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Shen CR, Jia XY, Luo W, Olaru F, Cui Z, Zhao MH, Borza DB. Laminin-521 is a Novel Target of Autoantibodies Associated with Lung Hemorrhage in Anti-GBM Disease. J Am Soc Nephrol 2021; 32:1887-1897. [PMID: 33893224 PMCID: PMC8455270 DOI: 10.1681/asn.2020101431] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 02/28/2021] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Antiglomerular basement membrane (anti-GBM) disease is characterized by GN and often pulmonary hemorrhage, mediated by autoantibodies that typically recognize cryptic epitopes within α345(IV) collagen-a major component of the glomerular and alveolar basement membranes. Laminin-521 is another major GBM component and a proven target of pathogenic antibodies mediating GN in animal models. Whether laminin-521 is a target of autoimmunity in human anti-GBM disease is not yet known. METHODS A retrospective study of circulating autoantibodies from 101 patients with anti-GBM/Goodpasture's disease and 85 controls used a solid-phase immunoassay to measure IgG binding to human recombinant laminin-521 with native-like structure and activity. RESULTS Circulating IgG autoantibodies binding to laminin-521 were found in about one third of patients with anti-GBM antibody GN, but were not detected in healthy controls or in patients with other glomerular diseases. Autoreactivity toward laminin-521 was significantly more common in patients with anti-GBM GN and lung hemorrhage, compared with those with kidney-limited disease (51.5% versus 23.5%, P=0.005). Antilaminin-521 autoantibodies were predominantly of IgG1 and IgG4 subclasses and significantly associated with lung hemorrhage (P=0.005), hemoptysis (P=0.008), and smoking (P=0.01), although not with proteinuria or serum creatinine at diagnosis. CONCLUSIONS Besides α345(IV) collagen, laminin-521 is another major autoantigen targeted in anti-GBM disease. Autoantibodies to laminin-521 may have the potential to promote lung injury in anti-GBM disease by increasing the total amount of IgG bound to the alveolar basement membranes.
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Affiliation(s)
- Cong-rong Shen
- Renal Division, Institute of Nephrology, Peking University First Hospital, Key Laboratory of Renal Disease, Ministry of Health of China, Beijing, China
| | - Xiao-yu Jia
- Renal Division, Institute of Nephrology, Peking University First Hospital, Key Laboratory of Renal Disease, Ministry of Health of China, Beijing, China
| | - Wentian Luo
- Division of Nephrology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Florina Olaru
- Division of Nephrology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Zhao Cui
- Renal Division, Institute of Nephrology, Peking University First Hospital, Key Laboratory of Renal Disease, Ministry of Health of China, Beijing, China
| | - Ming-hui Zhao
- Renal Division, Institute of Nephrology, Peking University First Hospital, Key Laboratory of Renal Disease, Ministry of Health of China, Beijing, China,Peking-Tsinghua Center for Life Sciences, Beijing, China
| | - Dorin-Bogdan Borza
- Department of Microbiology, Immunology and Physiology, Meharry Medical College, Nashville, Tennessee,Correspondence: Dr. Dorin-Bogdan Borza, Department of Microbiology, Immunology and Physiology, Meharry Medical College, 1005 Dr. D. B. Todd, Jr. Boulevard, Nashville, TN 37208.
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2
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Pokidysheva EN, Seeger H, Pedchenko V, Chetyrkin S, Bergmann C, Abrahamson D, Cui ZW, Delpire E, Fervenza FC, Fidler AL, Fogo AB, Gaspert A, Grohmann M, Gross O, Haddad G, Harris RC, Kashtan C, Kitching AR, Lorenzen JM, McAdoo S, Pusey CD, Segelmark M, Simmons A, Voziyan PA, Wagner T, Wüthrich RP, Zhao MH, Boudko SP, Kistler AD, Hudson BG. Collagen IV α345 dysfunction in glomerular basement membrane diseases. I. Discovery of a COL4A3 variant in familial Goodpasture's and Alport diseases. J Biol Chem 2021; 296:100590. [PMID: 33774048 PMCID: PMC8100070 DOI: 10.1016/j.jbc.2021.100590] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 03/11/2021] [Accepted: 03/24/2021] [Indexed: 02/06/2023] Open
Abstract
Diseases of the glomerular basement membrane (GBM), such as Goodpasture’s disease (GP) and Alport syndrome (AS), are a major cause of chronic kidney failure and an unmet medical need. Collagen IVα345 is an important architectural element of the GBM that was discovered in previous research on GP and AS. How this collagen enables GBM to function as a permselective filter and how structural defects cause renal failure remain an enigma. We found a distinctive genetic variant of collagen IVα345 in both a familial GP case and four AS kindreds that provided insights into these mechanisms. The variant is an 8-residue appendage at the C-terminus of the α3 subunit of the α345 hexamer. A knock-in mouse harboring the variant displayed GBM abnormalities and proteinuria. This pathology phenocopied AS, which pinpointed the α345 hexamer as a focal point in GBM function and dysfunction. Crystallography and assembly studies revealed underlying hexamer mechanisms, as described in Boudko et al. and Pedchenko et al. Bioactive sites on the hexamer surface were identified where pathogenic pathways of GP and AS converge and, potentially, that of diabetic nephropathy (DN). We conclude that the hexamer functions include signaling and organizing macromolecular complexes, which enable GBM assembly and function. Therapeutic modulation or replacement of α345 hexamer could therefore be a potential treatment for GBM diseases, and this knock-in mouse model is suitable for developing gene therapies.
