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Totoń-Żurańska J, Mikolajczyk TP, Saju B, Guzik TJ. Vascular remodelling in cardiovascular diseases: hypertension, oxidation, and inflammation. Clin Sci (Lond) 2024; 138:817-850. [PMID: 38920058 DOI: 10.1042/cs20220797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 06/08/2024] [Accepted: 06/10/2024] [Indexed: 06/27/2024]
Abstract
Optimal vascular structure and function are essential for maintaining the physiological functions of the cardiovascular system. Vascular remodelling involves changes in vessel structure, including its size, shape, cellular and molecular composition. These changes result from multiple risk factors and may be compensatory adaptations to sustain blood vessel function. They occur in diverse cardiovascular pathologies, from hypertension to heart failure and atherosclerosis. Dynamic changes in the endothelium, fibroblasts, smooth muscle cells, pericytes or other vascular wall cells underlie remodelling. In addition, immune cells, including macrophages and lymphocytes, may infiltrate vessels and initiate inflammatory signalling. They contribute to a dynamic interplay between cell proliferation, apoptosis, migration, inflammation, and extracellular matrix reorganisation, all critical mechanisms of vascular remodelling. Molecular pathways underlying these processes include growth factors (e.g., vascular endothelial growth factor and platelet-derived growth factor), inflammatory cytokines (e.g., interleukin-1β and tumour necrosis factor-α), reactive oxygen species, and signalling pathways, such as Rho/ROCK, MAPK, and TGF-β/Smad, related to nitric oxide and superoxide biology. MicroRNAs and long noncoding RNAs are crucial epigenetic regulators of gene expression in vascular remodelling. We evaluate these pathways for potential therapeutic targeting from a clinical translational perspective. In summary, vascular remodelling, a coordinated modification of vascular structure and function, is crucial in cardiovascular disease pathology.
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Affiliation(s)
- Justyna Totoń-Żurańska
- Center for Medical Genomics OMICRON, Jagiellonian University Medical College, Krakow, Poland
| | - Tomasz P Mikolajczyk
- Center for Medical Genomics OMICRON, Jagiellonian University Medical College, Krakow, Poland
- Department of Internal Medicine, Faculty of Medicine, Jagiellonian University Medical College, Krakow, Poland
| | - Blessy Saju
- BHF Centre for Research Excellence, Centre for Cardiovascular Sciences, The University of Edinburgh, Edinburgh, U.K
| | - Tomasz J Guzik
- Center for Medical Genomics OMICRON, Jagiellonian University Medical College, Krakow, Poland
- Department of Internal Medicine, Faculty of Medicine, Jagiellonian University Medical College, Krakow, Poland
- BHF Centre for Research Excellence, Centre for Cardiovascular Sciences, The University of Edinburgh, Edinburgh, U.K
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Li Y, Wu Y, Huang J, Cao X, An Q, Peng Y, Zhao Y, Luo Y. A variety of death modes of neutrophils and their role in the etiology of autoimmune diseases. Immunol Rev 2024; 321:280-299. [PMID: 37850797 DOI: 10.1111/imr.13284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2023]
Abstract
Neutrophils are important in the context of innate immunity and actively contribute to the progression of diverse autoimmune disorders. Distinct death mechanisms of neutrophils may exhibit specific and pivotal roles in autoimmune diseases and disease pathogenesis through the orchestration of immune homeostasis, the facilitation of autoantibody production, the induction of tissue and organ damage, and the incitement of pathological alterations. In recent years, more studies have provided in-depth examination of various neutrophil death modes, revealing nuances that challenge conventional understanding and underscoring their potential clinical utility in diagnosis and treatment. This review explores the multifaceted processes and characteristics of neutrophil death, with a focus on tailored investigations within various autoimmune diseases. It also highlights the potential interplay between neutrophil death and the landscape of autoimmune disorders. The review encapsulates the pertinent pathways implicated in various neutrophil death mechanisms across diverse autoimmune diseases while also charts possible avenues for future research.
