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Lau K, Reichheld S, Xian M, Sharpe SJ, Cerruti M. Directed Assembly of Elastic Fibers via Coacervate Droplet Deposition on Electrospun Templates. Biomacromolecules 2024; 25:3519-3531. [PMID: 38742604 DOI: 10.1021/acs.biomac.4c00180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Elastic fibers provide critical elasticity to the arteries, lungs, and other organs. Elastic fiber assembly is a process where soluble tropoelastin is coacervated into liquid droplets, cross-linked, and deposited onto and into microfibrils. While much progress has been made in understanding the biology of this process, questions remain regarding the timing of interactions during assembly. Furthermore, it is unclear to what extent fibrous templates are needed to guide coacervate droplets into the correct architecture. The organization and shaping of coacervate droplets onto a fiber template have never been previously modeled or employed as a strategy for shaping elastin fiber materials. Using an in vitro system consisting of elastin-like polypeptides (ELPs), genipin cross-linker, electrospun polylactic-co-glycolic acid (PLGA) fibers, and tannic acid surface coatings for fibers, we explored ELP coacervation, cross-linking, and deposition onto fiber templates. We demonstrate that integration of coacervate droplets into a fibrous template is primarily influenced by two factors: (1) the balance of coacervation and cross-linking and (2) the surface energy of the fiber templates. The success of this integration affects the mechanical properties of the final fiber network. Our resulting membrane materials exhibit highly tunable morphologies and a range of elastic moduli (0.8-1.6 MPa) comparable to native elastic fibers.
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Affiliation(s)
- Kirklann Lau
- Department of Mining and Materials Engineering, McGill University, 3610 University Street, Wong Building 2250, Montreal, Quebec H3A 0C5, Canada
| | - Sean Reichheld
- Molecular Medicine, Hospital for Sick Children, Peter Gilgan Center for Research and Learning, 686 Bay Street, Room 20.9714, Toronto, Ontario M5G 1X8, Canada
| | - Mingqian Xian
- Department of Mining and Materials Engineering, McGill University, 3610 University Street, Wong Building 2250, Montreal, Quebec H3A 0C5, Canada
| | - Simon J Sharpe
- Molecular Medicine, Hospital for Sick Children, Peter Gilgan Center for Research and Learning, 686 Bay Street, Room 20.9714, Toronto, Ontario M5G 1X8, Canada
- Department of Biochemistry, University of Toronto, 1 King's College Circle, Medical Sciences Building, Room 5207, Toronto, Ontario M5S 1A8, Canada
| | - Marta Cerruti
- Department of Mining and Materials Engineering, McGill University, 3610 University Street, Wong Building 2250, Montreal, Quebec H3A 0C5, Canada
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Neupane S, Williamson DB, Roth RA, Halabi CM, Haltiwanger RS, Holdener BC. Poglut2/3 double knockout in mice results in neonatal lethality with reduced levels of fibrillin in lung tissues. J Biol Chem 2024; 300:107445. [PMID: 38844137 DOI: 10.1016/j.jbc.2024.107445] [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: 03/24/2024] [Revised: 05/08/2024] [Accepted: 05/17/2024] [Indexed: 06/30/2024] Open
Abstract
Fibrillin microfibrils play a critical role in the formation of elastic fibers, tissue/organ development, and cardiopulmonary function. These microfibrils not only provide structural support and flexibility to tissues, but they also regulate growth factor signaling through a plethora of microfibril-binding proteins in the extracellular space. Mutations in fibrillins are associated with human diseases affecting cardiovascular, pulmonary, skeletal, and ocular systems. Fibrillins consist of up to 47 epidermal growth factor-like repeats, of which more than half are modified by protein O-glucosyltransferase 2 (POGLUT2) and/or POGLUT3. Loss of these modifications reduces secretion of N-terminal fibrillin constructs overexpressed in vitro. Here, we investigated the role of POGLUT2 and POGLUT3 in vivo using a Poglut2/3 double knockout (DKO) mouse model. Blocking O-glucosylation caused neonatal death with skeletal, pulmonary, and eye defects reminiscent of fibrillin/elastin mutations. Proteomic analyses of DKO dermal fibroblast medium and extracellular matrix provided evidence that fibrillins were more sensitive to loss of O-glucose compared to other POGLUT2/3 substrates. This conclusion was supported by immunofluorescent analyses of late gestation DKO lungs where FBN levels were reduced and microfibrils appeared fragmented in the pulmonary arteries and veins, bronchioles, and developing saccules. Defects in fibrillin microfibrils likely contributed to impaired elastic fiber formation and histological changes observed in DKO lung blood vessels, bronchioles, and saccules. Collectively, these results highlight the importance of POGLUT2/3-mediated O-glucosylation in vivo and open the possibility that O-glucose modifications on fibrillin influence microfibril assembly and or protein interactions in the ECM environment.
