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Tortosa-Carreres J, Cubas-Núñez L, Piqueras M, Castillo-Villalba J, Quintanilla-Bordàs C, Quiroga-Varela A, Villarrubia N, Monreal E, Álvarez G, Gasque-Rubio R, Forés-Toribio L, Carratalà-Boscà S, Lucas C, Sanz MT, Ramió-Torrentà L, Villar LM, Casanova B, Laiz B, Pérez-Miralles FC. Evaluating the complement C1q levels in serum and cerebrospinal fluid in multiple sclerosis patients: Could it serve as a valuable marker in clinical practice? J Neuroimmunol 2024; 394:578428. [PMID: 39121816 DOI: 10.1016/j.jneuroim.2024.578428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 07/16/2024] [Accepted: 08/01/2024] [Indexed: 08/12/2024]
Abstract
Immunohistochemical studies have identified complement component C1q in MS lesions. We aimed to compare serum (sC1q) and CSF (csfC1q) levels in a large cohort of MS patients (pwMS) (n = 222) with those of healthy controls (HC, n = 52), individuals with other immune (IND, n = 14), and non-immune neurological disorders (nIND, n = 15), and to analyze their correlation with other biomarkers. pwMS were divided into three series based on their origin. CSF samples were unavailable for HC. All three pwMS cohorts had lower sC1q levels compared to HC and IND. csfC1q was higher in one pwMS cohort, with a trend in another, and correlated with IgG, Free Kappa Light Chains, GFAP, and Chitinase-3 Like Protein-1 in CSF. Our findings suggest a significant role for C1q in MS pathophysiology, potentially serving as a biomarker for disease identification.
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Affiliation(s)
- Jordi Tortosa-Carreres
- Laboratory Department, La Fe University and Polytechnic Hospital, 46026, Valencia, Spain; Neuroimmunology Unit, Health Research Institute La Fe, 46026, Valencia. Spain.
| | - Laura Cubas-Núñez
- Neuroimmunology Unit, Health Research Institute La Fe, 46026, Valencia. Spain.
| | - Mónica Piqueras
- Laboratory Department, La Fe University and Polytechnic Hospital, 46026, Valencia, Spain
| | | | - Carlos Quintanilla-Bordàs
- Neuroimmunology Unit, Health Research Institute La Fe, 46026, Valencia. Spain; Neurology Department, La Fe University and Polytechnic Hospital, 46026, Valencia, Spain
| | - Ana Quiroga-Varela
- Girona Neuroimmunology and Multiple Sclerosis Unit, Neurology Department, Dr. Josep Trueta University Hospital and Santa Caterina Hospital, Girona, Spain; Neurodegeneration and Neuroinflammation Research Group, Girona Biomedical Research Institute (IDIBGI), Salt, Spain.
| | - Noelia Villarrubia
- Departments of Immunology and Neurology, Ramon y Cajal University Hospital, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Red Española de Esclerosis Múltiple (REEM), Red de Enfermedades Inflamatorias (REI), ISCIII, Madrid, Spain.
| | - Enric Monreal
- Departments of Immunology and Neurology, Ramon y Cajal University Hospital, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Red Española de Esclerosis Múltiple (REEM), Red de Enfermedades Inflamatorias (REI), ISCIII, Madrid, Spain.
| | - Gary Álvarez
- Girona Neuroimmunology and Multiple Sclerosis Unit, Neurology Department, Dr. Josep Trueta University Hospital and Santa Caterina Hospital, Girona, Spain; Neurodegeneration and Neuroinflammation Research Group, Girona Biomedical Research Institute (IDIBGI), Salt, Spain.
| | - Raquel Gasque-Rubio
- Neuroimmunology Unit, Health Research Institute La Fe, 46026, Valencia. Spain
| | | | | | - Celia Lucas
- Computer Systems, La Fe University and Polytechnic Hospital, 46026, Valencia, Spain..
| | - María T Sanz
- Department of Didactic of Mathematics. University of Valencia, Spain.
| | - Lluís Ramió-Torrentà
- Girona Neuroimmunology and Multiple Sclerosis Unit, Neurology Department, Dr. Josep Trueta University Hospital and Santa Caterina Hospital, Girona, Spain.
| | - Luisa María Villar
- Multiple Sclerosis Unit, Ramon y Cajal University Hospital, Madrid, Spain.
| | - Bonaventura Casanova
- Neuroimmunology Unit, Health Research Institute La Fe, 46026, Valencia. Spain; Neurology Department, La Fe University and Polytechnic Hospital, 46026, Valencia, Spain
| | - Begoña Laiz
- Laboratory Department, La Fe University and Polytechnic Hospital, 46026, Valencia, Spain.
| | - Francisco Carlos Pérez-Miralles
- Neuroimmunology Unit, Health Research Institute La Fe, 46026, Valencia. Spain; Neurology Department, La Fe University and Polytechnic Hospital, 46026, Valencia, Spain
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2
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Radulova G, Kapogianni A, Cholakova G, Iliev S, Ivanova A, Bogoeva V, Tsacheva I. Galectin-3 - A novel ligand of complement protein C1q. Int J Biol Macromol 2024; 262:129930. [PMID: 38325676 DOI: 10.1016/j.ijbiomac.2024.129930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 01/15/2024] [Accepted: 01/31/2024] [Indexed: 02/09/2024]
Abstract
In the present study we report a novel interaction of human C1q, a primary activator of the Complement system, with human Galectin-3 (Gal-3). We investigated the potential recognition between C1q and Gal-3 on a solid hydrophobic surface by ELISA, by fluorescence spectroscopy, molecular docking and molecular dynamics (MD). The data showed that C1q and Gal-3 had a pronounced affinity for protein-protein interaction and supramolecular binding, locating the binding sites within the globular domains of C1q (gC1q) and on the backside of the carbohydrate recognition domain (CRD) of Gal-3. Fluorescence spectroscopy gave quantitative assessment of the recognition with KD value of 0.04 μM. MD analysis showed that when the active AAs of the two proteins interacted, electrostatic attraction, aided by a large number of hydrogen bonds, was dominant for the stabilization of the complex. When the contact of C1q and Gal-3 was not limited to active residues, the complex between them was stabilized mainly by Van der Waals interactions and smaller in number but stronger hydrogen bonds. This is the first report analyzing the interaction of Gal-3 with C1q, which could open the way to new applications of this protein-protein complex.
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Affiliation(s)
- Gabriela Radulova
- Sofia University "St. Kliment Ohridski", Faculty of Biology, Bulgaria
| | | | - Ginka Cholakova
- Sofia University "St. Kliment Ohridski", Faculty of Biology, Bulgaria
| | - Stoyan Iliev
- Sofia University "St. Kliment Ohridski", Faculty of Chemistry and Pharmacy, Bulgaria
| | - Anela Ivanova
- Sofia University "St. Kliment Ohridski", Faculty of Chemistry and Pharmacy, Bulgaria
| | - Vanya Bogoeva
- Bulgarian Academy of Sciences, Institute of Molecular biology "Rumen Tsanev", Bulgaria
| | - Ivanka Tsacheva
- Sofia University "St. Kliment Ohridski", Faculty of Biology, Bulgaria.
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Mattos-Graner RO, Klein MI, Alves LA. The complement system as a key modulator of the oral microbiome in health and disease. Crit Rev Microbiol 2024; 50:138-167. [PMID: 36622855 DOI: 10.1080/1040841x.2022.2163614] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 12/22/2022] [Accepted: 12/23/2022] [Indexed: 01/10/2023]
Abstract
In this review, we address the interplay between the complement system and host microbiomes in health and disease, focussing on oral bacteria known to contribute to homeostasis or to promote dysbiosis associated with dental caries and periodontal diseases. Host proteins modulating complement activities in the oral environment and expression profiles of complement proteins in oral tissues were described. In addition, we highlight a sub-set of bacterial proteins involved in complement evasion and/or dysregulation previously characterized in pathogenic species (or strains), but further conserved among prototypical commensal species of the oral microbiome. Potential roles of these proteins in host-microbiome homeostasis and in the emergence of commensal strain lineages with increased virulence were also addressed. Finally, we provide examples of how commensal bacteria might exploit the complement system in competitive or cooperative interactions within the complex microbial communities of oral biofilms. These issues highlight the need for studies investigating the effects of the complement system on bacterial behaviour and competitiveness during their complex interactions within oral and extra-oral host sites.
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Affiliation(s)
- Renata O Mattos-Graner
- Department of Oral Diagnosis, Piracicaba Dental School, State University of Campinas (UNICAMP), Sao Paulo, Brazil
| | - Marlise I Klein
- Department of Oral Diagnosis, Piracicaba Dental School, State University of Campinas (UNICAMP), Sao Paulo, Brazil
| | - Lívia Araújo Alves
- Department of Oral Diagnosis, Piracicaba Dental School, State University of Campinas (UNICAMP), Sao Paulo, Brazil
- School of Dentistry, Cruzeiro do Sul University (UNICSUL), Sao Paulo, Brazil
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4
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Avdonin PP, Blinova MS, Generalova GA, Emirova KM, Avdonin PV. The Role of the Complement System in the Pathogenesis of Infectious Forms of Hemolytic Uremic Syndrome. Biomolecules 2023; 14:39. [PMID: 38254639 PMCID: PMC10813406 DOI: 10.3390/biom14010039] [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: 09/30/2023] [Revised: 11/24/2023] [Accepted: 12/18/2023] [Indexed: 01/24/2024] Open
Abstract
Hemolytic uremic syndrome (HUS) is an acute disease and the most common cause of childhood acute renal failure. HUS is characterized by a triad of symptoms: microangiopathic hemolytic anemia, thrombocytopenia, and acute kidney injury. In most of the cases, HUS occurs as a result of infection caused by Shiga toxin-producing microbes: hemorrhagic Escherichia coli and Shigella dysenteriae type 1. They account for up to 90% of all cases of HUS. The remaining 10% of cases grouped under the general term atypical HUS represent a heterogeneous group of diseases with similar clinical signs. Emerging evidence suggests that in addition to E. coli and S. dysenteriae type 1, a variety of bacterial and viral infections can cause the development of HUS. In particular, infectious diseases act as the main cause of aHUS recurrence. The pathogenesis of most cases of atypical HUS is based on congenital or acquired defects of complement system. This review presents summarized data from recent studies, suggesting that complement dysregulation is a key pathogenetic factor in various types of infection-induced HUS. Separate links in the complement system are considered, the damage of which during bacterial and viral infections can lead to complement hyperactivation following by microvascular endothelial injury and development of acute renal failure.
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Affiliation(s)
- Piotr P. Avdonin
- Koltzov Institute of Developmental Biology RAS, ul. Vavilova, 26, 119334 Moscow, Russia; (M.S.B.); (P.V.A.)
| | - Maria S. Blinova
- Koltzov Institute of Developmental Biology RAS, ul. Vavilova, 26, 119334 Moscow, Russia; (M.S.B.); (P.V.A.)
| | - Galina A. Generalova
- Saint Vladimir Moscow City Children’s Clinical Hospital, 107014 Moscow, Russia; (G.A.G.); (K.M.E.)
- Department of Pediatrics, A.I. Evdokimov Moscow State University of Medicine and Dentistry, 127473 Moscow, Russia
| | - Khadizha M. Emirova
- Saint Vladimir Moscow City Children’s Clinical Hospital, 107014 Moscow, Russia; (G.A.G.); (K.M.E.)
- Department of Pediatrics, A.I. Evdokimov Moscow State University of Medicine and Dentistry, 127473 Moscow, Russia
| | - Pavel V. Avdonin
- Koltzov Institute of Developmental Biology RAS, ul. Vavilova, 26, 119334 Moscow, Russia; (M.S.B.); (P.V.A.)
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5
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Carestia A, Godin LC, Jenne CN. Step up to the platelet: Role of platelets in inflammation and infection. Thromb Res 2023; 231:182-194. [PMID: 36307228 DOI: 10.1016/j.thromres.2022.10.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/28/2022] [Accepted: 10/03/2022] [Indexed: 11/18/2022]
Abstract
Platelets are anucleated cells derived from megakaryocytes that are primarily responsible for hemostasis. However, in recent years, these cytoplasts have become increasingly recognized as immune cells, able to detect, interact with, and kill pathogens. As platelets are involved in both immunity and coagulation, they have a central role in immunothrombosis, a physiological process in which immune cells induce the formation of microthrombi to both prevent the spread of pathogens, and to help facilitate clearance. In this review, we will highlight the role of platelets as key players in the inflammatory and innate immune response against bacterial and viral infection, including direct and indirect interactions with pathogens and other immune cells.
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Affiliation(s)
- Agostina Carestia
- Department of Microbiology, Immunology and Infectious Diseases, Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Canada.
| | - Laura C Godin
- Department of Microbiology, Immunology and Infectious Diseases, Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Canada.
| | - Craig N Jenne
- Department of Microbiology, Immunology and Infectious Diseases, Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Canada.
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Xing Y, Zhang D, Fang L, Wang J, Liu C, Wu D, Liu X, Wang X, Min W. Complement in Human Brain Health: Potential of Dietary Food in Relation to Neurodegenerative Diseases. Foods 2023; 12:3580. [PMID: 37835232 PMCID: PMC10572247 DOI: 10.3390/foods12193580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 09/21/2023] [Accepted: 09/25/2023] [Indexed: 10/15/2023] Open
Abstract
The complement pathway is a major component of the innate immune system, which is critical for recognizing and clearing pathogens that rapidly react to defend the body against external pathogens. Many components of this pathway are expressed throughout the brain and play a beneficial role in synaptic pruning in the developing central nervous system (CNS). However, excessive complement-mediated synaptic pruning in the aging or injured brain may play a contributing role in a wide range of neurodegenerative diseases. Complement Component 1q (C1q), an initiating recognition molecule of the classical complement pathway, can interact with a variety of ligands and perform a range of functions in physiological and pathophysiological conditions of the CNS. This review considers the function and immunomodulatory mechanisms of C1q; the emerging role of C1q on synaptic pruning in developing, aging, or pathological CNS; the relevance of C1q; the complement pathway to neurodegenerative diseases; and, finally, it summarizes the foods with beneficial effects in neurodegenerative diseases via C1q and complement pathway and highlights the need for further research to clarify these roles. This paper aims to provide references for the subsequent study of food functions related to C1q, complement, neurodegenerative diseases, and human health.
