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Angeletti A, Bruschi M, Kajana X, Spinelli S, Verrina E, Lugani F, Caridi G, Murtas C, Candiano G, Prunotto M, Ghiggeri GM. Mechanisms Limiting Renal Tissue Protection and Repair in Glomerulonephritis. Int J Mol Sci 2023; 24:ijms24098318. [PMID: 37176025 PMCID: PMC10179029 DOI: 10.3390/ijms24098318] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/29/2023] [Accepted: 05/01/2023] [Indexed: 05/15/2023] Open
Abstract
Glomerulonephritis are renal disorders resulting from different pathogenic mechanisms (i.e., autoimmunity, complement, inflammatory activation, etc.). Clarifying details of the pathogenic cascade is basic to limit the progression from starting inflammation to degenerative stages. The balance between tissue injury, activation of protective systems and renal tissue repair determines the final outcome. Induction of an oxidative stress is part of glomerular inflammation and activation of protective antioxidant systems has a crucial role in reducing tissue effects. The generation of highly reactive oxygen species can be evaluated in vivo by tracing the inner-layer content of phosphatidyl ethanolamine and phosphatidyl serine in cell membranes. Albumin is the major antioxidant in serum and the level of oxidized albumin is another indirect sign of oxidative stress. Studies performed in Gn, specifically in FSGS, showed a high degree of oxidation in most contexts. High levels of circulating anti-SOD2 antibodies, limiting the detoxyfing activity of SOD2, have been detected in autoimmune Gn(lupus nephritis and membranous nephropathy) in association with persistence of proteinuria and worsening of renal function. In renal transplant, high levels of circulating anti-Glutathione S-transferase antibodies have been correlated with chronic antibody rejection and progressive loss of renal function. Annexins, mainly ANXA1 and ANXA2, play a general anti-inflammatory effect by inhibiting neutrophil functions. Cytosolic ANXA1 is decreased in apoptotic neutrophils of patients with glomerular polyangitis in association with delayed apoptosis that is considered the mechanism for polyangitis. High circulating levels of anti-ANXA1 and anti-ANXA2 antibodies characterize lupus nephritis implying a reduced anti-inflammatory effect. High circulating levels of antibodies targeting Macrophages (anti-FMNL1) have been detected in Gn in association with proteinuria. They potentially modify the intra-glomerular presence of protective macrophages (M2a, M2c) thus acting on the composition of renal infiltrate and on tissue repair.
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Affiliation(s)
- Andrea Angeletti
- Nephrology, Dialysis and Transplantation Unit, IRCCS, Istituto GianninaGaslini, 16147 Genova, Italy
| | - Maurizio Bruschi
- Nephrology, Dialysis and Transplantation Unit, IRCCS, Istituto GianninaGaslini, 16147 Genova, Italy
- Department of Experimental Medicine (DIMES), University of Genoa, 16126 Genoa, Italy
| | - Xuliana Kajana
- Nephrology, Dialysis and Transplantation Unit, IRCCS, Istituto GianninaGaslini, 16147 Genova, Italy
| | - Sonia Spinelli
- Nephrology, Dialysis and Transplantation Unit, IRCCS, Istituto GianninaGaslini, 16147 Genova, Italy
| | - Enrico Verrina
- Nephrology, Dialysis and Transplantation Unit, IRCCS, Istituto GianninaGaslini, 16147 Genova, Italy
| | - Francesca Lugani
- Nephrology, Dialysis and Transplantation Unit, IRCCS, Istituto GianninaGaslini, 16147 Genova, Italy
| | - Gialuca Caridi
- Nephrology, Dialysis and Transplantation Unit, IRCCS, Istituto GianninaGaslini, 16147 Genova, Italy
| | - Corrado Murtas
- Nephrology and Dialysis Unit, Ospedale Belcolle, 01100 Viterbo, Italy
| | - Giovanni Candiano
- Nephrology, Dialysis and Transplantation Unit, IRCCS, Istituto GianninaGaslini, 16147 Genova, Italy
| | - Marco Prunotto
- Institute of Pharmaceutical Sciences of Western Switzerland, School of Pharmaceutical Sciences, University of Geneva, 1205 Geneva, Switzerland
| | - Gian Marco Ghiggeri
- Nephrology, Dialysis and Transplantation Unit, IRCCS, Istituto GianninaGaslini, 16147 Genova, Italy
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Sajid S, Zariwala MG, Mackenzie R, Turner M, Nell T, Bellary S, Renshaw D. Suppression of Anti-Inflammatory Mediators in Metabolic Disease May Be Driven by Overwhelming Pro-Inflammatory Drivers. Nutrients 2022; 14:2360. [PMID: 35684160 PMCID: PMC9182642 DOI: 10.3390/nu14112360] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 05/27/2022] [Accepted: 05/29/2022] [Indexed: 12/07/2022] Open
Abstract
Obesity is a multifactorial disease and is associated with an increased risk of developing metabolic syndrome and co-morbidities. Dysregulated expansion of the adipose tissue during obesity induces local tissue hypoxia, altered secretory profile of adipokines, cytokines and chemokines, altered profile of local tissue inflammatory cells leading to the development of low-grade chronic inflammation. Low grade chronic inflammation is considered to be the underlying mechanism that increases the risk of developing obesity associated comorbidities. The glucocorticoid induced protein annexin A1 and its N-terminal peptides are anti-inflammatory mediators involved in resolving inflammation. The aim of the current study was to investigate the role of annexin A1 in obesity and associated inflammation. To achieve this aim, the current study analysed data from two feasibility studies in clinical populations: (1) bariatric surgery patients (Pre- and 3 months post-surgery) and (2) Lipodystrophy patients. Plasma annexin A1 levels were increased at 3-months post-surgery compared to pre-surgery (1.2 ± 0.1 ng/mL, n = 19 vs. 1.6 ± 0.1 ng/mL, n = 9, p = 0.009) and positively correlated with adiponectin (p = 0.009, r = 0.468, n = 25). Plasma annexin A1 levels were decreased in patients with lipodystrophy compared to BMI matched controls (0.2 ± 0.1 ng/mL, n = 9 vs. 0.97 ± 0.1 ng/mL, n = 30, p = 0.008), whereas CRP levels were significantly elevated (3.3 ± 1.0 µg/mL, n = 9 vs. 1.4 ± 0.3 µg/mL, n = 31, p = 0.0074). The roles of annexin A1 were explored using an in vitro cell based model (SGBS cells) mimicking the inflammatory status that is observed in obesity. Acute treatment with the annexin A1 N-terminal peptide, AC2-26 differentially regulated gene expression (including PPARA (2.8 ± 0.7-fold, p = 0.0303, n = 3), ADIPOQ (2.0 ± 0.3-fold, p = 0.0073, n = 3), LEP (0.6 ± 0.2-fold, p = 0.0400, n = 3), NAMPT (0.4 ± 0.1-fold, p = 0.0039, n = 3) and RETN (0.1 ± 0.03-fold, p < 0.0001, n = 3) in mature obesogenic adipocytes indicating that annexin A1 may play a protective role in obesity and inflammation. However, this effect may be overshadowed by the continued increase in systemic inflammation associated with rapid tissue expansion in obesity.
