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Anderson JR, Johnson E, Jenkins R, Jacobsen S, Green D, Walters M, Bundgaard L, Hausmans BAC, van den Akker G, Welting TJM, Chabronova A, Kharaz YA, Clarke EJ, James V, Peffers MJ. Multi-Omic Temporal Landscape of Plasma and Synovial Fluid-Derived Extracellular Vesicles Using an Experimental Model of Equine Osteoarthritis. Int J Mol Sci 2023; 24:14888. [PMID: 37834337 PMCID: PMC10573509 DOI: 10.3390/ijms241914888] [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: 08/03/2023] [Revised: 09/26/2023] [Accepted: 09/28/2023] [Indexed: 10/15/2023] Open
Abstract
Extracellular vesicles (EVs) contribute to osteoarthritis pathogenesis through their release into joint tissues and synovial fluid. Synovial fluid-derived EVs have the potential to be direct biomarkers in the causal pathway of disease but also enable understanding of their role in disease progression. Utilizing a temporal model of osteoarthritis, we defined the changes in matched synovial fluid and plasma-derived EV small non-coding RNA and protein cargo using sequencing and mass spectrometry. Data exploration included time series clustering, factor analysis and gene enrichment interrogation. Chondrocyte signalling was analysed using luciferase-based transcription factor activity assays. EV protein cargo appears to be more important during osteoarthritis progression than small non-coding RNAs. Cluster analysis revealed plasma-EVs represented a time-dependent response to osteoarthritis induction associated with supramolecular complexes. Clusters for synovial fluid-derived EVs were associated with initial osteoarthritis response and represented immune/inflammatory pathways. Factor analysis for plasma-derived EVs correlated with day post-induction and were primarily composed of proteins modulating lipid metabolism. Synovial fluid-derived EVs factors represented intermediate filament and supramolecular complexes reflecting tissue repair. There was a significant interaction between time and osteoarthritis for CRE, NFkB, SRE, SRF with a trend for osteoarthritis synovial fluid-derived EVs at later time points to have a more pronounced effect.
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Affiliation(s)
- James R. Anderson
- Department of Musculoskeletal and Ageing Science, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool L7 8TX, UK (Y.A.K.)
| | - Emily Johnson
- Computational Biology Facility, Liverpool Shared Research Facilities, Faculty of Health and Life Sciences, University of Liverpool, Liverpool L7 8TX, UK
| | - Rosalind Jenkins
- CDSS Bioanalytical Facility, Liverpool Shared Research Facilities, Department Pharmacology and Therapeutics, University of Liverpool, Liverpool L7 8TX, UK
| | - Stine Jacobsen
- Department of Veterinary Clinical Sciences, University of Copenhagen, Taastrup, DK-1870 Copenhagen, Denmark
| | - Daniel Green
- Department of Musculoskeletal and Ageing Science, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool L7 8TX, UK (Y.A.K.)
| | - Marie Walters
- Department of Veterinary Clinical Sciences, University of Copenhagen, Taastrup, DK-1870 Copenhagen, Denmark
| | - Louise Bundgaard
- Department of Veterinary Clinical Sciences, University of Copenhagen, Taastrup, DK-1870 Copenhagen, Denmark
| | - Bas A. C. Hausmans
- Laboratory for Experimental Orthopedics, Department of Orthopedic Surgery, Maastricht University, 6229 Maastricht, The Netherlands; (B.A.C.H.)
| | - Guus van den Akker
- Laboratory for Experimental Orthopedics, Department of Orthopedic Surgery, Maastricht University, 6229 Maastricht, The Netherlands; (B.A.C.H.)
| | - Tim J. M. Welting
- Laboratory for Experimental Orthopedics, Department of Orthopedic Surgery, Maastricht University, 6229 Maastricht, The Netherlands; (B.A.C.H.)
| | - Alzbeta Chabronova
- Department of Musculoskeletal and Ageing Science, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool L7 8TX, UK (Y.A.K.)
| | - Yalda A. Kharaz
- Department of Musculoskeletal and Ageing Science, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool L7 8TX, UK (Y.A.K.)
| | - Emily J. Clarke
- Department of Musculoskeletal and Ageing Science, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool L7 8TX, UK (Y.A.K.)
| | - Victoria James
- School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington, Loughborough, Nottingham LE12 5RD, UK
| | - Mandy J. Peffers
- Department of Musculoskeletal and Ageing Science, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool L7 8TX, UK (Y.A.K.)
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Hulme CH, Peffers MJ, Roberts S, Gallacher P, Jermin P, Wright KT. Proteomic Analyses of Autologous Chondrocyte Implantation Plasma Highlight Cartilage Acidic Protein 1 as a Candidate for Preclinical Screening. Am J Sports Med 2023; 51:1422-1433. [PMID: 37039559 PMCID: PMC10155277 DOI: 10.1177/03635465231156616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 12/13/2022] [Indexed: 04/12/2023]
Abstract
BACKGROUND Stratification is required to ensure that only patients likely to benefit receive autologous chondrocyte implantation (ACI). It would be advantageous to identify biomarkers to predict ACI outcome that are measurable in blood, avoiding the need for an invasive synovial fluid harvest. PURPOSE To assess if proteomic analyses can be used to identify novel candidate blood biomarkers in individuals who respond well or poorly to ACI. STUDY DESIGN Controlled laboratory study. METHODS Isobaric tagging for relative and absolute quantitation (iTRAQ) mass spectrometry was used to assess the proteome in plasma pooled from ACI responders (mean Lysholm improvement after ACI, 33; n = 10) or nonresponders (mean, -13; n = 10), collected at the time of surgery for cartilage harvest (stage 1) or implantation of culture-expanded chondrocytes (stage 2). An alternative proteomic method, label-free quantitation liquid chromatography-tandem mass spectrometry, was used to analyze plasma samples (majority matched to iTRAQ) individually. Differentially abundant proteins (±2.0-fold) were analyzed from both proteomic data sets, and markers of interest identified via pooled iTRAQ were validated via immunoassay of individual samples. RESULTS Protein differences could be detected in the plasma preoperatively between ACI responders and nonresponders (16 proteins; ≥±2.0-fold change; P < .05) using iTRAQ proteomics. The most pronounced plasma proteome shift was evident in response to stage 1 surgery in ACI nonresponders, with 48 proteins being differentially abundant between the procedures. Label-free quantitation liquid chromatography-tandem mass spectrometry analysis of these same plasma samples (nonpooled) resulted in very few proteins being identified that were significantly differentially abundant. However, this work highlighted cartilage acidic protein 1 as being increased preoperatively in nonresponders as compared with responders. CONCLUSIONS This study is the first to use proteomic techniques to profile the plasma of individuals treated with ACI. Despite iTRAQ analysis of pooled plasmas indicating that there are differences in the plasma proteome between responders and nonresponders to ACI, these findings were not replicated when assessed using an alternative nonpooled technique. This study highlights some of the difficulties in profiling the plasma proteome in an attempt to identify novel biomarkers. Regardless, cartilage acidic protein 1 has been identified as a protein candidate, which is detectable in plasma and can predict outcome to ACI before treatment. CLINICAL RELEVANCE Candidate plasma protein biomarkers identified in this study have the potential to help determine which patients will be best suited to treatment with ACI.