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Affiliation(s)
- Sanjiv Neupane
- Department of Biochemistry and Cell Biology, Stony Brook University, Stony Brook, New York, USA
| | - Daniel B Williamson
- Complex Carbohydrate Research Center, Department of Biochemistry and Molecular Biology, University of Georgia, Athens, Georgia, USA
| | - Robyn A Roth
- Division of Nephrology, Department of Pediatrics, Washington University School of Medicine, St Louis, Missouri, USA
| | - Carmen M Halabi
- Division of Nephrology, Department of Pediatrics, Washington University School of Medicine, St Louis, Missouri, USA
| | - Robert S Haltiwanger
- Complex Carbohydrate Research Center, Department of Biochemistry and Molecular Biology, University of Georgia, Athens, Georgia, USA.
| | - Bernadette C Holdener
- Department of Biochemistry and Cell Biology, Stony Brook University, Stony Brook, New York, USA.
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3
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Wozny MR, Nelea V, Siddiqui IFS, Wanga S, de Waard V, Strauss M, Reinhardt DP. Microfibril-associated glycoprotein 4 forms octamers that mediate interactions with elastogenic proteins and cells. Nat Commun 2024; 15:4015. [PMID: 38740766 DOI: 10.1038/s41467-024-48377-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 04/29/2024] [Indexed: 05/16/2024] Open
Abstract
Microfibril-associated glycoprotein 4 (MFAP4) is a 36-kDa extracellular matrix glycoprotein with critical roles in organ fibrosis, chronic obstructive pulmonary disease, and cardiovascular disorders, including aortic aneurysms. MFAP4 multimerises and interacts with elastogenic proteins, including fibrillin-1 and tropoelastin, and with cells via integrins. Structural details of MFAP4 and its potential interfaces for these interactions are unknown. Here, we present a cryo-electron microscopy structure of human MFAP4. In the presence of calcium, MFAP4 assembles as an octamer, where two sets of homodimers constitute the top and bottom halves of each octamer. Each homodimer is linked together by an intermolecular disulphide bond. A C34S missense mutation prevents disulphide-bond formation between monomers but does not prevent octamer assembly. The atomic model, built into the 3.55 Å cryo-EM map, suggests that salt-bridge interactions mediate homodimer assembly, while non-polar residues form the interface between octamer halves. In the absence of calcium, an MFAP4 octamer dissociates into two tetramers. Binding studies with fibrillin-1, tropoelastin, LTBP4, and small fibulins show that MFAP4 has multiple surfaces for protein-protein interactions, most of which depend upon MFAP4 octamer assembly. The C34S mutation does not affect these protein interactions or cell interactions. MFAP4 assemblies with fibrillin-1 abrogate MFAP4 interactions with cells.
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Affiliation(s)
- Michael R Wozny
- Faculty of Medicine and Health Sciences, McGill University, Montreal, QC, Canada
| | - Valentin Nelea
- Faculty of Medicine and Health Sciences, McGill University, Montreal, QC, Canada
- Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, QC, Canada
| | | | - Shaynah Wanga
- Amsterdam UMC location University of Amsterdam, Medical Biochemistry, Amsterdam, The Netherlands; Amsterdam Cardiovascular Sciences, Amsterdam, The Netherlands
| | - Vivian de Waard
- Amsterdam UMC location University of Amsterdam, Medical Biochemistry, Amsterdam, The Netherlands; Amsterdam Cardiovascular Sciences, Amsterdam, The Netherlands
| | - Mike Strauss
- Faculty of Medicine and Health Sciences, McGill University, Montreal, QC, Canada.
| | - Dieter P Reinhardt
- Faculty of Medicine and Health Sciences, McGill University, Montreal, QC, Canada.
- Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, QC, Canada.
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4
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Shi F, Liu K, Chen G, Chang Y, Xue C. Investigation of the Presence of Fibrillin in Sea Cucumber ( Apostichopus japonicus) Body Wall by Utilizing Targeted Proteomics and Visualization Strategies. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:8798-8804. [PMID: 38548625 DOI: 10.1021/acs.jafc.4c00046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/18/2024]
Abstract
Fibrillin is an important structural protein in connective tissues. The presence of fibrillin in sea cucumber Apostichopus japonicus is still poorly understood, which limits our understanding of the role of fibrillin in the A. japonicus microstructure. The aim of this study was to clarify the presence of fibrillin in the sea cucumber A. japonicus body wall. Herein, the presence of fibrillin in sea cucumber A. japonicus was investigated by utilizing targeted proteomics and visualization strategies. The contents of three different isoforms of fibrillin with high abundance in A. japonicus were determined to be 0.96, 2.54, and 0.15 μg/g (wet base), respectively. The amino acid sequence of fibrillin (GeneBank number: PIK56741.1) that started at position 631 and ended at position 921 was selected for cloning and expressing antigen. An anti-A. japonicus fibrillin antibody with a titer greater than 1:64 000 was successfully obtained. It was observed that the distribution of fibrillin in the A. japonicus body wall was scattered and dispersed in the form of fibril bundles at the microscale. It further observed that fibrillin was present near collagen fibrils and some entangled outside the collagen fibrils at the nanoscale. Moreover, the stoichiometry of the most dominant collagen and fibrillin molecules in A. japonicus was determined to be approximately 250:1. These results contribute to an understanding of the role of fibrillin in the sea cucumber microstructure.
