1
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Wakale S, Wu X, Sonar Y, Sun A, Fan X, Crawford R, Prasadam I. How are Aging and Osteoarthritis Related? Aging Dis 2023; 14:592-604. [PMID: 37191424 PMCID: PMC10187698 DOI: 10.14336/ad.2022.0831] [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: 05/23/2022] [Accepted: 08/31/2022] [Indexed: 05/17/2023] Open
Abstract
Osteoarthritis is the most prevalent degenerative joint disease and one of the leading causes of physical impairment in the world's aging population. The human lifespan has significantly increased as a result of scientific and technological advancements. According to estimates, the world's elderly population will increase by 20% by 2050. Aging and age-related changes are discussed in this review in relation to the development of OA. We specifically discussed the cellular and molecular changes that occur in the chondrocytes during aging and how these changes may make synovial joints more susceptible to OA development. These changes include chondrocyte senescence, mitochondrial dysfunction, epigenetic modifications, and decreased growth factor response. The age-associated changes occur not only in the chondrocytes but also in the matrix, subchondral bone, and synovium. This review aims to provide an overview of the interplay between chondrocytes and matrix and how age-related changes affect the normal function of cartilage and contribute to OA development. Understanding the alterations that affect the function of chondrocytes will emerge new possibilities for prospective therapeutic options for the treatment of OA.
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Affiliation(s)
- Shital Wakale
- Centre for Biomedical Technologies, Faculty of Engineering, Queensland University of Technology, Brisbane, Queensland, Australia.
| | - Xiaoxin Wu
- Centre for Biomedical Technologies, Faculty of Engineering, Queensland University of Technology, Brisbane, Queensland, Australia.
| | - Yogita Sonar
- Centre for Biomedical Technologies, Faculty of Engineering, Queensland University of Technology, Brisbane, Queensland, Australia.
| | - Antonia Sun
- Centre for Biomedical Technologies, Faculty of Engineering, Queensland University of Technology, Brisbane, Queensland, Australia.
| | - Xiwei Fan
- Centre for Biomedical Technologies, Faculty of Engineering, Queensland University of Technology, Brisbane, Queensland, Australia.
| | - Ross Crawford
- Centre for Biomedical Technologies, Faculty of Engineering, Queensland University of Technology, Brisbane, Queensland, Australia.
- Orthopaedic Department, The Prince Charles Hospital, Brisbane, Queensland, Australia.
| | - Indira Prasadam
- Centre for Biomedical Technologies, Faculty of Engineering, Queensland University of Technology, Brisbane, Queensland, Australia.
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2
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Dillemans L, De Somer L, Neerinckx B, Proost P. A review of the pleiotropic actions of the IFN-inducible CXC chemokine receptor 3 ligands in the synovial microenvironment. Cell Mol Life Sci 2023; 80:78. [PMID: 36862204 PMCID: PMC11071919 DOI: 10.1007/s00018-023-04715-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 01/09/2023] [Accepted: 02/01/2023] [Indexed: 03/03/2023]
Abstract
Chemokines are pivotal players in instigation and perpetuation of synovitis through leukocytes egress from the blood circulation into the inflamed articulation. Multitudinous literature addressing the involvement of the dual-function interferon (IFN)-inducible chemokines CXCL9, CXCL10 and CXCL11 in diseases characterized by chronic inflammatory arthritis emphasizes the need for detangling their etiopathological relevance. Through interaction with their mutual receptor CXC chemokine receptor 3 (CXCR3), the chemokines CXCL9, CXCL10 and CXCL11 exert their hallmark function of coordinating directional trafficking of CD4+ TH1 cells, CD8+ T cells, NK cells and NKT cells towards inflammatory niches. Among other (patho)physiological processes including infection, cancer, and angiostasis, IFN-inducible CXCR3 ligands have been implicated in autoinflammatory and autoimmune diseases. This review presents a comprehensive overview of the abundant presence of IFN-induced CXCR3 ligands in bodily fluids of patients with inflammatory arthritis, the outcomes of their selective depletion in rodent models, and the attempts at developing candidate drugs targeting the CXCR3 chemokine system. We further propose that the involvement of the CXCR3 binding chemokines in synovitis and joint remodeling encompasses more than solely the directional ingress of CXCR3-expressing leukocytes. The pleotropic actions of the IFN-inducible CXCR3 ligands in the synovial niche reiteratively illustrate the extensive complexity of the CXCR3 chemokine network, which is based on the intercommunion of IFN-inducible CXCR3 ligands with distinct CXCR3 isoforms, enzymes, cytokines, and infiltrated and resident cells present in the inflamed joints.
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Affiliation(s)
- Luna Dillemans
- Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium
| | - Lien De Somer
- Laboratory of Immunobiology, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium
| | - Barbara Neerinckx
- Skeletal Biology and Engineering Research Center, Department of Development and Regeneration, KU Leuven, Leuven, Belgium
- Department of Rheumatology, University Hospitals Leuven, Leuven, Belgium
| | - Paul Proost
- Laboratory of Molecular Immunology, Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, Leuven, Belgium.
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3
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Liu Y, Zhang Z, Li T, Xu H, Zhang H. Senescence in osteoarthritis: from mechanism to potential treatment. Arthritis Res Ther 2022; 24:174. [PMID: 35869508 PMCID: PMC9306208 DOI: 10.1186/s13075-022-02859-x] [Citation(s) in RCA: 54] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Accepted: 07/05/2022] [Indexed: 12/12/2022] Open
Abstract
Osteoarthritis (OA) is an age-related cartilage degenerative disease, and chondrocyte senescence has been extensively studied in recent years. Increased numbers of senescent chondrocytes are found in OA cartilage. Selective clearance of senescent chondrocytes in a post-traumatic osteoarthritis (PTOA) mouse model ameliorated OA development, while intraarticular injection of senescent cells induced mouse OA. However, the means and extent to which senescence affects OA remain unclear. Here, we review the latent mechanism of senescence in OA and propose potential therapeutic methods to target OA-related senescence, with an emphasis on immunotherapies. Natural killer (NK) cells participate in the elimination of senescent cells in multiple organs. A relatively comprehensive discussion is presented in that section. Risk factors for OA are ageing, obesity, metabolic disorders and mechanical overload. Determining the relationship between known risk factors and senescence will help elucidate OA pathogenesis and identify optimal treatments.
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4
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An insight into current advances on pharmacology, pharmacokinetics, toxicity and detoxification of aconitine. Biomed Pharmacother 2022; 151:113115. [PMID: 35605296 DOI: 10.1016/j.biopha.2022.113115] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2022] [Revised: 05/05/2022] [Accepted: 05/10/2022] [Indexed: 11/20/2022] Open
Abstract
Aconitine is a diterpenoid alkaloid, which mainly exists in the plants of Aconitum. In the last decade, a plethora of studies on the pharmacological activities of aconitine has been conducted and demonstrated that aconitine possessed an extensive range of pharmacological activities such as anti-tumor, anti-inflammatory, analgesic, local anesthesia, and immunomodulatory effects. Pharmacokinetic studies indicated that aconitine may have the characteristics of poor bioavailability, wide distribution, and slow elimination. However, studies have also found that aconitine has toxic effects on the heart, nerves, embryos, etc. Therefore, we believe that aconitine may not be suitable for heart patients and pregnant women to treat related diseases. It is important to note that all of these pharmacological effects require further high-quality studies to determine the clinical efficacy of aconitine. This review aims to summarize the advances in pharmacological, pharmacokinetics, toxicity, and detoxification of aconitine in the last decade with an emphasis on its anti-tumor and anti-inflammatory activities, to provide researchers with the latest information and point out the limitations of relevant research at the current stage and the aspects that should be strengthened in future research.
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5
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Applications of transcriptomics in support of drug development for osteoarthritis. OSTEOARTHRITIS AND CARTILAGE OPEN 2021; 3:100221. [DOI: 10.1016/j.ocarto.2021.100221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 10/31/2021] [Accepted: 11/16/2021] [Indexed: 11/22/2022] Open
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6
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Bryson BL, Tamagno I, Taylor SE, Parameswaran N, Chernosky NM, Balasubramaniam N, Jackson MW. Aberrant Induction of a Mesenchymal/Stem Cell Program Engages Senescence in Normal Mammary Epithelial Cells. Mol Cancer Res 2020; 19:651-666. [PMID: 33443106 DOI: 10.1158/1541-7786.mcr-19-1181] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 10/23/2020] [Accepted: 12/15/2020] [Indexed: 11/16/2022]
Abstract
Although frequently associated with tumor progression, inflammatory cytokines initially restrain transformation by inducing senescence, a key tumor-suppressive barrier. Here, we demonstrate that the inflammatory cytokine, oncostatin M, activates a mesenchymal/stem cell (SC) program that engages cytokine-induced senescence (CIS) in normal human epithelial cells. CIS is driven by Snail induction and requires cooperation between STAT3 and the TGFβ effector, SMAD3. Importantly, as cells escape CIS, they retain the mesenchymal/SC program and are thereby bestowed with a set of cancer SC (CSC) traits. Of therapeutic importance, cells that escape CIS can be induced back into senescence by CDK4/6 inhibition, confirming that the mechanisms allowing cells to escape senescence are targetable and reversible. Moreover, by combining CDK4/6 inhibition with a senolytic therapy, mesenchymal/CSCs can be efficiently killed. Our studies provide insight into how the CIS barriers that prevent tumorigenesis can be exploited as potential therapies for highly aggressive cancers. IMPLICATIONS: These studies reveal how a normal cell's arduous escape from senescence can bestow aggressive features early in the transformation process, and how this persistent mesenchymal/SC program can create a novel potential targetability following tumor development.
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Affiliation(s)
- Benjamin L Bryson
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, Ohio.,Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio
| | - Ilaria Tamagno
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, Ohio.,Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio
| | - Sarah E Taylor
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, Ohio
| | - Neetha Parameswaran
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, Ohio
| | - Noah M Chernosky
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, Ohio.,Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio
| | - Nikhila Balasubramaniam
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, Ohio
| | - Mark W Jackson
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, Ohio. .,Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, Ohio
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Global Detection of Proteins by Label-Based Antibody Array. Methods Mol Biol 2020. [PMID: 33237407 DOI: 10.1007/978-1-0716-1064-0_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
Because of narrow availability of antibody pairs and potential cross-reactivity between antibodies, the development of sandwich-based antibody arrays which need a pair of antibodies for each target has been restricted to higher density resulting in limited proteomic breadth of detection. Label-based array is one way to overcome this obstacle by directly labeling all targets in samples with fluorescent dyes such as Cy3 and Cy5. The labeled samples are then applied on the antibody array chip composed of capture antibodies. In this chapter, we will introduce this technology including array production and sample detection assay.
