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McCarthy GM, Stack J. Osteoarthritis and basic calcium phosphate crystals - The enemy lurks within! Osteoarthritis Cartilage 2024:S1063-4584(24)01322-0. [PMID: 39121948 DOI: 10.1016/j.joca.2024.07.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2024] [Revised: 07/19/2024] [Accepted: 07/30/2024] [Indexed: 08/12/2024]
Affiliation(s)
- Geraldine M McCarthy
- School of Medicine and Medical Science, University College Dublin and Department of Rheumatology, Mater Misericordiae University Hospital, Dublin, Ireland.
| | - John Stack
- School of Medicine and Medical Science, University College Dublin and Department of Rheumatology, Mater Misericordiae University Hospital, Dublin, Ireland
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Niessink T, Stassen RHMJ, Kischkel B, Vuscan P, Emans PJ, van den Akker GGH, Janssen M, Joosten LAB, Otto C, Welting TJM, Jansen TL. Discovery of calcite as a new pro-inflammatory calcium-containing crystal in human osteoarthritic synovial fluid. Osteoarthritis Cartilage 2024:S1063-4584(24)01203-2. [PMID: 38806070 DOI: 10.1016/j.joca.2024.05.004] [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: 01/11/2024] [Revised: 05/14/2024] [Accepted: 05/21/2024] [Indexed: 05/30/2024]
Abstract
OBJECTIVE We aimed to characterize calcium-containing crystals present in synovial fluid from patients with knee osteoarthritis (OA) using Raman spectroscopy, and specifically investigate the biological effects of calcite crystals. DESIGN Thirty-two synovial fluid samples were collected pre-operatively from knee OA patients undergoing total joint arthroplasty. An integrated Raman polarized light microscope was used for identification of crystals in synovial fluid. Human peripheral blood mononuclear cells (PBMC's), human OA articular chondrocytes (HACs) and fibroblast-like synoviocytes (FLSs) were exposed to calcite crystals. Expression of relevant cytokines and inflammatory genes were measured using ELISA and real-time PCR. RESULTS Various calcium-containing crystals were identified, including calcium pyrophosphate (37.5 %) and basic calcium phosphate (21.8 %), but they were never found simultaneously in the same OA synovial fluid sample. For the first time, we discovered the presence of calcite crystals in 93.8 % of the samples, while dolomite was detected in 25 % of the cases. Characterization of the cellular response to calcite crystal exposure revealed increased production of innate immune-derived cytokines by PBMC's, when co-stimulated with lipopolysaccharide (LPS). Additionally, calcite crystal stimulation of HACs and FLSs resulted in enhanced secretion of pro-inflammatory molecules and alterations in the expression of extracellular matrix remodeling enzymes. CONCLUSIONS This study highlights the unique role of Raman spectroscopy in OA crystal research and identified calcite as a novel pro-inflammatory crystal type in OA synovial fluid. Understanding the role of specific crystal species in the OA joint may open new avenues for pharmacological interventions and personalized approaches to treating OA.
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Affiliation(s)
- Tom Niessink
- Department of Rheumatology, VieCuri Medical Centre, Tegelseweg 210, 5912 BL Venlo, the Netherlands; Personalized Therapeutics and Diagnostics, Department of Bioengineering Technology, University of Twente, Drienerlolaan 5, 7522 NB Enschede, the Netherlands.