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Affiliation(s)
- Yihang Xing
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China; (Y.X.); (D.Z.); (L.F.); (J.W.); (C.L.); (D.W.); (X.L.)
| | - Dingwen Zhang
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China; (Y.X.); (D.Z.); (L.F.); (J.W.); (C.L.); (D.W.); (X.L.)
| | - Li Fang
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China; (Y.X.); (D.Z.); (L.F.); (J.W.); (C.L.); (D.W.); (X.L.)
| | - Ji Wang
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China; (Y.X.); (D.Z.); (L.F.); (J.W.); (C.L.); (D.W.); (X.L.)
| | - Chunlei Liu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China; (Y.X.); (D.Z.); (L.F.); (J.W.); (C.L.); (D.W.); (X.L.)
| | - Dan Wu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China; (Y.X.); (D.Z.); (L.F.); (J.W.); (C.L.); (D.W.); (X.L.)
| | - Xiaoting Liu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China; (Y.X.); (D.Z.); (L.F.); (J.W.); (C.L.); (D.W.); (X.L.)
| | - Xiyan Wang
- College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China; (Y.X.); (D.Z.); (L.F.); (J.W.); (C.L.); (D.W.); (X.L.)
| | - Weihong Min
- College of Food and Health, Zhejiang A&F University, Hangzhou 311300, China
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7
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Yang LX, Zhang CT, Yang MY, Zhang XH, Liu HC, Luo CH, Jiang Y, Wang ZM, Yang ZY, Shi ZP, Yang YC, Wei RQ, Zhou L, Mi J, Zhou AW, Yao ZR, Xia L, Yan JS, Lu Y. C1Q labels a highly aggressive macrophage-like leukemia population indicating extramedullary infiltration and relapse. Blood 2023; 141:766-786. [PMID: 36322939 PMCID: PMC10651790 DOI: 10.1182/blood.2022017046] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 09/22/2022] [Accepted: 10/11/2022] [Indexed: 11/05/2022] Open
Abstract
Extramedullary infiltration (EMI) is a concomitant manifestation that may indicate poor outcome of acute myeloid leukemia (AML). The underlying mechanism remains poorly understood and therapeutic options are limited. Here, we employed single-cell RNA sequencing on bone marrow (BM) and EMI samples from a patient with AML presenting pervasive leukemia cutis. A complement C1Q+ macrophage-like leukemia subset, which was enriched within cutis and existed in BM before EMI manifestations, was identified and further verified in multiple patients with AML. Genomic and transcriptional profiling disclosed mutation and gene expression signatures of patients with EMI that expressed high levels of C1Q. RNA sequencing and quantitative proteomic analysis revealed expression dynamics of C1Q from primary to relapse. Univariate and multivariate analysis demonstrated adverse prognosis significance of C1Q expression. Mechanistically, C1Q expression, which was modulated by transcription factor MAF BZIP transcription factor B, endowed leukemia cells with tissue infiltration ability, which could establish prominent cutaneous or gastrointestinal EMI nodules in patient-derived xenograft and cell line-derived xenograft models. Fibroblasts attracted migration of the C1Q+ leukemia cells through C1Q-globular C1Q receptor recognition and subsequent stimulation of transforming growth factor β1. This cell-to-cell communication also contributed to survival of C1Q+ leukemia cells under chemotherapy stress. Thus, C1Q served as a marker for AML with adverse prognosis, orchestrating cancer infiltration pathways through communicating with fibroblasts and represents a compelling therapeutic target for EMI.
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Affiliation(s)
- Li-Xue Yang
- Institute of Dermatology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Cheng-Tao Zhang
- Department of Hematology, Liaoning Key Laboratory of Hematopoietic Stem Cell Transplantation and Translational Medicine, Liaoning Medical Center for Hematopoietic Stem Cell Transplantation, Dalian Key Laboratory of Hematology, Diamond Bay Institute of Hematology, The Second Hospital of Dalian Medical University, Dalian, China
| | - Meng-Ying Yang
- Institute of Dermatology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xue-Hong Zhang
- Center of Genome and Personalized Medicine, Institute of Cancer Stem Cell, Dalian Medical University, Dalian, China
| | - Hong-Chen Liu
- Department of Hematology, Liaoning Key Laboratory of Hematopoietic Stem Cell Transplantation and Translational Medicine, Liaoning Medical Center for Hematopoietic Stem Cell Transplantation, Dalian Key Laboratory of Hematology, Diamond Bay Institute of Hematology, The Second Hospital of Dalian Medical University, Dalian, China
| | - Chen-Hui Luo
- Institute of Dermatology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yue Jiang
- Department of Hematology, Liaoning Key Laboratory of Hematopoietic Stem Cell Transplantation and Translational Medicine, Liaoning Medical Center for Hematopoietic Stem Cell Transplantation, Dalian Key Laboratory of Hematology, Diamond Bay Institute of Hematology, The Second Hospital of Dalian Medical University, Dalian, China
| | - Zhang-Man Wang
- Department of Hematology, Liaoning Key Laboratory of Hematopoietic Stem Cell Transplantation and Translational Medicine, Liaoning Medical Center for Hematopoietic Stem Cell Transplantation, Dalian Key Laboratory of Hematology, Diamond Bay Institute of Hematology, The Second Hospital of Dalian Medical University, Dalian, China
| | - Zhong-Yin Yang
- Department of General Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai Institute of Digestive Surgery, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Zhao-Peng Shi
- Key Laboratory of Cell Differentiation and Apoptosis of the Chinese Ministry of Education, Basic Medical Institute, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yi-Ci Yang
- Department of Hematology, Liaoning Key Laboratory of Hematopoietic Stem Cell Transplantation and Translational Medicine, Liaoning Medical Center for Hematopoietic Stem Cell Transplantation, Dalian Key Laboratory of Hematology, Diamond Bay Institute of Hematology, The Second Hospital of Dalian Medical University, Dalian, China
| | - Ruo-Qu Wei
- Institute of Dermatology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Li Zhou
- Key Laboratory of Cell Differentiation and Apoptosis of the Chinese Ministry of Education, Basic Medical Institute, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jun Mi
- Key Laboratory of Cell Differentiation and Apoptosis of the Chinese Ministry of Education, Basic Medical Institute, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Ai-Wu Zhou
- Key Laboratory of Cell Differentiation and Apoptosis of the Chinese Ministry of Education, Basic Medical Institute, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Zhi-Rong Yao
- Institute of Dermatology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Li Xia
- Key Laboratory of Cell Differentiation and Apoptosis of the Chinese Ministry of Education, Basic Medical Institute, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jin-Song Yan
- Department of Hematology, Liaoning Key Laboratory of Hematopoietic Stem Cell Transplantation and Translational Medicine, Liaoning Medical Center for Hematopoietic Stem Cell Transplantation, Dalian Key Laboratory of Hematology, Diamond Bay Institute of Hematology, The Second Hospital of Dalian Medical University, Dalian, China
| | - Ying Lu
- Institute of Dermatology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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Xian S, Chen L, Yan Y, Chen J, Yu G, Shao Y, Zhan B, Wang Y, Zhao L. Echinococcus multilocularis Calreticulin Interferes with C1q-Mediated Complement Activation. Trop Med Infect Dis 2023; 8:tropicalmed8010047. [PMID: 36668954 PMCID: PMC9864966 DOI: 10.3390/tropicalmed8010047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 01/04/2023] [Accepted: 01/04/2023] [Indexed: 01/11/2023] Open
Abstract
As a zoonotic disease caused by Echinococcus multilocularis larvae, alveolar echinococcosis (AE) is one of the most severe forms of parasitic infection. Over a long evolutional process E. multilocularis has developed complex strategies to escape host immune attack and survive within a host. However, the mechanisms underlying immune evasion remain unclear. Here we investigated the binding activity of E. multilocularis calreticulin (EmCRT), a highly conserved Ca2+-binding protein, to human complement C1q and its ability to inhibit classical complement activation. ELISA, Far Western blotting and immunoprecipitation results demonstrated that both recombinant and natural EmCRTs bound to human C1q, and the interaction of recombinant EmCRT (rEmCRT) inhibited C1q binding to IgM. Consequently, rEmCRT inhibited classical complement activation manifested as decreasing C4/C3 depositions and antibody-sensitized cell lysis. Moreover, rEmCRT binding to C1q suppressed C1q binding to human mast cell, HMC-1, resulting in reduced C1q-induced mast cell chemotaxis. According to these results, E. multilocularis expresses EmCRT to interfere with C1q-mediated complement activation and C1q-dependent non-complement activation of immune cells, possibly as an immune evasion strategy of the parasite in the host.
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Affiliation(s)
- Siqi Xian
- Department of Pathogenic Biology, School of Basic Medical Sciences and Forensic Medicine, Baotou Medical College, Baotou 014040, China
| | - Lujuan Chen
- Department of Pathogenic Biology, School of Basic Medical Sciences and Forensic Medicine, Baotou Medical College, Baotou 014040, China
| | - Yan Yan
- Department of Pathogenic Biology, School of Basic Medical Sciences and Forensic Medicine, Baotou Medical College, Baotou 014040, China
| | - Jianfang Chen
- Department of Pathogenic Biology, School of Basic Medical Sciences and Forensic Medicine, Baotou Medical College, Baotou 014040, China
| | - Guixia Yu
- Department of Pathogenic Biology, School of Basic Medical Sciences and Forensic Medicine, Baotou Medical College, Baotou 014040, China
| | - Yuxiao Shao
- Department of Pathogenic Biology, School of Basic Medical Sciences and Forensic Medicine, Baotou Medical College, Baotou 014040, China
| | - Bin Zhan
- Department of Pediatrics, National School of Tropical Medicine, Baylor College of Medicine, Houston, TX 77030, USA
| | - Yanhai Wang
- Parasitology Research Laboratory, School of Life Sciences, Xiamen University, Xiamen 361102, China
- Correspondence: (Y.W.); (L.Z.)
| | - Limei Zhao
- Department of Pathogenic Biology, School of Basic Medical Sciences and Forensic Medicine, Baotou Medical College, Baotou 014040, China
- Correspondence: (Y.W.); (L.Z.)
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9
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Membrane Bound CRT Fragment Accelerates Tumor Growth of Melanoma B16 Cell In Vivo through Promoting M2 Polarization via TLR4. J Immunol Res 2022; 2022:4626813. [PMID: 36249426 PMCID: PMC9560857 DOI: 10.1155/2022/4626813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 09/09/2022] [Indexed: 11/17/2022] Open
Abstract
Calreticulin (CRT) is a major calcium-binding luminal resident protein on the endoplasmic reticulum that can also be released extracellular as well as anchored on surface of cells. Previously, we demonstrated that soluble recombinant CRT fragment 39-272 (CRT/39-272) exhibited potent immunostimulatory effects as well as immunoregulation effects on immune cells. Here, we constructed stable B16 melanoma cell lines expressing recombinant CRT/39-272 on the membrane (B16-tmCRT/39-272) to investigate the roles of cell surface CRT on tumor progression. We found that B16-tmCRT/39-272 cells subcutaneously inoculated into C57BL/6 mice exhibited stronger tumorigenicity than the B16-EGFP control cells. The tumor associated macrophages infiltrated in tumors were mainly M2 phenotype. Regulatory T cells (Tregs) were also expanded more in bearing mice. Consistent with the in vivo results, B16-tmCRT/39-272 promoted macrophage polarization toward F4/80+CD206+ M2 macrophages and promoted transforming growth factor beta (TGF-β) secretion in vitro, which could promote naïve CD4+T cell differentiation into Tregs. These results imply that the tmCRT/39-272 could accelerate tumor development by enhancing M2 macrophage polarization to induce TGF-β secretion, and then promoted Treg differentiation in the tumor microenvironment. Our data may provide useful clues for better understanding of the potentiating roles of CRT in tumorigenesis.
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10
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Eguchi A, Iwasa M, Sugimoto R, Tempaku M, Yoshikawa K, Yoshizawa N, Povero D, Sugimoto K, Hasegawa H, Takei Y, Nakagawa H. Complement complex 1 subunit q-mediated hepatic stellate cell activation with connective tissue growth factor elevation is a prognostic factor for survival in rat and human chronic liver diseases. Hepatol Commun 2022; 6:3515-3527. [PMID: 36199236 PMCID: PMC9701491 DOI: 10.1002/hep4.2097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 08/23/2022] [Accepted: 09/01/2022] [Indexed: 01/21/2023] Open
Abstract
Complement complex 1 subunit q (C1q) has multiple functions, including cell migration, in addition to its traditional complement-activating effect. Research shows C1q is a ligand for frizzled receptors (FZDs). FZD-induced yes-associated protein (YAP)/transcriptional co-activator with PDZ-binding motif (TAZ) alternate Wnt signaling activation induces connective tissue growth factor (CTGF) production and hepatic stellate cell (HSC) activation. However, no study exists in which C1q directly induces CTGF in HSCs. Here, we investigated the role of C1q in HSC activation. Human HSCs (LX2) were incubated with C1q to assess HSC activation. C1q and fibrotic markers were assessed using immunohistochemistry, immunoblotting, and quantitative reverse-transcription polymerase chain reaction in cirrhotic rats administered CCl4 for 21 weeks. Serum C1q, liver function, and fibrosis score were measured in 91 patients with chronic liver disease. The correlations between serum C1q and liver function, fibrosis score, and survival prognosis were examined. C1q-activated LX2s showed morphologic changes, up-regulation of CTGF, tissue inhibitors of metalloproteinases (TIMP-1), and alternate Wnt signal genes FZD2, TAZ, and cysteine-rich angiogenic inducer 61 (Cyr61). Cirrhotic rat liver C1q expression correlated with the Azan-positive area and expression of CTGF, TIMP-1, hyaluronan synthase (HAS)1, HAS3, and CD44. Expression of C1q protein and C1q, CTGF, and TIMP-1 genes were higher in deceased cirrhotic rat livers compared to surviving rats. Human serum C1q levels increased in liver cirrhosis compared to chronic hepatitis and correlated with liver fibrosis and functional markers. Ten patients suffered liver-related death over a 66-month observation period. The C1q cut-off value (11 mg/dl) showed patients with serum values < 11 mg/dl had longer rates of survival compared to C1q ≥ 11 mg/dl. Conclusion: C1q-mediated HSC activation in liver fibrosis is associated with CTGF elevation. Additionally, serum C1q may be diagnostic for survival in human chronic liver diseases.
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Affiliation(s)
- Akiko Eguchi
- Department of Gastroenterology and Hepatology, School of MedicineMie UniversityTsuJapan
| | - Motoh Iwasa
- Department of Gastroenterology and Hepatology, School of MedicineMie UniversityTsuJapan
| | - Ryosuke Sugimoto
- Department of Gastroenterology and Hepatology, School of MedicineMie UniversityTsuJapan
| | - Mina Tempaku
- Department of Gastroenterology and Hepatology, School of MedicineMie UniversityTsuJapan
| | - Kyoko Yoshikawa
- Department of Gastroenterology and Hepatology, School of MedicineMie UniversityTsuJapan
| | - Naohiko Yoshizawa
- Department of Gastroenterology and Hepatology, School of MedicineMie UniversityTsuJapan
| | - Davide Povero
- Department of Biochemistry and Molecular BiologyMayo ClinicRochesterMinnesotaUSA
| | - Kazushi Sugimoto
- Department of Gastroenterology and Hepatology, School of MedicineMie UniversityTsuJapan
| | - Hiroshi Hasegawa
- Department of Gastroenterology and Hepatology, School of MedicineMie UniversityTsuJapan
| | - Yoshiyuki Takei
- Department of Gastroenterology and Hepatology, School of MedicineMie UniversityTsuJapan
| | - Hayato Nakagawa
- Department of Gastroenterology and Hepatology, School of MedicineMie UniversityTsuJapan
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11
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Pryzdial ELG, Leatherdale A, Conway EM. Coagulation and complement: Key innate defense participants in a seamless web. Front Immunol 2022; 13:918775. [PMID: 36016942 PMCID: PMC9398469 DOI: 10.3389/fimmu.2022.918775] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 07/06/2022] [Indexed: 12/30/2022] Open
Abstract
In 1969, Dr. Oscar Ratnoff, a pioneer in delineating the mechanisms by which coagulation is activated and complement is regulated, wrote, “In the study of biological processes, the accumulation of information is often accelerated by a narrow point of view. The fastest way to investigate the body’s defenses against injury is to look individually at such isolated questions as how the blood clots or how complement works. We must constantly remind ourselves that such distinctions are man-made. In life, as in the legal cliché, the devices through which the body protects itself form a seamless web, unwrinkled by our artificialities.” Our aim in this review, is to highlight the critical molecular and cellular interactions between coagulation and complement, and how these two major component proteolytic pathways contribute to the seamless web of innate mechanisms that the body uses to protect itself from injury, invading pathogens and foreign surfaces.
