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Alvarez-Viejo M, Romero-Rosal L, Perez-Basterrechea M, García-Gala JM, Hernando-Rodriguez P, Marana-Gonzalez J, Rubiera-Valdes M, Vivanco-Allende B, Fernandez-Rodriguez A, Martinez-Revuelta E, Perez-Lopez S. Plasma-Based Scaffold Containing Bone-Marrow Mononuclear Cells Promotes Wound Healing in a Mouse Model of Pressure Injury. Cell Transplant 2024; 33:9636897241251619. [PMID: 38761062 PMCID: PMC11102697 DOI: 10.1177/09636897241251619] [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: 01/12/2024] [Revised: 04/10/2024] [Accepted: 04/12/2024] [Indexed: 05/20/2024] Open
Abstract
Pressure injuries, or pressure ulcers, are a common problem that may lead to infections and major complications, besides being a social and economic burden due to the costs of treatment and hospitalization. While surgery is sometimes necessary, this also has complications such as recurrence or wound dehiscence. Among the newer methods of pressure injury treatment, advanced therapies are an interesting option. This study examines the healing properties of bone marrow mononuclear cells (BM-MNCs) embedded in a plasma-based scaffold in a mouse model. Pressure ulcers were created on the backs of mice (2 per mouse) using magnets and assigned to a group of ulcers that were left untreated (Control, n = 15), treated with plasma scaffold (Plasma, n = 15), or treated with plasma scaffold containing BM-MNC (Plasma + BM-MNC, n = 15). Each group was examined at three time points (3, 7, and 14 days) after the onset of treatment. At each time point, animals were subjected to biometric assessment, bioluminescence imaging, and tomography. Once treatment had finished, skin biopsies were processed for histological and wound healing reverse transcription polymerase chain reaction (RT-PCR) array studies. While wound closure percentages were higher in the Plasma and Plasma + BM-MNC groups, differences were not significant, and thus descriptive data are provided. In all individuals, the presence of donor cells was revealed by immunohistochemistry on posttreatment onset Days 3, 7, and 14. In the Plasma + BM-MNC group, less inflammation was observed by positron emission tomography-computed tomography (PET/CT) imaging of the mice at 7 days, and a complete morphometabolic response was produced at 14 days, in accordance with histological results. A much more pronounced inflammatory process was observed in controls than in the other two groups, and this persisted until Day 14 after treatment onset. RT-PCR array gene expression patterns were also found to vary significantly, with the greatest difference noted between both treatments at 14 days when 11 genes were differentially expressed.
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Affiliation(s)
- Maria Alvarez-Viejo
- Unit of Cell Therapy and Regenerative Medicine, Department of Hematology and Hemotherapy, Central University Hospital of Asturias, Oviedo, Spain
- Health Research Institute of the Principality of Asturias-Foundation for Biomedical Research and Innovation in Asturias, Oviedo, Spain
- University of Oviedo, Oviedo, Spain
| | - Luis Romero-Rosal
- Department of Plastic and Reconstructive Surgery, Central University Hospital of Asturias, Oviedo, Spain
| | - Marcos Perez-Basterrechea
- Unit of Cell Therapy and Regenerative Medicine, Department of Hematology and Hemotherapy, Central University Hospital of Asturias, Oviedo, Spain
- Health Research Institute of the Principality of Asturias-Foundation for Biomedical Research and Innovation in Asturias, Oviedo, Spain
| | - Jose M. García-Gala
- Unit of Cell Therapy and Regenerative Medicine, Department of Hematology and Hemotherapy, Central University Hospital of Asturias, Oviedo, Spain
- Health Research Institute of the Principality of Asturias-Foundation for Biomedical Research and Innovation in Asturias, Oviedo, Spain
| | - Pablo Hernando-Rodriguez
- Health Research Institute of the Principality of Asturias-Foundation for Biomedical Research and Innovation in Asturias, Oviedo, Spain
| | | | - Miriam Rubiera-Valdes
- Pathological Anatomy Service, Central University Hospital of Asturias, Oviedo, Spain
| | | | - Angeles Fernandez-Rodriguez
- Unit of Cell Therapy and Regenerative Medicine, Department of Hematology and Hemotherapy, Central University Hospital of Asturias, Oviedo, Spain
- Health Research Institute of the Principality of Asturias-Foundation for Biomedical Research and Innovation in Asturias, Oviedo, Spain
| | - Eva Martinez-Revuelta
- Unit of Cell Therapy and Regenerative Medicine, Department of Hematology and Hemotherapy, Central University Hospital of Asturias, Oviedo, Spain
- Health Research Institute of the Principality of Asturias-Foundation for Biomedical Research and Innovation in Asturias, Oviedo, Spain
| | - Silvia Perez-Lopez
- Unit of Cell Therapy and Regenerative Medicine, Department of Hematology and Hemotherapy, Central University Hospital of Asturias, Oviedo, Spain
- Health Research Institute of the Principality of Asturias-Foundation for Biomedical Research and Innovation in Asturias, Oviedo, Spain
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2
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Smolinska A, Bzinkowska A, Rybkowska P, Chodkowska M, Sarnowska A. Promising Markers in the Context of Mesenchymal Stem/Stromal Cells Subpopulations with Unique Properties. Stem Cells Int 2023; 2023:1842958. [PMID: 37771549 PMCID: PMC10533301 DOI: 10.1155/2023/1842958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 08/11/2023] [Accepted: 08/25/2023] [Indexed: 09/30/2023] Open
Abstract
The heterogeneity of the mesenchymal stem/stromal cells (MSCs) population poses a challenge to researchers and clinicians, especially those observed at the population level. What is more, the lack of precise evidences regarding MSCs developmental origin even further complicate this issue. As the available evidences indicate several possible pathways of MSCs formation, this diverse origin may be reflected in the unique subsets of cells found within the MSCs population. Such populations differ in specialization degree, proliferation, and immunomodulatory properties or exhibit other additional properties such as increased angiogenesis capacity. In this review article, we attempted to identify such outstanding populations according to the specific surface antigens or intracellular markers. Described groups were characterized depending on their specialization and potential therapeutic application. The reports presented here cover a wide variety of properties found in the recent literature, which is quite scarce for many candidates mentioned in this article. Even though the collected information would allow for better targeting of specific subpopulations in regenerative medicine to increase the effectiveness of MSC-based therapies.
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Affiliation(s)
- Agnieszka Smolinska
- Translational Platform for Regenerative Medicine, Mossakowski Medical Research Institute, Polish Academy of Sciences, 02-106, Warsaw, Poland
| | - Aleksandra Bzinkowska
- Translational Platform for Regenerative Medicine, Mossakowski Medical Research Institute, Polish Academy of Sciences, 02-106, Warsaw, Poland
| | - Paulina Rybkowska
- Translational Platform for Regenerative Medicine, Mossakowski Medical Research Institute, Polish Academy of Sciences, 02-106, Warsaw, Poland
| | - Magdalena Chodkowska
- Translational Platform for Regenerative Medicine, Mossakowski Medical Research Institute, Polish Academy of Sciences, 02-106, Warsaw, Poland
| | - Anna Sarnowska
- Translational Platform for Regenerative Medicine, Mossakowski Medical Research Institute, Polish Academy of Sciences, 02-106, Warsaw, Poland
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3
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Hegarty C, Neto N, Cahill P, Floudas A. Computational approaches in rheumatic diseases - Deciphering complex spatio-temporal cell interactions. Comput Struct Biotechnol J 2023; 21:4009-4020. [PMID: 37649712 PMCID: PMC10462794 DOI: 10.1016/j.csbj.2023.08.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 08/04/2023] [Accepted: 08/04/2023] [Indexed: 09/01/2023] Open
Abstract
Inflammatory arthritis, including rheumatoid (RA), and psoriatic (PsA) arthritis, are clinically and immunologically heterogeneous diseases with no identified cure. Chronic inflammation of the synovial tissue ushers loss of function of the joint that severely impacts the patient's quality of life, eventually leading to disability and life-threatening comorbidities. The pathogenesis of synovial inflammation is the consequence of compounded immune and stromal cell interactions influenced by genetic and environmental factors. Deciphering the complexity of the synovial cellular landscape has accelerated primarily due to the utilisation of bulk and single cell RNA sequencing. Particularly the capacity to generate cell-cell interaction networks could reveal evidence of previously unappreciated processes leading to disease. However, there is currently a lack of universal nomenclature as a result of varied experimental and technological approaches that discombobulates the study of synovial inflammation. While spatial transcriptomic analysis that combines anatomical information with transcriptomic data of synovial tissue biopsies promises to provide more insights into disease pathogenesis, in vitro functional assays with single-cell resolution will be required to validate current bioinformatic applications. In order to provide a comprehensive approach and translate experimental data to clinical practice, a combination of clinical and molecular data with machine learning has the potential to enhance patient stratification and identify individuals at risk of arthritis that would benefit from early therapeutic intervention. This review aims to provide a comprehensive understanding of the effect of computational approaches in deciphering synovial inflammation pathogenesis and discuss the impact that further experimental and novel computational tools may have on therapeutic target identification and drug development.
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Affiliation(s)
- Ciara Hegarty
- Translational Immunology lab, School of Biotechnology, Dublin City University, Dublin, Ireland
| | - Nuno Neto
- Trinity Centre for Biomedical Engineering, Trinity College Dublin, Ireland
| | - Paul Cahill
- Vascular Biology lab, School of Biotechnology, Dublin City University, Dublin, Ireland
| | - Achilleas Floudas
- Translational Immunology lab, School of Biotechnology, Dublin City University, Dublin, Ireland
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Impact of Isolation Procedures on the Development of a Preclinical Synovial Fibroblasts/Macrophages in an In Vitro Model of Osteoarthritis. BIOLOGY 2020; 9:biology9120459. [PMID: 33321965 PMCID: PMC7764613 DOI: 10.3390/biology9120459] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 11/25/2020] [Accepted: 12/07/2020] [Indexed: 12/13/2022]
Abstract
Simple Summary In vitro models able to represent osteoarthritis (OA) synovial tissue (ST) inflammation are lacking. Therefore, we aimed to characterize OA ST and to compare mechanical and enzymatic digestion procedures to find the one that better preserve the heterogeneity of the main OA synovial cell populations: fibroblasts and macrophages. We demonstrated that typical macrophage phenotypical markers, like CD68, CD80 and CD163, were higher expressed on cells isolated with mechanical than enzymatic procedure. Moreover, we found that typical cytokines of inflammatory macrophages (i.e., TNFα) and anti-inflammatory macrophages (i.e., IL10) were also higher on mechanically isolated cells. Synovial fibroblasts were well conserved in both procedures. The definition of an OA ST model in vitro that better preserve the heterogeneity of specific cell populations represents a prerequisite for defining the real effects of new cell therapies or drugs for OA treatment, and could contribute to the reduction or avoidance of animal models. Abstract There is a lack ofin vitromodels able to properly represent osteoarthritis (OA) synovial tissue (ST). We aimed to characterize OA ST and to investigate whether a mechanical or enzymatic digestion procedures influence synovial cell functional heterogeneity in vitro. Procedures using mechanical nondigested fragments (NDF), synovial digested fragments (SDF), and filtrated synovial digested cells (SDC) were compared. An immunophenotypic profile was performed to distinguish synovial fibroblasts (CD55, CD73, CD90, CD106), macrophages (CD14, CD68), M1-like (CD80, CD86), and M2-like (CD163, CD206) synovial macrophages. Pro-inflammatory (interleukin 6 IL6), tumor necrosis factor alpha (TNFα), chemokine C-C motif ligand 3 (CCL3/MIP1α), C-X- motif chemokine ligand 10 (CXCL10/IP10) and anti-inflammatory (interleukin 10 (IL10)), transforming growth factor beta 1 (TGFβ1), C-C motif chemokine ligand 18 (CCL18) cytokines were evaluated. CD68 and CD163 markers were higher in NDF and SDF compared to the SDC procedure, while CD80, CD86, and CD206 were higher only in NDF compared to the SDC procedure. Synovial fibroblast markers showed similar percentages. TNFα, CCL3/MIP1α, CXCL10/IP10, and CCL18 were higher in NDF compared to SDC, but not compared to SDF. IL10 and TGFβ1 were higher in NDF than SDC at the molecular level, while IL6 did not show differences among procedures. We demonstrated that NDF isolation procedures better preserved the heterogeneity of specific OA synovial populations (fibroblasts, macrophages), fostering their use for testing new cell therapies or drugs for OA, reducing or avoiding the use of animal models.
