherine
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Universitas Indonesia, Kampus UI, Depok, Indonesia
| | - Nasal Auni Rabbina
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Universitas Indonesia, Kampus UI, Depok, Indonesia
| | - Anton Bahtiar
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Universitas Indonesia, Kampus UI, Depok, Indonesia
| | - Rini Damayanti
- Research Centre for Veterinary Science, BRIN, Cibinong Science Center, Bogor Regency, West Java, Indonesia
| | - KyuJong Lee
- International Biological Material Research Centre, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea
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Wakefield B, Tang J, Hutchinson JL, Kanji R, Brooks C, Grol MW, Séguin CA, Penuela S, Beier F. Pannexin 3 deletion in mice results in knee osteoarthritis and intervertebral disc degeneration after forced treadmill running. J Orthop Res 2024; 42:1696-1709. [PMID: 38499500 DOI: 10.1002/jor.25830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 11/10/2023] [Accepted: 02/26/2024] [Indexed: 03/20/2024]
Abstract
Pannexin 3 (Panx3) is a glycoprotein that forms mechanosensitive channels expressed in chondrocytes and annulus fibrosus cells of the intervertebral disc (IVD). Evidence suggests Panx3 plays contrasting roles in traumatic versus aging osteoarthritis (OA) and intervertebral disc degeneration (IDD). However, whether its deletion influences the response of joint tissue to forced use is unknown. The purpose of this study was to determine if Panx3 deletion in mice causes increased knee joint OA and IDD after forced treadmill running. Male and female wildtype (WT) and Panx3 knockout (KO) mice were randomized to either a no-exercise group (sedentary; SED) or daily forced treadmill running (forced exercise; FEX) from 24 to 30 weeks of age. Knee cartilage and IVD histopathology were evaluated by histology, while tibial secondary ossification centers were analyzed using microcomputed tomography (µCT). Both male and female Panx3 KO mice developed larger superficial defects of the tibial cartilage after forced treadmill running compared with SED WT mice. Additionally, Panx3 KO mice developed reduced bone volume, and female PANX3 KO mice had lengthening of the lateral tubercle at the intercondylar eminence. In the lower lumbar spine, both male and female Panx3 KO mice developed histopathological features of IDD after running compared to SED WT mice. These findings suggest that the combination of deleting Panx3 and forced treadmill running induces OA and causes histopathological changes associated with the degeneration of the IVDs in mice.
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Affiliation(s)
- Brent Wakefield
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada
- Western's Bone and Joint Institute, The Dr. Sandy Kirkley Centre for Musculoskeletal Research, University Hospital, London, Ontario, Canada
| | - Justin Tang
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada
- Western's Bone and Joint Institute, The Dr. Sandy Kirkley Centre for Musculoskeletal Research, University Hospital, London, Ontario, Canada
| | - Jeffrey L Hutchinson
- Western's Bone and Joint Institute, The Dr. Sandy Kirkley Centre for Musculoskeletal Research, University Hospital, London, Ontario, Canada
- Department of Physiology and Pharmacology, University of Western Ontario, London, Ontario, Canada
| | - Rehanna Kanji
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada
| | - Courtney Brooks
- Department of Physiology and Pharmacology, University of Western Ontario, London, Ontario, Canada
| | - Matthew W Grol
- Western's Bone and Joint Institute, The Dr. Sandy Kirkley Centre for Musculoskeletal Research, University Hospital, London, Ontario, Canada
- Department of Physiology and Pharmacology, University of Western Ontario, London, Ontario, Canada
| | - Cheryle A Séguin
- Western's Bone and Joint Institute, The Dr. Sandy Kirkley Centre for Musculoskeletal Research, University Hospital, London, Ontario, Canada
- Department of Physiology and Pharmacology, University of Western Ontario, London, Ontario, Canada
| | - Silvia Penuela
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ontario, Canada
- Western's Bone and Joint Institute, The Dr. Sandy Kirkley Centre for Musculoskeletal Research, University Hospital, London, Ontario, Canada
| | - Frank Beier
- Western's Bone and Joint Institute, The Dr. Sandy Kirkley Centre for Musculoskeletal Research, University Hospital, London, Ontario, Canada
- Department of Physiology and Pharmacology, University of Western Ontario, London, Ontario, Canada
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Xie W, Jiang S, Donat A, Knapstein PR, Albertsen LC, Kokot JL, Erdmann C, Rolvien T, Frosch KH, Baranowsky A, Keller J. Tranexamic Acid Attenuates the Progression of Posttraumatic Osteoarthritis in Mice. Am J Sports Med 2024; 52:766-778. [PMID: 38305280 PMCID: PMC10905980 DOI: 10.1177/03635465231220855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 10/25/2023] [Indexed: 02/03/2024]
Abstract
BACKGROUND Posttraumatic osteoarthritis (OA) is a common disorder associated with a high socioeconomic burden, particularly in young, physically active, and working patients. Tranexamic acid (TXA) is commonly used in orthopaedic trauma surgery as an antifibrinolytic agent to control excessive bleeding. Previous studies have reported that TXA modulates inflammation and bone cell function, both of which are dysregulated during posttraumatic OA disease progression. PURPOSE To evaluate the therapeutic effects of systemic and topical TXA treatment on the progression of posttraumatic OA in the knee of mice. STUDY DESIGN Controlled laboratory study. METHODS OA was induced via anterior cruciate ligament (ACL) transection on the right knee of female mice. Mice were treated with TXA or vehicle intraperitoneally daily or intra-articularly weekly for 4 weeks, starting on the day of surgery. Articular cartilage degeneration, synovitis, bone erosion, and osteophyte formation were scored histologically. Micro-computed tomography evaluation was conducted to measure the subchondral bone microstructure and osteophyte volume. Cartilage thickness and bone remodeling were assessed histomorphometrically. RESULTS Both systemic and topical TXA treatment significantly reduced cartilage degeneration, synovitis, and bone erosion scores and increased the ratio of hyaline to calcified cartilage thickness in posttraumatic OA. Systemic TXA reversed ACL transection-induced subchondral bone loss and osteophyte formation, whereas topical treatment had no effect. Systemic TXA decreased the number and surface area of osteoclasts, whereas those of osteoblasts were not affected. No effect of topical TXA on osteoblast or osteoclast parameters was observed. CONCLUSION Both systemic and topical TXA exerted protective effects on the progression of posttraumatic OA. Drug repurposing of TXA may, therefore, be useful for the prevention or treatment of posttraumatic OA, particularly after ACL surgery. CLINICAL RELEVANCE TXA might be beneficial in patients with posttraumatic OA of the knee.
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Affiliation(s)
- Weixin Xie
- Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Shan Jiang
- Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Antonia Donat
- Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Paul Richard Knapstein
- Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Lilly-Charlotte Albertsen
- Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Judith Luisa Kokot
- Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Cordula Erdmann
- Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Tim Rolvien
- Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Karl-Heinz Frosch
- Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Anke Baranowsky
- Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Johannes Keller
- Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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Jiang S, Xie W, Knapstein PR, Donat A, Albertsen LC, Sevecke J, Erdmann C, Appelt J, Fuchs M, Hildebrandt A, Maleitzke T, Frosch KH, Baranowsky A, Keller J. Transcript-dependent effects of the CALCA gene on the progression of post-traumatic osteoarthritis in mice. Commun Biol 2024; 7:223. [PMID: 38396204 PMCID: PMC10891124 DOI: 10.1038/s42003-024-05889-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 02/06/2024] [Indexed: 02/25/2024] Open
Abstract
Osteoarthritis represents a chronic degenerative joint disease with exceptional clinical relevance. Polymorphisms of the CALCA gene, giving rise to either a procalcitonin/calcitonin (PCT/CT) or a calcitonin gene-related peptide alpha (αCGRP) transcript by alternative splicing, were reported to be associated with the development of osteoarthritis. The objective of this study was to investigate the role of both PCT/CT and αCGRP transcripts in a mouse model of post-traumatic osteoarthritis (ptOA). WT, αCGRP-/- and CALCA-/- mice were subjected to anterior cruciate ligament transection (ACLT) to induce ptOA of the knee. Mice were sacrificed 4 and 8 weeks post-surgery, followed by micro-CT and histological evaluation. Here we show that the expression of both PCT/CT and αCGRP transcripts is induced in ptOA knees. CALCA-/- mice show increased cartilage degeneration and subchondral bone loss with elevated osteoclast numbers compared to αCGRP-/- and WT mice. Osteophyte formation is reduced to the same extent in CALCA-/- and αCGRP-/- mice compared to WT controls, while a reduced synovitis score is noticed exclusively in mice lacking CALCA. Our data show that expression of the PCT/CT transcript protects from the progression of ptOA, while αCGRP promotes osteophyte formation, suggesting that CALCA-encoded peptides may represent novel targets for the treatment of ptOA.
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Affiliation(s)
- Shan Jiang
- Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Weixin Xie
- Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Paul Richard Knapstein
- Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Antonia Donat
- Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Lilly-Charlotte Albertsen
- Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jan Sevecke
- Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Cordula Erdmann
- Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Jessika Appelt
- Berlin Institute of Health at Charité-Universitätsmedizin Berlin, Julius Wolff Institute, Berlin, Germany
| | - Melanie Fuchs
- Berlin Institute of Health at Charité-Universitätsmedizin Berlin, Julius Wolff Institute, Berlin, Germany
| | - Alexander Hildebrandt
- Berlin Institute of Health at Charité-Universitätsmedizin Berlin, Julius Wolff Institute, Berlin, Germany
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Center for Musculoskeletal Surgery, Berlin, Germany
| | - Tazio Maleitzke
- Berlin Institute of Health at Charité-Universitätsmedizin Berlin, Julius Wolff Institute, Berlin, Germany
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Center for Musculoskeletal Surgery, Berlin, Germany
- Berlin Institute of Health at Charité-Universitätsmedizin Berlin, BIH Biomedical Innovation Academy, BIH Charité Clinician Scientist Program, Berlin, Germany
- Department of Orthopaedic Surgery, Copenhagen University Hospital - Amager and Hvidovre, Hvidovre, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Karl-Heinz Frosch
- Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Department of Trauma Surgery, Orthopedics and Sports Traumatology, BG Hospital Hamburg, Hamburg, Germany
| | - Anke Baranowsky
- Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Johannes Keller
- Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
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Maatuf YH, Marco M, Unger-Gelman S, Farhat E, Zobrab A, Roy A, Kumar A, Carmon I, Reich E, Dvir-Ginzberg M. Diverse Response to Local Pharmacological Blockade of Sirt1 Cleavage in Age-Induced versus Trauma-Induced Osteoarthritis Female Mice. Biomolecules 2024; 14:81. [PMID: 38254681 PMCID: PMC10813022 DOI: 10.3390/biom14010081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 01/04/2024] [Accepted: 01/05/2024] [Indexed: 01/24/2024] Open
Abstract
Objective: Previous studies have shown that the cleavage of Sirt1 contributes to the development of osteoarthritis (OA). In fact, OA was effectively abrogated by the intra-articular (IA) administration of two compounds, one blocking Sirt1 cleavage (CA074me) and the other activating Sirt1 (SRT1720), using a post-traumatically induced model (PTOA) in young female mice. In this study, we attempted to understand if this local treatment is effective in preventing age-associated OA (AOA) progression and symptoms. Design: A group of 17-month-old female C57BL/6J mice were IA administered with CA074me and/or SRT1720 or their combination. Joint histopathological analysis and bone histomorphometry were carried out, with an assessment of knee mechanical hyperalgesia. A serum analysis for NT/CT Sirt1 was carried out along with immunohistochemistry for articular cartilage to detect p16INK4A or γH2A.X. Similarly, meniscal cartilage was monitored for Lef1 and Col1a1 deposition. The data were compared for young female mice subjected to post-traumatic OA (PTOA). Results: Similar to PTOA, combination-treated AOA exhibited improved knee hyperalgesia, yet structural improvements were undetected, corresponding to unchanged NT/CT Sirt1 serum levels. Both AOA and PTOA exhibited unchanged staining for nuclear p16INK4A or γH2A.X and lacked a correlation with OA severity. Contrarily to PTOA, the combination treatment with AOA did not exhibit a local reduction in the Lef1 and Col1 targets. Conclusions: When targeting Sirt1 cleavage, the PTOA and AOA models exhibited a similar pain response to the combination treatment; however, they displayed diverse structural outcomes for joint-related damage, related to Lef1-dependent signaling. Interestingly, nuclear p16INK4A was unaffected in both models, regardless of the treatment's effectiveness. Finally, these findings highlight the variations in the responses between two highly researched OA preclinical models, reflecting OA pathophysiology heterogeneity and variations in gender-related drug-response mechanisms.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Mona Dvir-Ginzberg
- Institute of Biomedical and Oral research, Faculty of Dental Medicine, Hebrew University of Jerusalem, P.O. Box 12272, Jerusalem 9112102, Israel; (Y.H.M.); (M.M.); (S.U.-G.); (E.F.); (A.Z.); (A.R.); (A.K.); (I.C.); (E.R.)
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Haubruck P, Heller R, Blaker CL, Clarke EC, Smith SM, Burkhardt D, Liu Y, Stoner S, Zaki S, Shu CC, Little CB. Streamlining quantitative joint-wide medial femoro-tibial histopathological scoring of mouse post-traumatic knee osteoarthritis models. Osteoarthritis Cartilage 2023; 31:1602-1611. [PMID: 37716405 DOI: 10.1016/j.joca.2023.07.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 07/03/2023] [Accepted: 07/26/2023] [Indexed: 09/18/2023]
Abstract
OBJECTIVES Histological scoring remains the gold-standard for quantifying post-traumatic osteoarthritis (ptOA) in animal models, allowing concurrent evaluation of numerous joint tissues. Available systems require scoring multiple sections/joint making analysis laborious and expensive. We investigated if a single section allowed equivalent quantitation of pathology in different joint tissues and disease stages, in three ptOA models. METHOD Male 10-12-week-old C57BL/6 mice underwent surgical medial-meniscal-destabilization, anterior-cruciate-ligament (ACL) transection, non-invasive-ACL-rupture, or served as sham-surgical, non-invasive-ACL-strain, or naïve/non-operated controls. Mice (n = 12/group) were harvested 1-, 4-, 8-, and 16-week post-intervention. Serial sagittal toluidine-blue/fast-green stained sections of the medial-femoro-tibial joint (n = 7/joint, 84 µm apart) underwent blinded scoring of 40 histology-outcomes. We evaluated agreement between single-slide versus entire slide-set maximum or median scores (weighted-kappa), and sensitivity/specificity of single-slide versus median/maximum to detect OA pathology. RESULTS A single optimal mid-sagittal section showed excellent agreement with median (weighted-kappa 0.960) and maximum (weighted-kappa 0.926) scores. Agreement for individual histology-outcomes was high with only 19/240 median and 15/240 maximum scores having a weighted-kappa ≤0.4, the majority of these (16/19 and 11/15) in control groups. Statistically-significant histology-outcome differences between ptOA models and their controls detected with the entire slide-set were reliably reproduced using a single slide (sensitivity >93.15%, specificity >93.10%). The majority of false-negatives with single-slide scoring were meniscal and subchondral bone histology-outcomes (89%) and occurred in weeks 1-4 post-injury (84%). CONCLUSION A single mid-sagittal slide reduced the time needed to score diverse histopathological changes by 87% without compromising the sensitivity or specificity of the analysis, across a variety of ptOA models and time-points.
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Affiliation(s)
- Patrick Haubruck
- Centre for Orthopaedics, Trauma Surgery and Spinal Cord Injury, Trauma and Reconstructive Surgery, Heidelberg University Hospital, D-69118 Heidelberg, Germany; Raymond Purves Bone and Joint Research Laboratory, Kolling Institute, Institute of Bone and Joint Research, Faculty of Medicine and Health University of Sydney, Royal North Shore Hospital, St. Leonards, New South Wales 2065, Australia
| | - Raban Heller
- Centre for Orthopaedics, Trauma Surgery and Spinal Cord Injury, Trauma and Reconstructive Surgery, Heidelberg University Hospital, D-69118 Heidelberg, Germany; Institute for Experimental Endocrinology, Charité - Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt Universität zu Berlin, Berlin Institute of Health, Augustenburger Platz 1, 13353 Berlin, Germany; Bundeswehr Hospital Berlin, Clinic of Traumatology and Orthopaedics, D-10115 Berlin, Germany
| | - Carina L Blaker
- Raymond Purves Bone and Joint Research Laboratory, Kolling Institute, Institute of Bone and Joint Research, Faculty of Medicine and Health University of Sydney, Royal North Shore Hospital, St. Leonards, New South Wales 2065, Australia; Murray Maxwell Biomechanics Laboratory, Kolling Institute, Institute of Bone and Joint Research, Faculty of Medicine and Health University of Sydney, Royal North Shore Hospital, St. Leonards, New South Wales 2065, Australia
| | - Elizabeth C Clarke
- Murray Maxwell Biomechanics Laboratory, Kolling Institute, Institute of Bone and Joint Research, Faculty of Medicine and Health University of Sydney, Royal North Shore Hospital, St. Leonards, New South Wales 2065, Australia
| | - Susan M Smith
- Raymond Purves Bone and Joint Research Laboratory, Kolling Institute, Institute of Bone and Joint Research, Faculty of Medicine and Health University of Sydney, Royal North Shore Hospital, St. Leonards, New South Wales 2065, Australia
| | - Daniel Burkhardt
- Raymond Purves Bone and Joint Research Laboratory, Kolling Institute, Institute of Bone and Joint Research, Faculty of Medicine and Health University of Sydney, Royal North Shore Hospital, St. Leonards, New South Wales 2065, Australia
| | - Yolanda Liu
- Raymond Purves Bone and Joint Research Laboratory, Kolling Institute, Institute of Bone and Joint Research, Faculty of Medicine and Health University of Sydney, Royal North Shore Hospital, St. Leonards, New South Wales 2065, Australia
| | - Shihani Stoner
- Raymond Purves Bone and Joint Research Laboratory, Kolling Institute, Institute of Bone and Joint Research, Faculty of Medicine and Health University of Sydney, Royal North Shore Hospital, St. Leonards, New South Wales 2065, Australia
| | - Sanaa Zaki
- Raymond Purves Bone and Joint Research Laboratory, Kolling Institute, Institute of Bone and Joint Research, Faculty of Medicine and Health University of Sydney, Royal North Shore Hospital, St. Leonards, New South Wales 2065, Australia; Sydney School of Veterinary Science, Faculty of Science, University of Sydney, Australia
| | - Cindy C Shu
- Raymond Purves Bone and Joint Research Laboratory, Kolling Institute, Institute of Bone and Joint Research, Faculty of Medicine and Health University of Sydney, Royal North Shore Hospital, St. Leonards, New South Wales 2065, Australia
| | - Christopher B Little
- Raymond Purves Bone and Joint Research Laboratory, Kolling Institute, Institute of Bone and Joint Research, Faculty of Medicine and Health University of Sydney, Royal North Shore Hospital, St. Leonards, New South Wales 2065, Australia.