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Affiliation(s)
- Feifei Shi
- College of Food Science and Engineering, Ocean University of China, 1299 Sansha Road, Qingdao 266404, China
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Kaimeng Liu
- College of Food Science and Engineering, Ocean University of China, 1299 Sansha Road, Qingdao 266404, China
| | - Guangning Chen
- College of Food Science and Engineering, Ocean University of China, 1299 Sansha Road, Qingdao 266404, China
| | - Yaoguang Chang
- College of Food Science and Engineering, Ocean University of China, 1299 Sansha Road, Qingdao 266404, China
| | - Changhu Xue
- College of Food Science and Engineering, Ocean University of China, 1299 Sansha Road, Qingdao 266404, China
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5
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Zeyer KA, Bornert O, Nelea V, Bao X, Leytens A, Sharoyan S, Sengle G, Antonyan A, Bruckner-Tuderman L, Dengjel J, Reinhardt DP, Nyström A. Dipeptidyl Peptidase-4-Mediated Fibronectin Processing Evokes a Profibrotic Extracellular Matrix. J Invest Dermatol 2024:S0022-202X(24)00260-4. [PMID: 38570029 DOI: 10.1016/j.jid.2024.03.020] [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: 11/09/2023] [Revised: 02/21/2024] [Accepted: 03/13/2024] [Indexed: 04/05/2024]
Abstract
Fibronectin serves as a platform to guide and facilitate deposition of collagen and fibrillin microfibrils. During development of fibrotic diseases, altered fibronectin deposition in the extracellular matrix (ECM) is generally an early event. After this, dysregulated organization of fibrillins and fibrillar collagens occurs. Because fibronectin is an essential orchestrator of healthy ECM, perturbation of its ECM-organizational capacity may be involved in development of fibrosis. To investigate this, we employed recessive dystrophic epidermolysis bullosa as a disease model with progressive, severe dermal fibrosis. Fibroblasts from donors with recessive dystrophic epidermolysis bullosa in 2-dimensional and 3-dimensional cultures displayed dysregulated fibronectin deposition. Our analyses revealed that increase of profibrotic dipeptidyl peptidase-4-positive fibroblasts coincides with altered fibronectin deposition. Dipeptidyl peptidase-4 inhibitors normalized deposition of fibronectin and subsequently of fibrillin microfibrils and collagen I. Intriguingly, proteomics and inhibitor and mutagenesis studies disclosed that dipeptidyl peptidase-4 modulates ECM deposition through the proteolysis of the fibronectin N-terminus. Our study provides mechanistic insights into the observed profibrotic activities of dipeptidyl peptidase-4 and extends the understanding of fibronectin-guided ECM assembly in health and disease.
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Affiliation(s)
- Karina A Zeyer
- Department of Dermatology, Medical Faculty, Medical Center - University of Freiburg, Freiburg, Germany
| | - Olivier Bornert
- Department of Dermatology, Medical Faculty, Medical Center - University of Freiburg, Freiburg, Germany
| | - Valentin Nelea
- Faculty of Medicine and Health Sciences, McGill University, Montreal, Canada; Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, Canada
| | - Xinyi Bao
- Department of Dermatology, Medical Faculty, Medical Center - University of Freiburg, Freiburg, Germany; Faculty of Biology, University of Freiburg, Freiburg, Germany
| | - Alexandre Leytens
- Department of Biology, University of Fribourg, Fribourg, Switzerland
| | - Svetlana Sharoyan
- H. Buniatian Institute of Biochemistry of Armenian NAS, Yerevan, Republic of Armenia
| | - Gerhard Sengle
- Center for Biochemistry, Medical Faculty, University of Cologne, Cologne, Germany; Center for Molecular Medicine Cologne (CMMC), Medical Faculty, University of Cologne, Cologne, Germany; Department of Pediatrics and Adolescent Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany; Cologne Center for Musculoskeletal Biomechanics (CCMB), Cologne, Germany
| | - Alvard Antonyan
- H. Buniatian Institute of Biochemistry of Armenian NAS, Yerevan, Republic of Armenia
| | - Leena Bruckner-Tuderman
- Department of Dermatology, Medical Faculty, Medical Center - University of Freiburg, Freiburg, Germany
| | - Jörn Dengjel
- Department of Biology, University of Fribourg, Fribourg, Switzerland
| | - Dieter P Reinhardt
- Faculty of Medicine and Health Sciences, McGill University, Montreal, Canada; Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, Canada
| | - Alexander Nyström
- Department of Dermatology, Medical Faculty, Medical Center - University of Freiburg, Freiburg, Germany.