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Affiliation(s)
- Edward L. G. Pryzdial
- Centre for Blood Research, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
- Canadian Blood Services, Medical Affairs and Innovation, Vancouver, BC, Canada
- *Correspondence: Edward L. G. Pryzdial, ; Edward M. Conway,
| | - Alexander Leatherdale
- Centre for Blood Research, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
- Division of Hematology, Department of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Edward M. Conway
- Centre for Blood Research, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
- Canadian Blood Services, Medical Affairs and Innovation, Vancouver, BC, Canada
- Division of Hematology, Department of Medicine, University of British Columbia, Vancouver, BC, Canada
- *Correspondence: Edward L. G. Pryzdial, ; Edward M. Conway,
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12
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Schulz K, Trendelenburg M. C1q as a target molecule to treat human disease: What do mouse studies teach us? Front Immunol 2022; 13:958273. [PMID: 35990646 PMCID: PMC9385197 DOI: 10.3389/fimmu.2022.958273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 06/24/2022] [Indexed: 11/17/2022] Open
Abstract
The complement system is a field of growing interest for pharmacological intervention. Complement protein C1q, the pattern recognition molecule at the start of the classical pathway of the complement cascade, is a versatile molecule with additional non-canonical actions affecting numerous cellular processes. Based on observations made in patients with hereditary C1q deficiency, C1q is protective against systemic autoimmunity and bacterial infections. Accordingly, C1q deficient mice reproduce this phenotype with susceptibility to autoimmunity and infections. At the same time, beneficial effects of C1q deficiency on disease entities such as neurodegenerative diseases have also been described in murine disease models. This systematic review provides an overview of all currently available literature on the C1q knockout mouse in disease models to identify potential target diseases for treatment strategies focusing on C1q, and discusses potential side-effects when depleting and/or inhibiting C1q.
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Affiliation(s)
- Kristina Schulz
- Laboratory of Clinical Immunology, Department of Biomedicine, University of Basel, Basel, Switzerland
- Division of Internal Medicine, University Hospital Basel, Basel, Switzerland
- *Correspondence: Kristina Schulz,
| | - Marten Trendelenburg
- Laboratory of Clinical Immunology, Department of Biomedicine, University of Basel, Basel, Switzerland
- Division of Internal Medicine, University Hospital Basel, Basel, Switzerland
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13
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Black Ginseng Ameliorates Cellular Senescence via p53-p21/p16 Pathway in Aged Mice. BIOLOGY 2022; 11:biology11081108. [PMID: 35892965 PMCID: PMC9331701 DOI: 10.3390/biology11081108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 04/29/2022] [Accepted: 07/21/2022] [Indexed: 11/23/2022]
Abstract
Simple Summary The goal of this study was to examine if BG impacts the aging process, specifically cellular senescence, using in vitro and aged mouse models. Primary mouse embryonic fibroblasts (MEFs) and aged mice (18 months old) showed that BG supplementation retarded cellular senescence. Of note, BG-supplemented aged mice had remarkedly altered hepatic genes involved in the aging process as it caused less activation of the canonical senescence pathway. These observations demonstrated that BG positively impacts the age-related phenotype by controlling the expression of cellular senescence in the liver and other metabolic organs such as skeletal muscle and white adipose tissue. Abstract Cellular senescence, one of the hallmarks of aging, refers to permanent cell cycle arrest and is accelerated during the aging process. Black ginseng (BG), prepared by a repeated steaming and drying process nine times from fresh ginseng (Panax ginseng C.A. Meyer), is garnering attention for herbal medicine due to its physiological benefits against reactive oxygen species (ROS), inflammation, and oncogenesis, which are common cues to induce aging. However, which key nodules in the cellular senescence process are regulated by BG supplementation has not been elucidated yet. In this study, we investigated the effects of BG on cellular senescence using in vitro and aged mouse models. BG-treated primary mouse embryonic fibroblasts (MEFs) in which senescence was triggered by ionizing radiation (IR) expressed less senescence-associated β-galactosidase (SA-β-gal)-positive stained cells. In our aged mice (18 months old) study, BG supplementation (300 mg/kg) for 4 weeks altered hepatic genes involved in the aging process. Furthermore, we found BG supplementation downregulated age-related inflammatory genes, especially in the complement system. Based on this observation, we demonstrated that BG supplementation led to less activation of the canonical senescence pathway, p53-dependent p21 and p16, in multiple metabolic organs such as liver, skeletal muscle and white adipose tissue. Thus, we suggest that BG is a potential senolytic candidate that retards cellular senescence.
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Alwahaibi N, Al-Khazimi O, Al-Riyami M. Histopathological Spectrum of Glomerular Diseases in Oman: A Five-year Study. SAUDI JOURNAL OF KIDNEY DISEASES AND TRANSPLANTATION 2022; 33:425-431. [PMID: 37843144 DOI: 10.4103/1319-2442.385966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2023] Open
Abstract
Glomerular diseases are numerous and difficult to diagnose without a renal biopsy. Despite the development of many radiological and laboratory tests and the use of up-to-date equipment, renal biopsies are the best method for diagnosing renal diseases. This study aimed to analyze the histopathological patterns of glomerular diseases in Oman. Light microscopy and immunofluorescence markers such as immunoglobulin (Ig) G, IgA, IgM, C3, and C1q, which are routinely used to evaluate the presence of immune deposits, were analyzed. In total, 596 renal biopsies were retrospectively analyzed at the Sultan Qaboos University Hospital for a 5-year period (2011-2015). Males represented 45.8%, and the median age was 29.7 years. Primary glomerular diseases were more common in males (54%); secondary glomerular diseases were more prevalent among females (76.7%). The prevalence of primary glomerular diseases (65.6%) was more dominant than secondary glomerular diseases (34.4%). Lupus nephritis (LN) was the most common secondary glomerular disease and was the most prevalent among all biopsies (29.9%). Focal segmental glomerulosclerosis (FSGS), membranous glomerulopathy, IgA nephropathy, minimal change disease, and diffuse global glomerulosclerosis were the most common primary glomerular diseases, accounting for 21.5%, 9.1%, 8.6%, 6.4%, and 6.2%, respectively. The level of the fluorescein isothiocyanate C1q marker in the top five renal diseases was low compared with other markers. In conclusion, in Oman, LN was the most common glomerular disease encountered and FSGS was the most common primary glomerular disease. The findings suggest that the localization of glomerular C1q in renal diseases needs to be investigated further.
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Affiliation(s)
- Nasar Alwahaibi
- Department of Biomedical Science, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Owias Al-Khazimi
- Department of Biomedical Science, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
| | - Marna Al-Riyami
- Department of Pathology, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
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15
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Li S, Zhu Y, Wei C, Li C, Chen W, Jiang S, Yuan D, Xu R. Identification of Molecular Correlations Between DHRS4 and Progressive Neurodegeneration in Amyotrophic Lateral Sclerosis By Gene Co-Expression Network Analysis. Front Immunol 2022; 13:874978. [PMID: 35479082 PMCID: PMC9035787 DOI: 10.3389/fimmu.2022.874978] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Accepted: 03/15/2022] [Indexed: 12/11/2022] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disease, and its candidate biomarkers have not yet been fully elucidated in previous studies. Therefore, with the present study, we aim to define and verify effective biomarkers of ALS by bioinformatics. Here, we employed differentially expressed gene (DEG) analysis, weighted gene co-expression network analysis (WGCNA), enrichment analysis, immune infiltration analysis, and protein-protein interaction (PPI) to identify biomarkers of ALS. To validate the biomarkers, we isolated the lumbar spinal cord from mice and characterized them using Western blotting and immunofluorescence. The results showed that Dhrs4 expression in the spinal cord was upregulated with the progression of SOD1G93A mice, and the upregulation of DHRS4 and its synergistic DHRS3 might be primarily associated with the activation of the complement cascade in the immune system (C1QA, C1QB, C1QC, C3, and ITGB2), which might be a novel mechanism that induces spinal neurodegeneration in ALS. We propose that DHRS4 and its synergistic DHRS3 are promising molecular markers for detecting ALS progression.
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Affiliation(s)
| | | | | | | | | | | | | | - Renshi Xu
- Department of Neurology, Jiangxi Provincial People’s Hospital, Affiliated People’s Hospital of Nanchang University, Nanchang, China
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16
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Madeshiya AK, Whitehead C, Tripathi A, Pillai A. C1q deletion exacerbates stress-induced learned helplessness behavior and induces neuroinflammation in mice. Transl Psychiatry 2022; 12:50. [PMID: 35105860 PMCID: PMC8807734 DOI: 10.1038/s41398-022-01794-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 12/10/2021] [Accepted: 01/04/2022] [Indexed: 12/12/2022] Open
Abstract
Increased levels of pro-inflammatory cytokines have been reported in postmortem brain samples and in the blood of depressed subjects. However, the inflammatory pathways that lead to depressive-like symptoms are not well understood. Using the learned helplessness (LH) model of depression, we examined the role of C1q, the initiator of classical complement pathway in mediating stress-induced depressive-like behavior in mice. We observed no significant changes in social behavior, despair behavior, spatial memory, and aggressive behavior between the wild type (WT) and C1q knockout (KO) mice. However, C1q deletion exacerbated the inescapable electric foot shock-induced learned helplessness behavior in mice. We found significant reductions in C1q mRNA levels in the prefrontal cortex (PFC) of WT helpless mice as compared to the naïve mice. Increased levels of pro-inflammatory cytokines were found in the PFC of C1q KO mice. These findings suggest that classical complement pathway-mediated learned helplessness behavior is accompanied by neuroinflammatory changes under stressful conditions.
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Affiliation(s)
- Amit Kumar Madeshiya
- grid.267308.80000 0000 9206 2401Pathophysiology of Neuropsychiatric Disorders Program, Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX USA ,grid.410427.40000 0001 2284 9329Department of Psychiatry and Health Behavior, Medical College of Georgia, Augusta University, Augusta, GA USA
| | - Carl Whitehead
- grid.410427.40000 0001 2284 9329Department of Psychiatry and Health Behavior, Medical College of Georgia, Augusta University, Augusta, GA USA ,grid.413830.d0000 0004 0419 3970Research and Development, Charlie Norwood VA Medical Center, Augusta, GA USA
| | - Ashutosh Tripathi
- grid.267308.80000 0000 9206 2401Pathophysiology of Neuropsychiatric Disorders Program, Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX USA ,grid.410427.40000 0001 2284 9329Department of Psychiatry and Health Behavior, Medical College of Georgia, Augusta University, Augusta, GA USA
| | - Anilkumar Pillai
- Pathophysiology of Neuropsychiatric Disorders Program, Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA. .,Department of Psychiatry and Health Behavior, Medical College of Georgia, Augusta University, Augusta, GA, USA. .,Research and Development, Charlie Norwood VA Medical Center, Augusta, GA, USA.
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17
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Dasdemir S, Yildiz M, Celebi D, Sahin S, Aliyeva N, Haslak F, Gunalp A, Adrovic A, Barut K, Artim Esen B, Kasapcopur O. Genetic screening of early-onset patients with systemic lupus erythematosus by a targeted next-generation sequencing gene panel. Lupus 2022; 31:330-337. [PMID: 35086391 DOI: 10.1177/09612033221076733] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
OBJECTIVE In this study, we aimed to screen 31 genes (C1QA, C1QB, C1QC, C1R, C1S, C2, C3, TREX1, RNASEH2A, RNASEH2B, RNASEH2C, SAMHD1, ADAR, DNASE1, DNASE1L3, PRKCD, ACP5, SLC7A7, IFIH1, TMEM173, ISG15, CYBB, FAS, FASLG, KRAS, NRAS, MAN2B1, PEPD, PTPN11, RAG2, and SHOC2), that we have categorized under the umbrella term "monogenic lupus" using a targeted next-generation sequencing (NGS) panel in 24 individuals with early-onset (≤10 years of age) systemic lupus erythematosus (SLE) and in 24 patients with late-onset (>10 years of age) disease. METHODS A total of 48 SLE patients (24 with disease onset ≤10 years of age and 24 with disease onset >10 years of age) were included. Patients with late-onset disease have been used as patient controls. Sequencing was carried out using 400 bp kit on the Ion S5 system. RESULTS Among the 48 patients, three had one pathogenic variant and 45 patients had at least one rare variant classified as benign, likely benign or variant of unknown significance (VUS). In all three patients with a pathogenic variant, the onset of disease was before 10 years of age. Two patients (they were siblings) carried C1QA homozygote pathogenic allele (p.Gln208Ter, rs121909581), and one patient carried PEPD heterozygote pathogenic allele (p.Arg184Gln, rs121917722). CONCLUSION We demonstrated a pathogenic variant in our target gene panel with a frequency of 9.52% in patients with a disease onset ≤10 years of age. All patients with early-onset SLE phenotype, irrespective of a positive family history for SLE or parental consanguinity, should be scanned for a single-gene defect by a targeted gene panel sequencing. With the discovery of many single-gene defects and ongoing efforts to identify novel genes in SLE, similar gene panels including even more genes will possibly become more necessary and practical in the future.
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Affiliation(s)
- Selcuk Dasdemir
- Department of Medical Biology, Istanbul Faculty of Medicine, 64041Istanbul University, Istanbul, Turkey
| | - Mehmet Yildiz
- Department of Pediatric Rheumatology, Cerrahpasa Medical Faculty, 532719Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Damla Celebi
- Department of Medical Biology, Istanbul Faculty of Medicine, 64041Istanbul University, Istanbul, Turkey
| | - Sezgin Sahin
- Department of Pediatric Rheumatology, Cerrahpasa Medical Faculty, 532719Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Numune Aliyeva
- Department of Internal Medicine, Istanbul Faculty of Medicine, Division of Rheumatology, 64041Istanbul University, Istanbul, Turkey
| | - Fatih Haslak
- Department of Pediatric Rheumatology, Cerrahpasa Medical Faculty, 532719Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Aybuke Gunalp
- Department of Pediatric Rheumatology, Cerrahpasa Medical Faculty, 532719Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Amra Adrovic
- Department of Pediatric Rheumatology, Cerrahpasa Medical Faculty, 532719Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Kenan Barut
- Department of Pediatric Rheumatology, Cerrahpasa Medical Faculty, 532719Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Bahar Artim Esen
- Department of Internal Medicine, Istanbul Faculty of Medicine, Division of Rheumatology, 64041Istanbul University, Istanbul, Turkey
| | - Ozgur Kasapcopur
- Department of Pediatric Rheumatology, Cerrahpasa Medical Faculty, 532719Istanbul University-Cerrahpasa, Istanbul, Turkey
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18
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Kosturkova MB, Mihaylova GM, Shivacheva TK, Radanova MA. Association of C1q gene cluster variants with rheumatoid arthritis: a pilot study. Rheumatol Int 2022; 42:1073-1083. [PMID: 35024943 DOI: 10.1007/s00296-022-05089-1] [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: 10/26/2021] [Accepted: 12/31/2021] [Indexed: 11/25/2022]
Abstract
Single-nucleotide polymorphisms (SNPs) in C1q gene cluster were previously linked to autoimmunity and SLE, but data are scarce for their association with RA. In the present study, we evaluated associations of five SNPs (rs665691, rs682658, rs172378, rs292001 and rs294179) in the C1q genetic region with RA and some of its clinical and immunologic characteristics. Fifty-eight RA patients and 67 age- and gender-matched healthy controls, all Caucasian, participated in the study. They were genotyped for the five SNPs using TaqMan allelic discrimination assay, and their C1q levels were estimated by ELISA. Rheumatoid factor and anti-citrullinated peptide antibodies were measured (using latex agglutination and ELISA resp.) in the RA patients' group and relevant clinical information was collected. RA patients and healthy controls had similar frequencies of alleles and genotypes of rs665691, rs682658 and rs294179. Minor G-allele and GG genotype of rs172378 were associated with RA (OR = 2.80; 95% CI 1.62-4.81; p = 0.0002 and OR = 5.01; 95% CI 1.55-16.24; p = 0.007, resp.), as well as AA genotype of rs292001 (OR = 3.23; 95% CI 1.15-9.08; p = 0.026). C1q levels were significantly lower (still normal) in RA patients' group compared to healthy volunteers: 89 µg/ml (68-121) vs 114 µg/ml (60-169), p < 0.0001. Significant association was established between rs172378 and rs292001 and RA, in contrast to rs665691, rs682658 and rs294179. RA patients had lower C1q levels than healthy controls. Our findings correspond to the scientific knowledge so far and add additional clarity from a Bulgarian cohort.