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Anderson JR, Phelan MM, Foddy L, Clegg PD, Peffers MJ. Ex Vivo Equine Cartilage Explant Osteoarthritis Model: A Metabolomics and Proteomics Study. J Proteome Res 2020; 19:3652-3667. [PMID: 32701294 PMCID: PMC7476031 DOI: 10.1021/acs.jproteome.0c00143] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
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Osteoarthritis is an age-related
degenerative musculoskeletal disease
characterized by loss of articular cartilage, synovitis, and subchondral
bone sclerosis. Osteoarthritis pathogenesis is yet to be fully elucidated
with no osteoarthritis-specific biomarkers in clinical use. Ex vivo equine cartilage explants (n =
5) were incubated in tumor necrosis factor-α (TNF-α)/interleukin-1β
(IL-1β)-supplemented culture media for 8 days, with the media
removed and replaced at 2, 5, and 8 days. Acetonitrile metabolite
extractions of 8 day cartilage explants and media samples at all time
points underwent one-dimensional (1D) 1H nuclear magnetic
resonance metabolomic analysis, with media samples also undergoing
mass spectrometry proteomic analysis. Within the cartilage, glucose
and lysine were elevated following TNF-α/IL-1β treatment,
while adenosine, alanine, betaine, creatine, myo-inositol, and uridine
decreased. Within the culture media, 4, 4, and 6 differentially abundant
metabolites and 154, 138, and 72 differentially abundant proteins
were identified at 1–2, 3–5, and 6–8 days, respectively,
including reduced alanine and increased isoleucine, enolase 1, vimentin,
and lamin A/C following treatment. Nine potential novel osteoarthritis
neopeptides were elevated in the treated media. Implicated pathways
were dominated by those involved in cellular movement. Our innovative
study has provided insightful information on early osteoarthritis
pathogenesis, enabling potential translation for clinical markers
and possible new therapeutic targets.
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Affiliation(s)
- James R Anderson
- Musculoskeletal and Ageing Science, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool L7 8TX, U.K
| | - Marie M Phelan
- NMR Metabolomics Facility, Technology Directorate & Department of Biochemistry & Systems Biology, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool L69 7ZB, U.K
| | - Laura Foddy
- School of Veterinary Science, Institute of Infection, Veterinary & Ecological Sciences, University of Liverpool, Liverpool L69 3GH, U.K
| | - Peter D Clegg
- Musculoskeletal and Ageing Science, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool L7 8TX, U.K
| | - Mandy J Peffers
- Musculoskeletal and Ageing Science, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool L7 8TX, U.K
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9
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Haidar O, O'Neill N, Staunton CA, Bavan S, O'Brien F, Zouggari S, Sharif U, Mobasheri A, Kumagai K, Barrett-Jolley R. Pro-inflammatory Cytokines Drive Deregulation of Potassium Channel Expression in Primary Synovial Fibroblasts. Front Physiol 2020; 11:226. [PMID: 32265733 PMCID: PMC7105747 DOI: 10.3389/fphys.2020.00226] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 02/27/2020] [Indexed: 01/15/2023] Open
Abstract
The synovium secretes synovial fluid, but is also richly innervated with nociceptors and acts as a gateway between avascular joint tissues and the circulatory system. Resident fibroblast-like synoviocytes' (FLS) calcium-activated potassium channels (K Ca) change in activity in arthritis models and this correlates with FLS activation. Objective To investigate this activation in an in vitro model of inflammatory arthritis; 72 h treatment with cytokines TNFα and IL1β. Methods FLS cells were isolated from rat synovial membranes. We analyzed global changes in FLS mRNA by RNA-sequencing, then focused on FLS ion channel genes and the corresponding FLS electrophysiological phenotype and finally modeling data with ingenuity pathway analysis (IPA) and MATLAB. Results IPA showed significant activation of inflammatory, osteoarthritic and calcium signaling canonical pathways by cytokines, and we identified ∼200 channel gene transcripts. The large K Ca (BK) channel consists of the pore forming Kcnma1 together with β-subunits. Following cytokine treatment, a significant increase in Kcnma1 RNA abundance was detected by qPCR and changes in several ion channels were detected by RNA-sequencing, including a loss of BK channel β-subunit expression Kcnmb1/2 and an increase in Kcnmb3. In electrophysiological experiments, there was a decrease in over-all current density at 20 mV without change in chord conductance at this potential. Conclusion TNFα and IL1β treatment of FLS in vitro recapitulated several common features of inflammatory arthritis at the transcriptomic level, including increase in Kcnma1 and Kcnmb3 gene expression.
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Affiliation(s)
- Omar Haidar
- Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, United Kingdom
| | - Nathanael O'Neill
- Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, United Kingdom
| | - Caroline A Staunton
- Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, United Kingdom
| | - Selvan Bavan
- Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, United Kingdom
| | - Fiona O'Brien
- Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, United Kingdom
| | - Sarah Zouggari
- Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, United Kingdom
| | - Umar Sharif
- Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, United Kingdom
| | - Ali Mobasheri
- Research Unit of Medical Imaging, Physics and Technology, University of Oulu, Oulu, Finland.,Department of Regenerative Medicine, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania.,Department of Orthopedics and Department of Rheumatology & Clinical Immunology, UMC Utrecht, Utrecht, Netherlands.,Versus Arthritis Centre for Sport, Exercise and Osteoarthritis Research, Queen's Medical Centre, Nottingham, United Kingdom
| | - Kosuke Kumagai
- Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, United Kingdom.,Department of Orthopaedic Surgery, Shiga University of Medical Science, Shiga, Japan
| | - Richard Barrett-Jolley
- Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, United Kingdom.,Versus Arthritis Centre for Sport, Exercise and Osteoarthritis Research, Queen's Medical Centre, Nottingham, United Kingdom
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10
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Saddala MS, Lennikov A, Huang H. Placental growth factor regulates the pentose phosphate pathway and antioxidant defense systems in human retinal endothelial cells. J Proteomics 2020; 217:103682. [PMID: 32058040 DOI: 10.1016/j.jprot.2020.103682] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Accepted: 02/08/2020] [Indexed: 01/16/2023]
Abstract
The molecular mechanisms whereby placental growth factor (PlGF) mediates its effects in nonproliferative diabetic retinopathy (DR) are unknown. To better understand the role of PlGF in DR, we used tandem mass tags (TMT)-labeled quantitative proteomics to human retinal endothelial cells (HRECs), treated anti-PlGF antibody, and PBS as a control. Functional annotation and pathway enrichments were performed, which suggested that the differentially expressed proteins (DEPs) were involved in key metabolic processes, protein binding, and membrane, pentose phosphate pathway (PPP) and adherens junction. We conducted integrated gene profiles of our previously published transcriptomic data to the TMT-labeled proteomics data. The results showed the sixty genes were found to be changed at the proteome level. The functional annotation conducted for the sixty proteins suggested that 58.3% of proteins were involved in PPP, 25% of proteins were in interleukin-12 singling and 16.7% of proteins were involved in glycolysis and gluconeogenesis pathway. Mass spectrometry results were validated by transendothelial electrical resistance measurement by an electrical cell-impedance sensing (ECIS) and western blot analysis of VE-cadherin, G6PD. These findings suggest that the PPP proteins and antioxidants may act as a downstream target of PlGF and may play a decisive role in HREC biological functions in DR. SIGNIFICANCE: PlGF (Placental growth factor) is known to play a pivotal role in pathological angiogenesis and inflammation by stimulating endothelial cell migration and by recruiting pericytes and inflammatory cells such as microglia and macrophages. Despite the well-defined pathophysiological roles of PlGF, the underlying molecular and cellular mechanisms are not completely understood, especially the exact relationships between biochemical events and molecular pathways regulated by PlGF, whose inhibition exhibits a protective role in DR. This study provides new insights into protein expression patterns and enables the identification of many attractive candidates for investigation of PPP pathway role in the activation of the antioxidant defense system in DR. Our findings suggest that the PPP proteins and antioxidants (PRDX6, HMOX1, NQO1 and YES1) may act as downstream targets of PlGF and may play a decisive role in HREC biological functions in DR.
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Affiliation(s)
| | - Anton Lennikov
- Mason Eye Institute, University of Missouri, Columbia, MO, United States
| | - Hu Huang
- Mason Eye Institute, University of Missouri, Columbia, MO, United States.
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11
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Huppertz B. An updated view on the origin and use of angiogenic biomarkers for preeclampsia. Expert Rev Mol Diagn 2018; 18:1053-1061. [PMID: 30413130 DOI: 10.1080/14737159.2018.1546579] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Introduction: The last decade has seen massive efforts towards the identification and the potential use of predictive biomarkers for the pregnancy pathology preeclampsia. The angiogenic factors sFlt-1 and placental growth factor (PGF) have been in focus and have been massively supported. Areas covered: This review describes preeclampsia and intra-uterine growth restriction (IUGR), focusing on sFlt-1 and PGF, their sources during and outside pregnancy and the application of these markers in diseases outside pregnancy. Finally, the specificity of the angiogenic markers for preeclampsia is discussed. Expert commentary: The admixture of the two independent syndromes preeclampsia and IUGR has not helped in identifying the etiologies of either. Rather, it has made the search for new markers and pathways much more complicated as has the constriction on the angiogenic markers. The current markers sFlt-1 and PGF have a clear value once an adverse outcome is diagnosed but are not specific for preeclampsia. Also, they are mostly derived from the maternal vascular system rather than the placenta and are already in use as markers outside pregnancy. A new holistic approach using disease maps and interoperable workflows based on topic-related big data will help in broadening our understanding of the etiology of preeclampsia and hence, develop new markers and therapies.