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Affiliation(s)
- Yanhong Li
- Department of Rheumatology & Immunology, Laboratory of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yinlan Wu
- Department of Rheumatology & Immunology, Laboratory of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Jingang Huang
- Medical Research Center, Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Xue Cao
- Department of Rheumatology and Immunology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, People's Hospital of Henan University, Zhengzhou, Henan, China
| | - Qiyuan An
- School of Inspection and Biotechnology, Southern Medical University, Guangzhou, China
| | - Yun Peng
- Department of Rheumatology and Clinical Immunology, School of Medicine, The First Affiliated Hospital of Xiamen University, Xiamen University, Xiamen, Fujian, China
| | - Yi Zhao
- Department of Rheumatology & Immunology, Laboratory of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yubin Luo
- Department of Rheumatology & Immunology, Laboratory of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Institute of Immunology and Inflammation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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Leppkes M, Schick M, Hohberger B, Mahajan A, Knopf J, Schett G, Muñoz LE, Herrmann M. Updates on NET formation in health and disease. Semin Arthritis Rheum 2020; 49:S43-S48. [PMID: 31779852 DOI: 10.1016/j.semarthrit.2019.09.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 09/25/2019] [Indexed: 12/30/2022]
Abstract
Following a recent presentation at ATT Mallorca in May 2019, this paper gives insight into the current research of neutrophil extracellular traps (NETs) and their role in conditions of health and disease. Though NETs reportedly support disease progression and play a role in the development of autoimmune diseases, we argue that NETs are mandatory for the mammalian immune system. They are especially important to patrol and surveil outer and inner body surfaces and are capable to perform major anti-microbial activities. Neutrophils are the first cells to be recruited to wounds, where they form NETs and aggregated NETs (aggNETs). The latter close the wounds and are ever-present in skinfolds, where the integrity of the skin is impaired. On infected ocular surfaces NETs form an antimicrobial barrier, which prevents bacterial dissemination into the brain. In the oral cavity, NETs display anti-bacterial properties. Although NETs on internal body surfaces like ducts and vessels offer superficial surveillance, exaggerated aggNET formation may directly block vessels and ducts and thus cause thrombi and ductal occlusion, respectively. In the case of biliopancreatic ducts, clogging by aggNETs may even cause acute pancreatitis. Insufficient clearance of apoptotic remnants and NETs can lead to autoimmune diseases or unwanted, chronic inflammation. To prevent this, macrophages cloak dead cells, while apoptotic cells are cleared. We conclude that neutrophils, NETs and aggNETs can be considered double edged swords that orchestrate the innate immune response but carry the risk to precipitate autoimmunity and epithelial damage.
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Affiliation(s)
- Moritz Leppkes
- Friedrich Alexander University Erlangen-Nürnberg (FAU), Department of Internal Medicine 1 - Gastroenterology, Pneumology and Endocrinology, Universitätsklinikum Erlangen, 91054 Erlangen, Germany
| | - Maximilian Schick
- Friedrich Alexander University Erlangen-Nürnberg (FAU), Department of Internal Medicine 3 - Rheumatology and Immunology, Universitätsklinikum Erlangen, 90154 Erlangen, Germany
| | - Bettina Hohberger
- Friedrich Alexander University Erlangen-Nürnberg (FAU), Department of Ophtalmology, Universitätsklinikum Erlangen, 90154 Erlangen, Germany
| | - Aparna Mahajan
- Friedrich Alexander University Erlangen-Nürnberg (FAU), Department of Internal Medicine 3 - Rheumatology and Immunology, Universitätsklinikum Erlangen, 90154 Erlangen, Germany
| | - Jasmin Knopf
- Friedrich Alexander University Erlangen-Nürnberg (FAU), Department of Internal Medicine 3 - Rheumatology and Immunology, Universitätsklinikum Erlangen, 90154 Erlangen, Germany
| | - Georg Schett
- Friedrich Alexander University Erlangen-Nürnberg (FAU), Department of Internal Medicine 3 - Rheumatology and Immunology, Universitätsklinikum Erlangen, 90154 Erlangen, Germany
| | - Luis E Muñoz
- Friedrich Alexander University Erlangen-Nürnberg (FAU), Department of Internal Medicine 3 - Rheumatology and Immunology, Universitätsklinikum Erlangen, 90154 Erlangen, Germany.