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Affiliation(s)
- Sehar Sajid
- Centre for Sport, Exercise and Life Sciences, Institute for Health and Wellbeing, Coventry University, Priory Street, Coventry CV1 5FB, UK; (S.S.); (M.T.)
| | - Mohammed Gulrez Zariwala
- Centre for Nutraceuticals, School of Life Sciences, University of Westminster, 115 New Cavendish Street, London W1W 6UW, UK;
| | - Richard Mackenzie
- School of Life & Health Sciences, University of Roehampton, London SW15 4DJ, UK;
| | - Mark Turner
- Centre for Sport, Exercise and Life Sciences, Institute for Health and Wellbeing, Coventry University, Priory Street, Coventry CV1 5FB, UK; (S.S.); (M.T.)
| | - Theo Nell
- Centre for Cardio-Metabolic Research in Africa, Department of Physiological Sciences, Faculty of Science, Stellenbosch University Main Campus, Stellenbosch 7600, South Africa;
| | - Srikanth Bellary
- The Diabetes Centre, Birmingham Heartlands Hospital, Birmingham B9 5SS, UK;
| | - Derek Renshaw
- Centre for Sport, Exercise and Life Sciences, Institute for Health and Wellbeing, Coventry University, Priory Street, Coventry CV1 5FB, UK; (S.S.); (M.T.)
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Yang YH, Morand E, Leech M. Annexin A1: potential for glucocorticoid sparing in RA. Nat Rev Rheumatol 2013; 9:595-603. [PMID: 23958797 DOI: 10.1038/nrrheum.2013.126] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Glucocorticoids have broad-ranging and powerful anti-inflammatory and immunomodulatory effects. Unsurprisingly, therefore, glucocorticoids are widely and persistently used to treat a large number of inflammatory diseases, including rheumatoid arthritis (RA), despite the well-described adverse effects of these drugs. Annexin A1 is a glucocorticoid-induced molecule that is known to replicate many of the described anti-inflammatory effects of glucocorticoids. In addition to the well-documented roles of this protein in neutrophil function, emerging evidence suggests that annexin A1 is involved in the modulation of T-cell function and the adaptive immune responses relevant to RA. Interest in annexin A1 was renewed after the delineation of the receptors for this protein. This breakthrough also led to advances in our understanding of anti-inflammatory annexin A1 mimetic peptides and agonistic compounds targeting these receptors, particularly those specific for the receptor N-formyl peptide receptor 2 (FPR2). Herein, we review the current knowledge of the biological activities of annexin A1 and their relevance to RA pathogenesis. We also discuss the potential of annexin A1 mimics and strategies aimed at potentiating annexin A1 signalling to become viable approaches to minimizing glucocorticoid use in RA and other inflammatory disorders.
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Affiliation(s)
- Yuan H Yang
- Centre for Inflammatory Diseases, Department of Medicine, Southern Clinical School, Monash University Faculty of Medicine, Nursing and Health Sciences, Monash Medical Centre, Clayton, VIC 3168, Australia
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Kennedy A, Fearon U, Veale DJ, Godson C. Macrophages in synovial inflammation. Front Immunol 2011; 2:52. [PMID: 22566842 PMCID: PMC3342259 DOI: 10.3389/fimmu.2011.00052] [Citation(s) in RCA: 112] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2011] [Accepted: 09/19/2011] [Indexed: 01/09/2023] Open
Abstract
Synovial macrophages are one of the resident cell types in synovial tissue and while they remain relatively quiescent in the healthy joint, they become activated in the inflamed joint and, along with infiltrating monocytes/macrophages, regulate secretion of pro-inflammatory cytokines and enzymes involved in driving the inflammatory response and joint destruction. Synovial macrophages are positioned throughout the sub-lining layer and lining layer at the cartilage–pannus junction and mediate articular destruction. Sub-lining macrophages are now also considered as the most reliable biomarker for disease severity and response to therapy in rheumatoid arthritis (RA). There is a growing understanding of the molecular drivers of inflammation and an appreciation that the resolution of inflammation is an active process rather than a passive return to homeostasis, and this has implications for our understanding of the role of macrophages in inflammation. Macrophage phenotype determines the cytokine secretion profile and tissue destruction capabilities of these cells. Whereas inflammatory synovial macrophages have not yet been classified into one phenotype or another it is widely known that TNFα and IL-l, characteristically released by M1 macrophages, are abundant in RA while IL-10 activity, characteristic of M2 macrophages, is somewhat diminished. Here we will briefly review our current understanding of macrophages and macrophage polarization in RA as well as the elements implicated in controlling polarization, such as cytokines and transcription factors like NFκB, IRFs and NR4A, and pro-resolving factors, such as LXA4 and other lipid mediators which may promote a non-inflammatory, pro-resolving phenotype, and may represent a novel therapeutic paradigm.