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8
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Collins JA, Kim CJ, Coleman A, Little A, Perez MM, Clarke EJ, Diekman B, Peffers MJ, Chubinskaya S, Tomlinson RE, Freeman TA, Loeser RF. Cartilage-specific Sirt6 deficiency represses IGF-1 and enhances osteoarthritis severity in mice. Ann Rheum Dis 2023; 82:1464-1473. [PMID: 37550003 PMCID: PMC10579179 DOI: 10.1136/ard-2023-224385] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 07/22/2023] [Indexed: 08/09/2023]
Abstract
OBJECTIVES Prior studies noted that chondrocyte SIRT6 activity is repressed in older chondrocytes rendering cells susceptible to catabolic signalling events implicated in osteoarthritis (OA). This study aimed to define the effect of Sirt6 deficiency on the development of post-traumatic and age-associated OA in mice. METHODS Male cartilage-specific Sirt6-deficient mice and Sirt6 intact controls underwent destabilisation of the medial meniscus (DMM) or sham surgery at 16 weeks of age and OA severity was analysed at 6 and 10 weeks postsurgery. Age-associated OA was assessed in mice aged 12 and 18 months of age. OA severity was analysed by micro-CT, histomorphometry and scoring of articular cartilage structure, toluidine blue staining and osteophyte formation. SIRT6-regulated pathways were analysed in human chondrocytes by RNA-sequencing, qRT-PCR and immunoblotting. RESULTS Sirt6-deficient mice displayed enhanced DMM-induced OA severity and accelerated age-associated OA when compared with controls, characterised by increased cartilage damage, osteophyte formation and subchondral bone sclerosis. In chondrocytes, RNA-sequencing revealed that SIRT6 depletion significantly repressed cartilage extracellular matrix (eg, COL2A1) and anabolic growth factor (eg, insulin-like growth factor-1 (IGF-1)) gene expression. Gain-of-function and loss-of-function studies in chondrocytes demonstrated that SIRT6 depletion attenuated, whereas adenoviral overexpression or MDL-800-induced SIRT6 activation promoted IGF-1 signalling by increasing Aktser473 phosphorylation. CONCLUSIONS SIRT6 deficiency increases post-traumatic and age-associated OA severity in vivo. SIRT6 profoundly regulated the pro-anabolic and pro-survival IGF-1/Akt signalling pathway and suggests that preserving the SIRT6/IGF-1/Akt axis may be necessary to protect cartilage from injury-associated or age-associated OA. Targeted therapies aimed at increasing SIRT6 function could represent a novel strategy to slow or stop OA.
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Affiliation(s)
- John A Collins
- Department of Orthopaedic Surgery, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
- Department of Medicine, Division of Rheumatology, Allergy and Immunology and the Thurston Arthritis Research Center, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - C James Kim
- Department of Orthopaedic Surgery, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Ashley Coleman
- Department of Orthopaedic Surgery, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Abreah Little
- Department of Orthopaedic Surgery, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Matheus M Perez
- Department of Orthopaedic Surgery, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Emily J Clarke
- Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, UK
| | - Brian Diekman
- Department of Medicine, Division of Rheumatology, Allergy and Immunology and the Thurston Arthritis Research Center, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Mandy J Peffers
- Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, UK
| | - Susanna Chubinskaya
- Department of Pediatrics, Rush University Medical Center, Chicago, Illinois, USA
| | - Ryan E Tomlinson
- Department of Orthopaedic Surgery, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Theresa A Freeman
- Department of Orthopaedic Surgery, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Richard F Loeser
- Department of Medicine, Division of Rheumatology, Allergy and Immunology and the Thurston Arthritis Research Center, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
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9
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Obeidat AM, Kim SY, Burt KG, Hu B, Li J, Ishihara S, Xiao R, Miller RE, Little C, Malfait AM, Scanzello CR. Recommendations For a Standardized Approach to Histopathologic Evaluation of Synovial Membrane in Murine Models of Experimental Osteoarthritis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.10.14.562259. [PMID: 37904981 PMCID: PMC10614774 DOI: 10.1101/2023.10.14.562259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
Background Synovial pathology has been linked to osteoarthritis (OA) pain in patients. Microscopic grading systems for synovial changes in human OA have been described, but a standardized approach for murine models of OA is needed. We sought to develop a reproducible approach and set of minimum recommendations for synovial histopathology in mouse models of OA. Methods Coronal and sagittal sections from male mouse knee joints subjected to destabilization of medial meniscus (DMM) or partial meniscectomy (PMX) were collected as part of other studies. Stains included Hematoxylin and Eosin (H&E), Toluidine Blue (T-Blue) and Safranin O/Fast Green (Saf-O). Four blinded readers graded pathological features (hyperplasia, cellularity, and fibrosis) at specific anatomic locations in the medial and lateral compartments. Inter-reader reliability of each feature was determined. Results There was acceptable to very good agreement between raters. After DMM, increased hyperplasia and cellularity and a trend towards increased fibrosis were observed 6 weeks after DMM in the medial locations, and persisted up to 16 weeks. In the PMX model, cellularity and hyperplasia were evident in both medial and lateral compartments while fibrotic changes were largely seen on the medial side. Synovial changes were consistent from section to section in the mid-joint area mice. H&E, T-blue, and Saf-O stains resulted in comparable reliability. Conclusions To allow for a standard evaluation that can be implemented and compared across labs and studies, we recommend using 3 readers to evaluate a minimum set of 3 pathological features at standardized anatomic areas. Pre-defining areas to be scored, and reliability for each pathologic feature should be considered.
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Affiliation(s)
- Alia M Obeidat
- Division of Rheumatology, Department of Internal Medicine, Rush University Medical College, Chicago IL
| | - Sung Yeon Kim
- University of Pennsylvania School of Engineering and Applied Sciences, Philadelphia PA 19104
| | - Kevin G Burt
- Translational Musculoskeletal Research Center, Corp. Michael J Crescenz VA Medical Center, Philadelphia PA 19104
- Department of Orthopaedic Surgery, Perelman School of Medicine University of Pennsylvania, Philadelphia, PA 19104
| | - Baofeng Hu
- Translational Musculoskeletal Research Center, Corp. Michael J Crescenz VA Medical Center, Philadelphia PA 19104
- Division of Rheumatology, Perelman School of Medicine University of Pennsylvania, Philadelphia, PA 19104
| | - Jun Li
- Division of Rheumatology, Department of Internal Medicine, Rush University Medical College, Chicago IL
| | - Shingo Ishihara
- Division of Rheumatology, Department of Internal Medicine, Rush University Medical College, Chicago IL
| | - Rui Xiao
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104
- Department of Pediatrics Division of Biostatistics, Children's Hospital of Philadelphia, Philadelphia, PA 19104
| | - Rachel E Miller
- Division of Rheumatology, Department of Internal Medicine, Rush University Medical College, Chicago IL
| | - Christopher Little
- Kolling Institute, Faculty of Medicine and Health, The University of Sydney, NSW, 2065, Australia
| | - Anne-Marie Malfait
- Division of Rheumatology, Department of Internal Medicine, Rush University Medical College, Chicago IL
| | - Carla R Scanzello
- Translational Musculoskeletal Research Center, Corp. Michael J Crescenz VA Medical Center, Philadelphia PA 19104
- Division of Rheumatology, Perelman School of Medicine University of Pennsylvania, Philadelphia, PA 19104
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10
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Grote CW, Mackay MJ, Lu Q, Liu X, Meyer AR, Wang J. A whole-joint histopathologic grading system for murine knee osteoarthritis. J Orthop Res 2023; 41:1407-1418. [PMID: 36370134 PMCID: PMC10175513 DOI: 10.1002/jor.25482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 10/27/2022] [Accepted: 11/07/2022] [Indexed: 11/13/2022]
Abstract
This study aims to develop a comprehensive and easily executable histopathologic grading scheme for murine knee osteoarthritis (OA) using specific scoring criteria for both cartilage and periarticular changes, which may overcome important limitations of the existing grading systems. The new grading scheme was developed based on mouse knee OA models with observation periods up to 24 months of age (spontaneous OA) or 24-week post-injury (posttraumatic OA). Semi-quantitative assessments of the histopathologic OA changes were applied to all four quadrants per femorotibial joint for 50 joints (200 quadrants) using specific scoring criteria rather than mild to severe grades. Scoring elements per quadrant were as follows: cartilage lesion (0-7), osteophyte (0-3), subchondral bone change (0-3), synovitis (0-3), and ectopic periarticular soft-tissue chondrogenesis and ossification (0-3). The new histopathologic grading scheme had high intra- and interobserver reproducibility (correlation coefficients r > 0.95) across experienced and novice observers. Sensitivity and reliability analyses confirmed the ability of the new scheme to detect minimal but significant OA progression (p < 0.01) within a 2-week interval and to accurately identify tissue- and quadrant-specific OA severity within the joints. In conclusion, this study presents the first whole-joint histopathologic grading scheme for murine knee OA that covers all-stage osteoarthritic changes in all major joint tissues, including periarticular soft-tissue ossification that is not included in any of the existing OA grading systems. This reproducible scheme is easy to execute and sensitive to minimal OA progression without using computer software, suitable for quick OA severity assessments of the entire femorotibial joint.
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Affiliation(s)
- Caleb W. Grote
- Harrington Laboratory for Molecular Orthopedics, Department of Orthopedic Surgery, University of Kansas Medical Center, Kansas City, KS, USA
| | - Matthew J. Mackay
- Harrington Laboratory for Molecular Orthopedics, Department of Orthopedic Surgery, University of Kansas Medical Center, Kansas City, KS, USA
| | - Qinghua Lu
- Harrington Laboratory for Molecular Orthopedics, Department of Orthopedic Surgery, University of Kansas Medical Center, Kansas City, KS, USA
| | - Xiangliang Liu
- Harrington Laboratory for Molecular Orthopedics, Department of Orthopedic Surgery, University of Kansas Medical Center, Kansas City, KS, USA
| | - Anders R. Meyer
- Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, KS, USA
| | - Jinxi Wang
- Harrington Laboratory for Molecular Orthopedics, Department of Orthopedic Surgery, University of Kansas Medical Center, Kansas City, KS, USA
- Department of Biochemistry & Molecular Biology, University of Kansas Medical Center, Kansas City, KS, USA
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11
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Willcockson H, Ozkan H, Valdés-Fernández J, Arbeeva L, Mucahit E, Musawwir L, Hooper LB, Granero-Moltó F, Prósper F, Longobardi L. CC-Chemokine Receptor-2 Expression in Osteoblasts Contributes to Cartilage and Bone Damage during Post-Traumatic Osteoarthritis. Biomolecules 2023; 13:891. [PMID: 37371471 PMCID: PMC10296290 DOI: 10.3390/biom13060891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 05/09/2023] [Accepted: 05/16/2023] [Indexed: 06/29/2023] Open
Abstract
In osteoarthritis (OA), bone changes are radiological hallmarks and are considered important for disease progression. The C-C chemokine receptor-2 (CCR2) has been shown to play an important role in bone physiology. In this study, we investigated whether Ccr2 osteoblast-specific inactivation at different times during post-traumatic OA (PTOA) progression improves joint structures, bone parameters, and pain. We used a tamoxifen-inducible Ccr2 inactivation in Collagen1α-expressing cells to obtain osteoblasts lacking Ccr2 (CCR2-Col1αKO). We stimulated PTOA changes in CCR2-Col1αKO and CCR2+/+ mice using the destabilization of the meniscus model (DMM), inducing recombination before or after DMM (early- vs. late-inactivation). Joint damage was evaluated at two, four, eight, and twelve weeks post-DMM using multiple scores: articular-cartilage structure (ACS), Safranin-O, histomorphometry, osteophyte size/maturity, subchondral bone thickness and synovial hyperplasia. Spontaneous and evoked pain were assessed for up to 20 weeks. We found that early osteoblast-Ccr2 inactivation delayed articular cartilage damage and matrix degeneration compared to CCR2+/+, as well as DMM-induced bone thickness. Osteophyte formation and maturation were only minimally affected. Late Collagen1α-Ccr2 deletion led to less evident improvements. Osteoblast-Ccr2 deletion also improved static measures of pain, while evoked pain did not change. Our study demonstrates that Ccr2 expression in osteoblasts contributes to PTOA disease progression and pain by affecting both cartilage and bone tissues.
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Affiliation(s)
- Helen Willcockson
- Division of Rheumatology, Allergy and Immunology, University of North Carolina at Chapel Hill, 3300 Thurston Bldg, Campus Box 7280, Chapel Hill, NC 27599, USA; (H.W.); (H.O.); (L.A.); (E.M.); (L.M.); (L.B.H.)
| | - Huseyin Ozkan
- Division of Rheumatology, Allergy and Immunology, University of North Carolina at Chapel Hill, 3300 Thurston Bldg, Campus Box 7280, Chapel Hill, NC 27599, USA; (H.W.); (H.O.); (L.A.); (E.M.); (L.M.); (L.B.H.)
| | - José Valdés-Fernández
- Program of Regenerative Medicine, Center for Applied Medical Research (CIMA), Universidad de Navarra, 31008 Pamplona, Spain; (J.V.-F.); (F.G.-M.); (F.P.)
| | - Liubov Arbeeva
- Division of Rheumatology, Allergy and Immunology, University of North Carolina at Chapel Hill, 3300 Thurston Bldg, Campus Box 7280, Chapel Hill, NC 27599, USA; (H.W.); (H.O.); (L.A.); (E.M.); (L.M.); (L.B.H.)
| | - Esra Mucahit
- Division of Rheumatology, Allergy and Immunology, University of North Carolina at Chapel Hill, 3300 Thurston Bldg, Campus Box 7280, Chapel Hill, NC 27599, USA; (H.W.); (H.O.); (L.A.); (E.M.); (L.M.); (L.B.H.)
| | - Layla Musawwir
- Division of Rheumatology, Allergy and Immunology, University of North Carolina at Chapel Hill, 3300 Thurston Bldg, Campus Box 7280, Chapel Hill, NC 27599, USA; (H.W.); (H.O.); (L.A.); (E.M.); (L.M.); (L.B.H.)
| | - Lola B. Hooper
- Division of Rheumatology, Allergy and Immunology, University of North Carolina at Chapel Hill, 3300 Thurston Bldg, Campus Box 7280, Chapel Hill, NC 27599, USA; (H.W.); (H.O.); (L.A.); (E.M.); (L.M.); (L.B.H.)
| | - Froilán Granero-Moltó
- Program of Regenerative Medicine, Center for Applied Medical Research (CIMA), Universidad de Navarra, 31008 Pamplona, Spain; (J.V.-F.); (F.G.-M.); (F.P.)
- Department of Orthopedic Surgery and Traumatology, Clínica Universidad de Navarra, 31008 Pamplona, Spain
- Instituto de Investigacion Sanitaria de Navarra (IdiSNA), 31008 Pamplona, Spain
| | - Felipe Prósper
- Program of Regenerative Medicine, Center for Applied Medical Research (CIMA), Universidad de Navarra, 31008 Pamplona, Spain; (J.V.-F.); (F.G.-M.); (F.P.)
- Instituto de Investigacion Sanitaria de Navarra (IdiSNA), 31008 Pamplona, Spain
- Department of Hematology and Cell Therapy and CCUN, Clínica Universidad de Navarra, 31008 Pamplona, Spain
- CIBERONC, 28029 Madrid, Spain
- Program of Hemato-Oncology, Center for Applied Medical Research (CIMA), Universidad de Navarra, 31008 Pamplona, Spain
| | - Lara Longobardi
- Division of Rheumatology, Allergy and Immunology, University of North Carolina at Chapel Hill, 3300 Thurston Bldg, Campus Box 7280, Chapel Hill, NC 27599, USA; (H.W.); (H.O.); (L.A.); (E.M.); (L.M.); (L.B.H.)
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12
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Liu Z, Hui Mingalone CK, Gnanatheepam E, Hollander JM, Zhang Y, Meng J, Zeng L, Georgakoudi I. Label-free, multi-parametric assessments of cell metabolism and matrix remodeling within human and early-stage murine osteoarthritic articular cartilage. Commun Biol 2023; 6:405. [PMID: 37055483 PMCID: PMC10102009 DOI: 10.1038/s42003-023-04738-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Accepted: 03/21/2023] [Indexed: 04/15/2023] Open
Abstract
Osteoarthritis (OA) is characterized by the progressive deterioration of articular cartilage, involving complicated cell-matrix interactions. Systematic investigations of dynamic cellular and matrix changes during OA progression are lacking. In this study, we use label-free two-photon excited fluorescence (TPEF) and second harmonic generation (SHG) imaging to assess cellular and extracellular matrix features of murine articular cartilage during several time points at early stages of OA development following destabilization of medial meniscus surgery. We detect significant changes in the organization of collagen fibers and crosslink-associated fluorescence of the superficial zone as early as one week following surgery. Such changes become significant within the deeper transitional and radial zones at later time-points, highlighting the importance of high spatial resolution. Cellular metabolic changes exhibit a highly dynamic behavior, and indicate metabolic reprogramming from enhanced oxidative phosphorylation to enhanced glycolysis or fatty acid oxidation over the ten-week observation period. The optical metabolic and matrix changes detected within this mouse model are consistent with differences identified in excised human cartilage specimens from OA and healthy cartilage specimens. Thus, our studies reveal important cell-matrix interactions at the onset of OA that may enable improved understanding of OA development and identification of new potential treatment targets.