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Affiliation(s)
- Elena N Pokidysheva
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA; Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Harald Seeger
- Nephrology Division, University Hospital Zurich, Zurich, Switzerland
| | - Vadim Pedchenko
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA; Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Sergei Chetyrkin
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA; Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Carsten Bergmann
- Department of Medicine and Nephrology, University Hospital Freiburg, Freiburg, Germany; Medizinische Genetik Mainz, Limbach Genetics, Mainz, Germany
| | - Dale Abrahamson
- Department of Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - Zhao Wei Cui
- Renal Division, Peking University First Hospital, Beijing, PR China
| | - Eric Delpire
- Department of Anesthesiology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Fernando C Fervenza
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, Minnesota, USA
| | - Aaron L Fidler
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA; Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, Tennessee, USA; Aspirnaut Program, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Agnes B Fogo
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA; Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Ariana Gaspert
- Department of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Maik Grohmann
- Medizinische Genetik Mainz, Limbach Genetics, Mainz, Germany
| | - Oliver Gross
- Clinic of Nephrology and Rheumatology, University Medical Center Goettingen, University of Goettingen, Goettingen, Germany
| | - George Haddad
- Nephrology Division, University Hospital Zurich, Zurich, Switzerland
| | - Raymond C Harris
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Clifford Kashtan
- Division of Pediatric Nephrology, University of Minnesota Medical School and Masonic Children's Hospital, Minneapolis, Minnesota, USA
| | - A Richard Kitching
- Centre for Inflammatory Diseases, Monash University Department Medicine, Nephrology, Monash Health, Clayton, VIC, Australia
| | - Johan M Lorenzen
- Nephrology Division, University Hospital Zurich, Zurich, Switzerland
| | - Stephen McAdoo
- Centre for Inflammatory Disease, Imperial College London, London, UK
| | - Charles D Pusey
- Centre for Inflammatory Disease, Imperial College London, London, UK
| | - Marten Segelmark
- Department of Biochemistry, Vanderbilt University, Nashville, Tennessee, USA
| | - Alicia Simmons
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA; Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, Tennessee, USA; Aspirnaut Program, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Paul A Voziyan
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA; Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Timo Wagner
- Medizinische Genetik Mainz, Limbach Genetics, Mainz, Germany
| | - Rudolf P Wüthrich
- Nephrology Division, University Hospital Zurich, Zurich, Switzerland
| | - Ming-Hui Zhao
- Renal Division, Peking University First Hospital, Beijing, PR China
| | - Sergei P Boudko
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA; Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, Tennessee, USA; Department of Biochemistry, Vanderbilt University, Nashville, Tennessee, USA
| | - Andreas D Kistler
- Department of Internal Medicine, Kantonsspital Frauenfeld, Frauenfeld, Switzerland
| | - Billy G Hudson
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA; Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, Tennessee, USA; Aspirnaut Program, Vanderbilt University Medical Center, Nashville, Tennessee, USA; Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee, USA; Department of Biochemistry, Vanderbilt University, Nashville, Tennessee, USA; Center for Structural Biology, Vanderbilt University, Nashville, Tennessee, USA; Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee, USA; Vanderbilt-Ingram Cancer Center, Vanderbilt University, Nashville, Tennessee, USA.
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3
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Gray PE, McCarthy H, Siggs OM, Saleem MA, O' Brien T, Frith K, Ziegler JB, Kitching AR, Fogo AB, Hudson BG, Pedchenko V. Molecular Analysis of Goodpasture's Disease Following Hematopoietic Stem Cell Transplant in a Pediatric Patient, Recalls the Conformeropathy of Wild-Type Anti-GBM Disease. Front Immunol 2019; 10:2659. [PMID: 31798588 PMCID: PMC6868084 DOI: 10.3389/fimmu.2019.02659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 10/28/2019] [Indexed: 11/28/2022] Open
Abstract
Background: Goodpasture's disease (GP) is mediated by autoantibodies that bind the glomerular and alveolar basement membrane, causing rapidly progressive glomerulonephritis with or without pulmonary hemorrhage. The autoantibodies bind neoepitopes formed upon disruption of the quaternary structure of α345NC1 hexamer, a critical structural domain of α345 collagen IV scaffolds. Hexamer disruption leads to a conformational changes that transitions α3 and α5NC1 subunits into immunogens, however, the trigger remains unknown. This contrasts with another anti-GBM disease, Alports' post-transplant nephritis (APTN), where the pathogenic alloantibody binds directly to native NC1 hexamer. The current report includes the first study of antigenic specificity and allo-incompatability in anti-GBM disease occurring after allogeneic haematopoietic stem cell transplant (HSCT). Results: The anti-GBM antibodies were found to be directed predominantly against the EA epitope of the α3 NC1 monomer of collagen IV and developed rapidly in patient serum reaching peak level within 5 weeks. Autoantibody binding to native α345NC1 hexamer was minimal; however, binding was greatly increased upon dissociation of the native hexamer. There were no polymorphic genetic differences between donor and recipient collagen IV genes which would be predicted to cause a significant NC1 conformational change or to provide a target for antibody binding. Both patient and donor possessed the Goodpasture's susceptibility HLA-allele DRB1*1501. Conclusions: The current report includes the first in-depth study of allo-incompatability and antigenic specificity in anti-GBM disease occurring after allogeneic haematopoietic stem cell transplant (HSCT). No polymorphic genetic differences were identified between donor and recipient collagen IV genes which would be predicted to provide a target for antibody binding. Furthermore, autoantibody binding to native α345NC1 hexamer was minimal, increasing greatly upon dissociation of the native hexamer, resembling wild-type GP diseases and marking this as the first example of a post-HSCT conformeropathy.