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Affiliation(s)
- Mariya Blagoeva Kosturkova
- Department of Propaedeutics of Internal Diseases, Medical University, #1 H. Smirnenski blvd, fl. 13, 9002, Varna, Bulgaria. .,Clinic of Internal Disease, UMHAT "St. Marina", Varna, Bulgaria.
| | - Galya Mihaylova Mihaylova
- Department of Biochemistry, Molecular Medicine and Nutrigenomics, Medical University, Varna, Bulgaria
| | - Tanya Kirilova Shivacheva
- Clinic of Rheumatology, UMHAT "St. Marina", First Department of Internal Medicine, Medical University, Varna, Bulgaria
| | - Maria Atanasova Radanova
- Department of Biochemistry, Molecular Medicine and Nutrigenomics, Medical University, Varna, Bulgaria
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Circulating C1q levels in health and disease, more than just a biomarker. Mol Immunol 2021; 140:206-216. [PMID: 34735869 DOI: 10.1016/j.molimm.2021.10.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 10/03/2021] [Accepted: 10/11/2021] [Indexed: 12/21/2022]
Abstract
C1q is the recognition molecule of the classical pathway of the complement system. By binding to its targets, such as antigen-bound immunoglobulins or C-reactive protein, C1q contributes to the innate defense against infections. However, C1q also plays several other roles beyond its traditional role in complement activation. Circulating levels of C1q are determined in routine diagnostics as biomarker in several diseases. Decreased C1q levels are present in several autoimmune conditions. The decreased levels reflect the consumption of C1q by complement activation and serves as a biomarker for disease activity. In contrast, increased C1q levels are present in infectious and inflammatory diseases and may serve as a diagnostic biomarker. The increased levels of C1q are still incompletely understood but are suggested to modulate the adaptive immune response as C1q is known to impact on the maturation status of antigen-presenting cells and C1q impacts directly on T cells leading to decreased T-cell activity in high C1q conditions. In this review, we provide a comprehensive overview of the current literature on circulating levels of C1q in health and disease, and discuss how C1q can both protect against infections as well as maintain tolerance by regulating adaptive immunity.
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20
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Hayuningtyas RA, Han M, Choi S, Kwak MS, Park IH, Lee JH, Choi JE, Kim DK, Son M, Shin JS. The collagen structure of C1q induces wound healing by engaging discoidin domain receptor 2. Mol Med 2021; 27:125. [PMID: 34602056 PMCID: PMC8489103 DOI: 10.1186/s10020-021-00388-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 09/24/2021] [Indexed: 01/01/2023] Open
Abstract
Background C1q has been reported to reveal complement-independent roles in immune and non-immune cells. C1q binds to its specific receptors to regulate distinct functions that rely on the environment and cell types. Discoidin domain receptor 2 (DDR2) is activated by collagen and functions in wound healing by controlling matrix metalloproteinase (MMP) expression. Since C1q exhibits a collagen-like structure, we hypothesized that C1q might engage DDR2 to regulate wound healing and extracellular matrix (ECM) remodeling. Methods Cell-based assay, proximity ligation assay, ELISA, and surface plasmon analysis were utilized to investigate DDR2 and C1q binding. We also investigate the C1q-mediated in vitro wound healing ability using the human fibrosarcoma cell line, HT1080. Results C1q induced the phosphorylation of DDR2, p38 kinase, and ERK1/2. C1q and DDR2 binding improved cell migration and induced MMP2 and MMP9 expression. DDR2-specific shRNA reduced C1q-mediated cell migration for wound healing. Conclusions C1q is a new DDR2 ligand that promotes wound healing. These findings have therapeutic implications in wound healing-related diseases.
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Affiliation(s)
- Ria Aryani Hayuningtyas
- Department of Microbiology, Yonsei University College of Medicine, 50-1 Yonsei-ro Seodaemun-gu, Seoul, 03722, Republic of Korea.,Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Myeonggil Han
- Department of Microbiology, Yonsei University College of Medicine, 50-1 Yonsei-ro Seodaemun-gu, Seoul, 03722, Republic of Korea.,Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Seoyeon Choi
- Department of Microbiology, Yonsei University College of Medicine, 50-1 Yonsei-ro Seodaemun-gu, Seoul, 03722, Republic of Korea.,Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Man Sup Kwak
- Department of Microbiology, Yonsei University College of Medicine, 50-1 Yonsei-ro Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - In Ho Park
- Severance Biomedical Science Institute and Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Ji-Hyun Lee
- Department of Immunology and Institute for Medical Sciences, Jeonbuk National University, Medical School, Jeonju, Jeollabuk-do, 54907, Republic of Korea
| | - Ji Eun Choi
- Department of Pediatrics, Seoul National University Boramae Hospital, Seoul National University College of Medicine, Seoul, 07061, Republic of Korea
| | - Dae Ki Kim
- Department of Immunology and Institute for Medical Sciences, Jeonbuk National University, Medical School, Jeonju, Jeollabuk-do, 54907, Republic of Korea
| | - Myoungsun Son
- Institute of Molecular Medicine, The Feinstein Institutes for Medical Research, 350 Community Drive, Manhasset, NY, 11030, USA. .,Department of Molecular Medicine, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, NY, 11549, USA.
| | - Jeon-Soo Shin
- Department of Microbiology, Yonsei University College of Medicine, 50-1 Yonsei-ro Seodaemun-gu, Seoul, 03722, Republic of Korea. .,Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea. .,Severance Biomedical Science Institute and Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea.
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21
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Rawish E, Sauter M, Sauter R, Nording H, Langer HF. Complement, inflammation and thrombosis. Br J Pharmacol 2021; 178:2892-2904. [PMID: 33817781 DOI: 10.1111/bph.15476] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 12/30/2020] [Accepted: 01/09/2021] [Indexed: 12/14/2022] Open
Abstract
A mutual relationship exists between immune activation and mechanisms of thrombus formation. In particular, elements of the innate immune response such as the complement system can modulate platelet activation and subsequently thrombus formation. Several components of the complement system including C3 or the membrane attack complex have been reported to be associated with platelets and become functionally active in the micromilieu of platelet activation. The exact mechanisms how this interplay is regulated and its consequences for tissue inflammation, damage or recovery remain to be defined. This review addresses the current state of knowledge on this topic and puts it into context with diseases featuring both thrombosis and complement activation. LINKED ARTICLES: This article is part of a themed issue on Canonical and non-canonical functions of the complement system in health and disease. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v178.14/issuetoc.
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Affiliation(s)
- Elias Rawish
- Cardioimmunology Group, Medical Clinic II, University Heart Center Lübeck, Lübeck, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Hamburg/Lübeck/Kiel, Lübeck, Germany.,University Hospital, Medical Clinic II, University Heart Center Lübeck, Lübeck, Germany
| | - Manuela Sauter
- Cardioimmunology Group, Medical Clinic II, University Heart Center Lübeck, Lübeck, Germany
| | - Reinhard Sauter
- Cardioimmunology Group, Medical Clinic II, University Heart Center Lübeck, Lübeck, Germany.,University Hospital, Medical Clinic II, University Heart Center Lübeck, Lübeck, Germany
| | - Henry Nording
- Cardioimmunology Group, Medical Clinic II, University Heart Center Lübeck, Lübeck, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Hamburg/Lübeck/Kiel, Lübeck, Germany
| | - Harald F Langer
- Cardioimmunology Group, Medical Clinic II, University Heart Center Lübeck, Lübeck, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Hamburg/Lübeck/Kiel, Lübeck, Germany.,University Hospital, Medical Clinic II, University Heart Center Lübeck, Lübeck, Germany
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22
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Bally I, Ancelet S, Reiser JB, Rossi V, Gaboriaud C, Thielens NM. Functional recombinant human complement C1q with different affinity tags. J Immunol Methods 2021; 492:113001. [PMID: 33621564 DOI: 10.1016/j.jim.2021.113001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 02/14/2021] [Accepted: 02/16/2021] [Indexed: 11/24/2022]
Abstract
Complement C1q is a multifunctional protein able to sense pathogens and immune molecules such as immunoglobulins and pentraxins, and to trigger the classical complement pathway through activation of its two associated proteases, C1r and C1s. C1q is a multimeric protein composed of three homologous yet distinct polypeptide chains A, B, and C, each composed of an N-terminal collagen-like sequence and a C-terminal globular gC1q module, that assemble into six heterotrimeric (A-B-C) subunits. This hexameric structure exhibits the characteristic shape of a bouquet of flowers, comprising six collagen-like triple helices, each terminating in a trimeric C-terminal globular head. We have produced previously functional recombinant full-length C1q in stably transfected HEK 293-F cells, with a FLAG tag inserted at the C-terminal end of C1qC chain. We report here the generation of additional recombinant C1q proteins, with a FLAG tag fused to the C-terminus of C1qA or C1qB chains, or to the N-terminus of the C1qC chain. Two other variants harboring a Myc or a 6-His tag at the C-terminal end of C1qC were also produced. We show that all C1q variants, except for the His-tagged protein, can be produced at comparable yields and are able to bind with similar affinities to either IgM, a ligand of the globular regions, or to the C1r2-C1s2 tetramer, and to trigger IgM-mediated serum complement activation. These new recombinant C1q variants provide additional tools to investigate the multiple functions of C1q.
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Affiliation(s)
- Isabelle Bally
- Univ. Grenoble Alpes, CEA, CNRS, IBS, F-38000 Grenoble, France
| | - Sarah Ancelet
- Univ. Grenoble Alpes, CEA, CNRS, IBS, F-38000 Grenoble, France
| | | | - Véronique Rossi
- Univ. Grenoble Alpes, CEA, CNRS, IBS, F-38000 Grenoble, France
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23
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Xiong X, Li C, Zheng Z, Du X. Novel globular C1q domain-containing protein (PmC1qDC-1) participates in shell formation and responses to pathogen-associated molecular patterns stimulation in Pinctada fucata martensii. Sci Rep 2021; 11:1105. [PMID: 33441832 PMCID: PMC7806589 DOI: 10.1038/s41598-020-80295-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 12/18/2020] [Indexed: 12/13/2022] Open
Abstract
The C1q protein, which contains the globular C1q (gC1q) domain, is involved in the innate immune response, and is found abundantly in the shell, and it participates in the shell formation. In this study, a novel gC1q domain-containing gene was identified from Pinctada fucata martensii (P. f. martensii) and designated as PmC1qDC-1. The full-length sequence of PmC1qDC-1 was 902 bp with a 534 bp open reading frame (ORF), encoding a polypeptide of 177 amino acids. Quantitative real-time PCR (qRT-PCR) result showed that PmC1qDC-1 was widely expressed in all tested tissues, including shell formation-associated tissue and immune-related tissue. PmC1qDC-1 expression was significantly high in the blastula and gastrula and especially among the juvenile stage, which is the most important stage of dissoconch shell formation. PmC1qDC-1 expression was located in the outer epithelial cells of mantle pallial and mantle edge and irregular crystal tablets were observed in the nacre upon knockdown of PmC1qDC-1 expression at mantle pallial. Moreover, the recombined protein PmC1qDC-1 increased the rate of calcium carbonate precipitation. Besides, PmC1qDC-1 expression was significantly up-regulated in the mantle pallial at 6 h and was significantly up-regulated in the mantle edge at 12 h and 24 h after shell notching. The expression level of PmC1qDC-1 in mantle edge was significantly up-regulated at 48 h after LPS stimulation and was significantly up-regulated at 12 h, 24 h and 48 h after poly I:C stimulation. Moreover, PmC1qDC-1 expression was significantly up-regulated in hemocytes at 6 h after lipopolysaccharide (LPS) and poly I:C challenge. These findings suggest that PmC1qDC-1 plays a crucial role both in the shell formation and the innate immune response in pearl oysters, providing new clues for understanding the shell formation and defense mechanism in mollusk.
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Affiliation(s)
- Xinwei Xiong
- Fishery College, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Chuyi Li
- Fishery College, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Zhe Zheng
- Fishery College, Guangdong Ocean University, Zhanjiang, 524088, China.
- Pearl Breeding and Processing Engineering Technology Research Centre of Guangdong Province, Zhanjiang, 524088, China.
- Guangdong Science and Innovation Center for Pearl Culture, Zhanjiang, 524088, China.
- Guangdong Provincial Engineering Laboratory for Mariculture Organism Breeding, Zhanjiang, 524088, China.
| | - Xiaodong Du
- Fishery College, Guangdong Ocean University, Zhanjiang, 524088, China.
- Pearl Breeding and Processing Engineering Technology Research Centre of Guangdong Province, Zhanjiang, 524088, China.
- Guangdong Science and Innovation Center for Pearl Culture, Zhanjiang, 524088, China.
- Guangdong Provincial Engineering Laboratory for Mariculture Organism Breeding, Zhanjiang, 524088, China.
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24
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Zecevic M, Minic A, Pasic S, Perovic V, Prohászka Z. Case Report: Early Onset Systemic Lupus Erythematosus Due to Hereditary C1q Deficiency Treated With Fresh Frozen Plasma. Front Pediatr 2021; 9:756387. [PMID: 34993161 PMCID: PMC8724570 DOI: 10.3389/fped.2021.756387] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 10/29/2021] [Indexed: 11/18/2022] Open
Abstract
Background: Hereditary C1q deficiency is associated with early-onset autoimmunity causing SLE or SLE-like disease as well as increased risk for infections with encapsulated bacteria. It is a rare genetic condition inherited in an autosomal recessive manner, caused by mutations in C1q genes. Treatment and management of this rare disease are very complex and include prophylactic vaccination, antibiotics, and immunosuppressive drugs. There are two possible modalities for the replacement of the missing protein: regular fresh frozen plasma (FFP) administration and allogeneic hematopoietic stem cell transplant because the protein is derived from monocytes. Replacing C1q with FFP is being attempted in some patients with success in controlling the disease and in avoiding flare. Case Report: We report a case of sixteen-month-old girl with ulcerations in her mouth, skin erythema, and elevated liver enzymes. ANAs were positive, antibodies against dsDNA were negative, but she had positive anti-Smith antibodies. Complement complements C3 and C4 levels were normal. Total complement activity, classical pathway (hemolytic test) was deficient and C1q antigen was below the detection limit supporting the presence of C1q deficiency. The girl has pathogenic homozygous nonsense mutation in C1qC gene, Arg69Ter (c205>T). The initial response to corticosteroid therapy was good. Regular fresh frozen plasma infusions keep her disease under control, and we were able to reduce the dose of corticosteroids. Conclusion: Young patients with cutaneous lesions resembling SLE, early onset of autoimmunity, with normal C3, C4, elevated ANAs, and negative anti-dsDNA, C1q deficiency should be suspected and complement screening tests should be done. It is important to exclude secondary C1q deficiency. FFP in our patient seems to be well tolerated, without any side effects, able to control the disease.