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Affiliation(s)
- Charlotte H. Hulme
- Centre for Regenerative Medicine Research, School of Pharmacy and Bioengineering, Keele University, Keele, UK
- Robert Jones and Agnes Hunt Orthopaedic Hospital Foundation Trust, Oswestry, UK
| | - Mandy J. Peffers
- Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, UK
| | - Sally Roberts
- Centre for Regenerative Medicine Research, School of Pharmacy and Bioengineering, Keele University, Keele, UK
- Robert Jones and Agnes Hunt Orthopaedic Hospital Foundation Trust, Oswestry, UK
| | - Pete Gallacher
- Robert Jones and Agnes Hunt Orthopaedic Hospital Foundation Trust, Oswestry, UK
| | - Paul Jermin
- Robert Jones and Agnes Hunt Orthopaedic Hospital Foundation Trust, Oswestry, UK
| | - Karina T. Wright
- Centre for Regenerative Medicine Research, School of Pharmacy and Bioengineering, Keele University, Keele, UK
- Robert Jones and Agnes Hunt Orthopaedic Hospital Foundation Trust, Oswestry, UK
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Activation of the kynurenine-aryl hydrocarbon receptor axis impairs the chondrogenic and chondroprotective effects of human umbilical cord-derived mesenchymal stromal cells in osteoarthritis rats. Hum Cell 2023; 36:163-177. [PMID: 36224488 DOI: 10.1007/s13577-022-00811-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 10/06/2022] [Indexed: 01/20/2023]
Abstract
It has been proven that intra-articular injection of mesenchymal stromal cells (MSCs) can alleviate cartilage damage in osteoarthritis (OA) by differentiating into chondrocytes and protecting inherent cartilage. However, the mechanism by which the OA articular microenvironment affects MSCs' therapeutic efficiency is yet to be fully elucidated. The aryl hydrocarbon receptor (AHR) is a ligand-activated transcription factor involved in various cellular processes, such as osteogenesis and immune regulation. Tryptophan (Trp) metabolites, most of which are endogenous ligand for AHR, are abnormally increased in synovial fluid (SF) of OA and rheumatoid arthritis (RA) patients. In this study, the effects of kynurenine (KYN), one of the most important metabolites of Trp, were evaluated on the chondrogenic and chondroprotective effects of human umbilical cord-derived mesenchymal stromal cells (hUC-MSCs). hUC-MSCs were cultured in conditioned medium containing different proportions of OA/RA SF, or stimulated with KYN directly, and then, AHR activation, proliferation, and chondrogenesis of hUC-MSCs were measured. Moreover, the chondroprotective efficiency of short hairpin-AHR-UC-MSC (shAHR-UC-MSC) was determined in a rat surgical OA model (right hind joint). OA SF could activate AHR signaling in hUC-MSCs in a concentration-dependent manner and inhibit the chondrogenic differentiation and proliferation ability of hUC-MSCs. Similar results were observed in hUC-MSCs stimulated with KYN in vitro. Notably, shAHR-UC-MSC exhibited superior therapeutic efficiency in OA rat upon intra-articular injection. Taken together, this study indicates that OA articular microenvironment is not conducive to the therapeutic effect of hUC-MSCs, which is related to the activation of the AHR pathway by tryptophan metabolites, and thus impairs the chondrogenic and chondroprotective effects of hUC-MSCs. AHR might be a promising modification target for further improving the therapeutic efficacy of hUC-MSCs on treatment of cartilage-related diseases such as OA.
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Aktuelle Therapieempfehlungen zur operativen Knorpeltherapie am Kniegelenk. ARTHROSKOPIE 2022. [DOI: 10.1007/s00142-022-00556-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ali N, Turkiewicz A, Hughes V, Folkesson E, Tjörnstand J, Neuman P, Önnerfjord P, Englund M. Proteomics profiling of human synovial fluid suggests increased protein interplay in early-osteoarthritis (OA) that is lost in late-stage OA. Mol Cell Proteomics 2022; 21:100200. [PMID: 35074580 PMCID: PMC8941261 DOI: 10.1016/j.mcpro.2022.100200] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 11/04/2021] [Accepted: 01/15/2022] [Indexed: 11/28/2022] Open
Abstract
The underlying molecular mechanisms in osteoarthritis (OA) development are largely unknown. This study explores the proteome and the pairwise interplay of proteins in synovial fluid from patients with late-stage knee OA (arthroplasty), early knee OA (arthroscopy due to degenerative meniscal tear), and from deceased controls without knee OA. Synovial fluid samples were analyzed using state-of-the-art mass spectrometry with data-independent acquisition. The differential expression of the proteins detected was clustered and evaluated with data mining strategies and a multilevel model. Group-specific slopes of associations were estimated between expressions of each pair of identified proteins to assess the co-expression (i.e., interplay) between the proteins in each group. More proteins were increased in early-OA versus controls than late-stage OA versus controls. For most of these proteins, the fold changes between late-stage OA versus controls and early-stage OA versus controls were remarkably similar suggesting potential involvement in the OA process. Further, for the first time, this study illustrated distinct patterns in protein co-expression suggesting that the interplay between the protein machinery is increased in early-OA and lost in late-stage OA. Further efforts should focus on earlier stages of the disease than previously considered. Synovial fluid proteomics study of different stages of osteoarthritis (OA). Higher catabolic activity is found in both early- and late-stage OA. Imbalance of the metabolic homeostasis in late-stage OA. Understanding early-stage OA may lead to finding better effective therapies.
