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Pokidysheva EN, Redhair N, Ailsworth O, Page-McCaw P, Rollins-Smith L, Jamwal VS, Ohta Y, Bächinger HP, Murawala P, Flajnik M, Fogo AB, Abrahamson D, Hudson JK, Boudko SP, Hudson BG. Collagen IV of basement membranes: II. Emergence of collagen IV α345 enabled the assembly of a compact GBM as an ultrafilter in mammalian kidneys. J Biol Chem 2023; 299:105459. [PMID: 37977222 PMCID: PMC10746531 DOI: 10.1016/j.jbc.2023.105459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 10/28/2023] [Accepted: 10/31/2023] [Indexed: 11/19/2023] Open
Abstract
The collagen IVα345 (Col-IVα345) scaffold, the major constituent of the glomerular basement membrane (GBM), is a critical component of the kidney glomerular filtration barrier. In Alport syndrome, affecting millions of people worldwide, over two thousand genetic variants occur in the COL4A3, COL4A4, and COL4A5 genes that encode the Col-IVα345 scaffold. Variants cause loss of scaffold, a suprastructure that tethers macromolecules, from the GBM or assembly of a defective scaffold, causing hematuria in nearly all cases, proteinuria, and often progressive kidney failure. How these variants cause proteinuria remains an enigma. In a companion paper, we found that the evolutionary emergence of the COL4A3, COL4A4, COL4A5, and COL4A6 genes coincided with kidney emergence in hagfish and shark and that the COL4A3 and COL4A4 were lost in amphibians. These findings opened an experimental window to gain insights into functionality of the Col-IVα345 scaffold. Here, using tissue staining, biochemical analysis and TEM, we characterized the scaffold chain arrangements and the morphology of the GBM of hagfish, shark, frog, and salamander. We found that α4 and α5 chains in shark GBM and α1 and α5 chains in amphibian GBM are spatially separated. Scaffolds are distinct from one another and from the mammalian Col-IVα345 scaffold, and the GBM morphologies are distinct. Our findings revealed that the evolutionary emergence of the Col-IVα345 scaffold enabled the genesis of a compact GBM that functions as an ultrafilter. Findings shed light on the conundrum, defined decades ago, whether the GBM or slit diaphragm is the primary filter.
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Affiliation(s)
- Elena N Pokidysheva
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA; Aspirnaut, Vanderbilt University Medical Center, Nashville, Tennessee, USA; Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, Tennessee, USA.
| | - Neve Redhair
- Aspirnaut, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Octavia Ailsworth
- Aspirnaut, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Patrick Page-McCaw
- 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
| | - Louise Rollins-Smith
- Department of Pathology Microbiology and Immunology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | | | - Yuko Ohta
- Department of Microbiology and Immunology, School of Medicine, University of Maryland, Baltimore, Maryland, USA
| | | | - Prayag Murawala
- Mount Desert Island Biological Laboratory, Bar Harbor, Maine, USA; Clinic for Kidney and Hypertension Diseases, Hannover Medical School, Hannover, Germany
| | - Martin Flajnik
- Department of Microbiology and Immunology, School of Medicine, University of Maryland, Baltimore, Maryland, 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
| | - Dale Abrahamson
- Department of Cell Biology and Physiology, The Jared Grantham Kidney Institute, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - Julie K Hudson
- Aspirnaut, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - 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
| | - Billy G Hudson
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA; Aspirnaut, Vanderbilt University Medical Center, Nashville, Tennessee, USA; Center for Matrix Biology, 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; Vanderbilt-Ingram Cancer Center, Vanderbilt University, Nashville, Tennessee, USA; Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee, USA; Department of Biological Sciences, Vanderbilt University, Nashville, Tennessee, USA; Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee, USA
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2
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Boudko SP, Pedchenko VK, Pokidysheva EN, Budko AM, Baugh R, Coates PT, Fidler AL, Hudson HM, Ivanov SV, Luer C, Pedchenko T, Preston RL, Rafi M, Vanacore R, Bhave G, Hudson JK, Hudson BG. Collagen IV of basement membranes: III. Chloride pressure is a primordial innovation that drives and maintains the assembly of scaffolds. J Biol Chem 2023; 299:105318. [PMID: 37797699 PMCID: PMC10656227 DOI: 10.1016/j.jbc.2023.105318] [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: 05/20/2023] [Revised: 09/18/2023] [Accepted: 09/20/2023] [Indexed: 10/07/2023] Open
Abstract
Collagen IV scaffold is a primordial innovation enabling the assembly of a fundamental architectural unit of epithelial tissues-a basement membrane attached to polarized cells. A family of six α-chains (α1 to α6) coassemble into three distinct protomers that form supramolecular scaffolds, noted as collagen IVα121, collagen IVα345, and collagen IVα121-α556. Chloride ions play a pivotal role in scaffold assembly, based on studies of NC1 hexamers from mammalian tissues. First, Cl- activates a molecular switch within trimeric NC1 domains that initiates protomer oligomerization, forming an NC1 hexamer between adjoining protomers. Second, Cl- stabilizes the hexamer structure. Whether this Cl--dependent mechanism is of fundamental importance in animal evolution is unknown. Here, we developed a simple in vitro method of SDS-PAGE to determine the role of solution Cl- in hexamer stability. Hexamers were characterized from 34 animal species across 15 major phyla, including the basal Cnidarian and Ctenophora phyla. We found that solution Cl- stabilized the quaternary hexamer structure across all phyla except Ctenophora, Ecdysozoa, and Rotifera. Further analysis of hexamers from peroxidasin knockout mice, a model for decreasing hexamer crosslinks, showed that solution Cl- also stabilized the hexamer surface conformation. The presence of sufficient chloride concentration in solution or "chloride pressure" dynamically maintains the native form of the hexamer. Collectively, our findings revealed that chloride pressure on the outside of cells is a primordial innovation that drives and maintains the quaternary and conformational structure of NC1 hexamers of collagen IV scaffolds.
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Affiliation(s)
- 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.
| | - Vadim K 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
| | - 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
| | | | - Rachel Baugh
- Department of Medical Education and Administration, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Patrick Toby Coates
- Central Northern Adelaide Renal and Transplantation Service, Royal Adelaide Hospital, Adelaide, Australia
| | - 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
| | - Heather M Hudson
- Department of Rehabilitation Medicine, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - Sergey V Ivanov
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Carl Luer
- Mote Marine Laboratory, Sarasota, Florida, USA
| | - Tetyana 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
| | - Robert L Preston
- School of Biological Sciences, Illinois State University, Normal, Illinois, USA
| | - Mohamed Rafi
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Roberto Vanacore
- 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
| | - Gautam Bhave
- 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
| | - Julie K Hudson
- Department of Medical Education and Administration, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - 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; Department of Biochemistry, Vanderbilt University, Nashville, Tennessee, USA; Vanderbilt-Ingram Cancer Center, Vanderbilt University, Nashville, Tennessee, USA; Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee, USA; Department of Biological Sciences, Vanderbilt University, Nashville, Tennessee, USA; Department of Cell and Developmental Biology, Vanderbilt University, Nashville, Tennessee, USA; Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
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3
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Wang J, Lin X, Shen Z, Li G, Hu L, Li Q, Li Y, Wang J, Zhang C, Wang S, Wu X. AKT from dental epithelium to papilla promotes odontoblast differentiation. Differentiation 2023; 134:52-60. [PMID: 37898102 DOI: 10.1016/j.diff.2023.10.002] [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: 05/14/2023] [Revised: 09/26/2023] [Accepted: 10/11/2023] [Indexed: 10/30/2023]
Abstract
Epithelial-mesenchymal interactions occur during tooth development. The dental epithelium (DE) is regarded as the signal center that regulates tooth morphology. However, the mechanism by which DE regulates the differentiation of mesenchyme-derived dental papilla (DP) into odontoblasts remains unclear. Using miniature pigs as a model, we analyzed the expression profiles of the DE and DP during odontoblast differentiation using high-throughput RNA sequencing. The phosphatidylinositol-3-kinase (PI3K)/AKT pathway is one of the most enriched pathways in both DE and DP. The PI3K/AKT pathway was first activated in the inner enamel epithelium but not in the DP on embryonic day 50. This pathway was then activated in the odontoblast layer on embryonic day 60. We showed that AKT activation promoted odontoblast differentiation of DP cells. We further demonstrated that activation of PI3K/AKT signaling in the DE effectively increased the expression levels of AKT and dentin sialophosphoprotein in DP cells. Additionally, we found that DE cells secreted collagen type IV alpha 6 chain (COL4A6) downstream of epithelial AKT signaling to positively regulate mesenchymal AKT levels. Therefore, our data suggest that PI3K/AKT signaling from the DE to the DP promotes odontoblast differentiation via COL4A6 secretion.
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Affiliation(s)
- Jiangyi Wang
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Laboratory of Oral Health and Beijing Stomatological Hospital, Capital Medical University, Beijing, 100050, China
| | - Xiaoyu Lin
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Laboratory of Oral Health and Beijing Stomatological Hospital, Capital Medical University, Beijing, 100050, China
| | - Zongshan Shen
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Laboratory of Oral Health and Beijing Stomatological Hospital, Capital Medical University, Beijing, 100050, China
| | - Guoqing Li
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Laboratory of Oral Health and Beijing Stomatological Hospital, Capital Medical University, Beijing, 100050, China
| | - Lei Hu
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Laboratory of Oral Health and Beijing Stomatological Hospital, Capital Medical University, Beijing, 100050, China; Department of Prosthodontics, Capital Medical University School of Stomatology, Beijing, 100050, China
| | - Qiong Li
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Laboratory of Oral Health and Beijing Stomatological Hospital, Capital Medical University, Beijing, 100050, China
| | - Yang Li
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Laboratory of Oral Health and Beijing Stomatological Hospital, Capital Medical University, Beijing, 100050, China
| | - Jinsong Wang
- Department of Biochemistry and Molecular Biology, Capital Medical University School of Basic Medical Sciences, Beijing, 100069, China
| | - Chunmei Zhang
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Laboratory of Oral Health and Beijing Stomatological Hospital, Capital Medical University, Beijing, 100050, China
| | - Songlin Wang
- Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Beijing Laboratory of Oral Health and Beijing Stomatological Hospital, Capital Medical University, Beijing, 100050, China; Department of Biochemistry and Molecular Biology, Capital Medical University School of Basic Medical Sciences, Beijing, 100069, China; Academician Workstation for Oral-Maxillofacial Regenerative Medicine, Central South University, Changsha, 410008, China.
| | - Xiaoshan Wu
- Academician Workstation for Oral-Maxillofacial Regenerative Medicine, Central South University, Changsha, 410008, China; Department of Oral and Maxillofacial Surgery, Xiangya Hospital, Central South University, Changsha, 410008, China.
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4
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Ghannam SF, Rutland CS, Allegrucci C, Mongan NP, Rakha E. Encapsulated papillary carcinoma of the breast: does it have a native basement membrane? Histopathology 2023; 83:376-393. [PMID: 37232543 DOI: 10.1111/his.14939] [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: 11/22/2022] [Revised: 04/08/2023] [Accepted: 05/01/2023] [Indexed: 05/27/2023]
Abstract
BACKGROUND Encapsulated papillary carcinoma (EPC) is surrounded by a thick fibrous capsule-like structure, which is interpreted as a thickened basement membrane (BM). This study aimed to describe the geometric characteristics of the EPC capsule and to refine whether it is an expansion of the BM or a stromal reactive process. MATERIAL AND METHODS In all, 100 cases were divided into four groups: EPC, ductal carcinoma in situ (DCIS), normal breast tissue and invasive tumours, with an additional encapsulated papillary thyroid carcinoma (EPTC) control group. Representative slides from each case were stained with picrosirius red (PSR) stain and examined using polarised microscopy. Images were analysed using ImageJ, CT-FIRE, and Curve align image analysis programmes. RESULTS Compared to the normal and DCIS BM, the EPC group showed a significant increase of collagen fibre width, straightness, and density, and a decrease of fibre length. The EPC capsule showed less alignment of fibres with a more perpendicular arrangement, and it was enriched with disorganised collagen type I (stromal collagen) fibres. Compared to other groups, the EPC capsule showed significant variation in the thickness, evenness, distribution of collagen fibres, and significant intracapsular heterogeneity. Compared to BM-like material in the invasive group, the EPC capsule showed a higher density of collagen fibres with longer, straighter, and more aligned fibres, but there was no difference in the distribution of both collagen types I and III. Conversely, compared to EPTC, there were no differences between both EPC and EPTC capsules except that the fibres in the EPC capsule were straighter. Although differences between normal ducts and lobules and DCIS BM collagen fibre density, straightness, orientation, and alignment were detected, both were significantly different from EPC capsule. CONCLUSION This study provided evidence that the EPC capsule is a reactive process rather than a thickened native BM characteristic of normal and in situ lesions, which provides further evidence that EPC is an indolent invasive carcinoma based on capsule characteristics.
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Affiliation(s)
- Suzan F Ghannam
- Division of Cancer and Stem Cells, School of Medicine, The University of Nottingham, Nottingham, UK
- Department of Histology and Cell Biology, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
- Nottingham Breast Cancer Research Centre, Biodiscovery Institute, University of Nottingham, Nottingham, UK
| | - Catrin S Rutland
- School of Veterinary Medicine and Sciences, University of Nottingham, Nottingham, UK
| | - Cinzia Allegrucci
- Nottingham Breast Cancer Research Centre, Biodiscovery Institute, University of Nottingham, Nottingham, UK
- School of Veterinary Medicine and Sciences, University of Nottingham, Nottingham, UK
| | - Nigel P Mongan
- School of Veterinary Medicine and Sciences, University of Nottingham, Nottingham, UK
- Department of Pharmacology, Weill Cornell Medicine, New York, NY, USA
| | - Emad Rakha
- Division of Cancer and Stem Cells, School of Medicine, The University of Nottingham, Nottingham, UK
- Nottingham Breast Cancer Research Centre, Biodiscovery Institute, University of Nottingham, Nottingham, UK
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5
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LeBleu VS, Dai J, Tsutakawa S, MacDonald BA, Alge JL, Sund M, Xie L, Sugimoto H, Tainer J, Zon LI, Kalluri R. Identification of unique α4 chain structure and conserved antiangiogenic activity of α3NC1 type IV collagen in zebrafish. Dev Dyn 2023; 252:1046-1060. [PMID: 37002899 PMCID: PMC10524752 DOI: 10.1002/dvdy.590] [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: 08/14/2022] [Revised: 01/17/2023] [Accepted: 02/28/2023] [Indexed: 04/03/2023] Open
Abstract
BACKGROUND Type IV collagen is an abundant component of basement membranes in all multicellular species and is essential for the extracellular scaffold supporting tissue architecture and function. Lower organisms typically have two type IV collagen genes, encoding α1 and α2 chains, in contrast with the six genes in humans, encoding α1-α6 chains. The α chains assemble into trimeric protomers, the building blocks of the type IV collagen network. The detailed evolutionary conservation of type IV collagen network remains to be studied. RESULTS We report on the molecular evolution of type IV collagen genes. The zebrafish α4 non-collagenous (NC1) domain, in contrast with its human ortholog, contains an additional cysteine residue and lacks the M93 and K211 residues involved in sulfilimine bond formation between adjacent protomers. This may alter α4 chain interactions with other α chains, as supported by temporal and anatomic expression patterns of collagen IV chains during the zebrafish development. Despite the divergence between zebrafish and human α3 NC1 domain (endogenous angiogenesis inhibitor, Tumstatin), the zebrafish α3 NC1 domain exhibits conserved antiangiogenic activity in human endothelial cells. CONCLUSIONS Our work supports type IV collagen is largely conserved between zebrafish and humans, with a possible difference involving the α4 chain.