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Affiliation(s)
- Aisling Kennedy
- School of Medicine and Medical Sciences, University College Dublin Conway Institute Dublin, Ireland
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Cecchini MP, Merigo F, Cristofoletti M, Osculati F, Sbarbati A. Immunohistochemical localization of Clara cell secretory proteins (CC10-CC26) and Annexin-1 protein in rat major salivary glands. J Anat 2010; 214:752-8. [PMID: 19438769 DOI: 10.1111/j.1469-7580.2009.01074.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
The oral cavity is continuously bathed by saliva secreted by the major and minor salivary glands. Saliva is the first biological medium to confront external materials that are taken into the body as part of food or drink or inhaled volatile substances, and it contributes to the first line of oral defence. In humans, it has been shown that sputum and a variety of biological fluids contain Clara cell secretory proteins (CC10-CC26). Various studies of the respiratory apparatus have suggested their protective effect against inflammatory response and oxidative stress. Recently, CC10 deficiency has been related to the protein Annexin-1 (ANXA1), which has immunomodulatory and anti-inflammatory properties. Considering the defensive role of both Clara cell secretory proteins and ANXA1 in the respiratory apparatus, and the importance of salivary gland secretion in the first line of oral defence, we decided to evaluate the expression of CC10, CC26 and ANXA1 proteins in rat major salivary glands using immunohistochemistry. CC10 expression was found only in the ductal component of the sublingual gland. Parotid and submandibular glands consistently lacked CC10 immunoreactivity. In the parotid gland, both acinar and ductal cells were always CC26-negative, whereas in the submandibular gland, immunostaining was localized in the ductal component and in the periodic acid Schiff (PAS)-positive area. In the sublingual gland, ductal cells were always positive. Acinar cells were not immunostained at all. ANXA1 was expressed in ductal cells in all three major glands. In parotid and sublingual glands, acinar cells were negative. In submandibular glands, immunostaining was present in the mucous PAS-positive portion, whereas serous acinar cells were consistently negative. The existence of some CC10-CC26-ANXA1-positive cells in rat salivary glandular tissue is an interesting preliminary finding which could support the hypothesis, suggested for airway tissue, that these proteins have a defensive and protective role. Protein expression heterogeneity in the different portions of the glands could be an important clue in further investigations of their role.
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Affiliation(s)
- Maria Paola Cecchini
- Department of Morphological and Biomedical Sciences, Anatomy and Histology Section, Faculty of Medicine, University of Verona, Italy.
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Perretti M, Dalli J. Exploiting the Annexin A1 pathway for the development of novel anti-inflammatory therapeutics. Br J Pharmacol 2010; 158:936-46. [PMID: 19845684 DOI: 10.1111/j.1476-5381.2009.00483.x] [Citation(s) in RCA: 114] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The appreciation that the inflammatory reaction does not 'spontaneously' finish, but rather that inflammatory resolution is an active phenomenon brought about by endogenous anti-inflammatory agonists opens multiple opportunities for a reassessment of the complexity of inflammation and its main mediators. This review dwells on one of these pathways, the one centred around the glucocorticoid-regulated protein Annexin A1 and its G protein-coupled receptor. In recent years, much of the knowledge detailing the processes by which Annexin A1 expresses its anti-inflammatory role on innate immunity has been produced. Moreover, the generation of the Annexin A1 null mouse colony has provided important proof-of-concept experiments demonstrating the inhibitory properties of this mediator in the context of inflammatory and/or tissue-injury models. Therefore, Annexin A1 acts as a pivotal homeostatic mediator, where if absent, inflammation would overshoot and be prolonged. This new understanding scientific information could guide us onto the exploitation of the biological properties of Annexin A1 and its receptor to instigate novel drug discovery programmes for anti-inflammatory therapeutics. This line of research relies on the assumption that anti-inflammatory drugs designed upon endogenous anti-inflammatory mediators would be burdened by a lower degree of secondary effects as these agonists would be mimicking specific pathways activated in our body for safe disposal of inflammation. We believe that the next few years will produce examples of such new drugs and the validity of this speculation could then be assessed.
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Affiliation(s)
- Mauro Perretti
- The William Harvey Research Institute, Barts and The London School of Medicine, Queen Mary University of London, Charterhouse Square, London, UK.
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Abstract
The annexin superfamily consists of 13 calcium or calcium and phospholipid binding proteins with a significant degree of biological and structural homology (40-60%). First described in the late 1970s and subsequently referred to as macrocortin, renocortin, lipomodulin, lipocortin-1, and more recently Annexin 1, this 37 kDa calcium and phospholipid binding protein is a strong inhibitor of glucocorticoid-induced eicosanoid synthesis and PLA2. Recent interest in the biological activity of this intriguing molecule has unraveled important functional attributes of Annexin 1 in a variety of inflammatory pathways, on cell proliferation machinery, in the regulation of cell death signaling, in phagocytic clearance of apoptosing cells, and most importantly in the process of carcinogenesis. Here we attempt to present a short review on these diverse biological activities of an interesting and important molecule, which could be a potential target for novel therapeutic intervention in a host of disease states.