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Regenerative Potential of Platelet Concentrate Lysate in Mechanically Injured Cartilage and Matrix-Associated Chondrocyte Implantation In Vitro. Int J Mol Sci 2021; 22:ijms222413179. [PMID: 34947976 PMCID: PMC8703707 DOI: 10.3390/ijms222413179] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 11/29/2021] [Accepted: 12/02/2021] [Indexed: 11/26/2022] Open
Abstract
Adjuvant therapy in autologous chondrocyte implantation (ACI) can control the post-traumatic environment and guide graft maturation to support cartilage repair. To investigate both aspects, we examined potential chondro-regenerative effects of lysed platelet concentrate (PC) and supplementary interleukin 10 (IL-10) on mechanically injured cartilage and on clinically used ACI scaffolds. ACI remnants and human cartilage explants, which were applied to an uniaxial unconfined compression as injury model, were treated with human IL-10 and/or PC from thrombocyte concentrates. We analyzed nuclear blebbing/TUNEL, sGAG content, immunohistochemistry, and the expression of COL1A1, COL2A1, COL10A1, SOX9, and ACAN. Post-injuriously, PC was associated with less cell death, increased COL2A1 expression, and decreased COL10A1 expression and, interestingly, the combination with Il-10 or Il-10 alone had no additional effects, except on COL10A1, which was most effectively decreased by the combination of PC and Il-10. The expression of COL2A1 or SOX9 was statistically not modulated by these substances. In contrast, in chondrocytes in ACI grafts the combination of PC and IL-10 had the most pronounced effects on all parameters except ACAN. Thus, using adjuvants such as PC and IL-10, preferably in combination, is a promising strategy for enhancing repair and graft maturation of autologous transplanted chondrocytes after cartilage injury.
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Bruyère O, Honvo G, Vidovic E, Cortet B. Assessment of the Response Profile to Hyaluronic Acid Plus Sorbitol Injection in Patients with Knee Osteoarthritis: Post-Hoc Analysis of a 6-Month Randomized Controlled Trial. Biomolecules 2021; 11:biom11101498. [PMID: 34680131 PMCID: PMC8533492 DOI: 10.3390/biom11101498] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/05/2021] [Accepted: 10/07/2021] [Indexed: 12/17/2022] Open
Abstract
In a previous randomized trial, the non-inferiority of two hyaluronic acid injections (Synolis VA versus Synvisc-One) was assessed in patients with knee OA, with a response rate of 79% for Synolis VA. To assess whether a responder profile could be established for this treatment modality, we used the Synolis VA arm of a published 6-month prospective, multicenter, comparative, randomized, double-blinded trial. At baseline and during the study, pain and function were assessed using the Western Ontario and McMaster Universities Arthritis Index (WOMAC) questionnaire. Ninety-six subjects from the intention-to-treat trial were included in the analysis. The 6-month change of WOMAC Pain with Synolis VA was not associated with any baseline clinical data. However, the change in WOMAC Function was significantly associated with its baseline level, even after adjustment for potential confounding variables (p = 0.028), i.e., a poorer physical function at baseline was associated with a better response. In conclusion, in addition to the high absolute response rate to Synolis VA, the probability of success is even increased if administered in patients with more limited physical function at baseline. Further research with other potential confounding clinical variables is warranted in order to better applicate the concept of personalized medicine.
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Affiliation(s)
- Olivier Bruyère
- WHO Collaborating Centre for Public Health Aspects of Musculo-Skeletal Health and Ageing, Division of Public Health, Epidemiology and Health Economics, University of Liège, 4000 Liège, Belgium;
- Correspondence: ; Tel.: +32-4-366-25-81
| | - Germain Honvo
- WHO Collaborating Centre for Public Health Aspects of Musculo-Skeletal Health and Ageing, Division of Public Health, Epidemiology and Health Economics, University of Liège, 4000 Liège, Belgium;
| | - Eduard Vidovic
- Aptissen SA Medical Department, 1228 Plan-les-Ouates, Switzerland;
| | - Bernard Cortet
- Department of Rheumatology and UR 4490, University Hospital of Lille, 59000 Lille, France;
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Son YB, Jeong YI, Jeong YW, Hossein MS, Olsson PO, Tinson A, Singh KK, Lee SY, Hwang WS. Cell Source-Dependent In Vitro Chondrogenic Differentiation Potential of Mesenchymal Stem Cell Established from Bone Marrow and Synovial Fluid of Camelus dromedarius. Animals (Basel) 2021; 11:ani11071918. [PMID: 34203207 PMCID: PMC8300404 DOI: 10.3390/ani11071918] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 06/17/2021] [Accepted: 06/21/2021] [Indexed: 01/15/2023] Open
Abstract
Simple Summary This is the first study to demonstrate the establishment and subsequent analysis of attributes, including the chondrogenic capacity of mesenchymal stem cells (MSCs) from bone marrow (BM) and synovial fluid (SF) from the same donor Camelus dromedarius. MSCs of SF origin were notably more efficient in their chondrogenic capacity and represent a potential source for camel regenerative medicine addressing chondrocyte-related problems. Abstract Mesenchymal stem cells (MSCs) are promising multipotent cells with applications for cartilage tissue regeneration in stem cell-based therapies. In cartilage regeneration, both bone marrow (BM-MSCs) and synovial fluid (SF-MSCs) are valuable sources. However, the cellular characteristics and chondrocyte differentiation potential were not reported in either of the camel stem cells. The in vitro chondrocyte differentiation competence of MSCs, from (BM and SF) sources of the same Camelus dromedaries (camel) donor, was determined. Both MSCs were evaluated on pluripotent markers and proliferation capacity. After passage three, both MSCs showed fibroblast-like morphology. The proliferation capacity was significantly increased in SF-MSCs compared to BM-MSCs. Furthermore, SF-MSCs showed an enhanced expression of transcription factors than BM-MSCs. SF-MSCs exhibited lower differentiation potential toward adipocytes than BM-MSCs. However, the osteoblast differentiation potential was similar in MSCs from both sources. Chondrogenic pellets obtained from SF-MSCs revealed higher levels of chondrocyte-specific markers than those from BM-MSCs. Additionally, glycosaminoglycan (GAG) content was elevated in SF-MSCs related to BM-MSCs. This is, to our knowledge, the first study to establish BM-MSCs and SF-MSCs from the same donor and to demonstrate in vitro differentiation potential into chondrocytes in camels.