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Affiliation(s)
- Valerie S LeBleu
- Department of Cancer Biology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- Feinberg School of Medicine and Kellogg School of Management, Northwestern University, Chicago, Illinois, USA
- Division of Matrix Biology, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Jianli Dai
- Department of Cancer Biology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Susan Tsutakawa
- Lawrence Berkeley National Laboratory, University of California, Berkeley, California, USA
| | - Brian A MacDonald
- Division of Matrix Biology, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Joseph L Alge
- Department of Cancer Biology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- Department of Pediatrics, Baylor College of Medicine, Houston, Texas, USA
| | - Malin Sund
- Division of Matrix Biology, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Liang Xie
- Division of Matrix Biology, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Hikaru Sugimoto
- Department of Cancer Biology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- Division of Matrix Biology, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - John Tainer
- Department of Cancer Biology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- Department of Molecular and Cellular Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Leonard I Zon
- Department of Hematology/Oncology, Children's Hospital, Boston, Massachusetts, USA
| | - Raghu Kalluri
- Department of Cancer Biology, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
- Division of Matrix Biology, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
- Department of Bioengineering, Rice University, Houston, Texas, USA
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, USA
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6
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Zacchia M, Capolongo G, Del Vecchio Blanco F, Secondulfo F, Gupta N, Blasio G, Pollastro RM, Cervesato A, Piluso G, Gigliotti G, Torella A, Nigro V, Perna AF, Capasso G, Trepiccione F. Next-Generation Sequencing (NGS) Analysis Illustrates the Phenotypic Variability of Collagen Type IV Nephropathies. Genes (Basel) 2023; 14:genes14030764. [PMID: 36981034 PMCID: PMC10048128 DOI: 10.3390/genes14030764] [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: 01/24/2023] [Revised: 03/13/2023] [Accepted: 03/17/2023] [Indexed: 03/30/2023] Open
Abstract
Mutations in COL4A3-A5 cause a spectrum of glomerular disorders, including thin basement membrane nephropathy (TBMN) and Alport syndrome (AS). The wide application of next-generation sequencing (NGS) in the last few years has revealed that mutations in these genes are not limited to these clinical entities. In this study, 176 individuals with a clinical diagnosis of inherited kidney disorders underwent an NGS-based analysis to address the underlying cause; those who changed or perfected the clinical diagnosis after molecular analysis were selected. In 5 out of 83 individuals reaching a molecular diagnosis, the genetic result was unexpected: three individuals showed mutations in collagen type IV genes. These patients showed the following clinical pictures: (1) familial focal segmental glomerulosclerosis; (2) end-stage renal disease (ESRD) diagnosed incidentally in a 49-year-old man, with diffuse cortical calcifications on renal imaging; and (3) dysmorphic and asymmetric kidneys with multiple cysts and signs of tubule-interstitial defects. Genetic analysis revealed rare heterozygote/compound heterozygote COL4A4-A5 variants. Our study highlights the key role of NGS in the diagnosis of inherited renal disorders and shows the phenotype variability in patients carrying mutations in collagen type IV genes.
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Affiliation(s)
- Miriam Zacchia
- Department of Medical and Translational Sciences, University of Campania, Luigi Vanvitelli, 81100 Caserta, Italy
| | - Giovanna Capolongo
- Department of Medical and Translational Sciences, University of Campania, Luigi Vanvitelli, 81100 Caserta, Italy
| | | | - Floriana Secondulfo
- Department of Medical and Translational Sciences, University of Campania, Luigi Vanvitelli, 81100 Caserta, Italy
- Department of Precision Medicine, University of Campania, Luigi Vanvitelli, 81100 Caserta, Italy
| | - Neha Gupta
- Department of Medical and Translational Sciences, University of Campania, Luigi Vanvitelli, 81100 Caserta, Italy
- Biogem, Scarl, 83031 Ariano Irpino, Italy
| | - Giancarlo Blasio
- Department of Precision Medicine, University of Campania, Luigi Vanvitelli, 81100 Caserta, Italy
| | - Rosa Maria Pollastro
- Department of Medical and Translational Sciences, University of Campania, Luigi Vanvitelli, 81100 Caserta, Italy
| | - Angela Cervesato
- Department of Medical and Translational Sciences, University of Campania, Luigi Vanvitelli, 81100 Caserta, Italy
| | - Giulio Piluso
- Department of Precision Medicine, University of Campania, Luigi Vanvitelli, 81100 Caserta, Italy
| | - Giuseppe Gigliotti
- UOC Nefrologia e Dialisi, Ospedale Civile di Eboli "MM.SS. Addolorata", 84025 Eboli, Italy
| | - Annalaura Torella
- Department of Precision Medicine, University of Campania, Luigi Vanvitelli, 81100 Caserta, Italy
| | - Vincenzo Nigro
- Department of Precision Medicine, University of Campania, Luigi Vanvitelli, 81100 Caserta, Italy
- Telethon Institute of Genetics and Medicine, 80078 Pozzuoli, Italy
| | - Alessandra F Perna
- Department of Medical and Translational Sciences, University of Campania, Luigi Vanvitelli, 81100 Caserta, Italy
| | | | - Francesco Trepiccione
- Department of Medical and Translational Sciences, University of Campania, Luigi Vanvitelli, 81100 Caserta, Italy
- Biogem, Scarl, 83031 Ariano Irpino, Italy
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7
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Chen D, Chen X, Xie HT, Hatton MP, Liu X, Liu Y. Expression of extracellular matrix components in the meibomian gland. Front Med (Lausanne) 2022; 9:981610. [PMID: 36148459 PMCID: PMC9486096 DOI: 10.3389/fmed.2022.981610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 08/18/2022] [Indexed: 11/13/2022] Open
Abstract
Purpose Extracellular matrix (ECM) is a key component of the stem cell local microenvironment. Our study aims to explore the periglandular distribution of major components of ECM in the Meibomian gland (MG). Methods Human eyelids and mouse eyelids were collected and processed for immunofluorescence staining. Results Human MG tissues stained positive for collagen IV α1, collagen IV α2, collagen IV α5, and collagen IV α6 around the acini and duct, but negative for collagen IV α3 and collagen IV α4. The mouse MG were stained positive for the same collagen IV subunits as early as postnatal day 15. Laminin α2, laminin β1 and perlecan stained the regions surrounding the acini and the acinar/ductal junction in the human MG, but not the region around the duct. Tenascin-C was found specifically located at the junctions between the acini and the central ducts. Neither agrin nor endostatin was found in the human MG tissues. Conclusion The ECM expresses specific components in different regions around the MG, which may play a role in MG stem cell regulation, renewal, and regeneration.
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Affiliation(s)
- Di Chen
- Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiaomin Chen
- Department of Ophthalmology, Zhongnan Hospital, Wuhan University, Wuhan, China
| | - Hua-Tao Xie
- Department of Ophthalmology, Union Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Mark P. Hatton
- Ophthalmic Consultants of Boston, Boston, MA, United States
| | - Xiaowei Liu
- Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- *Correspondence: Xiaowei Liu
| | - Yang Liu
- Department of Ophthalmology, Zhongnan Hospital, Wuhan University, Wuhan, China
- Yang Liu
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8
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Wopperer FJ, Knaup KX, Stanzick KJ, Schneider K, Jobst-Schwan T, Ekici AB, Uebe S, Wenzel A, Schliep S, Schürfeld C, Seitz R, Bernhardt W, Gödel M, Wiesener A, Popp B, Stark KJ, Gröne HJ, Friedrich B, Weiß M, Basic-Jukic N, Schiffer M, Schröppel B, Huettel B, Beck BB, Sayer JA, Ziegler C, Büttner-Herold M, Amann K, Heid IM, Reis A, Pasutto F, Wiesener MS. Diverse molecular causes of unsolved autosomal dominant tubulointerstitial kidney diseases. Kidney Int 2022; 102:405-420. [DOI: 10.1016/j.kint.2022.04.031] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 03/22/2022] [Accepted: 04/08/2022] [Indexed: 12/11/2022]
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9
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Namba M, Kobayashi T, Kohno M, Koyano T, Hirose T, Fukushima M, Matsuyama M. Creation of X-linked Alport syndrome rat model with Col4a5 deficiency. Sci Rep 2021; 11:20836. [PMID: 34675305 PMCID: PMC8531394 DOI: 10.1038/s41598-021-00354-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 10/12/2021] [Indexed: 12/31/2022] Open
Abstract
Alport syndrome is an inherited chronic human kidney disease, characterized by glomerular basement membrane abnormalities. This disease is caused by mutations in COL4A3, COL4A4, or COL4A5 gene. The knockout mice for Col4α3, Col4α4, and Col4α5 are developed and well characterized for the study of Alport syndrome. However, disease progression and effects of pharmacological therapy depend on the genetic variability. This model was reliable only to mouse. In this study, we created a novel Alport syndrome rat model utilizing the rGONAD technology, which generated rat with a deletion of the Col4α5 gene. Col4α5 deficient rats showed hematuria, proteinuria, high levels of BUN, Cre, and then died at 18 to 28 weeks of age (Hemizygous mutant males). Histological and ultrastructural analyses displayed the abnormalities including parietal cell hyperplasia, mesangial sclerosis, and interstitial fibrosis. Then, we demonstrated that α3/α4/α5 (IV) and α5/α5/α6 (IV) chains of type IV collagen disrupted in Col4α5 deficient rats. Thus, Col4α5 mutant rat is a reliable candidate for the Alport syndrome model for underlying the mechanism of kidney diseases and further identifying potential therapeutic targets for human renal diseases.
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Affiliation(s)
- Masumi Namba
- Division of Molecular Genetics, Shigei Medical Research Institute, 2117 Yamada, Minami-ku, Okayama, 701-0202, Japan
| | - Tomoe Kobayashi
- Division of Molecular Genetics, Shigei Medical Research Institute, 2117 Yamada, Minami-ku, Okayama, 701-0202, Japan
| | - Mayumi Kohno
- Division of Molecular Genetics, Shigei Medical Research Institute, 2117 Yamada, Minami-ku, Okayama, 701-0202, Japan
| | - Takayuki Koyano
- Division of Molecular Genetics, Shigei Medical Research Institute, 2117 Yamada, Minami-ku, Okayama, 701-0202, Japan
| | - Takuo Hirose
- Division of Nephrology and Endocrinology, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, Sendai, Japan.,Department of Endocrinology and Applied Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Masaki Fukushima
- Division of Molecular Genetics, Shigei Medical Research Institute, 2117 Yamada, Minami-ku, Okayama, 701-0202, Japan.,Shigei Medical Research Hospital, Okayama, Japan
| | - Makoto Matsuyama
- Division of Molecular Genetics, Shigei Medical Research Institute, 2117 Yamada, Minami-ku, Okayama, 701-0202, Japan.
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10
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Nie DA, Xia CR, Huang KC, Liu J, Gan T, Wen C, Zeng ZP. Identification of a novel pathogenic COL4A3 gene mutation in a Chinese family with autosomal dominant Alport syndrome: A case report. Biomed Rep 2021; 15:90. [PMID: 34589218 DOI: 10.3892/br.2021.1466] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 07/28/2021] [Indexed: 11/06/2022] Open
Abstract
Alport syndrome (AS) is a genetic disease with various manifestations, including hematuria, proteinuria, impaired renal function and potential ocular or auditory abnormalities. Mutations in the collagen type IV α 3 chain (COL4A3), collagen type IV α 4 chain and collagen type IV α 5 chain genes encoding the α3, α4 and α5 chains of type IV collagen may undermine glomerular basement membrane (GBM) integrity and cause persistent renal deterioration. In the present study, the case of a Chinese family diagnosed with AS was examined. Pedigree investigations and whole exome sequencing (WES) revealed the presence of two heterozygous mutations (c.2603G>A; p.G868E, and c.583G>A; p.G195S) in the COL4A3 gene. p.G868E was identified as the 'culprit' mutation, whereas p.G195S was identified as an 'auxiliary' mutation for AS with regards to the manifestations observed in the patients carrying each of the gene mutations. In conclusion, these findings suggested that c.2603G>A may be a novel overt pathogenic mutation site for autosomal dominant AS. In addition, WES may be effective for the early diagnosis and medical intervention of AS, and may be widely used for AS prognosis prediction and pre-implantation genetic diagnosis.
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Affiliation(s)
- Da-An Nie
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Chao-Rui Xia
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Ke-Cheng Huang
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Jie Liu
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Ting Gan
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
| | - Cheng Wen
- Department of Endocrinology, Xiaogan First People's Hospital, Xiaogan, Hubei 432000, P.R. China
| | - Zhi-Peng Zeng
- Department of Rheumatology and Immunology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, P.R. China
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11
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Weckmann M, Bahmer T, Bülow Sand JM, Rank Rønnow S, Pech M, Vermeulen C, Faiz A, Leeming DJ, Karsdal MA, Lunding L, Oliver BGG, Wegmann M, Ulrich-Merzenich G, Juergens UR, Duhn J, Laumonnier Y, Danov O, Sewald K, Zissler U, Jonker M, König I, Hansen G, von Mutius E, Fuchs O, Dittrich AM, Schaub B, Happle C, Rabe KF, van de Berge M, Burgess JK, Kopp MV. COL4A3 is degraded in allergic asthma and degradation predicts response to anti-IgE therapy. Eur Respir J 2021; 58:13993003.03969-2020. [PMID: 34326188 DOI: 10.1183/13993003.03969-2020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 04/28/2021] [Indexed: 11/05/2022]
Abstract
BACKGROUND Asthma is a heterogeneous syndrome substantiating the urgent requirement for endotype-specific biomarkers. Dysbalance of fibrosis and fibrolysis in asthmatic lung tissue leads to reduced levels of the inflammation-protective collagen 4 (COL4A3). OBJECTIVE To delineate the degradation of COL4A3 in allergic airway inflammation and evaluate the resultant product as a biomarker for anti-IgE therapy response. METHODS The serological COL4A3 degradation marker C4Ma3 (Nordic Bioscience, Denmark) and serum cytokines were measured in the ALLIANCE cohort (pediatric cases/controls: 134/35; adult cases/controls: 149/31). Exacerbation of allergic airway disease in mice was induced by sensitising to OVA, challenge with OVA aerosol and instillation of poly(cytidylic-inosinic). Fulacimstat (chymase inhibitor, Bayer) was used to determine the role of mast cell chymase in COL4A3 degradation. Patients with cystic fibrosis (CF, n=14) and CF with allergic broncho-pulmonary aspergillosis (ABPA, n=9) as well as severe allergic, uncontrolled asthmatics (n=19) were tested for COL4A3 degradation. Omalizumab (anti-IgE) treatment was assessed by the Asthma Control Test. RESULTS Serum levels of C4Ma3 were increased in asthma in adults and children alike and linked to a more severe, exacerbating allergic asthma phenotype. In an experimental asthma mouse model, C4Ma3 was dependent on mast cell chymase. Serum C4Ma3 was significantly elevated in CF plus ABPA and at baseline predicted the success of the anti-IgE therapy in allergic, uncontrolled asthmatics (diagnostic odds ratio 31.5). CONCLUSION C4Ma3 level depend on lung mast cell chymase and are increased in a severe, exacerbating allergic asthma phenotype. C4Ma3 may serve as a novel biomarker to predict anti-IgE therapy response.