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High-Dimensional Analysis of Immune Cell Composition Predicts Periprosthetic Joint Infections and Dissects Its Pathophysiology. Biomedicines 2020; 8:biomedicines8090358. [PMID: 32957521 PMCID: PMC7554968 DOI: 10.3390/biomedicines8090358] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 09/06/2020] [Accepted: 09/15/2020] [Indexed: 12/12/2022] Open
Abstract
Accurate diagnosis of periprosthetic joint infections (PJI) is one of the most widely researched areas in modern orthopedic endoprosthesis. However, our understanding of the immunological basis of this severe complication is still limited. In this study, we developed a flow cytometric approach to precisely characterize the immune cell composition in periprosthetic joints. Using high-dimensional multi-parametric data, we defined, for the first time, the local immune cell populations of artificial joints. We identified significant differences in the cellular distribution between infected and non-infected samples, and revealed that myeloid-derived suppressor cells (MDSCs) act as potential regulators of infiltrating immune cells in PJI. Further, we developed an algorithm to predict septic and aseptic samples with high sensitivity and specificity, that may serve as an indispensable addition to the current criteria of the Musculoskeletal Infection Society. This study describes a novel approach to flow cytometrically analyze the immune cell infiltrate of joint fluid that not only improves our understanding of the pathophysiology of PJI, but also enables the development of a novel screening tool to predict infection status. Our data further suggest that pharmacological targeting of MDSCs represents a novel strategy for addressing PJI.
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Dual Network Hydrogels Incorporated with Bone Morphogenic Protein-7-Loaded Hyaluronic Acid Complex Nanoparticles for Inducing Chondrogenic Differentiation of Synovium-Derived Mesenchymal Stem Cells. Pharmaceutics 2020; 12:pharmaceutics12070613. [PMID: 32630047 PMCID: PMC7407334 DOI: 10.3390/pharmaceutics12070613] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 06/19/2020] [Accepted: 06/26/2020] [Indexed: 01/30/2023] Open
Abstract
Alginate-poloxamer (ALG-POL) copolymer with optimal POL content was synthesized, and it was combined with silk fibroin (SF) for building ALG-POL/SF dual network hydrogels. Hyaluronic acid(HA)/chitosan-poly(dioxanone)(CH-PDO) complex nanoparticles (NPs) with optimized composition and high encapsulation efficiency were employed as a vehicle for loading bone morphogenic protein-7 (BMP-7). BMP-7-loaded HA/CH-PDO NPs were incorporated into ALG-POL/SF hydrogel for constructing composite gels to achieve controlled release of BMP-7. These gels showed thermosensitive sol-gel transitions near physiological temperature and pH; and they were tested to be elastic, tough and strong. Some gels exhibited abilities to administer the BMP-7 release in nearly linear manners for a few weeks. Synovium-derived mesenchymal stem cells (SMSCs) were seeded into optimally fabricated gels for assessing their chondrogenic differentiation potency. Real-time PCR analyses showed that the blank ALG-POL/SF gels were not able to induce the chondrogenic differentiation of SMSCs, whereas SMSCs were detected to significantly express cartilage-related genes once they were seeded in the BMP-7-loaded ALG-POL/SF gel for two weeks. The synthesis of cartilaginous matrix components further confirmed that SMSCs seeded in the BMP-7-loaded ALG-POL/SF gel differentiated toward chondrogenesis. Results suggest that BMP-7-loaded ALG-POL/SF composite gels can function as a promising biomaterial for cartilage tissue engineering applications.
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Small A, Wechalekar MD. Synovial biopsies in inflammatory arthritis: precision medicine in rheumatoid arthritis. Expert Rev Mol Diagn 2020; 20:315-325. [PMID: 31865803 DOI: 10.1080/14737159.2020.1707671] [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] [Indexed: 12/21/2022]
Abstract
Introduction: Synovial tissue (ST) is composed of a lining and sublining layer and is the target tissue involved in the inflammatory arthritides (IA), in which there is lining layer hyperplasia, inflammatory cell influx, macrophage recruitment and change in number and behavior of lining fibroblasts. Understanding synovial pathology has been critical in providing insights into pathogenetic mechanisms of disease and therapeutics. Pathobiological insights into ST have been underpinned by progress in molecular analytic methods; research in this area holds promise in individualizing treatment and optimizing response.Areas covered: We explore ST in IA and cover in-depth the utility of synovial biopsy and ST heterogeneity. We review recent advances in ST research and discuss implications with regards to therapeutic response. Finally, we provide perspectives on the identification of new drug targets and new diagnostic and prognostic markers.Expert opinion: ST holds the potential to individualize therapy by detecting biomarkers of diagnosis, therapeutic choice, and treatment modification in IA. Advances in molecular biology including high-throughput omics are likely to provide information that has hitherto remained unknown. ST analyzes pre- and post-treatment needs to be standard of care; only by routinely collecting and analyzing ST will we achieve the precision medicine outcomes described herein.
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Affiliation(s)
- Annabelle Small
- College of Medicine & Public Health, Flinders University, Adelaide, SA, Australia
| | - Mihir D Wechalekar
- College of Medicine & Public Health, Flinders University, Adelaide, SA, Australia.,Rheumatology Department, Flinders Medical Centre, Adelaide, SA, Australia
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8
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Khan MR, Smith RK, David F, Lam R, Hughes G, De Godoy R, Carr AJ, Goodship AE, Dudhia J. Evaluation of the Effects of Synovial Multipotent Cells on Deep Digital Flexor Tendon Repair in a Large Animal Model of Intra-Synovial Tendinopathy. J Orthop Res 2020; 38:128-138. [PMID: 31329308 PMCID: PMC6973225 DOI: 10.1002/jor.24423] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 07/10/2019] [Indexed: 02/04/2023]
Abstract
Intra-synovial tendon injuries are a common orthopedic problem with limited treatment options. The synovium is a specialized connective tissue forming the inner encapsulating lining of diarthrodial joints and intra-synovial tendons. It contains multipotent mesenchymal stromal cells that render it a viable source of progenitors for tendon repair. This study evaluated the effects of autologous implantation of cells derived from normal synovium (synovial membrane cells [SMCs]) in augmenting repair in an ovine model of intra-synovial tendon injury. For this purpose, synovial biopsies were taken from the right digital flexor tendon sheath following creation of a defect to the lateral deep digital flexor tendon. Mononuclear cells were isolated by partial enzymatic digestion and assessed for MSC characteristics. Cell tracking and tendon repair were assessed by implanting 5 × 106 cells into the digital flexor tendon sheath under ultrasound guidance with the effects evaluated using magnetic resonance imaging and histopathology. Synovial biopsies yielded an average 4.0 × 105 ± 2.7 × 105 SMCs that exhibited a fibroblastic morphology, variable osteogenic, and adipogenic responses but were ubiquitously strongly chondrogenic. SMCs displayed high expression of CD29 with CD271NEGATIVE and MHC-IILOW cell-surface marker profiles, and variable expression of CD73, CD90, CD105, CD166, and MHC-I. Implanted SMCs demonstrated engraftment within the synovium, though a lack of repair of the tendon lesion over 24 weeks was observed. We conclude healthy synovium is a viable source of multipotent cells, but that the heterogeneity of synovium underlies the variability between different SMC populations, which while capable of engraftment and persistence within the synovium exhibit limited capacity of influencing tendon repair. © 2019 The Authors. Journal of Orthopaedic Research® published by Wiley Periodicals, Inc. on behalf of Orthopaedic Research Society J Orthop Res 38:128-138, 2020.
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Affiliation(s)
- Mohammad R. Khan
- Clinical Sciences and ServicesRoyal Veterinary CollegeHawkshead LaneHertfordshireAL9 7TAUnited Kingdom
| | - Roger K. Smith
- Clinical Sciences and ServicesRoyal Veterinary CollegeHawkshead LaneHertfordshireAL9 7TAUnited Kingdom
| | - Frederic David
- Clinical Sciences and ServicesRoyal Veterinary CollegeHawkshead LaneHertfordshireAL9 7TAUnited Kingdom
| | - Richard Lam
- Clinical Sciences and ServicesRoyal Veterinary CollegeHawkshead LaneHertfordshireAL9 7TAUnited Kingdom
| | - Gillian Hughes
- Clinical Sciences and ServicesRoyal Veterinary CollegeHawkshead LaneHertfordshireAL9 7TAUnited Kingdom
| | - Roberta De Godoy
- Writtle Agricultural CollegeLordship RoadChelmsfordEssexCM1 3RRUnited Kingdom
| | - Andrew J. Carr
- Botnar Research Centre, Institute of Musculoskeletal SciencesUniversity of OxfordOxfordOX3 7LDUnited Kingdom
| | - Allen E. Goodship
- UCL Institute of Orthopaedics and Musculoskeletal Science (IOMS)StanmoreHA7 4LPUnited Kingdom
| | - Jayesh Dudhia
- Clinical Sciences and ServicesRoyal Veterinary CollegeHawkshead LaneHertfordshireAL9 7TAUnited Kingdom
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Mantripragada VP, Piuzzi NS, Bova WA, Boehm C, Obuchowski NA, Lefebvre V, Midura RJ, Muschler GF. Donor-matched comparison of chondrogenic progenitors resident in human infrapatellar fat pad, synovium, and periosteum - implications for cartilage repair. Connect Tissue Res 2019; 60:597-610. [PMID: 31020864 DOI: 10.1080/03008207.2019.1611795] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Purpose: There is a clinical need to better characterize tissue sources being used for stem cell therapies. This study focuses on comparison of cells and connective tissue progenitors (CTPs) derived from native human infrapatellar fatpad (IPFP), synovium (SYN), and periosteum (PERI). Materials and Methods: IPFP, SYN, PERI were harvested from twenty-eight patients undergoing arthroplasty. CTPs were quantitatively characterized using automated colony-forming-unit assay to compare total nucleated cell concentration-[Cell], cells/mg; prevalence-(PCTP), CTPs/million nucleated cells; CTP concentration-[CTP], CTPs/mg; proliferation and differentiation potential; and correlate outcomes with patient's age and gender. Results: [Cell] did not differ between IPFP, SYN, and PERI. PCTP was influenced by age and gender: patients >60 years, IPFP and SYN had higher PCTP than PERI (p < 0.001) and females had higher PCTP in IPFP (p < 0.001) and SYN (p = 0.001) than PERI. [CTP] was influenced by age: patients <50 years, SYN (p = 0.0165) and PERI (p < 0.001) had higher [CTP] than IPFP; patients between 60 and 69 years, SYN (p < 0.001) had higher [CTP] than PERI; patients >70 years, IPFP (p = 0.006) had higher [CTP] than PERI. In patients >60 years, proliferation potential of CTPs differed significantly (SYN>IPFP>PERI); however, differentiation potentials were comparable between all three tissue sources. Conclusion: SYN and IPFP may serve as a preferred tissue source for patients >60 years, and PERI along with SYN and IPFP may serve as a preferred tissue source for patients <60 years for cartilage repair. However, the heterogeneity among the CTPs in any given tissue source suggests performance-based selection might be useful to optimize cell-sourcing strategies to improve efficacy of cellular therapies for cartilage repair.