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Affiliation(s)
- Zhiyi Liu
- Department of Biomedical Engineering, Tufts University, Medford, MA, 02155, USA
- State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering; International Research Center for Advanced Photonics, Zhejiang University, Hangzhou, Zhejiang, 310027, China
- Intelligent Optics & Photonics Research Center, Jiaxing Research Institute, Zhejiang University, Jiaxing, Zhejiang, 314000, China
| | - Carrie K Hui Mingalone
- Program in Cell, Molecular, and Developmental Biology, Graduate School of Biomedical Sciences, Tufts University, Boston, MA, 02111, USA
| | | | - Judith M Hollander
- Program in Cell, Molecular, and Developmental Biology, Graduate School of Biomedical Sciences, Tufts University, Boston, MA, 02111, USA
| | - Yang Zhang
- Department of Biomedical Engineering, Tufts University, Medford, MA, 02155, USA
| | - Jia Meng
- State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou, Zhejiang, 310027, China
| | - Li Zeng
- Program in Cell, Molecular, and Developmental Biology, Graduate School of Biomedical Sciences, Tufts University, Boston, MA, 02111, USA
- Department of Immunology, Tufts University School of Medicine, Boston, MA, 02111, USA
- Department of Orthopaedics, Tufts Medical Center, Boston, MA, 02111, USA
| | - Irene Georgakoudi
- Department of Biomedical Engineering, Tufts University, Medford, MA, 02155, USA.
- Program in Cell, Molecular, and Developmental Biology, Graduate School of Biomedical Sciences, Tufts University, Boston, MA, 02111, USA.
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13
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Ozkan H, Di Francesco M, Willcockson H, Valdés-Fernández J, Di Francesco V, Granero-Moltó F, Prósper F, Decuzzi P, Longobardi L. Sustained inhibition of CC-chemokine receptor-2 via intraarticular deposition of polymeric microplates in post-traumatic osteoarthritis. Drug Deliv Transl Res 2023; 13:689-701. [PMID: 36109442 PMCID: PMC9794532 DOI: 10.1007/s13346-022-01235-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/31/2022] [Indexed: 12/31/2022]
Abstract
Posttraumatic osteoarthritis (PTOA) is mostly treated via corticosteroid administration, and total joint arthroplasty continues to be the sole effective intervention in severe conditions. To assess the therapeutic potential of CCR2 targeting in PTOA, we used biodegradable microplates (µPLs) to achieve a slow and sustained intraarticular release of the CCR2 inhibitor RS504393 into injured knees and followed joint damage during disease progression. RS504393-loaded µPLs (RS-µPLs) were fabricated via a template-replica molding technique. A mixture of poly(lactic-co-glycolic acid) (PLGA) and RS504393 was deposited into 20 × 10 μm (length × height) wells in a polyvinyl alcohol (PVA) square-patterned template. After physicochemical and toxicological characterizations, the RS504393 release profile from µPL was assessed in PBS buffer. C57BL/6 J male mice were subjected to destabilization of the medial meniscus (DMM)/sham surgery, and RS-µPLs (1 mg/kg) were administered intraarticularly 1 week postsurgery. Administrations were repeated at 4 and 7 weeks post-DMM. Drug free-µPLs (DF-µPLs) and saline injections were performed as controls. Mice were euthanized at 4 and 10 weeks post-DMM, corresponding to the early and severe PTOA stages, respectively. Knees were evaluated for cartilage structure score (ACS, H&E), matrix loss (safranin O score), osteophyte formation and maturation from cartilage to bone (cartilage quantification), and subchondral plate thickness. The RS-µPL architecture ensured the sustained release of CCR2 inhibitors over several weeks, with ~ 20% of RS504393 still available at 21 days. This prolonged release improved cartilage structure and reduced bone damage and synovial hyperplasia at both PTOA stages. Extracellular matrix loss was also attenuated, although with less efficacy. The results indicate that local sustained delivery is needed to optimize CCR2-targeted therapies.
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Affiliation(s)
- Huseyin Ozkan
- Division of Rheumatology, Allergy and Immunology and the Thurston Arthritis Research Center, University of North Carolina-, Chapel Hill, 3300 Thurston Bowels Bldg, Campus, Box 7280, Chapel Hill, NC 27599 USA
| | - Martina Di Francesco
- Laboratory of Nanotechnology for Precision Medicine, Fondazione Istituto Italiano Di Tecnologia, Genoa, Italy
| | - Helen Willcockson
- Division of Rheumatology, Allergy and Immunology and the Thurston Arthritis Research Center, University of North Carolina-, Chapel Hill, 3300 Thurston Bowels Bldg, Campus, Box 7280, Chapel Hill, NC 27599 USA
| | - José Valdés-Fernández
- Division of Rheumatology, Allergy and Immunology and the Thurston Arthritis Research Center, University of North Carolina-, Chapel Hill, 3300 Thurston Bowels Bldg, Campus, Box 7280, Chapel Hill, NC 27599 USA ,Cell Therapy Area, Clínica Universidad de Navarra, Pamplona, Spain
| | - Valentina Di Francesco
- Laboratory of Nanotechnology for Precision Medicine, Fondazione Istituto Italiano Di Tecnologia, Genoa, Italy
| | - Froilán Granero-Moltó
- Cell Therapy Area, Clínica Universidad de Navarra, Pamplona, Spain ,Department of Orthopedic Surgery and Traumatology, Clínica Universidad de Navarra, Pamplona, Spain ,Program of Regenerative Medicine, Center for Applied Medical Research (CIMA), Universidad de Navarra, Pamplona, Spain ,Instituto de Investigacion Sanitaria de Navarra (IdiSNA), Pamplona, Spain
| | - Felipe Prósper
- Cell Therapy Area, Clínica Universidad de Navarra, Pamplona, Spain ,Program of Regenerative Medicine, Center for Applied Medical Research (CIMA), Universidad de Navarra, Pamplona, Spain ,Instituto de Investigacion Sanitaria de Navarra (IdiSNA), Pamplona, Spain ,Department of Hematology, Clínica Universidad de Navarra, Pamplona, Spain ,Program of Hemato-Oncology, Center for Applied Medical Research (CIMA), Universidad de Navarra, Pamplona, Spain
| | - Paolo Decuzzi
- Laboratory of Nanotechnology for Precision Medicine, Fondazione Istituto Italiano Di Tecnologia, Genoa, Italy
| | - Lara Longobardi
- Division of Rheumatology, Allergy and Immunology and the Thurston Arthritis Research Center, University of North Carolina-, Chapel Hill, 3300 Thurston Bowels Bldg, Campus, Box 7280, Chapel Hill, NC, 27599, USA.
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14
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Kim J, Lee CG, Hwang S, Yun SH, Uprety LP, Oh KI, Singh S, Yoo J, Jeong H, Yong Y, Yeo S, Park E, Jeong SY. Anti-Osteoarthritic Effects of Prunella Vulgaris and Gentiana Lutea In Vitro and In Vivo. Antioxidants (Basel) 2022; 12:antiox12010047. [PMID: 36670908 PMCID: PMC9854930 DOI: 10.3390/antiox12010047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/15/2022] [Accepted: 12/19/2022] [Indexed: 12/29/2022] Open
Abstract
Osteoarthritis (OA) is the progressive destruction of articular cartilage with severe symptoms, including pain and stiffness. We investigated the anti-osteoarthritic effects of Prunella vulgaris (PV) and Gentiana lutea (GL) extract in primary cultured chondrocytes RAW 264.7 cells in vitro and destabilization of the medial meniscus (DMM)-induced OA mice in vivo. Primary chondrocytes were induced with IL-1β, and RAW 264.7 cells were treated with LPS and co-incubated with either individual extracts of PV and GL or different ratios of PV and GL mixture. For the OA animal model, the medial meniscus (DMM) was destabilized in 9-week-old male C57BL/6 mice. Treatment of individual PV and GL and combination of PV and GL extracts inhibited the mRNA expression level of COX2 in chondrocytes and RAW 264.7 cells. The optimized inhibitory effect was attained with a PV and GL combination at an 8:2 ratio (PG) without cytotoxic effects. PG extracts prevented the expression of catabolic factors (COX2, Mmp3, Mmp9, and Mmp13) and inflammatory mediator levels (PGE2 and collagenase). In addition, PG decreased subchondral sclerosis and increased BMD in the subchondral region of DMM-induced OA mice with protection of articular cartilage destruction by inhibiting inflammatory processes. This study suggests that PG may be an alternative medicinal herb for treatment of OA.
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Affiliation(s)
- Jeonghyun Kim
- Department of Medical Genetics, Ajou University School of Medicine, Suwon 16499, Republic of Korea
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon 16499, Republic of Korea
| | - Chang-Gun Lee
- Department of Medical Genetics, Ajou University School of Medicine, Suwon 16499, Republic of Korea
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon 16499, Republic of Korea
- AI-Superconvergence KIURI Translational Research Center, Ajou University School of Medicine, Suwon 16499, Republic of Korea
| | - Seokjin Hwang
- Department of Medical Genetics, Ajou University School of Medicine, Suwon 16499, Republic of Korea
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon 16499, Republic of Korea
| | - Seung-Hee Yun
- Department of Medical Genetics, Ajou University School of Medicine, Suwon 16499, Republic of Korea
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon 16499, Republic of Korea
| | - Laxmi Prasad Uprety
- Department of Medical Genetics, Ajou University School of Medicine, Suwon 16499, Republic of Korea
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon 16499, Republic of Korea
| | - Kang-Il Oh
- Department of Medical Genetics, Ajou University School of Medicine, Suwon 16499, Republic of Korea
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon 16499, Republic of Korea
| | - Shivani Singh
- Department of Medical Genetics, Ajou University School of Medicine, Suwon 16499, Republic of Korea
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon 16499, Republic of Korea
| | - Jisu Yoo
- Department of Medical Genetics, Ajou University School of Medicine, Suwon 16499, Republic of Korea
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon 16499, Republic of Korea
| | - Hyesoo Jeong
- Nine B Co., Ltd., Daejeon 34121, Republic of Korea
| | | | - Subin Yeo
- Nine B Co., Ltd., Daejeon 34121, Republic of Korea
| | - Eunkuk Park
- Department of Medical Genetics, Ajou University School of Medicine, Suwon 16499, Republic of Korea
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon 16499, Republic of Korea
- Correspondence: (E.P.); (S.-Y.J.); Tel.: +82-31-219-4520 (E.P. & S.-Y.J.); Fax: +82-31-219-4521 (E.P. & S.-Y.J.)
| | - Seon-Yong Jeong
- Department of Medical Genetics, Ajou University School of Medicine, Suwon 16499, Republic of Korea
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon 16499, Republic of Korea
- Nine B Co., Ltd., Daejeon 34121, Republic of Korea
- Correspondence: (E.P.); (S.-Y.J.); Tel.: +82-31-219-4520 (E.P. & S.-Y.J.); Fax: +82-31-219-4521 (E.P. & S.-Y.J.)
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15
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Willcockson H, Ozkan H, Arbeeva L, Mucahit E, Musawwir L, Longobardi L. Early ablation of Ccr2 in aggrecan-expressing cells following knee injury ameliorates joint damage and pain during post-traumatic osteoarthritis. Osteoarthritis Cartilage 2022; 30:1616-1630. [PMID: 36075514 PMCID: PMC9671864 DOI: 10.1016/j.joca.2022.08.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 08/10/2022] [Accepted: 08/26/2022] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To investigate whether Ccr2 inactivation in aggrecan-expressing cells induced before post-traumatic OA (PTOA) onset or during progression, improves joint structures, synovial thickness and pain. DESIGN We induced a Ccr2 deletion in aggrecan-expressing cells (CCR2-AggKO) in skeletally mature mice using a tamoxifen-inducible Ccr2 inactivation. We stimulated PTOA changes (destabilization of medial meniscus, DMM) in CCR2-AggKO and CCR2+/+ mice, inducing recombination before DMM or 4 wks after DMM (early-vs late-inactivation). Joint damage was evaluated 2, 4, 8, 12 wks post-DMM using multiple scores: articular-cartilage structure (ACS), Safranin-O, histomorphometry, osteophyte size/maturity, subchondral bone thickness and synovial hyperplasia. Spontaneous (incapacitance meter) and evoked pain (von-Frey filaments) were assessed up to 20 wks. RESULTS Early aggrecan-Ccr2 inactivation in CCR2-AggKO mice (N=8) resulted in improved ACS score (8-12wk, P=0.002), AC area (4-12wk, P<0.05) and Saf-O score (2wks P=0.004, 4wks P=0.02, 8-12wks P=0.002) compared to CCR2+/+. Increased subchondral bone thickness was delayed only at 2 wks and exclusively following early recombination. Osteophyte size was not affected, but osteophyte maturation (cartilage-to-bone) was delayed (4wks P=0.04; 8 wks P=0.03). Although late aggrecan-Ccr2 deletion led to some cartilage improvement, most data did not reach statistical significance; osteophyte maturity was delayed at 12wks. Early aggrecan-Ccr2 deletion led to improved pain measures of weight bearing compared to CCR2+/+ mice (N = 9, 12wks diff 0.13 [0.01, 0.26], 16wks diff 0.15 [0.05, 0.26], 20wks diff 0.23 [0.14, 0.31]). Improved mechanosensitivity in evoked pain, although less noticeable, was detected. CONCLUSIONS We demonstrated that deletion of Ccr2 in aggrecan expressing cells reduces the initiation but not progression of OA.
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Affiliation(s)
- H Willcockson
- Division of Rheumatology, Allergy and Immunology and the Thurston Arthritis Research Center, University of North Carolina-Chapel Hill, NC, USA.
| | - H Ozkan
- Division of Rheumatology, Allergy and Immunology and the Thurston Arthritis Research Center, University of North Carolina-Chapel Hill, NC, USA.
| | - L Arbeeva
- Division of Rheumatology, Allergy and Immunology and the Thurston Arthritis Research Center, University of North Carolina-Chapel Hill, NC, USA.
| | - E Mucahit
- Division of Rheumatology, Allergy and Immunology and the Thurston Arthritis Research Center, University of North Carolina-Chapel Hill, NC, USA.
| | - L Musawwir
- Division of Rheumatology, Allergy and Immunology and the Thurston Arthritis Research Center, University of North Carolina-Chapel Hill, NC, USA.
| | - L Longobardi
- Division of Rheumatology, Allergy and Immunology and the Thurston Arthritis Research Center, University of North Carolina-Chapel Hill, NC, USA.
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16
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Rios JL, Sapède D, Djouad F, Rapp AE, Lang A, Larkin J, Ladel C, Mobasheri A. Animal Models of Osteoarthritis Part 1-Preclinical Small Animal Models: Challenges and Opportunities for Drug Development. Curr Protoc 2022; 2:e596. [PMID: 36342311 DOI: 10.1002/cpz1.596] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Osteoarthritis (OA) is the most common form of arthritis and a major source of pain and disability in the adult population. There is a significant unmet medical need for the development of effective pharmacological therapies for the treatment of OA. In addition to spontaneously occurring animal models of OA, many experimental animal models have been developed to provide insights into mechanisms of pathogenesis and progression. Many of these animal models are also being used in the drug development pipeline. Here, we provide an overview of commonly used and emerging preclinical small animal models of OA and highlight the strengths and limitations of small animal models in the context of translational drug development. There is limited information in the published literature regarding the technical reliability of these small animal models and their ability to accurately predict clinical drug development outcomes. The cost and complexity of the available models however is an important consideration for pharmaceutical companies, biotechnology startups, and contract research organizations wishing to incorporate preclinical models in target validation, discovery, and development pipelines. Further considerations relevant to industry include timelines, methods of induction, the key issue of reproducibility, and appropriate outcome measures needed to objectively assess outcomes of experimental therapeutics. Preclinical small animal models are indispensable tools that will shine some light on the pathogenesis of OA and its molecular endotypes in the context of drug development. This paper will focus on small animal models used in preclinical OA research. © 2022 The Authors. Current Protocols published by Wiley Periodicals LLC.
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Affiliation(s)
- Jaqueline Lourdes Rios
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, The Netherlands
- Percuros BV, Leiden, The Netherlands
| | - Dora Sapède
- IRMB, Université de Montpellier, INSERM, Montpellier, France
| | - Farida Djouad
- IRMB, Université de Montpellier, INSERM, Montpellier, France
| | - Anna E Rapp
- Dr. Rolf M. Schwiete Research Unit for Osteoarthritis, Department of Orthopaedics (Friedrichsheim), University Hospital Frankfurt, Frankfurt am Main, Germany
| | - Annemarie Lang
- McKay Orthopaedic Research Laboratory, Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, Pennsylvania
- Charité Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Rheumatology and Clinical Immunology, Berlin, Germany
| | | | | | - Ali Mobasheri
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, The Netherlands
- Research Unit of Medical Imaging, Physics and Technology, Faculty of Medicine, University of Oulu, Oulu, Finland
- Department of Regenerative Medicine, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania
- Departments of Orthopaedics, Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht, Netherlands
- Department of Joint Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- World Health Organization Collaborating Centre for Public Health Aspects of Musculoskeletal Health and Aging, Liege, Belgium
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17
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Ottone OK, Kim C, Collins JA, Risbud MV. The cGAS-STING Pathway Affects Vertebral Bone but Does Not Promote Intervertebral Disc Cell Senescence or Degeneration. Front Immunol 2022; 13:882407. [PMID: 35769461 PMCID: PMC9235924 DOI: 10.3389/fimmu.2022.882407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 05/06/2022] [Indexed: 11/25/2022] Open
Abstract
The DNA-sensing cGAS-STING pathway promotes the senescence-associated secretory phenotype (SASP) and mediates type-I interferon inflammatory responses to foreign viral and bacterial DNA as well as self-DNA. Studies of the intervertebral disc in humans and mice demonstrate associations between aging, increased cell senescence, and disc degeneration. Herein we assessed the role of STING in SASP promotion in STING gain- (N153S) and loss-of-function mouse models. N153S mice evidenced elevated circulating levels of proinflammatory markers including IL-1β, IL-6, and TNF-α, showed elevated monocyte and macrophage abundance in the vertebral marrow, and exhibited a mild trabecular and cortical bone phenotype in caudal vertebrae. Interestingly, despite systemic inflammation, the structural integrity of the disc and knee articular joint remained intact, and cells did not show a loss of their phenotype or elevated SASP. Transcriptomic analysis of N153S tissues demonstrated an upregulated immune response by disc cells, which did not closely resemble inflammatory changes in human tissues. Interestingly, STING-/- mice also showed a mild vertebral bone phenotype, but the absence of STING did not reduce the abundance of SASP markers or improve the age-associated disc phenotype. Overall, the analyses of N153S and STING-/- mice suggest that the cGAS-STING pathway is not a major contributor to SASP induction and consequent disc aging and degeneration but may play a minor role in the maintenance of trabecular bone in the vertebrae. This work contributes to a growing body of work demonstrating that systemic inflammation is not a key driver of disc degeneration.