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6
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Gao F, Yang X, Song W. Bioinspired Supramolecular Hydrogel from Design to Applications. SMALL METHODS 2024; 8:e2300753. [PMID: 37599261 DOI: 10.1002/smtd.202300753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Indexed: 08/22/2023]
Abstract
Nature offers a wealth of opportunities to solve scientific and technological issues based on its unique structures and function. The dynamic non-covalent interaction is considered to be the main base of living functions of creatures including humans, animals, and plants. Supramolecular hydrogels formed by non-covalent bonding interactions has become a unique platform for constructing promising materials for medicine, energy, electronic, and biological substitute. In this review, the self-assemble principle of supramolecular hydrogels is summarized. Next, the stimulation of external environment that triggers the assembly or disassembly of supramolecular hydrogels are recapitulated, including temperature, mechanics, light, pH, ions, etc. The main applications of bioinspired supramolecular hydrogels in terms of bionic objects including humans, animals, and plants are also described. Although so many efforts are done for revealing the synergized mechanism of the function and non-covalent interactions on the supramolecular hydrogel, the complexity and variability between stimulus and non-covalent bonding in the supramolecular system still require impeccable theories. As an outlook, the bioinspired supramolecular hydrogel is just beginning to exhibit its great potential in human life, offering significant opportunities in drug delivery and screening, implantable devices and substitutions, tissue engineering, micro-fluidic devices, and biosensors.
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Affiliation(s)
- Feng Gao
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Xuhao Yang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Wenlong Song
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
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7
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Zhang L, Li Y, Kuhn JH, Zhang K, Song Q, Liu F. Polyubiquitylated rice stripe virus NS3 translocates to the nucleus to promote cytosolic virus replication via miRNA-induced fibrillin 2 upregulation. PLoS Pathog 2024; 20:e1012112. [PMID: 38507423 PMCID: PMC10984529 DOI: 10.1371/journal.ppat.1012112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 04/01/2024] [Accepted: 03/11/2024] [Indexed: 03/22/2024] Open
Abstract
Viruses are encapsidated mobile genetic elements that rely on host cells for replication. Several cytoplasmic RNA viruses synthesize proteins and/or RNAs that translocate to infected cell nuclei. However, the underlying mechanisms and role(s) of cytoplasmic-nuclear trafficking are unclear. We demonstrate that infection of small brown planthoppers with rice stripe virus (RSV), a negarnaviricot RNA virus, results in K63-linked polyubiquitylation of RSV's nonstructural protein 3 (NS3) at residue K127 by the RING ubiquitin ligase (E3) LsRING. In turn, ubiquitylation leads to NS3 trafficking from the cytoplasm to the nucleus, where NS3 regulates primary miRNA pri-miR-92 processing through manipulation of the microprocessor complex, resulting in accumulation of upregulated miRNA lst-miR-92. We show that lst-miR-92 regulates the expression of fibrillin 2, an extracellular matrix protein, thereby increasing RSV loads. Our results highlight the manipulation of intranuclear, cytoplasmic, and extracellular components by an RNA virus to promote its own replication in an insect vector.
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Affiliation(s)
- Lu Zhang
- College of Plant Protection; Yángzhōu University; Yángzhōu, Jiāngsū Province; China
| | - Yao Li
- College of Plant Protection; Yángzhōu University; Yángzhōu, Jiāngsū Province; China
| | - Jens H. Kuhn
- Integrated Research Facility at Fort Detrick; National Institute of Allergy and Infectious Diseases, National Institutes of Health, Fort Detrick; Frederick, Maryland; United States of America
| | - Kun Zhang
- College of Plant Protection; Yángzhōu University; Yángzhōu, Jiāngsū Province; China
| | - Qisheng Song
- Division of Plant Science and Technology; College of Agriculture; Food and Natural Resources; University of Missouri; Columbia, Missouri; United States of America
| | - Fang Liu
- College of Plant Protection; Yángzhōu University; Yángzhōu, Jiāngsū Province; China
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Chen R, Cheng Y, Zhang Y, Chen J. Identification and expression analysis of Oxfibrillin gene involved in the regeneration process of Ophryotrocha xiamen (Annelida, Dorcilleidae). DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2024; 151:105102. [PMID: 37995918 DOI: 10.1016/j.dci.2023.105102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 11/10/2023] [Accepted: 11/17/2023] [Indexed: 11/25/2023]
Abstract
Regeneration of lost body parts is a widespread phenomenon across annelids. However, the molecular inducers of the cell sources for this reparative morphogenesis have not been identified. We have identified a regeneration-related gene Oxfibrillin from the transcriptome analysis of a polychaeta, Ophryotrocha xiamen, which is found to be a well-suited model to study the mechanisms of regeneration. Fibrillins are large glycoproteins that assemble to form the microfibrils and regulate growth factors or other transfer processes. Here, we obtained the 31,274 bp genomic DNA sequences of Oxfibrillin. The coding sequence length was 5784 bp encoding 1927 amino acids with a VWD domain, EGF/cb-EGF domains, a TR domain, and a transmembrane domain. Oxfibrillin was positioned within the subgroup of invertebrates and showed low scores for homology to mammalian fibrillin. In gene expression analysis, Oxfibrillin genes were constantly upregulated during the early regeneration process and then remained stable until the formation of the complete tail which indicated that it might be a vital factor to affect posterior regeneration process. Therefore, the Oxfibrillin of O. xiamen might play important roles in the regeneration process.