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Affiliation(s)
- V P Mantripragada
- Department of Biomedical Engineering, Lerner Research Institute , Cleveland , OH , USA
| | - N S Piuzzi
- Department of Biomedical Engineering, Lerner Research Institute , Cleveland , OH , USA.,Department of Orthopedic Surgery, Cleveland Clinic , Cleveland , OH , USA.,Department of Orthopaedic Surgery, Instituto Universitario del Hospital Italiano de Buenos Aires , Buenos Aires , Argentina
| | - W A Bova
- Department of Biomedical Engineering, Lerner Research Institute , Cleveland , OH , USA
| | - C Boehm
- Department of Biomedical Engineering, Lerner Research Institute , Cleveland , OH , USA
| | - N A Obuchowski
- Department of Quantitative Health Science, Cleveland Clinic , Cleveland , OH , USA
| | - V Lefebvre
- Department of Cellular and Molecular Medicine, Cleveland Clinic , Cleveland , OH , USA
| | - R J Midura
- Department of Biomedical Engineering, Lerner Research Institute , Cleveland , OH , USA
| | - G F Muschler
- Department of Biomedical Engineering, Lerner Research Institute , Cleveland , OH , USA.,Department of Orthopedic Surgery, Cleveland Clinic , Cleveland , OH , USA
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Garg A, Yuen S, Seekhao N, Yu G, Karwowski JAC, Powell M, Sakata JT, Mongeau L, JaJa J, Li-Jessen NYK. Towards a Physiological Scale of Vocal Fold Agent-Based Models of Surgical Injury and Repair: Sensitivity Analysis, Calibration and Verification. APPLIED SCIENCES (BASEL, SWITZERLAND) 2019; 9:2974. [PMID: 31372307 PMCID: PMC6675024 DOI: 10.3390/app9152974] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Agent based models (ABM) were developed to numerically simulate the biological response to surgical vocal fold injury and repair at the physiological level. This study aimed to improve the representation of existing ABM through a combination of empirical and computational experiments. Empirical data of vocal fold cell populations including neutrophils, macrophages and fibroblasts were obtained using flow cytometry up to four weeks following surgical injury. Random Forests were used as a sensitivity analysis method to identify model parameters that were most influential to ABM outputs. Statistical Parameter Optimization Tool for Python was used to calibrate those parameter values to match the ABM-simulation data with the corresponding empirical data from Day 1 to Day 5 following surgery. Model performance was evaluated by verifying if the empirical data fell within the 95% confidence intervals of ABM outputs of cell quantities at Day 7, Week 2 and Week 4. For Day 7, all empirical data were within the ABM output ranges. The trends of ABM-simulated cell populations were also qualitatively comparable to those of the empirical data beyond Day 7. Exact values, however, fell outside of the 95% statistical confidence intervals. Parameters related to fibroblast proliferation were indicative to the ABM-simulation of fibroblast dynamics in final stages of wound healing.
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Affiliation(s)
- Aman Garg
- Department of Biological and Biomedical Engineering, McGill University, Montreal, QC H3A 0G4, Canada
| | - Samson Yuen
- School of Communication Sciences and Disorders, McGill University, Montreal, QC H3A 1G1, Canada
| | - Nuttiiya Seekhao
- Department of Electrical and Computer Engineering, University of Maryland, College Park, MD 20742, USA
| | - Grace Yu
- School of Communication Sciences and Disorders, McGill University, Montreal, QC H3A 1G1, Canada
| | | | - Michael Powell
- Virginia Tech Carilion Research Institute, Roanoke, VA 24016, USA
| | - Jon T. Sakata
- Department of Biology, McGill University, Montreal, QC H3A 1G1, Canada
| | - Luc Mongeau
- Department of Mechanical Engineering, McGill University, Montreal, QC H3A 0G4, Canada
| | - Joseph JaJa
- Department of Electrical and Computer Engineering, University of Maryland, College Park, MD 20742, USA
| | - Nicole Y. K. Li-Jessen
- Department of Biological and Biomedical Engineering, McGill University, Montreal, QC H3A 0G4, Canada
- School of Communication Sciences and Disorders, McGill University, Montreal, QC H3A 1G1, Canada
- Department of Otolaryngology–Head and Neck Surgery, McGill University, Montreal, QC H3A 1G1, Canada
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11
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Wang W, Wang L, Gulko PS, Zhu J. Computational deconvolution of synovial tissue cellular composition: presence of adipocytes in synovial tissue decreased during arthritis pathogenesis and progression. Physiol Genomics 2019; 51:241-253. [PMID: 31100034 PMCID: PMC6620645 DOI: 10.1152/physiolgenomics.00009.2019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 04/18/2019] [Accepted: 05/13/2019] [Indexed: 01/15/2023] Open
Abstract
Osteoarthritis (OA) and rheumatoid arthritis (RA) are the most common forms of arthritis. The synovial tissue is the major site of inflammation of OA and RA and consists of diverse cells. Synovial tissue cell composition changes during arthritis pathogenesis and progression have not been systematically characterized and may provide critical insights into disease processes. In this study we aimed at systematically examining cellular changes in synovial tissue. Publicly available synovial tissue transcriptomic data sets were used. We computationally estimated cell compositions in synovial tissue based on transcriptomic data and compared cell compositions in different diseases or at different disease stages. Synovial fibroblasts, macrophages, adipocytes, and immune cells were the major cell types in all synovial tissue. Both OA and RA patients had a significantly lower adipocyte fraction compared with healthy controls. The decrease trend was also observed during OA and RA progression. The fraction of monocytes was also increased in both OA and RA arthritis patients, consistent with the observations that inflammation involved in both OA and RA. But the monocyte fraction in RAs was much higher than the ones in healthy controls and OAs. The M2 macrophage fraction was reduced in RA compared with OA, the reduction trend continued during RA progression from the early- to the late-stage. There were consistent cell composition differences between different types or stages of arthritis. Both in RA and OA, the new discovery of changes in the adipocyte and M2 macrophage fractions has potential leading to novel therapeutic development.
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Affiliation(s)
- Wenhui Wang
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai , New York, New York
- Icahn Institute for Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai , New York, New York
| | - Li Wang
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai , New York, New York
- Icahn Institute for Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai , New York, New York
- Sema4, a Mount Sinai venture, Stamford, Connecticut
| | - Percio S Gulko
- Division of Rheumatology, Department of Medicine, Icahn School of Medicine at Mount Sinai , New York
| | - Jun Zhu
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai , New York, New York
- Icahn Institute for Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai , New York, New York
- Sema4, a Mount Sinai venture, Stamford, Connecticut
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12
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Novel Hybrid Gels Made of High and Low Molecular Weight Hyaluronic Acid Induce Proliferation and Reduce Inflammation in an Osteoarthritis In Vitro Model Based on Human Synoviocytes and Chondrocytes. BIOMED RESEARCH INTERNATIONAL 2019; 2019:4328219. [PMID: 31179322 PMCID: PMC6507116 DOI: 10.1155/2019/4328219] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 03/07/2019] [Accepted: 04/01/2019] [Indexed: 12/22/2022]
Abstract
High molecular weight hyaluronan (H-HA) has a pivotal role in the maintenance of normal functions of synovial fluid and structure of the articular joint, but it has been shown that its concentration is reduced in patients affected by degenerative cartilage diseases, such as osteoarthritis (OA). The aim of this study was to investigate the anti-inflammatory effects and properties of hybrid cooperative complexes based on high and low molecular weight hyaluronan (HCC) compared to H-HA on human primary cells derived by pathological joints. In addition, the rheological behavior of HCC was evaluated in order to define their potential as viscosupplement gel in degenerated joints. The experiments were performed using an in vitro model of OA based on human chondrocytes and synoviocytes isolated from degenerated joints of patients hospitalized for surgical replacement. In order to assess the anti-inflammatory effects of HCC, we evaluated NF-kB, COMP-2, IL-6, and IL-8 as specific markers at the transcriptional and/or protein level. Moreover, the proliferative properties of HCC were assessed using time lapse video microscopy. We showed that chondrocytes and synoviocytes clearly presented an altered cytokine profile compatible with a severe ongoing inflammation status. H-HA and, above all, HCC significantly reduced levels of the specific biomarkers evaluated and improved cartilage healing. The rheological profile indicated HCC suitability for intra-articular injection in joint diseases. HCC viscoelastic properties and the protective/anti-inflammatory effect on human chondrocytes and synoviocytes suggest the novel HCC-based gels as a valid support for OA management.