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Affiliation(s)
- Markus Weckmann
- Division of Pediatric Pneumology & Allergology, University Medical Center Schleswig-Holstein, Lübeck, Germany.,Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Germany
| | - Thomas Bahmer
- Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Germany.,Department of Pneumology, LungenClinic Grosshansdorf, Grosshansdorf, Germany
| | | | - Sarah Rank Rønnow
- Nordic Bioscience A/S, Herlev, Denmark.,The Faculty of Health Science, University of Southern Denmark, Odense, Denmark
| | - Martin Pech
- Division of Pediatric Pneumology & Allergology, University Medical Center Schleswig-Holstein, Lübeck, Germany.,Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Germany
| | - Cornelis Vermeulen
- Department of Pulmonary Diseases, University of Groningen, University Medical Center Groningen, , GRIAC (Groningen Research Institute for Asthma and COPD), Groningen, The Netherlands
| | - Alen Faiz
- Department of Pulmonary Diseases, University of Groningen, University Medical Center Groningen, , GRIAC (Groningen Research Institute for Asthma and COPD), Groningen, The Netherlands.,Department of Pathology & Medical Biology, University of Groningen, University Medical Center Groningen, , GRIAC (Groningen Research Institute for Asthma and COPD), Groningen, The Netherlands.,Woolcock Institute of Medical Research, The University of Sydney, Glebe, NSW, Australia.,School of Medical and Molecular Biosciences, University of Technology, Sydney, NSW, Australia
| | | | | | - Lars Lunding
- Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Germany.,Division of Asthma-Exacerbation & -Regulation; Program Area Asthma & Allergy, Leibniz-Center for Medicine and Biosciences Borstel
| | - Brian George G Oliver
- Woolcock Institute of Medical Research, The University of Sydney, Glebe, NSW, Australia.,School of Medical and Molecular Biosciences, University of Technology, Sydney, NSW, Australia
| | - Michael Wegmann
- Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Germany.,Division of Asthma-Exacerbation & -Regulation; Program Area Asthma & Allergy, Leibniz-Center for Medicine and Biosciences Borstel
| | | | - Uwe R Juergens
- Department of Pneumonology, Medical Clinic II, University Hospital Bonn
| | - Jannis Duhn
- Institute for Systemic Inflammation Research, University of Lübeck, Lübeck, Germany
| | - Yves Laumonnier
- Institute for Systemic Inflammation Research, University of Lübeck, Lübeck, Germany
| | - Olga Danov
- Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Member of the German Center for Lung Research (DZL), Hannover, Germany
| | - Katherina Sewald
- Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Member of the German Center for Lung Research (DZL), Hannover, Germany
| | - Ulrich Zissler
- Center of Allergy and Environment (ZAUM), Technical University of Munich and Helmholtz Center Munich, German Research Center for Environmental Health (CPC-M), Member of the German Center of Lung Research (DZL), Munich, Germany
| | - Marnix Jonker
- Department of Pulmonary Diseases, University of Groningen, University Medical Center Groningen, , GRIAC (Groningen Research Institute for Asthma and COPD), Groningen, The Netherlands.,Department of Pathology & Medical Biology, University of Groningen, University Medical Center Groningen, , GRIAC (Groningen Research Institute for Asthma and COPD), Groningen, The Netherlands
| | - Inke König
- Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Germany.,Institute for Medical Biometry and Statistics, University of Lübeck, Lübeck, Germany
| | - Gesine Hansen
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany.,Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Member of the German Center of Lung Research (DZL), Germany
| | - Erika von Mutius
- University Children's Hospital, Ludwig Maximilian's University, Munich, Germany.,German Research Center for Environmental Health (CPC-M), Member of the German Center of Lung Research (DZL), Munich, Germany
| | - Oliver Fuchs
- Division of Pediatric Pneumology & Allergology, University Medical Center Schleswig-Holstein, Lübeck, Germany.,Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Germany.,Department of Paediatric Respiratory Medicine, Inselspital, University Children's Hospital of Bern, University of Bern, Bern, Switzerland
| | - Anna-Maria Dittrich
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany.,Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Member of the German Center of Lung Research (DZL), Germany
| | - Bianca Schaub
- University Children's Hospital, Ludwig Maximilian's University, Munich, Germany.,German Research Center for Environmental Health (CPC-M), Member of the German Center of Lung Research (DZL), Munich, Germany
| | - Christine Happle
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany.,Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), Member of the German Center of Lung Research (DZL), Germany
| | - Klaus F Rabe
- Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Germany.,Department of Pneumology, LungenClinic Grosshansdorf, Grosshansdorf, Germany
| | - Maarten van de Berge
- Department of Pulmonary Diseases, University of Groningen, University Medical Center Groningen, , GRIAC (Groningen Research Institute for Asthma and COPD), Groningen, The Netherlands
| | - Janette Kay Burgess
- Department of Pathology & Medical Biology, University of Groningen, University Medical Center Groningen, , GRIAC (Groningen Research Institute for Asthma and COPD), Groningen, The Netherlands.,Woolcock Institute of Medical Research, The University of Sydney, Glebe, NSW, Australia.,Discipline of Pharmacology, Faculty of Medicine, The University of Sydney, NSW, Australia
| | - Matthias Volkmar Kopp
- Division of Pediatric Pneumology & Allergology, University Medical Center Schleswig-Holstein, Lübeck, Germany.,Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Germany.,Department of Paediatric Respiratory Medicine, Inselspital, University Children's Hospital of Bern, University of Bern, Bern, Switzerland
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12
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Tang S, Yonezawa T, Maeda Y, Ono M, Maeba T, Miyoshi T, Momota R, Tomono Y, Oohashi T. Lack of collagen α6(IV) chain in mice does not cause severe-to-profound hearing loss or cochlear malformation, a distinct phenotype from nonsyndromic hearing loss with COL4A6 missense mutation. PLoS One 2021; 16:e0249909. [PMID: 33848312 PMCID: PMC8043391 DOI: 10.1371/journal.pone.0249909] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Accepted: 03/26/2021] [Indexed: 11/18/2022] Open
Abstract
Congenital hearing loss affects 1 in every 1000 births, with genetic mutations contributing to more than 50% of all cases. X-linked nonsyndromic hereditary hearing loss is associated with six loci (DFNX1-6) and five genes. Recently, the missense mutation (c.1771G>A, p.Gly591Ser) in COL4A6, encoding the basement membrane (BM) collagen α6(IV) chain, was shown to be associated with X-linked congenital nonsyndromic hearing loss with cochlear malformation. However, the mechanism by which the COL4A6 mutation impacts hereditary hearing loss has not yet been elucidated. Herein, we investigated Col4a6 knockout (KO) effects on hearing function and cochlear formation in mice. Immunohistochemistry showed that the collagen α6(IV) chain was distributed throughout the mouse cochlea within subepithelial BMs underlying the interdental cells, inner sulcus cells, basilar membrane, outer sulcus cells, root cells, Reissner's membrane, and perivascular BMs in the spiral limbus, spiral ligament, and stria vascularis. However, the click-evoked auditory brainstem response analysis did not show significant changes in the hearing threshold of Col4a6 KO mice compared with wild-type (WT) mice with the same genetic background. In addition, the cochlear structures of Col4a6 KO mice did not exhibit morphological alterations, according to the results of high-resolution micro-computed tomography and histology. Hence, loss of Col4a6 gene expression in mice showed normal click ABR thresholds and normal cochlear formation, which differs from humans with the COL4A6 missense mutation c.1771G>A, p.Gly591Ser. Therefore, the deleterious effects in the auditory system caused by the missense mutation in COL4A6 are likely due to the dominant-negative effects of the α6(IV) chain and/or α5α6α5(IV) heterotrimer with an aberrant structure that would not occur in cases with loss of gene expression.
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Affiliation(s)
- Shaoying Tang
- Department of Molecular Biology and Biochemistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Tomoko Yonezawa
- Department of Molecular Biology and Biochemistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
- * E-mail:
| | - Yukihide Maeda
- Department of Otolaryngology-Head and Neck Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Mitsuaki Ono
- Department of Molecular Biology and Biochemistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Takahiro Maeba
- Department of Molecular Biology and Biochemistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Toru Miyoshi
- Department of Cardiovascular Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Ryusuke Momota
- Department of Human Morphology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Yasuko Tomono
- Division of Molecular and Cell Biology, Shigei Medical Research Institute, Okayama, Japan
| | - Toshitaka Oohashi
- Department of Molecular Biology and Biochemistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
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13
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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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14
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Nicol L, Srikanth P, Henriksen K, Sun S, Smith R, Karsdal MA, Nagamani SCS, Shapiro J, Lee B, Leder BZ, Orwoll E. Widespread disturbance in extracellular matrix collagen biomarker responses to teriparatide therapy in osteogenesis imperfecta. Bone 2021; 142:115703. [PMID: 33099032 DOI: 10.1016/j.bone.2020.115703] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 10/05/2020] [Accepted: 10/18/2020] [Indexed: 12/30/2022]
Abstract
Osteogenesis imperfecta (OI), a heritable disorder caused by abnormalities in synthesis or processing of type I collagen, is characterized by skeletal fragility. Type I collagen interacts with multiple components of the extracellular matrix (ECM) including other collagens types. Thus, alterations in structure or quantity may broadly affect ECM homeostasis. In fact, while OI is clinically categorized by severity of bone disease, patients can also present with extra-skeletal manifestations, including the pulmonary, muscle and cardiovascular systems. Parathyroid hormone (PTH) is a regulator of skeletal homeostasis but the receptor for PTH/PTH1R is expressed in a variety of other tissues. Given interactions between type I collagen with other collagens in the ECM and the potential for PTH action on tissues beyond the skeleton, we explored whether serum levels of non-type I collagens are altered in response to teriparatide (human parathyroid hormone 1-34). We measured biomarkers of collagens II, III, IV, V, and VI in serum from individuals with type I and types III/IV OI in response to an 18 month course of teriparatide or placebo. These results were compared to similar biomarker measures in postmenopausal (PM) women without OI treated with teriparatide. In type I OI, teriparatide therapy increased concentrations of biomarkers of collagens II, III, IV, V, and VI. In individuals with types III/IV OI these biomarker changes in response to teriparatide were blunted, as we previously reported with collagen I biomarkers during teriparatide therapy. In contrast to OI, in PM women there were no effects of teriparatide on the collagen biomarkers we assessed (II, V, and VI). These findings suggest that in OI teriparatide therapy has abnormal effects on the homeostasis of many ECM collagens likely derived from skeletal as well as extra-skeletal tissues.
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Affiliation(s)
- Lindsey Nicol
- Department of Pediatrics, Division of Endocrinology, Oregon Health & Science University, Portland, OR, United States of America.
| | - Priya Srikanth
- Biostatistics & Design Program, Oregon Health & Science University, Portland, OR, United States of America
| | | | - Shu Sun
- Nordic Bioscience, Herlev, Denmark
| | - Rosamund Smith
- Lilly Research Laboratories, Indianapolis, IN, United States of America
| | | | - Sandesh C S Nagamani
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, United States of America; Texas Children's Hospital, Houston, TX, United States of America
| | - Jay Shapiro
- Uniformed Services University of the Health Sciences, Bethesda, MD, United States of America; Dept. Endocrinology and Diabetes, Walter Reed National Military Medical Center, Bethesda, MD, United States of America
| | - Brendan Lee
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, United States of America; Texas Children's Hospital, Houston, TX, United States of America
| | - Benjamin Z Leder
- Endocrine Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States of America
| | - Eric Orwoll
- Department of Medicine, Bone and Mineral Unit, Oregon Health & Science University, Portland, OR, United States of America
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15
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Odiatis C, Savva I, Pieri M, Ioannou P, Petrou P, Papagregoriou G, Antoniadou K, Makrides N, Stefanou C, Ljubanović DG, Nikolaou G, Borza DB, Stylianou K, Gross O, Deltas C. A glycine substitution in the collagenous domain of Col4a3 in mice recapitulates late onset Alport syndrome. Matrix Biol Plus 2020; 9:100053. [PMID: 33718859 PMCID: PMC7930875 DOI: 10.1016/j.mbplus.2020.100053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 11/18/2020] [Accepted: 11/20/2020] [Indexed: 12/13/2022] Open
Abstract
Alport syndrome (AS) is a severe inherited glomerulopathy caused by mutations in the genes encoding the α-chains of type-IV collagen, the most abundant component of the extracellular glomerular basement membrane (GBM). Currently most AS mouse models are knockout models for one of the collagen-IV genes. In contrast, about half of AS patients have missense mutations, with single aminoacid substitutions of glycine being the most common. The only mouse model for AS with a homozygous knockin missense mutation, Col4a3-p.Gly1332Glu, was partly described before by our group. Here, a detailed in-depth description of the same mouse is presented, along with another compound heterozygous mouse that carries the glycine substitution in trans with a knockout allele. Both mice recapitulate essential features of AS, including shorten lifespan by 30–35%, increased proteinuria, increased serum urea and creatinine, pathognomonic alternate GBM thinning and thickening, and podocyte foot process effacement. Notably, glomeruli and tubuli respond differently to mutant collagen-IV protomers, with reduced expression in tubules but apparently normal in glomeruli. However, equally important is the fact that in the glomeruli the mutant α3-chain as well as the normal α4/α5 chains seem to undergo a cleavage at, or near the point of the mutation, possibly by the metalloproteinase MMP-9, producing a 35 kDa C-terminal fragment. These mouse models represent a good tool for better understanding the spectrum of molecular mechanisms governing collagen-IV nephropathies and could be used for pre-clinical studies aimed at better treatments for AS. Two mouse models were generated that recapitulate essential features of AS patients. Glomeruli and tubuli respond differently to mutant collagen IV protomers. The mutant colIV protomers in glomeruli probably undergo a cleavage process by MMP9. The two AS mouse models represent a good tool for studying collagen-IV nephropathies. These models could be used for pre-clinical studies aimed at better treatments.