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Affiliation(s)
- Berthold Huppertz
- a Division of Cell Biology, Histology and Embryology , Gottfried Schatz Research Center, Medical University of Graz , Graz , Austria
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12
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Saddala MS, Lennikov A, Grab DJ, Liu GS, Tang S, Huang H. Proteomics reveals ablation of PlGF increases antioxidant and neuroprotective proteins in the diabetic mouse retina. Sci Rep 2018; 8:16728. [PMID: 30425286 PMCID: PMC6233167 DOI: 10.1038/s41598-018-34955-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 10/26/2018] [Indexed: 12/17/2022] Open
Abstract
Placental growth factor (PlGF or PGF), a member of the vascular endothelial growth factor (VEGF) sub-family, plays a crucial role in pathological angiogenesis and inflammation. However, the underlying molecular mechanisms that PlGF mediates regarding the complications of non-proliferative diabetic retinopathy (DR) remain elusive. Using an LC-MS/MS-based label-free quantification proteomic approach we characterized the alterations in protein expression caused by PlGF ablation in the retinas obtained from C57BL6, Akita, PlGF-/- and Akita.PlGF-/- mice. After extraction and enzymatic digestion with Trypsin/LysC, the retinal proteins were analyzed by Q-Exactive hybrid Quadrupole-Orbitrap mass spectrometry. Differentially expressed proteins (DEPs) were identified in four comparisons based on Z-score normalization and reproducibility by Pearson's correlation coefficient. The gene ontology (GO), functional pathways, and protein-protein network interaction analysis suggested that several proteins involved in insulin resistance pathways (Gnb1, Gnb2, Gnb4, Gnai2, Gnao1, Snap2, and Gngt1) were significantly down-regulated in PlGF ablated Akita diabetic mice (Akita.PlGF-/- vs. Akita) but up-regulated in Akita vs. C57 and PlGF-/- vs. C57 conditions. Two proteins involved in the antioxidant activity and neural protection pathways, Prdx6 and Map2 respectively, were up-regulated in the Akita.PlGF-/- vs. Akita condition. Overall, we predict that down-regulation of proteins essential for insulin resistance, together with the up-regulation of antioxidant and neuroprotection proteins highlight and epitomize the potential mechanisms important for future anti-PlGF therapies in the treatment of DR.
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Affiliation(s)
- Madhu Sudhana Saddala
- Wilmer Eye Institute, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Anton Lennikov
- Wilmer Eye Institute, Johns Hopkins University, Baltimore, Maryland, United States of America
- School of Biomedicine, Far Eastern Federal University, Vladivostok, Russia
| | - Dennis J Grab
- The Department of Pathology, Uniformed Services University of the Health Sciences, Bethesda, MD, United States of America
- The Department of Pathology, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Guei-Sheung Liu
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia
| | - Shibo Tang
- Aier School of Ophthalmology, Central South University, Changsha, Hunan, China
- Aier Eye Institute, Changsha, Hunan, China
| | - Hu Huang
- Wilmer Eye Institute, Johns Hopkins University, Baltimore, Maryland, United States of America.
- Aier School of Ophthalmology, Central South University, Changsha, Hunan, China.
- Aier Eye Institute, Changsha, Hunan, China.
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13
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Kisand K, Tamm AE, Lintrop M, Tamm AO. New insights into the natural course of knee osteoarthritis: early regulation of cytokines and growth factors, with emphasis on sex-dependent angiogenesis and tissue remodeling. A pilot study. Osteoarthritis Cartilage 2018; 26:1045-1054. [PMID: 29782915 DOI: 10.1016/j.joca.2018.05.009] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 05/04/2018] [Accepted: 05/05/2018] [Indexed: 02/02/2023]
Abstract
OBJECTIVE This study was conducted to identify cytokine profiles associated with radiographic phenotypes of knee osteoarthritis (rKOA) with a focus on early stage of the disease. METHODS The pilot population study involved 60 middle-aged patients (mean age 50 ± 7.3y.). Standardized weight-bearing anteroposterior and axial radiographs were used to assess rKOA severity in tibiofemoral (TFJ) of patellofemoral joint (PFJ) by grading system (grades 0-3). Luminex (xMAP®) technology was used to simultaneously assess 60 biomarkers (BMs). RESULTS Several pathways of angiogenic (CXCL10/IP-10, FGF1/2, PDGF-AA/BB, ANG1, RANTES), tissue remodeling/fibrosis (MMP1/3, TIMP2/3/4, TGFβ), and fat tissue (leptin) BMs associated with rKOA severity already in very early phase (grade 1). We identified several sets of cytokines as key markers of early knee osteoarthritis (KOA) predicting radiographic features in logistic-regression models (AUC = 0.80-0.97). Marked sex-specificity of rKOA course was detected: upregulation of angiogenesis dominated in females, whereas the activation of tissue remodeling was dominant in males. Several of these shifts, e.g., decrease of CXCL10/IP-10, took place only in grade 1 KOA and disappeared or reversed in later stages. OA of different knee-joint compartments has distinct profiles of cytokines. A broad list of BMs (TIMP2/3/4, MMP1/3, TGFβ1/2, vWF-A2, sE-selectin and leptin) associated with OA in the PFJ. CONCLUSION Our results demonstrate that substantial and time-limited shifts in the angiogenic and TIMP/MMP systems occur in the early stage of KOA. Our study findings highlight the sex-, grade- and compartment-dependent shifts in above processes. The data may contribute to the individualized prevention of KOA in the future.
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Affiliation(s)
- K Kisand
- Department of Immunology, Institute of Biomedicine and Translational Medicine, University of Tartu, Tartu, Estonia; Department of Internal Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia.
| | - A E Tamm
- Department of Sports Medicine and Rehabilitation, University of Tartu, Tartu, Estonia.
| | - M Lintrop
- Department of Radiology, University of Tartu, Tartu, Estonia.
| | - A O Tamm
- Department of Internal Medicine, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia.
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14
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Žigon-Branc S, Barlič A, Knežević M, Jeras M, Vunjak-Novakovic G. Testing the potency of anti-TNF-α and anti-IL-1β drugs using spheroid cultures of human osteoarthritic chondrocytes and donor-matched chondrogenically differentiated mesenchymal stem cells. Biotechnol Prog 2018; 34:1045-1058. [PMID: 29536646 PMCID: PMC6138577 DOI: 10.1002/btpr.2629] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Revised: 03/07/2018] [Indexed: 12/31/2022]
Abstract
Inflammation plays a major role in progression of rheumatoid arthritis, a disease treated with antagonists of tumor necrosis factor-alpha (TNF-α) and interleukin 1β (IL-1β). New in vitro testing systems are needed to evaluate efficacies of new anti-inflammatory biological drugs, ideally in a patient-specific manner. To address this need, we studied microspheroids containing 10,000 human osteoarthritic primary chondrocytes (OACs) or chondrogenically differentiated mesenchymal stem cells (MSCs), obtained from three donors. Hypothesizing that this system can recapitulate clinically observed effects of anti-inflammatory drugs, spheroids were exposed to TNF-α, IL-1β, or to supernatant containing secretome from activated macrophages (MCM). The anti-inflammatory efficacies of anti-TNF-α biologicals adalimumab, infliximab, and etanercept, and the anti-IL-1β agent anakinra were assessed in short-term microspheroid and long-term macrospheroid cultures (100,000 OACs). While gene and protein expressions were evaluated in microspheroids, diameters, amounts of DNA, glycosaminoglycans, and hydroxiproline were measured in macrospheroids. The tested drugs significantly decreased the inflammation induced by TNF-α or IL-1β. The differences in potency of anti-TNF-α biologicals at 24 h and 3 weeks after their addition to inflamed spheroids were comparable, showing high predictability of short-term cultures. Moreover, the data obtained with microspheroids grown from OACs and chondrogenically differentiated MSCs were comparable, suggesting that MSCs could be used for this type of in vitro testing. We propose that in vitro gene expression measured after the first 24 h in cultures of chondrogenically differentiated MSCs can be used to determine the functionality of anti-TNF-α drugs in personalized and preclinical studies. © 2018 American Institute of Chemical Engineers Biotechnol. Prog., 34:1045-1058, 2018.
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Affiliation(s)
- Sara Žigon-Branc
- Department of Biomedical Engineering, Columbia University, New York NY, USA
- Educell Cell Therapy Service Ltd, Trzin, Slovenia
| | | | | | - Matjaž Jeras
- Department of Clinical Biochemistry, Faculty of Pharmacy, University of Ljubljana, Slovenia
- Celica Biomedical Ltd., Ljubljana, Slovenia
| | - Gordana Vunjak-Novakovic
- Department of Biomedical Engineering, Columbia University, New York NY, USA
- Department of Medicine, Columbia University, New York NY, USA
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Furman BD, Kent CL, Huebner JL, Kraus VB, McNulty AL, Guilak F, Olson SA. CXCL10 is upregulated in synovium and cartilage following articular fracture. J Orthop Res 2018; 36:1220-1227. [PMID: 28906016 PMCID: PMC5851826 DOI: 10.1002/jor.23735] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 09/06/2017] [Indexed: 02/04/2023]
Abstract
The objective of this study was to investigate the expression of the chemokine CXCL10 and its role in joint tissues following articular fracture. We hypothesized that CXCL10 is upregulated following articular fracture and contributes to cartilage degradation associated with post-traumatic arthritis (PTA). To evaluate CXCL10 expression following articular fracture, gene expression was quantified in synovial tissue from knee joints of C57BL/6 mice that develop PTA following articular fracture, and MRL/MpJ mice that are protected from PTA. CXCL10 protein expression was assessed in human cartilage in normal, osteoarthritic (OA), and post-traumatic tissue using immunohistochemistry. The effects of exogenous CXCL10, alone and in combination with IL-1, on porcine cartilage explants were assessed by quantifying the release of catabolic mediators. Synovial tissue gene expression of CXCL10 was upregulated by joint trauma, peaking one day in C57BL/6 mice (25-fold) versus 3 days post-fracture in MRL/MpJ mice (15-fold). CXCL10 protein in articular cartilage was most highly expressed following trauma compared with normal and OA tissue. In a dose dependent manner, exogenous CXCL10 significantly reduced total matrix metalloproteinase (MMP) and aggrecanase activity of culture media from cartilage explants. CXCL10 also trended toward a reduction in IL-1α-stimulated total MMP activity (p = 0.09) and S-GAG (p = 0.09), but not NO release. In conclusion, CXCL10 was upregulated in synovium and chondrocytes following trauma. However, exogenous CXCL10 did not induce a catabolic response in cartilage. CXCL10 may play a role in modulating the chondrocyte response to inflammatory stimuli associated with joint injury and the progression of PTA. © 2017 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 36:1220-1227, 2018.