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Affiliation(s)
- Olivia K. Ottone
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, United States
- Graduate Program in Cell Biology and Regenerative Medicine, Jefferson College of Life Sciences, Thomas Jefferson University, Philadelphia, PA, United States
| | - Cheeho Kim
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, United States
| | - John A. Collins
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, United States
| | - Makarand V. Risbud
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA, United States
- Graduate Program in Cell Biology and Regenerative Medicine, Jefferson College of Life Sciences, Thomas Jefferson University, Philadelphia, PA, United States
- *Correspondence: Makarand V. Risbud,
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18
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Hao X, Zhang J, Shang X, Sun K, Zhou J, Liu J, Chi R, Xu T. Exercise modifies the disease-relevant gut microbial shifts in post-traumatic osteoarthritis rats. Bone Joint Res 2022; 11:214-225. [PMID: 35382556 PMCID: PMC9057523 DOI: 10.1302/2046-3758.114.bjr-2021-0192.r1] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
AIMS Post-traumatic osteoarthritis (PTOA) is a subset of osteoarthritis (OA). The gut microbiome is shown to be involved in OA. However, the effect of exercise on gut microbiome in PTOA remains elusive. METHODS A total of 18 eight-week Sprague-Dawley rats were assigned into three groups: Sham/sedentary (Sham/Sed), PTOA/sedentary (PTOA/Sed), and PTOA/treadmill-walking (PTOA/TW). PTOA model was induced by transection of the anterior cruciate ligament (ACLT) and the destabilization of the medial meniscus (DMM). Treadmill-walking (15 m/min, 30 min/d, five days/week for eight weeks) was employed in the PTOA/TW group. The response of cartilage, subchondral bone, serology, and gut microbiome and their correlations were assessed. RESULTS Eight-week treadmill-walking was effective at maintaining the integrity of cartilage-subchondral bone unit and reducing the elevated systematic inflammation factors and microbiome-derived metabolites. Furthermore, 16S ribosomal ribonucleic acid (rRNA) sequencing showed disease-relevant microbial shifts in PTOA animals, characterized by the decreased abundance of phylum TM7 and the increase of phylum Fusobacteria. At the genus level, the abundance of Lactobacillus, Turicibacter, Adlercreutzia, and Cetobacterium were increased in the PTOA animals, while the increase of Adlercreutzia and Cetobacterium was weakened as a response to exercise. The correlation analysis showed that genus Lactobacillus and Adlercreutzia were correlated to the structural OA phenotypes, while phylum Fusobacteria and genus Cetobacterium may contribute to the effects of exercise on the diminishment of serological inflammatory factors. CONCLUSION Exercise is effective at maintaining the integrity of cartilage-subchondral bone unit, and the exercise-induced modification of disease-relevant microbial shifts is potentially involved in the mechanisms of exercise-induced amelioration of PTOA. Cite this article: Bone Joint Res 2022;11(4):214-225.
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Affiliation(s)
- Xiaoxia Hao
- Department of Rehabilitation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiaming Zhang
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xingru Shang
- Department of Rehabilitation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kai Sun
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jun Zhou
- Department of Conservative Dentistry, Division of Biomaterials and Engineering, Showa University School of Dentistry, Tokyo, Japan.,School of Stomatology, Hospital of Stomatology, Tianjin Medical University, Tianjin, China
| | - Jiawei Liu
- Department of Rehabilitation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ruimin Chi
- Department of Rehabilitation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tao Xu
- Department of Rehabilitation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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19
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Wang K, Lu X, Li X, Zhang Y, Xu R, Lou Y, Wang Y, Zhang T, Qian Y. Dual protective role of velutin against articular cartilage degeneration and subchondral bone loss via the p38 signaling pathway in murine osteoarthritis. Front Endocrinol (Lausanne) 2022; 13:926934. [PMID: 35937813 PMCID: PMC9354239 DOI: 10.3389/fendo.2022.926934] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Accepted: 06/30/2022] [Indexed: 11/28/2022] Open
Abstract
Osteoarthritis (OA) is a common degenerative joint condition associated with inflammation and characterized by progressive degradation of the articular cartilage and subchondral bone loss in the early stages. Inflammation is closely associated with these two major pathophysiological changes in OA. Velutin, a flavonoid family member, reportedly exerts anti-inflammatory effects. However, the therapeutic effects of velutin in OA have not yet been characterized. In this study, we explore the effects of velutin in an OA mouse model. Histological staining and micro-CT revealed that velutin had a protective effect against cartilage degradation and subchondral bone loss in an OA mouse model generated by surgical destabilization of the medial meniscus (DMM). Additionally, velutin rescued IL-1β-induced inflammation in chondrocytes and inhibited RANKL-induced osteoclast formation and bone resorption in vitro. Mechanistically, the p38 signaling pathway was found to be implicated in the inhibitory effects of velutin. Our study reveals the dual protective effects of velutin against cartilage degradation and subchondral bone loss by inhibiting the p38 signaling pathway, thereby highlighting velutin as an alternative treatment for OA.
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Affiliation(s)
- Kelei Wang
- Department of Orthopedics, Shaoxing People’s Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), Shaoxing, China
- Department of Orthopedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Xuanyuan Lu
- Department of Orthopedics, Shaoxing People’s Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), Shaoxing, China
| | - Xinyu Li
- Department of Orthopedics, Shaoxing People’s Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), Shaoxing, China
| | - Yufeng Zhang
- Department of Orthopedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Rongjian Xu
- Department of Orthopedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yun Lou
- Department of Orthopedics, Shaoxing People’s Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), Shaoxing, China
| | - Yanben Wang
- Department of Orthopedics, Shaoxing People’s Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), Shaoxing, China
- Department of Orthopedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Tan Zhang
- Department of Orthopedics, Shaoxing People’s Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), Shaoxing, China
| | - Yu Qian
- Department of Orthopedics, Shaoxing People’s Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), Shaoxing, China
- *Correspondence: Yu Qian,
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20
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Stone AV, Loeser RF, Callahan MF, McNulty MA, Long DL, Yammani RR, Bean S, Vanderman K, Chubinskaya S, Ferguson CM. Role of the Hypoxia-Inducible Factor Pathway in Normal and Osteoarthritic Meniscus and in Mice after Destabilization of the Medial Meniscus. Cartilage 2021; 13:1442S-1455S. [PMID: 32940061 PMCID: PMC8804812 DOI: 10.1177/1947603520958143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
OBJECTIVE Meniscus injury and the hypoxia-inducible factor (HIF) pathway are independently linked to osteoarthritis pathogenesis, but the role of the meniscus HIF pathway remains unclear. We sought to identify and evaluate HIF pathway response in normal and osteoarthritic meniscus and to examine the effects of Epas1 (HIF-2α) insufficiency in mice on early osteoarthritis development. METHODS Normal and osteoarthritic human meniscus specimens were obtained and used for immunohistochemical evaluation and cell culture studies for the HIF pathway. Meniscus cells were treated with pro-inflammatory stimuli, including interleukins (IL)-1β, IL-6, transforming growth factor (TGF)-α, and fibronectin fragments (FnF). Target genes were also evaluated with HIF-1α and HIF-2α (Epas1) overexpression and knockdown. Wild-type (n = 36) and Epas1+/- (n = 30) heterozygous mice underwent destabilization of the medial meniscus (DMM) surgery and were evaluated at 2 and 4 weeks postoperatively for osteoarthritis development using histology. RESULTS HIF-1α and HIF-2α immunostaining and gene expression did not differ between normal and osteoarthritic meniscus. While pro-inflammatory stimulation significantly increased both catabolic and anabolic gene expression in the meniscus, HIF-1α and Epas1 expression levels were not significantly altered. Epas1 overexpression significantly increased Col2a1 expression. Both wild-type and Epas1+/- mice developed osteoarthritis following DMM surgery. There were no significant differences between genotypes at either time point. CONCLUSION The HIF pathway is likely not responsible for osteoarthritic changes in the human meniscus. Additionally, Epas1 insufficiency does not protect against osteoarthritis development in the mouse at early time points after DMM surgery. The HIF pathway may be more important for protection against catabolic stress.
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Affiliation(s)
- Austin V Stone
- Division of Sports Medicine, Department of Orthopaedic Surgery & Sports Medicine, University of Kentucky, Lexington, KY, USA
| | - Richard F Loeser
- Division of Rheumatology, Allergy and Immunology and the Thurston Arthritis Research Center, University of North Carolina, Chapel Hill, NC, USA
| | - Michael F Callahan
- Division of Sports Medicine, Department of Orthopaedic Surgery, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Margaret A McNulty
- Department of Anatomy, Cell Biology, & Physiology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - David L Long
- Division of Molecular Medicine, Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Raghunatha R Yammani
- Division of Molecular Medicine, Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Sara Bean
- University of Kentucky School of Medicine, Lexington, KY, USA
| | - Kadie Vanderman
- Division of Molecular Medicine, Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Susan Chubinskaya
- Department of Pediatrics, Rush University Medical Center, Chicago, IL, USA
| | - Cristin M Ferguson
- Division of Sports Medicine, Department of Orthopaedic Surgery, Wake Forest School of Medicine, Winston-Salem, NC, USA
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21
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Catheline SE, Bell RD, Oluoch LS, James MN, Escalera-Rivera K, Maynard RD, Chang ME, Dean C, Botto E, Ketz JP, Boyce BF, Zuscik MJ, Jonason JH. IKKβ-NF-κB signaling in adult chondrocytes promotes the onset of age-related osteoarthritis in mice. Sci Signal 2021; 14:eabf3535. [PMID: 34546791 DOI: 10.1126/scisignal.abf3535] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Sarah E Catheline
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA.,Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Richard D Bell
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA.,Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Luke S Oluoch
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA.,Department of Orthopaedics and Rehabilitation, University of Rochester Medical Center, Rochester, NY, USA
| | - M Nick James
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA.,Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Katherine Escalera-Rivera
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA.,Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Robert D Maynard
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA.,Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Martin E Chang
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA.,Department of Orthopaedics and Rehabilitation, University of Rochester Medical Center, Rochester, NY, USA
| | - Christopher Dean
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA.,Department of Orthopaedics and Rehabilitation, University of Rochester Medical Center, Rochester, NY, USA
| | - Elizabeth Botto
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA.,Department of Orthopaedics and Rehabilitation, University of Rochester Medical Center, Rochester, NY, USA
| | - John P Ketz
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA.,Department of Orthopaedics and Rehabilitation, University of Rochester Medical Center, Rochester, NY, USA
| | - Brendan F Boyce
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA.,Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Michael J Zuscik
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA.,Department of Orthopaedics and Rehabilitation, University of Rochester Medical Center, Rochester, NY, USA.,Colorado Program for Musculoskeletal Research, Department of Orthopedics, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Jennifer H Jonason
- Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY, USA.,Department of Orthopaedics and Rehabilitation, University of Rochester Medical Center, Rochester, NY, USA
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22
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Liu H, Rosol TJ, Sathiaseelan R, Mann SN, Stout MB, Zhu S. Cellular carbon stress is a mediator of obesity-associated osteoarthritis development. Osteoarthritis Cartilage 2021; 29:1346-1350. [PMID: 33984464 PMCID: PMC8373780 DOI: 10.1016/j.joca.2021.04.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 04/23/2021] [Accepted: 04/28/2021] [Indexed: 02/02/2023]
Abstract
OBJECTIVE 'Carbon stress' is a newly found mechanism that links obesity and dysregulated metabolism. It is defined as the cellular accumulation of metabolites during obesity post-translationally modifying metabolic proteins and decreasing their enzymatic activity. The objective of this study was to investigate if 'carbon stress' also occurs in cartilage and contributes to obesity associated OA development. METHODS We histologically evaluated for OA pathology in wild-type (WT) and hyperphagic mice (Pomc-neuron specific enhancer one deficient, PomcΔ1) that were subjected to standard chow (Chow, n = 6 for both genotypes) or high-fat feeding (HFD, n = 7 for both genotypes). Joints were stained and quantified for 'carbon stress' markers, including succinyl-lysine (SCK), malonyl-lysine (MAK), and acetyl-lysine (ACK). Lastly, we used a mouse model with deletion of Sirt5 (n = 7), which is an enzyme that removes SCK and MAK, to test if changing the abundance of 'carbon stress' would affect OA pathogenesis. RESULTS Both HFD and Pomc deficiency associated obesity induced cartilage degeneration as well as greater abundance of SCK and MAK in the cartilage. PomcΔ1-HFD mice did not have exacerbated OA pathology as compared to PomcΔ1-Chow mice. ACK was mildly increased in the obese groups comparing to WT-Chow. Sirt5-/- mice developed early-OA like phenotype at 40 weeks of age as characterized by cartilage fibrillation and more hypertrophic chondrocytes. Cartilage from Sirt5-/- mice also had increased SCK and MAK, while ACK remained unchanged comparing to WT mice. CONCLUSION Our data suggests that carbon stress also occurs in cartilage tissue during obesity and can potentially contribute to obesity-associated OA.
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Affiliation(s)
- Huanhuan Liu
- Department of Biomedical Sciences, Ohio University, OH, 45701, USA,Ohio Musculoskeletal and Neurological Institute (OMNI), Ohio University, OH, 45701, USA
| | - Thomas J. Rosol
- Department of Biomedical Sciences, Ohio University, OH, 45701, USA,Ohio Musculoskeletal and Neurological Institute (OMNI), Ohio University, OH, 45701, USA
| | - Roshini Sathiaseelan
- Department of Nutritional Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA,Oklahoma Center for Geroscience, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Shivani N. Mann
- Department of Nutritional Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA,Oklahoma Center for Geroscience, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Michael B. Stout
- Department of Nutritional Sciences, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA,Oklahoma Center for Geroscience, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Shouan Zhu
- Department of Biomedical Sciences, Ohio University, OH, 45701, USA,Ohio Musculoskeletal and Neurological Institute (OMNI), Ohio University, OH, 45701, USA,Correspondence to Shouan Zhu: Department of Biomedical Sciences, Ohio Musculoskeletal and Neurological Institute (OMNI), Ohio University, OH, 45701, USA.
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23
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Poudel SB, Dixit M, Yildirim G, Cordoba‐Chacon J, Gahete MD, Yuji I, Kirsch T, Kineman RD, Yakar S. Sexual dimorphic impact of adult-onset somatopause on life span and age-induced osteoarthritis. Aging Cell 2021; 20:e13427. [PMID: 34240807 PMCID: PMC8373322 DOI: 10.1111/acel.13427] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 04/01/2021] [Accepted: 06/02/2021] [Indexed: 12/12/2022] Open
Abstract
Osteoarthritis (OA), the most prevalent joint disease, is a major cause of disability worldwide. Growth hormone (GH) has been suggested to play significant roles in maintaining articular chondrocyte function and ultimately articular cartilage (AC) homeostasis. In humans, the age-associated decline in GH levels was hypothesized to play a role in the etiology of OA. We studied the impact of adult-onset isolated GH deficiency (AOiGHD) on the life span and skeletal integrity including the AC, in 23- to 30-month-old male and female mice on C57/BL6 genetic background. Reductions in GH during adulthood were associated with extended life span and reductions in body temperature in female mice only. However, end-of-life pathology revealed high levels of lymphomas in both sexes, independent of GH status. Skeletal characterization revealed increases in OA severity in AOiGHD mice, evidenced by AC degradation in both femur and tibia, and significantly increased osteophyte formation in AOiGHD females. AOiGHD males showed significant increases in the thickness of the synovial lining cell layer that was associated with increased markers of inflammation (IL-6, iNOS). Furthermore, male AOiGHD showed significant increases in matrix metalloproteinase-13 (MMP-13), p16, and β-galactosidase immunoreactivity in the AC as compared to controls, indicating increased cell senescence. In conclusion, while the life span of AOiGHD females increased, their health span was compromised by high-grade lymphomas and the development of severe OA. In contrast, AOiGHD males, which did not show extended life span, showed an overall low grade of lymphomas but exhibited significantly decreased health span, evidenced by increased OA severity.