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Affiliation(s)
- Ruanni Chen
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou, 350108, China
| | - Yunying Cheng
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou, 350108, China
| | - Yuting Zhang
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou, 350108, China
| | - Jianming Chen
- Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography, Minjiang University, Fuzhou, 350108, China.
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9
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Li L, Huang J, Liu Y. The extracellular matrix glycoprotein fibrillin-1 in health and disease. Front Cell Dev Biol 2024; 11:1302285. [PMID: 38269088 PMCID: PMC10806136 DOI: 10.3389/fcell.2023.1302285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 12/19/2023] [Indexed: 01/26/2024] Open
Abstract
Fibrillin-1 (FBN1) is a large, cysteine-rich, calcium binding extracellular matrix glycoprotein encoded by FBN1 gene. It serves as a structural component of microfibrils and provides force-bearing mechanical support in elastic and nonelastic connective tissue. As such, mutations in the FBN1 gene can cause a wide variety of genetic diseases such as Marfan syndrome, an autosomal dominant disorder characterized by ocular, skeletal and cardiovascular abnormalities. FBN1 also interacts with numerous microfibril-associated proteins, growth factors and cell membrane receptors, thereby mediating a wide range of biological processes such as cell survival, proliferation, migration and differentiation. Dysregulation of FBN1 is involved in the pathogenesis of many human diseases, such as cancers, cardiovascular disorders and kidney diseases. Paradoxically, both depletion and overexpression of FBN1 upregulate the bioavailability and signal transduction of TGF-β via distinct mechanisms in different settings. In this review, we summarize the structure and expression of FBN1 and present our current understanding of the functional role of FBN1 in various human diseases. This knowledge will allow to develop better strategies for therapeutic intervention of FBN1 related diseases.
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Affiliation(s)
- Li Li
- State Key Laboratory of Organ Failure Research, Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- National Clinical Research Center of Kidney Disease, Guangdong Provincial Institute of Nephrology, Guangzhou, China
| | - Junxin Huang
- State Key Laboratory of Organ Failure Research, Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- National Clinical Research Center of Kidney Disease, Guangdong Provincial Institute of Nephrology, Guangzhou, China
| | - Youhua Liu
- State Key Laboratory of Organ Failure Research, Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- National Clinical Research Center of Kidney Disease, Guangdong Provincial Institute of Nephrology, Guangzhou, China
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10
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Seeburun S, Wu S, Hemani D, Pham L, Ju D, Xie Y, Kata P, Li L. Insights into elastic fiber fragmentation: Mechanisms and treatment of aortic aneurysm in Marfan syndrome. Vascul Pharmacol 2023; 153:107215. [PMID: 37640090 PMCID: PMC10872825 DOI: 10.1016/j.vph.2023.107215] [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: 08/06/2023] [Accepted: 08/25/2023] [Indexed: 08/31/2023]
Abstract
Marfan syndrome (MFS) is an autosomal dominant connective tissue disorder caused by mutations in fibrillin 1 (FBN1) gene. These mutations result in defects in the skeletal, ocular, and cardiovascular systems. Aortic aneurysm is the leading cause of premature mortality in untreated MFS patients. Elastic fiber fragmentation in the aortic vessel wall is a hallmark of MFS-associated aortic aneurysms. FBN1 mutations result in FBN1 fragments that also contribute to elastic fiber fragmentation. Although recent research has advanced our understanding of MFS, the contribution of elastic fiber fragmentation to the pathogenesis of aneurysm formation remains poorly understood. This review provides a comprehensive overview of the molecular mechanisms of elastic fiber fragmentation and its role in the pathogenesis of aortic aneurysm progression. Increased comprehension of elastic fragmentation has significant clinical implications for developing targeted interventions to block aneurysm progression, which would benefit not only individuals with Marfan syndrome but also other patients with aneurysms. Moreover, this review highlights an overlooked connection between inhibiting aneurysm and the restoration of elastic fibers in the vessel wall with various aneurysm inhibitors, including drugs and chemicals. Investigating the underlying molecular mechanisms could uncover innovative therapeutic strategies to inhibit elastin fragmentation and prevent the progression of aneurysms.