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Affiliation(s)
- Paul E Gray
- Department of Immunology and Infectious Diseases, Sydney Children's Hospital, Sydney, NSW, Australia.,Faculty of Medicine, School of Women's and Children's Health, University of New South Wales, Sydney, NSW, Australia
| | - Hugh McCarthy
- Department of Nephrology, Sydney Children's Hospital, Sydney, NSW, Australia
| | - Owen M Siggs
- Immunology Division, Garvan Institute of Medical Research, Darlinghurst, NSW, Australia
| | - Moin A Saleem
- Faculty of Health Sciences, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Tracy O' Brien
- Faculty of Medicine, School of Women's and Children's Health, University of New South Wales, Sydney, NSW, Australia.,Kid's Cancer Centre, Sydney Children's Hospital, Sydney, NSW, Australia
| | - Katie Frith
- Department of Immunology and Infectious Diseases, Sydney Children's Hospital, Sydney, NSW, Australia
| | - John B Ziegler
- Department of Immunology and Infectious Diseases, Sydney Children's Hospital, Sydney, NSW, Australia.,Faculty of Medicine, School of Women's and Children's Health, University of New South Wales, Sydney, NSW, Australia
| | - A Richard Kitching
- Faculty of Medicine, Nursing & Health Sciences, Centre for Inflammatory Diseases, Monash University, Clayton, VIC, Australia
| | - Agnes B Fogo
- Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, TN, United States.,Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, TN, United States.,Division of Nephrology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Billy G Hudson
- Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, TN, United States.,Division of Nephrology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, United States.,Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN, United States
| | - Vadim Pedchenko
- Division of Nephrology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, United States
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4
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Boudko SP, Danylevych N, Hudson BG, Pedchenko VK. Basement membrane collagen IV: Isolation of functional domains. Methods Cell Biol 2017; 143:171-185. [PMID: 29310777 DOI: 10.1016/bs.mcb.2017.08.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Collagen IV is a major constituent of basement membranes, specialized form of extracellular matrix that provides a mechanical support for tissues, serves as a polyvalent ligand for cell adhesion receptors and as a scaffold for other proteins, and plays a key role in tissue genesis, differentiation, homeostasis, and remodeling. Collagen IV underlies the pathogenesis of several human disorders including Goodpasture's disease, Alport's syndrome, diabetic nephropathy, angiopathy, and porencephaly. While the isolation of the collagen IV molecules from tissues is an ultimate prerequisite for structural and functional studies, it has been always hampered by the protein insolubility due to extensive intermolecular crosslinking and noncovalent associations with other components of basement membranes. In this chapter, we present methods for the isolation of collagen IV fragments from basement membranes or from extracellular matrix deposited by cultured cells, and the recombinant expression alternative. These methods are useful to address the fundamental questions on the role of collagen IV in tissue genesis under the normal and pathological conditions.
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Affiliation(s)
- Sergei P Boudko
- Center for Matrix Biology, Nashville, TN, United States; Vanderbilt University Medical Center, Nashville, TN, United States
| | - Neonila Danylevych
- Center for Matrix Biology, Nashville, TN, United States; Vanderbilt University Medical Center, Nashville, TN, United States
| | - Billy G Hudson
- Center for Matrix Biology, Nashville, TN, United States; Vanderbilt University Medical Center, Nashville, TN, United States; Vanderbilt Ingram Cancer Center, Nashville, TN, United States; Vanderbilt Institute of Chemical Biology, Nashville, TN, United States
| | - Vadim K Pedchenko
- Center for Matrix Biology, Nashville, TN, United States; Vanderbilt University Medical Center, Nashville, TN, United States.
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5
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Colon S, Page-McCaw P, Bhave G. Role of Hypohalous Acids in Basement Membrane Homeostasis. Antioxid Redox Signal 2017; 27:839-854. [PMID: 28657332 PMCID: PMC5647493 DOI: 10.1089/ars.2017.7245] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 06/26/2017] [Indexed: 12/19/2022]
Abstract
SIGNIFICANCE Basement membranes (BMs) are sheet-like structures of specialized extracellular matrix that underlie nearly all tissue cell layers including epithelial, endothelial, and muscle cells. BMs not only provide structural support but are also critical for the development, maintenance, and repair of organs. Animal heme peroxidases generate highly reactive hypohalous acids extracellularly and, therefore, target BMs for oxidative modification. Given the importance of BMs in tissue structure and function, hypohalous acid-mediated oxidative modifications of BM proteins represent a key mechanism in normal development and pathogenesis of disease. Recent Advances: Peroxidasin (PXDN), a BM-associated animal heme peroxidase, generates hypobromous acid (HOBr) to form sulfilimine cross-links within the collagen IV network of BM. These cross-links stabilize BM and are critical for animal tissue development. These findings highlight a paradoxical anabolic role for HOBr, which typically damages protein structure leading to dysfunction. CRITICAL ISSUES The molecular mechanism whereby PXDN uses HOBr as a reactive intermediate to cross-link collagen IV, yet avoid collateral damage to nearby BM proteins, remains unclear. FUTURE DIRECTIONS The exact identification and functional impact of specific hypohalous acid-mediated modifications of BM proteins need to be addressed to connect these modifications to tissue development and pathogenesis of disease. As seen with the sulfilimine cross-link of collagen IV, hypohalous acid oxidative events may be beneficial in select situations rather than uniformly deleterious. Antioxid. Redox Signal. 27, 839-854.