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Key Words
- ARAS, autosomal recessive alport syndrome
- AS, alport syndrome
- Alport syndrome
- BSA, bovine serum albumin
- Collagen-IV
- EM, electron microscopy
- ESRD, end stage renal disease
- GBM, glomerular basement membrane
- Glomerular basement membrane
- Glycine missense mutation
- Kidney disease
- Mouse model
- PAS, periodic acid schiff
- TBM, tubular basement membrane
- TGF-b1, transforming growth factor beta1
- UPR, unfolded protein response
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Affiliation(s)
- Christoforos Odiatis
- Center of Excellence in Biobanking and Biomedical Research, Molecular Medicine Research Center, University of Cyprus Medical School, Cyprus
| | - Isavella Savva
- Center of Excellence in Biobanking and Biomedical Research, Molecular Medicine Research Center, University of Cyprus Medical School, Cyprus
| | - Myrtani Pieri
- Department of Life and Health Sciences, School of Sciences and Engineering, University of Nicosia, Cyprus
| | - Pavlos Ioannou
- Center of Excellence in Biobanking and Biomedical Research, Molecular Medicine Research Center, University of Cyprus Medical School, Cyprus
| | - Petros Petrou
- Department of Biochemistry, The Cyprus Institute of Neurology and Genetics, Cyprus
| | - Gregory Papagregoriou
- Center of Excellence in Biobanking and Biomedical Research, Molecular Medicine Research Center, University of Cyprus Medical School, Cyprus
| | - Kyriaki Antoniadou
- Center of Excellence in Biobanking and Biomedical Research, Molecular Medicine Research Center, University of Cyprus Medical School, Cyprus
| | - Neoklis Makrides
- Department of Developmental Functional Genetics, The Cyprus Institute of Neurology and Genetics, Cyprus
| | - Charalambos Stefanou
- Center of Excellence in Biobanking and Biomedical Research, Molecular Medicine Research Center, University of Cyprus Medical School, Cyprus
| | | | - Georgios Nikolaou
- Veterinary diagnostic laboratory, Vet ex Machina LTD, Nicosia, Cyprus
| | - Dorin-Bogdan Borza
- Dept. of Microbiology, Immunology and Physiology, Meharry Medical College, Nashville, TN, United States of America
| | - Kostas Stylianou
- Department of Nephrology, University of Crete Medical School, Greece
| | - Oliver Gross
- Clinic for Nephrology and Rheumatology, University Medical Center Göttingen, Göttingen, Germany
| | - Constantinos Deltas
- Center of Excellence in Biobanking and Biomedical Research, Molecular Medicine Research Center, University of Cyprus Medical School, Cyprus
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16
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Characterization of Sensorineural Hearing Loss in Children with Alport Syndrome. Life (Basel) 2020; 10:life10120360. [PMID: 33352923 PMCID: PMC7766141 DOI: 10.3390/life10120360] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 12/14/2020] [Accepted: 12/15/2020] [Indexed: 12/11/2022] Open
Abstract
Most adults with Alport syndrome (AS) suffer from progressive sensorineural hearing loss. However, little is known about the early characteristics of hearing loss in children with AS. As a part of the EARLY PRO-TECT Alport trial, this study was the first clinical trial ever to investigate hearing loss in children with AS over a timespan of up to six years Nine of 51 children (18%) had hearing impairment. Audiograms were divided into three age groups: in the 5–9-year-olds, the 4-pure tone average (4PTA) was 8.9 decibel (dB) (n = 15) in those with normal hearing and 43.8 dB (n = 2, 12%) in those with hearing impairment. Among the 10–13-year-olds, 4PTA was 4.8 dB (healthy, n = 12) and 41.4 dB (hearing impaired, n = 6.33%). For the 14–20-year-olds, the 4PTA was 7.0 dB (healthy; n = 9) and 48.2 dB (hearing impaired, n = 3.25%). On average, hearing thresholds of the hearing impaired group increased, especially at frequencies between 1–3 kHz. In conclusion, 18% of children developed hearing loss, with a maximum hearing loss in the audiograms at 1–3 kHz. The percentage of children with hearing impairment increased from 10% at baseline to 18% at end of trial as did the severity of hearing loss.
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17
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Aumailley M. Laminins and interaction partners in the architecture of the basement membrane at the dermal-epidermal junction. Exp Dermatol 2020; 30:17-24. [PMID: 33205478 DOI: 10.1111/exd.14239] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 10/27/2020] [Accepted: 11/05/2020] [Indexed: 02/06/2023]
Abstract
The basement membrane at the dermal-epidermal junction keeps the epidermis attached to the dermis. This anatomical barrier is made up of four categories of extracellular matrix proteins: collagen IV, laminin, nidogen and perlecan. These proteins are precisely arranged in a well-defined architecture through specific interactions between the structural domains of the individual components. Some of the molecular constituents are provided by both fibroblasts and keratinocytes, while others are synthesized exclusively by fibroblasts or keratinocytes. It remains to be determined how the components from the fibroblasts are targeted to the dermal-epidermal junction and correctly organized and integrated with the proteins from the adjacent keratinocytes to form the basement membrane.
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Affiliation(s)
- Monique Aumailley
- Medical Faculty, Center for Biochemistry, University of Cologne, Cologne, Germany
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18
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Kim JJ, Fornoni A. Bedside to bench Alport syndrome research: are human urine-derived podocytes the answer? †. J Pathol 2020; 253:11-13. [PMID: 33009821 DOI: 10.1002/path.5564] [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: 09/10/2020] [Revised: 09/21/2020] [Accepted: 09/29/2020] [Indexed: 11/08/2022]
Abstract
In a recent issue of The Journal of Pathology, Iampietro et al isolated and characterized several clones of urine-derived podocytes from three patients with Alport syndrome (AS) and proteinuria and one age-matched non-proteinuric control. They reported differential expression of genes involved in cell motility, adhesion, survival, and angiogenesis. The authors found AS podocytes to be less motile and to have significantly higher permeability to albumin compared to control podocytes, highlighting that AS podocytes may retain their phenotype even when losing contact with the glomerular basement membrane. The establishment of urine-derived podocyte cell lines from patients with different genetic forms of AS may represent a valuable and minimally invasive tool to investigate the cellular mechanisms contributing to kidney disease progression in AS and may allow for the establishment of patient-specific drug screening opportunities. © 2020 The Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Jin-Ju Kim
- Katz Family Division of Nephrology and Hypertension/Peggy and Harold Katz Drug Discovery Center, Department of Medicine, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Alessia Fornoni
- Katz Family Division of Nephrology and Hypertension/Peggy and Harold Katz Drug Discovery Center, Department of Medicine, University of Miami Miller School of Medicine, Miami, FL, USA
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19
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He C, Song W, Weston TA, Tran C, Kurtz I, Zuckerman JE, Guagliardo P, Miner JH, Ivanov SV, Bougoure J, Hudson BG, Colon S, Voziyan PA, Bhave G, Fong LG, Young SG, Jiang H. Peroxidasin-mediated bromine enrichment of basement membranes. Proc Natl Acad Sci U S A 2020; 117:15827-15836. [PMID: 32571911 PMCID: PMC7354931 DOI: 10.1073/pnas.2007749117] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Bromine and peroxidasin (an extracellular peroxidase) are essential for generating sulfilimine cross-links between a methionine and a hydroxylysine within collagen IV, a basement membrane protein. The sulfilimine cross-links increase the structural integrity of basement membranes. The formation of sulfilimine cross-links depends on the ability of peroxidasin to use bromide and hydrogen peroxide substrates to produce hypobromous acid (HOBr). Once a sulfilimine cross-link is created, bromide is released into the extracellular space and becomes available for reutilization. Whether the HOBr generated by peroxidasin is used very selectively for creating sulfilimine cross-links or whether it also causes oxidative damage to bystander molecules (e.g., generating bromotyrosine residues in basement membrane proteins) is unclear. To examine this issue, we used nanoscale secondary ion mass spectrometry (NanoSIMS) imaging to define the distribution of bromine in mammalian tissues. We observed striking enrichment of bromine (79Br, 81Br) in basement membranes of normal human and mouse kidneys. In peroxidasin knockout mice, bromine enrichment of basement membranes of kidneys was reduced by ∼85%. Proteomic studies revealed bromination of tyrosine-1485 in the NC1 domain of α2 collagen IV from kidneys of wild-type mice; the same tyrosine was brominated in collagen IV from human kidney. Bromination of tyrosine-1485 was reduced by >90% in kidneys of peroxidasin knockout mice. Thus, in addition to promoting sulfilimine cross-links in collagen IV, peroxidasin can also brominate a bystander tyrosine. Also, the fact that bromine enrichment is largely confined to basement membranes implies that peroxidasin activity is largely restricted to basement membranes in mammalian tissues.
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Affiliation(s)
- Cuiwen He
- Department of Medicine, University of California, Los Angeles, CA 90095
| | - Wenxin Song
- Department of Medicine, University of California, Los Angeles, CA 90095
| | - Thomas A Weston
- Department of Medicine, University of California, Los Angeles, CA 90095
| | - Caitlyn Tran
- Department of Medicine, University of California, Los Angeles, CA 90095
| | - Ira Kurtz
- Department of Medicine, University of California, Los Angeles, CA 90095
| | - Jonathan E Zuckerman
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, CA 90095
| | - Paul Guagliardo
- Centre for Microscopy, Characterisation and Analysis, University of Western Australia, 6009 Perth, Australia
| | - Jeffrey H Miner
- Division of Nephrology, Washington University School of Medicine, St. Louis, MO 63110
| | - Sergey V Ivanov
- Vanderbilt Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN 37212
- Division of Nephrology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Jeremy Bougoure
- Centre for Microscopy, Characterisation and Analysis, University of Western Australia, 6009 Perth, Australia
| | - Billy G Hudson
- Vanderbilt Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN 37212
- Division of Nephrology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232
- Vanderbilt Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, TN 37232
- Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, TN 37232
| | - Selene Colon
- Vanderbilt Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN 37212
- Division of Nephrology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232
- Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, TN 37232
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN 37212
| | - Paul A Voziyan
- Vanderbilt Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN 37212
- Division of Nephrology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Gautam Bhave
- Vanderbilt Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN 37212
- Division of Nephrology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN 37212
- Center for Kidney Disease, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Loren G Fong
- Department of Medicine, University of California, Los Angeles, CA 90095
| | - Stephen G Young
- Department of Medicine, University of California, Los Angeles, CA 90095;
- Department of Human Genetics, University of California, Los Angeles, CA 90095
| | - Haibo Jiang
- School of Molecular Sciences, University of Western Australia, 6009 Perth, Australia;
- Department of Chemistry, The University of Hong Kong, Hong Kong, China
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20
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Dengjel J, Bruckner-Tuderman L, Nyström A. Skin proteomics - analysis of the extracellular matrix in health and disease. Expert Rev Proteomics 2020; 17:377-391. [PMID: 32552150 DOI: 10.1080/14789450.2020.1773261] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
INTRODUCTION The skin protects the human body from external insults and regulates water and temperature homeostasis. A highly developed extracellular matrix (ECM) supports the skin and instructs its cell functions. Reduced functionality of the ECM is often associated with skin diseases that cause physical impairment and also have implications on social interactions and quality of life of affected individuals. AREAS COVERED With a focus on the skin ECM we discuss how mass spectrometry (MS)-based proteomic approaches first contributed to establishing skin protein inventories and then facilitated elucidation of molecular functions and disease mechanisms. EXPERT OPINION MS-based proteomic approaches have significantly contributed to our understanding of skin pathophysiology, but also revealed the challenges in assessing the skin ECM. The numerous posttranslational modifications of ECM proteins, like glycosylation, crosslinking, oxidation, and proteolytic maturation in disease settings can be difficult to tackle and remain understudied. Increased ease of handling of LC-MS/MS systems and automated/streamlined data analysis pipelines together with the accompanying increased usage of LC-MS/MS approaches will ensure that in the coming years MS-based proteomic approaches will continue to play a vital part in skin disease research. They will facilitate the elucidation of molecular disease mechanisms and, ultimately, identification of new druggable targets.
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Affiliation(s)
- Jörn Dengjel
- Department of Biology, University of Fribourg , Fribourg, Switzerland
| | - Leena Bruckner-Tuderman
- Department of Dermatology, Faculty of Medicine, Medical Center - University of Freiburg , Freiburg, University of Freiburg, Freiburg, Germany Germany
| | - Alexander Nyström
- Department of Dermatology, Faculty of Medicine, Medical Center - University of Freiburg , Freiburg, University of Freiburg, Freiburg, Germany Germany
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21
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Funk SD, Bayer RH, McKee KK, Okada K, Nishimune H, Yurchenco PD, Miner JH. A deletion in the N-terminal polymerizing domain of laminin β2 is a new mouse model of chronic nephrotic syndrome. Kidney Int 2020; 98:133-146. [PMID: 32456966 DOI: 10.1016/j.kint.2020.01.033] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 01/14/2020] [Accepted: 01/21/2020] [Indexed: 10/25/2022]
Abstract
The importance of the glomerular basement membrane (GBM) in glomerular filtration is underscored by the manifestations of Alport and Pierson syndromes, caused by defects in type IV collagen α3α4α5 and the laminin β2 chain, respectively. Lamb2 null mice, which model the most severe form of Pierson syndrome, exhibit proteinuria prior to podocyte foot process effacement and are therefore useful for studying GBM permselectivity. We hypothesize that some LAMB2 missense mutations that cause mild forms of Pierson syndrome induce GBM destabilization with delayed effects on podocytes. While generating a CRISPR/Cas9-mediated analogue of a human LAMB2 missense mutation in mice, we identified a 44-amino acid deletion (LAMB2-Del44) within the laminin N-terminal domain, a domain mediating laminin polymerization. Laminin heterotrimers containing LAMB2-Del44 exhibited a 90% reduction in polymerization in vitro that was partially rescued by type IV collagen and nidogen. Del44 mice showed albuminuria at 1.8-6.0 g/g creatinine (ACR) at one to two months, plateauing at an average 200 g/g ACR at 3.7 months, when GBM thickening and hallmarks of nephrotic syndrome were first observed. Despite the massive albuminuria, some Del44 mice survived for up to 15 months. Blood urea nitrogen was modestly elevated at seven-nine months. Eight to nine-month-old Del44 mice exhibited glomerulosclerosis and interstitial fibrosis. Similar to Lamb2-/- mice, proteinuria preceded foot process effacement. Foot processes were widened but not effaced at one-two months despite the high ACRs. At three months some individual foot processes were still observed amid widespread effacement. Thus, our chronic model of nephrotic syndrome may prove useful to study filtration mechanisms, long-term proteinuria with preserved kidney function, and to test therapeutics.