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Affiliation(s)
- Milica Zecevic
- Clinical Immunology and Allergy Department, Institute for Health Protection of Mother and Child of Serbia "Dr Vukan Cupic", Belgrade, Serbia
| | - Aleksandra Minic
- Clinical Immunology and Allergy Department, Institute for Health Protection of Mother and Child of Serbia "Dr Vukan Cupic", Belgrade, Serbia
| | - Srdjan Pasic
- Clinical Immunology and Allergy Department, Institute for Health Protection of Mother and Child of Serbia "Dr Vukan Cupic", Belgrade, Serbia.,Institute of Microbiology and Immunology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Vladimir Perovic
- Institute of Microbiology and Immunology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Zoltán Prohászka
- Department of Internal Medicine and Haematology, Semmelweis University, Budapest, Hungary.,Research Group for Immunology and Haematology, Semmelweis University-Eötvös Loránd Research Network (Office for Supported Research Groups), Budapest, Hungary
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25
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Shao S, Hao C, Zhan B, Zhuang Q, Zhao L, Chen Y, Huang J, Zhu X. Trichinella spiralis Calreticulin S-Domain Binds to Human Complement C1q to Interfere With C1q-Mediated Immune Functions. Front Immunol 2020; 11:572326. [PMID: 33329535 PMCID: PMC7710684 DOI: 10.3389/fimmu.2020.572326] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2020] [Accepted: 10/20/2020] [Indexed: 01/21/2023] Open
Abstract
Helminths develop strategies to escape host immune responses that facilitate their survival in the hostile host immune environment. Trichinella spiralis, a tissue-dwelling nematode, has developed a sophisticated strategy to escape complement attack. Our previous study demonstrated that T. spiralis secretes calreticulin (TsCRT) to inhibit host classical complement activation through binding to C1q; however, the C1q binding site in TsCRT and the specific mechanism involved with complement-related immune evasion remains unknown. Using molecular docking modeling and fragment expression, we determined that TsCRT-S, a 153-aa domain of TsCRT, is responsible for C1q binding. Recombinant TsCRT-S protein expressed in Escherichia coli had the same capacity to bind and inhibit human C1q-induced complement and neutrophil activation, as full-length TsCRT. TsCRT-S inhibited neutrophil reactive oxygen species and elastase release by binding to C1q and reduced neutrophil killing of newborn T. spiralis larvae. Binding of TsCRT-S to C1q also inhibited formation of neutrophil extracellular traps (NETs), which are involved in autoimmune pathologies and have yet to be therapeutically targeted. These findings provide evidence that the TsCRT-S fragment, rather than the full-length TsCRT, is a potential target for vaccine or therapeutic development for trichinellosis, as well as for complement-related autoimmune disease therapies.
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Affiliation(s)
- Shuai Shao
- Department of Medical Microbiology and Parasitology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Chunyue Hao
- Department of Medical Microbiology and Parasitology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Bin Zhan
- Department of Pediatrics, National School of Tropical Medicine, Baylor College of Medicine, Houston, TX, United States
| | - Qinghui Zhuang
- Department of Medical Microbiology and Parasitology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Limei Zhao
- Department of Medical Microbiology and Parasitology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Yi Chen
- Department of Medical Microbiology and Parasitology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Jingjing Huang
- Department of Medical Microbiology and Parasitology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Xinping Zhu
- Department of Medical Microbiology and Parasitology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
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26
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Bone marrow transplantation from a human leukocyte antigen-mismatched unrelated donor in a case with C1q deficiency associated with refractory systemic lupus erythematosus. Int J Hematol 2020; 113:302-307. [PMID: 33000368 DOI: 10.1007/s12185-020-03004-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 08/10/2020] [Accepted: 09/10/2020] [Indexed: 10/23/2022]
Abstract
Human C1q deficiency is frequently associated with systemic lupus erythematosus (SLE), which requires long-term systemic corticosteroid administration. We report the case of a 12-year-old female patient with C1q deficiency presenting with intractable SLE who successfully underwent bone marrow transplantation from a human leukocyte antigen (HLA)-mismatched unrelated donor with an immunosuppressive conditioning regimen based on fludarabine, melphalan, and anti-thymocyte globulin. She developed Grade I graft-versus-host disease, but did not have any transplantation-related morbidity. Complete donor chimerism has been maintained for 2 years after transplantation, leading to the restoration of C1q levels and the resolution of SLE symptoms. Normal C1q mRNA expression was observed in CD14 + cells. Hematopoietic stem cell transplantation from an HLA-mismatched donor is a feasible treatment for patients with C1q deficiency with refractory SLE that is dependent on systemic corticosteroid treatment who do not have an HLA-matched donor.
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27
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Abstract
Calreticulin (CRT) is a pleiotropic and highly conserved molecule that is mainly localized in the endoplasmic reticulum. Recently, CRT has gained special interest for its functions outside the endoplasmic reticulum where it has immunomodulatory properties. CRT translocation to the cell membrane serves as an "eat me" signal and promotes efferocytosis of apoptotic cells and cancer cell removal with completely opposite outcomes. Efferocytosis results in a silenced immune response and homeostasis, while removal of dying cancer cells brought about by anthracycline treatment, ionizing-irradiation or photodynamic therapy results in immunogenic cell death with activation of the innate and adaptive immune responses. In addition, CRT impacts phagocyte activation and cytokine production. The effects of CRT on cytokine production depend on its conformation, species specificity, degree of oligomerization and/or glycosylation, as well as its cellular localization and the molecular partners involved. The controversial roles of CRT in cancer progression and the possible role of the CALR gene mutations in myeloproliferative neoplasms are also addressed. The release of CRT and its influence on the different cells involved during efferocytosis and immunogenic cell death points to additional roles of CRT besides merely acting as an "eat me" signal during apoptosis. Understanding the contribution of CRT in physiological and pathological processes could give us some insight into the potential of CRT as a therapeutic target.
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28
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Ding T, Sun J. Formation of Protein Corona on Nanoparticle Affects Different Complement Activation Pathways Mediated by C1q. Pharm Res 2019; 37:10. [PMID: 31872347 DOI: 10.1007/s11095-019-2747-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 12/05/2019] [Indexed: 12/26/2022]
Abstract
PURPOSE As nanoparticles (NPs) are intravenously entering the bloodstream, proteins in the plasma can recognize and bind them to form a protein corona that affects how NPs are perceived by biological systems. The complement is an essential part of the innate immunity that contributes to non-specific host defense. How complement recognizes NPs has not been elucidated. Here, we developed a proteomics and biochemical approach to understand the applied risk of activated complement by NPs. METHODS Complement proteins absorbed on Hydroxyapatite Nanoparticles (HAP-NPs) and Silicon dioxide Nanoparticles (SiO2-NPs) were analyzed by proteomics with LC-MS. The effect of complement activation was studied by iC3b/Sc5b-9/C3a/C4a/C5a with ELISA. An inhibitory model was established via EDTA and EGTA to confirm the selective pathway activation of both NPs. Finally, the regulation of complement by NPs was analyzed by western blot. RESULTS The results indicate that HAP-NPs start the activation of the complement through the classical pathway because of the absorption of C1q and the release of C1r/C1s. Meanwhile, the soluble regulatory molecules such as CFI, C4bp, and CFH tried to resist the complement system activation by the cleavage of C3 convertase. In contrast, SiO2-NPs can activate the alternative pathway of the complement through the absorption of CFD and CFB. CONCLUSION It was clarified that HAP-NPs and SiO2-NPs activate complement through different mechanisms. These studies provide a scientific basis for the design and modification of nano-drug carriers for delaying their recognition and clearance by the mononuclear phagocytic system and simultaneously reducing the immunotoxicity of NPs. The understanding of protein corona is conducive to innovation in the field of "immune-safe-by-design" nanomedicines.
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Affiliation(s)
- Tingting Ding
- Shanghai Biomaterials Research & Testing Center, Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, No. 427, Ju-men Road, Shanghai, 200023, China
| | - Jiao Sun
- Shanghai Biomaterials Research & Testing Center, Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, No. 427, Ju-men Road, Shanghai, 200023, China.
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29
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Donat C, Thanei S, Trendelenburg M. Binding of von Willebrand Factor to Complement C1q Decreases the Phagocytosis of Cholesterol Crystals and Subsequent IL-1 Secretion in Macrophages. Front Immunol 2019; 10:2712. [PMID: 31824501 PMCID: PMC6881245 DOI: 10.3389/fimmu.2019.02712] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 11/05/2019] [Indexed: 12/17/2022] Open
Abstract
Complement C1q, the initiation molecule of the classical pathway, exerts various immunomodulatory functions independent of complement activation. Non-classical functions of C1q include the clearance of apoptotic cells and cholesterol crystals (CC), as well as the modulation of cytokine secretion by immune cells such as macrophages. Moreover, C1q has been shown to act as a binding partner for von Willebrand factor (vWF), initiation molecule of primary hemostasis. However, the consequences of this C1q-vWF interaction on the phagocytosis of CC by macrophages has remained elusive until now. Here, we used CC-C1q-vWF complexes to study immunological effects on human monocyte-derived macrophages (HMDMs). HMDMs were investigated by analyzing surface receptor expression, phagocytosis of CC complexes, cytokine secretion, and caspase-1 activity. We found that vWF only bound to CC in a C1q-dependent manner. Exposure of macrophages to CC-C1q-vWF complexes resulted in an upregulated expression of phagocytosis-mediating receptors MerTK, LRP-1, and SR-A1 as well as CD14, LAIR1, and PD-L1 when compared to CC-C1q without vWF, whereas phagocytosis of CC-C1q complexes was hampered in the presence of vWF. In addition, we observed a diminished caspase-1 activation and subsequent reduction in pro-inflammatory IL-1β cytokine secretion, IL-1β/IL-1RA ratio and IL-1α/IL-1RA ratio. In conclusion, our results demonstrate that vWF binding to C1q substantially modulates the effects of C1q on HMDMs. In this way, the C1q-vWF interaction might be beneficial in dampening inflammation, e.g., in the context of atherosclerosis.
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Affiliation(s)
- Claudia Donat
- Laboratory of Clinical Immunology, Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Sophia Thanei
- Laboratory of Clinical Immunology, Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Marten Trendelenburg
- Laboratory of Clinical Immunology, Department of Biomedicine, University of Basel, Basel, Switzerland.,Division of Internal Medicine, University Hospital of Basel, Basel, Switzerland
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30
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Kim H, Conway EM. Platelets and Complement Cross-Talk in Early Atherogenesis. Front Cardiovasc Med 2019; 6:131. [PMID: 31555668 PMCID: PMC6742699 DOI: 10.3389/fcvm.2019.00131] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Accepted: 08/22/2019] [Indexed: 12/16/2022] Open
Abstract
Atherosclerosis remains a ubiquitous and serious threat to human health. The initial formation of the atherosclerotic lesion (atheroma) is driven by pro-inflammatory signaling involving monocytes and vascular endothelial cells; later stages of the disease involve rupture of well-established atherosclerotic plaques, thrombosis, and blood vessel occlusion. While the central role of platelets in thrombosis is undisputed, platelets exhibit pro-inflammatory activities, and contribute to early-stage atheroma formation. Platelets also engage components of the complement system, an essential element of innate immunity that contributes to vascular inflammation. Here we provide an overview of the complex interplay between platelets and the complement system, with a focus on how the crosstalk between them may impact on the initiation of atheroma formation.
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Affiliation(s)
- Hugh Kim
- Centre for Blood Research, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada.,Department of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, BC, Canada.,Faculty of Dentistry, University of British Columbia, Vancouver, BC, Canada
| | - Edward M Conway
- Centre for Blood Research, Life Sciences Institute, University of British Columbia, Vancouver, BC, Canada.,Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
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Lv Z, Wang L, Jia Z, Sun J, Wang W, Liu Z, Qiu L, Wang M, Song L. Hemolymph C1qDC promotes the phagocytosis of oyster Crassostrea gigas hemocytes by interacting with the membrane receptor β-integrin. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2019; 98:42-53. [PMID: 30995452 DOI: 10.1016/j.dci.2019.04.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Revised: 04/08/2019] [Accepted: 04/09/2019] [Indexed: 06/09/2023]
Abstract
Phagocytosis constitutes a conserved cellular process for multicellular animals to ingest or engulf other cells or particles, which is facilitated by the use of opsonins to bind foreign particles and interact with cell surface receptors. The invertebrate secreted C1q domain-containing proteins (C1qDCs) have been reported to exhibit opsonic activity, while the detailed mechanisms of opsonization still remain unclear. In the present study, a C1qDC (designated as CgC1qDC-5) with opsonic activity was identified from the hemolymph of oyster Crassostrea gigas. CgC1qDC-5 exhibited the ability to bind pathogen-associated molecular patterns (PAMPs) of lipopolysaccharides (LPS) and Lipid A. It could also bind and agglutinate Gram-negative bacteria Escherichia coli, Vibrio splendidus and Vibrio anguillarum, whereas the agglutinating activity could be inhibited by LPS. In addition, CgC1qDC-5 could enhance the phagocytosis of hemocytes toward E. coli, V. splendidus, and V. anguillarum. GST pull-down and surface plasmon resonance assays in vitro revealed that CgC1qDC-5 could interact with β-integrin (CgIntegrin). In vivo, CgC1qDC-5 was observed to bind hemocytes and co-localized with CgIntegrin on the cell membrane of hemocytes. Antibody-mediated blockage of CgIntegrin hindered the CgC1qDC-5-enhanced hemocytic phagocytosis. CgIntegrin also exhibited the ability to bind the Gram-negative bacteria E. coli, V. splendidus, V. anguillarum and Vibrio parahaemolyticus, and PAMP of LPS, but not Lipid A. A phagocytosis assay demonstrated that CgIntegrin could directly mediate phagocytosis toward bacteria as a phagocytic receptor. These results collectively suggested that CgC1qDC-5 could serve as an opsonin to recognize and bind bacteria, and subsequently interact with CgIntegrin on the hemocyte surface to enhance the CgIntegrin-mediated phagocytosis in oyster.
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Affiliation(s)
- Zhao Lv
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China; Laboratory of Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Lingling Wang
- Laboratory of Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China; Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Zhihao Jia
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jiejie Sun
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Weilin Wang
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Zhaoqun Liu
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Limei Qiu
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China
| | - Mengqiang Wang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China
| | - Linsheng Song
- Laboratory of Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China; Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China.