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Affiliation(s)
- Selene Colon
- Division of Nephrology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
- Department of Biological Sciences, Tennessee State University, Nashville, Tennessee
- Vanderbilt Center for Kidney Disease, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Patrick Page-McCaw
- Division of Nephrology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
- Vanderbilt Center for Kidney Disease, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Gautam Bhave
- Division of Nephrology, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
- Vanderbilt Center for Kidney Disease, Vanderbilt University Medical Center, Nashville, Tennessee
- Vanderbilt Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, Tennessee
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee
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6
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Mao M, Alavi MV, Labelle-Dumais C, Gould DB. Type IV Collagens and Basement Membrane Diseases. CURRENT TOPICS IN MEMBRANES 2015; 76:61-116. [DOI: 10.1016/bs.ctm.2015.09.002] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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7
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Raymond T, Gorbunova E, Gavrilovskaya IN, Mackow ER. Pathogenic hantaviruses bind plexin-semaphorin-integrin domains present at the apex of inactive, bent alphavbeta3 integrin conformers. Proc Natl Acad Sci U S A 2005; 102:1163-8. [PMID: 15657120 PMCID: PMC545842 DOI: 10.1073/pnas.0406743102] [Citation(s) in RCA: 86] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The alphavbeta3 integrins are linked to human bleeding disorders, and pathogenic hantaviruses regulate the function of alphavbeta3 integrins and cause acute vascular diseases. alphavbeta3 integrins are present in either extended (active) or dramatically bent (inactive) structures, and interconversion of alphavbeta3 conformers dynamically regulates integrin functions. Here, we show that hantaviruses bind human alphavbeta3 integrins and that binding maps to the plexin-semaphorin-integrin (PSI) domain present at the apex of inactive, bent, alphavbeta3-integrin structures. Pathogenic hantaviruses [New York-1 virus (NY-1V) and Hantaan virus (HTNV)] bind immobilized beta3 polypeptides containing the PSI domain, and human (but not murine) beta3 polypeptides inhibit hantavirus infectivity. Substitution of human beta3 residues 1-39 for murine beta3 residues directed pathogenic hantavirus infection of nonpermissive CHO cells expressing chimeric alphavbeta3 receptors. Mutation of murine beta3 Asn-39 to Asp-39 present in human beta3 homologues (N39D) permitted hantavirus infection of cells and specified PSI domain residue interactions with pathogenic hantaviruses. In addition, cell-surface expression of alphavbeta3 locked in an inactive bent conformation conferred hantavirus infectivity of CHO cells. Our findings indicate that hantaviruses bind to a unique domain exposed on inactive integrins and, together with prior findings, suggest that this interaction restricts alphavbeta3 functions that regulate vascular permeability. Our findings suggest mechanisms for viruses to direct hemorrhagic or vascular diseases and provide a distinct target for modulating alphavbeta3-integrin functions.
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Affiliation(s)
- Tracy Raymond
- Department of Medicine and Molecular Genetics and Microbiology, Stony Brook University, Stony Brook, NY 11794, USA
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8
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Hudson BG, Tryggvason K, Sundaramoorthy M, Neilson EG. Alport's syndrome, Goodpasture's syndrome, and type IV collagen. N Engl J Med 2003; 348:2543-56. [PMID: 12815141 DOI: 10.1056/nejmra022296] [Citation(s) in RCA: 608] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Billy G Hudson
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN 37232-2358, USA
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9
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Borza DB, Bondar O, Ninomiya Y, Sado Y, Naito I, Todd P, Hudson BG. The NC1 domain of collagen IV encodes a novel network composed of the alpha 1, alpha 2, alpha 5, and alpha 6 chains in smooth muscle basement membranes. J Biol Chem 2001; 276:28532-40. [PMID: 11375996 DOI: 10.1074/jbc.m103690200] [Citation(s) in RCA: 105] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Type IV collagen, the major component of basement membranes (BMs), is a family of six homologous chains (alpha1-alpha6) that have a tissue-specific distribution. The chains assemble into supramolecular networks that differ in the chain composition. In this study, a novel network was identified and characterized in the smooth muscle BMs of aorta and bladder. The noncollagenous (NC1) hexamers solubilized by collagenase digestion were fractionated by affinity chromatography using monoclonal antibodies against the alpha5 and alpha6 NC1 domains and then characterized by two-dimensional gel electrophoresis and Western blotting. Both BMs were found to contain a novel alpha1.alpha2.alpha5.alpha6 network besides the classical alpha1.alpha2 network. The alpha1.alpha2.alpha5.alpha6 network represents a new arrangement in which a protomer (triple-helical isoform) containing the alpha5 and alpha6 chains is linked through NC1-NC1 interactions to an adjoining protomer composed of the alpha1 and alpha2 chains. Re-association studies revealed that the NC1 domains contain recognition sequences sufficient to encode the assembly of both networks. These findings, together with previous ones, indicate that the six chains of type IV collagen are distributed in three major networks (alpha1.alpha2, alpha3.alpha4.alpha5, and alpha1.alpha2.alpha5.alpha6) whose chain composition is encoded by the NC1 domains. The existence of the alpha1.alpha2.alpha5.alpha6 network provides a molecular explanation for the concomitant loss of alpha5 and alpha6 chains from the BMs of patients with X-linked Alport's syndrome.