| | - Martin Herrmann
- Friedrich Alexander University Erlangen-Nürnberg (FAU), Department of Internal Medicine 3 - Rheumatology and Immunology, Universitätsklinikum Erlangen, 90154 Erlangen, Germany
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Towards a pro-resolving concept in systemic lupus erythematosus. Semin Immunopathol 2019; 41:681-697. [DOI: 10.1007/s00281-019-00760-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 09/06/2019] [Indexed: 12/13/2022]
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Iizuka A, Segawa S, Kondo Y, Kaneko S, Yokosawa M, Furuyama K, Miki H, Tahara-Hanaoka S, Shibuya A, Tsuboi H, Goto D, Matsumoto I, Shibayama S, Sumida T. Allergy inhibitory receptor-1 inhibits autoantibody production via upregulation of apoptotic debris clearance by macrophages. Int J Rheum Dis 2018; 21:2071-2078. [PMID: 30556363 DOI: 10.1111/1756-185x.13381] [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: 10/15/2017] [Revised: 07/18/2018] [Accepted: 08/05/2018] [Indexed: 11/26/2022]
Abstract
AIM Allergy inhibitory receptor-1 (Allergin-1) is a newly identified immune regulatory molecule thought to influence autoantibody production. Autoantibody production, like that observed in Allergin-1-deficient mice, is crucial in the pathogenesis of several autoimmune diseases such as systemic lupus erythematosus. The purpose of this study is to clarify the regulatory role of Allergin-1-mediated autoantibody production using a murine model of thymocytic anaphylaxis. METHODS C57BL/6 (WT) and Allergin-1-deficient mice were treated with apoptotic cells from naive thymocytes stimulated by dexamethasone. Antibody titers of total or immunoglobulin G (IgG) subclass of anti-double-stranded DNA (anti-dsDNA) and anti-histone antibody from serum were measured using an enzyme-linked immunosorbent assay. Macrophages from wild-type (WT) or Allergin-1-deficient mice were co-cultured with fluorescence-labeled apoptotic thymocytes or fluorogenic reagent and resultant phagocytic activity was quantified by with flow cytometry. RESULTS After apoptotic cells injection, antibody titers of total and IgG3 anti-dsDNA and total anti-histone from serum were significantly increased in Allergin-1-deficient versus WT mice. Phagocytic activity was significantly lower in macrophages from Allergin-1-deficient mice versus WT mice. CONCLUSION Allergin-1 might play an inhibitory role in autoantibody production via upregulation of macrophage phagocytosis.
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Affiliation(s)
- Akira Iizuka
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Seiji Segawa
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Yuya Kondo
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Shunta Kaneko
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Masahiro Yokosawa
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Kotona Furuyama
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Haruka Miki
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Satoko Tahara-Hanaoka
- Department of Immunology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Akira Shibuya
- Department of Immunology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Hiroto Tsuboi
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Daisuke Goto
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Isao Matsumoto
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
| | - Shiro Shibayama
- Research Center of Immunology, ONO Pharmaceutical Co. Ltd., Osaka, Japan
| | - Takayuki Sumida
- Department of Internal Medicine, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
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Dallenga T, Repnik U, Corleis B, Eich J, Reimer R, Griffiths GW, Schaible UE. M. tuberculosis-Induced Necrosis of Infected Neutrophils Promotes Bacterial Growth Following Phagocytosis by Macrophages. Cell Host Microbe 2017; 22:519-530.e3. [DOI: 10.1016/j.chom.2017.09.003] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Revised: 05/27/2017] [Accepted: 09/01/2017] [Indexed: 01/05/2023]