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Lubbers R, Beaart-van de Voorde LJJ, van Leeuwen K, de Boer M, Gelderman KA, van den Berg MJ, Ketel AG, Simon A, de Ree J, Huizinga TWJ, Steup-Beekman GM, Trouw LA. Complex medical history of a patient with a compound heterozygous mutation in C1QC. Lupus 2019; 28:1255-1260. [PMID: 31357913 PMCID: PMC6710612 DOI: 10.1177/0961203319865029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Introduction C1q is an essential part of the classical pathway of complement activation. Genetic deficiencies, caused by homozygous mutations in one of the C1q genes, are rare and are strongly associated with development of systemic lupus erythematosus (SLE). Here we describe a C1q-deficient patient with a compound heterozygous mutation. Material and methods Serum was analysed with enzyme-linked immunosorbent assay (ELISA) and Western blot for the presence of C1q, and DNA and RNA sequencing was performed to identify the mutations and confirm that these were located on different chromosomes. Results The medical history of the patient includes SLE diagnosis at age 11 years with cerebral involvement at age 13, various infections, osteonecrosis and hemophagocytic syndrome. Using ELISA and Western blot, we confirmed the absence of C1q in the serum of the patient. Using DNA sequencing, two mutations in the C1QC gene were identified: c.100G > A p.(Gly34Arg) and c.205C > T p.(Arg69X). With RNA sequencing we confirmed that the mutations are located on different chromosomes. Discussion The patient described in this case report has a compound heterozygous mutation in C1QC resulting in C1q deficiency.
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Affiliation(s)
- R Lubbers
- 1 Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands
| | | | - K van Leeuwen
- 2 Sanquin Diagnostic Services, Amsterdam, the Netherlands
| | - M de Boer
- 2 Sanquin Diagnostic Services, Amsterdam, the Netherlands
| | - K A Gelderman
- 2 Sanquin Diagnostic Services, Amsterdam, the Netherlands
| | - M J van den Berg
- 3 Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Pediatric Rheumatology and Immunology, Amsterdam, the Netherlands
| | - A G Ketel
- 4 Spaarnegasthuis, Hoofddorp, the Netherlands
| | - A Simon
- 5 Radboud University Medical Center, Center for Immunodeficiency and Autoinflammation, Department of Internal Medicine, Nijmegen, the Netherlands
| | - J de Ree
- 4 Spaarnegasthuis, Hoofddorp, the Netherlands
| | - T W J Huizinga
- 1 Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands
| | - G M Steup-Beekman
- 1 Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands
| | - L A Trouw
- 1 Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands.,6 Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, Leiden, the Netherlands
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Cho K. Emerging Roles of Complement Protein C1q in Neurodegeneration. Aging Dis 2019; 10:652-663. [PMID: 31165008 PMCID: PMC6538225 DOI: 10.14336/ad.2019.0118] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Accepted: 01/18/2019] [Indexed: 12/19/2022] Open
Abstract
The innate immune system is an ancient and primary component system that rapidly reacts to defend the body against external pathogens. C1 is the initial responder of classical pathway of the innate immune system. C1 is comprised of C1q, C1r, and C1s. Among them, C1q is known to interact with diverse ligands, which can perform various functions in physiological and pathophysiological conditions. Because C1q participates in the clearance of pathogens, its interaction with novel receptors is expected to facilitate apoptosis induction, which could prevent the onset or progression of neurodegenerative diseases and could delay the aging process. Because senescence-associated secreting phenotype determinants are generally inflammatory cytokines or immune factors to activate immune cells. In the central nervous system, C1q has diverse neuroprotective roles against pathogens and inflammation. Most of neurodegenerative diseases show region specific pathology feature in the brain. It has been suggested the evidences that the active site and amount of C1q may be disease specific. This review considers currently the emerging and under-recognized roles of C1q in neurodegeneration and highlights the need for further research to clarify these roles. Future studies on the roles of C1q in regulating disease progression should consider these aspects, including the age-dependent onset time of each neurodegenerative disease progression.
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Affiliation(s)
- Kyoungjoo Cho
- Department of Life Science, Kyonggi University, Suwon, South Korea
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Szakács D, Kocsis A, Szász R, Gál P, Pál G. Novel MASP-2 inhibitors developed via directed evolution of human TFPI1 are potent lectin pathway inhibitors. J Biol Chem 2019; 294:8227-8237. [PMID: 30952698 PMCID: PMC6527154 DOI: 10.1074/jbc.ra119.008315] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 03/28/2019] [Indexed: 12/28/2022] Open
Abstract
The lectin pathway (LP) of the complement system is an important antimicrobial defense mechanism, but it also contributes significantly to ischemia reperfusion injury (IRI) associated with myocardial infarct, stroke, and several other clinical conditions. Mannan-binding lectin-associated serine proteinase 2 (MASP-2) is essential for LP activation, and therefore, it is a potential drug target. We have previously developed the first two generations of MASP-2 inhibitors by in vitro evolution of two unrelated canonical serine proteinase inhibitors. These inhibitors were selective LP inhibitors, but their nonhuman origin rendered them suboptimal lead molecules for drug development. Here, we present our third-generation MASP-2 inhibitors that were developed based on a human inhibitor scaffold. We subjected the second Kunitz domain of human tissue factor pathway inhibitor 1 (TFPI1 D2) to directed evolution using phage display to yield inhibitors against human and rat MASP-2. These novel TFPI1-based MASP-2 inhibitor (TFMI-2) variants are potent and selective LP inhibitors in both human and rat serum. Directed evolution of the first Kunitz domain of TFPI1 had already yielded the potent kallikrein inhibitor, Kalbitor® (ecallantide), which is an FDA-approved drug to treat acute attacks of hereditary angioedema. Like hereditary angioedema, acute IRI is also related to the uncontrolled activation of a specific plasma serine proteinase. Therefore, TFMI-2 variants are promising lead molecules for drug development against IRI.
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Affiliation(s)
- Dávid Szakács
- Department of Biochemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/C, H-1117 Budapest
| | - Andrea Kocsis
- Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok körútja 2, H-1117 Budapest
| | - Róbert Szász
- Department of Hematology, Institute of Internal Medicine, University of Debrecen, Nagyerdei krt. 98, H-4032 Debrecen
| | - Péter Gál
- Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok körútja 2, H-1117 Budapest
| | - Gábor Pál
- Department of Biochemistry, ELTE Eötvös Loránd University, Pázmány Péter sétány 1/C, H-1117 Budapest; EvolVeritas Biotechnology Ltd., Somogyi Béla u. 17, H-6600 Szentes, Hungary.
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Li Y, Niu D, Bai Y, Lan T, Peng M, Dong Z, Li J. Identification of a novel C1q complement component in razor clam Sinonovacula constricta and its role in antibacterial activity. FISH & SHELLFISH IMMUNOLOGY 2019; 87:193-201. [PMID: 30639866 DOI: 10.1016/j.fsi.2019.01.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 01/07/2019] [Accepted: 01/10/2019] [Indexed: 06/09/2023]
Abstract
The serum complement component C1q mediates a variety of immune regulatory functions. Herein, we identified a globular head C1q (ghC1q) gene in razor clam Sinonovacula constricta. The complete Sc-ghC1q gene was 872 bp long included an 81 bp 5'-untranslated region (UTR), a 95 bp 3'-UTR with a poly(A) tail, and an open reading frame (ORF) of 696 bp. The mRNA expression of Sc-ghC1q was upregulated in hepatopancreas and hemocytes. After Staphylococcus aureus or Vibrio anguillarum challenge, Sc-ghC1q mRNA transcript abundance was significantly upregulated in hemolymph. Recombinant Sc-ghC1q protein could bind lipopolysaccharide (LPS) and lipoteichoic acid (LTA), and it could agglutinate both Gram-positive and Gram-negative bacteria. Additionally, flow cytometry revealed that Sc-ghC1q strongly promoted phagocytosis in hemocytes. Together, these results demonstrated that Sc-ghC1q played an important role in innate immunity in S. constricta.
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Affiliation(s)
- Yan Li
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China
| | - Donghong Niu
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China; National Demonstration Centre for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, 201306, China.
| | - Yuqi Bai
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China
| | - Tianyi Lan
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China
| | - Maoxiao Peng
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China
| | - Zhiguo Dong
- Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Huaihai Institute of Technology, Lianyungang, 222005, China
| | - Jiale Li
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China; Shanghai Engineering Research Centre of Aquaculture, Shanghai, 201306, China.
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Misra A, Chakrabarti SS, Gambhir IS. New genetic players in late-onset Alzheimer's disease: Findings of genome-wide association studies. Indian J Med Res 2019; 148:135-144. [PMID: 30381536 PMCID: PMC6206761 DOI: 10.4103/ijmr.ijmr_473_17] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Late-onset Alzheimer's disease (LOAD) or sporadic AD is the most common form of AD. The precise pathogenetic changes that trigger the development of AD remain largely unknown. Large-scale genome-wide association studies (GWASs) have identified single-nucleotide polymorphisms in multiple genes which are associated with AD; most notably, these are ABCA7, bridging integrator 1(B1N1), triggering receptor expressed on myeloid cells 2 (TREM2), CD33, clusterin (CLU), complement receptor 1 (CRI), ephrin type-A receptor 1 (EPHA1), membrane-spanning 4-domains, subfamily A (MS4A) and phosphatidylinositol binding clathrin assembly protein (PICALM) genes. The proteins coded by the candidate genes participate in a variety of cellular processes such as oxidative balance, protein metabolism, cholesterol metabolism and synaptic function. This review summarizes the major gene loci affecting LOAD identified by large GWASs. Tentative mechanisms have also been elaborated in various studies by which the proteins coded by these genes may exert a role in AD pathogenesis have also been elaborated. The review suggests that these may together affect LOAD pathogenesis in a complementary fashion.
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Affiliation(s)
- Anamika Misra
- Department of Medicine, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | | | - Indrajeet Singh Gambhir
- Department of Medicine, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
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Huang X, Li J, Xie J, Li Y, Gao Y, Li X, Xu X, Shi R, Yao W, Ke C. Neuronal complement cascade drives bone cancer pain via C3R mediated microglial activation. Brain Res 2018; 1698:81-88. [PMID: 29909203 DOI: 10.1016/j.brainres.2018.06.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Revised: 06/06/2018] [Accepted: 06/09/2018] [Indexed: 11/17/2022]
Abstract
Activation of spinal cord microglia is crucial for the development of bone cancer pain (BCP). The essential signal between neuronal excitability and microglial activation is not fully understood. In the present study, carcinoma implantation into tibia was used to induce BCP and RNAi-lentivirus was injected into spinal cord to knock down C1, C2 or C3 of complement cascade. We showed that C1, C2 and C3 co-localized in the same neurons and increased in cancer-bearing rats along with microglial activation. Knocked down of C1, C2 or C3 inhibited microglial activation and prevented the development of cancer-induced bone pain. Intrathecal administration of either minocycline (an inhibitor of microglial activity) to inhibit the activation of microglia or compstatin (a C3-targeted complement inhibitor) to block the complement cascade reversed cancer induced bone pain. Further study indicated that neuronal complement promoted the activation of microglia via complement 3 receptor (C3R). In the in vitro experiments, the proliferation of microglia was enhanced by the activation product of C3 (iC3b), but was inhibited by compstatin. These results indicated that neuronal complement pathway promoted the activation of microglia via C3R and contributed to the development of BCP.
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Affiliation(s)
- Xiaoxia Huang
- Department of Nephrology, Taihe Hospital, Hubei University of Medicine, Shiyan City 442000, Hubei Province, China
| | - Jinyuan Li
- Department of Emergency, Taihe Hospital, Hubei University of Medicine, Shiyan City 442000, Hubei Province, China
| | - Jin Xie
- Institute of Anesthesiology & Pain (IAP), PET-CT, Department of Anesthesiology, Taihe Hospital, Hubei University of Medicine, Shiyan City 442000, Hubei Province, China
| | - Yang Li
- Institute of Anesthesiology & Pain (IAP), PET-CT, Department of Anesthesiology, Taihe Hospital, Hubei University of Medicine, Shiyan City 442000, Hubei Province, China
| | - Yan Gao
- Institute of Anesthesiology & Pain (IAP), PET-CT, Department of Anesthesiology, Taihe Hospital, Hubei University of Medicine, Shiyan City 442000, Hubei Province, China
| | - Xiaohui Li
- Institute of Anesthesiology & Pain (IAP), PET-CT, Department of Anesthesiology, Taihe Hospital, Hubei University of Medicine, Shiyan City 442000, Hubei Province, China
| | - Xueqin Xu
- Institute of Anesthesiology & Pain (IAP), PET-CT, Department of Anesthesiology, Taihe Hospital, Hubei University of Medicine, Shiyan City 442000, Hubei Province, China
| | - Ruoshi Shi
- Institute of Anesthesiology & Pain (IAP), PET-CT, Department of Anesthesiology, Taihe Hospital, Hubei University of Medicine, Shiyan City 442000, Hubei Province, China
| | - Wanjun Yao
- Institute of Anesthesiology & Pain (IAP), PET-CT, Department of Anesthesiology, Taihe Hospital, Hubei University of Medicine, Shiyan City 442000, Hubei Province, China
| | - Changbin Ke
- Institute of Anesthesiology & Pain (IAP), PET-CT, Department of Anesthesiology, Taihe Hospital, Hubei University of Medicine, Shiyan City 442000, Hubei Province, China.
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38
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Belime A, Thielens NM, Gravel E, Frachet P, Ancelet S, Tacnet P, Caneiro C, Chuprin J, Gaboriaud C, Schoehn G, Doris E, Ling WL. Recognition protein C1q of innate immunity agglutinates nanodiamonds without activating complement. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2018; 18:292-302. [PMID: 30368000 DOI: 10.1016/j.nano.2018.09.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 08/31/2018] [Accepted: 09/27/2018] [Indexed: 12/26/2022]
Abstract
Nanodiamonds are promising nanomedicines for diagnostic and therapeutic applications. As nanodiamonds are mainly administered intravenously, it is critical to understand the humoral immune response upon exposure to nanodiamonds. Here, we report the interactions of pristine, oxidized, and PEG-functionalized nanodiamonds with human complement, an important part of our humoral innate immunity. In particular, we report the nanodiamond binding properties of the recognition protein of the classical complement pathway: C1q, which also takes part in many other physiological and pathological processes. Our results show similar trends in the effects of C1q on the three types of nanodiamonds. Complement activation assays using human serum show that the nanodiamonds trigger slight activities via the alternative pathway and no response via the classical pathway. Nevertheless, surface plasmon resonance shows that C1q binds the nanodiamonds and transmission electron microscopy reveals their agglutination. Studies with macrophages further show that C1q attachment affects their phagocytosis and cytokine response.
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Affiliation(s)
- Agathe Belime
- Service de Chimie Bioorganique et de Marquage (SCBM), CEA, Université Paris-Saclay, Gif-sur-Yvette, France
| | | | - Edmond Gravel
- Service de Chimie Bioorganique et de Marquage (SCBM), CEA, Université Paris-Saclay, Gif-sur-Yvette, France
| | | | - Sarah Ancelet
- Univ. Grenoble Alpes, CEA, CNRS, IBS, Grenoble, France
| | | | | | - Jane Chuprin
- Univ. Grenoble Alpes, CEA, CNRS, IBS, Grenoble, France; Nano/Bio Interface Center, University of Pennsylvania, Philadelphia, PA, USA
| | | | - Guy Schoehn
- Univ. Grenoble Alpes, CEA, CNRS, IBS, Grenoble, France
| | - Eric Doris
- Service de Chimie Bioorganique et de Marquage (SCBM), CEA, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Wai Li Ling
- Univ. Grenoble Alpes, CEA, CNRS, IBS, Grenoble, France.