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13
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Affan A, Al-Jezani N, Railton P, Powell JN, Krawetz RJ. Multiple mesenchymal progenitor cell subtypes with distinct functional potential are present within the intimal layer of the hip synovium. BMC Musculoskelet Disord 2019; 20:125. [PMID: 30909916 PMCID: PMC6434889 DOI: 10.1186/s12891-019-2495-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 03/05/2019] [Indexed: 12/18/2022] Open
Abstract
Background The synovial membrane adjacent to the articular cartilage is home to synovial mesenchymal progenitor cell (sMPC) populations that have the ability to undergo chondrogenesis. While it has been hypothesized that multiple subtypes of stem and progenitor cells exist in vivo, there is little evidence supporting this hypothesis in human tissues. Furthermore, in most of the published literature on this topic, the cells are cultured before derivation of clonal populations. This gap in the literature makes it difficult to determine if there are distinct MPC subtypes in human synovial tissues, and if so, if these sMPCs express any markers in vivo/in situ that provide information in regards to the function of specific MPC subtypes (e.g. cells with increased chondrogenic capacity)? Therefore, the current study was undertaken to determine if any of the classical MPC cell surface markers provide insight into the differentiation capacity of sMPCs. Methods Clonal populations of sMPCs were derived from a cohort of patients with hip osteoarthritis (OA) and patients at high risk to develop OA using indexed cell sorting. Tri-differentiation potential and cell surface receptor expression of the resultant clones was determined. Results A number of clones with distinct differentiation potential were derived from this cohort, yet the most common cell surface marker profile on MPCs (in situ) that demonstrated chondrogenic potential was determined to be CD90+/CD44+/CD73+. A validation cohort was employed to isolate cells with only this cell surface profile. Isolating cells directly from human synovial tissue with these three markers alone, did not enrich for cells with chondrogenic capacity. Conclusions Therefore, additional markers are required to further discriminate the heterogeneous subtypes of MPCs and identify sMPCs with functional properties that are believed to be advantageous for clinical application. Electronic supplementary material The online version of this article (10.1186/s12891-019-2495-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Asmaa Affan
- McCaig Institute for Bone and Joint Health, Faculty of Medicine, University of Calgary, 3330 Hospital Drive NW, Calgary, Alberta, T2N 4N1, Canada.,University of Calgary, Biomedical Engineering Graduate Program, Calgary, Canada
| | - Nedaa Al-Jezani
- McCaig Institute for Bone and Joint Health, Faculty of Medicine, University of Calgary, 3330 Hospital Drive NW, Calgary, Alberta, T2N 4N1, Canada.,University of Calgary, Medical Science Graduate Program, Calgary, AB, Canada
| | - Pamela Railton
- University of Calgary, Department of Surgery, Calgary, Alberta, Canada.,Charles Sturt University, Orange, Australia
| | - James N Powell
- McCaig Institute for Bone and Joint Health, Faculty of Medicine, University of Calgary, 3330 Hospital Drive NW, Calgary, Alberta, T2N 4N1, Canada.,University of Calgary, Department of Surgery, Calgary, Alberta, Canada
| | - Roman J Krawetz
- McCaig Institute for Bone and Joint Health, Faculty of Medicine, University of Calgary, 3330 Hospital Drive NW, Calgary, Alberta, T2N 4N1, Canada. .,University of Calgary, Biomedical Engineering Graduate Program, Calgary, Canada. .,University of Calgary, Department of Surgery, Calgary, Alberta, Canada. .,University of Calgary, Department of Anatomy and Cell Biology, Calgary, Alberta, Canada.
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14
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Wang W, Han ZC. Heterogeneity of Human Mesenchymal Stromal/Stem Cells. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1123:165-177. [DOI: 10.1007/978-3-030-11096-3_10] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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15
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Moise N, Friedman A. Rheumatoid arthritis - a mathematical model. J Theor Biol 2019; 461:17-33. [DOI: 10.1016/j.jtbi.2018.10.039] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 09/17/2018] [Accepted: 10/18/2018] [Indexed: 12/18/2022]
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16
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Kouroupis D, Sanjurjo-Rodriguez C, Jones E, Correa D. Mesenchymal Stem Cell Functionalization for Enhanced Therapeutic Applications. TISSUE ENGINEERING PART B-REVIEWS 2018; 25:55-77. [PMID: 30165783 DOI: 10.1089/ten.teb.2018.0118] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
IMPACT STATEMENT Culture expansion of MSCs has detrimental effects on various cell characteristics and attributes (e.g., phenotypic changes and senescence), which, in addition to inherent interdonor variability, negatively impact the standardization and reproducibility of their therapeutic potential. The identification of innate distinct functional MSC subpopulations, as well as the description of ex vivo protocols aimed at maintaining phenotypes and enhancing specific functions have the potential to overcome these limitations. The incorporation of those approaches into cell-based therapy would significantly impact the field, as more reproducible clinical outcomes may be achieved.
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Affiliation(s)
- Dimitrios Kouroupis
- 1 Department of Orthopedics, UHealth Sports Medicine Institute, University of Miami Miller School of Medicine, Miami, Florida.,2 Diabetes Research Institute & Cell Transplant Center, University of Miami Miller School of Medicine, Miami, Florida
| | - Clara Sanjurjo-Rodriguez
- 3 Leeds Institute of Rheumatic and Musculoskeletal Disease, Saint James University Hospital, University of Leeds, Leeds, United Kingdom.,4 Department of Biomedical Sciences, Medicine and Physiotherapy, University of A Coruña, CIBER-BBN-Institute of Biomedical Research of A Coruña (INIBIC), A Coruña, Spain
| | - Elena Jones
- 3 Leeds Institute of Rheumatic and Musculoskeletal Disease, Saint James University Hospital, University of Leeds, Leeds, United Kingdom
| | - Diego Correa
- 1 Department of Orthopedics, UHealth Sports Medicine Institute, University of Miami Miller School of Medicine, Miami, Florida.,2 Diabetes Research Institute & Cell Transplant Center, University of Miami Miller School of Medicine, Miami, Florida
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17
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Aanei CM, Catafal LC. Evaluation of bone marrow microenvironment could change how myelodysplastic syndromes are diagnosed and treated. Cytometry A 2018; 93:916-928. [PMID: 30211968 DOI: 10.1002/cyto.a.23506] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 05/06/2018] [Accepted: 05/17/2018] [Indexed: 12/13/2022]
Abstract
Myelodysplastic syndromes are a heterogeneous group of clonal hematopoietic disorders. However, the therapies used against the hematopoietic stem cells clones have limited efficacy; they slow the evolution toward acute myeloid leukemia rather than stop clonal evolution and eradicate the disease. The progress made in recent years regarding the role of the bone marrow microenvironment in disease evolution may contribute to progress in this area. This review presents the recent updates on the role of the bone marrow microenvironment in myelodysplastic syndromes pathogenesis and tries to find answers regarding how this information could improve myelodysplastic syndromes diagnosis and therapy.
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Affiliation(s)
- Carmen Mariana Aanei
- Laboratoire d'Hématologie, CHU de Saint-Etienne, 42055 Saint-Etienne Cedex 2, France
| | - Lydia Campos Catafal
- Laboratoire d'Hématologie, CHU de Saint-Etienne, 42055 Saint-Etienne Cedex 2, France
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18
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Donlin LT, Rao DA, Wei K, Slowikowski K, McGeachy MJ, Turner JD, Meednu N, Mizoguchi F, Gutierrez-Arcelus M, Lieb DJ, Keegan J, Muskat K, Hillman J, Rozo C, Ricker E, Eisenhaure TM, Li S, Browne EP, Chicoine A, Sutherby D, Noma A, Nusbaum C, Kelly S, Pernis AB, Ivashkiv LB, Goodman SM, Robinson WH, Utz PJ, Lederer JA, Gravallese EM, Boyce BF, Hacohen N, Pitzalis C, Gregersen PK, Firestein GS, Raychaudhuri S, Moreland LW, Holers VM, Bykerk VP, Filer A, Boyle DL, Brenner MB, Anolik JH. Methods for high-dimensional analysis of cells dissociated from cryopreserved synovial tissue. Arthritis Res Ther 2018; 20:139. [PMID: 29996944 PMCID: PMC6042350 DOI: 10.1186/s13075-018-1631-y] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Accepted: 05/24/2018] [Indexed: 12/29/2022] Open
Abstract
Background Detailed molecular analyses of cells from rheumatoid arthritis (RA) synovium hold promise in identifying cellular phenotypes that drive tissue pathology and joint damage. The Accelerating Medicines Partnership RA/SLE Network aims to deconstruct autoimmune pathology by examining cells within target tissues through multiple high-dimensional assays. Robust standardized protocols need to be developed before cellular phenotypes at a single cell level can be effectively compared across patient samples. Methods Multiple clinical sites collected cryopreserved synovial tissue fragments from arthroplasty and synovial biopsy in a 10% DMSO solution. Mechanical and enzymatic dissociation parameters were optimized for viable cell extraction and surface protein preservation for cell sorting and mass cytometry, as well as for reproducibility in RNA sequencing (RNA-seq). Cryopreserved synovial samples were collectively analyzed at a central processing site by a custom-designed and validated 35-marker mass cytometry panel. In parallel, each sample was flow sorted into fibroblast, T-cell, B-cell, and macrophage suspensions for bulk population RNA-seq and plate-based single-cell CEL-Seq2 RNA-seq. Results Upon dissociation, cryopreserved synovial tissue fragments yielded a high frequency of viable cells, comparable to samples undergoing immediate processing. Optimization of synovial tissue dissociation across six clinical collection sites with ~ 30 arthroplasty and ~ 20 biopsy samples yielded a consensus digestion protocol using 100 μg/ml of Liberase™ TL enzyme preparation. This protocol yielded immune and stromal cell lineages with preserved surface markers and minimized variability across replicate RNA-seq transcriptomes. Mass cytometry analysis of cells from cryopreserved synovium distinguished diverse fibroblast phenotypes, distinct populations of memory B cells and antibody-secreting cells, and multiple CD4+ and CD8+ T-cell activation states. Bulk RNA-seq of sorted cell populations demonstrated robust separation of synovial lymphocytes, fibroblasts, and macrophages. Single-cell RNA-seq produced transcriptomes of over 1000 genes/cell, including transcripts encoding characteristic lineage markers identified. Conclusions We have established a robust protocol to acquire viable cells from cryopreserved synovial tissue with intact transcriptomes and cell surface phenotypes. A centralized pipeline to generate multiple high-dimensional analyses of synovial tissue samples collected across a collaborative network was developed. Integrated analysis of such datasets from large patient cohorts may help define molecular heterogeneity within RA pathology and identify new therapeutic targets and biomarkers. Electronic supplementary material The online version of this article (10.1186/s13075-018-1631-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Laura T Donlin
- Hospital for Special Surgery, New York, NY, 10021, USA.,Weill Cornell Medical College, New York, NY, 10065, USA
| | - Deepak A Rao
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Kevin Wei
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Kamil Slowikowski
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA.,Broad Institute of MIT and Harvard University, Cambridge, MA, 02142, USA
| | - Mandy J McGeachy
- University of Pittsburgh School of Medicine, Pittsburgh, PA, 15261, USA
| | - Jason D Turner
- University of Birmingham, Queen Elizabeth Hospital, B15 2WB, Birmingham, UK
| | - Nida Meednu