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Percutaneous Transluminal Angioplasty in Patients with Peripheral Arterial Disease Does Not Affect Circulating Monocyte Subpopulations. BIOMED RESEARCH INTERNATIONAL 2016; 2016:2708957. [PMID: 27818999 PMCID: PMC5081453 DOI: 10.1155/2016/2708957] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 07/30/2016] [Accepted: 09/20/2016] [Indexed: 11/29/2022]
Abstract
Monocytes are mononuclear cells characterized by distinct morphology and expression of CD14 and CD16 surface receptors. Classical, quiescent monocytes are positive for CD14 (lipopolysaccharide receptor) but do not express Fc gamma receptor III (CD16). Intermediate monocytes coexpress CD16 and CD14. Nonclassical monocytes with low expression of CD14 represent mature macrophage-like monocytes. Monocyte behavior in peripheral arterial disease (PAD) and during vessel wall directed treatment is not well defined. This observation study aimed at monitoring of acute changes in monocyte subpopulations during percutaneous transluminal angioplasty (PTA) in PAD patients. Patients with Rutherford 3 and 4 PAD with no signs of inflammatory process underwent PTA of iliac, femoral, or popliteal segments. Flow cytometry for CD14, CD16, HLA-DR, CD11b, CD11c, and CD45RA antigens allowed characterization of monocyte subpopulations in blood sampled before and after PTA (direct angioplasty catheter sampling). Patients were clinically followed up for 12 months. All 61 enrolled patients completed 12-month follow-up. Target vessel failure occurred in 12 patients. While absolute counts of monocyte were significantly lower after PTA, only subtle monocyte activation after PTA (CD45RA and β-integrins) occurred. None of the monocyte parameters correlated with long-term adverse clinical outcome. Changes in absolute monocyte counts and subtle changes towards an activation phenotype after PTA may reflect local cell adhesion phenomenon in patients with Rutherford 3 or 4 peripheral arterial disease.
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Schaper F, de Leeuw K, Horst G, Bootsma H, Limburg PC, Heeringa P, Bijl M, Westra J. High mobility group box 1 skews macrophage polarization and negatively influences phagocytosis of apoptotic cells. Rheumatology (Oxford) 2016; 55:2260-2270. [PMID: 27632996 DOI: 10.1093/rheumatology/kew324] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Revised: 07/19/2016] [Indexed: 01/14/2023] Open
Abstract
OBJECTIVES Decreased phagocytosis of apoptotic cells plays an important role in the pathogenesis of SLE. This can lead to secondary necrosis and release of nuclear proteins, such as high mobility group box 1 (HMGB1). We hypothesized that increased HMGB1 levels, as present in SLE, skew macrophage differentiation towards M1-like phenotypes and thereby diminish uptake of apoptotic cells. The aim of this study was to investigate the effect of HMGB1 on macrophage polarization and on phagocytic capacity of differentiated macrophages. METHODS SLE patients with quiescent disease (SLEDAI ⩽4) and healthy controls (HCs) were included. Monocytes and differentiated M1 and M2 macrophages were assessed for expression of M1 and M2 markers and for phagocytic capacity. HMGB1 was added during differentiation and during phagocytosis. RESULTS Expression of CD86 (M1) was not different, whereas CD163 (M2) was significantly lower on SLE monocytes. After differentiation, no differences regarding surface receptor expression and phagocytic capacity were observed between M1 and M2 macrophages from SLE patients and HCs. Addition of HMGB1 during M2 differentiation resulted in high IL-6 and TNF-α mRNA expression and reduced phagocytic capacity of apoptotic cells. Furthermore, adding HMGB1 to apoptotic Jurkat cells diminished phagocytosis of these cells. CONCLUSION Circulating monocytes from SLE patients display an M1-like phenotype compared with HCs, but in vitro differentiation abolishes this difference. HMGB1 skews differentiation of M2-like macrophages towards an M1-like phenotype and, subsequently, reduces phagocytosis of apoptotic cells. These data imply that the phenotype of monocytes or macrophages is determined by their environment, such as the presence of cytokines and HMGB1.