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Affiliation(s)
- Sher Bahadur Poudel
- Department of Molecular PathobiologyDavid B. Kriser Dental CenterNew York University College of DentistryNew YorkNYUSA
| | - Manisha Dixit
- Department of Molecular PathobiologyDavid B. Kriser Dental CenterNew York University College of DentistryNew YorkNYUSA
| | - Gozde Yildirim
- Department of Molecular PathobiologyDavid B. Kriser Dental CenterNew York University College of DentistryNew YorkNYUSA
| | - Jose Cordoba‐Chacon
- Section of Endocrinology, Diabetes, and MetabolismDepartment of MedicineUniversity of Illinois at ChicagoChicagoILUSA
- Research and Development DivisionJesse Brown VA Medical CenterChicagoILUSA
| | - Manuel D. Gahete
- Section of Endocrinology, Diabetes, and MetabolismDepartment of MedicineUniversity of Illinois at ChicagoChicagoILUSA
- Research and Development DivisionJesse Brown VA Medical CenterChicagoILUSA
| | - Ikeno Yuji
- Barshop Institute for Longevity and Aging StudiesUTHSCSASan AntonioTXUSA
| | - Thorsten Kirsch
- Department of Orthopaedic SurgeryNYU Grossman School of MedicineNew YorkNYUSA
- Department of Biomedical EngineeringNYU Tandon School of EngineeringNew YorkNYUSA
| | - Rhonda D. Kineman
- Section of Endocrinology, Diabetes, and MetabolismDepartment of MedicineUniversity of Illinois at ChicagoChicagoILUSA
- Research and Development DivisionJesse Brown VA Medical CenterChicagoILUSA
| | - Shoshana Yakar
- Department of Molecular PathobiologyDavid B. Kriser Dental CenterNew York University College of DentistryNew YorkNYUSA
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24
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Moon PM, Shao ZY, Wambiekele G, Appleton CTG, Laird DW, Penuela S, Beier F. Global Deletion of Pannexin 3 Resulting in Accelerated Development of Aging-Induced Osteoarthritis in Mice. Arthritis Rheumatol 2021; 73:1178-1188. [PMID: 33426805 DOI: 10.1002/art.41651] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 01/07/2021] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Osteoarthritis (OA) results in pathologic changes in the joint tissue. The mechanisms driving disease progression remain largely unclear, and thus disease-modifying treatments are lacking. Pannexin 3 (Panx3) was identified as a potential mediator of cartilage degeneration in OA, and our previous study in mice indicated that deletion of the Panx3 gene delayed surgically induced cartilage degeneration. This study was undertaken to examine the role of Panx3 in other OA subtypes, particularly primary OA during aging, in a mouse model of aging-induced OA. METHODS Wild-type (WT) and Panx3-/- C57BL/6J (Black-6) mice, ages 18-24 months, were analyzed by micro-computed tomography to investigate bone mineral density and body composition. Joints were harvested from the mice, and histopathologic analysis of the joint tissue for OA development was conducted with a specific focus on changes in articular cartilage, subchondral bone, and synovial tissue. RESULTS Global loss of Panx3 in aging mice was not associated with increased mortality or changes in body composition. Mice lacking Panx3 had shorter appendicular skeletons than WT mice, but overall the body compositions appeared quite similar. Panx3 deletion dramatically accelerated cartilage degeneration and subchondral bone thickening with aging in both 18-month-old and 24-month-old mice, while promoting synovitis in 18-month-old mice. CONCLUSION These observations in a mouse model of OA suggest that Panx3 has a protective role against the development of primary aging-associated OA. It appears that Panx3 has opposing context-specific roles in joint health following traumatic injury versus that associated with aging. These data strongly suggest that there are differences in the molecular pathways driving different subtypes of OA, and therefore a detailed understanding of these pathways could directly improve strategies for OA diagnosis, therapy, and research.
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Affiliation(s)
- P M Moon
- University of Western Ontario, London, Ontario, Canada
| | - Z Y Shao
- University of Western Ontario, London, Ontario, Canada
| | - G Wambiekele
- University of Western Ontario, London, Ontario, Canada
| | | | - D W Laird
- University of Western Ontario, London, Ontario, Canada
| | - S Penuela
- University of Western Ontario, London, Ontario, Canada
| | - F Beier
- University of Western Ontario, London, Ontario, Canada
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25
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Fernández-Martín S, González-Cantalapiedra A, Permuy M, García-González M, López-Peña M, Muñoz F. Histomorphometric Quantitative Evaluation of Long-Term Risedronate Use in a Knee Osteoarthritis Rabbit Model. Front Vet Sci 2021; 8:669815. [PMID: 33969044 PMCID: PMC8100024 DOI: 10.3389/fvets.2021.669815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 03/29/2021] [Indexed: 11/13/2022] Open
Abstract
Osteoarthritis (OA) treatment is a major orthopedic challenge given that there is no ideal drug capable to reverse or stop the progression of the OA. In that regard, bisphosphonates have been proposed as potential disease-modifying drugs due to their possible chondroprotective effect related to obtaining a greater subchondral bone quality. However, their effectiveness in OA is still controversial and additionally, there is little evidence focused on their long-term effect in preclinical studies. The aim of this study was to evaluate the risedronate quantitative effect on articular and subchondral periarticular bone by histomorphometry, in an experimental rabbit model in an advanced stage of OA. Twenty-four adult New Zealand rabbits were included in the study. OA was surgically induced in one randomly chosen knee, using the contralateral as healthy control. Animals were divided into three groups (n = 8): placebo control group, sham surgery group and risedronate-treated group. After 24 weeks of treatment, cartilage and subchondral femorotibial pathology was evaluated by micro-computed tomography (micro-CT) and undecalcified histology. The research results demonstrated that the experimental animal model induced osteoarthritic changes in the operated joints, showing an increased cartilage thickness and fibrillation associated with underlying subchondral bone thinning and decreased trabecular bone quality. These changes were especially highlighted in the medial tibial compartments as a possible response to surgical instability. Regarding the trabecular analysis, significant correlations were found between 2D histomorphometry and 3D imaging micro-CT for the trabecular bone volume, trabecular separation, and the trabecular number. However, these associations were not strongly correlated, obtaining more precise measurements in the micro-CT analysis. Concerning the long-term risedronate treatment, it did not seem to have the capacity to reduce the osteoarthritic hypertrophic cartilage response and failed to diminish the superficial cartilage damage or prevent the trabecular bone loss. This study provides novel information about the quantitative effect of long-term risedronate use on synovial joint tissues.
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Affiliation(s)
- Silvia Fernández-Martín
- Anatomy, Animal Production and Veterinary Clinical Sciences Department, Veterinary Faculty, Universidade de Santiago de Compostela, Lugo, Spain
| | - Antonio González-Cantalapiedra
- Anatomy, Animal Production and Veterinary Clinical Sciences Department, Veterinary Faculty, Universidade de Santiago de Compostela, Lugo, Spain.,Ibonelab S.L., Laboratory of Biomaterials, Lugo, Spain
| | - María Permuy
- Ibonelab S.L., Laboratory of Biomaterials, Lugo, Spain
| | - Mario García-González
- Anatomy, Animal Production and Veterinary Clinical Sciences Department, Veterinary Faculty, Universidade de Santiago de Compostela, Lugo, Spain
| | - Mónica López-Peña
- Anatomy, Animal Production and Veterinary Clinical Sciences Department, Veterinary Faculty, Universidade de Santiago de Compostela, Lugo, Spain.,Ibonelab S.L., Laboratory of Biomaterials, Lugo, Spain
| | - Fernando Muñoz
- Anatomy, Animal Production and Veterinary Clinical Sciences Department, Veterinary Faculty, Universidade de Santiago de Compostela, Lugo, Spain.,Ibonelab S.L., Laboratory of Biomaterials, Lugo, Spain
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26
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Ren J, Wei W, Tan L, Yang Q, Lu Q, Ding H, Yue Y, Tian Y, Hao L, Wang M, Li J. Inhibition of regulator of G protein signaling 10, aggravates rheumatoid arthritis progression by promoting NF-κB signaling pathway. Mol Immunol 2021; 134:236-246. [PMID: 33836352 DOI: 10.1016/j.molimm.2021.03.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 02/10/2021] [Accepted: 03/18/2021] [Indexed: 02/05/2023]
Abstract
Rheumatoid arthritis (RA) is the most common inflammatory arthropathy, with evidence pointing to an immune-mediated etiology that propagates chronic inflammation. Although targeted immune therapeutics and aggressive treatment strategies have substantially improved, a complete understanding of the associated pathological mechanisms of the disease remains elusive. This study aimed at investigating whether regulator of G protein signaling 10 (RGS10) could affect rheumatoid arthritis (RA) pathology by regulating the immune response. A DBA/J1 mouse model of RA was established and evaluated for disease severity. RGS10 expression was inhibited by adeno-associated virus in vivo. Moreover, small interfering RNA was used to downregulate RGS10 expression in raw 264.7 cells in vitro. Results showed that RGS10 inhibition augmented RA severity, and attenuated the increase in expression of inflammatory factors. Furthermore, activated NF-κB signaling pathways were detected following RGS10 inhibition. These results revealed that RGS10 inhibition directly aggravated the RA pathological process by activating the NF-κB signaling pathway. Therefore, RGS10 is a promising novel therapeutic target for RA treatment with a potential clinical impact.
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Affiliation(s)
- Jie Ren
- The State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Sichuan, People's Republic of China
| | - Wei Wei
- The State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Sichuan, People's Republic of China
| | - Liangyu Tan
- The State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Sichuan, People's Republic of China
| | - Qin Yang
- The State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Sichuan, People's Republic of China
| | - Qiuyu Lu
- The State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Sichuan, People's Republic of China
| | - Handong Ding
- The State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Sichuan, People's Republic of China
| | - Yuan Yue
- The State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Sichuan, People's Republic of China
| | - Ye Tian
- The State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Sichuan, People's Republic of China
| | - Liang Hao
- The State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Sichuan, People's Republic of China
| | - Min Wang
- The State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Sichuan, People's Republic of China.
| | - Jinle Li
- The State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Sichuan, People's Republic of China.
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27
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Armstrong AR, Carlson CS, Rendahl AK, Loeser RF. Optimization of histologic grading schemes in spontaneous and surgically-induced murine models of osteoarthritis. Osteoarthritis Cartilage 2021; 29:536-546. [PMID: 33561541 PMCID: PMC8038967 DOI: 10.1016/j.joca.2021.01.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 12/28/2020] [Accepted: 01/12/2021] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To compare the Osteoarthritis Research Society International (OARSI) and Articular Cartilage Structure (ACS) grading schemes applied to multiple and single sections, along with additional histologic measures, in two mouse models of Osteoarthritis (OA). METHODS Six coronal histologic stifle joint sections were collected from 40 C57BL/6J mice, including aged mice with spontaneous OA (approximately 18 months of age; n = 15) and young (12-week-old) mice that either underwent destabilization of the medial meniscus (DMM) surgery (n = 15) or sham surgery (n = 10). Sections were evaluated with the standard OARSI (0-6) scheme, a modified OARSI scheme, the ACS (0-12) scheme, histomorphometry of cartilage and bone, and scoring of osteophytes (0-3) and synovial hyperplasia (0-3). Principal components analysis (PCA) was used to determine the features explaining the greatest variability among the sections. RESULTS The grading schemes performed similarly when applied to a single mid-coronal section or six total coronal sections per joint. OARSI grading produced similar results when applied to hematoxylin and eosin or toluidine blue-stained sections. Aged mice had higher severity scores in the LTP than DMM mice (mid-coronal OARSI grade aged = 2.3 and DMM = 1.1, p = 0.0006; ACS grade aged = 4.1 and DMM = 1.6, p = 0.0024). PCA resulted in retention of four factors that accounted for 78.4% of the total variance. Factor 1 (36.4%) included the OARSI grade, ACS grade, Toluidine blue grade, articular cartilage area and thickness and the osteophyte grade. CONCLUSIONS Grading of a single mid-coronal section using either the OARSI or ACS schemes combined with osteophyte and histomorphometric measures can consistently define OA severity in mice.
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Affiliation(s)
- A R Armstrong
- Department of Veterinary Clinical Sciences, University of Minnesota College of Veterinary Medicine, St. Paul, Minnesota, USA.
| | - C S Carlson
- Department of Veterinary Clinical Sciences, University of Minnesota College of Veterinary Medicine, St. Paul, Minnesota, USA.
| | - A K Rendahl
- Department of Veterinary and Biomedical Sciences, University of Minnesota College of Veterinary Medicine, St. Paul, Minnesota, USA.
| | - R F Loeser
- Division of Rheumatology, Allergy and Immunology and the Thurston Arthritis Research Center, University of North Carolina School of Medicine, Chapel Hill, NC, USA.
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28
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Tan L, Harper LR, Armstrong A, Carlson CS, Yammani RR. Dietary saturated fatty acid palmitate promotes cartilage lesions and activates the unfolded protein response pathway in mouse knee joints. PLoS One 2021; 16:e0247237. [PMID: 33617553 PMCID: PMC7899342 DOI: 10.1371/journal.pone.0247237] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 02/03/2021] [Indexed: 01/10/2023] Open
Abstract
Increased intake of dietary saturated fatty acids has been linked to obesity and the development of Osteoarthritis (OA). However, the mechanism by which these fats promote cartilage degradation and the development of OA is not clearly understood. Here, we report the effects of consumption of common dietary saturated and unsaturated fatty acids, palmitate and oleate, respectively, on body weight, metabolic factors, and knee articular cartilage in a mouse model of diet-induced obesity. Mice fed on a diet rich in saturated or unsaturated fatty acid gained an equal amount of weight; however, mice fed a palmitate diet, but not a control or oleate diet, exhibited more cartilage lesions and increased expression of 1) unfolded protein response (UPR)/endoplasmic reticulum (ER) stress markers including BIP, P-IRE1α, XBP1, ATF4, and CHOP; 2) apoptosis markers CC3 and C-PARP; and 3) negative cell survival regulators Nupr1 and TRB3, in knee articular cartilage. Palmitate-induced apoptosis was confirmed by TUNEL staining. Likewise, dietary palmitate was also increased the circulatory levels of classic proinflammatory cytokines, including IL-6 and TNF-α. Taken together, our results demonstrate that increased weight gain is not sufficient for the development of obesity-linked OA and suggest that dietary palmitate promotes UPR/ER stress and cartilage lesions in mouse knee joints. This study validates our previous in vitro findings and suggests that ER stress could be the critical metabolic factor contributing to the development of diet/obesity induced OA.
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Affiliation(s)
- Li Tan
- Department of Internal Medicine, Section of Molecular Medicine, Wake Forest School of Medicine, Winston-Salem, NC, United States of America
| | - Lindsey R. Harper
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, United States of America
| | - Alexandra Armstrong
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, United States of America
| | - Cathy S. Carlson
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, United States of America
| | - Raghunatha R. Yammani
- Department of Internal Medicine, Section of Molecular Medicine, Wake Forest School of Medicine, Winston-Salem, NC, United States of America
- * E-mail:
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29
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Xiao S, Lin Y, Tang Y, Lv Z, Chen L. Real-Time Quantification of Cartilage Degeneration by GAG-Targeted Cationic Nanoparticles for Efficient Therapeutic Monitoring in Living Mice. Mol Pharm 2021; 18:1444-1454. [PMID: 33538605 DOI: 10.1021/acs.molpharmaceut.0c01254] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
One of the characterizations of degenerative cartilage disease is the progressive loss of glycosaminoglycans (GAGs). The real-time imaging method to quantify GAGs is of great significance for the biochemical analysis of cartilage and diagnosis and therapeutic monitoring of cartilage degeneration in vivo. To this end, a cationic photoacoustic (PA) contrast agent, poly-l-lysine melanin nanoparticles (PLL-MNPs), specifically targeting anionic GAGs was developed in this study to investigate whether it can image cartilage degeneration. PLL-MNP assessed GAG depletion by Chondroitinase ABC in vitro rat cartilage and intact ex vivo mouse knee joint. A papain-induced cartilage degenerative mice model was used for in vivo photoacoustic imaging (PAI). Oral cartilage supplement glucosamine sulfate was intragastrically administered for mice cartilage repair and the therapeutic efficacy was monitored by PLL-MNP-enhanced PAI. Histologic findings were used to further confirm PAI results. In vitro results revealed that the PLL-MNPs not only had a high binding ability with GAGs but also sensitively monitored GAG content changes by PAI. The PA signal was gradually weakened along with the depletion of GAGs in cartilage. Particularly, PLL-MNPs depicted the cartilage structure and the distribution of GAGs was demonstrated in PA images in ex vivo joints. Compared with the normal joint, a lower signal intensity was detected from degenerative joint at 3 weeks after papain injection, suggesting an early diagnosis of cartilage lesion by PLL-MNPs. Importantly, this PA-enhanced nanoprobe was suitable for monitoring in vivo efficacy of glucosamine sulfate, which effectively blocked cartilage degradation in a high dose manner. In vivo imaging findings correlated well with histological examinations. PLL-MNPs provided sensitive visualization of cartilage degeneration and promising monitoring of therapeutic response in living subjects.
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Affiliation(s)
- Shuyi Xiao
- Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325000, P. R. China.,Department of Pharmacy, The Second Affiliated Hospital and Yuying Children's, Wenzhou 325027, P. R. China
| | - Yimu Lin
- Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325000, P. R. China
| | - Yufu Tang
- Key Laboratory of Flexible Electronics (KLOFE), Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), Nanjing 211816, P. R. China
| | - Zhuang Lv
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong 999077, P. R. China
| | - Liang Chen
- Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325000, P. R. China
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30
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Muttigi MS, Kim BJ, Choi B, Han I, Park H, Lee SH. Matrilin-3-Primed Adipose-Derived Mesenchymal Stromal Cell Spheroids Prevent Mesenchymal Stromal-Cell-Derived Chondrocyte Hypertrophy. Int J Mol Sci 2020; 21:ijms21238911. [PMID: 33255398 PMCID: PMC7727796 DOI: 10.3390/ijms21238911] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 11/20/2020] [Accepted: 11/20/2020] [Indexed: 02/06/2023] Open
Abstract
Adipose-derived mesenchymal stromal cells (Ad-MSCs) are a promising tool for articular cartilage repair and regeneration. However, the terminal hypertrophic differentiation of Ad-MSC-derived cartilage is a critical barrier during hyaline cartilage regeneration. In this study, we investigated the role of matrilin-3 in preventing Ad-MSC-derived chondrocyte hypertrophy in vitro and in an osteoarthritis (OA) destabilization of the medial meniscus (DMM) model. Methacrylated hyaluron (MAHA) (1%) was used to encapsulate and make scaffolds containing Ad-MSCs and matrilin-3. Subsequently, the encapsulated cells in the scaffolds were differentiated in chondrogenic medium (TGF-β, 1-14 days) and thyroid hormone hypertrophic medium (T3, 15-28 days). The presence of matrilin-3 with Ad-MSCs in the MAHA scaffold significantly increased the chondrogenic marker and decreased the hypertrophy marker mRNA and protein expression. Furthermore, matrilin-3 significantly modified the expression of TGF-β2, BMP-2, and BMP-4. Next, we prepared the OA model and transplanted Ad-MSCs primed with matrilin-3, either as a single-cell suspension or in spheroid form. Safranin-O staining and the OA score suggested that the regenerated cartilage morphology in the matrilin-3-primed Ad-MSC spheroids was similar to the positive control. Furthermore, matrilin-3-primed Ad-MSC spheroids prevented subchondral bone sclerosis in the mouse model. Here, we show that matrilin-3 plays a major role in modulating Ad-MSCs' therapeutic effect on cartilage regeneration and hypertrophy suppression.