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Affiliation(s)
- Lina H K Lim
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597
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Morand EF, Hall P, Hutchinson P, Yang YH. Regulation of annexin I in rheumatoid synovial cells by glucocorticoids and interleukin-1. Mediators Inflamm 2007; 2006:73835. [PMID: 16883066 PMCID: PMC1592590 DOI: 10.1155/mi/2006/73835] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
The glucocorticoid (GC)-induced antiinflammatory
molecule annexin I is expressed in leukocytes and has
antiinflammatory effects in animal models of arthritis, but the
expression of annexin I in rheumatoid arthritis (RA)
fibroblast-like synoviocytes (FLS) is unknown. We report the
constitutive and dexamethasone (DEX)-inducible expression of
annexin I in RA FLS. DEX increased FLS annexin I protein
translocation and mRNA expression. Interleukin (IL)-1β
also induced annexin I translocation and mRNA but also increased
intracellular protein. DEX and IL-1 had additive effects on
annexin I mRNA, but DEX inhibited the inducing effect of
IL-1β on cell surface annexin I. These results indicate that
glucocorticoids and IL-1β upregulate the synthesis and translocation of annexin
I in RA FLS, but interdependent signalling pathways are involved.
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Affiliation(s)
- Eric F. Morand
- Centre for Inflammatory Diseases, Monash Institute for Medical Research, Monash Medical Centre,
Locked Bag No 29, Clayton Victoria 3168, Australia
| | - Pam Hall
- Centre for Inflammatory Diseases, Monash Institute for Medical Research, Monash Medical Centre,
Locked Bag No 29, Clayton Victoria 3168, Australia
| | - Paul Hutchinson
- Centre for Inflammatory Diseases, Monash Institute for Medical Research, Monash Medical Centre,
Locked Bag No 29, Clayton Victoria 3168, Australia
| | - Yuan H. Yang
- Centre for Inflammatory Diseases, Monash Institute for Medical Research, Monash Medical Centre,
Locked Bag No 29, Clayton Victoria 3168, Australia
- *Yuan H. Yang:
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Solito E, Christian HC, Festa M, Mulla A, Tierney T, Flower RJ, Buckingham JC. Post-translational modification plays an essential role in the translocation of annexin A1 from the cytoplasm to the cell surface. FASEB J 2006; 20:1498-500. [PMID: 16720734 PMCID: PMC2049060 DOI: 10.1096/fj.05-5319fje] [Citation(s) in RCA: 82] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Annexin A1 (ANXA1) has an important role in cell-cell communication in the host defense and neuroendocrine systems. In both systems, its actions are exerted extracellularly via membrane-bound receptors on adjacent sites after translocation of the protein from the cytoplasm to the cell surface of adjacent cells. This study used molecular, microscopic, and pharmacological approaches to explore the mechanisms underlying the cellular exportation of ANXA1 in TtT/GF (pituitary folliculo-stellate) cells. LPS caused serine-phosphorylation of ANXA1 (ANXA1-S27-PO4) and translocation of the phosphorylated protein to the cell membrane. The fundamental requirement of phosphorylation for membrane translocation was confirmed by immunofluorescence microscopy on cells transfected with wild-type or mutated (S27/A) ANXA1 constructs tagged with enhanced green fluorescence protein. The trafficking of ANXA1-S27-PO4 to the cell surface was dependent on PI3-kinase and MAP-kinase. It also required HMG-coenzyme A and myristoylation. The effects of HMG-coenzyme A blockade were overcome by mevalonic acid (the product of HMG-coenzyme A) and farnesyl-pyrophosphate but not by geranyl-geranylpyrophosphate or cholesterol. Together, these results suggest that serine-27 phosphorylation is essential for the translocation of ANXA1 across the cell membrane and also identify a role for isoprenyl lipids. Such lipids could target consensus sequences in ANXA1. Alternatively, they may target other proteins in the signal transduction cascade (e.g., transporters).
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Affiliation(s)
- E Solito
- Department of Cellular and Molecular Neuroscience, Division of Neuroscience and Mental Health, Imperial College London, Hammersmith Campus, Du Cane Rd., London W12 0NN, UK
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Gotoh M, Takamoto Y, Kurosaka K, Masuda J, Ida M, Satoh A, Takayama E, Kojima-Aikawa K, Kobayashi Y, Matsumoto I. Annexins I and IV inhibit Staphylococcus aureus attachment to human macrophages. Immunol Lett 2004; 98:297-302. [PMID: 15860231 DOI: 10.1016/j.imlet.2004.12.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2004] [Revised: 12/01/2004] [Accepted: 12/04/2004] [Indexed: 11/26/2022]
Abstract
Annexins are a family of proteins that bind to phospholipids and carbohydrates in a calcium-dependent manner. They are present in a variety of body fluids. Previous studies have shown that annexins have anti-inflammatory activities for lipid A of Gram-negative bacteria. The present study investigated the effect of annexins on interaction between Gram-positive bacteria and immune cells such as macrophages. Annexins I and IV bound to lipoteichoic acids which are surface molecules on Gram-positive bacteria. Binding of annexins I and IV to whole Staphylococcus aureus (S. aureus) were observed and these bindings were inhibited by lipoteichoic acid from S. aureus. Moreover, annexins I and IV suppressed the attachment of S. aureus to phorbol 12-myristate 13-acetate-treated THP-1 cells (human macrophages). These results suggest that annexins I and IV have ligand specificities toward foreign substances, and that the annexins might have some anti-inflammatory property for Gram-positive bacteria.