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Affiliation(s)
| | | | - Gerda Horst
- Departments of Rheumatology & Clinical Immunology
| | | | | | - Peter Heeringa
- Pathology & Medical Biology, University Medical Center Groningen, University of Groningen
| | - Marc Bijl
- Department of Internal Medicine and Rheumatology, Martini Hospital, Groningen, The Netherlands
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Jiao Q, Qian Q, Zhao Z, Fang F, Hu X, An J, Wu J, Liu C. Expression of human T cell immunoglobulin domain and mucin-3 (TIM-3) and TIM-3 ligands in peripheral blood from patients with systemic lupus erythematosus. Arch Dermatol Res 2016; 308:553-61. [DOI: 10.1007/s00403-016-1665-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Revised: 01/13/2016] [Accepted: 06/10/2016] [Indexed: 02/07/2023]
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Several Critical Cell Types, Tissues, and Pathways Are Implicated in Genome-Wide Association Studies for Systemic Lupus Erythematosus. G3-GENES GENOMES GENETICS 2016; 6:1503-11. [PMID: 27172182 PMCID: PMC4889647 DOI: 10.1534/g3.116.027326] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
We aimed to elucidate the cell types, tissues, and pathways influenced by common variants in systemic lupus erythematosus (SLE). We applied a nonparameter enrichment statistical approach, termed SNPsea, in 181 single nucleotide polymorphisms (SNPs) that have been identified to be associated with the risk of SLE through genome-wide association studies (GWAS) in Eastern Asian and Caucasian populations, to manipulate the critical cell types, tissues, and pathways. In the two most significant cells’ findings (B lymphocytes and CD14+ monocytes), we subjected the GWAS association evidence in the Han Chinese population to an enrichment test of expression quantitative trait locus (QTL) sites and DNase I hypersensitivity, respectively. In both Eastern Asian and Caucasian populations, we observed that the expression level of SLE GWAS implicated genes was significantly elevated in xeroderma pigentosum B cells (P ≤ 1.00 × 10−6), CD14+ monocytes (P ≤ 2.74 × 10−4) and CD19+ B cells (P ≤ 2.00 × 10−6), and plasmacytoid dendritic cells (pDCs) (P ≤ 9.00 × 10−6). We revealed that the SLE GWAS-associated variants were more likely to reside in expression QTL in B lymphocytes (q1/q0 = 2.15, P = 1.23 × 10−44) and DNase I hypersensitivity sites (DHSs) in CD14+ monocytes (q1/q0 = 1.41, P = 0.08). We observed the common variants affected the risk of SLE mostly through by regulating multiple immune system processes and immune response signaling. This study sheds light on several immune cells and responses, as well as the regulatory effect of common variants in the pathogenesis of SLE.
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Mikołajczyk TP, Osmenda G, Batko B, Wilk G, Krezelok M, Skiba D, Sliwa T, Pryjma JR, Guzik TJ. Heterogeneity of peripheral blood monocytes, endothelial dysfunction and subclinical atherosclerosis in patients with systemic lupus erythematosus. Lupus 2015; 25:18-27. [PMID: 26251402 DOI: 10.1177/0961203315598014] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Accepted: 06/29/2015] [Indexed: 11/16/2022]
Abstract
BACKGROUND Systemic lupus erythematosus (SLE) is characterized by increased cardiovascular morbidity and mortality. SLE patients have increased prevalence of subclinical atherosclerosis, although the mechanisms of this observation remain unclear. Considering the emerging role of monocytes in atherosclerosis, we aimed to investigate the relationship between subclinical atherosclerosis, endothelial dysfunction and the phenotype of peripheral blood monocytes in SLE patients. METHODS We characterized the phenotype of monocyte subsets defined by the expression of CD14 and CD16 in 42 patients with SLE and 42 non-SLE controls. Using ultrasonography, intima-media thickness (IMT) of carotid arteries and brachial artery flow-mediated dilation (FMD) as well as nitroglycerin-induced dilation (NMD) were assessed. RESULTS Patients with SLE had significantly, but only modestly, increased IMT when compared with non-SLE controls (median (25th/75th percentile) 0.65 (0.60/0.71) mm vs 0.60 (0.56/0.68) mm; p < 0.05). Importantly, in spite of early atherosclerotic complications in the studied SLE group, marked endothelial dysfunction was observed. CD14dimCD16+proinflammatory cell subpopulation was positively correlated with IMT in SLE patients. This phenomenon was not observed in control individuals. Interestingly, endothelial dysfunction assessed by FMD was not correlated with any of the studied monocyte subsets. CONCLUSIONS Our observations suggest that CD14dimCD16+monocytes are associated with subclinical atherosclerosis in SLE, although the mechanism appears to be independent of endothelial dysfunction.