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Affiliation(s)
- Sheilabi Seeburun
- Department of Internal Medicine, Wayne State University, Detroit MI, USA
| | - Shichao Wu
- Department of Internal Medicine, Wayne State University, Detroit MI, USA
| | - Darshi Hemani
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit MI, USA
| | - Lucynda Pham
- Department of Internal Medicine, Wayne State University, Detroit MI, USA
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit MI, USA
| | - Donghong Ju
- Department of Internal Medicine, Wayne State University, Detroit MI, USA
- Department of Oncology, Wayne State University, Detroit MI, USA
| | - Youming Xie
- Department of Oncology, Wayne State University, Detroit MI, USA
| | - Priyaranjan Kata
- Department of Internal Medicine, Wayne State University, Detroit MI, USA
| | - Li Li
- Department of Internal Medicine, Wayne State University, Detroit MI, USA
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit MI, USA
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11
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Andreas MN, Boehm AK, Tang P, Moosburner S, Klein O, Daneshgar A, Gaßner JMGV, Raschzok N, Haderer L, Wulsten D, Rückert JC, Spuler S, Pratschke J, Sauer IM, Hillebrandt KH. Development and systematic evaluation of decellularization protocols in different application models for diaphragmatic tissue engineering. BIOMATERIALS ADVANCES 2023; 153:213493. [PMID: 37418932 DOI: 10.1016/j.bioadv.2023.213493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 05/27/2023] [Accepted: 05/31/2023] [Indexed: 07/09/2023]
Abstract
BACKGROUND Tissue engineered bioscaffolds based on decellularized composites have gained increasing interest for treatment of various diaphragmatic impairments, including muscular atrophies and diaphragmatic hernias. Detergent-enzymatic treatment (DET) constitutes a standard strategy for diaphragmatic decellularization. However, there is scarce data on comparing DET protocols with different substances in distinct application models in their ability to maximize cellular removal while minimizing extracellular matrix (ECM) damage. METHODS We decellularized diaphragms of male Sprague Dawley rats with 1 % or 0.1 % sodium dodecyl sulfate (SDS) and 4 % sodium deoxycholate (SDC) by orbital shaking (OS) or retrograde perfusion (RP) through the vena cava. We evaluated decellularized diaphragmatic samples by (1) quantitative analysis including DNA quantification and biomechanical testing, (2) qualitative and semiquantitative analysis by proteomics, as well as (3) qualitative assessment with macroscopic and microscopic evaluation by histological staining, immunohistochemistry and scanning electron microscopy. RESULTS All protocols produced decellularized matrices with micro- and ultramorphologically intact architecture and adequate biomechanical performance with gradual differences. The proteomic profile of decellularized matrices contained a broad range of primal core and ECM-associated proteins similar to native muscle. While no outstanding preference for one singular protocol was determinable, SDS-treated samples showed slightly beneficial properties in comparison to SDC-processed counterparts. Both application modalities proved suitable for DET. CONCLUSION DET with SDS or SDC via orbital shaking or retrograde perfusion constitute suitable methods to produce adequately decellularized matrices with characteristically preserved proteomic composition. Exposing compositional and functional specifics of variously treated grafts may enable establishing an ideal processing strategy to sustain valuable tissue characteristics and optimize consecutive recellularization. This aims to design an optimal bioscaffold for future transplantation in quantitative and qualitative diaphragmatic defects.
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Affiliation(s)
- Marco N Andreas
- Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Surgery, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Agnes K Boehm
- Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Surgery, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Peter Tang
- Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Surgery, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Simon Moosburner
- Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Surgery, Augustenburger Platz 1, 13353 Berlin, Germany; Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Oliver Klein
- Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Assal Daneshgar
- Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Surgery, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Joseph M G V Gaßner
- Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Surgery, Augustenburger Platz 1, 13353 Berlin, Germany; Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Nathanael Raschzok
- Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Surgery, Augustenburger Platz 1, 13353 Berlin, Germany; Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Luna Haderer
- Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Surgery, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Dag Wulsten
- Julius-Wolff-Institut für Biomechanik und Muskuloskeletale Regeneration, Augustenburgerplatz 1, 13353 Berlin, Germany
| | - Jens-Carsten Rückert
- Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Surgery, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Simone Spuler
- Max-Delbrück-Centrum für Molekulare Medizin in der Helmholtz-Gemeinschaft, Robert-Rössle-Straße 10, 13125 Berlin-Buch, Germany
| | - Johann Pratschke
- Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Surgery, Augustenburger Platz 1, 13353 Berlin, Germany; Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt Universität zu Berlin, Cluster of Excellence Matters of Activity. Image Space Material funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy - EXC 2025, Germany
| | - Igor M Sauer
- Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Surgery, Augustenburger Platz 1, 13353 Berlin, Germany; Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt Universität zu Berlin, Cluster of Excellence Matters of Activity. Image Space Material funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy - EXC 2025, Germany.
| | - Karl H Hillebrandt
- Charité - Universitätsmedizin Berlin, Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Surgery, Augustenburger Platz 1, 13353 Berlin, Germany; Berlin Institute of Health at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
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12
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Redhead C, Taye N, Hubmacher D. En route towards a personalized medicine approach: Innovative therapeutic modalities for connective tissue disorders. Matrix Biol 2023; 122:46-54. [PMID: 37657665 PMCID: PMC10529529 DOI: 10.1016/j.matbio.2023.08.005] [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: 06/28/2023] [Revised: 08/25/2023] [Accepted: 08/27/2023] [Indexed: 09/03/2023]
Abstract
Connective tissue disorders can be caused by pathogenic variants (mutations) in genes encoding extracellular matrix (ECM) proteins. Such disorders typically manifest during development or postnatal growth and result in significant morbidity and mortality. The development of curative treatments for connective tissue disorders is hampered in part by the inability of many mature connective tissues to efficiently regenerate. To be most effective, therapeutic strategies designed to preserve or restore tissue function will likely need to be initiated during phases of significant endogenous connective tissue remodeling and organ sculpting postnatally and directly target the underlying ECM protein mutations. With recent advances in whole exome sequencing, in-vitro and in-vivo disease modeling, and the development of mutation-specific molecular therapeutic modalities, it is now feasible to directly correct disease-causing mutations underlying connective tissue disorders and ameliorate their pathogenic consequences. These technological advances may lead to potentially curative personalized medicine approaches for connective tissue disorders that have previously been considered incurable. In this review, we highlight innovative therapeutic modalities including gene replacement, exon skipping, DNA/mRNA editing, and pharmacological approaches that were used to preserve or restore tissue function in the context of connective tissue disorders. Inherent to a successful application of these approaches is the need to deepen the understanding of mechanisms that regulate ECM formation and homeostasis, and to decipher how individual mutations in ECM proteins compromise ECM and connective tissue development and function.