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Affiliation(s)
- Steven D Funk
- Department of Internal Medicine, Division of Nephrology, Washington University, St. Louis, Missouri, USA
| | - Raymond H Bayer
- Department of Internal Medicine, Division of Nephrology, Washington University, St. Louis, Missouri, USA
| | - Karen K McKee
- Department of Pathology and Laboratory Medicine, Robert Wood Johnson Medical School, Rutgers University, Piscataway, New Jersey, USA
| | - Kazushi Okada
- Department of Anatomy and Cell Biology, University of Kansas School of Medicine, Kansas City, Kansas, USA
| | - Hiroshi Nishimune
- Department of Anatomy and Cell Biology, University of Kansas School of Medicine, Kansas City, Kansas, USA
| | - Peter D Yurchenco
- Department of Pathology and Laboratory Medicine, Robert Wood Johnson Medical School, Rutgers University, Piscataway, New Jersey, USA
| | - Jeffrey H Miner
- Department of Internal Medicine, Division of Nephrology, Washington University, St. Louis, Missouri, USA.
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22
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Falcone S, Wisby L, Nicol T, Blease A, Starbuck B, Parker A, Sanderson J, Brown SDM, Scudamore CL, Pusey CD, Tam FWK, Potter PK. Modification of an aggressive model of Alport Syndrome reveals early differences in disease pathogenesis due to genetic background. Sci Rep 2019; 9:20398. [PMID: 31892712 PMCID: PMC6938516 DOI: 10.1038/s41598-019-56837-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Accepted: 12/05/2019] [Indexed: 12/13/2022] Open
Abstract
The link between mutations in collagen genes and the development of Alport Syndrome has been clearly established and a number of animal models, including knock-out mouse lines, have been developed that mirror disease observed in patients. However, it is clear from both patients and animal models that the progression of disease can vary greatly and can be modified genetically. We have identified a point mutation in Col4a4 in mice where disease is modified by strain background, providing further evidence of the genetic modification of disease symptoms. Our results indicate that C57BL/6J is a protective background and postpones end stage renal failure from 7 weeks, as seen on a C3H background, to several months. We have identified early differences in disease progression, including expression of podocyte-specific genes and podocyte morphology. In C57BL/6J mice podocyte effacement is delayed, prolonging normal renal function. The slower disease progression has allowed us to begin dissecting the pathogenesis of murine Alport Syndrome in detail. We find that there is evidence of differential gene expression during disease on the two genetic backgrounds, and that disease diverges by 4 weeks of age. We also show that an inflammatory response with increasing MCP-1 and KIM-1 levels precedes loss of renal function.
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Affiliation(s)
- Sara Falcone
- Mammalian Genetics Unit, Medical Research Council, Harwell science and innovation campus, Oxford, OX11 0RD, UK
| | - Laura Wisby
- Mammalian Genetics Unit, Medical Research Council, Harwell science and innovation campus, Oxford, OX11 0RD, UK
| | - Thomas Nicol
- Mammalian Genetics Unit, Medical Research Council, Harwell science and innovation campus, Oxford, OX11 0RD, UK
| | - Andrew Blease
- Mammalian Genetics Unit, Medical Research Council, Harwell science and innovation campus, Oxford, OX11 0RD, UK
| | - Becky Starbuck
- Mammalian Genetics Unit, Medical Research Council, Harwell science and innovation campus, Oxford, OX11 0RD, UK
| | - Andrew Parker
- Mammalian Genetics Unit, Medical Research Council, Harwell science and innovation campus, Oxford, OX11 0RD, UK
| | - Jeremy Sanderson
- Mammalian Genetics Unit, Medical Research Council, Harwell science and innovation campus, Oxford, OX11 0RD, UK
| | - Steve D M Brown
- Mammalian Genetics Unit, Medical Research Council, Harwell science and innovation campus, Oxford, OX11 0RD, UK
| | - Cheryl L Scudamore
- Mary Lyon Centre, Medical Research Council, Harwell science and innovation campus, Oxford, OX11 0RD, UK
| | - Charles D Pusey
- Renal and Vascular Inflammation Section, Department of Medicine, Imperial College, London, W12 0N, UK
| | - Frederick W K Tam
- Renal and Vascular Inflammation Section, Department of Medicine, Imperial College, London, W12 0N, UK
| | - Paul K Potter
- Renal and Vascular Inflammation Section, Department of Medicine, Imperial College, London, W12 0N, UK.
- Department of Biological and Medical Sciences, Faculty of Health and Life Sciences, Oxford Brookes University, Oxford, OX3 0BP, UK.
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23
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Shang S, Peng F, Wang T, Wu X, Li P, Li Q, Chen XM. Genotype-phenotype correlation and prognostic impact in Chinese patients with Alport Syndrome. Mol Genet Genomic Med 2019; 7:e00741. [PMID: 31144478 PMCID: PMC6625365 DOI: 10.1002/mgg3.741] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Revised: 04/12/2019] [Accepted: 04/15/2019] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Alport Syndrome (AS) is a progressive hereditary glomerular disease. It is often accompanied by sensorineural hearing loss and ocular abnormalities and can sometimes develop into end stage renal disease (ESRD), which is caused by mutations in the genes encoding the collagen type IV family of proteins. METHODS This study analyzed the association between the clinical data of seven AS families and genes and the disease progression of different mutation types, including COL4A3 (OMIM 120070),COL4A4 (OMIM 120131), and COL4A5 (OMIM303630). RESULTS A total of six new pathogenic mutation sites, one complex heterozygous mutation at COL4A3, and a combined mutation of COL4A5 and INF2 (OMIM 610982) were identified in this study. It was revealed that the clinical manifestations of X-linked AS caused by mutations in the COL4A5 gene were more severe in males than in females. In addition, the difference in patient phenotype can be attributed to the location of gene mutations affecting the protein domain or functional domain. Our data suggested that the gene deletion and nonsense mutations had a high risk for progression to ESRD. CONCLUSION Our results revealed the spectrum of type IV collagen genes, which contribute to the enrichment of database resources and has important implications in the diagnosis, prognosis, and guiding treatment of AS.
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Affiliation(s)
- Shunlai Shang
- Department of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Chinese PLA General Hospital, Medical School of Chinese PLA, Chinese PLA Institute of Nephrology, Beijing, China
| | - Fei Peng
- Department of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Chinese PLA General Hospital, Medical School of Chinese PLA, Chinese PLA Institute of Nephrology, Beijing, China.,School of Medicine, Nankai University, Tianjin, China
| | - Tao Wang
- Department of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Chinese PLA General Hospital, Medical School of Chinese PLA, Chinese PLA Institute of Nephrology, Beijing, China
| | - Xiaoyuan Wu
- Department of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Chinese PLA General Hospital, Medical School of Chinese PLA, Chinese PLA Institute of Nephrology, Beijing, China
| | - Ping Li
- Department of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Chinese PLA General Hospital, Medical School of Chinese PLA, Chinese PLA Institute of Nephrology, Beijing, China
| | - Qinggang Li
- Department of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Chinese PLA General Hospital, Medical School of Chinese PLA, Chinese PLA Institute of Nephrology, Beijing, China
| | - Xiang M Chen
- Department of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Chinese PLA General Hospital, Medical School of Chinese PLA, Chinese PLA Institute of Nephrology, Beijing, China
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24
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Nicol L, Morar P, Wang Y, Henriksen K, Sun S, Karsdal M, Smith R, Nagamani SCS, Shapiro J, Lee B, Orwoll E. Alterations in non-type I collagen biomarkers in osteogenesis imperfecta. Bone 2019; 120:70-74. [PMID: 30290234 DOI: 10.1016/j.bone.2018.09.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 09/10/2018] [Accepted: 09/27/2018] [Indexed: 02/06/2023]
Abstract
Osteogenesis imperfecta [1] is a rare disorder of connective tissue caused by abnormalities in the synthesis or processing of type I collagen. Type I collagen is the most abundant type of collagen and is expressed in almost all connective tissues. Given that type I collagen interacts with other collagens based in the extracellular matrix (ECM), we hypothesized changes in type I collagen in OI would result in perturbations in the homeostasis of other collagen types. We measured serum biomarkers of several non-type I collagens in patients with mild (type I) and moderate-to-severe (type III/IV) OI. Compared to controls, those with moderate-to severe OI had a higher mean level of the synthesis markers of collagen III (ProC3) (P = 0.02), and levels of collagen V (ProC5) (P = 0.07) were slightly, but not significantly, higher. Degradation markers of collage type IV (C4M2) (P = 0.04) and type VI (C6M) (P = 0.003) were also higher. In each case, a test for trend suggested levels were higher in moderate-to-severe OI, intermediate in mild OI, and lowest in controls (P = 0.06-0.002). These changes supports the hypothesis that mutations in type I collagen induce a widespread alteration in the ECM, and that the diverse clinical manifestations of OI reflect an extensive disruption in ECM biology.
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Affiliation(s)
- Lindsey Nicol
- Department of Pediatrics, Division of Endocrinology, Oregon Health & Science University, Portland, OR, United States of America.
| | - Patrick Morar
- George Fox University, Newberg, OR, United States of America
| | - Ying Wang
- Department of Medicine, Division of Biostatistics, Oregon Health & Science University, Portland, OR, United States of America
| | | | - Shu Sun
- Nordic Bioscience, Herlev, Denmark
| | | | - Rosamund Smith
- Lilly Research Laboratories, Indianapolis, IN, United States of America
| | - Sandesh C S Nagamani
- Department of Medicine, Division of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, United States of America
| | - Jay Shapiro
- Uniformed Services University of the Health Sciences, Dept. Endocrinology and Diabetes, Walter Reed National Military Medical Center, Bethesda, MD, United States of America
| | - Brendan Lee
- Department of Medicine, Division of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, United States of America
| | - Eric Orwoll
- Department of Medicine, Division of Endocrinology, Oregon Health & Science University, Portland, OR, United States of America
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Nissen G, Hollaender H, Tang FSM, Wegmann M, Lunding L, Vock C, Bachmann A, Lemmel S, Bartels R, Oliver BG, Burgess JK, Becker T, Kopp MV, Weckmann M. Tumstatin fragment selectively inhibits neutrophil infiltration in experimental asthma exacerbation. Clin Exp Allergy 2018; 48:1483-1493. [PMID: 30028047 DOI: 10.1111/cea.13236] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Accepted: 06/11/2018] [Indexed: 11/27/2022]
Abstract
BACKGROUND Asthma is a chronic inflammatory disease with structural changes present. Burgess and colleagues recently found tumstatin markedly reduced in adult asthmatic lung tissue compared with nonasthmatics. ECM fragments such as tumstatin are named matrikines and act independently of the parent molecule. The role of Col IV matrikines in neutrophil inflammation (eg. exacerbation in asthma) has not been investigated to date. Severe adult asthma phenotypes are dominated by neutrophilic inflammation and show a high frequency of severe exacerbations. OBJECTIVE This study sought to investigate the role of a novel active region within tumstatin (CP17) and its implication in neutrophil inflammatory responses related to asthma exacerbation. METHODS For reactive oxygen production, isolated neutrophils were preincubated with peptides or vehicle for 1 hour and stimulated (PMA). Luminescence signal was recorded (integration over 10 seconds) for 1.5 hours. Neutrophil migration was performed according to the SiMA protocol. Mice were sensitized to OVA/Alumn by intraperitoneal (i.p.) injections. Mice were then treated with CP17, vehicle (PBS) or scrambled peptide (SP17) after OVA exposure (days 27 and 28, polyI:C stimulation). All animals were killed on day 29 with lung function measurement, histology and lavage. RESULTS CP17 decreased total ROS production rate to 52.44% (0.5 μmol/L, P < 0.05 vs SP17), reduced the in vitro directionality (vs SP17, P = 1 × 10-6 ) and migration speed (5 μmol/L, P = 1 × 10-3 ). In vivo application of CP17 decreased neutrophil inflammation ~1.8-fold (P < 0.001 vs SP17) and reduced numbers of mucus-producing cells (-29%, P < 0.05). CONCLUSION CP17 reduced the ROS production rate, migrational speed and selectively inhibited neutrophil accumulation in the lung interstitium and lumen. CLINICAL RELEVANCE CP17 may serve as a potential precursor for drug development to combat overwhelming neutrophil inflammation.
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Affiliation(s)
- Gyde Nissen
- Division of Pediatric Pneumology and Allergology, University of Lübeck, Lübeck, Germany.,Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Luebeck, Germany
| | - Henrike Hollaender
- Division of Pediatric Pneumology and Allergology, University of Lübeck, Lübeck, Germany.,Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Luebeck, Germany
| | - Francesca S M Tang
- Respiratory Cell and Molecular Biology, Woolcock Institute of Medical Research, The University of Sydney, Sydney, New South Wales, Australia
| | - Michael Wegmann
- Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Luebeck, Germany.,Division of Asthma Exacerbation & Regulation, Program Area Asthma & Allergy, Leibniz-Center for Medicine and Biosciences, Borstel, Germany.,Program Area Asthma & Allergy, Research Center Borstel, Leibniz Lung Center, Borstel, Germany
| | - Lars Lunding
- Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Luebeck, Germany.,Division of Asthma Exacerbation & Regulation, Program Area Asthma & Allergy, Leibniz-Center for Medicine and Biosciences, Borstel, Germany.,Program Area Asthma & Allergy, Research Center Borstel, Leibniz Lung Center, Borstel, Germany
| | - Christina Vock
- Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Luebeck, Germany.,Program Area Asthma & Allergy, Research Center Borstel, Leibniz Lung Center, Borstel, Germany.,Division of Experimental Pneumology, Program Area Asthma & Allergy, Leibniz-Center for Medicine and Biosciences, Borstel, Germany
| | - Anna Bachmann
- Division of Pediatric Pneumology and Allergology, University of Lübeck, Lübeck, Germany.,Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Luebeck, Germany
| | - Solveig Lemmel
- Division of Pediatric Pneumology and Allergology, University of Lübeck, Lübeck, Germany.,Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Luebeck, Germany
| | - Rainer Bartels
- Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Luebeck, Germany.,Program Area Asthma & Allergy, Research Center Borstel, Leibniz Lung Center, Borstel, Germany.,Division of Structural Biochemistry, Program Area Asthma & Allergy, Leibniz-Center for Medicine and Biosciences, Borstel, Germany
| | - Brian G Oliver
- Respiratory Cell and Molecular Biology, Woolcock Institute of Medical Research, The University of Sydney, Sydney, New South Wales, Australia.,School of Life Sciences, University of Technology Sydney, Sydney, New South Wales, Australia
| | - Janette K Burgess
- Respiratory Cell and Molecular Biology, Woolcock Institute of Medical Research, The University of Sydney, Sydney, New South Wales, Australia.,Department of Pathology & Medical Biology, GRIAC (Groningen Research Institute for Asthma and COPD), University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Tim Becker
- Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Luebeck, Germany.,Division of Cell Technology, Fraunhofer Institute for Marine Biotechnology (Fraunhofer EMB), Lübeck, Germany
| | - Matthias V Kopp
- Division of Pediatric Pneumology and Allergology, University of Lübeck, Lübeck, Germany.,Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Luebeck, Germany
| | - Markus Weckmann
- Division of Pediatric Pneumology and Allergology, University of Lübeck, Lübeck, Germany.,Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Luebeck, Germany
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Abstract
The glomerular basement membrane (GBM) is a specialized structure with a significant role in maintaining the glomerular filtration barrier. This GBM is formed from the fusion of two basement membranes during development and its function in the filtration barrier is achieved by key extracellular matrix components including type IV collagen, laminins, nidogens, and heparan sulfate proteoglycans. The characteristics of specific matrix isoforms such as laminin-521 (α5β2γ1) and the α3α4α5 chain of type IV collagen are essential for the formation of a mature GBM and the restricted tissue distribution of these isoforms makes the GBM a unique structure. Detailed investigation of the GBM has been driven by the identification of inherited abnormalities in matrix proteins and the need to understand pathogenic mechanisms causing severe glomerular disease. A well-described hereditary GBM disease is Alport syndrome, associated with a progressive glomerular disease, hearing loss, and lens defects due to mutations in the genes COL4A3, COL4A4, or COL4A5. Other proteins associated with inherited diseases of the GBM include laminin β2 in Pierson syndrome and LMX1B in nail patella syndrome. The knowledge of these genetic mutations associated with GBM defects has enhanced our understanding of cell-matrix signaling pathways affected in glomerular disease. This review will address current knowledge of GBM-associated abnormalities and related signaling pathways, as well as discussing the advances toward disease-targeted therapies for patients with glomerular disease.