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Affiliation(s)
- Bridgette D. Furman
- Department of Orthopaedic Surgery, Duke University Medical Center, Durham, NC 27710
| | - Collin L. Kent
- Department of Orthopaedic Surgery, Duke University Medical Center, Durham, NC 27710
| | | | | | - Amy L. McNulty
- Department of Orthopaedic Surgery, Duke University Medical Center, Durham, NC 27710
| | - Farshid Guilak
- Department of Orthopaedic Surgery, Washington University in St. Louis, St. Louis, MO 63110,Shriners’ Hospital for Children-St. Louis, St. Louis, MO 63110
| | - Steven A. Olson
- Department of Orthopaedic Surgery, Duke University Medical Center, Durham, NC 27710
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Žigon-Branc S, Jeras M, Blejec A, Barlič A. Applicability of human osteoarthritic chondrocytes for in vitro efficacy testing of anti-TNFα drugs. Biologicals 2016; 45:96-101. [PMID: 27773423 DOI: 10.1016/j.biologicals.2016.09.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 09/16/2016] [Accepted: 09/29/2016] [Indexed: 12/31/2022] Open
Abstract
In vitro cell-based models are important tools for assessing efficacies of new leads in early phases of drug development. Human osteoarthritic chondrocytes (OACs), obtained from biomedical waste material, represent a valuable, relatively accessible cellular source that could be used for this purpose. By employing reverse transcription-polymerase chain reaction (qRT-PCR) we compared gene expression profiles of key anabolic, catabolic and inflammatory genes of freshly isolated vs. monolayer cultured OACs (passages P0-P2) and non-stimulated vs. tumor necrosis factor alpha (TNF-α) stimulated P2 OACs. After expansion of OACs in monolayer cultures, the expression of almost all analyzed genes significantly decreased. The subsequent addition of TNF-α to OACs at P2 significantly increased expressions of all catabolic and inflammatory genes, leaving the anabolic profile almost unchanged. TNF-α-treated OACs were later utilized for efficacy testing of anti-TNF-α drugs infliximab and etanercept and both significantly reduced the expressions of all catabolic and inflammatory genes tested.
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Affiliation(s)
- Sara Žigon-Branc
- Educell Cell Therapy Service Ltd., Prevale 9, 1236 Trzin, Slovenia.
| | - Matjaž Jeras
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, 1000 Ljubljana, Slovenia; Celica Biomedical Ltd., Tehnološki Park 24, 1000 Ljubljana, Slovenia.
| | - Andrej Blejec
- National Institute of Biology, Večna pot 101, 1000 Ljubljana, Slovenia.
| | - Ariana Barlič
- Educell Cell Therapy Service Ltd., Prevale 9, 1236 Trzin, Slovenia.
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Comblain F, Dubuc JE, Lambert C, Sanchez C, Lesponne I, Serisier S, Henrotin Y. Identification of Targets of a New Nutritional Mixture for Osteoarthritis Management Composed by Curcuminoids Extract, Hydrolyzed Collagen and Green Tea Extract. PLoS One 2016; 11:e0156902. [PMID: 27275599 PMCID: PMC4898725 DOI: 10.1371/journal.pone.0156902] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 05/20/2016] [Indexed: 12/29/2022] Open
Abstract
Objective We have previously demonstrated that a mixture of curcuminoids extract, hydrolyzed collagen and green tea extract (COT) inhibited inflammatory and catabolic mediator’s synthesis by osteoarthritic human chondrocytes. The objective of this study was to identify new targets of COT using genomic and proteomic approaches. Design Cartilage specimens were obtained from 12 patients with knee osteoarthritis. Primary human chondrocytes were cultured in monolayer until confluence and then incubated for 24 or 48 hours in the absence or in the presence of human interleukin(IL)-1β (10-11M) and with or without COT, each compound at the concentration of 4 μg/ml. Microarray gene expression profiling between control, COT, IL-1β and COT IL-1β conditions was performed. Immunoassays were used to confirm the effect of COT at the protein level. Results More than 4000 genes were differentially expressed between conditions. The key regulated pathways were related to inflammation, cartilage metabolism and angiogenesis. The IL-1β stimulated chemokine ligand 6, matrix metalloproteinase-13, bone morphogenetic protein-2 and stanniocalcin1 gene expressions and protein productions were down-regulated by COT. COT significantly decreased stanniocalcin1 production in basal condition. Serpin E1 gene expression and protein production were down-regulated by IL-1β. COT reversed the inhibitory effect of IL-1β. Serpin E1 gene expression was up-regulated by COT in control condition. Conclusion The COT mixture has beneficial effect on osteoarthritis physiopathology by regulating the synthesis of key catabolic, inflammatory and angiogenesis factors. These findings give a scientific rationale for the use of these natural ingredients in the management of osteoarthritis.
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Affiliation(s)
- Fanny Comblain
- Bone and Cartilage Research Unit, Arthropôle Liège, University of Liège, CHU Sart-Tilman, Liège, Belgium
| | - Jean-Emile Dubuc
- Orthopedic Department, Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - Cécile Lambert
- Bone and Cartilage Research Unit, Arthropôle Liège, University of Liège, CHU Sart-Tilman, Liège, Belgium
| | - Christelle Sanchez
- Bone and Cartilage Research Unit, Arthropôle Liège, University of Liège, CHU Sart-Tilman, Liège, Belgium
| | | | | | - Yves Henrotin
- Bone and Cartilage Research Unit, Arthropôle Liège, University of Liège, CHU Sart-Tilman, Liège, Belgium
- Physical Therapy and Rehabilitation Department, Princess Paola Hospital, Vivalia, Marche-en-Famenne, Belgium
- * E-mail:
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Aging-related inflammation in osteoarthritis. Osteoarthritis Cartilage 2015; 23:1966-71. [PMID: 26521742 PMCID: PMC4630808 DOI: 10.1016/j.joca.2015.01.008] [Citation(s) in RCA: 336] [Impact Index Per Article: 37.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Revised: 01/05/2015] [Accepted: 01/09/2015] [Indexed: 02/07/2023]
Abstract
It is well accepted that aging is an important contributing factor to the development of osteoarthritis (OA). The mechanisms responsible appear to be multifactorial and may include an age-related pro-inflammatory state that has been termed "inflamm-aging." Age-related inflammation can be both systemic and local. Systemic inflammation can be promoted by aging changes in adipose tissue that result in increased production of cytokines such as interleukin (IL)-6 and tumor necrosis factor-α (TNFα). Numerous studies have shown an age-related increase in blood levels of IL-6 that has been associated with decreased physical function and frailty. Importantly, higher levels of IL-6 have been associated with an increased risk of knee OA progression. However, knockout of IL-6 in male mice resulted in worse age-related OA rather than less OA. Joint tissue cells, including chondrocytes and meniscal cells, as well as the neighboring infrapatellar fat in the knee joint, can be a local source of inflammatory mediators that increase with age and contribute to OA. An increased production of pro-inflammatory mediators that include cytokines and chemokines, as well as matrix-degrading enzymes important in joint tissue destruction, can be the result of cell senescence and the development of the senescence-associated secretory phenotype (SASP). Further studies are needed to better understand the basis for inflamm-aging and its role in OA with the hope that this work will lead to new interventions targeting inflammation to reduce not only joint tissue destruction but also pain and disability in older adults with OA.
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Ruiz-Romero C, Fernández-Puente P, Calamia V, Blanco FJ. Lessons from the proteomic study of osteoarthritis. Expert Rev Proteomics 2015; 12:433-43. [PMID: 26152498 DOI: 10.1586/14789450.2015.1065182] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Osteoarthritis is the most common rheumatic pathology and one of the leading causes of disability worldwide. It is a very complex disease whose etiopathogenesis is not fully understood. Furthermore, there are serious limitations for its management, since it lacks specific and sensitive biomarkers for early diagnosis, prognosis and therapeutic monitoring. Proteomic approaches performed in the last few decades have contributed to the knowledge on the molecular mechanisms that participate in this pathology and they have also led to interesting panels of putative biomarker candidates. In the next few years, further efforts should be made for translating these findings into the clinical routines. It is expected that targeted proteomics strategies will be highly valuable for the verification and qualification of biomarkers of osteoarthritis.
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Affiliation(s)
- Cristina Ruiz-Romero
- Rheumatology Division, ProteoRed/ISCIII Proteomics Group, INIBIC - Hospital Universitario de A Coruña, 15006 A Coruña, Spain
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Barlič A, Žigon S, Blejec A, Kregar Velikonja N. Gene expression of cultured human chondrocytes as a model for assessing neutralization efficacy of soluble TNFα by TNFα antagonists. Biologicals 2015; 43:171-80. [PMID: 25846605 DOI: 10.1016/j.biologicals.2015.03.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Revised: 03/02/2015] [Accepted: 03/03/2015] [Indexed: 12/11/2022] Open
Abstract
Tumor necrosis factor-alpha (TNFα) antagonists are efficacious in the treatment of various immune-mediated inflammatory diseases. Because of rapidly growing demand for developing new or biosimilar versions of these biologicals, the need to create in vitro testing models that best represent physiological conditions is increasing. Primary human chondrocytes were used for potency evaluation and comparison between the molecular effects of anti-TNFα biologicals. Infliximab and etanercept were chosen to assess the suitability of chondrocyte cell culture for determination of anti-TNFα neutralization efficacy employing quantitative reverse transcription-polymerase chain reaction (qRT-PCR) technology. Use of both anti-TNFα biologics resulted in decrease of TNFα-stimulated expression of various matrix metalloproteinases, interleukins and other inflammation-related genes in our cell model. Significant differences in inhibition efficacy of etanercept and infliximab were observed, which were confirmed also on protein level. To evaluate the potency of anti-TNFα biologicals, a selection of TNFα-responsive target genes was made from the gene array data. The selected genes were employed in development of statistical model, which enables comparability of anti-TNFα biologicals. The presented analytical approach is suitable for assessment of the neutralization efficacy of various anti-TNFα biologicals. As such, it can be used for additional comprehensive characterization and comparability of TNF antagonists in preclinical drug testing.
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Affiliation(s)
- Ariana Barlič
- Educell Ltd., Prevale 9, 1236 Trzin, Slovenia; IN.Medica, Levičnikova 34, 8310 Šentjernej, Slovenia
| | - Sara Žigon
- Educell Ltd., Prevale 9, 1236 Trzin, Slovenia
| | - Andrej Blejec
- National Institute of Biology, Večna pot 101, 1000 Ljubljana, Slovenia
| | - Nevenka Kregar Velikonja
- Educell Ltd., Prevale 9, 1236 Trzin, Slovenia; IN.Medica, Levičnikova 34, 8310 Šentjernej, Slovenia; Faculty of Health Sciences Novo Mesto, Na Loko 2, 8000 Novo Mesto, Slovenia.