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Affiliation(s)
- Mari Gotoh
- Graduate School of Humanities and Sciences, Ochanomizu University, Otsuka 2-1-1, Bunkyo-ku, Tokyo 112-8610, Japan
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Moreland LW, O'Dell JR. Glucocorticoids and rheumatoid arthritis: back to the future? ARTHRITIS AND RHEUMATISM 2002; 46:2553-63. [PMID: 12384910 DOI: 10.1002/art.10567] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Larry W Moreland
- School of Medicine, University of Alabama at Birmingham, 1717 6th Avenue South, SRC 068, Birmingham, AL 35294-7201, USA.
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Castro-Caldas M, Duarte CB, Carvalho AP, Lopes MCF. Dexamethasone induces the secretion of annexin I in immature lymphoblastic cells by a calcium-dependent mechanism. Mol Cell Biochem 2002; 237:31-8. [PMID: 12236584 DOI: 10.1023/a:1016502120139] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The mechanisms by which glucocorticoids (GC) regulate annexin I (ANXA1) secretion in different cells are still a matter of debate. The aims of this study were to evaluate the ability of dexamethasone (Dex) to induce ANXA1 secretion and to investigate the roles of the intracellular free Ca2+ concentration ([Ca2+]i), and of the GC receptor, on that process. For this purpose, the human immature lymphoblastic CCRF-CEM cell line was used. Treatment of the cells with Dex, for up to 4 h, significantly reduced the intracellular content of ANXA1 and increased the amount of this protein bound to the outer surface of the plasma membrane, whereas exposure of cells to Dex, for 12 h, induced the synthesis of ANXA1. At the same short time periods, Dex also induced a significant increase in the [Ca2+]i. Incubation of the cells with BAPTA-AM (10 microM), a cell-permeant high affinity Ca2+ chelator, completely inhibited Dex-induced ANXA1 secretion. Furthermore, the Ca2+ ionophore, ionomycin, alone induced ANXA1 cleavage, but not its secretion. Additionally, we used brefeldin A to investigate the involvement of the classical endoplasmic reticulum (ER)-Golgi pathway of protein secretion in the release of ANXA1. The GC receptor antagonist, RU486, neither reverted the Dex-dependent ANXA1 secretion nor inhibited the increase of the [Ca2+]i induced by Dex. Together, our results indicate that Dex induces ANXA1 synthesis and secretion in CCRF-CEM cells. ANXA1 secretion in this cell type show the following characteristics: (i) is unlikely to involve the classical ER-Golgi pathway; (ii) requires a Ca(2+)-dependent cleavage of ANXA1; (iii) involves both Ca(2+)-dependent and independent mechanisms; and (iv) is apparently independent of the GC receptor alpha isoform.
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Affiliation(s)
- M Castro-Caldas
- Center for Neuroscience of Coimbra, Department of Zoology, University of Coimbra, Portugal
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Castro-Caldas M, Duarte CB, Carvalho AR, Lopes MC. 17beta-estradiol promotes the synthesis and the secretion of annexin I in the CCRF-CEM human cell line. Mediators Inflamm 2001; 10:245-51. [PMID: 11759108 PMCID: PMC1781720 DOI: 10.1080/09629350120093713] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
AIMS Annexin I (ANXA1), a 37kDa member of the annexin family of Ca2+-binding and phospholipid-binding proteins, is particularly abundant in various populations of peripheral blood leukocytes. Since this protein modulates the anti-inflammatory actions of the steroid hormones, the purpose of this study was to investigate the effects of the female sex steroid hormone, 17beta-estradiol (E2beta), on the synthesis and secretion of ANXA1 in the human CCRF-CEM acute lymphoblastic leukemia cell line. METHODS Complementary reverse transcription-polymerase chain reaction and Western blot assays were performed to study the effect of E2beta on the expression of mRNA and protein ANXA1, respectively. RESULTS AND DISCUSSION Treatment of CCRF-CEM cells with E2beta, for 30 min, stimulated the synthesis of ANXA1 mRNA molecules, and increased the cellular level of ANXA1 protein. Moreover, when the cells were incubated with E2beta under the same experimental conditions, a significant increase in the amount of ANXA1 secreted from the cells was also detected. ICI 182,780, a selective inhibitor of the intracellular estrogen receptor, had no effect on the E2beta-stimulated expression and externalisation of ANXA1. Taken together, these results indicate that E2beta induces de novo synthesis of ANXA1 and stimulates its secretion in the CCRF-CEM cell line, apparently through a mechanism independent of the intracellular estrogen receptor.