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Affiliation(s)
- Young-Bum Son
- UAE Biotech Research Center, Abu Dhabi 30310, United Arab Emirates; (Y.-B.S.); (Y.I.J.); (Y.W.J.); (M.S.H.); (P.O.O.)
| | - Yeon Ik Jeong
- UAE Biotech Research Center, Abu Dhabi 30310, United Arab Emirates; (Y.-B.S.); (Y.I.J.); (Y.W.J.); (M.S.H.); (P.O.O.)
| | - Yeon Woo Jeong
- UAE Biotech Research Center, Abu Dhabi 30310, United Arab Emirates; (Y.-B.S.); (Y.I.J.); (Y.W.J.); (M.S.H.); (P.O.O.)
| | - Mohammad Shamim Hossein
- UAE Biotech Research Center, Abu Dhabi 30310, United Arab Emirates; (Y.-B.S.); (Y.I.J.); (Y.W.J.); (M.S.H.); (P.O.O.)
| | - Per Olof Olsson
- UAE Biotech Research Center, Abu Dhabi 30310, United Arab Emirates; (Y.-B.S.); (Y.I.J.); (Y.W.J.); (M.S.H.); (P.O.O.)
| | - Alex Tinson
- Hilli E.T. Cloning and Surgical Centre Presidential Camels and Camel Racing Affairs, Al-Ain 17292, United Arab Emirates; (A.T.); (K.K.S.)
| | - Kuhad Kuldip Singh
- Hilli E.T. Cloning and Surgical Centre Presidential Camels and Camel Racing Affairs, Al-Ain 17292, United Arab Emirates; (A.T.); (K.K.S.)
| | - Sang-Yun Lee
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine and Research Institute of Life Science, Gyeongsang National University, Jinju 52828, Korea;
| | - Woo Suk Hwang
- UAE Biotech Research Center, Abu Dhabi 30310, United Arab Emirates; (Y.-B.S.); (Y.I.J.); (Y.W.J.); (M.S.H.); (P.O.O.)
- Correspondence:
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Hulme CH, Peffers MJ, Harrington GMB, Wilson E, Perry J, Roberts S, Gallacher P, Jermin P, Wright KT. Identification of Candidate Synovial Fluid Biomarkers for the Prediction of Patient Outcome After Microfracture or Osteotomy. Am J Sports Med 2021; 49:1512-1523. [PMID: 33787363 DOI: 10.1177/0363546521995565] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Biomarkers are needed to predict clinical outcomes for microfracture and osteotomy surgeries to ensure patients can be better stratified to receive the most appropriate treatment. PURPOSE To identify novel biomarker candidates and to investigate the potential of a panel of protein biomarkers for the prediction of clinical outcome after treatment with microfracture or osteotomy. STUDY DESIGN Descriptive laboratory study. METHODS To identify novel candidate biomarker proteins, we used label-free quantitation after liquid chromatography-tandem mass spectrometry of dynamic range-compressed synovial fluids (SFs) from individuals who responded excellently or poorly (based on change in Lysholm score) to microfracture (n = 6) or osteotomy (n = 7). Biomarkers that were identified in this proteomic analysis or that relate to osteoarthritis (OA) severity or have predictive value in another early OA therapy (autologous cell implantation) were measured in the SF of 19 and 13 patients before microfracture or osteotomy, respectively, using commercial immunoassays, and were normalized to urea. These were aggrecanase-1 (ADAMTS-4), cartilage oligomeric matrix protein (COMP), hyaluronan (HA), lymphatic vessel endothelial hyaluronan receptor 1 (LYVE-1), matrix metalloproteinase 1 and 3, soluble CD14, S100 calcium binding protein A13, and 14-3-3 protein theta (YWHAQ). Levels of COMP and HA were also measured in the plasma of these patients. To find predictors of postoperative function, multivariable regression analyses were performed. RESULTS Proteomic analyses highlighted YWHAQ and LYVE-1 as being differentially abundant between the clinical responders/improvers and nonresponders after microfracture. A linear regression model after backward variable selection could relate preoperative concentrations of SF proteins (HA, YWHAQ, LYVE-1), activity of ADAMTS-4, and patient demographic characteristics (smoker status and sex) with Lysholm score 12 months after microfracture. Further, a generalized linear model with elastic net penalization indicated that lower preoperative activity of ADAMTS-4 in SF, being a nonsmoker, and being younger at the time of operation were indicative of a higher postoperative Lysholm score (improved joint function) after osteotomy surgery. CONCLUSION We have identified biomarkers and generated regression models with the potential to predict clinical outcome in patients treated with microfracture or osteotomy of the knee. CLINICAL RELEVANCE Candidate protein biomarkers identified in this study have the potential to help determine which patients will be best suited to treatment with microfracture or osteotomy.