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Phenotypic characterization of Mycoplasma synoviae induced changes in the metabolic and sensitivity profile of in vitro infected chicken chondrocytes. BIOMED RESEARCH INTERNATIONAL 2014; 2014:613730. [PMID: 25243158 PMCID: PMC4160629 DOI: 10.1155/2014/613730] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Revised: 08/09/2014] [Accepted: 08/10/2014] [Indexed: 11/18/2022]
Abstract
In infectious synovitis caused by Mycoplasma synoviae chicken chondrocytes (CCH) may come into direct contact with these bacteria that are also capable of invading CCH in vitro. In this study, phenotype microarrays were used to evaluate the influence of Mycoplasma synoviae on the global metabolic activity of CCH. Therefore, CCH were cultured in the presence of 504 individual compounds, spotted in wells of 11 phenotype microarrays for eukaryotic cells, and exposed to Mycoplasma synoviae membranes or viable Mycoplasma synoviae. Metabolic activity and sensitivity of normal cells versus infected cells were evaluated. Metabolic profiles of CCH treated with viable Mycoplasma synoviae or its membranes were significantly different from those of CCH alone. CCH treated with Mycoplasma synoviae membranes were able to use 48 carbon/nitrogen sources not used by CCH alone. Treatment also influenced ion uptake in CCH and intensified the sensitivity to 13 hormones, 5 immune mediators, and 29 cytotoxic chemicals. CCH were even more sensitive to hormones/immune mediators when exposed to viable Mycoplasma synoviae. Our results indicate that exposure to Mycoplasma synoviae or its membranes induces a wide range of metabolic and sensitivity modifications in CCH that can contribute to pathological processes in the development of infectious synovitis.
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Human osteoarthritic cartilage shows reduced in vivo expression of IL-4, a chondroprotective cytokine that differentially modulates IL-1β-stimulated production of chemokines and matrix-degrading enzymes in vitro. PLoS One 2014; 9:e96925. [PMID: 24819779 PMCID: PMC4018406 DOI: 10.1371/journal.pone.0096925] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Accepted: 04/14/2014] [Indexed: 12/24/2022] Open
Abstract
Background In osteoarthritis (OA), an inflammatory environment is responsible for the imbalance between the anabolic and catabolic activity of chondrocytes and, thus, for articular cartilage derangement. This study was aimed at providing further insight into the impairment of the anabolic cytokine IL-4 and its receptors in human OA cartilage, as well as the potential ability of IL-4 to antagonize the catabolic phenotype induced by IL-1β. Methodology/Principal Findings The in vivo expression of IL-4 and IL-4 receptor subunits (IL-4R, IL-2Rγ, IL-13Rα1) was investigated on full thickness OA or normal knee cartilage. IL-4 expression was found to be significantly lower in OA, both in terms of the percentage of positive cells and the amount of signal per cell. IL-4 receptor type I and II were mostly expressed in mid-deep cartilage layers. No significant difference for each IL-4 receptor subunit was noted. IL-4 anti-inflammatory and anti-catabolic activity was assessed in vitro in the presence of IL-1β and/or IL-4 for 24 hours using differentiated high density primary OA chondrocyte also exhibiting the three IL-4 R subunits found in vivo. Chemokines, extracellular matrix degrading enzymes and their inhibitors were evaluated at mRNA (real time PCR) and protein (ELISA or western blot) levels. IL-4 did not affect IL-1β-induced mRNA expression of GRO-α/CXCL1, IL-8/CXCL8, ADAMTS-5, TIMP-1 or TIMP-3. Conversely, IL-4 significantly inhibited RANTES/CCL5, MIP-1α/CCL3, MIP-1β/CCL4, MMP-13 and ADAMTS-4. These results were confirmed at protein level for RANTES/CCL5 and MMP-13. Conclusions/Significance Our results indicate for the first time that OA cartilage has a significantly lower expression of IL-4. Furthermore, we found differences in the spectrum of biological effects of IL-4. The findings that IL-4 has the ability to hamper the IL-1β-induced release of both MMP-13 and CCL5/RANTES, both markers of OA chondrocytes, strongly indicates IL-4 as a pivotal anabolic cytokine in cartilage whose impairment impacts on OA pathogenesis.
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Borrebaeck CAK, Wingren C. High-throughput proteomics using antibody microarrays: an update. Expert Rev Mol Diagn 2014; 7:673-86. [PMID: 17892372 DOI: 10.1586/14737159.7.5.673] [Citation(s) in RCA: 102] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Antibody-based microarrays are a rapidly emerging technology that has advanced from the first proof-of-concept studies to demanding serum protein profiling applications during recent years, displaying great promise within disease proteomics. Miniaturized micro- and nanoarrays can be fabricated with an almost infinite number of antibodies carrying the desired specificities. While consuming only minute amounts of reagents, multiplexed and ultrasensitive assays can be performed targeting high- as well as low-abundance analytes in complex nonfractionated proteomes. The microarray images generated can then be converted into protein expression profiles or protein atlases, revealing a detailed composition of the sample. The technology will provide unique opportunities for fields such as disease diagnostics, biomarker discovery, patient stratification, predicting disease recurrence and drug target discovery. This review describes an update of high-throughput proteomics, using antibody-based microarrays, focusing on key technological advances and novel applications that have emerged over the last 3 years.
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Affiliation(s)
- Carl A K Borrebaeck
- Lund University, Department of Immunotechnology & CREATE Health, BMC D13, SE-221 84 Lund, Sweden.
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Iliopoulos D, Gkretsi V, Tsezou A. Proteomics of osteoarthritic chondrocytes and cartilage. Expert Rev Proteomics 2014; 7:749-60. [DOI: 10.1586/epr.10.27] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Takeda M, Takahashi M, Hara N, Matsumoto S. Glial cell line-derived neurotrophic factor modulates the excitability of nociceptive trigeminal ganglion neurons via a paracrine mechanism following inflammation. Brain Behav Immun 2013; 28:100-7. [PMID: 23131757 DOI: 10.1016/j.bbi.2012.10.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2012] [Accepted: 10/29/2012] [Indexed: 01/05/2023] Open
Abstract
Previous our report indicated that acute application of glial cell line-derived neurotrophic factor (GDNF) enhances the neuronal excitability of adult rat small-diameter trigeminal ganglion (TRG) neurons, which innervate the facial skin in the absence of neuropathic and inflammatory conditions. This study investigated whether under in vivo conditions, GDNF modulates the excitability of nociceptive Aδ-TRG neurons innervating the facial skin via a paracrine mechanism following inflammation. We used extracellular electrophysiological recording with multibarrel-electrodes in this study. Spontaneous Aδ-TRG neuronal activity was induced in control rats after iontophoretic application of GDNF into the trigeminal ganglia (TRGs). Noxious and non-noxious mechanical stimuli evoked Aδ-TRG neuronal firing rate were significantly increased by iontophoretic application of GDNF. The mean mechanical threshold of nociceptive TRG neurons was significantly decreased by GDNF application. The increased discharge frequency and decreased mechanical threshold induced by GDNF were antagonized by application of the protein tyrosine kinase inhibitor, K252b. The number of Aδ-TRG neurons with spontaneous firings and their firing rates in rats with inflammation induced by Complete Freund's Adjuvant were significantly higher than control rats. The firing rates of Aδ-TRG spontaneous neuronal activity were significantly decreased by iontophoretic application of K252b in inflamed rats. K252b also inhibited Aδ-TRG neuron activity evoked by mechanical stimulation in inflamed rats. These results suggest that in vivo GDNF enhances the excitability of nociceptive Aδ-TRG neurons via a paracrine mechanism within TRGs following inflammation. GDNF paracrine mechanism could be important as a therapeutic target for trigeminal inflammatory hyperalgesia.
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Affiliation(s)
- Mamoru Takeda
- Department of Physiology, School of Life Dentistry at Tokyo, Nippon Dental University, 1-9-20, Fujimi-cho, Chiyoda-ku, Tokyo 102-8159, Japan.
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Hogrefe C, Joos H, Maheswaran V, Dürselen L, Ignatius A, Brenner RE. Single impact cartilage trauma and TNF-α: interactive effects do not increase early cell death and indicate the need for bi-/multidirectional therapeutic approaches. Int J Mol Med 2012; 30:1225-32. [PMID: 22922824 DOI: 10.3892/ijmm.2012.1112] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2012] [Accepted: 07/30/2012] [Indexed: 11/06/2022] Open
Abstract
Blunt trauma of articular cartilage, often resulting from accidents or sports injuries, is associated with local inflammatory reactions and represents a major risk factor for development of post-traumatic osteoarthritis. TNF-α is increased in synovial fluid early after trauma, potentiates injury-induced proteoglycan degradation and may act proapoptotic under permissive conditions. We asked whether TNF-α also influences chondrocyte death, gene expression of catabolic and anabolic markers and the release of proinflammatory mediators in the early post-traumatic phase. Interactive effects of a defined single impact trauma (0.59 J) and TNF-α (100 ng/ml) on human early-stage osteoarthritic cartilage were investigated in vitro over 24 h. Exposure of traumatized cartilage to TNF-α did not increase chondrocyte death. IL-6-synthesis was augmented by trauma, TNF-α and combined treatment. The impact increased the release of PGE2 and PGD2 in the presence and absence of TNF-α to a similar extent while TNF-α alone showed no effect. In contrast, NOS2A-expression and nitric oxide (NO)-release were not affected by trauma but significantly increased by TNF-α. Expression of OPG and RANKL was not affected by TNF-α but modulated by trauma. TNF-α with and without trauma significantly induced MMP1 gene expression. These results indicate that TNF-α does not potentiate early cell death in early-stage osteoarthritic cartilage after blunt injury. However, trauma and TNF-α showed independent and interactive effects concerning prostaglandin and NO release. TNF-α probably contributes to cartilage degradation after trauma by an early induction of MMP1 gene expression. Our study confirms that an anti-TNF-α therapy may have inhibitory effects on catabolic and, partly, on inflammatory processes after a single impact trauma. As TNF-α does not contribute to the loss of chondrocytes in the initial post-traumatic phase, a combination with pharmaco-therapeutic strategies reducing early cell death could be reasonable.
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Affiliation(s)
- Cathrin Hogrefe
- Division for Biochemistry of Joint and Connective Tissue Diseases, Department of Orthopedics, University of Ulm, Ulm, Germany
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Dewerchin M, Carmeliet P. PlGF: a multitasking cytokine with disease-restricted activity. Cold Spring Harb Perspect Med 2012; 2:cshperspect.a011056. [PMID: 22908198 DOI: 10.1101/cshperspect.a011056] [Citation(s) in RCA: 161] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Placental growth factor (PlGF) is a member of the vascular endothelial growth factor (VEGF) family that also comprises VEGF-A (VEGF), VEGF-B, VEGF-C, and VEGF-D. Unlike VEGF, PlGF is dispensable for development and health but has diverse nonredundant roles in tissue ischemia, malignancy, inflammation, and multiple other diseases. Genetic and pharmacological gain-of-function and loss-of-function studies have identified molecular mechanisms of this multitasking cytokine and characterized the therapeutic potential of delivering or blocking PlGF for various disorders.