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Affiliation(s)
- Charlene Redhead
- Orthopedic Research Laboratories, Leni & Peter W. May Department of Orthopaedics, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Nandaraj Taye
- Orthopedic Research Laboratories, Leni & Peter W. May Department of Orthopaedics, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Dirk Hubmacher
- Orthopedic Research Laboratories, Leni & Peter W. May Department of Orthopaedics, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.
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13
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Urciuolo F, Imparato G, Netti PA. In vitro strategies for mimicking dynamic cell-ECM reciprocity in 3D culture models. Front Bioeng Biotechnol 2023; 11:1197075. [PMID: 37434756 PMCID: PMC10330728 DOI: 10.3389/fbioe.2023.1197075] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 06/01/2023] [Indexed: 07/13/2023] Open
Abstract
The extracellular microenvironment regulates cell decisions through the accurate presentation at the cell surface of a complex array of biochemical and biophysical signals that are mediated by the structure and composition of the extracellular matrix (ECM). On the one hand, the cells actively remodel the ECM, which on the other hand affects cell functions. This cell-ECM dynamic reciprocity is central in regulating and controlling morphogenetic and histogenetic processes. Misregulation within the extracellular space can cause aberrant bidirectional interactions between cells and ECM, resulting in dysfunctional tissues and pathological states. Therefore, tissue engineering approaches, aiming at reproducing organs and tissues in vitro, should realistically recapitulate the native cell-microenvironment crosstalk that is central for the correct functionality of tissue-engineered constructs. In this review, we will describe the most updated bioengineering approaches to recapitulate the native cell microenvironment and reproduce functional tissues and organs in vitro. We have highlighted the limitations of the use of exogenous scaffolds in recapitulating the regulatory/instructive and signal repository role of the native cell microenvironment. By contrast, strategies to reproduce human tissues and organs by inducing cells to synthetize their own ECM acting as a provisional scaffold to control and guide further tissue development and maturation hold the potential to allow the engineering of fully functional histologically competent three-dimensional (3D) tissues.
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Affiliation(s)
- F. Urciuolo
- Interdisciplinary Research Centre on Biomaterials (CRIB), University of Naples Federico II, Naples, Italy
- Department of Chemical Materials and Industrial Production (DICMAPI), University of Naples Federico II, Naples, Italy
- Center for Advanced Biomaterials for HealthCare@CRIB, Istituto Italiano di Tecnologia, Naples, Italy
| | - G. Imparato
- Center for Advanced Biomaterials for HealthCare@CRIB, Istituto Italiano di Tecnologia, Naples, Italy
| | - P. A. Netti
- Interdisciplinary Research Centre on Biomaterials (CRIB), University of Naples Federico II, Naples, Italy
- Department of Chemical Materials and Industrial Production (DICMAPI), University of Naples Federico II, Naples, Italy
- Center for Advanced Biomaterials for HealthCare@CRIB, Istituto Italiano di Tecnologia, Naples, Italy
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14
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Alonso F, Dong Y, Li L, Jahjah T, Dupuy JW, Fremaux I, Reinhardt DP, Génot E. Fibrillin-1 regulates endothelial sprouting during angiogenesis. Proc Natl Acad Sci U S A 2023; 120:e2221742120. [PMID: 37252964 PMCID: PMC10265973 DOI: 10.1073/pnas.2221742120] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 04/20/2023] [Indexed: 06/01/2023] Open
Abstract
Fibrillin-1 is an extracellular matrix protein that assembles into microfibrils which provide critical functions in large blood vessels and other tissues. Mutations in the fibrillin-1 gene are associated with cardiovascular, ocular, and skeletal abnormalities in Marfan syndrome. Here, we reveal that fibrillin-1 is critical for angiogenesis which is compromised by a typical Marfan mutation. In the mouse retina vascularization model, fibrillin-1 is present in the extracellular matrix at the angiogenic front where it colocalizes with microfibril-associated glycoprotein-1, MAGP1. In Fbn1C1041G/+ mice, a model of Marfan syndrome, MAGP1 deposition is reduced, endothelial sprouting is decreased, and tip cell identity is impaired. Cell culture experiments confirmed that fibrillin-1 deficiency alters vascular endothelial growth factor-A/Notch and Smad signaling which regulate the acquisition of endothelial tip cell/stalk cell phenotypes, and we showed that modulation of MAGP1 expression impacts these pathways. Supplying the growing vasculature of Fbn1C1041G/+ mice with a recombinant C-terminal fragment of fibrillin-1 corrects all defects. Mass spectrometry analyses showed that the fibrillin-1 fragment alters the expression of various proteins including ADAMTS1, a tip cell metalloprotease and matrix-modifying enzyme. Our data establish that fibrillin-1 is a dynamic signaling platform in the regulation of cell specification and matrix remodeling at the angiogenic front and that mutant fibrillin-1-induced defects can be rescued pharmacologically using a C-terminal fragment of the protein. These findings, identify fibrillin-1, MAGP1, and ADAMTS1 in the regulation of endothelial sprouting, and contribute to our understanding of how angiogenesis is regulated. This knowledge may have critical implications for people with Marfan syndrome.