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MESH Headings
- Animals
- Aorta/metabolism
- Blotting, Western
- Cattle
- Collagen/chemistry
- Electrophoresis, Gel, Two-Dimensional
- Electrophoresis, Polyacrylamide Gel
- Fluorescent Antibody Technique, Indirect
- Genetic Linkage
- Humans
- Immunohistochemistry
- Microscopy, Electron
- Models, Biological
- Muscle, Smooth/cytology
- Muscle, Smooth/metabolism
- Mutation
- Nephritis, Hereditary/genetics
- Protein Binding
- Protein Conformation
- Protein Isoforms
- Protein Structure, Tertiary
- Urinary Bladder/metabolism
- X Chromosome
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Affiliation(s)
- D B Borza
- Department of Biochemistry and Molecular Biology, University of Kansas Medical Center, Kansas City, Kansas 66160, USA
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10
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Kalluri R, Gattone VH, Hudson BG. Identification and localization of type IV collagen chains in the inner ear cochlea. Connect Tissue Res 2001; 37:143-50. [PMID: 9643653 DOI: 10.3109/03008209809028906] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Mutations in the genes encoding the alpha3(IV), alpha4(IV) and alpha5(IV) chains of type IV collagen have been implicated in the pathogenesis of Alport's syndrome, a hereditary disorder characterized by progressive nephropathy and sensorineural deafness. The known expression of these chains in kidney basement membranes supports the contention that they play a crucial role in the ultrafiltration function. Whether they play a role in auditory signal transduction remains unknown as heretofore, they have not been identified in the inner ear. In the present study, the expression of type IV collagen in cochlea of the inner ear of guinea pigs was determined. All six alpha-chains of type IV collagen were identified by biochemical and immunological methods. By indirect immunofluorescence, alpha1(IV) and alpha2(IV) chains were localized to the spiral limbus, basilar membrane and tectorial membrane. The alpha3(IV), alpha4(IV), alpha5(IV) and alpha6(IV) chains localized exclusively to the tectorial membrane and basilar membrane. These results suggest a possible role of type IV collagen chains in the active tuning of the basilar and tectorial membrane, an essential step in frequency discrimination and amplification of auditory signals.
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Affiliation(s)
- R Kalluri
- Department of Biochemistry/Molecular Biology and Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City 66160, USA
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11
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Nakamura A, Yuasa T, Ujike A, Ono M, Nukiwa T, Ravetch JV, Takai T. Fcgamma receptor IIB-deficient mice develop Goodpasture's syndrome upon immunization with type IV collagen: a novel murine model for autoimmune glomerular basement membrane disease. J Exp Med 2000; 191:899-906. [PMID: 10704470 PMCID: PMC2195851 DOI: 10.1084/jem.191.5.899] [Citation(s) in RCA: 171] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
The combination of hemorrhagic pneumonitis and rapidly progressive glomerulonephritis is a characteristic feature of Goodpasture's syndrome (GPS), an autoimmune disease resulting from the interaction of pathogenic anti-collagen type IV (C-IV) antibodies with alveolar and glomerular basement membranes. Lack of a suitable animal model for this fatal disease has hampered both a basic understanding of its etiology and the development of therapeutic strategies. We now report a novel model for GPS using mice deficient in a central regulatory receptor for immunoglobulin (Ig)G antibody expression and function, the type IIB Fc receptor for IgG (FcgammaRIIB). Mutant mice immunized with bovine C-IV reproducibly develop massive pulmonary hemorrhage with neutrophil and macrophage infiltration and crescentic glomerulonephritis. The distinctive linear, ribbon-like deposition of IgG immune complex seen in GPS was observed along the glomerular and tubulointerstitial membranes of diseased animals. These results highlight the role of FcgammaRIIB in maintaining tolerance and suggest that it may play a role in the pathogenesis of human GPS.
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Affiliation(s)
- Akira Nakamura
- Department of Experimental Immunology, Institute of Development, Aging and Cancer, Tohoku University, Sendai 980-8575, Japan
- Department of Respiratory Oncology and Molecular Medicine, Institute of Development, Aging and Cancer, Tohoku University, Sendai 980-8575, Japan
- Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Corporation (JST), Tokyo 101-0062, Japan
| | - Takae Yuasa
- Department of Experimental Immunology, Institute of Development, Aging and Cancer, Tohoku University, Sendai 980-8575, Japan
- Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Corporation (JST), Tokyo 101-0062, Japan
| | - Azusa Ujike
- Department of Experimental Immunology, Institute of Development, Aging and Cancer, Tohoku University, Sendai 980-8575, Japan
- Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Corporation (JST), Tokyo 101-0062, Japan
| | - Masao Ono
- Department of Experimental Immunology, Institute of Development, Aging and Cancer, Tohoku University, Sendai 980-8575, Japan
- Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Corporation (JST), Tokyo 101-0062, Japan
| | - Toshihiro Nukiwa
- Department of Respiratory Oncology and Molecular Medicine, Institute of Development, Aging and Cancer, Tohoku University, Sendai 980-8575, Japan
| | - Jeffrey V. Ravetch
- Laboratory of Molecular Genetics and Immunology, The Rockefeller University, New York, New York 10021
| | - Toshiyuki Takai
- Department of Experimental Immunology, Institute of Development, Aging and Cancer, Tohoku University, Sendai 980-8575, Japan
- Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Corporation (JST), Tokyo 101-0062, Japan
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12
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Kalluri R, Torre A, Shield CF, Zamborsky ED, Werner MC, Suchin E, Wolf G, Helmchen UM, van den Heuvel LP, Grossman R, Aradhye S, Neilson EG. Identification of alpha3, alpha4, and alpha5 chains of type IV collagen as alloantigens for Alport posttransplant anti-glomerular basement membrane antibodies. Transplantation 2000; 69:679-83. [PMID: 10708133 DOI: 10.1097/00007890-200002270-00038] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Alport syndrome is a hereditary disorder of basement membranes especially affecting the kidneys, ears, and eyes. Some patients who undergo renal transplantation lose their kidneys as a result of posttransplant anti-glomerular basement membrane (anti-GBM) disease. METHODS In the present study, we analyzed serum from 21 unselected Alport patients who underwent renal transplantation. Eleven samples were from patients without posttransplant anti-GBM nephritis, and 10 were from patients with this disease. RESULTS Thirteen serum samples [10 alport posttransplant nephritis serum (APTN) and three Alport posttransplant serum (APT)] revealed linear binding to the GBM by indirect immunofluorescence. By using direct ELISA and immunoblotting with GBM constituents and type IV collagen NC1 domains from bovine, human, and recombinant sources, we detected anti-GBM antibodies in all Alport patients in varying titers. Five samples showed specific reactivity to the alpha3 chain, four to the alpha5 chain, six to both alpha3 and alpha5 chains, one to the alpha3 and alpha4 chains, and two to the alpha3, alpha4, and alpha5 chains of type IV collagen. The varied spectrum of reactivities was present equally in nephritic and non-nephritic sera. Ten control samples from non-Alport transplant patients did not exhibit specific binding to the GBM. CONCLUSIONS These results suggest that the absence of alpha3, alpha4, and alpha5 chains of type IV collagen in the Alport kidney leads to alloantibodies in all Alport patients who receive transplants, irrespective of whether they develop nephritis or not. Although all Alport transplant patients develop this humoral response, only a select few develop anti-GBM disease. We suggest that this difference could be attributable to a genotypic effect on the ability of some individuals to launch a cell-mediated immune response.