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Affiliation(s)
- Charlotte H Hulme
- School of Pharmacy and Bioengineering, Keele University, Keele, Staffordshire, UK
- Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, Shropshire, UK
| | - Mandy J Peffers
- Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, UK
- Centre for Proteome Research, Institute of Integrative Biology, University of Liverpool, Liverpool, UK
| | - Gabriel Mateus Bernardo Harrington
- School of Pharmacy and Bioengineering, Keele University, Keele, Staffordshire, UK
- Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, Shropshire, UK
| | - Emma Wilson
- Chester Medical School, Chester University, Chester, UK
| | - Jade Perry
- School of Pharmacy and Bioengineering, Keele University, Keele, Staffordshire, UK
- Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, Shropshire, UK
| | - Sally Roberts
- School of Pharmacy and Bioengineering, Keele University, Keele, Staffordshire, UK
- Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, Shropshire, UK
| | - Pete Gallacher
- Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, Shropshire, UK
| | - Paul Jermin
- Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, Shropshire, UK
| | - Karina T Wright
- School of Pharmacy and Bioengineering, Keele University, Keele, Staffordshire, UK
- Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, Shropshire, UK
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Anderson J, Phelan MM, Rubio-Martinez LM, Fitzgerald MM, Jones SW, Clegg PD, Peffers MJ. Optimization of Synovial Fluid Collection and Processing for NMR Metabolomics and LC-MS/MS Proteomics. J Proteome Res 2020; 19:2585-2597. [PMID: 32227958 PMCID: PMC7341532 DOI: 10.1021/acs.jproteome.0c00035] [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] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Synovial fluid (SF) is of great interest for the investigation of orthopedic pathologies, as it is in close proximity to various tissues that are primarily altered during these disease processes and can be collected using minimally invasive protocols. Multi-"omic" approaches are commonplace, although little consideration is often given for multiple analysis techniques at sample collection. Nuclear magnetic resonance (NMR) metabolomics and liquid chromatography tandem mass spectrometry (LC-MS/MS) proteomics are two complementary techniques particularly suited to the study of SF. However, currently there are no agreed upon standard protocols that are published for SF collection and processing for use with NMR metabolomic analysis. Furthermore, the large protein concentration dynamic range present within SF can mask the detection of lower abundance proteins in proteomics. While combinational ligand libraries (ProteoMiner columns) have been developed to reduce this dynamic range, their reproducibility when used in conjunction with SF, or on-bead protein digestion protocols, has yet to be investigated. Here we employ optimized protocols for the collection, processing, and storage of SF for NMR metabolite analysis and LC-MS/MS proteome analysis, including a Lys-C endopeptidase digestion step prior to tryptic digestion, which increased the number of protein identifications and improved reproducibility for on-bead ProteoMiner digestion.
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Affiliation(s)
- James
R. Anderson
- Institute
of Ageing and Chronic Disease, University
of Liverpool, Liverpool L69 3BX, U.K.
| | - Marie M. Phelan
- Institute
of Integrative Biology, University of Liverpool, Liverpool L69 3BX, U.K.,HLS
Technology Directorate, University of Liverpool, Liverpool L69 3BX, U.K.
| | - Luis M. Rubio-Martinez
- Institute
of Ageing and Chronic Disease, University
of Liverpool, Liverpool L69 3BX, U.K.,Institute
of Veterinary Science, University of Liverpool, Leahurst Campus, Neston CH64 7TE, U.K.
| | - Matthew M. Fitzgerald
- Institute
of Veterinary Science, University of Liverpool, Leahurst Campus, Neston CH64 7TE, U.K.
| | - Simon W. Jones
- Institute
of Inflammation and Ageing, University of
Birmingham, Birmingham B15 2TT, U.K.
| | - Peter D. Clegg
- Institute
of Ageing and Chronic Disease, University
of Liverpool, Liverpool L69 3BX, U.K.
| | - Mandy J. Peffers
- Institute
of Ageing and Chronic Disease, University
of Liverpool, Liverpool L69 3BX, U.K.,. Tel: 07872692102
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11
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Merkely G, Farr J, Saris D, Lattermann C. Cartilage Surface Treatment: Factors Affecting Success and Failure Mechanisms. OPER TECHN SPORT MED 2020. [DOI: 10.1016/j.otsm.2019.150711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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12
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Ogura T, Bryant T, Merkely G, Mosier BA, Minas T. Survival Analysis of Revision Autologous Chondrocyte Implantation for Failed ACI. Am J Sports Med 2019; 47:3212-3220. [PMID: 31589471 DOI: 10.1177/0363546519876630] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Autologous chondrocyte implantation (ACI) provides a successful outcome for treating articular cartilage lesions. However, there have been very few reports on the clinical outcomes of revision ACI for failed ACI. PURPOSE To evaluate clinical outcomes in patients who underwent revision ACI of the knee for failure of an initial ACI and to determine the factors affecting the survival rate. STUDY DESIGN Case series; Level of evidence, 4. METHODS A review of a prospectively collected data set was performed from patients who underwent revision ACI of the knee for failure of an initial ACI between 1995 and 2014 by a single surgeon. The authors evaluated 53 patients (53 knees; mean age, 38 years) over a mean 11.2-year follow-up (range, 2-20). A total of 62 cartilage lesions were treated for failed graft lesions after an initial ACI, and 31 new cartilage lesions were treated at revision ACI, as there was progression of disease. Overall, 93 cartilage lesions (mean, 1.8 lesions per knee) with a total surface area of 7.4 cm2 (range, 2.5-18 cm2) per knee were treated at revision ACI. Survival analysis was performed with the Kaplan-Meier method, with ACI graft failure or conversion to a prosthetic arthroplasty as the endpoint. The modified Cincinnati Knee Rating Scale, Western Ontario and McMaster Universities Osteoarthritis Index, visual analog scale, and 36-Item Short Form Health Survey were used to evaluate clinical outcomes. Patients also self-reported knee function and satisfaction. Standard radiographs were evaluated with Kellgren-Lawrence grades. RESULTS Survival rates were 71% and 53% at 5 and 10 years, respectively. Survival subanalysis revealed a trend that patients without previous cartilage repair procedures before an initial ACI had better survival rates than those with such procedures (81% vs 62% at 5 years, 64% vs 42% at 10 years, P = .0958). Patients with retained grafts showed significant improvement in pain and function, with a high level of satisfaction. At a mean 5.1 years postoperatively, 18 of 27 successful knees were radiographically assessed with no significant osteoarthritis progression. Outcomes for 26 patients were considered failures (mean, 4.9 years postoperatively), in which 15 patients had prosthetic arthroplasty (mean, 4.6 years) and the other 11 patients had revision cartilage repair (mean, 5.4 years) and thus could maintain their native knees. CONCLUSION Results of revision ACI for patients who failed ACI showed acceptable clinical outcomes. Revision ACI may be an option for young patients after failed initial ACI, particularly patients without previous cartilage repair procedures and those who desire to maintain their native knees.