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Affiliation(s)
- Mieke Dewerchin
- Laboratory of Angiogenesis and Neurovascular Link, VIB Vesalius Research Center, K.U. Leuven, Leuven, Belgium
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De Falco S. The discovery of placenta growth factor and its biological activity. Exp Mol Med 2012; 44:1-9. [PMID: 22228176 DOI: 10.3858/emm.2012.44.1.025] [Citation(s) in RCA: 287] [Impact Index Per Article: 23.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Angiogenesis is a complex biological phenomenon crucial for a correct embryonic development and for post-natal growth. In adult life, it is a tightly regulated process confined to the uterus and ovary during the different phases of the menstrual cycle and to the heart and skeletal muscles after prolonged and sustained physical exercise. Conversly, angiogenesis is one of the major pathological changes associated with several complex diseases like cancer, atherosclerosis, arthritis, diabetic retinopathy and age-related macular degeneration. Among the several molecular players involved in angiogenesis, some members of VEGF family, VEGF-A, VEGF-B and placenta growth factor (PlGF), and the related receptors VEGF receptor 1 (VEGFR-1, also known as Flt-1) and VEGF receptor 2 (VEGFR-2, also known as Flk-1 in mice and KDR in human) have a decisive role. In this review, we describe the discovery and molecular characteristics of PlGF, and discuss the biological role of this growth factor in physiological and pathological conditions.
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Affiliation(s)
- Sandro De Falco
- Angiogenesis Laboratory and Stem Cell Fate Laboratory, Institute of Genetics and Biophysics 'Adriano Buzzati-Traverso', Napoli, Italy.
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Paquet J, Goebel JC, Delaunay C, Pinzano A, Grossin L, Cournil-Henrionnet C, Gillet P, Netter P, Jouzeau JY, Moulin D. Cytokines profiling by multiplex analysis in experimental arthritis: which pathophysiological relevance for articular versus systemic mediators? Arthritis Res Ther 2012; 14:R60. [PMID: 22414623 PMCID: PMC3446427 DOI: 10.1186/ar3774] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2011] [Revised: 11/23/2011] [Accepted: 03/13/2012] [Indexed: 12/21/2022] Open
Abstract
INTRODUCTION We have taken advantage of the large screening capacity of a multiplex immunoassay to better define the respective contribution of articular versus systemic cytokines in experimental arthritis. METHODS We performed a follow up (from 7 hours to 14 days) multiplex analysis of 24 cytokines in synovial fluid and sera of rats developing Antigen-Induced Arthritis (AIA) and confronted their protein level changes with molecular, biochemical, histological and clinical events occurring in the course of the disease. RESULTS The time-scheduled findings in arthritic joints correlated with time-dependent changes of cytokine amounts in joint effusions but not with their blood levels. From seven hours after sensitization, high levels of chemokines (MCP-1, MIP1α, GRO/KC, RANTES, eotaxin) were found in synovial fluid of arthritic knees whereas perivascular infiltration occurred in the synovium; local release of inflammatory cytokines (IFNγ, IL-1β, IL-6) preceded the spreading of inflammation and resulted in progressive degradation of cartilage and bone. Finally a local overexpression of several cytokines/adipocytokines poorly described in arthritis (IL-13, IL-18, leptin) was observed. CONCLUSIONS Distinct panels of cytokines were found in arthritic fluid during AIA, and the expected effect of mediators correlated well with changes occurring in joint tissues. Moreover, multiplex analysis could be helpful to identify new pathogenic mediators and to elucidate the mechanisms supporting the efficacy of putative targeted therapies.
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Affiliation(s)
- Joseph Paquet
- Physiopathologie, Pharmacologie et Ingénierie Articulaire - PPIA-UMR 7561 CNRS UHP, Université de Lorraine, Faculté de Médecine, BP 184, 54505 Vandoeuvre Les Nancy, France
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Madry H, Luyten FP, Facchini A. Biological aspects of early osteoarthritis. Knee Surg Sports Traumatol Arthrosc 2012; 20:407-22. [PMID: 22009557 DOI: 10.1007/s00167-011-1705-8] [Citation(s) in RCA: 149] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2011] [Accepted: 10/04/2011] [Indexed: 01/15/2023]
Abstract
PURPOSE Early OA primarily affects articular cartilage and involves the entire joint, including the subchondral bone, synovial membrane, menisci and periarticular structures. The aim of this review is to highlight the molecular basis and histopathological features of early OA. METHODS Selective review of literature. RESULTS Risk factors for developing early OA include, but are not limited to, a genetic predisposition, mechanical factors such as axial malalignment, and aging. In early OA, the articular cartilage surface is progressively becoming discontinuous, showing fibrillation and vertical fissures that extend not deeper than into the mid-zone of the articular cartilage, reflective of OARSI grades 1.0-3.0. Early changes in the subchondral bone comprise a progressive increase in subchondral plate and subarticular spongiosa thickness. Early OA affects not only the articular cartilage and the subchondral bone but also other structures of the joint, such as the menisci, the synovial membrane, the joint capsule, ligaments, muscles and the infrapatellar fat pad. Genetic markers or marker combinations may become useful in the future to identify early OA and patients at risk. CONCLUSION The high socioeconomic impact of OA suggests that a better insight into the mechanisms of early OA may be a key to develop more targeted reconstructive therapies at this first stage of the disease. LEVEL OF EVIDENCE Systematic review, Level II.
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Affiliation(s)
- Henning Madry
- Experimental Orthopaedics and Osteoarthritis Research, Saarland University, Kirrbergerstrasse, Building 37, 66421, Homburg, Germany.
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Gale Z, Cooper PR, Scheven BA. Glial cell line-derived neurotrophic factor influences proliferation of osteoblastic cells. Cytokine 2012; 57:276-81. [DOI: 10.1016/j.cyto.2011.10.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2011] [Revised: 09/28/2011] [Accepted: 10/22/2011] [Indexed: 01/20/2023]
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Francioli S, Cavallo C, Grigolo B, Martin I, Barbero A. Engineered cartilage maturation regulates cytokine production and interleukin-1β response. Clin Orthop Relat Res 2011; 469:2773-84. [PMID: 21359590 PMCID: PMC3171533 DOI: 10.1007/s11999-011-1826-x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Because the injured joint has an actively inflammatory environment, the survival and repair potential of cartilage grafts may be influenced by inflammatory processes. Understanding the interactions of those processes with the graft may lead to concepts for pharmacologic or surgical solutions allowing improved cartilage repair. QUESTIONS/PURPOSES We asked whether the maturation level of cartilaginous tissues generated in vitro by expanded human articular chondrocytes (HACs) modulate (1) the spontaneous production of cytokines and (2) the response to interleukin (IL)-1β. METHODS Twelve pellets/donor prepared with monolayer-expanded HACs (n = 6 donors) were evaluated at six different culture times for mRNA expression (n = 72) and spontaneous baseline release of monocyte chemoattractant protein (MCP)-1, IL-8, and transforming growth factor (TGF)-β1 (n = 72). We cultured 24 pellets/donor from each of four donors for 1 or 14 days (defined as immature and mature, respectively) and exposed the pellets to IL-1β for 3 days. MCP-1, IL-8, TGF-β1, and metalloprotease (MMP)-1 and MMP-13 were quantified in pellets and culture supernatants. RESULTS By increasing culture time, the spontaneous release of IL-8 and MCP-1 decreased (12.0- and 5.5-fold, respectively), whereas that of TGF-β1 increased (5.4-fold). As compared with immature pellets, mature pellets responded to IL-1β by releasing lower amounts of MMP-1 (2.9-fold) and MMP-13 (1.7-fold) and increased levels of IL-8, MCP-1, and TGF-β1 (1.5-, 5.0-, and 7.5-fold, respectively). IL-8 and MCP-1 promptly returned to baseline on withdrawal of IL-1β. CONCLUSIONS Our observations suggest more mature cartilaginous tissues are more resistant to IL-1β exposure and can activate chemokines required to initiate tissue repair processes. CLINICAL RELEVANCE The implantation of more mature cartilaginous tissues might provide superior graft survival and improve/accelerate cartilage repair.
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Affiliation(s)
- Silvia Francioli
- Department of Biomedicine, University Hospital Basel, Basel, Switzerland
| | - Carola Cavallo
- Laboratorio di Immunologia e Genetica, Istituto di Ricerca Codivilla Putti, Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Brunella Grigolo
- Laboratorio di Immunologia e Genetica, Istituto di Ricerca Codivilla Putti, Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Ivan Martin
- Department of Biomedicine, University Hospital Basel, Basel, Switzerland ,Institute for Surgical Research & Hospital Management, University Hospital Basel, Hebelstrasse 20, ZLF, Room 405, 4031 Basel, Switzerland
| | - Andrea Barbero
- Department of Biomedicine, University Hospital Basel, Basel, Switzerland
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Saetan N, Honsawek S, Tanavalee A, Tantavisut S, Yuktanandana P, Parkpian V. Association of plasma and synovial fluid interferon-γ inducible protein-10 with radiographic severity in knee osteoarthritis. Clin Biochem 2011; 44:1218-22. [PMID: 21819974 DOI: 10.1016/j.clinbiochem.2011.07.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2011] [Revised: 07/09/2011] [Accepted: 07/12/2011] [Indexed: 12/29/2022]
Abstract
OBJECTIVES The objective of this study was to investigate interferon-γ inducible protein-10 (IP-10) concentrations in plasma and synovial fluid of patients with knee osteoarthritis (OA) and to analyze their relationship with disease severity. DESIGN AND METHODS Forty OA patients and 15 healthy controls were enrolled in this study. OA grading was performed according to the Kellgren-Lawrence criteria. IP-10 levels in plasma and synovial fluid were assessed using enzyme-linked immunosorbent assay. RESULTS Plasma IP-10 levels in the knee OA patients were significantly lower than those of controls (P=0.006). IP-10 levels in plasma were markedly higher with regard to paired synovial fluid (P<0.001). Furthermore, IP-10 concentrations in plasma and synovial fluid displayed significant inverse correlation with radiographic severity (r=-0.713, P<0.001 and r=-0.561, P<0.001, respectively). Subsequent analysis revealed that plasma IP-10 levels were positively correlated with synovial fluid IP-10 levels (r=0.424, P=0.006). CONCLUSIONS IP-10 levels in both plasma and synovial fluid were inversely associated with the severity of knee OA. Accordingly, IP-10 could serve as a biomarker for determining disease severity and might play a possible role in the pathophysiology of osteoarthritis.