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Affiliation(s)
- R Kalluri
- Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts 02215, USA.
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13
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Maes B, Vanwalleghem J, Kuypers D, Van Damme B, Waer M, Vanrenterghem Y. IgA antiglomerular basement membrane disease associated with bronchial carcinoma and monoclonal gammopathy. Am J Kidney Dis 1999; 33:E3. [PMID: 10074603 DOI: 10.1016/s0272-6386(99)70324-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Antiglomerular basement membrane (anti-GBM) disease is characterized by a linear deposition of immunoglobulins along the glomerular basement membrane. A 67-year-old man with a recently discovered monoclonal gammopathy of unknown significance (MGUS) presented with microscopic hematuria, nephrotic-range proteinuria, and rapidly deteriorating renal function after a pneumonia. Renal histology showed a crescentic glomerulonephritis; immunohistology showed intense linear staining of the GBM with immunoglobulin A (IgA) and moderate linear staining with kappa and lambda light chains. Screening for systemic disease, including diabetes mellitus, lupus erythematodes disseminatus, cryoglobulinemia, was negative. Serological tests for detection of anti-GBM antibodies were positive for IgA class and negative for IgG. Further examination indicated a bronchial carcinoma T2N2M0. This clinical report adds new information to the spectrum of anti-GBM disease and suggests that neoplasia may be associated with unusual exposure of and/or immune response to epitopes in the GBM.
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Affiliation(s)
- B Maes
- Departments of Nephrology and Pathology, University Hospital, Leuven B-3000, Gasthuisberg, Belgium. . ac.be
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14
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Kahsai TZ, Enders GC, Gunwar S, Brunmark C, Wieslander J, Kalluri R, Zhou J, Noelken ME, Hudson BG. Seminiferous tubule basement membrane. Composition and organization of type IV collagen chains, and the linkage of alpha3(IV) and alpha5(IV) chains. J Biol Chem 1997; 272:17023-32. [PMID: 9202017 DOI: 10.1074/jbc.272.27.17023] [Citation(s) in RCA: 74] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Seminiferous tubule basement membrane (STBM) plays an important role in spermatogenesis. In the present study, the composition and structural organization of type IV collagen of bovine STBM was investigated. STBM was found to be composed of all six alpha-chains of type IV collagen based upon immunocytochemical and biochemical analysis. The content of alpha3(IV) chain (40%) and the alpha4(IV) chain (18%) was substantially higher than in any other basement membrane collagen. The supramolecular structure of the six alpha(IV) chains was investigated using pseudolysin (EC 3.4.24.26) digestion to excise triple-helical molecules, subsequent collagenase digestion to produce NC1 hexamers and antibody affinity chromatography to resolve populations of NC1 hexamers. The hexamers, which reflect specific arrangements of alpha(IV) chains, were characterized for their alpha(IV) chain composition using high performance liquid chromatography, two-dimensional electrophoresis, and immunoblotting with alpha(IV) chain-specific antibodies. Three major hexamer populations were found that represent the classical network of the alpha1(IV) and alpha2(IV) chains and two novel networks, one composed of the alpha1(IV)-alpha6(IV) chains and the other composed of the alpha3(IV)-alpha6(IV) chains. The results establish a structural linkage between the alpha3(IV) and alpha5(IV) chains, suggesting a molecular basis for the conundrum in which mutations in the gene encoding the alpha5(IV) chain cause defective assembly of the alpha3(IV) chain in the glomerular basement membrane of patients with Alport syndrome.
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Affiliation(s)
- T Z Kahsai
- Departments of Biochemistry and Molecular Biology, University of Kansas Medical Center, Kansas City, Kansas 66160-7421, USA
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15
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Kalluri R, Shield CF, Todd P, Hudson BG, Neilson EG. Isoform switching of type IV collagen is developmentally arrested in X-linked Alport syndrome leading to increased susceptibility of renal basement membranes to endoproteolysis. J Clin Invest 1997; 99:2470-8. [PMID: 9153291 PMCID: PMC508088 DOI: 10.1172/jci119431] [Citation(s) in RCA: 209] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Normal glomerular capillaries filter plasma through a basement membrane (GBM) rich in alpha3(IV), alpha4(IV), and alpha5(IV) chains of type IV collagen. We now show that these latter isoforms are absent biochemically from the glomeruli in patients with X-linked Alport syndrome (XAS). Their GBM instead retain a fetal distribution of alpha1(IV) and alpha2(IV) isoforms because they fail to developmentally switch their alpha-chain use. The anomalous persistence of these fetal isoforms of type IV collagen in the GBM in XAS also confers an unexpected increase in susceptibility to proteolytic attack by collagenases and cathepsins. The incorporation of cysteine-rich alpha3(IV), alpha4(IV), and alpha5(IV) chains into specialized basement membranes like the GBM may have normally evolved to protectively enhance their resistance to proteolytic degradation at the site of glomerular filtration. The relative absence of these potentially protective collagen IV isoforms in GBM from XAS may explain the progressive basement membrane splitting and increased damage as these kidneys deteriorate.