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Affiliation(s)
- Takahiro Ogura
- Cartilage Repair Center, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.,Sports Medicine Center, Funabashi Orthopaedic Hospital, Funabashi, Japan
| | - Tim Bryant
- Cartilage Repair Center, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.,Cartilage Repair Center, Paley Orthopedic and Spine Institute, St Mary's Hospital, West Palm Beach, Florida, USA
| | - Gergo Merkely
- Cartilage Repair Center, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.,Department of Traumatology, Semmelweis University, Budapest, Hungary
| | - Brian A Mosier
- Cartilage Repair Center, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.,Allegheny Health Network, Monroeville, Pennsylvania, USA
| | - Tom Minas
- Cartilage Repair Center, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.,Cartilage Repair Center, Paley Orthopedic and Spine Institute, St Mary's Hospital, West Palm Beach, Florida, USA
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13
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Peffers MJ, Smagul A, Anderson JR. Proteomic analysis of synovial fluid: current and potential uses to improve clinical outcomes. Expert Rev Proteomics 2019; 16:287-302. [PMID: 30793992 DOI: 10.1080/14789450.2019.1578214] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
INTRODUCTION Synovial fluid (SF) is in close proximity to tissues which are primarily altered during articular disease and has significant potential to better understand the underlying disease pathogeneses of articular pathologies and biomarker discovery. Although development of mass spectrometry-based methods has allowed faster and higher sensitivity techniques, interrogation of the SF proteome has been hindered by its large protein concentration dynamic range, impeding quantification of lower abundant proteins. Areas covered: Recent advances have developed methodologies to reduce the large protein concentration dynamic range of SF and subsequently allow deeper exploration of the SF proteome. This review concentrates on methods to overcome biofluid complexity, mass spectrometry proteomics methodologies, extracellular vesicles proteomics and the application of advances within the field in clinical disease, including osteoarthritis, rheumatoid arthritis, spondyloarthritis and juvenile arthritis. A narrative review was conducted with articles searched using PubMed, 1991-2018. Expert opinion: The SF proteomics field faces various challenges, including the requirement for rigorous and standardised methods of sample collection/storage, the sensitivity and specificity of proteomic assays, techniques to combat the large protein concentration dynamic range and comprehensive data analysis to reduce falsely identified markers. Additionally, there are challenges in developing multi 'omic' integration techniques, with computational integration enhancing analysis.
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Affiliation(s)
- Mandy Jayne Peffers
- a Comparative Musculoskeletal Biology, Institute of Ageing and Chronic Disease , University of Liverpool , Liverpool , UK
| | - Aibek Smagul
- a Comparative Musculoskeletal Biology, Institute of Ageing and Chronic Disease , University of Liverpool , Liverpool , UK
| | - James Ross Anderson
- a Comparative Musculoskeletal Biology, Institute of Ageing and Chronic Disease , University of Liverpool , Liverpool , UK
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14
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Islam A, Fossum V, Hansen AK, Urbarova I, Knutsen G, Martinez-Zubiaurre I. In vitro chondrogenic potency of surplus chondrocytes from autologous transplantation procedures does not predict short-term clinical outcomes. BMC Musculoskelet Disord 2019; 20:19. [PMID: 30630436 PMCID: PMC6329094 DOI: 10.1186/s12891-018-2380-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Accepted: 12/12/2018] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Autologous chondrocyte implantation (ACI) has been used over the last two decades to treat focal cartilage lesions aiming to delay or prevent the onset of osteoarthritis; however, some patients do not respond adequately to the procedure. A number of biomarkers that can forecast the clinical potency of the cells have been proposed, but evidence for the relationship between in vitro chondrogenic potential and clinical outcomes is missing. In this study, we explored if the ability of cells to make cartilage in vitro correlates with ACI clinical outcomes. Additionally, we evaluated previously proposed chondrogenic biomarkers and searched for new biomarkers in the chondrocyte proteome capable of predicting clinical success or failure after ACI. METHODS The chondrogenic capacity of chondrocytes derived from 14 different donors was defined based on proteoglycans staining and visual histological grading of tissues generated using the pellet culture system. A Lysholm score of 65 two years post-ACI was used as a cut-off to categorise "success" and "failure" clinical groups. A set of predefined biomarkers were investigated in the chondrogenic and clinical outcomes groups using flow cytometry and qPCR. High-throughput proteomics of cell lysates was used to search for putative biomarkers to predict chondrogenesis and clinical outcomes. RESULTS Visual histological grading of pellets categorised donors into "high" and "low" chondrogenic groups. Direct comparison between donor-matched in vitro chondrogenic potential and clinical outcomes revealed no significant associations. Comparative analyses of selected biomarkers revealed that expression of CD106 and TGF-β-receptor-3 was enhanced in the low chondrogenic group, while expression of integrin-α1 and integrin-β1 was significantly upregulated in the high chondrogenic group. Additionally, increased surface expression of CD166 was observed in the clinical success group, while the gene expression of cartilage oligomeric matrix protein was downregulated. High throughput proteomics revealed no differentially expressed proteins from success and failure clinical groups, whereas seven proteins including prolyl-4-hydroxylase 1 were differentially expressed when comparing chondrogenic groups. CONCLUSION In our limited material, we found no correlation between in vitro cartilage-forming capacity and clinical outcomes, and argue on the limitations of using the chondrogenic potential of cells or markers for chondrogenesis as predictors of clinical outcomes.