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Affiliation(s)
| | - Byoung Ju Kim
- Department of Medical Biotechnology, Dongguk University-Seoul, Seoul 04620, Korea;
| | - Bogyu Choi
- Department of Biomedical Science, CHA University, 335 Pangyo-ro, Bundang-gu, 13488 Seongnam, Korea;
| | - Inbo Han
- Department of Neurosurgery, CHA Bundang Medical Center, CHA University, Seongnam-si 13496, Korea;
| | - Hansoo Park
- School of Integrative Engineering, Chung-Ang University, Seoul 06911, Korea;
- Correspondence: (H.P.); (S.-H.L.); Tel.: +82-2-820-5804 (H.P.); +82-31-961-5153 (S.-H.L.); Fax: +82-2-813-8159 (H.P.); +82-31-961-5108 (S.-H.L.)
| | - Soo-Hong Lee
- Department of Medical Biotechnology, Dongguk University-Seoul, Seoul 04620, Korea;
- Correspondence: (H.P.); (S.-H.L.); Tel.: +82-2-820-5804 (H.P.); +82-31-961-5153 (S.-H.L.); Fax: +82-2-813-8159 (H.P.); +82-31-961-5108 (S.-H.L.)
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31
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Shea MK, Booth SL, Harshman SG, Smith D, Carlson CS, Harper L, Armstrong AR, Fang M, Cancela ML, Márcio Simão, Loeser RF. The effect of vitamin K insufficiency on histological and structural properties of knee joints in aging mice. OSTEOARTHRITIS AND CARTILAGE OPEN 2020; 2:100078. [PMID: 36474686 PMCID: PMC9718348 DOI: 10.1016/j.ocarto.2020.100078] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 05/22/2020] [Indexed: 01/01/2023] Open
Abstract
Objective While a role for vitamin K in maintaining joint tissue homeostasis has been proposed based on the presence of vitamin K dependent proteins in cartilage and bone, it is not clear if low vitamin K intake is causally linked to joint tissue degeneration. To address this gap, we manipulated vitamin K status in aging mice to test its effect on age-related changes in articular cartilage and sub-chondral bone. Methods Eleven-month old male C57BL6 mice were randomly assigned to a low vitamin K diet containing 120 mcg phylloquinone/kg diet (n = 32) or a control diet containing 1.5 mg phylloquinone/kg diet (n = 30) for 6 months. Knees were evaluated histologically using Safranin O and H&E staining, as well as using micro-CT. Results Eleven mice in the low vitamin K diet group and three mice in the control group died within the first 100 days of the experiment (p = 0.024). Mice fed the low vitamin K diet had higher Safranin-O scores, indicative of more proteoglycan loss, compared to mice fed the control diet (p ≤ 0.026). The articular cartilage structure scores did not differ between the two groups (p ≥ 0.190). The sub-chondral bone parameters measured using micro CT also did not differ between the two groups (all p ≥ 0.174). Conclusion Our findings suggest low vitamin K status can promote joint tissue proteoglycan loss in older male mice. Future studies are needed to confirm our findings and obtain a better understanding of the molecular mechanisms underlying the role of vitamin K in joint tissue homeostasis.
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Affiliation(s)
- M. Kyla Shea
- USDA Human Nutrition Research Center on Aging at Tufts University, Boston MA, USA
| | - Sarah L. Booth
- USDA Human Nutrition Research Center on Aging at Tufts University, Boston MA, USA
| | | | - Donald Smith
- USDA Human Nutrition Research Center on Aging at Tufts University, Boston MA, USA
| | - Cathy S. Carlson
- College of Veterinary Medicine, University of Minnesota, St. Paul MN, USA
| | - Lindsey Harper
- College of Veterinary Medicine, University of Minnesota, St. Paul MN, USA
| | | | - Min Fang
- Small Animal Imaging Preclinical Testing Facility, Tufts University School of Medicine, Boston MA, USA
| | - M. Leonor Cancela
- Center of Marine Sciences University of Algarve, Faro Portugal
- Department of Biomedical Sciences and Medicine, University of Algarve, Faro Portugal
- Algarve Biomedical Centre and Centre for Biomedical Research, Universidade do Algarve, Faro, Portugal
| | - Márcio Simão
- Center of Marine Sciences University of Algarve, Faro Portugal
- Department of Biomedical Sciences and Medicine, University of Algarve, Faro Portugal
| | - Richard F. Loeser
- Thurston Arthritis Center, University of North Carolina School of Medicine, Chapel Hill, NC, USA
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Loeser RF, Kelley KL, Armstrong A, Collins JA, Diekman BO, Carlson CS. Deletion of JNK Enhances Senescence in Joint Tissues and Increases the Severity of Age-Related Osteoarthritis in Mice. Arthritis Rheumatol 2020; 72:1679-1688. [PMID: 32418287 DOI: 10.1002/art.41312] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 05/12/2020] [Indexed: 12/16/2022]
Abstract
OBJECTIVE To determine the role of JNK signaling in the development of osteoarthritis (OA) induced by joint injury or aging in mice. METHODS In the joint injury model, 12-week-old wild-type control, JNK1-/- , JNK2-/- , and JNK1fl/fl JNK2-/- aggecan-CreERT 2 double-knockout mice were subjected to destabilization of the medial meniscus (DMM) (n = 15 mice per group) or sham surgery (n = 9-10 mice per group), and OA was evaluated 8 weeks later. In the aging experiment, wild-type control, JNK1-/- , and JNK2-/- mice (n = 15 per group) were evaluated at 18 months of age. Mouse knee joints were evaluated by scoring articular cartilage structure, toluidine blue staining, osteophytes, and synovial hyperplasia, by histomorphometric analysis, and by immunostaining for the senescence marker p16INK 4a . Production of matrix metalloproteinase 13 (MMP-13) in cartilage explants in response to fibronectin fragments was measured by enzyme-linked immunosorbent assay. RESULTS There were no differences after DMM surgery between the wild-type and the JNK-knockout mouse groups in articular cartilage structure, toluidine blue, or osteophyte scores or in MMP-13 production in explants. All 3 knockout mouse groups had increased subchondral bone thickness and area of cartilage necrosis compared to wild-type mice. Aged JNK-knockout mice had significantly worse articular cartilage structure scores compared to the aged wild-type control mice (mean ± SD 52 ± 24 in JNK1-/- mice and 60 ± 25 in JNK2-/- mice versus 32 ± 18 in controls; P = 0.02 and P = 0.004, respectively). JNK1-/- mice also had higher osteophyte scores. Deletion of JNK resulted in increased expression of p16INK 4a in the synovium and cartilage in older mice. CONCLUSION JNK1 and JNK2 are not required for the development of OA in the mouse DMM model. Deletion of JNK1 or JNK2 is associated with more severe age-related OA and increased cell senescence, suggesting that JNK may act as a negative regulator of senescence in the joint.
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Affiliation(s)
| | | | | | - John A Collins
- University of North Carolina School of Medicine, Chapel Hill
| | - Brian O Diekman
- University of North Carolina School of Medicine, Chapel Hill, and North Carolina State University, Raleigh
| | - Cathy S Carlson
- University of Minnesota College of Veterinary Medicine, St. Paul
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Tracking Osteoarthritis Progress through Cationic Nanoprobe-Enhanced Photoacoustic Imaging of Cartilage. Acta Biomater 2020; 109:153-162. [PMID: 32339712 DOI: 10.1016/j.actbio.2020.04.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 03/21/2020] [Accepted: 04/02/2020] [Indexed: 12/11/2022]
Abstract
A major obstacle in osteoarthritis (OA) theranostics is the lack of a timely and accurate monitoring method. It is hypothesized that the loss of anionic glycosaminoglycans (GAGs) in articular cartilage reflects the progression of OA. Thus, this study investigated the feasibility of photoacoustic imaging (PAI) applied for monitoring the in vivo course of OA progression via GAG-targeted cationic nanoprobes. The nanoprobes were synthesized through electrostatic attraction between poly-l-Lysine and melanin (PLL-MNPs). Cartilage explants with different concentrations of GAGs incubated with PLL-MNPs to test the relationship between GAGs content and PA signal intensity. GAG activity was then evaluated in vivo in destabilization of the medial meniscus (DMM) surgically-induced mouse model. To track OA progression over time, mice were imaged consistently for 10 weeks after OA-inducing surgery. X-ray was used to verify the superiority of PAI in detecting OA. The correlation between PAI data and histologic results was also analyzed. In vitro study demonstrated the ability of PLL-MNPs in sensitively detecting different GAGs concentrations. In vivo PAI exhibited significantly lower signal intensity from OA knees compared to normal knees. More importantly, PA signal intensity showed serial reduction over the course of OA, while X-ray showed visible joint destruction until 6 weeks. A decrease in GAGs content was confirmed by histologic examinations; moreover, histologic findings were well correlated with PAI results. Therefore, using cationic nanoprobe-enhanced PAI to detect the changes in GAG contents provides sensitive and consistent visualization of OA development. This approach will further facilitate OA theranostics and clinical translation. STATEMENT OF SIGNIFICANCE: The study of in vivo monitoring osteoarthritis (OA) is of high significance to tracking the trajectory of OA development and therapeutic monitoring. Here, we developed a cartilage-targeted cationic nanoprobe, poly-l-Lysine-melanin nanoparticles (PLL-MNPs), enhancing photoacoustic imaging (PAI) to monitor the progression of OA. The in vitro study demonstrated the ability of PLL-MNPs to detect different concentrations of GAGs with high sensitivity. We found that the contents of GAGs in vivo steadily decreased from the development of OA initial-stage to the end-point of our investigation via PAI; it reflected the course of OA in living subjects with high sensitivity. These results allow for further development in various aspects of OA research. It has potential for clinical translation and has a great impact on personalized medicine.
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Pinamont WJ, Yoshioka NK, Young GM, Karuppagounder V, Carlson EL, Ahmad A, Elbarbary R, Kamal F. Standardized Histomorphometric Evaluation of Osteoarthritis in a Surgical Mouse Model. J Vis Exp 2020:10.3791/60991. [PMID: 32449702 PMCID: PMC7882241 DOI: 10.3791/60991] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
One of the most prevalent joint disorders in the United States, osteoarthritis (OA) is characterized by progressive degeneration of articular cartilage, primarily in the hip and knee joints, which results in significant impacts on patient mobility and quality of life. To date, there are no existing curative therapies for OA able to slow down or inhibit cartilage degeneration. Presently, there is an extensive body of ongoing research to understand OA pathology and discover novel therapeutic approaches or agents that can efficiently slow down, stop, or even reverse OA. Thus, it is crucial to have a quantitative and reproducible approach to accurately evaluate OA-associated pathological changes in the joint cartilage, synovium, and subchondral bone. Currently, OA severity and progression are primarily assessed using the Osteoarthritis Research Society International (OARSI) or Mankin scoring systems. In spite of the importance of these scoring systems, they are semiquantitative and can be influenced by user subjectivity. More importantly, they fail to accurately evaluate subtle, yet important, changes in the cartilage during the early disease states or early treatment phases. The protocol we describe here uses a computerized and semiautomated histomorphometric software system to establish a standardized, rigorous, and reproducible quantitative methodology for the evaluation of joint changes in OA. This protocol presents a powerful addition to the existing systems and allows for more efficient detection of pathological changes in the joint.
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Affiliation(s)
- William J Pinamont
- Center for Orthopedic Research and Translational Sciences, Department of Orthopedics and Rehabilitation, Pennsylvania State College of Medicine
| | - Natalie K Yoshioka
- Center for Orthopedic Research and Translational Sciences, Department of Orthopedics and Rehabilitation, Pennsylvania State College of Medicine
| | - Gregory M Young
- Center for Orthopedic Research and Translational Sciences, Department of Orthopedics and Rehabilitation, Pennsylvania State College of Medicine
| | - Vengadeshprabhu Karuppagounder
- Center for Orthopedic Research and Translational Sciences, Department of Orthopedics and Rehabilitation, Pennsylvania State College of Medicine
| | - Elijah L Carlson
- Center for Orthopedic Research and Translational Sciences, Department of Orthopedics and Rehabilitation, Pennsylvania State College of Medicine
| | - Adeel Ahmad
- Center for Orthopedic Research and Translational Sciences, Department of Orthopedics and Rehabilitation, Pennsylvania State College of Medicine
| | - Reyad Elbarbary
- Center for Orthopedic Research and Translational Sciences, Department of Orthopedics and Rehabilitation, Pennsylvania State College of Medicine; Department of Biochemistry and Molecular Biology, Pennsylvania State College of Medicine
| | - Fadia Kamal
- Center for Orthopedic Research and Translational Sciences, Department of Orthopedics and Rehabilitation, Pennsylvania State College of Medicine; Department of Pharmacology, Pennsylvania State College of Medicine;
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Tan L, Harper L, McNulty MA, Carlson CS, Yammani RR. High-fat diet induces endoplasmic reticulum stress to promote chondrocyte apoptosis in mouse knee joints. FASEB J 2020; 34:5818-5826. [PMID: 32124494 DOI: 10.1096/fj.201902746r] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 02/19/2020] [Accepted: 02/20/2020] [Indexed: 12/31/2022]
Abstract
Mice fed a high-fat diet (HFD) become obese and develop osteoarthritis (OA)-like lesions, including chondrocyte apoptosis, in the knee joints. However, the mechanism by which HFD/obesity induces chondrocyte apoptosis is not clearly understood. In the present study, male mice were fed a low-fat diet (LFD, 10% kcal), HFD (45% kcal), or a HFD administered with 0.5 g/kg bodyweight of 4-phenyl butyric acid (PBA, a small chaperone known to ease endoplasmic reticulum [ER] stress), via the drinking water. At the end of the 18-week study, stifle (knee) joints from all animals were collected, fixed, paraffin embedded, and sectioned. Immunostaining of joints from the HFD group showed increased expression of ER stress and apoptotic markers and increased expression of nuclear protein 1 and tribbles related protein-3 compared to the LFD group. Mice on HFD also showed higher percentage of chondrocyte death, lower chondrocyte numbers per cartilage area, and thickening of subchondral bone. Administration of PBA alleviated all of the HFD-induced symptoms. Our study demonstrated that HFD induces ER stress to promote chondrocyte death and subchondral bone thickening, which could be relieved by alleviating ER stress via PBA administration, suggesting that ER stress could play an important role in obesity-linked OA and could be targeted for OA therapeutics.
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Affiliation(s)
- Li Tan
- Section of Molecular Medicine, Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Lindsey Harper
- Veterinary Clinical Sciences Department, College of Veterinary Medicine, University of Minnesota, Saint Paul, MN, USA
| | - Margaret A McNulty
- Department of Anatomy, Cell Biology, & Physiology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Cathy S Carlson
- Veterinary Clinical Sciences Department, College of Veterinary Medicine, University of Minnesota, Saint Paul, MN, USA
| | - Raghunatha R Yammani
- Section of Molecular Medicine, Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, NC, USA
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Tessier S, Doolittle AC, Sao K, Rotty JD, Bear JE, Ulici V, Loeser RF, Shapiro IM, Diekman BO, Risbud MV. Arp2/3 inactivation causes intervertebral disc and cartilage degeneration with dysregulated TonEBP-mediated osmoadaptation. JCI Insight 2020; 5:131382. [PMID: 31961823 DOI: 10.1172/jci.insight.131382] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 01/15/2020] [Indexed: 01/01/2023] Open
Abstract
Extracellular matrix and osmolarity influence the development and homeostasis of skeletal tissues through Rho GTPase-mediated alteration of the actin cytoskeleton. This study investigated whether the actin-branching Arp2/3 complex, a downstream effector of the Rho GTPases Cdc42 and Rac1, plays a critical role in maintaining the health of matrix-rich and osmotically loaded intervertebral discs and cartilage. Mice with constitutive intervertebral disc- and cartilage-specific deletion of the critical Arp2/3 subunit Arpc2 (Col2-Cre; Arpc2fl/fl) developed chondrodysplasia and spinal defects. Since these mice did not survive to adulthood, we generated mice with inducible Arpc2 deletion in disc and cartilage (Acan-CreERT2; Arpc2fl/fl). Inactivation of Arp2/3 at skeletal maturity resulted in growth plate closure, loss of proteoglycan content in articular cartilage, and degenerative changes in the intervertebral disc at 1 year of age. Chondrocytes with Arpc2 deletion showed compromised cell spreading on both collagen and fibronectin. Pharmacological inhibition of Cdc42 and Arp2/3 prevented the osmoadaptive transcription factor TonEBP/NFAT5 from recruiting cofactors in response to a hyperosmolarity challenge. Together, these findings suggest that Arp2/3 plays a critical role in cartilaginous tissues through the regulation of cell-extracellular matrix interactions and modulation of TonEBP-mediated osmoadaptation.