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Affiliation(s)
- Christine Chew
- Faculty of Biology Medicine and Health, Wellcome Trust Centre for Cell-Matrix Research, Division of Cell Matrix Biology, School of Biological Sciences, University of Manchester, Manchester, United Kingdom
| | - Rachel Lennon
- Faculty of Biology Medicine and Health, Wellcome Trust Centre for Cell-Matrix Research, Division of Cell Matrix Biology, School of Biological Sciences, University of Manchester, Manchester, United Kingdom.,Department of Paediatric Nephrology, Royal Manchester Children's Hospital, Central Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester, United Kingdom
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27
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Funk SD, Bayer RH, Malone AF, McKee KK, Yurchenco PD, Miner JH. Pathogenicity of a Human Laminin β2 Mutation Revealed in Models of Alport Syndrome. J Am Soc Nephrol 2017; 29:949-960. [PMID: 29263159 DOI: 10.1681/asn.2017090997] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Accepted: 11/19/2017] [Indexed: 01/15/2023] Open
Abstract
Pierson syndrome is a congenital nephrotic syndrome with eye and neurologic defects caused by mutations in laminin β2 (LAMB2), a major component of the glomerular basement membrane (GBM). Pathogenic missense mutations in human LAMB2 cluster in or near the laminin amino-terminal (LN) domain, a domain required for extracellular polymerization of laminin trimers and basement membrane scaffolding. Here, we investigated an LN domain missense mutation, LAMB2-S80R, which was discovered in a patient with Pierson syndrome and unusually late onset of proteinuria. Biochemical data indicated that this mutation impairs laminin polymerization, which we hypothesized to be the cause of the patient's nephrotic syndrome. Testing this hypothesis in genetically altered mice showed that the corresponding amino acid change (LAMB2-S83R) alone is not pathogenic. However, expression of LAMB2-S83R significantly increased the rate of progression to kidney failure in a Col4a3-/- mouse model of autosomal recessive Alport syndrome and increased proteinuria in Col4a5+/- females that exhibit a mild form of X-linked Alport syndrome due to mosaic deposition of collagen α3α4α5(IV) in the GBM. Collectively, these data show the pathogenicity of LAMB2-S80R and provide the first evidence of genetic modification of Alport phenotypes by variation in another GBM component. This finding could help explain the wide range of Alport syndrome onset and severity observed in patients with Alport syndrome, even for family members who share the same COL4 mutation. Our results also show the complexities of using model organisms to investigate genetic variants suspected of being pathogenic in humans.
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Affiliation(s)
- Steven D Funk
- Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri and
| | - Raymond H Bayer
- Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri and
| | - Andrew F Malone
- Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri and
| | - Karen K McKee
- Department of Pathology and Laboratory Medicine, Robert Wood Johnson Medical School, Rutgers University, Piscataway, New Jersey
| | - Peter D Yurchenco
- Department of Pathology and Laboratory Medicine, Robert Wood Johnson Medical School, Rutgers University, Piscataway, New Jersey
| | - Jeffrey H Miner
- Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri and
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28
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Cummings CF, Pedchenko V, Brown KL, Colon S, Rafi M, Jones-Paris C, Pokydeshava E, Liu M, Pastor-Pareja JC, Stothers C, Ero-Tolliver IA, McCall AS, Vanacore R, Bhave G, Santoro S, Blackwell TS, Zent R, Pozzi A, Hudson BG. Extracellular chloride signals collagen IV network assembly during basement membrane formation. J Cell Biol 2017; 213:479-94. [PMID: 27216258 PMCID: PMC4878091 DOI: 10.1083/jcb.201510065] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Accepted: 04/29/2016] [Indexed: 01/07/2023] Open
Abstract
Basement membranes are defining features of the cellular microenvironment; however, little is known regarding their assembly outside cells. We report that extracellular Cl(-) ions signal the assembly of collagen IV networks outside cells by triggering a conformational switch within collagen IV noncollagenous 1 (NC1) domains. Depletion of Cl(-) in cell culture perturbed collagen IV networks, disrupted matrix architecture, and repositioned basement membrane proteins. Phylogenetic evidence indicates this conformational switch is a fundamental mechanism of collagen IV network assembly throughout Metazoa. Using recombinant triple helical protomers, we prove that NC1 domains direct both protomer and network assembly and show in Drosophila that NC1 architecture is critical for incorporation into basement membranes. These discoveries provide an atomic-level understanding of the dynamic interactions between extracellular Cl(-) and collagen IV assembly outside cells, a critical step in the assembly and organization of basement membranes that enable tissue architecture and function. Moreover, this provides a mechanistic framework for understanding the molecular pathobiology of NC1 domains.
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Affiliation(s)
- Christopher F Cummings
- Department of Biochemistry, Vanderbilt University Medical Center, Nashville, TN 37232 Department of Medicine, Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Nashville, TN 37232 Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Vadim Pedchenko
- Department of Medicine, Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Nashville, TN 37232 Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Kyle L Brown
- Department of Medicine, Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Nashville, TN 37232 Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN 37232 Center for Structural Biology, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Selene Colon
- Department of Medicine, Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Nashville, TN 37232 Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN 37232 Aspirnaut Program, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Mohamed Rafi
- Department of Medicine, Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Nashville, TN 37232 Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Celestial Jones-Paris
- Aspirnaut Program, Vanderbilt University Medical Center, Nashville, TN 37232 Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Elena Pokydeshava
- Department of Medicine, Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Nashville, TN 37232 Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Min Liu
- School of Life Sciences, Tsinghua University, Beijing 100084, China
| | | | - Cody Stothers
- Department of Biology, Vanderbilt University Medical Center, Nashville, TN 37232 Aspirnaut Program, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Isi A Ero-Tolliver
- Department of Medicine, Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Nashville, TN 37232 Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN 37232 Aspirnaut Program, Vanderbilt University Medical Center, Nashville, TN 37232
| | - A Scott McCall
- Department of Pharmacology, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Roberto Vanacore
- Department of Medicine, Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Nashville, TN 37232 Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Gautam Bhave
- Department of Medicine, Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Nashville, TN 37232 Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Samuel Santoro
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Timothy S Blackwell
- Department of Medicine, Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Roy Zent
- Department of Medicine, Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Nashville, TN 37232 Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN 37232 Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, TN 37232 Department of Cancer Biology, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Ambra Pozzi
- Department of Medicine, Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Nashville, TN 37232 Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN 37232 Department of Cancer Biology, Vanderbilt University Medical Center, Nashville, TN 37232 Department of Molecular Physiology and Biophysics, Vanderbilt University Medical Center, Nashville, TN 37232
| | - Billy G Hudson
- Department of Biochemistry, Vanderbilt University Medical Center, Nashville, TN 37232 Department of Medicine, Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Nashville, TN 37232 Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN 37232 Aspirnaut Program, Vanderbilt University Medical Center, Nashville, TN 37232 Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232 Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, TN 37232 Vanderbilt Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, TN 37232 Vanderbilt Institute of Chemical Biology, Vanderbilt University Medical Center, Nashville, TN 37232
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29
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Jones-Paris CR, Paria S, Berg T, Saus J, Bhave G, Paria BC, Hudson BG. Embryo implantation triggers dynamic spatiotemporal expression of the basement membrane toolkit during uterine reprogramming. Matrix Biol 2017; 57-58:347-365. [PMID: 27619726 PMCID: PMC5328942 DOI: 10.1016/j.matbio.2016.09.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2016] [Revised: 09/02/2016] [Accepted: 09/04/2016] [Indexed: 01/08/2023]
Abstract
Basement membranes (BMs) are specialized extracellular scaffolds that influence behaviors of cells in epithelial, endothelial, muscle, nervous, and fat tissues. Throughout development and in response to injury or disease, BMs are fine-tuned with specific protein compositions, ultrastructure, and localization. These features are modulated through implements of the BM toolkit that is comprised of collagen IV, laminin, perlecan, and nidogen. Two additional proteins, peroxidasin and Goodpasture antigen-binding protein (GPBP), have recently emerged as potential members of the toolkit. In the present study, we sought to determine whether peroxidasin and GPBP undergo dynamic regulation in the assembly of uterine tissue BMs in early pregnancy as a tractable model for dynamic adult BMs. We explored these proteins in the context of collagen IV and laminin that are known to extensively change for decidualization. Electron microscopic analyses revealed: 1) a smooth continuous layer of BM in between the epithelial and stromal layers of the preimplantation endometrium; and 2) interrupted, uneven, and progressively thickened BM within the pericellular space of the postimplantation decidua. Quantification of mRNA levels by qPCR showed changes in expression levels that were complemented by immunofluorescence localization of peroxidasin, GPBP, collagen IV, and laminin. Novel BM-associated and subcellular spatiotemporal localization patterns of the four components suggest both collective pericellular functions and distinct functions in the uterus during reprogramming for embryo implantation.
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Affiliation(s)
- Celestial R Jones-Paris
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN, United States; Aspirnaut, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Sayan Paria
- Aspirnaut, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Taloa Berg
- Aspirnaut, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Juan Saus
- Valencia University Medical School, Valencia, Spain; Fibrostatin, SL, Valencia, Spain
| | - Gautam Bhave
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, United States; Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Bibhash C Paria
- Division of Neonatology, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, United States.
| | - Billy G Hudson
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN, United States; Valencia University Medical School, Valencia, Spain; Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, United States; Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, TN, United States; Department of Biochemistry, Vanderbilt University, Nashville, TN, United States; Department of Cell and Developmental Biology, 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.
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30
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Syndrome d’Alport : néphropathie héréditaire associée à des mutations dans les gènes codant les chaînes de collagène de type IV. Nephrol Ther 2016; 12:544-551. [DOI: 10.1016/j.nephro.2016.09.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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31
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Jones-Paris CR, Paria S, Berg T, Saus J, Bhave G, Paria BC, Hudson BG. Basement membrane ultrastructure and component localization data from uterine tissues during early mouse pregnancy. Data Brief 2016; 9:931-939. [PMID: 27896299 PMCID: PMC5118616 DOI: 10.1016/j.dib.2016.10.033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Revised: 10/07/2016] [Accepted: 10/31/2016] [Indexed: 10/26/2022] Open
Abstract
Basement membranes (BMs) are specialized extracellular scaffolds that provide architecture and modulate cell behaviors in tissues, such as fat, muscle, endothelium, endometrium, and decidua. Properties of BMs are maintained in homeostasis for most adult tissues. However, BM ultrastructure, composition, and localization are rapidly altered in select uterine tissues that are reprogrammed during pregnancy to enable early maternal-embryo interactions. Here, our data exhibit both static and dynamic BMs that were tracked in mouse uterine tissues during pre-, peri-, and postimplantation periods of pregnancy. The data exhibit spatial-temporal patterns of BM property regulation that coincide with the progression of adapted physiology. Further interpretation and discussion of these data in this article are described in the associated research article titled, "Embryo implantation triggers dynamic spatiotemporal expression of the basement membrane toolkit during uterine reprogramming" (C.R. Jones-Paris, S. Paria, T. Berg, J. Saus, G. Bhave, B.C. Paria, B.G. Hudson, 2016) [1].
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Affiliation(s)
- Celestial R Jones-Paris
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee, United States; Aspirnaut, Vanderbilt University Medical Center, Nashville, Tennessee, United States
| | - Sayan Paria
- Aspirnaut, Vanderbilt University Medical Center, Nashville, Tennessee, United States
| | - Taloa Berg
- Aspirnaut, Vanderbilt University Medical Center, Nashville, Tennessee, United States
| | - Juan Saus
- Valencia University Medical School, Valencia, Spain; FibroStatin, SL, Valencia, Spain
| | - Gautam Bhave
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States; Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, Tennessee, United States
| | - Bibhash C Paria
- Division of Neonatology, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee, United States
| | - Billy G Hudson
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee, United States; Valencia University Medical School, Valencia, Spain; Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States; Center for Matrix Biology, Vanderbilt University Medical Center, Nashville, Tennessee, United States; Department of Biochemistry, Vanderbilt University, Nashville, Tennessee, United States; Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, Tennessee, United States; Vanderbilt Ingram Cancer Center, Nashville, Tennessee, United States; Vanderbilt Institute of Chemical Biology, Nashville, Tennessee, United States
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32
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Walia A, Yang JF, Huang YH, Rosenblatt MI, Chang JH, Azar DT. Endostatin's emerging roles in angiogenesis, lymphangiogenesis, disease, and clinical applications. BIOCHIMICA ET BIOPHYSICA ACTA 2015; 1850:2422-38. [PMID: 26367079 PMCID: PMC4624607 DOI: 10.1016/j.bbagen.2015.09.007] [Citation(s) in RCA: 128] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Revised: 09/02/2015] [Accepted: 09/10/2015] [Indexed: 02/08/2023]
Abstract
BACKGROUND Angiogenesis is the process of neovascularization from pre-existing vasculature and is involved in various physiological and pathological processes. Inhibitors of angiogenesis, administered either as individual drugs or in combination with other chemotherapy, have been shown to benefit patients with various cancers. Endostatin, a 20-kDa C-terminal fragment of type XVIII collagen, is one of the most potent inhibitors of angiogenesis. SCOPE OF REVIEW We discuss the biology behind endostatin in the context of its endogenous production, the various receptors to which it binds, and the mechanisms by which it acts. We focus on its inhibitory role in angiogenesis, lymphangiogenesis, and cancer metastasis. We also present emerging clinical applications for endostatin and its potential as a therapeutic agent in the form a short peptide. MAJOR CONCLUSIONS The delicate balance between pro- and anti-angiogenic factors can be modulated to result in physiological wound healing or pathological tumor metastasis. Research in the last decade has emphasized an emerging clinical potential for endostatin as a biomarker and as a therapeutic short peptide. Moreover, elevated or depressed endostatin levels in diseased states may help explain the pathophysiological mechanisms of the particular disease. GENERAL SIGNIFICANCE Endostatin was once sought after as the 'be all and end all' for cancer treatment; however, research throughout the last decade has made it apparent that endostatin's effects are complex and involve multiple mechanisms. A better understanding of newly discovered mechanisms and clinical applications still has the potential to lead to future advances in the use of endostatin in the clinic.