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Affiliation(s)
- Ashraful Islam
- Department of Clinical Medicine, UiT The Arctic University of Norway, Tromsø, Norway.
| | - Vegard Fossum
- Department of Orthopaedic Surgery, University Hospital of Northern Norway, Tromsø, Norway
| | - Ann Kristin Hansen
- Department of Clinical Medicine, UiT The Arctic University of Norway, Tromsø, Norway.,Department of Orthopaedic Surgery, University Hospital of Northern Norway, Tromsø, Norway
| | - Ilona Urbarova
- Department of Medical Biology, Tromsø University Proteomics Platform, UiT The Arctic University of Norway, Tromsø, Norway
| | - Gunnar Knutsen
- Department of Orthopaedic Surgery, University Hospital of Northern Norway, Tromsø, Norway
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15
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Hosseininia S, Önnerfjord P, Dahlberg LE. Targeted proteomics of hip articular cartilage in OA and fracture patients. J Orthop Res 2019; 37:131-135. [PMID: 30307059 DOI: 10.1002/jor.24158] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Accepted: 09/25/2018] [Indexed: 02/04/2023]
Abstract
Osteoarthritis (OA) is a common chronic disease, causing joint pain and reduced physical function. OA progresses slowly over a period of several years; to avoid an exacerbation of symptoms, it is critical to able to diagnose the disease as early as possible. The identification of disease-specific biomarkers may enable such an early diagnosis. The aim of this study was to investigate potential biomarkers of cartilage metabolism in OA using a targeted multiplex approach by single reaction monitoring. Intact looking cartilage of femoral heads from patients with OA (n = 9) or femoral neck fractures (n = 12) was examined. Variations and relative quantifications of 35 selected extracellular matrix (ECM) proteins were analyzed using nano-LC coupled to tandem mass spectrometry. Our study showed statistically significantly increased levels of asporin (ASPN), mimecan (MIME), matrilin-3 (MATN3), cartilage intermediate layer protein 2 (CILP-2), collagen VI, collagen II, and collagen III N-propeptide in OA cartilage compared with non-OA cartilage. The other proteins in the protein panel did not appear to be different between the two groups. In conclusion, we identified a number of cartilage matrix proteins which may represent early molecular changes in the OA process and may have potential to predict the development of OA. © 2018 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res.
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Affiliation(s)
- Shahrzad Hosseininia
- Lund University, Faculty of Medicine, Department of Clinical Sciences Lund, Orthopaedics, Lund, Sweden
| | - Patrik Önnerfjord
- Faculty of Medicine, Department of Clinical Sciences Lund, Section of Rheumatology and Molecular Skeletal Biology, Centre of Excellence in Biological and Medical Mass Spectrometry, Lund University, Lund, Sweden
| | - Leif E Dahlberg
- Lund University, Skane University Hospital, Department of Clinical Sciences Lund, Orthopaedics, Lund, Sweden
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16
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Hulme CH, Wilson EL, Fuller HR, Roberts S, Richardson JB, Gallacher P, Peffers MJ, Shirran SL, Botting CH, Wright KT. Two independent proteomic approaches provide a comprehensive analysis of the synovial fluid proteome response to Autologous Chondrocyte Implantation. Arthritis Res Ther 2018; 20:87. [PMID: 29720234 PMCID: PMC5932832 DOI: 10.1186/s13075-018-1573-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Accepted: 03/21/2018] [Indexed: 02/06/2023] Open
Abstract
Background Autologous chondrocyte implantation (ACI) has a failure rate of approximately 20%, but it is yet to be fully understood why. Biomarkers are needed that can pre-operatively predict in which patients it is likely to fail, so that alternative or individualised therapies can be offered. We previously used label-free quantitation (LF) with a dynamic range compression proteomic approach to assess the synovial fluid (SF) of ACI responders and non-responders. However, we were able to identify only a few differentially abundant proteins at baseline. In the present study, we built upon these previous findings by assessing higher-abundance proteins within this SF, providing a more global proteomic analysis on the basis of which more of the biology underlying ACI success or failure can be understood. Methods Isobaric tagging for relative and absolute quantitation (iTRAQ) proteomic analysis was used to assess SF from ACI responders (mean Lysholm improvement of 33; n = 14) and non-responders (mean Lysholm decrease of 14; n = 13) at the two stages of surgery (cartilage harvest and chondrocyte implantation). Differentially abundant proteins in iTRAQ and combined iTRAQ and LF datasets were investigated using pathway and network analyses. Results iTRAQ proteomic analysis confirmed our previous finding that there is a marked proteomic shift in response to cartilage harvest (70 and 54 proteins demonstrating ≥ 2.0-fold change and p < 0.05 between stages I and II in responders and non-responders, respectively). Further, it highlighted 28 proteins that were differentially abundant between responders and non-responders to ACI, which were not found in the LF study, 16 of which were altered at baseline. The differential expression of two proteins (complement C1s subcomponent and matrix metalloproteinase 3) was confirmed biochemically. Combination of the iTRAQ and LF proteomic datasets generated in-depth SF proteome information that was used to generate interactome networks representing ACI success or failure. Functional pathways that are dysregulated in ACI non-responders were identified, including acute-phase response signalling. Conclusions Several candidate biomarkers for baseline prediction of ACI outcome were identified. A holistic overview of the SF proteome in responders and non-responders to ACI has been profiled, providing a better understanding of the biological pathways underlying clinical outcome, particularly the differential response to cartilage harvest in non-responders. Electronic supplementary material The online version of this article (10.1186/s13075-018-1573-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Charlotte H Hulme
- Institute of Science and Technology in Medicine, Keele University, Keele, Staffordshire, ST5 5BG, UK.,Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, Shropshire, SY10 7AG, UK
| | - Emma L Wilson
- Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, Shropshire, SY10 7AG, UK.,Chester Medical School, Chester University, Chester, CH1 4BJ, UK
| | - Heidi R Fuller
- Institute of Science and Technology in Medicine, Keele University, Keele, Staffordshire, ST5 5BG, UK
| | - Sally Roberts
- Institute of Science and Technology in Medicine, Keele University, Keele, Staffordshire, ST5 5BG, UK.,Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, Shropshire, SY10 7AG, UK
| | - James B Richardson
- Institute of Science and Technology in Medicine, Keele University, Keele, Staffordshire, ST5 5BG, UK.,Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, Shropshire, SY10 7AG, UK
| | - Pete Gallacher
- Institute of Science and Technology in Medicine, Keele University, Keele, Staffordshire, ST5 5BG, UK.,Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, Shropshire, SY10 7AG, UK
| | - Mandy J Peffers
- Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, L7 8TX, UK
| | - Sally L Shirran
- BSRC Mass Spectrometry and Proteomics Facility, University of St Andrews, North Haugh, Fife, KY16 9ST, UK
| | - Catherine H Botting
- BSRC Mass Spectrometry and Proteomics Facility, University of St Andrews, North Haugh, Fife, KY16 9ST, UK
| | - Karina T Wright
- Institute of Science and Technology in Medicine, Keele University, Keele, Staffordshire, ST5 5BG, UK. .,Robert Jones and Agnes Hunt Orthopaedic Hospital, Oswestry, Shropshire, SY10 7AG, UK.