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Affiliation(s)
- Steven Tessier
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College
| | - Alexandra C Doolittle
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College.,Graduate Program in Cell Biology and Regenerative Medicine, Jefferson College of Life Sciences, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Kimheak Sao
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College.,Graduate Program in Cell Biology and Regenerative Medicine, Jefferson College of Life Sciences, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Jeremy D Rotty
- Department of Biochemistry, Uniformed Services University of the Health Sciences, Bethesda, Maryland, USA.,Department of Cell Biology and Physiology.,UNC Lineberger Comprehensive Cancer Center
| | - James E Bear
- Department of Cell Biology and Physiology.,UNC Lineberger Comprehensive Cancer Center
| | - Veronica Ulici
- Thurston Arthritis Research Center, and.,Division of Rheumatology, Allergy, and Immunology, Department of Medicine, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Richard F Loeser
- Thurston Arthritis Research Center, and.,Division of Rheumatology, Allergy, and Immunology, Department of Medicine, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Irving M Shapiro
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College.,Graduate Program in Cell Biology and Regenerative Medicine, Jefferson College of Life Sciences, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Brian O Diekman
- Division of Rheumatology, Allergy, and Immunology, Department of Medicine, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.,Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill and Raleigh, North Carolina, USA
| | - Makarand V Risbud
- Department of Orthopaedic Surgery, Sidney Kimmel Medical College.,Graduate Program in Cell Biology and Regenerative Medicine, Jefferson College of Life Sciences, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
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Ewart D, Harper L, Gravely A, Miller RA, Carlson CS, Loeser RF. Naturally occurring osteoarthritis in male mice with an extended lifespan. Connect Tissue Res 2020; 61:95-103. [PMID: 31530037 PMCID: PMC6884676 DOI: 10.1080/03008207.2019.1635590] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Aim: The purpose of this study was to evaluate whether pharmacologic treatments or genotypes shown to prolong murine lifespan ameliorate the severity of age-associated osteoarthritis.Materials and Methods: Male UM-HET3 mice were fed diets containing 17-α-estradiol, acarbose, nordihydroguaiaretic acid, or control diet per the National Institute on Aging Interventions Testing Program (ITP) protocol. Findings were compared to genetically long-lived male Ames dwarf mice. Stifles were analyzed histologically with articular cartilage structure (ACS) and safranin O scoring as well as with quantitative histomorphometry.Results: Depending on the experimental group, ITP mice were between 450 and 1150 days old at the time of necropsy and 12-15 animals were studied per group. Two age groups (450 and 750 days) with 16-20 animals per group were used for Ames dwarf studies. No differences were found in the ACS or safranin O scores between treatment and control groups in the ITP study. There was high variability in most of the histologic outcome measures. For example, the older UM-HET3 controls had ACS scores of 6.1 ± 5.8 (mean±SD) and Saf O scores of 6.8 ± 5.6. Nevertheless, 17-α-estradiol mice had larger areas and widths of subchondral bone compared to controls, and dwarf mice had less subchondral bone area and width and less articular cartilage necrosis than non-dwarf controls.Conclusions: UM-HET3 mice developed age-related OA but with a high degree of variability and without a significant effect of the tested ITP treatments. High variability was also seen in the Ames dwarf mice but differences in several measures suggested some protection from OA.
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Affiliation(s)
- Dave Ewart
- Division of Rheumatology, Minneapolis Veterans Affairs Medical Center, 1 Veterans Drive, Mail Code 111R, Minneapolis, MN 55417
| | - Lindsey Harper
- Department of Veterinary Clinical Sciences, 1352 Boyd Avenue, C339 Veterinary Medical Center, St. Paul, MN 55108
| | - Amy Gravely
- Division of Rheumatology, Minneapolis Veterans Affairs Medical Center, 1 Veterans Drive, Mail Code 111R, Minneapolis, MN 55417
| | - Richard A. Miller
- Department of Pathology, University of Michigan School of Medicine, 2800 Plymouth Rd Building 35, Ann Arbor, MI 48109
| | - Cathy S. Carlson
- Department of Veterinary Clinical Sciences, 1352 Boyd Avenue, C339 Veterinary Medical Center, St. Paul, MN 55108
| | - Richard F. Loeser
- Division of Rheumatology, Allergy and Immunology and the Thurston Arthritis Research Center, University of North Carolina, 3300 Thurston Building, Campus Box 7280, Chapel Hill, NC 27599-7280,Correspondence to: Richard F. Loeser, MD, Thurston Arthritis Research Center, 3300 Thurston Building, Campus Box 7280, Chapel Hill, NC 27599-7280,
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Pappa E, Papadopoulos S, Korou LM, Perrea DN, Pneumaticos S, Nikolaou VS. The role of intra-articular administration of Fetuin-A in post-traumatic knee osteoarthritis: an experimental study in a rat model. J Exp Orthop 2019; 6:25. [PMID: 31209645 PMCID: PMC6579801 DOI: 10.1186/s40634-019-0194-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Accepted: 06/04/2019] [Indexed: 01/12/2023] Open
Abstract
Background The purpose of this study is to investigate the possible attenuating role of the intra-articular administration of Fetuin-A in post-traumatic secondary osteoarthritis in rats, and also its effect on the systematic levels of interleukins (ILs)-2,4,7, bone morphogenetic proteins (BMPs) 2, 4, 7, C-Reactive Protein (CRP) and Fetuin-A. Methods Thirty male Sprague Dawley rats were separated in two groups where post-traumatic osteoarthritis was induced surgically by Anterior Cruciate Ligament Transection and the transection of the Medial Collateral Ligament of the right knee. In the Control Group, only the surgical intervention took place. In Fetuin Group, along with the induction of osteoarthritis, a single dose of bovine fetuin was administrated intra-articularly, intra-operatively. Both groups were examined for 8 weeks. The levels of interleukins, bone morphogenetic proteins, Fetuin-A and C-Reactive Protein were evaluated by ELISA of peripheral blood in three time periods: preoperatively, 5 and 8 weeks post-operatively. Osteoarthritic lesions of the knee were classified according to the Osteoarthritis Research Society International Grading System and the Modified Mankin Score, by histologic examination. Results IL-2 levels were significantly decreased in the Fetuin Group. No statistical difference was signed on the levels of IL-7, BMP-2,4,7 and Fetuin-A between the two groups. CRP levels were significantly increased in the Fetuin Group in 5 weeks of the experiment. Fetuin Group signed better scores according to the OARSI classification system and Modified Mankin Score, without any statistical significance. Conclusions Intra-articular administration of Fetuin-A restrictively affected the progression of post-traumatic arthritis in rats, as only the levels of IL-2 were decreased as well as limited osteoarthritic lesions were observed on the Fetuin Group.
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Affiliation(s)
- Eleni Pappa
- "KAT" General Hospital of Athens, Nikis 2, 14561, Kifisia, Greece.
| | - Savvas Papadopoulos
- Department of Pathology, "Hygeia" General Hospital of Athens, Athens, Greece
| | - Laskarina-Maria Korou
- Laboratory of Experimental Surgery and Research "N.S. Christeas", Athens Medical School, Athens, Greece
| | - Despina N Perrea
- Laboratory of Experimental Surgery and Research "N.S. Christeas", Athens Medical School, Athens, Greece
| | - Spiridon Pneumaticos
- 3rd Department of Orthopaedics, KAT Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
| | - Vasileios S Nikolaou
- 2nd Department of Orthopaedics, Agia Olga Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece
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Affiliation(s)
- Piper M Treuting
- 1 Department of Comparative Medicine, University of Washington, Seattle, WA, USA
| | - Kelli L Boyd
- 2 Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
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40
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Ulici V, Kelley KL, Longobardi L, McNulty MA, Livingston EW, Bateman TA, Séguin CA, Louer CR, Loeser RF. Impaired Annulus Fibrosus Development and Vertebral Fusion Cause Severe Scoliosis in Mice with Deficiency of c-Jun NH2-Terminal Kinases 1 and 2. THE AMERICAN JOURNAL OF PATHOLOGY 2019; 189:868-885. [PMID: 30664861 DOI: 10.1016/j.ajpath.2018.12.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 11/19/2018] [Accepted: 12/20/2018] [Indexed: 12/30/2022]
Abstract
Mitogen-activated protein kinases, including c-Jun NH2-terminal kinase (JNK), play an important role in the development and function of a large variety of tissues. The skeletal phenotype of JNK1 and JNK2 double-knockout (dKO) mice (JNK1fl/flCol2-Cre/JNK2-/-) and control genotypes were analyzed at different embryonic and postnatal stages. JNK1/2 dKO mice displayed a severe scoliotic phenotype beginning during development that was grossly apparent around weaning age. Alcian blue staining at embryonic day 17.5 showed abnormal fusion of the posterior spinal elements. In adult mice, fusion of vertebral bodies and of spinous and transverse processes was noted by micro-computed tomography, Alcian blue/Alizarin red staining, and histology. The long bones developed normally, and histologic sections of growth plate and articular cartilage revealed no significant abnormalities. Histologic sections of the vertebral column at embryonic days 15.5 and 17.5 revealed an abnormal organization of the annulus fibrosus in the dKOs, with chondrocyte-like cells and fusion of dorsal processes. Spinal sections in 10-week-old dKO mice showed replacement of intervertebral disk structures (annulus fibrosus and nucleus pulposus) by cartilage and bone tissues, with cells staining for markers of hypertrophic chondrocytes, including collagen X and runt-related transcription factor 2. These findings demonstrate a requirement for both JNK1 and JNK2 in the normal development of the axial skeleton. Loss of JNK signaling results in abnormal endochondral bone formation and subsequent severe scoliosis.
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Affiliation(s)
- Veronica Ulici
- Division of Rheumatology, Allergy and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina; Thurston Arthritis Research Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Kathryn L Kelley
- Division of Rheumatology, Allergy and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina; Thurston Arthritis Research Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Lara Longobardi
- Division of Rheumatology, Allergy and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina; Thurston Arthritis Research Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Margaret A McNulty
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Eric W Livingston
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Ted A Bateman
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Cheryle A Séguin
- Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Bone and Joint Institute, The University of Western Ontario, London, Ontario, Canada
| | - Craig R Louer
- Department of Orthopedic Surgery, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Richard F Loeser
- Division of Rheumatology, Allergy and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina; Thurston Arthritis Research Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
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Diekman BO, Sessions GA, Collins JA, Knecht AK, Strum SL, Mitin NK, Carlson CS, Loeser RF, Sharpless NE. Expression of p16 INK 4a is a biomarker of chondrocyte aging but does not cause osteoarthritis. Aging Cell 2018; 17:e12771. [PMID: 29744983 PMCID: PMC6052464 DOI: 10.1111/acel.12771] [Citation(s) in RCA: 101] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/01/2018] [Indexed: 12/12/2022] Open
Abstract
Cellular senescence drives a functional decline of numerous tissues with aging by limiting regenerative proliferation and/or by producing pro‐inflammatory molecules known as the senescence‐associated secretory phenotype (SASP). The senescence biomarker p16INK4a is a potent inhibitor of the cell cycle but is not essential for SASP production. Thus, it is unclear whether p16INK4a identifies senescence in hyporeplicative cells such as articular chondrocytes and whether p16INK4a contributes to pathologic characteristics of cartilage aging. To address these questions, we examined the role of p16INK4a in murine and human models of chondrocyte aging. We observed that p16INK4amRNA expression was significantly upregulated with chronological aging in murine cartilage (~50‐fold from 4 to 18 months of age) and in primary human chondrocytes from 57 cadaveric donors (r2 = .27, p < .0001). Human chondrocytes exhibited substantial replicative potential in vitro that depended on the activity of cyclin‐dependent kinases 4 or 6 (CDK4/6), and proliferation was reduced in cells from older donors with increased p16INK4a expression. Moreover, increased chondrocyte p16INK4a expression correlated with several SASP transcripts. Despite the relationship between p16INK4a expression and these features of senescence, somatic inactivation of p16INK4a in chondrocytes of adult mice did not mitigate SASP expression and did not alter the rate of osteoarthritis (OA) with physiological aging or after destabilization of the medial meniscus. These results establish that p16INK4a expression is a biomarker of dysfunctional chondrocytes, but that the effects of chondrocyte senescence on OA are more likely driven by production of SASP molecules than by loss of chondrocyte replicative function.
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Affiliation(s)
- Brian O. Diekman
- Lineberger Comprehensive Cancer Center; University of North Carolina School of Medicine; Chapel Hill North Carolina
- Thurston Arthritis Research Center; University of North Carolina School of Medicine; Chapel Hill North Carolina
- Department of Biomedical Engineering; University of North Carolina, Chapel Hill, NC; North Carolina State University; Raleigh North Carolina
| | - Garrett A. Sessions
- Thurston Arthritis Research Center; University of North Carolina School of Medicine; Chapel Hill North Carolina
| | - John A. Collins
- Thurston Arthritis Research Center; University of North Carolina School of Medicine; Chapel Hill North Carolina
| | - Anne K. Knecht
- HealthSpan Diagnostics LLC; Research Triangle Park North Carolina
| | - Susan L. Strum
- HealthSpan Diagnostics LLC; Research Triangle Park North Carolina
| | - Natalia K. Mitin
- HealthSpan Diagnostics LLC; Research Triangle Park North Carolina
| | - Cathy S. Carlson
- Department of Veterinary Clinical Sciences; University of Minnesota; St. Paul Minnesota
| | - Richard F. Loeser
- Thurston Arthritis Research Center; University of North Carolina School of Medicine; Chapel Hill North Carolina
- Division of Rheumatology, Allergy, and Immunology; University of North Carolina School of Medicine; Chapel Hill North Carolina
| | - Norman E. Sharpless
- Lineberger Comprehensive Cancer Center; University of North Carolina School of Medicine; Chapel Hill North Carolina
- Departments of Medicine and Genetics; University of North Carolina School of Medicine; Chapel Hill North Carolina
- The National Cancer Institute; Bethesda Maryland
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Ulici V, Kelley K, Azcarate-Peril M, Cleveland R, Sartor R, Schwartz T, Loeser R. Osteoarthritis induced by destabilization of the medial meniscus is reduced in germ-free mice. Osteoarthritis Cartilage 2018; 26:1098-1109. [PMID: 29857156 PMCID: PMC7970023 DOI: 10.1016/j.joca.2018.05.016] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 04/23/2018] [Accepted: 05/15/2018] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To determine the contribution of the gut microbiota to the development of injury-induced osteoarthritis (OA). DESIGN OA was induced using the destabilized medial meniscus (DMM) model in 20 germ-free (GF) C57BL/6J male mice housed in a gnotobiotic facility and 23 strain-matched specific pathogen free (SPF) mice in 2 age groups -13.5 weeks avg age at DMM (17 SPF and 15 GF) and 43 weeks avg age at DMM (6 SPF and 5 GF). OA severity was measured using scores for articular cartilage structure (ACS), loss of safranin O (SafO) staining, osteophyte size, and synovial hyperplasia. Microbiome analysis by 16S rRNA amplicon sequencing was performed on stool samples and LPS and LPS binding protein (LBP) were measured in plasma. RESULTS Compared to the SPF DMM mice, the maximum (MAX) ACS score per joint was 28% lower (p = 0.036) in GF DMM mice while the SafO sum score of all sections evaluated per joint was decreased by 31% (p = 0.009). The differences between SPF and GF mice in these scores were greater when only the younger mice were included in the analysis. The younger GF DMM mice also had significant reductions in osteophyte size (36%, P = 0.0119) and LBP (27%, P = 0.007) but not synovial scores or LPS. Differences in relative abundance of a number of Operational Taxonomic Units (OTUs) were noted between SPF mice with high vs low maximum ACS scores. CONCLUSIONS These results suggest factors related to the gut microbiota promote the development of OA after joint injury.
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Affiliation(s)
- V. Ulici
- Thurston Arthritis Research Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - K.L. Kelley
- Thurston Arthritis Research Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - M.A. Azcarate-Peril
- Department of Medicine, Division of Gastroenterology and Hepatology, and Microbiome Core Facility, Center for Gastrointestinal Biology and Disease, School of Medicine, University of North Carolina, Chapel Hill, NC, USA
| | - R.J. Cleveland
- Thurston Arthritis Research Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - R.B. Sartor
- Department of Medicine, Division of Gastroenterology and Hepatology and Gnotobiotic Core Facility, Center for Gastrointestinal Biology and Disease, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - T.A. Schwartz
- Thurston Arthritis Research Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA, Department of Biostatistics, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, USA
| | - R.F. Loeser
- Thurston Arthritis Research Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA,Address correspondence and reprint requests to: R.F. Loeser, Thurston Arthritis Research Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA, (R.F. Loeser)
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Hui Mingalone CK, Liu Z, Hollander JM, Garvey KD, Gibson AL, Banks RE, Zhang M, McAlindon TE, Nielsen HC, Georgakoudi I, Zeng L. Bioluminescence and second harmonic generation imaging reveal dynamic changes in the inflammatory and collagen landscape in early osteoarthritis. J Transl Med 2018; 98:656-669. [PMID: 29540857 PMCID: PMC7735372 DOI: 10.1038/s41374-018-0040-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 12/12/2017] [Accepted: 12/14/2017] [Indexed: 12/28/2022] Open
Abstract
Osteoarthritis (OA) is a leading cause of chronic disability whose mechanism of pathogenesis is largely elusive. Local inflammation is thought to play a key role in OA progression, especially in injury-associated OA. While multiple inflammatory cytokines are detected, the timing and extent of overall inflammatory activities in early OA and the manner by which joint inflammation correlates with cartilage structural damage are still unclear. We induced OA via destabilization of the medial meniscus (DMM) in NFκB luciferase reporter mice, whose bioluminescent signal reflects the activity of NFκB, a central mediator of inflammation. Bioluminescence imaging data showed that DMM and sham control joints had a similar surge of inflammation at 1-week post-surgery, but the DMM joint exhibited a delay in resolution of inflammation in subsequent weeks. A similar trend was observed with synovitis, which we found to be mainly driven by synovial cell density and inflammatory infiltration rather than synovial lining thickness. Interestingly, an association between synovitis and collagen structural damage was observed in early OA. Using Second Harmonic Generation (SHG) imaging, we analyzed collagen fiber organization in articular cartilage. Zonal differences in collagen fiber thickness and organization were observed as soon as OA initiated after DMM surgery, and persisted over time. Even at 1-week post-surgery, the DMM joint showed a decrease in collagen fiber thickness in the deep zone and an increase in collagen fiber disorganization in the superficial zone. Since we were able detect and quantify collagen structural changes very early in OA development by SHG imaging, we concluded that SHG imaging is a highly sensitive tool to evaluate pathological changes in OA. In summary, this study uncovered a dynamic profile of inflammation and joint cartilage damage during OA initiation and development, providing novel insights into OA pathology.
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Affiliation(s)
- Carrie K. Hui Mingalone
- Program in Cell, Molecular, and Developmental Biology, Sackler School of Graduate Biomedical Sciences, Tufts University, Boston, MA 02111, USA
| | - Zhiyi Liu
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
| | - Judith M. Hollander
- Program in Cell, Molecular, and Developmental Biology, Sackler School of Graduate Biomedical Sciences, Tufts University, Boston, MA 02111, USA
| | - Kirsten D. Garvey
- Department of Immunology, Tufts University School of Medicine, Boston, MA 02111, USA
| | - Averi L. Gibson
- Program in Cell, Molecular, and Developmental Biology, Sackler School of Graduate Biomedical Sciences, Tufts University, Boston, MA 02111, USA
| | - Rose E. Banks
- Department of Immunology, Tufts University School of Medicine, Boston, MA 02111, USA
| | - Ming Zhang
- Division of Rheumatology, Tufts Medical Center, Boston, MA 02111, USA
| | | | - Heber C. Nielsen
- Program in Cell, Molecular, and Developmental Biology, Sackler School of Graduate Biomedical Sciences, Tufts University, Boston, MA 02111, USA
| | - Irene Georgakoudi
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
| | - Li Zeng
- Program in Cell, Molecular, and Developmental Biology, Sackler School of Graduate Biomedical Sciences, Tufts University, Boston, MA, 02111, USA. .,Department of Immunology, Tufts University School of Medicine, Boston, MA, 02111, USA. .,Department of Orthopaedics, Tufts Medical Center, Boston, MA, 02111, USA.