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Affiliation(s)
- M Castro-Caldas
- Center for Neuroscience of Coimbra, Department of Zoology, University of Coimbra, 3004-517 Coimbra, Portugal
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Sampey AV, Hutchinson P, Morand EF. Annexin I surface binding sites and their regulation on human fibroblast-like synoviocytes. ARTHRITIS AND RHEUMATISM 2000; 43:2537-42. [PMID: 11083278 DOI: 10.1002/1529-0131(200011)43:11<2537::aid-anr22>3.0.co;2-m] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE Annexin I is a glucocorticoid-inducible protein whose expression in rheumatoid synovium and inhibitory actions in animal models of arthritis suggests its involvement in human arthritis. The present study explored the potential for annexin I to mediate its antiinflammatory actions via specific cell-surface binding sites on human fibroblast-like synoviocytes (FLS). METHODS Annexin I binding sites on cultured FLS from patients with osteoarthritis (OA) and rheumatoid arthritis (RA) were determined by ligand-binding flow cytometry. Phospholipase A2 (PLA2) activity was determined by arachidonic acid release. RESULTS FLS exhibited saturable, concentration-dependent cell-surface annexin I binding, with >99% of the OA FLS exhibiting binding at an annexin I concentration of 10 microM. Annexin I binding of RA FLS was significantly lower than that of OA FLS. FLS annexin I binding sites were not affected by elastase or a specific elastase inhibitor, and elastase release did not differ between RA and OA cells. In contrast, collagenase significantly increased annexin I binding sites on OA FLS and approached a significant effect on RA FLS. Tumor necrosis factor alpha increased annexin I binding sites on OA and RA FLS. Similarly, interleukin-1beta significantly increased annexin I binding on OA FLS; but the increased binding on RA FLS was not significant. Dexamethasone exerted no significant effect on OA or RA FLS annexin I binding sites. Treatment of RA FLS with an annexin I N-terminal peptide significantly inhibited RA FLS PLA2 activity. CONCLUSION This is the first description of the expression, regulation, and function of cell surface annexin I binding sites on FLS. Reduced annexin I binding sites in RA FLS may impair the sensitivity of certain proinflammatory events to glucocorticoids.
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Affiliation(s)
- A V Sampey
- Monash Medical Centre, Melbourne, Australia
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Sampey AV, Hutchinson P, Morand EF. Annexin I and dexamethasone effects on phospholipase and cyclooxygenase activity in human synoviocytes. Mediators Inflamm 2000; 9:125-32. [PMID: 11132768 PMCID: PMC1781757 DOI: 10.1080/09629350020018357] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Annexin I is a glucocorticoid-induced mediator with anti-inflammatory activity in animal models of arthritis. We studied the effects of a bioactive annexin I peptide, ac 2-26, dexamethasone (DEX), and interleukin-1beta (IL-1beta) on phospholipase A2 (PLA2) and cyclooxygenase (COX) activities and prostaglandin E2 (PGE2) release in cultured human fibroblast-like synoviocytes (FLS). Annexin I binding sites on human osteoarthritic (OA) FLS were detected by ligand binding flow cytometry. PLA2 activity was measured using 3H-arachidonic acid release, PGE2 release and COX activity by ELISA, and COX2 content by flow cytometry. Annexin I binding sites were present on human OA FLS. Annexin I peptide ac 2-26 exerted a significant concentration-dependent inhibition of FLS constitutive PLA2 activity, which was reversed by IL-1beta. In contrast, DEX inhibited IL-1beta-induced PLA2 activity but not constitutive activity. DEX but not annexin I peptide inhibited IL-1beta-induced PGE2 release. COX activity and COX2 expression were significantly increased by IL-1beta. Annexin I peptide demonstrated no inhibition of constitutive or IL-1beta-induced COX activity. DEX exerted a concentration-dependent inhibition of IL-1beta-induced but not constitutive COX activity. Uncoupling of inhibition of PLA2 and COX by annexin I and DEX support the hypothesis that COX is rate-limiting for PGE2 synthesis in FLS. The effect of annexin I but not DEX on constitutive PLA2 activity suggests a glucocorticoid-independent role for annexin I in autoregulation of arachidonic acid production. The lack of effect of annexin I on cytokine-induced PGE2 production suggests PGE2-independent mechanisms for the anti-inflammatory effects of annexin I in vivo.
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Affiliation(s)
- A V Sampey
- Monash Centre for Inflammatory Diseases, Monash University Department of Medicine, Monash Medical Centre, Clayton, Melbourne, Australia
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Yang YH, Hutchinson P, Santos LL, Morand EF. Glucocorticoid inhibition of adjuvant arthritis synovial macrophage nitric oxide production: role of lipocortin 1. Clin Exp Immunol 1998; 111:117-22. [PMID: 9472670 PMCID: PMC1904858 DOI: 10.1046/j.1365-2249.1998.00438.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Nitric oxide (NO) is a mediator of inflammatory injury which is inhibited by glucocorticoids and is implicated in rheumatoid (RA) and adjuvant arthritis (AA). The glucocorticoid-induced anti-inflammatory molecule lipocortin 1 is expressed in RA synovium, but the effects of lipocortin 1 on synovial inflammation have been little studied. We investigated the effects of glucocorticoids and lipocortin 1 on inducible NO synthase (iNOS) and glucocorticoids on the induction of lipocortin 1 in AA synovial macrophages. NO production was measured by Griess assay in supernatants of day 14 AA rat synovial explants and of synovial macrophages purified from enzyme-digested synovium and treated with lipopolysaccharide (LPS) 1 microg/ml, dexamethasone (DEX) 10(-7) M, and anti-lipocortin 1 MoAb. iNOS and lipocortin 1 expression were detected by flow cytometry using specific MoAb. Cell surface lipocortin was determined by Western blot. NO was produced by all AA synovial explants and NO was released by cultured synovial macrophages (14.5 +/- 2.1 micromol/24 h). iNOS was detected in synovial macrophages (ED-1+) by permeabilization flow cytometry. LPS increased synovial macrophage NO release (P < 0.0001) and iNOS expression (P = 0.04). DEX inhibited constitutive (P = 0.002) and LPS-induced (P < 0.001) NO release and iNOS expression (P = 0.03). DEX inhibition of synovial macrophage NO was associated with induction of cell surface and intracellular lipocortin 1. Anti-lipocortin 1 MoAb treatment reduced the inhibition of NO release by DEX (P = 0.002), but had no effect on iNOS expression. These findings demonstrate a role for lipocortin I in the inhibition by glucocorticoids of AA synovial macrophage iNOS activity.