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Affiliation(s)
- Natthaphon Saetan
- Department of Biochemistry, Inter-Department Program of BioMedical Sciences, Faculty of Medicine, Chulalongkorn University, King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok 10330, Thailand
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Akhtar N, Haqqi TM. Epigallocatechin-3-gallate suppresses the global interleukin-1beta-induced inflammatory response in human chondrocytes. Arthritis Res Ther 2011; 13:R93. [PMID: 21682898 PMCID: PMC3218908 DOI: 10.1186/ar3368] [Citation(s) in RCA: 97] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2011] [Revised: 05/16/2011] [Accepted: 06/17/2011] [Indexed: 12/12/2022] Open
Abstract
Introduction Epigallocatechin-3-gallate (EGCG) is a bioactive polyphenol of green tea and exerts potent anti-inflammatory effects by inhibiting signaling events and gene expression. Interleukin-1beta (IL-1β) is the principal cytokine linked to cartilage degradation in osteoarthritis (OA). The objective of this study was to evaluate the global effect of EGCG on IL-1β-induced expression of proteins associated with OA pathogenesis in human chondrocytes. Methods Primary OA chondrocytes were pretreated with EGCG (10 to 100 uM) and then stimulated with IL-1β (5 ng/ml) for 24 hours. Culture supernatants were incubated with cytokine antibody arrays and immunoreactive proteins (80 proteins) were visualized by enhanced chemiluminiscence. Effect of EGCG on IL-1β-induced expression of 18 selected genes was verified by Real time-PCR and effect on IL-6, IL-8 and tumor necrosis factor-alpha (TNF-α) production was determined using specific ELISAs. Western immunoblotting was used to analyze the effect of EGCG on the interleukin-1 receptor-associated kinase 1 (IRAK-1) and TNF receptor-associated factor 6 (TRAF-6) proteins in IL-1β-stimulated chondrocytes. The role of nuclear factor kappa-B (NF-κB) and mitogen activated protein kinases (MAPKs) in the regulation of selected genes and the mechanism involved in EGCG mediated modulation of these genes was determined by using specific inhibitors for NF- κB (MG132) and MAPKs (p38-MAPK, SB202190; JNK-MAPK, SP600125, ERK-MAPK, PD98059). Results Out of 80 proteins present on the array, constitutive expression of 14% proteins was altered by EGCG treatment. No significant stimulatory effect was observed on the proteins associated with cartilage anabolic response. Stimulation with IL-1β enhanced the expression of 29 proteins. Expression of all 29 proteins up-regulated by IL-1β was found to be suppressed by EGCG. EGCG also inhibited the expression of the signaling intermediate TRAF-6 at 50 and 100 uM concentrations (P < 0.05). Our results identified several new targets of EGCG, including epithelial neutrophil activating peptide-78 (ENA-78), granulocyte macrophage colony stimulation factor (GM-CSF), growth- related oncogene (GRO), GRO-α, IL-6, IL-8, monocyte chemotactic protein-1 (MCP-1), MCP-3, macrophage inflammatory protein-1beta (MIP-1β), granulocyte chemotactic protein-2 (GCP-2), MIP-3alpha, interferon-gamma-inducible protein-10 (IP-10), nucleosome assembly protein-2 (NAP-2) and leukemia inhibitory factor (LIF). The inhibitory effects of EGCG were mainly mediated by inhibiting the activation of NF-κB and c-Jun N-terminal Kinase (JNK)-MAPK in human chondrocytes. Conclusions Our results suggest that the potential of EGCG in OA treatment/prevention may be related to its ability to globally suppress the inflammatory response in human chondrocytes. These results identify additional new targets of EGCG and advocate that EGCG may be a potent chondroprotective agent in OA.
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Affiliation(s)
- Nahid Akhtar
- Department of Medicine/Rheumatology, MetroHealth Medical Centre, Case Western Reserve University, 2500 MetroHealth Drive, Cleveland, OH 44109, USA
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Trayhurn P, Drevon CA, Eckel J. Secreted proteins from adipose tissue and skeletal muscle - adipokines, myokines and adipose/muscle cross-talk. Arch Physiol Biochem 2011; 117:47-56. [PMID: 21158485 DOI: 10.3109/13813455.2010.535835] [Citation(s) in RCA: 147] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
White adipose tissue and skeletal muscle are the largest organs in the body and both are composed of distinct cell types. The signature cell of adipose tissue is the adipocyte while myocytes are the defining cell of skeletal muscle. White adipocytes are major secretory cells and this is increasingly apparent also for myocytes. Both cells secrete a range of bioactive proteins, generally termed adipokines in the case of adipocytes and myokines for muscle cells. There has, however, been some confusion over nomenclature and we suggest that the name myokine is restricted to a protein that is secreted from myocytes, while the term adipokine should be used to describe all proteins secreted from any type of adipocyte (white, brown or brite). These definitions specifically exclude proteins secreted from other cells within adipose tissue and muscle, including macrophages. There is some commonality between the myokines and adipokines in that both groups include inflammation-related proteins - for example, IL-6, Il-8 and MCP-1. Adipokines and myokines appear to be involved in local autocrine/paracrine interactions within adipose tissue and muscle, respectively. They are also involved in an endocrine cross-talk with other tissues, including between adipose tissue and skeletal muscle, and this may be bi-directional. For example, IL-6, secreted from myocytes may stimulate lipolysis in adipose tissue, while adipocyte-derived IL-6 may induce insulin resistance in muscle.
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Affiliation(s)
- Paul Trayhurn
- Obesity Biology Unit, Institute of Ageing and Chronic Diseases, University of Liverpool, UK.
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Polacek M, Bruun JA, Johansen O, Martinez I. Comparative Analyses of the Secretome from Dedifferentiated and Redifferentiated Adult Articular Chondrocytes. Cartilage 2011; 2:186-96. [PMID: 26069579 PMCID: PMC4300778 DOI: 10.1177/1947603510383856] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
OBJECTIVE The main goal of this study was to compare the secretion products derived from human articular chondrocytes established in either long-term monolayer cultures or in scaffold-free 3-dimensional (3-D) cultures. METHODS Stable isotope labeling of amino acids in cell culture (SILAC) was applied to investigate quantitatively the differences between proteins secreted from dedifferentiated and redifferentiated chondrocytes. Proteins in cell supernatants were resolved by 1-D gel electrophoresis and analyzed by mass spectrometry. The results from the proteomic analyses were validated by immunoblotting. Additionally, antibody arrays were used to screen culture supernatants for 79 different morphogens. RESULTS Quantitative SILAC showed that some relevant growth factors such as CTGF or GAS6 were elevated in monolayers, along with proteins characteristic of a dedifferentiated phenotype such as collagen type I and tenascin. In spheroids, data showed overexpression of some cartilage-specific proteins such as aggrecan, together with important matrix regulators such as chitinase-3-like protein and stromelysin-1. Antibody arrays revealed that chondrocytes in monolayer secrete higher levels of leukocyte-activating agents such as MCP-1 and GRO, whereas the spheroid configuration favors the production of cell morphogens such as MCSF and VEGF. CONCLUSION Our results show that some classic dedifferentiation and redifferentiation markers are differentially expressed in 2-D or 3-D culture configurations. Other cell/matrix regulatory molecules are also found to be differentially expressed by chondrocytes in 2-D and 3-D conditions by SILAC and antibody arrays. Our data bring new information for understanding the biology of chondrocytes in general and the process of cartilage tissue reconstruction in particular.
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Affiliation(s)
- Martin Polacek
- Department of Orthopaedic Surgery, Institute of Clinical Medicine, University of Tromsø, Tromsø, Norway,Department of Orthopaedic Surgery, University Hospital of North Norway, Tromsø, Norway
| | | | - Oddmund Johansen
- Department of Orthopaedic Surgery, Institute of Clinical Medicine, University of Tromsø, Tromsø, Norway,Department of Orthopaedic Surgery, University Hospital of North Norway, Tromsø, Norway
| | - Inigo Martinez
- Department of Orthopaedic Surgery, Institute of Clinical Medicine, University of Tromsø, Tromsø, Norway,Inigo Martinez, Department of Orthopaedic Surgery, Institute of Clinical Medicine, University of Tromsø, 9037 Tromsø, Norway
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Ruiz-Romero C, Blanco FJ. Proteomics role in the search for improved diagnosis, prognosis and treatment of osteoarthritis. Osteoarthritis Cartilage 2010; 18:500-9. [PMID: 20060947 DOI: 10.1016/j.joca.2009.11.012] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2009] [Revised: 10/21/2009] [Accepted: 11/23/2009] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Osteoarthritis (OA) is the most common rheumatic pathology. It is related to aging and is characterized primarily by cartilage degradation. Despite its high prevalence, the diagnostic methods currently available are limited and lack sensitivity. The focus of this review is the application of proteomic technologies in the search of new biomarkers for improved diagnosis, prognosis and treatment of OA. METHODS This review focuses on the utilization of proteomics in OA biomarker research to enable early diagnosis, improved prognosis and the application of tailored treatments. RESULTS New diagnostic tests for OA are urgently needed and would also promote the development of alternative therapeutic strategies. Considering that OA involves different tissues and complex biological processes, the most promising diagnostic approach would be the study of combinations of biomarkers. New experimental approaches for the identification and validation of OA biomarkers have recently emerged and include proteomic technologies. These techniques allow the simultaneous analysis of multiple markers and become a very powerful tool for both biomarker discovery and validation. CONCLUSIONS Improvements in proteomics technology will undoubtedly lead to advances in characterizing new OA biomarkers and developing alternative therapies. Even so, further work is required to enhance the performance and reproducibility of proteomics tools before they can be routinely used in clinical trials and practice.
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Affiliation(s)
- C Ruiz-Romero
- Laboratorio de Investigación Osteoarticular y del Envejecimiento, Unidad de Proteómica-Nodo Asociado a ProteoRed-(Genoma España), Centro de Investigación Biomédica, Servicio de Reumatología, Complejo Hospitalario Universitario de A Coruña, 15006-A Coruña, Spain
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Lundborg C, Hahn-Zoric M, Biber B, Hansson E. Glial cell line-derived neurotrophic factor is increased in cerebrospinal fluid but decreased in blood during long-term pain. J Neuroimmunol 2010; 220:108-13. [PMID: 20129677 DOI: 10.1016/j.jneuroim.2010.01.007] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2009] [Revised: 01/12/2010] [Accepted: 01/13/2010] [Indexed: 01/14/2023]
Abstract
Glial cell line-derived neurotrophic factor (GDNF) is involved in inflammation and pain, roles which remain to be delineated clinically. We aimed to evaluate the role of central nervous and peripheral GDNF in long-term pain patients and in controls by analysing intrathecal and blood concentrations of GDNF. Simultaneous measurements of pro-inflammatory cytokines IL-1beta, TNF-alpha and IL-6, anti-inflammatory cytokine IL-10 and chemokine IL-8 served to define inflammatory responses. Generally, blood levels of GDNF were higher than corresponding intrathecal levels. Pain was associated with levels of GDNF that were increased intrathecally, but decreased in blood. IL-8 was uniformly higher in pain patients.