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Affiliation(s)
- Amit Walia
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, University of Illinois at Chicago, Chicago, IL, USA
| | - Jessica F Yang
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, University of Illinois at Chicago, Chicago, IL, USA
| | - Yu-Hui Huang
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, University of Illinois at Chicago, Chicago, IL, USA
| | - Mark I Rosenblatt
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, University of Illinois at Chicago, Chicago, IL, USA
| | - Jin-Hong Chang
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, University of Illinois at Chicago, Chicago, IL, USA.
| | - Dimitri T Azar
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, University of Illinois at Chicago, Chicago, IL, USA
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Roeder SS, Stefanska A, Eng DG, Kaverina N, Sunseri MW, McNicholas BA, Rabinovitch P, Engel FB, Daniel C, Amann K, Lichtnekert J, Pippin JW, Shankland SJ. Changes in glomerular parietal epithelial cells in mouse kidneys with advanced age. Am J Physiol Renal Physiol 2015; 309:F164-78. [PMID: 26017974 DOI: 10.1152/ajprenal.00144.2015] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 05/26/2015] [Indexed: 02/08/2023] Open
Abstract
Kidney aging is accompanied by characteristic changes in the glomerulus, but little is known about the effect of aging on glomerular parietal epithelial cells (PECs), nor if the characteristic glomerular changes in humans and rats also occur in very old mice. Accordingly, a descriptive analysis was undertaken in 27-mo-old C57B6 mice, considered advanced age. PEC density was significantly lower in older mice compared with young mice (aged 3 mo), and the decrease was more pronounced in juxtamedullary glomeruli compared with outer cortical glomeruli. In addition to segmental and global glomerulosclerosis in older mice, staining for matrix proteins collagen type IV and heparan sulfate proteoglycan were markedly increased in Bowman's capsules of older mouse glomeruli, consistent with increased extracellular matrix production by PECs. De novo staining for CD44, a marker of activated and profibrotic PECs, was significantly increased in aged glomeruli. CD44 staining was more pronounced in the juxtamedullary region and colocalized with phosphorylated ERK. Additionally, a subset of aged PECs de novo expressed the epithelial-to-mesenchymal transition markers α-smooth muscle and vimentin, with no changes in epithelial-to-mesenchymal transition markers E-cadherin and β-catenin. The mural cell markers neural/glial antigen 2, PDGF receptor-β, and CD146 as well as Notch 3 were also substantially increased in aged PECs. These data show that mice can be used to better understand the aging kidney and that PECs undergo substantial changes, especially in juxtamedullary glomeruli, that may participate in the overall decline in glomerular structure and function with advancing age.
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Affiliation(s)
- Sebastian S Roeder
- Division of Nephrology, University of Washington, Seattle, Washington; Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Ania Stefanska
- Division of Nephrology, University of Washington, Seattle, Washington
| | - Diana G Eng
- Division of Nephrology, University of Washington, Seattle, Washington
| | - Natalya Kaverina
- Division of Nephrology, University of Washington, Seattle, Washington
| | - Maria W Sunseri
- Division of Nephrology, University of Washington, Seattle, Washington
| | | | - Peter Rabinovitch
- Department of Pathology, University of Washington, Seattle, Washington
| | - Felix B Engel
- Department of Nephropathology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany; and
| | - Christoph Daniel
- Department of Nephropathology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany; and
| | - Kerstin Amann
- Department of Nephropathology, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany; and
| | - Julia Lichtnekert
- Division of Nephrology, University of Washington, Seattle, Washington
| | - Jeffrey W Pippin
- Division of Nephrology, University of Washington, Seattle, Washington
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Sugahara G, Naito I, Miyagawa Y, Komiyama T, Takemura N, Kobayashi R, Mineshige T, Kamiie J, Shirota K. Pathological features of proteinuric nephropathy resembling Alport syndrome in a young Pyrenean Mountain dog. J Vet Med Sci 2015; 77:1175-8. [PMID: 25892536 PMCID: PMC4591163 DOI: 10.1292/jvms.15-0117] [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] [Indexed: 11/22/2022] Open
Abstract
The renal biopsy tissue from a 9-month-old, male Pyrenean Mountain dog with renal disorder and severe proteinuria was examined. Ultrastructural examination revealed multilaminar splitting and fragmentation of the glomerular basement membrane (GBM) and diffuse podocyte foot process effacement. Immunofluorescent staining for α(IV) chains revealed presence of α5(IV) and complete absence of α3(IV) and α4(IV) chains in the GBM. Immunohistochemistry also revealed decreased and altered expression of nephrin and podocin in the glomeruli compared with normal canine glomeruli. These results suggested that the glomerular disease of the present case might be consistent with canine hereditary nephropathy resembling human Alport syndrome caused by genetic defect of type IV collagen, and indicated possible contribution of podocyte injury to severe proteinuria in this case.
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Affiliation(s)
- Go Sugahara
- Laboratory of Veterinary Pathology, School of Veterinary Medicine, Azabu University, 1-17-71 Fuchinobe, Chuo-ku, Sagamihara, Kanagawa 252-5201, Japan
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Remodeling of epithelial cells and basement membranes in a corneal deficiency model with long-term follow-up. J Transl Med 2015; 95:168-79. [PMID: 25531563 DOI: 10.1038/labinvest.2014.146] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Revised: 10/20/2014] [Accepted: 10/22/2014] [Indexed: 01/16/2023] Open
Abstract
The ocular surface consists of the cornea, conjunctiva, and the limbus that is located in the transitional zone between the cornea and conjunctiva. The corneal epithelial cells are generated through the mitosis of corneal epithelial stem cells in the limbus. This study investigated a rabbit corneal deficiency model prepared by the surgical removal of the corneal and limbal epithelia, which express cytokeratin 12 (K12). After the surgery, K13-expressing conjunctival epithelium migrated onto the corneal surface and completely covered the surface, leading to neovascularization and corneal opacification. However, at 24 and 48 weeks after the surgery, K12-expressing cornea-like cells reappeared on the model ocular surface. These cells formed an island surrounded by invaded conjunctiva and were isolated from the limbus. Interestingly, in the 24-week model surface, α1(IV) and α2(IV) collagen chains, which are normally found in the basement membrane of the native limbus and conjunctiva, and not in the cornea, were continuously deposited throughout the entire basement membrane, including the basement membrane under cornea-like cells. By contrast, in the 48-week model surface, α1(IV) and α2(IV) collagen chains were absent from the basement membrane beneath the central part of cornea-like cells and were localized below the invaded conjunctiva and the transitional zone between cornea-like cells and the invaded conjunctiva, which had similar distribution to the native ocular basement membrane. Moreover, K12, K14, p63, vimentin, and α1(IV) and α2(IV) collagen chains, which are colocalized in the native limbus, were all present at the transitional zone of the 48-week model surface. Therefore, a limbus-like structure appeared to be reconstructed on the surface of the 48-week model as a stem cell niche. This study should aid in the understanding of human corneal deficiency, the correlation between the epithelial cell phenotype and the composition of the basement membrane, and the epithelial stem cell niche.
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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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Horibe H, Fujimaki T, Oguri M, Kato K, Matsuoka R, Abe S, Tokoro F, Arai M, Noda T, Watanabe S, Yamada Y. Association of a polymorphism of the interleukin 6 receptor gene with chronic kidney disease in Japanese individuals. Nephrology (Carlton) 2014; 20:273-8. [PMID: 25524550 DOI: 10.1111/nep.12381] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/15/2014] [Indexed: 12/28/2022]
Abstract
AIM Various loci and genes that confer susceptibility to coronary artery disease (CAD) have been identified in Caucasian populations by genome-wide association studies (GWASs). The aim of the present study was to examine a possible association of chronic kidney disease (CKD) with 29 polymorphisms previously identified as susceptibility loci for CAD by meta-analyses of GWASs. METHODS The study population comprised 2247 Japanese individuals, including 1588 subjects with CKD [estimated glomerular filtration rate (eGFR) of <60 mL min(-1) 1.73 m(-2) ] and 659 controls (eGFR of ≥90 mL min(-1) 1.73 m(-2) ). The genotypes for 29 polymorphisms of 28 candidate genes were determined. RESULTS The χ(2) test revealed that rs4845625 (T→C) of IL6R, rs4773144 (A→G) of COL4A1, rs9319428 (G→A) of FLT1, and rs46522 (T→C) of UBE2Z were significantly (P < 0.05) related to CKD. Multivariable logistic regression analysis with adjustment for age, sex, body mass index, and the prevalence of smoking, hypertension, diabetes mellitus, and dyslipidaemia revealed that rs4845625 of IL6R (P = 0.0008; dominant model; odds ratio, 1.49), rs4773144 of COL4A1 (P = 0.0252; dominant model; odds ratio, 1.28), and rs9319428 of FLT1 (P = 0.0260: additive model; odds ratio, 0.77) were significantly associated with CKD. The serum concentration of creatinine was significantly (P = 0.0065) greater and eGFR was significantly (P = 0.0009) lower in individuals with the TC or CC genotype of IL6R than in those with the TT genotype. CONCLUSION The rs4845625 of IL6R may be a susceptibility locus for CKD in Japanese individuals.
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Affiliation(s)
- Hideki Horibe
- Department of Cardiovascular Medicine, Gifu Prefectural Tajimi Hospital, Tajimi, Japan
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Oefner CM, Sharkey A, Gardner L, Critchley H, Oyen M, Moffett A. Collagen type IV at the fetal-maternal interface. Placenta 2014; 36:59-68. [PMID: 25465704 PMCID: PMC4302218 DOI: 10.1016/j.placenta.2014.10.012] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Revised: 10/16/2014] [Accepted: 10/21/2014] [Indexed: 11/25/2022]
Abstract
Introduction Extracellular matrix proteins play a crucial role in influencing the invasion of trophoblast cells. However the role of collagens and collagen type IV (col-IV) in particular at the implantation site is not clear. Methods Immunohistochemistry was used to determine the distribution of collagen types I, III, IV and VI in endometrium and decidua during the menstrual cycle and the first trimester of pregnancy. Expression of col-IV alpha chains during the reproductive cycle was determined by qPCR and protein localisation by immunohistochemistry. The structure of col-IV in placenta was examined using transmission electron microscopy. Finally, the expression of col-IV alpha chain NC1 domains and collagen receptors was localised by immunohistochemistry. Results Col-IV alpha chains were selectively up-regulated during the menstrual cycle and decidualisation. Primary extravillous trophoblast cells express collagen receptors and secrete col-IV in vitro and in vivo, resulting in the increased levels found in decidua basalis compared to decidua parietalis. A novel expression pattern of col-IV in the mesenchyme of placental villi, as a three-dimensional network, was found. NC1 domains of col-IV alpha chains are known to regulate tumour cell migration and the selective expression of these domains in decidua basalis compared to decidua parietalis was determined. Discussion Col-IV is expressed as novel forms in the placenta. These findings suggest that col-IV not only represents a structural protein providing tissue integrity but also influences the invasive behaviour of trophoblast cells at the implantation site. Our data suggest that progesterone might regulate collagen type IV. Primary extravillous trophoblast cells secrete collagen type IV. A novel three-dimensional network of collagen type IV in placenta is presented. Trophoblast cells express integrin alpha 10, integrin alpha 11 and collagen receptors DDR-1 and DDR-2.
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Affiliation(s)
- C M Oefner
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge CB2 1QP, United Kingdom.
| | - A Sharkey
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge CB2 1QP, United Kingdom
| | - L Gardner
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge CB2 1QP, United Kingdom
| | - H Critchley
- MRC Centre for Reproductive Health, University of Edinburgh, 47 Little France Crescent, Edinburgh EH16 4TJ, United Kingdom
| | - M Oyen
- Department of Engineering, University of Cambridge, Trumpington Street, Cambridge CB2 1PZ, United Kingdom
| | - A Moffett
- Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge CB2 1QP, United Kingdom
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The collagenopathies: review of clinical phenotypes and molecular correlations. Curr Rheumatol Rep 2014; 16:394. [PMID: 24338780 DOI: 10.1007/s11926-013-0394-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Genetic defects of collagen formation (the collagenopathies) affect almost every organ system and tissue in the body. They can be grouped by clinical phenotype, which usually correlates with the tissue distribution of the affected collagen subtype. Many of these conditions present in childhood; however, milder phenotypes presenting in adulthood are increasingly recognized. Many are difficult to differentiate clinically. Precise diagnosis by means of genetic testing assists in providing prognosis information, family counseling, and individualized treatment. This review provides an overview of the current range of clinical presentations associated with collagen defects, and the molecular mechanisms important to understanding how the results of genetic testing affect medical care.
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Robertson WE, Rose KL, Hudson BG, Vanacore RM. Supramolecular organization of the α121-α565 collagen IV network. J Biol Chem 2014; 289:25601-10. [PMID: 25006246 DOI: 10.1074/jbc.m114.571844] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Collagen IV is a family of 6 chains (α1-α6), that form triple-helical protomers that assemble into supramolecular networks. Two distinct networks with chain compositions of α121 and α345 have been established. These oligomerize into separate α121 and α345 networks by a homotypic interaction through their trimeric noncollagenous (NC1) domains, forming α121 and α345 NC1 hexamers, respectively. These are stabilized by novel sulfilimine (-S=N-) cross-links, a covalent cross-link that forms between Met(93) and Hyl(211) at the trimer-trimer interface. A third network with a composition of α1256 has been proposed, but its supramolecular organization has not been established. In this study we investigated the supramolecular organization of this network by determining the chain identity of sulfilimine-cross-linked NC1 domains derived from the α1256 NC1 hexamer. High resolution mass spectrometry analyses of peptides revealed that sulfilimine bonds specifically cross-link α1 to α5 and α2 to α6 NC1 domains, thus providing the spatial orientation between interacting α121 and α565 trimers. Using this information, we constructed a three-dimensional homology model in which the α565 trimer shows a good chemical and structural complementarity to the α121 trimer. Our studies provide the first chemical evidence for an α565 protomer and its heterotypic interaction with the α121 protomer. Moreover, our findings, in conjunction with our previous studies, establish that the six collagen IV chains are organized into three canonical protomers α121, α345, and α565 forming three distinct networks: α121, α345, and α121-α565, each of which is stabilized by sulfilimine bonds between their C-terminal NC1 domains.