- University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Fumitaka Mizoguchi
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Maria Gutierrez-Arcelus
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA.,Broad Institute of MIT and Harvard University, Cambridge, MA, 02142, USA
| | - David J Lieb
- Broad Institute of MIT and Harvard University, Cambridge, MA, 02142, USA
| | - Joshua Keegan
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Kaylin Muskat
- University of California San Diego School of Medicine, La Jolla, CA, 92093, USA
| | - Joshua Hillman
- University of California San Diego School of Medicine, La Jolla, CA, 92093, USA
| | - Cristina Rozo
- Hospital for Special Surgery, New York, NY, 10021, USA
| | - Edd Ricker
- Hospital for Special Surgery, New York, NY, 10021, USA.,Weill Cornell Medical College, New York, NY, 10065, USA
| | | | - Shuqiang Li
- Broad Institute of MIT and Harvard University, Cambridge, MA, 02142, USA
| | - Edward P Browne
- Broad Institute of MIT and Harvard University, Cambridge, MA, 02142, USA
| | - Adam Chicoine
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Danielle Sutherby
- Broad Institute of MIT and Harvard University, Cambridge, MA, 02142, USA
| | - Akiko Noma
- Broad Institute of MIT and Harvard University, Cambridge, MA, 02142, USA
| | | | - Chad Nusbaum
- Broad Institute of MIT and Harvard University, Cambridge, MA, 02142, USA
| | - Stephen Kelly
- Mile End Hospital, Barts Health NHS Trust, E1 1BB, London, UK
| | - Alessandra B Pernis
- Hospital for Special Surgery, New York, NY, 10021, USA.,Weill Cornell Medical College, New York, NY, 10065, USA
| | - Lionel B Ivashkiv
- Hospital for Special Surgery, New York, NY, 10021, USA.,Weill Cornell Medical College, New York, NY, 10065, USA
| | - Susan M Goodman
- Hospital for Special Surgery, New York, NY, 10021, USA.,Weill Cornell Medical College, New York, NY, 10065, USA
| | | | - Paul J Utz
- Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - James A Lederer
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | | | - Brendan F Boyce
- University of Rochester Medical Center, Rochester, NY, 14642, USA
| | - Nir Hacohen
- Broad Institute of MIT and Harvard University, Cambridge, MA, 02142, USA.,Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA
| | | | - Peter K Gregersen
- The Feinstein Institute for Medical Research, Manhasset, NY, 11030, USA
| | - Gary S Firestein
- University of California San Diego School of Medicine, La Jolla, CA, 92093, USA
| | - Soumya Raychaudhuri
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Larry W Moreland
- University of Pittsburgh School of Medicine, Pittsburgh, PA, 15261, USA
| | - V Michael Holers
- University of Colorado of Denver School of Medicine, Aurora, CO, 80045, USA
| | - Vivian P Bykerk
- Hospital for Special Surgery, New York, NY, 10021, USA.,Weill Cornell Medical College, New York, NY, 10065, USA
| | - Andrew Filer
- University of Birmingham, Queen Elizabeth Hospital, B15 2WB, Birmingham, UK
| | - David L Boyle
- University of California San Diego School of Medicine, La Jolla, CA, 92093, USA
| | - Michael B Brenner
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
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19
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Sun AR, Panchal SK, Friis T, Sekar S, Crawford R, Brown L, Xiao Y, Prasadam I. Obesity-associated metabolic syndrome spontaneously induces infiltration of pro-inflammatory macrophage in synovium and promotes osteoarthritis. PLoS One 2017; 12:e0183693. [PMID: 28859108 PMCID: PMC5578643 DOI: 10.1371/journal.pone.0183693] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 08/09/2017] [Indexed: 02/06/2023] Open
Abstract
Objectives Epidemiological and experimental studies have established obesity to be an important risk factor for osteoarthritis (OA), however, the mechanisms underlying this link remains largely unknown. Here, we studied local inflammatory responses in metabolic-OA. Methods Wistar rats were fed with control diet (CD) and high-carbohydrate, high-fat diet (HCHF) for period of 8 and 16 weeks. After euthanasia, the knees were examined to assess the articular cartilage changes and inflammation in synovial membrane. Further IHC was conducted to determine the macrophage-polarization status of the synovium. In addition, CD and HCHF synovial fluid was co-cultured with bone marrow-derived macrophages to assess the effect of synovial fluid inflammation on macrophage polarisation. Results Our study showed that, obesity induced by a high-carbohydrate, high-fat (HCHF) diet is associated with spontaneous and local inflammation of the synovial membranes in rats even before the cartilage degradation. This was followed by increased synovitis and increased macrophage infiltration into the synovium and a predominant elevation of pro-inflammatory M1 macrophages. In addition, bone marrow derived macrophages, cultured with synovial fluid collected from the knees of obese rats exhibited a pro-inflammatory M1 macrophage phenotype. Conclusion Our study demonstrate a strong association between obesity and a dynamic immune response locally within synovial tissues. Furthermore, we have also identified synovial resident macrophages to play a vital role in the inflammation caused by the HCHF diet. Therefore, future therapeutic strategies targeted at the synovial macrophage phenotype may be the key to break the link between obesity and OA.
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Affiliation(s)
- Antonia RuJia Sun
- Institute of Health and Biomedical Innovation, School of Chemistry, Physics, Mechanical Engineering, Queensland University of Technology, Brisbane, Australia
| | - Sunil K. Panchal
- Institute for Agriculture and the Environment and School of Health and Wellbeing, University of Southern Queensland, Toowoomba, Queensland, Australia
| | - Thor Friis
- Institute of Health and Biomedical Innovation, School of Chemistry, Physics, Mechanical Engineering, Queensland University of Technology, Brisbane, Australia
| | - Sunderajhan Sekar
- Institute of Health and Biomedical Innovation, School of Chemistry, Physics, Mechanical Engineering, Queensland University of Technology, Brisbane, Australia
| | - Ross Crawford
- The Prince Charles Hospital, Orthopedic Department, Brisbane, Australia
| | - Lindsay Brown
- Institute for Agriculture and the Environment and School of Health and Wellbeing, University of Southern Queensland, Toowoomba, Queensland, Australia
| | - Yin Xiao
- Institute of Health and Biomedical Innovation, School of Chemistry, Physics, Mechanical Engineering, Queensland University of Technology, Brisbane, Australia
| | - Indira Prasadam
- Institute of Health and Biomedical Innovation, School of Chemistry, Physics, Mechanical Engineering, Queensland University of Technology, Brisbane, Australia
- * E-mail:
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Characterisation of synovial fluid and infrapatellar fat pad derived mesenchymal stromal cells: The influence of tissue source and inflammatory stimulus. Sci Rep 2016; 6:24295. [PMID: 27073003 PMCID: PMC4829842 DOI: 10.1038/srep24295] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Accepted: 03/16/2016] [Indexed: 12/11/2022] Open
Abstract
The infrapatellar fat pad (FP) and synovial fluid (SF) in the knee serve as reservoirs of mesenchymal stromal cells (MSCs) with potential therapeutic benefit. We determined the influence of the donor on the phenotype of donor matched FP and SF derived MSCs and examined their immunogenic and immunomodulatory properties before and after stimulation with the pro-inflammatory cytokine interferon-gamma (IFN-γ). Both cell populations were positive for MSC markers CD73, CD90 and CD105, and displayed multipotency. FP-MSCs had a significantly faster proliferation rate than SF-MSCs. CD14 positivity was seen in both FP-MSCs and SF-MSCs, and was positively correlated to donor age but only for SF-MSCs. Neither cell population was positive for the co-stimulatory markers CD40, CD80 and CD86, but both demonstrated increased levels of human leukocyte antigen-DR (HLA-DR) following IFN-γ stimulation. HLA-DR production was positively correlated with donor age for FP-MSCs but not SF-MSCs. The immunomodulatory molecule, HLA-G, was constitutively produced by both cell populations, unlike indoleamine 2, 3-dioxygenase which was only produced following IFN-γ stimulation. FP and SF are accessible cell sources which could be utilised in the treatment of cartilage injuries, either by transplantation following ex-vivo expansion or endogenous targeting and mobilisation of cells close to the site of injury.
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Manferdini C, Paolella F, Gabusi E, Silvestri Y, Gambari L, Cattini L, Filardo G, Fleury-Cappellesso S, Lisignoli G. From osteoarthritic synovium to synovial-derived cells characterization: synovial macrophages are key effector cells. Arthritis Res Ther 2016; 18:83. [PMID: 27044395 PMCID: PMC4820904 DOI: 10.1186/s13075-016-0983-4] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Accepted: 03/24/2016] [Indexed: 01/15/2023] Open
Abstract
Background The aim of the study was to characterize synovial cells from OA synovium with low-grade and moderate-grade synovitis and to define the role of synovial macrophages in cell culture. Methods Synovial tissue explants were analyzed for the expression of typical markers of synovial fibroblasts (SF), synovial macrophages (SM) and endothelial cells. Synovial cells at passage 1 (p.1) and 5 (p.5) were analyzed for different phenotypical markers by flow cytometric analysis, inflammatory factors by multiplex immunoassay, anabolic and degradative factors by qRT-PCR. P.1 and p.5 synovial cells as different cell models were co-cultured with adipose stem cells (ASC) to define SM effects. Results Synovial tissue showed a higher percentage of CD68 marker in moderate compared with low-grade synovitis. Isolated synovial cells at p.1 were positive to typical markers of SM (CD14, CD16, CD68, CD80 and CD163) and SF (CD55, CD73, CD90, CD105, CD106), whereas p.5 synovial cells were positive only to SF markers and showed a higher percentage of CD55 and CD106. At p.1 synovial cells released a significantly higher amount of all inflammatory (IL6, CXCL8, CCL2, CCL3, CCL5) and some anabolic (IL10) factors than those of p.5. Moreover, p.1 synovial cells also expressed a higher amount of some degradative factors (MMP13, S100A8, S100A9) than p.5 synovial cells. Co-culture experiments showed that the amount of SM in p.1 synovial cells differently induced or down-modulated some of the inflammatory (IL6, CXCL8, CCL2, CCL3, CCL5) and degradative factors (ADAMTS5, MMP13, S100A8, S100A9). Conclusions We found that p.1 (mix of SM and SF) and p.5 (only SF) synovial cells represent two cell models that effectively reproduce the low- or moderate-grade synovitis environment. The presence of SM in culture specifically induces the modulation of the different factors analyzed, confirming that SM are key effector cells. Electronic supplementary material The online version of this article (doi:10.1186/s13075-016-0983-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Cristina Manferdini
- SC Laboratorio di Immunoreumatologia e Rigenerazione Tissutale, Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, Bologna, 40136, Italy.,SD Laboratorio RAMSES, Istituto Ortopedico Rizzoli, Bologna, 40136, Italy
| | - Francesca Paolella
- SC Laboratorio di Immunoreumatologia e Rigenerazione Tissutale, Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, Bologna, 40136, Italy
| | - Elena Gabusi
- SD Laboratorio RAMSES, Istituto Ortopedico Rizzoli, Bologna, 40136, Italy
| | - Ylenia Silvestri
- SC Laboratorio di Immunoreumatologia e Rigenerazione Tissutale, Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, Bologna, 40136, Italy
| | - Laura Gambari
- SC Laboratorio di Immunoreumatologia e Rigenerazione Tissutale, Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, Bologna, 40136, Italy
| | - Luca Cattini
- SC Laboratorio di Immunoreumatologia e Rigenerazione Tissutale, Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, Bologna, 40136, Italy
| | - Giuseppe Filardo
- Clinica Ortopedica e Traumatologica II, Istituto Ortopedico Rizzoli, Bologna, 40136, Italy
| | | | - Gina Lisignoli
- SC Laboratorio di Immunoreumatologia e Rigenerazione Tissutale, Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, Bologna, 40136, Italy. .,SD Laboratorio RAMSES, Istituto Ortopedico Rizzoli, Bologna, 40136, Italy.