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Affiliation(s)
- Christopher Lundborg
- Department of Anaesthesiology and Intensive Care Medicine, Institute of Clinical Sciences, The Sahlgrenska Academy, University of Gothenburg, 413 45 Gothenburg, Sweden.
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Kuan WP, Tam LS, Wong CK, Ko FWS, Li T, Zhu T, Li EK. CXCL 9 and CXCL 10 as Sensitive markers of disease activity in patients with rheumatoid arthritis. J Rheumatol 2009; 37:257-64. [PMID: 20032101 DOI: 10.3899/jrheum.090769] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVE To assess whether serum levels of CC and CXC chemokines correlate with disease activity in patients with rheumatoid arthritis (RA), and to determine whether these effects predict clinical response. METHODS Serum levels of the chemokines CC (CCL2, CCL5) and CXC (CXCL8, CXCL9, CXCL10) were quantified at baseline and after 12 weeks of treatment with disease-modifying antirheumatic drugs or biologic agents in 28 patients using flow cytometry. Serum from 40 healthy individuals was collected for comparison at baseline. Response to treatment was classified according to the European League Against Rheumatism (EULAR) response criteria. Remission of disease was defined as a Disease Activity Score < 2.6. RESULTS The baseline serum concentrations of CC and CXC chemokines were significantly elevated in patients with active RA compared to healthy controls (p < 0.05) except for CCL2. Significant improvement in all disease activity measurements was observed after 12 weeks of treatment. Seventeen (60.7%) patients achieved good to moderate response based on the EULAR response criteria, and 5 (17.9%) patients achieved remission. The improvement in clinical activity in patients with RA was accompanied by a significant reduction in the serum concentration of CXCL9 and CXCL10 (p < 0.001). A significant reduction in the serum level of CXCL10 was also observed in the group that achieved EULAR response. Serum concentration of CCL5 remained significantly elevated in patients with RA (n = 5) who achieved remission compared to the healthy controls (p < 0.05). CONCLUSION Serum concentration of CXCL9 and CXCL10 may serve as sensitive biomarkers for disease activity in patients with RA.
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Affiliation(s)
- Woon Pang Kuan
- Department of Rheumatology, Hospital Selayang, Selangor, Malaysia
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Sommaggio R, Máñez R, Costa C. TNF, Pig CD86, and VCAM-1 Identified as Potential Targets for Intervention in Xenotransplantation of Pig Chondrocytes. Cell Transplant 2009; 18:1381-93. [DOI: 10.3727/096368909x474249] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Xenotransplantation of genetically engineered porcine chondrocytes may benefit many patients who suffer cartilage defects. In this work, we sought to elucidate the molecular bases of the cellular response to xenogeneic cartilage. To this end, we isolated pig costal chondrocytes (PCC) and conducted a series of functional studies. First, we determined by flow cytometry the cell surface expression of multiple immunoregulatory proteins in resting conditions or after treatment with human TNF-α, IL-1α, or IL-1β, which did not induce apoptosis. TNF-α and to a lesser extent IL-1α led to a marked upregulation of SLA I, VCAM-1, and ICAM-1 on PCC. SLA II and E-selectin remained undetectable in all the conditions assayed. Notably, CD86 was constitutively expressed at moderate levels, whereas CD80 and CD40 were barely detected. To assess their function, we next studied the interaction of PCC with human monoblastic U937 and Jurkat T cells. U937 cells adhered to resting and in a greater proportion to cytokine-stimulated PCC. Consistent with its expression pattern, pig VCAM-1 was key, mediating the increased adhesion after cytokine stimulation. We also conducted coculture experiments with U937 and PCC and measured the release of pig and human cytokines. Stimulated PCC secreted IL-6 and IL-8, whereas U937 secreted IL-8 in response to PCC. Finally, coculture of PCC with Jurkat in the presence of PHA led to a marked Jurkat activation as determined by the increase in IL-2 secretion. This process was dramatically reduced by blocking pig CD86. In summary, CD86 and VCAM-1 on pig chondrocytes may be important triggers of the xenogeneic cellular immune response. These molecules together with TNF could be considered potential targets for intervention in order to develop xenogeneic therapies for cartilage repair.
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Affiliation(s)
- Roberta Sommaggio
- Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), 08907 L'Hospitalet de Llobregat, Barcelona, Spain
| | - Rafael Máñez
- Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), 08907 L'Hospitalet de Llobregat, Barcelona, Spain
| | - Cristina Costa
- Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), 08907 L'Hospitalet de Llobregat, Barcelona, Spain
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Schmutzler BS, Roy S, Hingtgen CM. Glial cell line-derived neurotrophic factor family ligands enhance capsaicin-stimulated release of calcitonin gene-related peptide from sensory neurons. Neuroscience 2009; 161:148-56. [PMID: 19285119 DOI: 10.1016/j.neuroscience.2009.03.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2009] [Revised: 03/02/2009] [Accepted: 03/04/2009] [Indexed: 11/19/2022]
Abstract
The glial cell line-derived neurotrophic factor (GDNF) family ligands (GFLs) are a group of peptides that have been implicated as important factors in inflammation, since they are released in increased amounts during inflammation and induce thermal hyperalgesia upon injection. Mouse isolated sensory neurons in culture and freshly dissociated spinal cord slices were used to examine the enhancement in stimulated-release of the neuropeptide, calcitonin gene-related peptide (CGRP), as a measure of sensitization. Exposure of isolated sensory neurons in culture to GDNF, neurturin, and artemin enhanced the capsaicin-stimulated release of immunoreactive calcitonin gene-related peptide (iCGRP) two- to threefold, but did not increase potassium-stimulated release of iCGRP. A similar profile of sensitization was observed in freshly dissociated spinal cord slices. Persephin, another member of the GFL family thought to be important in development, was unable to induce an enhancement in the release of iCGRP. These results demonstrate that specific GFLs are important mediators affecting sensory neuronal sensitivity, likely through modulation of the capsaicin receptor. The sensitization of sensory neurons during inflammation, and the pain and neurogenic inflammation resulting from this sensitization, may be due in part to the effects of these selected GFLs.
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Affiliation(s)
- B S Schmutzler
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Stark Neurosciences Research Institute, 950 West Walnut Street, Research Building 2, Room 444, Indianapolis, IN 46202, USA.
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Camafeita E, Lamas JR, Calvo E, López JA, Fernández-Gutiérrez B. Proteomics: New insights into rheumatic diseases. Proteomics Clin Appl 2009; 3:226-241. [DOI: 10.1002/prca.200800146] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
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Białoszewska A, Niderla-Bielińska J, Hyc A, Osiecka-Iwan A, Radomska-Leśniewska DM, Kieda C, Malejczyk J. Chondrocyte-specific phenotype confers susceptibility of rat chondrocytes to lysis by NK cells. Cell Immunol 2009; 258:197-203. [DOI: 10.1016/j.cellimm.2009.05.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2009] [Revised: 05/07/2009] [Accepted: 05/11/2009] [Indexed: 11/26/2022]
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Abstract
Antibody-based microarrays are a new powerful proteomic technology that can be used to generate rapid and detailed expression profiles of defined sets of protein analytes in complex samples as well as high-resolution portraits of entire proteomes. Miniaturized micro- and nanoarrays can be printed with numerous antibodies carrying the desired specificities. Multiplexed and ultra-sensitive assays, specifically targeting several analytes in a single experiment, can be performed, while consuming only minute amounts of the sample. The array images generated can then be converted into protein expression profiles, or maps, revealing the detailed composition of the sample. This promising proteomic research tool will thus provide unique opportunities for e.g. disease proteomics, biomarker discovery, disease diagnostics, and patient stratification. This review describes the antibody-based microarray technology and applications thereof.
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Fischer C, Mazzone M, Jonckx B, Carmeliet P. FLT1 and its ligands VEGFB and PlGF: drug targets for anti-angiogenic therapy? Nat Rev Cancer 2008; 8:942-56. [PMID: 19029957 DOI: 10.1038/nrc2524] [Citation(s) in RCA: 431] [Impact Index Per Article: 26.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Less than 5 years ago, it was still not clear whether anti-angiogenic drugs would prove successful in the clinic. After numerous patients with cancer or age-related macular degeneration have been treated with these drugs, they have now become part of the standard range of therapeutic tools. Despite this milestone, anti-angiogenic therapy still faces a number of clinical hurdles, such as improving efficacy, avoiding escape and resistance, and minimizing toxicity. Hopefully, other agents with complementary mechanisms, such as those that target placental growth factor, will offer novel opportunities for improved treatment.
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Affiliation(s)
- Christian Fischer
- Department of Hepatology and Gastroenterology, Charité-Universitätsmedizin, Berlin, Germany
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Zangar RC, Varnum SM, Bollinger N. Studying Cellular Processes and Detecting Disease with Protein Microarrays. Drug Metab Rev 2008; 37:473-87. [PMID: 16257831 DOI: 10.1080/03602530500205309] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Protein microarrays are a rapidly developing analytic tool with diverse applications in biomedical research. These applications include profiling of disease markers or autoimmune responses, understanding molecular pathways, protein modifications, and protein activities. One factor that is driving this expanding usage is the wide variety of experimental formats that protein microarrays can take. In this review, we provide a short, conceptual overview of the different approaches for protein microarray. We then examine some of the most significant applications of these microarrays to date, with an emphasis on how global protein analyses can be used to facilitate biomedical research.
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Affiliation(s)
- Richard C Zangar
- Pacific Northwest National Laboratory, Richland, Washington 99352, USA.
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Germolec D, Burns-Naas L, Gerberick G, Ladics G, Ryan C, Pruett S, Yucesoy B, Luebke R. Immunotoxicogenomics. Genomics 2008. [DOI: 10.3109/9781420067064-12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Iwamoto T, Okamoto H, Toyama Y, Momohara S. Molecular aspects of rheumatoid arthritis: chemokines in the joints of patients. FEBS J 2008; 275:4448-55. [DOI: 10.1111/j.1742-4658.2008.06580.x] [Citation(s) in RCA: 174] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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The application of proteomics to articular cartilage: A new hope for the treatment of osteoarthritis. Joint Bone Spine 2008; 75:376-8. [DOI: 10.1016/j.jbspin.2008.04.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2008] [Accepted: 04/16/2008] [Indexed: 11/19/2022]
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