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Abstract
: Complement and coagulation are evolutionarily related proteolytic cascades in the blood that are critical for effecting an appropriate innate response to injury that limits bleeding and infection, while promoting healing. Although often viewed as distinct, it has long been recognized that cross-talk likely exists between these pathways. Only recently have molecular links been established. These are providing insights that are revealing opportunities for the development of novel therapeutic strategies to better treat a wide range of thrombotic, inflammatory, immune, infectious, and malignant diseases. In this brief review, the complex relationship between complement and coagulation is highlighted, underlining some of the newly uncovered interactions, in the hopes of stimulating innovative research that will yield improvements in patient outcomes.
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40
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Safety and Feasibility of Lin- Cells Administration to ALS Patients: A Novel View on Humoral Factors and miRNA Profiles. Int J Mol Sci 2018; 19:ijms19051312. [PMID: 29702606 PMCID: PMC5983708 DOI: 10.3390/ijms19051312] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 04/20/2018] [Accepted: 04/24/2018] [Indexed: 12/27/2022] Open
Abstract
Therapeutic options for amyotrophic lateral sclerosis (ALS) are still limited. Great hopes, however, are placed in growth factors that show neuroprotective abilities (e.g., nerve growth factor (NGF), brain-derived neurotrophic factor (BDNF), and vascular endothelial growth factor (VEGF)) and in the immune modulating features, in particular, the anti-inflammatory effects. In our study we aimed to investigate whether a bone marrow-derived lineage-negative (Lin-) cells population, after autologous application into cerebrospinal fluid (CSF), is able to produce noticeable concentrations of trophic factors and inflammatory-related proteins and thus influence the clinical course of ALS. To our knowledge, the evaluation of Lin- cells transplantation for ALS treatment has not been previously reported. Early hematopoietic Lin- cells were isolated from twelve ALS patients’ bone marrow, and later, the suspension of cells was administered into the subarachnoid space by lumbar puncture. Concentrations of selected proteins in the CSF and plasma were quantified by multiplex fluorescent bead-based immunoassays at different timepoints post-transplantation. We also chose microRNAs (miRNAs) related to muscle biology (miRNA-1, miRNA-133a, and miRNA-206) and angiogenesis and inflammation (miRNA-155 and miRNA-378) and tested, for the first time, their expression profiles in the CSF and plasma of ALS patients after Lin- cells transplantation. The injection of bone marrow cells resulted in decreased concentration of selected inflammatory proteins (C3) after Lin- cells injection, particularly in patients who had a better clinical outcome. Moreover, several analyzed miRNAs have changed expression levels in the CSF and plasma of ALS patients subsequent to Lin- cells administration. Interestingly, the expression of miR-206 increased in ALS patients, while miR-378 decreased both in the CSF and plasma one month after the cells’ injection. We propose that autologous lineage-negative early hematopoietic cells injected intrathecally may be a safe and feasible source of material for transplantations to the central nervous system (CNS) environment aimed at anti-inflammatory support provision for ALS adjuvant treatment strategies. Further research is needed to evaluate whether the observed effects could significantly influence the ALS progression.
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Wei X, Yang D, Li H, Jiang H, Liu X, Zhang Q, Yang J. Sialic acid-binding lectins (SABLs) from Solen grandis function as PRRs ensuring immune recognition and bacterial clearance. FISH & SHELLFISH IMMUNOLOGY 2018; 72:477-483. [PMID: 29146448 DOI: 10.1016/j.fsi.2017.11.026] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2017] [Revised: 10/31/2017] [Accepted: 11/10/2017] [Indexed: 06/07/2023]
Abstract
Sialic acid-binding lectins (SABLs) are ubiquitous ancient molecules with binding properties to N-acetyl or N-glycolyl carbohydrates, and play crucial roles in both adaptive and innate immune responses. In present study, recombinant protein and antibodies of two SABLs from mollusk Solen grandis (SgSABL-1 and SgSABL-2) were prepared to investigate their functions in innate immunity. The recombinant protein of SgSABL-1 (rSgSABL-1) could bind LPS, PGN and β-glucan in vitro, while rSgSABL-2 could only bind PGN rather than LPS and β-glucan. Be coincident with their PAMPs recognition properties, rSgSABL-1 displayed a broad agglutination spectrum towards gram-positive bacteria Micrococcus luteus, gram-negative bacteria Listonella anguillarum and fungi Pichia pastoris, and rSgSABL-2 only showed remarkable agglutinative effect on M. luteus and L. anguillarum. More importantly, after PAMPs recognition, rSgSABL-1 and rSgSABL-2 enhanced phagocytosis as well as encapsulation ability of hemocytes in vitro, and the enhanced encapsulation could be blocked by specific antibodies. All these results indicated that SgSABL-1 and SgSABL-2 functioned as two compensative pattern-recognition receptor (PRRs) with distinct recognition spectrum and involved in the innate immune response of S. grandis.
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Affiliation(s)
- Xiumei Wei
- Laboratory of Aquatic Comparative Immunology, School of Life Sciences, East China Normal University, Shanghai, 200241, China; Shandong Marine Resource and Environment Research Institute, Yantai 264006, China
| | - Dinglong Yang
- Shandong Marine Resource and Environment Research Institute, Yantai 264006, China
| | - Huiying Li
- Laboratory of Aquatic Comparative Immunology, School of Life Sciences, East China Normal University, Shanghai, 200241, China
| | - Hailin Jiang
- Shandong Marine Resource and Environment Research Institute, Yantai 264006, China
| | - Xiangquan Liu
- Shandong Marine Resource and Environment Research Institute, Yantai 264006, China
| | - Qin Zhang
- Key Laboratory of Marine Biotechnology of Guangxi, Guangxi Institute of Oceanology, Beihai 536000, China.
| | - Jialong Yang
- Laboratory of Aquatic Comparative Immunology, School of Life Sciences, East China Normal University, Shanghai, 200241, China.
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Belime A, Gravel E, Brenet S, Ancelet S, Caneiro C, Hou Y, Thielens N, Doris E, Ling WL. Mode of PEG Coverage on Carbon Nanotubes Affects Binding of Innate Immune Protein C1q. J Phys Chem B 2017; 122:757-763. [PMID: 28915042 DOI: 10.1021/acs.jpcb.7b06596] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Surface modification of nanoparticles with poly(ethylene glycol) (PEG) is used in biomedicine to increase the circulation time of the particles after intravenous injection. Here, we study the interaction of PEG-covered carbon nanotubes (CNTs) with the serum complement protein C1q. Besides being the target-recognizing unit of the initiating complex for the classical pathway of complement in our innate immune system, C1q is involved in a range of important physiological processes. We modified the surface of multiwalled CNTs with covalently grafted PEG and physically adsorbed PEG. Transmission electron microscopy revealed the interaction of these PEG-coated CNTs with C1q. We found abundant C1q coverage on the PEG-grafted CNTs but not on the CNTs with adsorbed PEG. We tested the ability of these CNTs to activate the complement system using in vitro complement activation assays. None of the CNTs studied activated the C1q-dependent classical complement pathway. These findings are pertinent to the safe design and novel biomedical applications of PEGylated CNTs.
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Affiliation(s)
- Agathe Belime
- Service de Chimie Bioorganique et de Marquage (SCBM), CEA, Université Paris-Saclay , 91191 Gif-sur-Yvette, France
| | - Edmond Gravel
- Service de Chimie Bioorganique et de Marquage (SCBM), CEA, Université Paris-Saclay , 91191 Gif-sur-Yvette, France
| | - Sophie Brenet
- Univ. Grenoble Alpes , CNRS, CEA, INAC, SyMMES, F-38000 Grenoble, France
| | - Sarah Ancelet
- Univ. Grenoble Alpes , CEA, CNRS, IBS, F-38000 Grenoble, France
| | | | - Yanxia Hou
- Univ. Grenoble Alpes , CNRS, CEA, INAC, SyMMES, F-38000 Grenoble, France
| | - Nicole Thielens
- Univ. Grenoble Alpes , CEA, CNRS, IBS, F-38000 Grenoble, France
| | - Eric Doris
- Service de Chimie Bioorganique et de Marquage (SCBM), CEA, Université Paris-Saclay , 91191 Gif-sur-Yvette, France
| | - Wai Li Ling
- Univ. Grenoble Alpes , CEA, CNRS, IBS, F-38000 Grenoble, France
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Zhao L, Shao S, Chen Y, Sun X, Sun R, Huang J, Zhan B, Zhu X. Trichinella spiralis Calreticulin Binds Human Complement C1q As an Immune Evasion Strategy. Front Immunol 2017; 8:636. [PMID: 28620388 PMCID: PMC5449505 DOI: 10.3389/fimmu.2017.00636] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 05/15/2017] [Indexed: 12/21/2022] Open
Abstract
As a multicellular parasitic nematode, Trichinella spiralis regulates host immune responses by producing a variety of immunomodulatory molecules to escape from host immune attack, but the mechanisms underlying the immune evasion are not well understood. Here, we identified that T. spiralis calreticulin (Ts-CRT), a Ca2+-binding protein, facilitated T. spiralis immune evasion by interacting with the first component of human classical complement pathway, C1q. In the present study, Ts-CRT was found to be expressed on the surface of different developmental stages of T. spiralis as well as in the secreted products of adult and muscle larval worms. Functional analysis identified that Ts-CRT was able to bind to human C1q, resulting in the inhibition of C1q-initiated complement classical activation pathway reflected by reduced C4/C3 generation and C1q-dependent lysis of antibody-sensitized sheep erythrocytes. Moreover, recombinant Ts-CRT (rTs-CRT) binding to C1q suppressed C1q-induced THP-1-derived macrophages chemotaxis and reduced monocyte–macrophages release of reactive oxygen intermediates (ROIs). Blocking Ts-CRT on the surface of newborn larvae (NBL) of T. spiralis with anti-Ts-CRT antibody increased the C1q-mediated adherence of monocyte–macrophages to larvae and impaired larval infectivity. All of these results suggest that T. spiralis-expressed Ts-CRT plays crucial roles in T. spiralis immune evasion and survival in host mostly by directly binding to host complement C1q, which not only reduces C1q-mediated activation of classical complement pathway but also inhibits the C1q-induced non-complement activation of macrophages.
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Affiliation(s)
- Limei Zhao
- Department of Medical Microbiology and Parasitology, School of Basic Medical Sciences, Capital Medical University, Beijing, China.,Research Centre of Microbiome, Capital Medical University, Beijing, China
| | - Shuai Shao
- Department of Medical Microbiology and Parasitology, School of Basic Medical Sciences, Capital Medical University, Beijing, China.,Research Centre of Microbiome, Capital Medical University, Beijing, China
| | - Yi Chen
- Department of Medical Microbiology and Parasitology, School of Basic Medical Sciences, Capital Medical University, Beijing, China.,Research Centre of Microbiome, Capital Medical University, Beijing, China
| | - Ximeng Sun
- Department of Medical Microbiology and Parasitology, School of Basic Medical Sciences, Capital Medical University, Beijing, China.,Research Centre of Microbiome, Capital Medical University, Beijing, China
| | - Ran Sun
- Department of Medical Microbiology and Parasitology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Jingjing Huang
- Department of Medical Microbiology and Parasitology, School of Basic Medical Sciences, Capital Medical University, Beijing, China.,Research Centre of Microbiome, Capital Medical University, Beijing, China
| | - Bin Zhan
- Department of Pediatrics, National School of Tropical Medicine, Baylor College of Medicine, Houston, TX, United States
| | - Xinping Zhu
- Department of Medical Microbiology and Parasitology, School of Basic Medical Sciences, Capital Medical University, Beijing, China.,Research Centre of Microbiome, Capital Medical University, Beijing, China
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44
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Lubbers R, van Essen MF, van Kooten C, Trouw LA. Production of complement components by cells of the immune system. Clin Exp Immunol 2017; 188:183-194. [PMID: 28249350 DOI: 10.1111/cei.12952] [Citation(s) in RCA: 306] [Impact Index Per Article: 43.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/25/2017] [Indexed: 12/14/2022] Open
Abstract
The complement system is an important part of the innate immune defence. It contributes not only to local inflammation, removal and killing of pathogens, but it also assists in shaping of the adaptive immune response. Besides a role in inflammation, complement is also involved in physiological processes such as waste disposal and developmental programmes. The complement system comprises several soluble and membrane-bound proteins. The bulk of the soluble proteins is produced mainly by the liver. While several complement proteins are produced by a wide variety of cell types, other complement proteins are produced by only a few related cell types. As these data suggest that local production by specific cell types may have specific functions, more detailed studies have been employed recently analysing the local and even intracellular role of these complement proteins. Here we review the current knowledge about extrahepatic production and/or secretion of complement components. More specifically, we address what is known about complement synthesis by cells of the human immune system.
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Affiliation(s)
- R Lubbers
- Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands
| | - M F van Essen
- Department of Nephrology, Leiden University Medical Center, Leiden, the Netherlands
| | - C van Kooten
- Department of Nephrology, Leiden University Medical Center, Leiden, the Netherlands
| | - L A Trouw
- Department of Rheumatology, Leiden University Medical Center, Leiden, the Netherlands
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45
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Ferluga J, Kouser L, Murugaiah V, Sim RB, Kishore U. Potential influences of complement factor H in autoimmune inflammatory and thrombotic disorders. Mol Immunol 2017; 84:84-106. [PMID: 28216098 DOI: 10.1016/j.molimm.2017.01.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 01/11/2017] [Accepted: 01/13/2017] [Indexed: 01/01/2023]
Abstract
Complement system homeostasis is important for host self-protection and anti-microbial immune surveillance, and recent research indicates roles in tissue development and remodelling. Complement also appears to have several points of interaction with the blood coagulation system. Deficiency and altered function due to gene mutations and polymorphisms in complement effectors and regulators, including Factor H, have been associated with familial and sporadic autoimmune inflammatory - thrombotic disorders, in which autoantibodies play a part. These include systemic lupus erythematosus, rheumatoid arthritis, atypical haemolytic uremic syndrome, anti-phospholipid syndrome and age-related macular degeneration. Such diseases are generally complex - multigenic and heterogeneous in their symptoms and predisposition/susceptibility. They usually need to be triggered by vascular trauma, drugs or infection and non-complement genetic factors also play a part. Underlying events seem to include decline in peripheral regulatory T cells, dendritic cell, and B cell tolerance, associated with alterations in lymphoid organ microenvironment. Factor H is an abundant protein, synthesised in many cell types, and its reported binding to many different ligands, even if not of high affinity, may influence a large number of molecular interactions, together with the accepted role of Factor H within the complement system. Factor H is involved in mesenchymal stem cell mediated tolerance and also contributes to self-tolerance by augmenting iC3b production and opsonisation of apoptotic cells for their silent dendritic cell engulfment via complement receptor CR3, which mediates anti-inflammatory-tolerogenic effects in the apoptotic cell context. There may be co-operation with other phagocytic receptors, such as complement C1q receptors, and the Tim glycoprotein family, which specifically bind phosphatidylserine expressed on the apoptotic cell surface. Factor H is able to discriminate between self and nonself surfaces for self-protection and anti-microbe defence. Factor H, particularly as an abundant platelet protein, may also modulate blood coagulation, having an anti-thrombotic role. Here, we review a number of interaction pathways in coagulation and in immunity, together with associated diseases, and indicate where Factor H may be expected to exert an influence, based on reports of the diversity of ligands for Factor H.