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Affiliation(s)
- Y H Yang
- Centre for Inflammatory Diseases, Monash University Department of Medicine, Monash Medical Centre, Clayton, Melbourne, Australia
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18
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Taylor AD, Christian HC, Morris JF, Flower RJ, Buckingham JC. An antisense oligodeoxynucleotide to lipocortin 1 reverses the inhibitory actions of dexamethasone on the release of adrenocorticotropin from rat pituitary tissue in vitro. Endocrinology 1997; 138:2909-18. [PMID: 9202235 DOI: 10.1210/endo.138.7.5260] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Our previous studies have demonstrated that lipocortin 1 (LC1, also called annexin 1) is an important mediator of glucocorticoid action in the neuroendocrine system, particularly with regard to the powerful inhibitory actions of the steroids on the secretion of ACTH and its hypothalamic releasing hormones. In the present study, we have used an antisense oligodeoxynucleotide (ODN) unique to LC1 to investigate further the role of this protein in the regulatory effects of dexamethasone on ACTH release in vitro from rat anterior pituitary cells. Pituitary cells dispersed with collagenase retained their functional and morphological integrity in vitro and sequestered ODNs in a time-dependent manner from the incubation medium. LC1 was readily detected in the cells by Western blot analysis or by immunoprecipitation/autoradiography after preloading with 35S-methionine/cysteine; the bulk of the protein was contained within an intracellular pool but a small amount was attached to the outer cell surface (pericellular). Dexamethasone (100 nm, 2.5 h) initiated de novo synthesis of LC1; it also increased the amount of LC1 in the pericellular pool detected by either method and caused a concomitant decrease in intracellular LC1. The responses to the steroid were prevented by the inclusion in the medium of an LC1 antisense ODN (50 nM, 3.5 h) but the corresponding sense and scrambled ODN sequences were inert. None of the ODN sequences tested influence the expression of annexin 5 in the pituitary tissue. CRH-41 (100 pM-1 mM), forskolin (1 nM-1 mM) and an L-Ca2+-channel opener BAY K8644 (100 pM-1 microM) initiated concentration dependent increases in immunoreactive- (ir-) ACTH release from the pituitary cells that were reduced (P < 0.01) by preincubation with dexamethasone (100 nM, 2.5 h). The inhibitory effects of the steroid were reversed by the LC1 antisense ODN (50 nM, P < 0.01), whereas the LC1 sense and scrambled control sequences (50 nM) were both ineffective in this respect (P > 0.05). The results add further support to the view that the acute inhibitory effects of glucocorticoids on the secretion of ACTH by the pituitary gland are dependent on the generation of lipocortin 1.
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MESH Headings
- Adrenocorticotropic Hormone/metabolism
- Animals
- Annexin A1/genetics
- Blotting, Western
- Cell Compartmentation
- Cells, Cultured
- DNA, Complementary/metabolism
- Dexamethasone/pharmacology
- Electrophoresis, Polyacrylamide Gel
- Glucocorticoids/pharmacology
- Male
- Microscopy, Confocal
- Oligonucleotides, Antisense/pharmacology
- Pituitary Gland, Anterior/drug effects
- Pituitary Gland, Anterior/metabolism
- RNA, Messenger/metabolism
- Rats
- Rats, Sprague-Dawley
- Thionucleotides/pharmacology
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Affiliation(s)
- A D Taylor
- Department of Pharmacology, Charing Cross and Westminster Medical School, London, United Kingdom
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19
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Communications. Br J Pharmacol 1996. [DOI: 10.1111/j.1476-5381.1996.tb17246.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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20
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Goulding NJ, Pan L, Wardwell K, Guyre VC, Guyre PM. Evidence for specific annexin I-binding proteins on human monocytes. Biochem J 1996; 316 ( Pt 2):593-7. [PMID: 8687405 PMCID: PMC1217389 DOI: 10.1042/bj3160593] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Recombinant human annexin I and a monoclonal antibody specific for this protein (mAb 1B) were used to investigate surface binding of this member of the annexin family of proteins to peripheral blood monocytes. Flow cytometric analysis demonstrated trypsin-sensitive, saturable binding of annexin I to human peripheral blood monocytes but not to admixed lymphocytes. A monoclonal antibody that blocks the anti-phospholipase activity of annexin I also blocked its binding to monocytes. These findings suggest the presence of specific binding sites on monocytes. Furthermore, surface iodination, immunoprecipitation and SDS/PAGE analysis were used to identify two annexin I-binding proteins on the surface of monocytes with molecular masses of 15 kDa and 18 kDa respectively. The identification and characterization of these annexin I-binding molecules should help us to better understand the specific interactions of annexin I with monocytes that lead to down-regulation of pro-inflammatory cell functions.