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Affiliation(s)
- Wesley E Robertson
- From the Division of Nephrology and Hypertension, Department of Medicine
| | - Kristie L Rose
- Department of Biochemistry, Proteomics Laboratory-Mass Spectrometry Research Center, Vanderbilt University Medical Center, Nashville, Tennessee 37232
| | - Billy G Hudson
- From the Division of Nephrology and Hypertension, Department of Medicine, Department of Biochemistry, Center for Matrix Biology, Department of Pathology, Microbiology, and Immunology, and
| | - Roberto M Vanacore
- From the Division of Nephrology and Hypertension, Department of Medicine, Center for Matrix Biology,
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Weckmann M, Moir LM, Heckman CA, Black JL, Oliver BG, Burgess JK. Lamstatin--a novel inhibitor of lymphangiogenesis derived from collagen IV. J Cell Mol Med 2014; 16:3062-73. [PMID: 22998238 PMCID: PMC4393734 DOI: 10.1111/j.1582-4934.2012.01648.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2012] [Accepted: 09/12/2012] [Indexed: 12/31/2022] Open
Abstract
The lymphatic system is essential for the maintenance of tissue homeostasis and immunity. Its dysfunction in disease (such as lymphangioleiomyomatosis) can lead to chylous effusions, oedema or dissemination of malignant cells. Collagen IV has six α chains, of which some of the non-collagenous-1 domains have endogenous anti-angiogenic properties, however, little is known about specific endogenous anti-lymphangiogenic characteristics. In this study we sought to investigate the expression levels of collagen IV non-collagenous-1 domains in lung tissue of patients with and without lymphangioleiomyomatosis to explore the hypothesis that a member of the collagen IV family, specifically the non-collagenous domain-1 of α5, which we named lamstatin, has anti-lymphangiogenic properties. Levels of lamstatin detected by immunohistochemistry were decreased in lungs of lymphangioleiomyomatosis patients. We produced recombinant lamstatin in an E.coli expression system and synthesized a 17-amino acid peptide from a theoretically identified, active region (CP17) and tested their effects in vitro and in vivo. Recombinant lamstatin and CP17 inhibited proliferation, migration and cord formation of human microvascular lung lymphatic endothelial cells, in vitro. Furthermore, lamstatin and CP17 decreased complexity and dysplasia of the tumour-associated lymphatic network in a lung adenocarcinoma xenograft mouse model. In this study we identified a novel, direct inhibitor of lymphangiogenesis, derived from collagen IV. This may prove useful for exploring new avenues of treatment for lymphangioleiomyomatosis and metastasis via the lymphatic system in general.
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Affiliation(s)
- Markus Weckmann
- Woolcock Institute of Medical Research, Glebe, NSW, Australia
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Sá MJN, Fieremans N, de Brouwer APM, Sousa R, Costa FTE, Brito MJ, Carvalho F, Rodrigues M, de Sousa FT, Felgueiras J, Neves F, Carvalho A, Ramos U, Vizcaíno JR, Alves S, Carvalho F, Froyen G, Oliveira JP. Deletion of the 5′exons ofCOL4A6is not needed for the development of diffuse leiomyomatosis in patients with Alport syndrome. J Med Genet 2013; 50:745-53. [DOI: 10.1136/jmedgenet-2013-101670] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Comparative analysis of basal lamina type IV collagen α chains, matrix metalloproteinases-2 and -9 expressions in oral dysplasia and invasive carcinoma. Acta Histochem 2013; 115:113-9. [PMID: 22694915 DOI: 10.1016/j.acthis.2012.05.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2012] [Revised: 04/30/2012] [Accepted: 05/01/2012] [Indexed: 11/20/2022]
Abstract
The aim of this study was to compare the expressions of basal lamina (BL) collagen IV α chains and matrix metalloproteinases (MMP)-2 and MMP-9 in oral dysplasia (OED) and invasive carcinoma. Ten cases each of OEDs, carcinomas-in situ and oral squamous cell carcinomas (OSCCs) were examined by immunohistochemistry. Another 5 cases, each of normal and hyperplastic oral mucosa, served as controls. Results showed that α1(IV)/α2(IV) and α5(IV)/α6(IV) chains were intact in BLs of control and OEDs. In BLs of carcinoma-in situ, α1(IV)/α2(IV) chains preceded α5(IV)/α6(IV) chains in showing incipient signs of disruption. OSCCs exhibited varying degrees of collagen α(IV) chain degradation. MMP-2 and MMP-9 were absent in controls and OED, but weakly detectable in carcinoma-in situ. In OSCC, these proteolytic enzymes were expressed in areas corresponding to collagen α(IV) chain loss. Enzymatic activity was enhanced in higher grade OSCC, and along the tumor advancing front. Overall the present findings suggest that loss of BL collagen α(IV) chains coincided with gain of expression for MMP-2 and MMP-9, and that these protein alterations are crucial events during progression from OED to OSCC.
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Extracellular Matrix is an Important Component of Limbal Stem Cell Niche. J Funct Biomater 2012; 3:879-94. [PMID: 24955751 PMCID: PMC4030928 DOI: 10.3390/jfb3040879] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2012] [Revised: 12/04/2012] [Accepted: 12/05/2012] [Indexed: 02/07/2023] Open
Abstract
Extracellular matrix plays an important role in stem cell niche which maintains the undifferentiated stem cell phenotype. Human corneal epithelial stem cells are presumed to reside mainly at the limbal basal epithelium. Efforts have been made to characterize different components of the extracellular matrix that are preferentially expressed at the limbus. Mounting evidence from experimental data suggest that these components are part of the stem cell niche and play a role in the homeostasis of limbal stem cells. The extracellular matrix provides a mechanical and structural support as well as regulates cellular functions such as adhesion, migration, proliferation, self-renewal and differentiation. Optimization of the extracellular matrix components might be able to recreate an ex vivo stem cell niche to expand limbal stem cells.
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Sillat T, Saat R, Pöllänen R, Hukkanen M, Takagi M, Konttinen YT. Basement membrane collagen type IV expression by human mesenchymal stem cells during adipogenic differentiation. J Cell Mol Med 2012; 16:1485-95. [PMID: 21883898 PMCID: PMC3823217 DOI: 10.1111/j.1582-4934.2011.01442.x] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
During adipogenic differentiation human mesenchymal stem cells (hMSC) produce collagen type IV. In immunofluorescence staining differentiating hMSCs started to express collagen type IV when Oil Red O-positive fat droplets appeared intracellularly. Quantitative real time-polymerase chain reaction confirmed progressive increase of collagen type IV α1 and α2 mRNA levels over time, 18.6- and 12.2-fold by day 28, respectively, whereas the copy numbers of α3–α6 mRNAs remained rather stable and low. Type IV collagen was in confocal laser scanning microscopy seen around adipocytes, where also laminins and nidogen were found, suggesting pericellular deposition of all key components of the fully developed basement membrane. Immunofluorescence staining of matrix metalloproteinase-2 (MMP-2, 72 kD type IV collagenase, gelatinase A) and MMP-9 (92 kD type IV collagenase, gelatinase B) disclosed only faint staining of MSCs, but MMP-9 was strongly induced during adipogenesis, whereas MSC supernatants disclosed in zymography pro-MMP-2 and faint pro-MMP-9 bands, which increased over time, with partial conversion of pro-MMP-2 to its active 62 kD form. Differentiation was associated with increasing membrane type 1-MMP/MMP-14 and tissue inhibitor of metalloproteinase-2 (TIMP-2) staining, which may enable participation of type IV collagenases in basement membrane remodelling via ternary MT1-MMP/TIMP-2/MMP-2 or −9 complexes, focalizing the fully active enzyme to the cell surface. MMP-9, which increased more in immunofluorescence staining, was perhaps preferentially bound to cell surface and/or remodelling adipocyte basement membrane. These results suggest that upon MSC-adipocyte differentiation collagen type IV synthesis and remodelling become necessary when intracellular accumulation of fat necessitates a dynamically supporting and instructive, partly denatured adipogenic pericellular type IV collagen scaffold.
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Affiliation(s)
- Tarvo Sillat
- Department of Medicine/Invärtes medicin, Helsinki University Central Hospital, Helsinki, Finland
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Kruegel J, Rubel D, Gross O. Alport syndrome--insights from basic and clinical research. Nat Rev Nephrol 2012; 9:170-8. [PMID: 23165304 DOI: 10.1038/nrneph.2012.259] [Citation(s) in RCA: 168] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In 1927, Arthur C. Alport first published his description of a triad of symptoms in a family with hereditary congenital haemorrhagic nephritis, deafness and ocular changes. A few years after his death, this group of symptoms was renamed Alport syndrome. To this day, Alport syndrome still inevitably leads to end-stage renal disease and the need for renal replacement therapy, starting in young adulthood. During the past two decades, research into this rare disease has focused on the effects of mutations in collagen type IV and the role of changes in podocytes and the glomerular basement membrane that lead to early kidney fibrosis. Animal models of Alport syndrome also demonstrate the pathogenetic importance of interactions between podocytes and the extracellular matrix. Such models might also help researchers to answer basic questions about podocyte function and the development of fibrosis, and to develop new therapeutic approaches that might be of use in other kidney diseases. In this Review, we discuss the latest basic and clinical research on Alport syndrome, focusing on the roles of podocyte pathology and the extracellular matrix. We also highlight early diagnosis and treatment options for young patients with this disorder.
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Affiliation(s)
- Jenny Kruegel
- Department of Nephrology and Rheumatology, University Medicine Göttingen, Robert-Koch-Straße 40, 37075 Göttingen, Germany
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47
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Hirashima K, Iyama KI, Baba Y, Honda Y, Sado Y, Ninomiya Y, Watanabe M, Takamori H, Beppu T, Baba H. Differential expression of basement membrane type IV collagen α2 and α6 chains as a prognostic factor in patients with extrahepatic bile duct carcinoma. J Surg Oncol 2012; 107:402-7. [DOI: 10.1002/jso.23225] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2012] [Accepted: 06/25/2012] [Indexed: 11/09/2022]
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Burgess JK, Weckmann M. Matrikines and the lungs. Pharmacol Ther 2012; 134:317-37. [PMID: 22366287 DOI: 10.1016/j.pharmthera.2012.02.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2012] [Accepted: 02/03/2012] [Indexed: 01/09/2023]
Abstract
The extracellular matrix is a complex network of fibrous and nonfibrous molecules that not only provide structure to the lung but also interact with and regulate the behaviour of the cells which it surrounds. Recently it has been recognised that components of the extracellular matrix proteins are released, often through the action of endogenous proteases, and these fragments are termed matrikines. Matrikines have biological activities, independent of their role within the extracellular matrix structure, which may play important roles in the lung in health and disease pathology. Integrins are the primary cell surface receptors, characterised to date, which are used by the matrikines to exert their effects on cells. However, evidence is emerging for the need for co-factors and other receptors for the matrikines to exert their effects on cells. The potential for matrikines, and peptides derived from these extracellular matrix protein fragments, as therapeutic agents has recently been recognised. The natural role of these matrikines (including inhibitors of angiogenesis and possibly inflammation) make them ideal targets to mimic as therapies. A number of these peptides have been taken forward into clinical trials. The focus of this review will be to summarise our current understanding of the role, and potential for highly relevant actions, of matrikines in lung health and disease.
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Affiliation(s)
- Janette K Burgess
- Cell Biology, Woolcock Institute of Medical Research, Sydney, NSW, Australia.
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Saito K, Yonezawa T, Minaguchi J, Kurosaki M, Suetsugu S, Nakajima A, Nomoto H, Morizane Y, Sado Y, Sugimoto M, Kusachi S, Ninomiya Y. Distribution of α(IV) collagen chains in the ocular anterior segments of adult mice. Connect Tissue Res 2011; 52:147-56. [PMID: 20672978 DOI: 10.3109/03008207.2010.492062] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The distribution of the collagen chains from α1(IV) to α6(IV) could serve as a basis for the characterization of type IV collagen. In this study, immunohistochemistry of the ocular anterior segment of adult mice was performed using specific monoclonal antibodies against each chain in the series from α1(IV) to α6(IV). The results show that the components of type IV collagen in vascular basement membranes are α1(IV) and α2(IV) with or without α5(IV) and α6(IV) chains and those in epithelium and muscle basement membranes are α1(IV), α2(IV), α5(IV), and α6(IV) chains. In corneal endothelium, pigmented epithelium of iris and ciliary body, and trabecular meshwork, α3(IV) and α4(IV) chains are also expressed in addition to α1(IV), α2(IV), α5(IV), and α6(IV) chains. Moreover, we investigated the change in molecular composition in ciliary body during postnatal development. α3(IV) and α4(IV) chains were also expressed in addition to α1(IV), α2(IV), α5(IV), and α6(IV) chains in ciliary pigmented epithelium basement membrane from 7 days after birth. This result suggests that the basement membranes gradually change their biochemical features owing to temporal regulation. Taken together, these findings suggest that the different distribution and the developmental expression of α1(IV) to α6(IV) chains are associated with the tissue-specific function of type IV collagen in basement membranes.
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Affiliation(s)
- Kenji Saito
- Department of Molecular Biology and Biochemistry, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Kita-ku, Okayama, Japan
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Feitosa NM, Richardson R, Bloch W, Hammerschmidt M. Basement membrane diseases in zebrafish. Methods Cell Biol 2011; 105:191-222. [PMID: 21951531 DOI: 10.1016/b978-0-12-381320-6.00008-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Basement membranes (BMs) are a complex, sheet-like network of specialized extracellular matrix that underlies epithelial cells and surrounds muscle cells. They provide adherence between neighboring tissues, permit some flexibility of these adherent structures, and can act as a store for growth factors and as a guide for cell migration. The BM is not just a static structure; its deposition and remodeling are important for many processes including embryonic development, immune response, and wound healing. To date, dysfunction in BM deposition or remodeling has been linked to many human congenital disorders and diseases, affecting many different tissues in the body, including malformations, dystrophies, and cancer. However, many questions remain to be answered on the role BM proteins, and their mutations, play in the pathogenesis of human disease. In recent years, the zebrafish (Danio rerio) has emerged as a powerful animal model for human development and disease. In the first part of this chapter, we provide an overview of described defects caused by BM dysfunction in zebrafish, including development and function of notochord, muscle, central nervous system, skin, cardiovascular system, and kidney. In the second part, we will describe details of methods used to visualize and assess the structure of the BM in zebrafish, and to functionally analyze its different components.
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