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44
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Kung LHW, Ravi V, Rowley L, Bell KM, Little CB, Bateman JF. Comprehensive Expression Analysis of microRNAs and mRNAs in Synovial Tissue from a Mouse Model of Early Post-Traumatic Osteoarthritis. Sci Rep 2017; 7:17701. [PMID: 29255152 PMCID: PMC5735155 DOI: 10.1038/s41598-017-17545-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Accepted: 11/19/2017] [Indexed: 01/15/2023] Open
Abstract
To better understand the molecular processes involved in driving osteoarthritis disease progression we characterized expression profiles of microRNAs (miRNA) and mRNAs in synovial tissue from a post-traumatic OA mouse model. OA was induced in 10–12 week old male C57BL6 mice by bilateral surgical destabilization of the medial meniscus (DMM). RNA isolated from the anterior synovium of mice at 1 and 6 weeks post-surgery was subject to expression profiling using Agilent microarrays and qPCR. OA severity was determined histologically. Anterior and posterior synovitis decreased with post-operative time after sham and DMM. No differences in synovitis parameters were evident between sham and DMM in the anterior synovium at either time. While expression profiling revealed 394 miRNAs were dysregulated between 1 and 6 week time-points in the anterior synovium, there were no significant changes in miRNA or mRNA expression between DMM and sham mice at both time-points. Bioinformatic analysis of the miRNAs and mRNAs differentially expressed in tandem with the resolution of anterior synovial inflammation revealed similar biological processes and functions, including organismal injury, connective tissue disorder and inflammatory responses. Our data demonstrates that early OA-specific patterns of synovial miRNAs or mRNAs dysregulation could not be identified in this model of post-traumatic OA.
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Affiliation(s)
- Louise H W Kung
- Murdoch Childrens Research Institute, Parkville, Victoria, 3052, Australia
| | - Varshini Ravi
- Raymond Purves Bone and Joint Research Laboratories, Kolling Institute of Medical Research, Institute of Bone and Joint Research, University of Sydney, St Leonards, New South Wales, 2065, Australia
| | - Lynn Rowley
- Murdoch Childrens Research Institute, Parkville, Victoria, 3052, Australia
| | - Katrina M Bell
- Murdoch Childrens Research Institute, Parkville, Victoria, 3052, Australia
| | - Christopher B Little
- Raymond Purves Bone and Joint Research Laboratories, Kolling Institute of Medical Research, Institute of Bone and Joint Research, University of Sydney, St Leonards, New South Wales, 2065, Australia.
| | - John F Bateman
- Murdoch Childrens Research Institute, Parkville, Victoria, 3052, Australia.,Department of Biochemistry and Molecular Biology, University of Melbourne, Parkville, Victoria, 3052, Australia
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Abstract
Chronic pain conditions are often comorbid with alcohol abuse. "Self-medication" with alcohol introduces a host of problems associated with the abuse of alcohol which over time has the potential of exacerbating the painful condition. Despite the prevalence of chronic pain being associated with alcohol abuse, rodent models which mimic the comorbid conditions are lacking. In this study, we model osteoarthritis (OA) in C57BL/6J mice by surgically destabilizing the medial meniscus (DMM). Sham-operated mice served as controls. Thirteen weeks after surgery, DMM but not sham-operated mice exhibited pronounced incapacitance of the surgically manipulated hind limb compared with the nonsurgically manipulated hind limb. At this time, the mice were exposed to the 2-bottle ethanol choice, beginning with 2.5% with a gradual increasing to 20%. Compared with sham controls, DMM mice consumed more EtOH and preferred EtOH over water at the 20% EtOH concentration. Histological analysis verified that the DMM mice exhibited significant damage to the articular cartilage and osteophyte growth compared with sham controls and these measures of the severity of OA correlated with the amount of ethanol intake. Thus, the combination of the DMM model of OA with the enhanced two-bottle ethanol choice is a potential preclinical approach in mice by which the basis of the comorbid association of alcohol abuse and chronic pain conditions can be explored.
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46
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Mason JB, Gurda BL, Hankenson KD, Harper LR, Carlson CS, Wilson JM, Richardson DW. Wnt10b and Dkk-1 gene therapy differentially influenced trabecular bone architecture, soft tissue integrity, and osteophytosis in a skeletally mature rat model of osteoarthritis. Connect Tissue Res 2017; 58:542-552. [PMID: 27937051 PMCID: PMC7413086 DOI: 10.1080/03008207.2016.1267153] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
AIMS Our goals in the current experiments were to determine if (a) upregulation of Wnt signaling would induce osteoarthritis changes in stable stifle joints and (b) if downregulation of Wnt signaling in destabilized joints would influence the progression of OA. METHODS At 37 weeks of age, rats were injected in the stifle joint with a recombinant adeno-associated viral vector containing the Wnt-inhibitor Dkk-1 or a Wnt10b transgene. At 40 weeks of age, rats underwent surgical destabilization of the joint. At 50 weeks of age, stifle joints were submitted for micro-computed tomography and histopathological analysis. RESULTS Injection of either Wnt10b or Dkk-1 transgenes in stable joints improved bone architectural parameters, but worsened soft tissue integrity. Osteophytosis was decreased by Dkk-1, but unchanged by Wnt10b. Destabilization negatively influenced bone architecture, increased osteophytosis, and decreased soft tissue integrity. Dkk-1 exacerbated the negative effects of destabilization, whereas Wnt10b had little effect on these parameters. Osteophytosis was improved, whereas soft tissue integrity was worsened by both transgenes in destabilized joints. CONCLUSIONS The Wnt-inhibitor Dkk-1 does not appear to completely inhibit the effects of Wnt signaling on bone remodeling. In vivo upregulation of Wnt10b and its inhibitor, Dkk-1, can produce both parallel or contrasting phenotypic responses depending on the specific parameter measured and the fidelity of the examined joint. These observations elucidate different roles for Wnt signaling in stable versus destabilized joints and may help to explain the conflicting results previously reported for the role of Dkk-1 in joint disease.
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Affiliation(s)
- Jeffrey B. Mason
- Department of Clinical Studies, New Bolton Center, School of Veterinary Medicine, University of Pennsylvania, Kennett Square, PA.,Department of Animal, Dairy and Veterinary Sciences, Center for Integrated BioSystems, School of Veterinary Medicine, Utah State University, Logan, UT
| | - Brittney L. Gurda
- Gene Therapy Program, School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Kurt D. Hankenson
- Department of Clinical Studies, New Bolton Center, School of Veterinary Medicine, University of Pennsylvania, Kennett Square, PA
| | - Lindsey R. Harper
- Department of Veterinary Population Medicine, College of Veterinary Medicine, University of Minnesota, St. Paul, MN
| | - Cathy S Carlson
- Department of Veterinary Population Medicine, College of Veterinary Medicine, University of Minnesota, St. Paul, MN
| | - James M. Wilson
- Gene Therapy Program, School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Dean W. Richardson
- Department of Clinical Studies, New Bolton Center, School of Veterinary Medicine, University of Pennsylvania, Kennett Square, PA
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47
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Das Neves Borges P, Vincent TL, Marenzana M. Application of autofluorescence robotic histology for quantitative evaluation of the 3-dimensional morphology of murine articular cartilage. Microsc Res Tech 2017; 80:1351-1360. [PMID: 28963813 PMCID: PMC5725668 DOI: 10.1002/jemt.22948] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 09/04/2017] [Accepted: 09/18/2017] [Indexed: 12/17/2022]
Abstract
Murine models of osteoarthritis (OA) are increasingly important for understating pathogenesis and for testing new therapeutic approaches. Their translational potential is, however, limited by the reduced size of mouse limbs which requires a much higher resolution to evaluate their articular cartilage compared to clinical imaging tools. In experimental models, this tissue has been predominantly assessed by time-consuming histopathology using standardized semi-quantitative scoring systems. This study aimed to develop a novel imaging method for 3-dimensional (3D) histology of mouse articular cartilage, using a robotic system-termed here "3D histocutter"-which automatically sections tissue samples and serially acquires fluorescence microscopy images of each section. Tibiae dissected from C57Bl/6 mice, either naïve or OA-induced by surgical destabilization of the medial meniscus (DMM), were imaged using the 3D histocutter by exploiting tissue autofluorescence. Accuracy of 3D imaging was validated by ex vivo contrast-enhanced micro-CT and sensitivity to lesion detection compared with conventional histology. Reconstructions of tibiae obtained from 3D histocutter serial sections showed an excellent agreement with contrast-enhanced micro-CT reconstructions. Furthermore, osteoarthritic features, including articular cartilage loss and osteophytes, were also visualized. An in-house developed software allowed to automatically evaluate articular cartilage morphology, eliminating the subjectivity associated to semi-quantitative scoring and considerably increasing analysis throughput. The novelty of this methodology is, not only the increased throughput in imaging and evaluating mouse articular cartilage morphology starting from conventionally embedded samples, but also the ability to add the third dimension to conventional histomorphometry which might be useful to improve disease assessment in the model.
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Affiliation(s)
| | - Tonia L Vincent
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Roosevelt Drive, Oxford, United Kingdom
| | - Massimo Marenzana
- Department of Bioengineering, Imperial College London, London, United Kingdom.,Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Roosevelt Drive, Oxford, United Kingdom
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48
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Rowe MA, Harper LR, McNulty MA, Lau AG, Carlson CS, Leng L, Bucala RJ, Miller RA, Loeser RF. Reduced Osteoarthritis Severity in Aged Mice With Deletion of Macrophage Migration Inhibitory Factor. Arthritis Rheumatol 2017; 69:352-361. [PMID: 27564840 DOI: 10.1002/art.39844] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 08/09/2016] [Indexed: 12/17/2022]
Abstract
OBJECTIVE Macrophage migration inhibitory factor (MIF) is a proinflammatory cytokine that is elevated in the serum and synovial fluid of patients with osteoarthritis (OA). This study was undertaken to investigate the potential role of MIF in OA in human joint tissues and in vivo in mice with age-related and surgically induced OA. METHODS MIF in conditioned media from human chondrocytes and meniscal cells and from cartilage explants was measured by enzyme-linked immunosorbent assay. The severity of OA was analyzed histologically in male wild-type and MIF-/- mice at 12 and 22 months of age and following destabilization of the medial meniscus (DMM) surgery in 12-week-old MIF-/- mice as well as in wild-type mice treated with a neutralizing MIF antibody. Synovial hyperplasia was graded in S100A8-immunostained histologic sections. Bone morphometric parameters were measured by micro-computed tomography. RESULTS Human OA chondrocytes secreted 3-fold higher levels of MIF than normal chondrocytes, while normal and OA meniscal cells produced equivalent amounts. Compared to age- and strain-matched controls, the cartilage, bone, and synovium in older adult mice with MIF deletion were protected against changes of naturally occurring age-related OA. No protection against DMM-induced OA was seen in young adult MIF-/- mice or in wild-type mice treated with anti-MIF. Increased bone density in 8-week-old mice with MIF deletion was not maintained at 12 months. CONCLUSION These results demonstrate a differential mechanism in the pathogenesis of naturally occurring age-related OA compared to injury-induced OA. The inhibition of MIF may represent a novel therapeutic target in the reduction of the severity of age-related OA.
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Affiliation(s)
- Meredith A Rowe
- Wake Forest School of Medicine, Winston-Salem, North Carolina, and University of North Carolina at Chapel Hill
| | | | | | | | | | - Lin Leng
- Yale University, New Haven, Connecticut
| | | | | | - Richard F Loeser
- Wake Forest School of Medicine, Winston-Salem, North Carolina, and University of North Carolina at Chapel Hill
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49
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David MA, Smith MK, Pilachowski RN, White AT, Locke RC, Price C. Early, focal changes in cartilage cellularity and structure following surgically induced meniscal destabilization in the mouse. J Orthop Res 2017; 35:537-547. [PMID: 27664978 DOI: 10.1002/jor.23443] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Accepted: 09/15/2016] [Indexed: 02/06/2023]
Abstract
Post-traumatic osteoarthritis (PTOA) is an accelerated form of osteoarthritic cartilage degeneration affecting approximately 20-50% of patients experiencing joint injury. Currently PTOA is incurable; to better understand the etiology of PTOA and to develop rational anti-osteoarthritic therapies, it is critical to understand the spatiotemporal initiation and the progression of PTOA. In this study, we employed semi-quantitative histological scoring and quantitative damage analysis to examine disease progression in the murine destabilization of the medial meniscus (DMM) model of PTOA from early (3 days) through late- (112 days) disease timepoints. We observed significant, progressive articular cartilage (AC) cellular, and structural changes in the medial compartments of injured joints as early as 3 days. Spatially within the joint, cartilage damage (erosions) were observed anteriorly at 84 days. Furthermore, a drastic loss in chondrocyte number (by 3 days), surface damage (at 7 days), and cartilage erosion (at 84 days) was found to co-localize to the specific region of the medial tibial plateau AC that experienced a change in meniscal coverage due to meniscal extrusion following DMM. Taken together, these results suggest that DMM-mediated extrusion of the medial meniscus leads to rapid, spatially dependent changes in AC cellularity and structure, and precipitates the focal degeneration of cartilage associated with PTOA. Importantly, this study suggests that joint instability injuries may trigger immediate (<3 days) processes within a small population of chondrocytes that directs the initiation and progression of PTOA, and that development of chondroprotective strategies for preventing and/or delaying PTOA-related cartilage degeneration are best targeted toward these immediately early processes following joint injury. © 2016 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 35:537-547, 2017.
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Affiliation(s)
- Michael A David
- Department of Biomedical Engineering, University of Delaware, 161 Colburn Lab, Newark, Delaware, 19716
| | - Melanie K Smith
- Department of Biomedical Engineering, University of Delaware, 161 Colburn Lab, Newark, Delaware, 19716
| | - Rachael N Pilachowski
- Department of Biomedical Engineering, University of Delaware, 161 Colburn Lab, Newark, Delaware, 19716
| | - Avery T White
- Department of Biomedical Engineering, University of Delaware, 161 Colburn Lab, Newark, Delaware, 19716
| | - Ryan C Locke
- Department of Biomedical Engineering, University of Delaware, 161 Colburn Lab, Newark, Delaware, 19716
| | - Christopher Price
- Department of Biomedical Engineering, University of Delaware, 161 Colburn Lab, Newark, Delaware, 19716
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50
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Gibson AL, Hui Mingalone CK, Foote AT, Uchimura T, Zhang M, Zeng L. Wnt7a Inhibits IL-1β Induced Catabolic Gene Expression and Prevents Articular Cartilage Damage in Experimental Osteoarthritis. Sci Rep 2017; 7:41823. [PMID: 28165497 PMCID: PMC5292965 DOI: 10.1038/srep41823] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 12/28/2016] [Indexed: 12/27/2022] Open
Abstract
Wnt7a is a protein that plays a critical role in skeletal development. However, its effect on cartilage homeostasis under pathological conditions is not known. In this study, we found a unique inverse correlation between Wnt7a gene expression and that of MMP and IL-1β in individual human OA cartilage specimens. Upon ectopic expression in primary human articular chondrocytes, Wnt7a inhibited IL-1β-induced MMP and iNOS gene expression. Western blot analysis indicated that Wnt7a induced both canonical Wnt signaling and NFAT and Akt non-canonical signaling. Interestingly, inhibiting the canonical and Akt pathway did not affect Wnt7a activity. However, inhibiting the NFAT pathway impaired Wnt7a’s ability to inhibit MMP expression, suggesting that Wnt7a requires NFAT signaling to exert this function. In vivo, intraarticular injection of lentiviral Wnt7a strongly attenuated articular cartilage damage induced by destabilization of the medial meniscus (DMM) OA-inducing surgery in mice. Consistently, Wnt7a also inhibited the progressive increase of joint MMP activity in DMM animals. These results indicate that Wnt7a signaling inhibits inflammatory stimuli-induced catabolic gene expression in human articular chondrocytes and is sufficient to attenuate MMP activities and promote joint cartilage integrity in mouse experimental OA, demonstrating a novel effect of Wnt7a on regulating OA pathogenesis.
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Affiliation(s)
- Averi L Gibson
- Program in Cellular, Molecular, and Developmental Biology, Sackler School of Graduate Biomedical Sciences, Tufts University, Boston, MA 02111, USA.,Department of Integrative Physiology and Pathobiology, Tufts University School of Medicine, Boston, MA 02111, USA
| | - Carrie K Hui Mingalone
- Program in Cellular, Molecular, and Developmental Biology, Sackler School of Graduate Biomedical Sciences, Tufts University, Boston, MA 02111, USA.,Department of Integrative Physiology and Pathobiology, Tufts University School of Medicine, Boston, MA 02111, USA
| | - Andrea T Foote
- Department of Integrative Physiology and Pathobiology, Tufts University School of Medicine, Boston, MA 02111, USA
| | - Tomoya Uchimura
- Program in Cellular, Molecular, and Developmental Biology, Sackler School of Graduate Biomedical Sciences, Tufts University, Boston, MA 02111, USA.,Department of Integrative Physiology and Pathobiology, Tufts University School of Medicine, Boston, MA 02111, USA
| | - Ming Zhang
- Department of Rheumatology, Tufts Medical Center, 800 Washington Street, Boston, MA 02111, USA
| | - Li Zeng
- Program in Cellular, Molecular, and Developmental Biology, Sackler School of Graduate Biomedical Sciences, Tufts University, Boston, MA 02111, USA.,Department of Integrative Physiology and Pathobiology, Tufts University School of Medicine, Boston, MA 02111, USA.,Department of Orthopedics, Tufts Medical Center, 800 Washington Street, Boston, MA 02111, USA
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