| | - Roderick H M J Stassen
- Department of Experimental Orthopaedics, Maastricht University Medical Centre, P. Debyelaan 25, 6229 HX Maastricht, the Netherlands
| | - Brenda Kischkel
- Department of Internal Medicine, Radboud University Medical Centre, Geert Grooteplein Zuid 8, 6525 GA Nijmegen, the Netherlands
| | - Patricia Vuscan
- Department of Internal Medicine, Radboud University Medical Centre, Geert Grooteplein Zuid 8, 6525 GA Nijmegen, the Netherlands
| | - Peter J Emans
- Department of Experimental Orthopaedics, Maastricht University Medical Centre, P. Debyelaan 25, 6229 HX Maastricht, the Netherlands
| | - Guus G H van den Akker
- Department of Experimental Orthopaedics, Maastricht University Medical Centre, P. Debyelaan 25, 6229 HX Maastricht, the Netherlands
| | - Matthijs Janssen
- Department of Rheumatology, VieCuri Medical Centre, Tegelseweg 210, 5912 BL Venlo, the Netherlands
| | - Leo A B Joosten
- Department of Internal Medicine, Radboud University Medical Centre, Geert Grooteplein Zuid 8, 6525 GA Nijmegen, the Netherlands; Department of Medical Genetics, Iuliu Hatieganu University of Medicine and Pharmacy, Str. Pasteur, Nr. 6, 400012 Cluj-Napoca, Romania
| | - Cees Otto
- Personalized Therapeutics and Diagnostics, Department of Bioengineering Technology, University of Twente, Drienerlolaan 5, 7522 NB Enschede, the Netherlands
| | - Tim J M Welting
- Department of Experimental Orthopaedics, Maastricht University Medical Centre, P. Debyelaan 25, 6229 HX Maastricht, the Netherlands
| | - Tim L Jansen
- Department of Rheumatology, VieCuri Medical Centre, Tegelseweg 210, 5912 BL Venlo, the Netherlands
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Cai R, Shan Y, Du F, Miao Z, Zhu L, Hang L, Xiao L, Wang Z. Injectable hydrogels as promising in situ therapeutic platform for cartilage tissue engineering. Int J Biol Macromol 2024; 261:129537. [PMID: 38278383 DOI: 10.1016/j.ijbiomac.2024.129537] [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: 11/06/2023] [Revised: 01/01/2024] [Accepted: 01/14/2024] [Indexed: 01/28/2024]
Abstract
Injectable hydrogels are gaining prominence as a biocompatible, minimally invasive, and adaptable platform for cartilage tissue engineering. Commencing with their synthesis, this review accentuates the tailored matrix formulations and cross-linking techniques essential for fostering three-dimensional cell culture and melding with complex tissue structures. Subsequently, it spotlights the hydrogels' enhanced properties, highlighting their augmented functionalities and broadened scope in cartilage tissue repair applications. Furthermore, future perspectives are advocated, urging continuous innovation and exploration to surmount existing challenges and harness the full clinical potential of hydrogels in regenerative medicine. Such advancements are crucial for validating the long-term efficacy and safety of hydrogels, positioning them as a promising direction in regenerative medicine to address cartilage-related ailments.
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Affiliation(s)
- Rong Cai
- Translational Medical Innovation Center, The Affiliated Zhangjiagang TCM Hospital of Yangzhou University, Zhangjiagang 215600, Jiangsu, China
| | - Yisi Shan
- Translational Medical Innovation Center, The Affiliated Zhangjiagang TCM Hospital of Yangzhou University, Zhangjiagang 215600, Jiangsu, China
| | - Fengyi Du
- Department of Gastroenterology, Affiliated Hospital of Jiangsu University, Jiangsu University, 212013, China
| | - Zhiwei Miao
- Translational Medical Innovation Center, The Affiliated Zhangjiagang TCM Hospital of Yangzhou University, Zhangjiagang 215600, Jiangsu, China
| | - Like Zhu
- Translational Medical Innovation Center, The Affiliated Zhangjiagang TCM Hospital of Yangzhou University, Zhangjiagang 215600, Jiangsu, China
| | - Li Hang
- Translational Medical Innovation Center, The Affiliated Zhangjiagang TCM Hospital of Yangzhou University, Zhangjiagang 215600, Jiangsu, China
| | - Long Xiao
- Translational Medical Innovation Center, The Affiliated Zhangjiagang TCM Hospital of Yangzhou University, Zhangjiagang 215600, Jiangsu, China.
| | - Zhirong Wang
- Translational Medical Innovation Center, The Affiliated Zhangjiagang TCM Hospital of Yangzhou University, Zhangjiagang 215600, Jiangsu, China.
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Schwab A, Bertrand J. Are basic calcium phosphate crystals the driver of inflammation in osteoarthritis? Osteoarthritis Cartilage 2023; 31:1001-1002. [PMID: 37236298 DOI: 10.1016/j.joca.2023.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/05/2023] [Accepted: 05/19/2023] [Indexed: 05/28/2023]
Affiliation(s)
- Andrea Schwab
- Department of Orthopedics and Sports Medicine, Erasmus MC, University Medical Center, Rotterdam, the Netherlands; Experimental Orthopedics, University Orthopedic Clinic, Medical Faculty, Otto-von-Guericke-University Magdeburg, Magdeburg, Germany
| | - Jessica Bertrand
- Experimental Orthopedics, University Orthopedic Clinic, Medical Faculty, Otto-von-Guericke-University Magdeburg, Magdeburg, Germanyretain-->
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