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Affiliation(s)
- T P Mikołajczyk
- Translational Medicine Laboratory, Department of Internal Medicine, Jagiellonian University School of Medicine, Krakow, Poland
| | - G Osmenda
- Translational Medicine Laboratory, Department of Internal Medicine, Jagiellonian University School of Medicine, Krakow, Poland
| | - B Batko
- Division of Rheumatology, J Dietl Clinical Hospital, Krakow, Poland
| | - G Wilk
- Translational Medicine Laboratory, Department of Internal Medicine, Jagiellonian University School of Medicine, Krakow, Poland
| | - M Krezelok
- Division of Rheumatology, J Dietl Clinical Hospital, Krakow, Poland
| | - D Skiba
- Translational Medicine Laboratory, Department of Internal Medicine, Jagiellonian University School of Medicine, Krakow, Poland Institute of Cardiovascular and Medical Sciences, University of Glasgow, UK
| | - T Sliwa
- Translational Medicine Laboratory, Department of Internal Medicine, Jagiellonian University School of Medicine, Krakow, Poland
| | - J R Pryjma
- Department of Immunology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - T J Guzik
- Translational Medicine Laboratory, Department of Internal Medicine, Jagiellonian University School of Medicine, Krakow, Poland Institute of Cardiovascular and Medical Sciences, University of Glasgow, UK
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Kimani SG, Geng K, Kasikara C, Kumar S, Sriram G, Wu Y, Birge RB. Contribution of Defective PS Recognition and Efferocytosis to Chronic Inflammation and Autoimmunity. Front Immunol 2014; 5:566. [PMID: 25426118 PMCID: PMC4226236 DOI: 10.3389/fimmu.2014.00566] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2014] [Accepted: 10/23/2014] [Indexed: 12/14/2022] Open
Abstract
The rapid and efficient clearance of apoptotic cells results in the elimination of auto-antigens and provides a strong anti-inflammatory and immunosuppressive signal to prevent autoimmunity. While professional and non-professional phagocytes utilize a wide array of surface receptors to recognize apoptotic cells, the recognition of phosphatidylserine (PS) on apoptotic cells by PS receptors on phagocytes is the emblematic signal for efferocytosis in metazoans. PS-dependent efferocytosis is associated with the production of anti-inflammatory factors such as IL-10 and TGF-β that function, in part, to maintain tolerance to auto-antigens. In contrast, when apoptotic cells fail to be recognized and processed for degradation, auto-antigens persist, such as self-nucleic acids, which can trigger immune activation leading to autoantibody production and autoimmunity. Despite the fact that genetic mouse models clearly demonstrate that loss of PS receptors can lead to age-dependent auto-immune diseases reminiscent of systemic lupus erythematosus (SLE), the link between PS and defective clearance in chronic inflammation and human autoimmunity is not well delineated. In this perspective, we review emerging questions developing in the field that may be of relevance to SLE and human autoimmunity.
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Affiliation(s)
- Stanley Gititu Kimani
- Department of Biochemistry and Molecular Biology, Rutgers School of Biomedical and Health Sciences - Cancer Center , Newark, NJ , USA
| | - Ke Geng
- Department of Biochemistry and Molecular Biology, Rutgers School of Biomedical and Health Sciences - Cancer Center , Newark, NJ , USA
| | - Canan Kasikara
- Department of Biochemistry and Molecular Biology, Rutgers School of Biomedical and Health Sciences - Cancer Center , Newark, NJ , USA
| | - Sushil Kumar
- Department of Biochemistry and Molecular Biology, Rutgers School of Biomedical and Health Sciences - Cancer Center , Newark, NJ , USA
| | - Ganapathy Sriram
- Department of Biochemistry and Molecular Biology, Rutgers School of Biomedical and Health Sciences - Cancer Center , Newark, NJ , USA
| | - Yi Wu
- Cyrus Tang Hematology Center, Jiangsu Institute of Hematology, First Affiliated Hospital, Soochow University , Suzhou , China ; Sol Sherry Thrombosis Research Center, Temple University School of Medicine , Philadelphia, PA , USA
| | - Raymond B Birge
- Department of Biochemistry and Molecular Biology, Rutgers School of Biomedical and Health Sciences - Cancer Center , Newark, NJ , USA
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