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Guo H, Fang W, Chen G, Xu J, Li C, Feng Y, Li Y, Long X. Upregulation of proangiogenic factors expression in the synovium of temporomandibular joint condylar hyperplasia. Oral Surg Oral Med Oral Pathol Oral Radiol 2016; 121:e65-71. [DOI: 10.1016/j.oooo.2015.11.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Revised: 11/04/2015] [Accepted: 11/08/2015] [Indexed: 12/30/2022]
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Del Rey MJ, Faré R, Usategui A, Cañete JD, Bravo B, Galindo M, Criado G, Pablos JL. CD271(+) stromal cells expand in arthritic synovium and exhibit a proinflammatory phenotype. Arthritis Res Ther 2016; 18:66. [PMID: 26980374 PMCID: PMC4791981 DOI: 10.1186/s13075-016-0966-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 02/29/2016] [Indexed: 12/27/2022] Open
Abstract
Background CD271+ stromal cells (SCs) with multipotent stem cell capacity have been identified in synovial tissues, but their functional significance is unknown. We analyzed the distribution of CD271+ cells in inflammatory synovial tissues as well as their ex vivo immunomodulatory and inflammatory phenotypes. Methods CD271 expression was analyzed by immunohistochemistry in synovial tissues and by flow cytometry in primary adherent synovial cell cultures from rheumatoid arthritis (RA), osteoarthritis (OA), and non-inflammatory control tissues. Isolation of CD271+ synovial SCs was carried out by magnetic cell sorting. Allogeneic T-cell/SC cocultures were performed to analyze the regulatory capacity of these cells on T-cell proliferation and cytokine production. The production of inflammatory mediators was analyzed in cultures of sorted CD271+/− SCs. The capacity of CD271+/− SCs to induce inflammatory cell recruitment in vivo was evaluated in subcutaneous implants in immunodeficient mice. Results CD271+ SC were detected in non-inflammatory as well as in arthritic synovial tissues with a specific perivascular distribution. CD271+ SC density was increased in RA and OA compared with normal synovial tissues. T-cell proliferation and cytokine synthesis were similarly modified by CD271+ and CD271− SCs. Sorted CD271+ SCs from OA synovial tissues released significantly more interleukin (IL)-6, matrix metalloproteinase (MMP)-1, and MMP-3 than CD271− SCs. In immunodeficient mice, implants of CD271+ SCs induced significantly higher myeloid cell infiltration than CD271− SCs. Conclusions Our results demonstrate that CD271+ perivascular SCs expand in RA and OA synovial tissues. CD271+ cells showed enhanced proinflammatory properties ex vivo and in vivo, whereas immunoregulatory properties were equivalent in CD271+ and CD271− SC. Electronic supplementary material The online version of this article (doi:10.1186/s13075-016-0966-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Manuel J Del Rey
- Servicio de Reumatología, Instituto de Investigación Hospital 12 de Octubre (i+12), 28041, Madrid, Spain
| | - Regina Faré
- Servicio de Reumatología, Instituto de Investigación Hospital 12 de Octubre (i+12), 28041, Madrid, Spain
| | - Alicia Usategui
- Servicio de Reumatología, Instituto de Investigación Hospital 12 de Octubre (i+12), 28041, Madrid, Spain
| | - Juan D Cañete
- Unitat d'Artritis, Servei de Reumatologia, Hospital Clínic de Barcelona, Barcelona, Spain.,Institut d'Investigacions Biomèdiques August Pí i Sunyer, Barcelona, Spain
| | - Beatriz Bravo
- Servicio de Cirugía Ortopédica y Traumatología, Hospital 12 de Octubre, Madrid, Spain
| | - María Galindo
- Servicio de Reumatología, Instituto de Investigación Hospital 12 de Octubre (i+12), 28041, Madrid, Spain
| | - Gabriel Criado
- Servicio de Reumatología, Instituto de Investigación Hospital 12 de Octubre (i+12), 28041, Madrid, Spain
| | - José L Pablos
- Servicio de Reumatología, Instituto de Investigación Hospital 12 de Octubre (i+12), 28041, Madrid, Spain.
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Lv FJ, Tuan RS, Cheung KMC, Leung VYL. Concise review: the surface markers and identity of human mesenchymal stem cells. Stem Cells 2015; 32:1408-19. [PMID: 24578244 DOI: 10.1002/stem.1681] [Citation(s) in RCA: 707] [Impact Index Per Article: 78.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Accepted: 02/09/2014] [Indexed: 12/13/2022]
Abstract
The concept of mesenchymal stem cells (MSCs) is becoming increasingly obscure due to the recent findings of heterogeneous populations with different levels of stemness within MSCs isolated by traditional plastic adherence. MSCs were originally identified in bone marrow and later detected in many other tissues. Currently, no cloning based on single surface marker is capable of isolating cells that satisfy the minimal criteria of MSCs from various tissue environments. Markers that associate with the stemness of MSCs await to be elucidated. A number of candidate MSC surface markers or markers possibly related to their stemness have been brought forward so far, including Stro-1, SSEA-4, CD271, and CD146, yet there is a large difference in their expression in various sources of MSCs. The exact identity of MSCs in vivo is not yet clear, although reports have suggested they may have a fibroblastic or pericytic origin. In this review, we revisit the reported expression of surface molecules in MSCs from various sources, aiming to assess their potential as MSC markers and define the critical panel for future investigation. We also discuss the relationship of MSCs to fibroblasts and pericytes in an attempt to shed light on their identity in vivo.
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Affiliation(s)
- Feng-Juan Lv
- Department of Orthopaedics and Traumatology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, People's Republic of China; Stem Cell & Regenerative Medicine Consortium, The University of Hong Kong, Hong Kong SAR, People's Republic of China; Center for Reproduction, Development and Growth, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, People's Republic of China
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Pereira LE, Makarova N, Dobard C, Aubert RD, Srinivasan P, McNicholl J, Smith JM. Development and optimization of a non-enzymatic method of leukocyte isolation from macaque tissues. J Med Primatol 2014; 43:360-3. [PMID: 25379593 DOI: 10.1111/jmp.12121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND AND METHODS Cell isolation from macaque tissues involves laborious enzymatic digestion. The Medimachine provides a simpler, quicker non-enzymatic method, yielding 1.5–5 million cells/g of vaginal or rectal tissue from pigtailed macaques. RESULTS AND CONCLUSIONS Flow cytometry analysis of the two methods revealed similar levels of cell viability and most major cell lineage and activation markers.
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Fahy N, de Vries-van Melle ML, Lehmann J, Wei W, Grotenhuis N, Farrell E, van der Kraan PM, Murphy JM, Bastiaansen-Jenniskens YM, van Osch GJVM. Human osteoarthritic synovium impacts chondrogenic differentiation of mesenchymal stem cells via macrophage polarisation state. Osteoarthritis Cartilage 2014; 22:1167-75. [PMID: 24911520 DOI: 10.1016/j.joca.2014.05.021] [Citation(s) in RCA: 174] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Revised: 05/21/2014] [Accepted: 05/28/2014] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Mesenchymal stem cells (MSCs) are a promising cell type for the repair of damaged cartilage in osteoarthritis (OA). However, OA synovial fluid and factors secreted by synovium impede chondrogenic differentiation of MSCs, and the mechanism responsible for this effect remains unclear. In this study, we sought to investigate whether M1 and M2 synovial macrophages can contribute to the inhibition of MSC chondrogenesis. DESIGN The constitution of synovial macrophage subsets was analysed by immunohistochemical staining of human OA synovium sections for CD86 (M1 marker) and CD206 (M2 marker). To assess the effect of synovial macrophages on chondrogenesis, collagen type II (COL2) and aggrecan (ACAN) gene expression were compared between MSCs undergoing chondrogenic differentiation in medium conditioned (CM) by human OA synovial explants, human synovial macrophages and fibroblasts, or peripheral blood derived primary human monocytes differentiated towards an M1 or M2 phenotype. RESULTS OA synovium contained both M1 and M2 macrophages. Medium conditioned by synovial macrophages (CD45 + plastic adherent cells) down-regulated chondrogenic gene expression by MSCs. Additionally, CM of M1 polarised monocytes significantly decreased COL2 and ACAN gene expression by MSCs; this effect was not observed for treatment with CM of M2 polarised monocytes. CONCLUSION MSC chondrogenesis is inhibited by OA synovium CM through factors secreted by synovial macrophages and our findings suggest that M1 polarised subsets are potential mediators of this anti-chondrogenic effect. Modulation of macrophage phenotype may serve as a beneficial strategy to maximise the potential of MSCs for efficient cartilage repair.
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Affiliation(s)
- N Fahy
- Regenerative Medicine Institute, National University of Ireland Galway, Ireland; Department of Orthopaedics, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.
| | - M L de Vries-van Melle
- Department of Orthopaedics, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.
| | - J Lehmann
- Department of Orthopaedics, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.
| | - W Wei
- Department of Orthopaedics, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.
| | - N Grotenhuis
- Department of Surgery, Erasmus MC, University Medical Center, Rotterdam, The Netherlands; Department of Otorhinolarynogology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.
| | - E Farrell
- Regenerative Medicine Institute, National University of Ireland Galway, Ireland; Department of Oral and Maxillofacial Surgery, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.
| | - P M van der Kraan
- Department of Rheumatology, Radboud University Medical Centre, Nijmegen, The Netherlands.
| | - J M Murphy
- Regenerative Medicine Institute, National University of Ireland Galway, Ireland.
| | | | - G J V M van Osch
- Department of Orthopaedics, Erasmus MC, University Medical Center, Rotterdam, The Netherlands; Department of Otorhinolarynogology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.
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Abstract
The vast majority of literature pertaining to mesenchymal stem cells (MSC) immunomodulation has focussed on bone marrow-derived MSC that are systemically infused to alleviate inflammatory conditions. Rheumatoid arthritis (RA) is the commonest autoimmune joint disease that has witnessed significant therapeutic advances in the past decade, but remains stubbornly difficult to treat in a subset of cases. Pre-clinical research has demonstrated that bone marrow, adipose, synovial and umbilical cord-derived MSC all suppress the functions of different immune cells thus raising the possibility of new therapies for autoimmune diseases including RA. Indeed, preliminary evidence for MSC efficacy has been reported in some cases of RA and systemic lupus erythromatosis. The potential use of bone marrow-MSC (BM-MSC) for RA therapy is emerging but the use of synovial MSC (S-MSC) to suppress the exaggerated immune response within the inflamed joints remains rudimentary. Synovial fibroblasts that are likely derived from S-MSCs, also give rise to a cell-cultured progeny termed fibroblast-like synoviocytes (FLS), which are key players in the perpetuation of joint inflammation and destruction. A better understanding of the link between these cells and their biology could be a key to developing novel MSC-based strategies for therapy. The review briefly focuses on BM-MSC and gives particular attention to joint niche synovial MSC and FLS with respect to immunoregulatory potential therapy roles.