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17
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Hulme CH, Stevens A, Dunn W, Heazell AEP, Hollywood K, Begley P, Westwood M, Myers JE. Identification of the functional pathways altered by placental cell exposure to high glucose: lessons from the transcript and metabolite interactome. Sci Rep 2018; 8:5270. [PMID: 29588451 PMCID: PMC5869594 DOI: 10.1038/s41598-018-22535-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Accepted: 02/19/2018] [Indexed: 02/06/2023] Open
Abstract
The specific consequences of hyperglycaemia on placental metabolism and function are incompletely understood but likely contribute to poor pregnancy outcomes associated with diabetes mellitus (DM). This study aimed to identify the functional biochemical pathways perturbed by placental exposure to high glucose levels through integrative analysis of the trophoblast transcriptome and metabolome. The human trophoblast cell line, BeWo, was cultured in 5 or 25 mM glucose, as a model of the placenta in DM. Transcriptomic analysis using microarrays, demonstrated 5632 differentially expressed gene transcripts (≥± 1.3 fold change (FC)) following exposure to high glucose. These genes were used to generate interactome models of transcript response using BioGRID (non-inferred network: 2500 nodes (genes) and 10541 protein-protein interactions). Ultra performance-liquid chromatography-mass spectrometry (MS) and gas chromatography-MS analysis of intracellular extracts and culture medium were used to assess the response of metabolite profiles to high glucose concentration. The interactions of altered genes and metabolites were assessed using the MetScape interactome database, resulting in an integrated model of systemic transcriptome (2969 genes) and metabolome (41 metabolites) response within placental cells exposed to high glucose. The functional pathways which demonstrated significant change in response to high glucose included fatty acid β-oxidation, phospholipid metabolism and phosphatidylinositol phosphate signalling.
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Affiliation(s)
- C H Hulme
- Maternal and Fetal Health Research Centre, Division of Developmental Biology & Medicine, School of Medical Sciences, University of Manchester, Manchester Academic Health Sciences Centre, Manchester, M13 9WL, UK.,Maternal and Fetal Health Research Centre, Central Manchester University Hospitals NHS Foundation Trust, St Mary's Hospital, Manchester Academic Health sciences Centre, Manchester, M13 9WL, UK
| | - A Stevens
- Division of Developmental Biology & Medicine, Faculty of Biology, Medicine & Health University of Manchester, Manchester Academic Health Sciences Centre, Manchester, M13 9WL, UK
| | - W Dunn
- Centre for Advanced Discovery and Experimental Therapeutics (CADET), Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Sciences Centre, Manchester, M13 9WL, UK.,Centre for Endocrinology and Diabetes, Institute of Human Development, Faculty of Medical and Human Sciences, University of Manchester, Manchester, M13 9WL, UK.,School of Biosciences, Phenome Centre Birmingham and Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, B15 2TT, UK
| | - A E P Heazell
- Maternal and Fetal Health Research Centre, Division of Developmental Biology & Medicine, School of Medical Sciences, University of Manchester, Manchester Academic Health Sciences Centre, Manchester, M13 9WL, UK.,Maternal and Fetal Health Research Centre, Central Manchester University Hospitals NHS Foundation Trust, St Mary's Hospital, Manchester Academic Health sciences Centre, Manchester, M13 9WL, UK
| | - K Hollywood
- Centre for Advanced Discovery and Experimental Therapeutics (CADET), Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Sciences Centre, Manchester, M13 9WL, UK.,Centre for Endocrinology and Diabetes, Institute of Human Development, Faculty of Medical and Human Sciences, University of Manchester, Manchester, M13 9WL, UK.,Manchester Institute of Biotechnology and School of Chemistry, University of Manchester, 131 Princess Street, Manchester, M1 7DN, UK
| | - P Begley
- Centre for Advanced Discovery and Experimental Therapeutics (CADET), Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Sciences Centre, Manchester, M13 9WL, UK.,Centre for Endocrinology and Diabetes, Institute of Human Development, Faculty of Medical and Human Sciences, University of Manchester, Manchester, M13 9WL, UK
| | - M Westwood
- Maternal and Fetal Health Research Centre, Division of Developmental Biology & Medicine, School of Medical Sciences, University of Manchester, Manchester Academic Health Sciences Centre, Manchester, M13 9WL, UK.,Maternal and Fetal Health Research Centre, Central Manchester University Hospitals NHS Foundation Trust, St Mary's Hospital, Manchester Academic Health sciences Centre, Manchester, M13 9WL, UK
| | - J E Myers
- Maternal and Fetal Health Research Centre, Division of Developmental Biology & Medicine, School of Medical Sciences, University of Manchester, Manchester Academic Health Sciences Centre, Manchester, M13 9WL, UK. .,Maternal and Fetal Health Research Centre, Central Manchester University Hospitals NHS Foundation Trust, St Mary's Hospital, Manchester Academic Health sciences Centre, Manchester, M13 9WL, UK.
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