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Affiliation(s)
- N J Goulding
- Department of Biochemical Pharmacology, Medical College of St. Bartholomew's Hospital, London, U.K
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21
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Buckingham JC. Fifteenth Gaddum Memorial Lecture December 1994. Stress and the neuroendocrine-immune axis: the pivotal role of glucocorticoids and lipocortin 1. Br J Pharmacol 1996; 118:1-19. [PMID: 8733570 PMCID: PMC1909484 DOI: 10.1111/j.1476-5381.1996.tb15360.x] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Affiliation(s)
- J C Buckingham
- Department of Pharmacology, Charing Cross and Westminster Medical School, London
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22
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Kojima K, Yamamoto K, Irimura T, Osawa T, Ogawa H, Matsumoto I. Characterization of carbohydrate-binding protein p33/41: relation with annexin IV, molecular basis of the doublet forms (p33 and p41), and modulation of the carbohydrate binding activity by phospholipids. J Biol Chem 1996; 271:7679-85. [PMID: 8631806 DOI: 10.1074/jbc.271.13.7679] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
A protein, p33/41, expressed in bovine kidney and many other tissues was identified as a lectin which binds to sialoglycoproteins and glycosaminoglycans in a calcium-dependent manner. Partial amino acid sequences of p33/41 are highly homologous to those of calcium/phospholipid-binding annexin protein, annexin IV (endonexin), p33/41 exhibited similar calcium/phospholipid-binding activity (Kojima, K., Ogawa, H., Seno, N., Yamamoto, K., Irimura, T., Osawa, T., and Matsumoto, I. (1993) J. Biol. Chem. 267, 20536-20539). To further characterize p33/41, we cloned the p33/41 cDNA and characterized the recombinant protein encoded by this cDNA. Oligonucleotide probes were synthesized based on partial amino acid sequences of p33/41 and used for screening. A p33/41 cDNA clone was isolated encoding a protein of 319 amino acids with a calculated molecular mass of 35,769 Da. The deduced amino acid sequence was identical to that of bovine annexin IV except for one amino acid substitution. The recombinant protein gave two 33-kDa (p33) and 41-kDa (p41) bands on SDS-polyacrylamide gel electrophoresis under non-reducing conditions, and only one 33-kDa band under reducing conditions, as did the native protein. Mass spectrometric analysis combined with site-directed mutagenesis of each of the four cysteine residues of the recombinant protein revealed that p41 is a dimer of p33 cross-linked at Cys-198 via a disulfide bond. The recombinant protein bound to columns of heparin and fetuin glycopeptides in a calcium dependent manner and to phospholipid vesicles composed of phosphatidylserine (PS)/phosphatidylcholine (PC), phosphatidylethanolamine (PE)/PC or phosphatidylinositol (PI)/PC. Furthermore, concurrent binding assays showed that the binding of the recombinant protein to phospholipid vesicles was not affected by heparin, whereas that to heparin was influenced by the phospholipid composition of the vesicles; the highest binding was observed with vesicles composed of PE/PC. These results suggest that p33/41 binds two types of ligands via different sites and that phospholipids modulate the carbohydrate binding activity of p33/41.
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Affiliation(s)
- K Kojima
- Department of Chemistry, Faculty of Science, Ochanomizu University, Otsuka, Bunkyo-ku, Tokyo, Japan
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Goulding NJ, Dixey J, Morand EF, Dodds RA, Wilkinson LS, Pitsillides AA, Edwards JC. Differential distribution of annexins-I, -II, -IV, and -VI in synovium. Ann Rheum Dis 1995; 54:841-5. [PMID: 7492225 PMCID: PMC1010021 DOI: 10.1136/ard.54.10.841] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
OBJECTIVES To examine the distribution of four annexins in non-inflamed rheumatoid arthritic and osteoarthritic synovial tissue. METHODS Frozen sections were stained with monoclonal antibodies (MAb) specific for annexins-I, -II, -IV, and -VI, and for cell lineage related markers including CD68 and CD14 (macrophages), prolyl hydroxylase (fibroblasts), and CD3 (T cells). RESULTS Each of the annexins was present in synovial tissues in significant amounts in the three groups studied. Annexin-I was predominantly found within the synovial lining layer and double labelling showed it to be present predominantly in cells of the macrophage lineage. In rheumatoid specimens there was increased staining within the lining layer, perivascularly and on macrophages within the tissue stroma. Annexin-II was present in a distribution similar to that of annexin-I, but with more prominent perivascular staining. Annexins-IV and -VI were seen chiefly in association with areas of lymphocyte infiltration in rheumatoid tissue, whereas annexins-I and -II were absent from these areas. Endothelial cells stained weakly positive for annexins-I and -II, and more strongly for -IV and -VI. CONCLUSIONS This study demonstrates that annexins (particularly annexin-I, a putative mediator of the anti-inflammatory activities of glucocorticoids) are abundant in rheumatoid and non-rheumatoid synovial tissue, annexins-IV and -VI having a distribution distinct from that of -I and -II.
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Affiliation(s)
- N J Goulding
- Medical College of St. Bartholomew's Hospital, London, United Kingdom
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An endothelial cell receptor for plasminogen/tissue plasminogen activator. I. Identity with annexin II. J Biol Chem 1994. [DOI: 10.1016/s0021-9258(17)31947-6] [Citation(s) in RCA: 380] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Raynal P, Pollard HB. Annexins: the problem of assessing the biological role for a gene family of multifunctional calcium- and phospholipid-binding proteins. BIOCHIMICA ET BIOPHYSICA ACTA 1994; 1197:63-93. [PMID: 8155692 DOI: 10.1016/0304-4157(94)90019-1] [Citation(s) in RCA: 851] [Impact Index Per Article: 28.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- P Raynal
- Laboratory of Cell Biology and Genetics, NIH, NIDDK, Bethesda, MD 20892
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Affiliation(s)
- M Perretti
- Department of Biochemical Pharmacology, William Harvey Research Institute, Medical College of Saint Bartholomew's Hospital, London, U.K
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Abstract
Glucocorticoids are immunosuppressive and antiinflammatory agents that act through multiple mechanisms. This review highlights recent evidence that lipocortin-1, a member of the annexin family of calcium-binding proteins, can be induced by glucocorticoids, and may mediate some of the effects of glucocorticoids through putative lipocortin-1 receptors, which have been found on the surface of phagocytic cells. Recent advances in annexin biology have been drawn together to formulate a novel hypothesis for the regulation of inflammation.
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Affiliation(s)
- N J Goulding
- Department of Rheumatology, Medical College of St. Bartholomew's Hospital, London, UK
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