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Affiliation(s)
- J J El-Jawhari
- From the Leeds Institute of Rheumatic and Musculoskeletal Medicine, St. James University Hospital , WTBB, LS9 7TF University of Leeds, UK and Clinical Pathology Department, Faculty of Medicine, Mansoura University, Mansoura, EgyptFrom the Leeds Institute of Rheumatic and Musculoskeletal Medicine, St. James University Hospital , WTBB, LS9 7TF University of Leeds, UK and Clinical Pathology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - Y M El-Sherbiny
- From the Leeds Institute of Rheumatic and Musculoskeletal Medicine, St. James University Hospital , WTBB, LS9 7TF University of Leeds, UK and Clinical Pathology Department, Faculty of Medicine, Mansoura University, Mansoura, EgyptFrom the Leeds Institute of Rheumatic and Musculoskeletal Medicine, St. James University Hospital , WTBB, LS9 7TF University of Leeds, UK and Clinical Pathology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - E A Jones
- From the Leeds Institute of Rheumatic and Musculoskeletal Medicine, St. James University Hospital , WTBB, LS9 7TF University of Leeds, UK and Clinical Pathology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
| | - D McGonagle
- From the Leeds Institute of Rheumatic and Musculoskeletal Medicine, St. James University Hospital , WTBB, LS9 7TF University of Leeds, UK and Clinical Pathology Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
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Mrosewski I, Jork N, Gorte K, Conrad C, Wiegand E, Kohl B, Ertel W, John T, Oberholzer A, Kaps C, Schulze-Tanzil G. Regulation of osteoarthritis-associated key mediators by TNFα and IL-10: effects of IL-10 overexpression in human synovial fibroblasts and a synovial cell line. Cell Tissue Res 2014; 357:207-23. [PMID: 24816983 DOI: 10.1007/s00441-014-1868-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Accepted: 03/06/2014] [Indexed: 11/28/2022]
Abstract
Synovial fibroblasts (SF) contribute to the pathogenesis of osteoarthritis (OA), but the effects of intra-articular cytokines on SF are not completely understood. The aim of this study was to characterize the interplay between tumor necrosis factor (TNF)α and the anti-inflammatory interleukin (IL)-10. Non-immortalized human SF and SF of the human cell line K4IM were stimulated with recombinant TNFα, IL-10, or TNFα + IL-10 (10 ng/ml each) for 24 h or transduced with an adenoviral vector overexpressing human IL-10 (hIL-10) and subsequently treated with 10 ng/ml TNFα for 24 h. Effects on the gene expression and protein synthesis of IL-6, IL-10, matrix metalloproteinases (MMP)-1, -3, type I collagen, β1-integrin, and CD44 were investigated via real-time detection polymerase chain reaction, immunofluorescence labeling, flow cytometry, and Western blotting. IL-10 release by transduced SF was confirmed with enzyme-linked immunosorbent assay. Both cell populations were activated by TNFα and by TNFα + IL-10, increasing their gene expression and protein synthesis of IL-6, IL-10, MMP-1, and MMP-3 and altering the synthesis of type I collagen, β1-integrin, and CD44. hIL-10 overexpression greatly elevated the gene expression and protein synthesis of IL-10. However, transduction did not significantly affect the gene expression of IL-6, MMP-1, and MMP-3 in SF. The increased expression of pro-inflammatory and catabolic mediators in TNFα-activated SF indicates their role in OA pathogenesis, suggesting they are a potential therapeutic target. Although the vigorousness of the responses of non-immortalized SF and K4IM clearly differ, the K4IM cell line seems to be a suitable model for non-immortalized human SF.
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Affiliation(s)
- I Mrosewski
- Department for Orthopaedic, Trauma and Reconstructive Surgery, Charité-University of Medicine, Campus Benjamin Franklin, FEM Garystrasse 5, 14195, Berlin, Germany
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Microporous calcium phosphate ceramics as tissue engineering scaffolds for the repair of osteochondral defects: Histological results. Acta Biomater 2013; 9:7490-505. [PMID: 23528497 DOI: 10.1016/j.actbio.2013.03.021] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Revised: 03/05/2013] [Accepted: 03/12/2013] [Indexed: 02/04/2023]
Abstract
Treatment of defects in joint cartilage aims to re-establish normal joint function. In vitro experiments have shown that the application of synthetic scaffolds is a promising alternative to existing therapeutic options. A sheep study was conducted to test the suitability of microporous pure β-tricalcium phosphate (TCP) ceramics as tissue engineering scaffolds for the repair of osteochondral defects. Cylindrical plugs of microporous β-TCP (diameter: 7mm; length: 25mm; porosity: 43.5±2.4%; pore diameter: ~5μm) with interconnecting pores were used. Scaffolds were seeded with autologous chondrocytes in vitro and cultured for 4weeks. A drill hole (diameter 7mm) was placed in both medial femoral condyles of sheep. For the left knee the defect was filled with a TCP plug and for the right knee the defect was left empty. After 6, 12, 26 and 52weeks, seven animals from each group were killed and studied. The samples were examined employing histological, histomorphometric and immunohistological methods as well as various imaging techniques (X-ray, microcomputer tomography and scanning electron microscopy). After explantation the cartilage defects were first assessed macroscopically. There were no signs of infection or inflammation. Histological grading scales were used for assessment of bony integration and cartilage repair. An increasing degradation (81% after 52weeks) of the ceramic with concomitant bone formation was observed. The original structure of cancellous bone was almost completely restored. After 26 and 52weeks, collagen II-positive hyaline cartilage was detected in several samples. New subchondral bone had formed. The formation of cartilage began at the outer edge and proceeded to the middle. According to the O'Driscoll score, values corresponding to healthy cartilage were not reached after 1year. Integration of the newly formed cartilage tissue into the surrounding native cartilage was found. The formation of biomechanical stable cartilage began at the edge and progressed towards the centre of the defect. After 1year this process was still not completed. Microporous β-TCP scaffolds seeded with chondrocytes are suitable for the treatment of osteochondral defects.
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Gullo F, De Bari C. Prospective purification of a subpopulation of human synovial mesenchymal stem cells with enhanced chondro-osteogenic potency. Rheumatology (Oxford) 2013; 52:1758-68. [PMID: 23804221 DOI: 10.1093/rheumatology/ket205] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
OBJECTIVE We previously reported the coexistence, within cultured mesenchymal stem cells (MSCs) from human synovial membrane, of single-cell-derived clonal cell populations with distinct differentiation potency. The aim of this study was to investigate marker sets for prospective purification of functionally distinct MSC subsets. METHODS Cells were enzymatically released from human synovium and culture expanded. Phenotype analysis was performed by flow cytometry using combinations of MSC markers. Sorting was carried out using the FACS DiVA cell sorter. Sorted cell populations were assessed for clonogenicity, kinetics of growth, cell senescence and chondro-osteogenic potency. RESULTS During culture expansion, the co-localization of CD39 within the CD73(+) cell population identified a small cell subset that was maintained from passage 1 (P1) up to at least P12 in all donors tested. The CD73(+)CD39(+) cell subset displayed higher expression levels of Sox9 and Runx2 and a significantly greater chondro-osteogenic potency than the CD73(+)CD39(-) cell subset. In contrast, it was less clonogenic and proliferative. There was no difference in cell senescence between the sorted MSC subsets and the parental MSCs. Notably, there were no detectable differences in chondro-osteogenic potency between the CD73(+)CD39(-) and CD73(+)CD39(+) cell subsets purified from fresh synovial cell populations. CONCLUSION Our findings indicate that the combination of CD73 and CD39 allows the prospective purification from culture-expanded heterogeneous synovial MSC populations of a distinct MSC subset with greater chondro-osteogenic potency. We anticipate that such an approach will enhance the consistency of cell-based therapeutic protocols for the repair of osteochondral defects.
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Affiliation(s)
- Francesca Gullo
- Institute of Medical Sciences, Foresterhill, Aberdeen AB25 2ZD, UK.
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31
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Average cell viability levels of human dental pulp stem cells: an accurate combinatorial index for quality control in tissue engineering. Cytotherapy 2013; 15:507-18. [DOI: 10.1016/j.jcyt.2012.11.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2012] [Revised: 11/28/2012] [Accepted: 11/30/2012] [Indexed: 01/09/2023]
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Ma A, Jiang L, Song L, Hu Y, Dun H, Daloze P, Yu Y, Jiang J, Zafarullah M, Chen H. Reconstruction of cartilage with clonal mesenchymal stem cell-acellular dermal matrix in cartilage defect model in nonhuman primates. Int Immunopharmacol 2013; 16:399-408. [PMID: 23499511 DOI: 10.1016/j.intimp.2013.02.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2013] [Accepted: 02/01/2013] [Indexed: 12/29/2022]
Abstract
OBJECTIVE Articular cartilage defects are commonly associated with trauma, inflammation and osteoarthritis. Mesenchymal stem cell (MSC)-based therapy is a promising novel approach for repairing articular cartilage. Direct intra-articular injection of uncommitted MSCs does not regenerate high-quality cartilage. This study explored utilization of a new three-dimensional, selected chondrogenic clonal MSC-loaded monkey acellular dermal matrix (MSC-ADM) scaffold to repair damaged cartilage in an experimental model of knee joint cartilage defect in Cynomolgus monkeys. METHODS MSCs were characterized for cell size, cell yield, phenotypes, proliferation and chondrogenic differentiation capacity. Chondrogenic differentiation assays were performed at different MSC passages by sulfated glycosaminoglycans (sGAG), collagen, and fluorescence activated cell sorter (FACS) analysis. Selected chondrogenic clonal MSCs were seeded onto ADM scaffold with the sandwich model and MSC-loaded ADM grafts were analyzed by confocal microscopy and scanning electron microscopy. Cartilage defects were treated with normal saline, clonal MSCs and clonal MSC-ADM grafts, respectively. The clinical parameters, and histological and immunohistochemical examinations were evaluated at weeks 8, 16, 24 post-treatment, respectively. RESULTS Polyclonal and clonal MSCs could differentiate into the chondrogenic lineage after stimulation with suitable chondrogenic factors. They expressed mesenchymal markers and were negative for hematopoietic markers. Articular cartilage defects were considerably improved and repaired by selected chondrogenic clonal MSC-based treatment, particularly, in MSC-ADM-treated group. The histological scores in MSC-ADM-treated group were consistently higher than those of other groups. CONCLUSION Our results suggest that selected chondrogenic clonal MSC-loaded ADM grafts could improve the cartilage lesions in Cynomolgus monkey model, which may be applicable for repairing similar human cartilage defects.