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Affiliation(s)
- Janez Ferluga
- Biosciences, College of Health and Life Sciences, Brunel University London, Uxbridge, UB8 3PH, United Kingdom
| | - Lubna Kouser
- Biosciences, College of Health and Life Sciences, Brunel University London, Uxbridge, UB8 3PH, United Kingdom
| | - Valarmathy Murugaiah
- Biosciences, College of Health and Life Sciences, Brunel University London, Uxbridge, UB8 3PH, United Kingdom
| | - Robert B Sim
- Department of Pharmacology, University of Oxford, Mansfield Road, Oxford OX1 3QT, United Kingdom
| | - Uday Kishore
- Biosciences, College of Health and Life Sciences, Brunel University London, Uxbridge, UB8 3PH, United Kingdom.
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46
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Xavier S, Sahu RK, Landes SG, Yu J, Taylor RP, Ayyadevara S, Megyesi J, Stallcup WB, Duffield JS, Reis ES, Lambris JD, Portilla D. Pericytes and immune cells contribute to complement activation in tubulointerstitial fibrosis. Am J Physiol Renal Physiol 2017; 312:F516-F532. [PMID: 28052876 PMCID: PMC5374314 DOI: 10.1152/ajprenal.00604.2016] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 12/07/2016] [Accepted: 01/03/2017] [Indexed: 12/22/2022] Open
Abstract
We have examined the pathogenic role of increased complement expression and activation during kidney fibrosis. Here, we show that PDGFRβ-positive pericytes isolated from mice subjected to obstructive or folic acid injury secrete C1q. This was associated with increased production of proinflammatory cytokines, extracellular matrix components, collagens, and increased Wnt3a-mediated activation of Wnt/β-catenin signaling, which are hallmarks of myofibroblast activation. Real-time PCR, immunoblots, immunohistochemistry, and flow cytometry analysis performed in whole kidney tissue confirmed increased expression of C1q, C1r, and C1s as well as complement activation, which is measured as increased synthesis of C3 fragments predominantly in the interstitial compartment. Flow studies localized increased C1q expression to PDGFRβ-positive pericytes as well as to CD45-positive cells. Although deletion of C1qA did not prevent kidney fibrosis, global deletion of C3 reduced macrophage infiltration, reduced synthesis of C3 fragments, and reduced fibrosis. Clodronate mediated depletion of CD11bF4/80 high macrophages in UUO mice also reduced complement gene expression and reduced fibrosis. Our studies demonstrate local synthesis of complement by both PDGFRβ-positive pericytes and CD45-positive cells in kidney fibrosis. Inhibition of complement activation represents a novel therapeutic target to ameliorate fibrosis and progression of chronic kidney disease.
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Affiliation(s)
- Sandhya Xavier
- Division of Nephrology, Center for Immunity, Inflammation, and Regenerative Medicine, University of Virginia, Charlottesville, Virginia
| | - Ranjit K Sahu
- Division of Nephrology, Center for Immunity, Inflammation, and Regenerative Medicine, University of Virginia, Charlottesville, Virginia
| | - Susan G Landes
- Division of Nephrology, Center for Immunity, Inflammation, and Regenerative Medicine, University of Virginia, Charlottesville, Virginia
| | - Jing Yu
- Department of Cell Biology, University of Virginia, Charlottesville, Virginia
| | - Ronald P Taylor
- Department of Biochemistry, University of Virginia, Charlottesville, Virginia
| | | | - Judit Megyesi
- University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - William B Stallcup
- Sanford Burnham Prebys Medical Discovery Institute, Tumor Metastasis and Cancer Immunology Program, La Jolla, California
| | | | - Edimara S Reis
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, Pennsylvania; and
| | - John D Lambris
- Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, Pennsylvania; and
| | - Didier Portilla
- Division of Nephrology, Center for Immunity, Inflammation, and Regenerative Medicine, University of Virginia, Charlottesville, Virginia; .,Salem Veterans Affairs Medical Center, Salem, Virginia
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47
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Pednekar L, Pandit H, Paudyal B, Kaur A, Al-Mozaini MA, Kouser L, Ghebrehiwet B, Mitchell DA, Madan T, Kishore U. Complement Protein C1q Interacts with DC-SIGN via Its Globular Domain and Thus May Interfere with HIV-1 Transmission. Front Immunol 2016; 7:600. [PMID: 28066413 PMCID: PMC5177617 DOI: 10.3389/fimmu.2016.00600] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2016] [Accepted: 11/30/2016] [Indexed: 12/11/2022] Open
Abstract
Dendritic cells (DCs) are the most potent antigen-presenting cells capable of priming naïve T-cells. Its C-type lectin receptor, DC-SIGN, regulates a wide range of immune functions. Along with its role in HIV-1 pathogenesis through complement opsonization of the virus, DC-SIGN has recently emerged as an adaptor for complement protein C1q on the surface of immature DCs via a trimeric complex involving gC1qR, a receptor for the globular domain of C1q. Here, we have examined the nature of interaction between C1q and DC-SIGN in terms of domain localization, and implications of C1q–DC-SIGN-gC1qR complex formation on HIV-1 transmission. We first expressed and purified recombinant extracellular domains of DC-SIGN and its homologue DC-SIGNR as tetramers comprising of the entire extra cellular domain including the α-helical neck region and monomers comprising of the carbohydrate recognition domain only. Direct binding studies revealed that both DC-SIGN and DC-SIGNR were able to bind independently to the recombinant globular head modules ghA, ghB, and ghC, with ghB being the preferential binder. C1q appeared to interact with DC-SIGN or DC-SIGNR in a manner similar to IgG. Mutational analysis using single amino acid substitutions within the globular head modules showed that TyrB175 and LysB136 were critical for the C1q–DC-SIGN/DC-SIGNR interaction. Competitive studies revealed that gC1qR and ghB shared overlapping binding sites on DC-SIGN, implying that HIV-1 transmission by DCs could be modulated due to the interplay of gC1qR-C1q with DC-SIGN. Since C1q, gC1qR, and DC-SIGN can individually bind HIV-1, we examined how C1q and gC1qR modulated HIV-1–DC-SIGN interaction in an infection assay. Here, we report, for the first time, that C1q suppressed DC-SIGN-mediated transfer of HIV-1 to activated pooled peripheral blood mononuclear cells, although the globular head modules did not. The protective effect of C1q was negated by the addition of gC1qR. In fact, gC1qR enhanced DC-SIGN-mediated HIV-1 transfer, suggesting its role in HIV-1 pathogenesis. Our results highlight the consequences of multiple innate immune pattern recognition molecules forming a complex that can modify their functions in a way, which may be advantageous for the pathogen.
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Affiliation(s)
- Lina Pednekar
- Biosciences, College of Health and Life Sciences, Brunel University London , Uxbridge , UK
| | - Hrishikesh Pandit
- Department of Innate Immunity, National Institute for Research in Reproductive Health (ICMR) , Mumbai , India
| | - Basudev Paudyal
- Biosciences, College of Health and Life Sciences, Brunel University London , Uxbridge , UK
| | - Anuvinder Kaur
- Biosciences, College of Health and Life Sciences, Brunel University London , Uxbridge , UK
| | - Maha Ahmed Al-Mozaini
- Department of Infection and Immunity, King Faisal Specialist Hospital and Research Centre , Riyadh , Saudi Arabia
| | - Lubna Kouser
- Biosciences, College of Health and Life Sciences, Brunel University London , Uxbridge , UK
| | - Berhane Ghebrehiwet
- Department of Medicine, State University of New York , Stony Brook, NY , USA
| | - Daniel A Mitchell
- Clinical Sciences Research Laboratories, University of Warwick , Coventry , UK
| | - Taruna Madan
- Department of Innate Immunity, National Institute for Research in Reproductive Health (ICMR) , Mumbai , India
| | - Uday Kishore
- Biosciences, College of Health and Life Sciences, Brunel University London , Uxbridge , UK
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48
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Bandini S, Macagno M, Hysi A, Lanzardo S, Conti L, Bello A, Riccardo F, Ruiu R, Merighi IF, Forni G, Iezzi M, Quaglino E, Cavallo F. The non-inflammatory role of C1q during Her2/neu-driven mammary carcinogenesis. Oncoimmunology 2016; 5:e1253653. [PMID: 28123895 DOI: 10.1080/2162402x.2016.1253653] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Revised: 10/12/2016] [Accepted: 10/23/2016] [Indexed: 12/13/2022] Open
Abstract
There is an ever increasing amount of evidence to support the hypothesis that complement C1q, the first component of the classical complement pathway, is involved in the regulation of cancer growth, in addition to its role in fighting infections. It has been demonstrated that C1q is expressed in the microenvironment of various types of human tumors, including breast adenocarcinomas. This study compares carcinogenesis progression in C1q deficient (neuT-C1KO) and C1q competent neuT mice in order to investigate the role of C1q in mammary carcinogenesis. Significantly accelerated autochthonous neu+ carcinoma progression was paralleled by accelerated spontaneous lung metastases occurrence in C1q deficient mice. Surprisingly, this effect was not caused by differences in the tumor-infiltrating cells or in the activation of the complement classical pathway, since neuT-C1KO mice did not display a reduction in C3 fragment deposition at the tumor site. By contrast, a significant higher number of intratumor blood vessels and a decrease in the activation of the tumor suppressor WW domain containing oxidoreductase (WWOX) were observed in tumors from neuT-C1KO as compare with neuT mice. In parallel, an increase in Her2/neu expression was observed on the membrane of tumor cells. Taken together, our findings suggest that C1q plays a direct role both on halting tumor angiogenesis and on inducing apoptosis in mammary cancer cells by coordinating the signal transduction pathways linked to WWOX and, furthermore, highlight the role of C1q in mammary tumor immune surveillance regardless of complement system activation.
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Affiliation(s)
- Silvio Bandini
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino , Torino, Italy
| | - Marco Macagno
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino , Torino, Italy
| | - Albana Hysi
- Department of Medicine Science, Center of Excellence on Aging and Translational Medicine (CeSI-Met), G. d'Annunzio University of Chieti Pescara , Italy
| | - Stefania Lanzardo
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino , Torino, Italy
| | - Laura Conti
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino , Torino, Italy
| | - Amanda Bello
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino , Torino, Italy
| | - Federica Riccardo
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino , Torino, Italy
| | - Roberto Ruiu
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino , Torino, Italy
| | - Irene Fiore Merighi
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino , Torino, Italy
| | - Guido Forni
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino , Torino, Italy
| | - Manuela Iezzi
- Department of Medicine Science, Center of Excellence on Aging and Translational Medicine (CeSI-Met), G. d'Annunzio University of Chieti Pescara , Italy
| | - Elena Quaglino
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino , Torino, Italy
| | - Federica Cavallo
- Department of Molecular Biotechnology and Health Sciences, Molecular Biotechnology Center, University of Torino , Torino, Italy
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49
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Kölm R, Schaller M, Roumenina LT, Niemiec I, Kremer Hovinga JA, Khanicheh E, Kaufmann BA, Hopfer H, Trendelenburg M. Von Willebrand Factor Interacts with Surface-Bound C1q and Induces Platelet Rolling. THE JOURNAL OF IMMUNOLOGY 2016; 197:3669-3679. [PMID: 27698012 DOI: 10.4049/jimmunol.1501876] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Accepted: 09/07/2016] [Indexed: 01/20/2023]
Abstract
Premature atherosclerosis and thrombotic complications are major causes of morbidity and mortality in patients with systemic lupus erythematosus (SLE). However, the high incidence of these complications cannot be explained by traditional risk factors alone, suggesting direct effects of an activated immune system on hemostasis. The unexpected nucleotide sequence homology between SLE patient-derived autoantibodies against complement C1q (Fab anti-C1q) and von Willebrand factor (VWF) led us to investigate a potential interaction between the complement and hemostatic systems on the level of initiating molecules. VWF was found to bind to surface-bound C1q under static conditions. The binding could specifically be inhibited by Fab anti-C1q and C1q-derived peptides. Under shear stress the C1q-VWF interaction was enhanced, resembling the binding of VWF to collagen I. Additionally, we could show that C1q-VWF complexes induced platelet rolling and firm adhesion. Furthermore, we observed VWF binding to C1q-positive apoptotic microparticles and cholesterol crystals, as well as increased VWF deposition in C1q-positive glomeruli of SLE patients compared with control nephropathy. We show, to our knowledge for the first time, binding of VWF to C1q and thus a direct interaction between starter molecules of hemostasis and the classical pathway of complement. This direct interaction might contribute to the pathogenic mechanisms in complement-mediated, inflammatory diseases.
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Affiliation(s)
- Robert Kölm
- Department of Biomedicine, University Hospital, 4031 Basel, Switzerland;
| | - Monica Schaller
- University Clinic of Hematology and Central Hematology Laboratory, Bern University Hospital, 3010 Bern, Switzerland.,Department of Clinical Research, University of Bern, 3010 Bern, Switzerland
| | - Lubka T Roumenina
- INSERM UMR S-1138, Cordeliers Research Center, Complement and Diseases Team, 75006 Paris, France
| | - Iga Niemiec
- Department of Biomedicine, University Hospital, 4031 Basel, Switzerland
| | - Johanna A Kremer Hovinga
- University Clinic of Hematology and Central Hematology Laboratory, Bern University Hospital, 3010 Bern, Switzerland.,Department of Clinical Research, University of Bern, 3010 Bern, Switzerland
| | - Elham Khanicheh
- Department of Biomedicine, University Hospital, 4031 Basel, Switzerland
| | - Beat A Kaufmann
- Department of Biomedicine, University Hospital, 4031 Basel, Switzerland.,Division of Cardiology, University Hospital, 4031 Basel, Switzerland
| | - Helmut Hopfer
- Institute of Pathology, University Hospital, 4031 Basel, Switzerland; and
| | - Marten Trendelenburg
- Department of Biomedicine, University Hospital, 4031 Basel, Switzerland.,Division of Internal Medicine, University Hospital, 4031 Basel, Switzerland
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50
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Agostinis C, Tedesco F, Bulla R. Alternative functions of the complement protein C1q at embryo implantation site. J Reprod Immunol 2016; 119:74-80. [PMID: 27687635 DOI: 10.1016/j.jri.2016.09.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 09/01/2016] [Accepted: 09/16/2016] [Indexed: 12/22/2022]
Abstract
Complement component C1q is one of the recognition molecules of the complement system which can serve several functions unrelated to complement activation. This molecule is produced at foeto-maternal interface by macrophages as wells as by decidual endothelial cells and invading trophoblast. Foetal trophoblast cells migrating through the decidua in the early stages of pregnancy synthesize and express C1q on their surface, which is actively involved in promoting trophoblast endovascular and interstitial invasion of the decidua. These functions are mediated by two cell surface receptors, gC1qR and α4β1 integrin, which promote trophoblast adhesion and migration through the activation of ERK1/2 MAPKs. C1q-/- mice manifest increased frequency of foetal resorption, reduced foetal weight, and smaller litter size when compared to their wild-type counterparts, suggesting that defective local production of C1q may be involved in pregnancy disorders, such as pre-eclampsia. C1q acts also as a strong angiogenic factor and promotes neovascularization. These studies suggest novel and unexpected roles of this complement component in physiological and pathological pregnancies.
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Affiliation(s)
- Chiara Agostinis
- Institute for Maternal and Child Health, IRCCS Burlo Garofolo, 34137, Trieste, Italy
| | | | - Roberta Bulla
- Department of Life Sciences, University of Trieste, 34127, Trieste, Italy.
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