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Affiliation(s)
- R Kalluri
- Penn Center for Molecular Studies of Kidney Diseases, Renal Electrolyte and Hypertension Division, University of Pennsylvania Medical School, Philadelphia, Pennsylvania 19104-6144, USA
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16
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Miner JH, Sanes JR. Molecular and functional defects in kidneys of mice lacking collagen alpha 3(IV): implications for Alport syndrome. J Cell Biol 1996; 135:1403-13. [PMID: 8947561 PMCID: PMC2121079 DOI: 10.1083/jcb.135.5.1403] [Citation(s) in RCA: 241] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Collagen IV is a major structural component of all basal laminae (BLs). Six collagen IV alpha chains are present in mammals; alpha 1 and alpha 2(IV) are broadly expressed in embryos and adults, whereas alpha 3-6(IV) are restricted to a defined subset of BLs. In the glomerular BL of the kidney, the alpha 1 and alpha 2(IV) chains are replaced by the alpha 3-5(IV) chains as development proceeds. In humans, mutation of the collagen alpha 3, alpha 4, or alpha 5(IV) chain genes results in a delayed onset renal disease called Alport syndrome. We show here that mice lacking collagen alpha 3(IV) display a renal phenotype strikingly similar to Alport syndrome: decreased glomerular filtration (leading to uremia), compromised glomerular integrity (leading to proteinuria), structural changes in glomerular BL, and glomerulonephritis. Interestingly, numerous changes in the molecular composition of glomerular BL precede the onset of renal dysfunction; these include loss of collagens alpha 4 and alpha 5(IV), retention of collagen alpha 1/2(IV), appearance of fibronectin and collagen VI, and increased levels of perlecan. We suggest that these alterations contribute, along with loss of collagen IV isoforms per se, to renal pathology.
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Affiliation(s)
- J H Miner
- Department of Anatomy and Neurobiology, Washington University School of Medicine, St. Louis, Missouri 63110, USA.
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17
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Kalluri R, Sun MJ, Hudson BG, Neilson EG. The Goodpasture autoantigen. Structural delineation of two immunologically privileged epitopes on alpha3(IV) chain of type IV collagen. J Biol Chem 1996; 271:9062-8. [PMID: 8621555 DOI: 10.1074/jbc.271.15.9062] [Citation(s) in RCA: 66] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
The family of type IV collagen comprises six chains numbered alpha1 through alpha6. The alpha3(IV) NC1 domain is the primary target antigen for autoantibodies from patients with anti-basement membrane disease and Goodpasture syndrome. Earlier peptide studies suggested that the last 36 amino acids of the alpha3 NC1 domain probably contains one recognition site for Goodpasture autoantibodies, and an algorithm analysis of secondary structure from a later study predicted a second possible upstream epitope near the triple helix junction. We have used several analytic approaches to evaluate the likelihood of two immunologic epitopes for the Goodpasture antigen. In our first set of studies, peptide antibodies directed against these two putative regions co-inhibited Goodpasture autoantibodies binding to denatured human alpha3(IV) NC1 monomer by nearly 80%, with the helix-junction region of the alpha3 NC1 domain contributing 26% of the binding sites and the C-terminal region contributing the remaining 50%. Second, both of these candidate regions are normally sequestered within the associated alpha3(IV) NC1 hexamer but become more visible for binding by anti-peptide antibodies upon their dissociation, a property that is shared by the Goodpasture autoantibodies. Third, segment deletions of recombinant alpha3 NC1 domain further confirmed the presence of two serologic binding sites. Finally, we looked more closely at the C-terminal binding region of the alpha3(IV) NC1 domain. Since the lysines in that region have been previously advanced as possible contact sites, we created several substitutions within the C-terminal epitope of the alpha3 NC1 domain. Substitution of lysines to alanines revealed lysines 219 and 229 as essential for antibody binding to this distal site; no lysines were present in the NC1 part of the helix-NC1 junction region. Substitutions involving arginine and cysteines to alanines in the same C-terminal region did not produce significant reductions in antibody binding. In summary, our findings characterize two Goodpasture epitopes confined to each end of the alpha3 NC1 domain; one is lysine-dependent, and the other is not. We propose, as a hypothetical model, that these two immunologically privileged regions fold to form an optimal pathogenic structure within the NC1 domain of the alpha3 chain. These sites are subsequently concealed by NC1 hexamer assembly of type IV collagen.