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Affiliation(s)
- Anlun Ma
- Department of Surgery, Research Center, CHUM (CRCHUM), Notre-Dame Hospital, University of Montreal, Montreal, Canada
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Jiang L, Ma A, Song L, Hu Y, Dun H, Daloze P, Yu Y, Jiang J, Zafarullah M, Chen H. Cartilage regeneration by selected chondrogenic clonal mesenchymal stem cells in the collagenase-induced monkey osteoarthritis model. J Tissue Eng Regen Med 2013; 8:896-905. [PMID: 23335439 DOI: 10.1002/term.1676] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2012] [Revised: 09/11/2012] [Accepted: 11/05/2012] [Indexed: 12/29/2022]
Abstract
Osteoarthritis (OA) is the most common form of arthritis, in which cartilage is irreversibly degraded, causing severe pain and disability. Current therapeutic strategies cannot repair damaged cartilage. We evaluated the repair potential of selected chondrogenic clonal MSCs (sC-MSCs) by delivering them into the injured cartilage site in a collagenase-induced OA model in Cynomolgus monkeys. In vitro characterization showed that the isolated monkey sC-MSCs and polyclonal MSCs (P-MSCs) expressed mesenchymal stem cell markers and could differentiate into chondrocytes. The articular cartilage lesions in animals were treated with normal saline (NS), autologous P-MSCs and sC-MSCs, respectively, by direct delivery. The clinical parameters, radiographic images, histological and immunohistochemical examinations at weeks 8, 16 and 24 post-treatment demonstrated that the abrasions of articular cartilage were significantly improved and repaired by MSC-based treatment, particularly in the sC-MSC-treated group, which displayed consistently higher histological scores than those of other groups. In summary, treatment with sC-MSCs can effectively improve the healing of cartilage lesions in the Cynomolgus monkey collagenase-induced OA model. Due to the genetic proximity of monkey and human, the therapeutic strategy presented in this study will have broad applications in clinical practice.
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Affiliation(s)
- Li Jiang
- Department of Surgery, CRCHUM, Notre Dame Hospital, University of Montreal, Quebec, Canada; Department of Orthopaedics, Huashan Hospital, Fudan University, Shanghai, People's Republic of China
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A synoviocyte model for osteoarthritis and rheumatoid arthritis: response to Ibuprofen, betamethasone, and ginger extract-a cross-sectional in vitro study. ARTHRITIS 2012; 2012:505842. [PMID: 23365744 PMCID: PMC3546442 DOI: 10.1155/2012/505842] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2012] [Revised: 11/26/2012] [Accepted: 12/11/2012] [Indexed: 12/26/2022]
Abstract
This study aimed at determining if synovial cell cultures from rheumatoid arthritis (RA), osteoarthritis (OA), and healthy controls (HC) differ and are suitable disease models in pharmacological studies, and tested their response to some anti-inflammatory drugs. Synovial cells were isolated from synovial membrane or joint fluid. Cells were cultivated and exposed to no or TNF-α stimulation without, or in the presence of, betamethasone, ibuprofen, or a standardized ginger extract. Concentrations of a panel of cytokines, growth factors, and chemokines were mapped for each culture and condition. Our cells secreted an increased amount of the cytokines IL-1β, IL-6, and IL-8 in response to TNF-α stimulation in all conditions. OA cells showed a higher IL-6 and IL-8 and a lower IL-1β production, when not stimulated, than RA and HC cells, which were similar. TNF-α stimulation caused similar IL-1β, IL-6, and IL-8 release in all groups. Ibuprofen showed no effect on cytokine production, while ginger extract was similar to betamethasone. Ginger extract was as effective an anti-inflammatory agent as betamethasone in this in vitro model. Cultured fibroblast-like synoviocytes from OA and RA subjects promise to be a useful pharmacological disease model, but further studies, to support results from such a model are needed.
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Yeremenko N, Noordenbos T, Cantaert T, van Tok M, van de Sande M, Cañete JD, Tak PP, Baeten D. Disease-specific and inflammation-independent stromal alterations in spondylarthritis synovitis. ACTA ACUST UNITED AC 2012; 65:174-85. [PMID: 22972410 DOI: 10.1002/art.37704] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2012] [Accepted: 09/06/2012] [Indexed: 12/19/2022]
Affiliation(s)
- Nataliya Yeremenko
- Department of Clinical Immunology and Rheumatology, Academic Medical Center and University of Amsterdam, Amsterdam, The Netherlands
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Jones E, McGonagle D. Synovial mesenchymal stem cells in vivo: Potential key players for joint regeneration. World J Rheumatol 2011; 1:4-11. [DOI: 10.5499/wjr.v1.i1.4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Unlike bone marrow (BM) mesenchymal stem cells (MSCs), whose in vivo identity has been actively explored in recent years, the biology of MSCs in the synovium remains poorly understood. Synovial MSCs may be of great importance to rheumatology and orthopedics because of the direct proximity and accessibility of the synovium to cartilage, ligament, and meniscus. Their excellent chondrogenic capabilities and suggested transit through the synovial fluid, giving unhindered access to the joint surface, further support a pivotal role for synovial MSCs in homeostatic joint repair. This review highlights several unresolved issues pertaining to synovial MSC isolation, topography, and their relationship with pericytes, synovial fibroblasts, and synovial fluid MSCs. Critically reviewing published data on synovial MSCs, we also draw from our experience of exploring the in vivo biology of MSCs in the BM to highlight key differences. Extending our knowledge of synovial MSCs in vivo could lead to novel therapeutic strategies for arthritic diseases.
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Phenotypic characterization and functional analysis of human tumor immune infiltration after mechanical and enzymatic disaggregation. J Immunol Methods 2011; 372:119-26. [PMID: 21782822 DOI: 10.1016/j.jim.2011.07.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2011] [Revised: 07/04/2011] [Accepted: 07/05/2011] [Indexed: 12/31/2022]
Abstract
Multi-parametric flow cytometry analysis is a reliable method for phenotypic and functional characterization of tumor infiltrating immune cells (TIIC). The isolation of infiltrating leukocytes from solid tumors can be achieved through various methods which can be both enzymatic and mechanical; however, these methods may alter cell biology. The aim of this study was to compare the effects of three tissue disaggregation techniques on TIIC biology in breast, kidney and lung tumor specimens. We therefore compared two enzymatic treatments using either collagenase type IA alone or in combination with collagenase type IV and DNase I type II, and one mechanical system (Medimachine™). We evaluated the impact of treatments on cell viability, surface marker integrity and proliferative capacity. We show that cell viability was not significantly altered by treatments. However, enzymatic treatments decreased cell proliferation; specifically collagenases and DNase provoked a significant decrease in detection of surface markers such as CD4, CD8, CD45RA and CD14, indicating that results of phenotypic studies employing these techniques could be affected. In conclusion, mechanical tissue disaggregation by Medimachine™ appears to be optimal to maintain phenotypic and functional TIIC features.
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Regeneration of cartilage and bone by defined subsets of mesenchymal stromal cells--potential and pitfalls. Adv Drug Deliv Rev 2011; 63:342-51. [PMID: 21184789 DOI: 10.1016/j.addr.2010.12.004] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2010] [Revised: 12/08/2010] [Accepted: 12/10/2010] [Indexed: 01/09/2023]
Abstract
Mesenchymal stromal cells, also referred to as mesenchymal stem cells, can be obtained from various tissues. Today the main source for isolation of mesenchymal stromal cells in mammals is the bone marrow. Mesenchymal stromal cells play an important role in tissue formation and organogenesis during embryonic development. Moreover, they provide the cellular and humoral basis for many processes of tissue regeneration and wound healing in infancy, adolescence and adulthood as well. There is increasing evidence that mesenchymal stromal cells from bone marrow and other sources including term placenta or adipose tissue are not a homogenous cell population. Only a restricted number of appropriate stem cells markers have been explored so far. But routine preparations of mesenchymal stromal cells contain phenotypically and functionally distinct subsets of stromal cells. Knowledge on the phenotypical characteristics and the functional consequences of such subsets will not only extend our understanding of stem cell biology, but might allow to develop improved regimen for regenerative medicine and wound healing and novel protocols for tissue engineering as well. In this review we will discuss novel strategies for regenerative medicine by specific selection or separation of subsets of mesenchymal stromal cells in the context of osteogenesis and bone regeneration. Mesenchymal stromal cells, which express the specific cell adhesion molecule CD146, also known as MCAM or MUC18, are prone for bone repair. Other cell surface proteins may allow the selection of chondrogenic, myogenic, adipogenic or other pre-determined subsets of mesenchymal stromal cells for improved regenerative applications as well.
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Qi J, Chen A, You H, Li K, Zhang D, Guo F. Proliferation and chondrogenic differentiation of CD105-positive enriched rat synovium-derived mesenchymal stem cells in three-dimensional porous scaffolds. Biomed Mater 2011; 6:015006. [PMID: 21205995 DOI: 10.1088/1748-6041/6/1/015006] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Stem cell-based tissue engineering has provided an alternative strategy to treat cartilage lesions, and synovium-derived mesenchymal stem cells (SMSCs) are considered as a promising cell source for cartilage repair. In this study, the SMSCs were isolated from rat synovium, and CD105-positive (CD105(+)) cells were enriched using magnetic activated cell sorting. Sorted cells were subsequently seeded onto the chitosan-alginate composite three-dimensional (3D) porous scaffolds and cultured in chondrogenic culture medium in the presence of TGF-β₃ and BMP-2 for 2 weeks in vitro. After 2 weeks in culture, scanning electron microscopy results showed that cells attached and proliferated well on scaffolds, and secreted extracellular matrix were also observed. From day 7 to day 14, the total DNA and glucosaminoglycan content of the cells cultured in scaffolds were found to have increased significantly, and cell cycle analyses revealed that the percentage of cells in the S and G2/M phases increased and the percentage of cells in the G0/G1 phase decreased. Compared with non-sorted cells, the sorted cells cultured in scaffolds underwent more chondrogenic differentiation, as evidenced by higher expression of type II collagen and Sox9 at the protein and mRNA levels. The results suggest that CD105(+) enriched SMSCs may be a potential cell source for cartilage tissue engineering, and the chitosan-alginate composite 3D porous scaffold could provide a favorable microenvironment for supporting proliferation and chondrogenic differentiation of cells.
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Affiliation(s)
- Jun Qi
- Department of Orthopedics, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, People's Republic of China
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Boeuf S, Richter W. Chondrogenesis of mesenchymal stem cells: role of tissue source and inducing factors. Stem Cell Res Ther 2010; 1:31. [PMID: 20959030 PMCID: PMC2983444 DOI: 10.1186/scrt31] [Citation(s) in RCA: 109] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Multipotent mesenchymal stromal cells (MSCs) are an attractive cell source for cell therapy in cartilage. Although their therapeutic potential is clear, the requirements and conditions for effective induction of chondrogenesis in MSCs and for the production of a stable cartilaginous tissue by these cells are far from being understood. Different sources of MSCs have been considered for cartilage tissue engineering, mainly based on criteria of availability, as for adipose tissue, or of proximity to cartilage and the joint environment in vivo, as for bone marrow and synovial tissues. Focussing on human MSCs, this review will provide an overview of studies featuring comparative analysis of the chondrogenic differentiation of MSCs from different sources. In particular, it will examine the influence of the cells' origin on the requirements for the induction of chondrogenesis and on the phenotype achieved by the cells after differentiation.
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Affiliation(s)
- Stephane Boeuf
- Research Centre for Experimental Orthopaedics, Orthopaedic University Hospital Heidelberg, Schlierbacher Landstrasse 200a, 69118 Heidelberg, Germany.
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