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Affiliation(s)
- R Kalluri
- Penn Center for Molecular Studies of Kidney Diseases, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
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18
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Dhami D, Shute JK. Mechanisms of epithelial damage: are there parallels between bullous skin diseases and asthma? Clin Exp Allergy 1994; 24:1005-9. [PMID: 7874598 PMCID: PMC7162100 DOI: 10.1111/j.1365-2222.1994.tb02735.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- D Dhami
- Immunopharmacology Group, Southampton General Hospital, UK
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19
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Kalluri R, Gattone VH, Noelken ME, Hudson BG. The alpha 3 chain of type IV collagen induces autoimmune Goodpasture syndrome. Proc Natl Acad Sci U S A 1994; 91:6201-5. [PMID: 8016138 PMCID: PMC44166 DOI: 10.1073/pnas.91.13.6201] [Citation(s) in RCA: 66] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Human Goodpasture syndrome is a lethal form of autoimmune disease that is characterized by pulmonary hemorrhage and glomerulonephritis. The tissue injury is mediated by autoantibodies that bind to glomerular and alveolar basement membrane. The target autoantigen is alpha 3(IV) collagen, one of six genetically distinct chains that comprise type IV collagen, and the epitope is sublocalized to the noncollagenous domain (NC1) of the alpha 3 chain. The present study reports the unique capacity of alpha 3(IV)NC1 dimer from bovine kidney to aberrantly engage the immune system of rabbits to respond to self, mimicking the organ-specific form of the human disease, whereas the other chains of type IV collagen are nonpathogenic. However, alpha 3(IV)NC1 hexamer was nonpathogenic, suggesting the exposure of a pathogenic epitope upon dissociation of hexamer into dimers. Exposure of the pathogenic epitope by infection or organic solvents, events which are thought to precede Goodpasture syndrome, may be the principal factor in the etiology of the disease. The pathogenicity of alpha 3(IV) collagen brings full circle a decade of research that has identified four novel chains (alpha 3-alpha 6) of type IV collagen.
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Affiliation(s)
- R Kalluri
- Department of Biochemistry, University of Kansas Medical Center, Kansas City 66160
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20
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Hudson BG, Reeders ST, Tryggvason K. Type IV collagen: structure, gene organization, and role in human diseases. Molecular basis of Goodpasture and Alport syndromes and diffuse leiomyomatosis. J Biol Chem 1993. [DOI: 10.1016/s0021-9258(19)74270-7] [Citation(s) in RCA: 421] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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21
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Reddy GK, Gunwar S, Kalluri R, Hudson BG, Noelken ME. Structure and composition of type IV collagen of bovine aorta. BIOCHIMICA ET BIOPHYSICA ACTA 1993; 1157:241-51. [PMID: 8323954 DOI: 10.1016/0304-4165(93)90106-i] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
To determine the chain composition of type IV collagen of bovine thoracic aorta, we analyzed collagenase-solubilized carboxyl-terminal noncollagenous (NC1)-domains by high-pressure liquid chromatography, two-dimensional electrophoresis, immunoblotting and enzyme-linked immunoassay. In addition to the classical alpha 1- and alpha 2-chains, we found small amounts of the recently discovered alpha 3-, alpha 4- and alpha 5-chains. The alpha 3- and alpha 4-chains were, collectively, 7-13% of the total, and the alpha 5-chain was present in a low amount. Seventy-nine percent of the NC1-domains were dimerized. Immunolocalization studies on sections of aorta showed that the alpha 3- and alpha 5-chains were present, along with alpha 1- and alpha 2-chains, in the subendothelium and media. In capillaries of the media, the alpha 3-chain was found at relatively high levels and was co-localized with alpha 1- and alpha 2-chains. Digestion of aorta with Pseudomonas aeruginosa elastase yielded soluble multimolecular assemblies of type IV collagen. Electron microscopy results provided a direct demonstration of the supramolecular structure, in which the collagen molecules were tetramerized at the amino-terminal end and dimerized at the carboxyl-terminal end.
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Affiliation(s)
- G K Reddy
- Department of Biochemistry and Molecular Biology, University of Kansas Medical Center, Kansas City 66160-7421
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22
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Hudson BG, Kalluri R, Gunwar S, Noelken ME, Mariyama M, Reeders ST. Molecular characteristics of the Goodpasture autoantigen. Kidney Int 1993; 43:135-9. [PMID: 7679455 DOI: 10.1038/ki.1993.22] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Goodpasture syndrome is an autoimmune disease causing rapidly progressive glomerulonephritis and pulmonary hemorrhage. The clinical manifestations are caused by autoantibodies that bind to a constituent, termed the Goodpasture autoantigen, of alveolar and glomerular basement membranes. Searches for the identity of this constituent have recently culminated in the discovery of two new chains (alpha 3 and alpha 4) of type IV collagen and the identification of the alpha 3 chain as the Goodpasture autoantigen. The gene, COL4A3, encoding this autoantigen was recently cloned and localized to the q35-37 region of chromosome 2. The major protomeric form of the alpha 3 chain is a homotrimer. The alpha 3-protomers associate through NC1-to-NC1 interactions mainly with each other to form a suprastructure, although some associate with protomers containing the alpha 1(IV) and alpha 2(IV) chains. The alpha 3-protomers also form suprastructures involving triple helical interactions of three or more protomers. The Goodpasture epitope is localized to the carboxylterminal region of the alpha 3(IV) chain, encompassing the last 36 residues of the chain, as the primary interaction site, and its structure is discontinuous.
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Affiliation(s)
- B G Hudson
- Department of Biochemistry and Molecular Biology, University of Kansas Medical Center, Kansas City
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23
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Goodpasture syndrome. Localization of the epitope for the autoantibodies to the carboxyl-terminal region of the alpha 3(IV) chain of basement membrane collagen. J Biol Chem 1991. [DOI: 10.1016/s0021-9258(18)54385-4] [Citation(s) in RCA: 81] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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24
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Crouch EC. Molecular diversity of basement membrane collagen: elucidation of the Goodpasture's epitope. Am J Respir Cell Mol Biol 1991; 5:99-100. [PMID: 1716446 DOI: 10.1165/ajrcmb/5.2.99] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Affiliation(s)
- E C Crouch
- Department of Pathology, Jewish Hospital, Washington University Medical Center, St. Louis, Missouri 63110
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