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Affiliation(s)
- Florian Alonso
- Université de BordeauxF-33000Bordeaux, France
- INSERM U1026, BioTisF-33000Bordeaux, France
| | - Yuechao Dong
- Université de BordeauxF-33000Bordeaux, France
- INSERM U1026, BioTisF-33000Bordeaux, France
| | - Ling Li
- Faculty of Medicine and Health Sciences, McGill University, Montreal, QCH3A 0C7, Canada
| | - Tiya Jahjah
- Université de BordeauxF-33000Bordeaux, France
- INSERM U1026, BioTisF-33000Bordeaux, France
| | | | - Isabelle Fremaux
- Université de BordeauxF-33000Bordeaux, France
- INSERM U1026, BioTisF-33000Bordeaux, France
| | - Dieter P. Reinhardt
- Faculty of Medicine and Health Sciences, McGill University, Montreal, QCH3A 0C7, Canada
- Faculty of Dental Medicine and Oral Health Sciences, McGill University, Montreal, QCH3A 0C7, Canada
| | - Elisabeth Génot
- Université de BordeauxF-33000Bordeaux, France
- INSERM U1026, BioTisF-33000Bordeaux, France
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15
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Caulk AW, Chatterjee M, Barr SJ, Contini EM. Mechanobiological considerations in colorectal stapling: Implications for technology development. Surg Open Sci 2023; 13:54-65. [PMID: 37159635 PMCID: PMC10163679 DOI: 10.1016/j.sopen.2023.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 04/07/2023] [Accepted: 04/08/2023] [Indexed: 05/11/2023] Open
Abstract
Technological advancements in minimally invasive surgery have led to significant improvements in patient outcomes. One such technology is surgical stapling, which has evolved into a key component of many operating rooms by facilitating ease and efficacy in resection and repair of diseased or otherwise compromised tissue. Despite such advancements, adverse post-operative outcomes such as anastomotic leak remain a persistent problem in surgical stapling and its correlates (i.e., hand-sewing), most notably in low colorectal or coloanal procedures. Many factors may drive anastomotic leaks, including tissue perfusion, microbiome composition, and patient factors such as pre-existing disease. Surgical intervention induces complex acute and chronic changes to the mechanical environment of the tissue; however, roles of mechanical forces in post-operative healing remain poorly characterized. It is well known that cells sense and respond to their local mechanical environment and that dysfunction of this "mechanosensing" phenomenon contributes to a myriad of diseases. Mechanosensing has been investigated in wound healing contexts such as dermal incisional and excisional wounds and development of pressure ulcers; however, reports investigating roles of mechanical forces in adverse post-operative gastrointestinal wound healing are lacking. To understand this relationship well, it is critical to understand: 1) the intraoperative material responses of tissue to surgical intervention, and 2) the post-operative mechanobiological response of the tissue to surgically imposed forces. In this review, we summarize the state of the field in each of these contexts while highlighting areas of opportunity for discovery and innovation which can positively impact patient outcomes in minimally invasive surgery.
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Affiliation(s)
- Alexander W. Caulk
- Corresponding author at: 60 Middletown Ave., North Haven, CT 06473, USA.
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16
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Șulea CM, Mártonfalvi Z, Csányi C, Haluszka D, Pólos M, Ágg B, Stengl R, Benke K, Szabolcs Z, Kellermayer MSZ. Nanoscale Structural Comparison of Fibrillin-1 Microfibrils Isolated from Marfan and Non-Marfan Syndrome Human Aorta. Int J Mol Sci 2023; 24:ijms24087561. [PMID: 37108724 PMCID: PMC10145871 DOI: 10.3390/ijms24087561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 04/18/2023] [Accepted: 04/18/2023] [Indexed: 04/29/2023] Open
Abstract
Fibrillin-1 microfibrils are essential elements of the extracellular matrix serving as a scaffold for the deposition of elastin and endowing connective tissues with tensile strength and elasticity. Mutations in the fibrillin-1 gene (FBN1) are linked to Marfan syndrome (MFS), a systemic connective tissue disorder that, besides other heterogeneous symptoms, usually manifests in life-threatening aortic complications. The aortic involvement may be explained by a dysregulation of microfibrillar function and, conceivably, alterations in the microfibrils' supramolecular structure. Here, we present a nanoscale structural characterization of fibrillin-1 microfibrils isolated from two human aortic samples with different FBN1 gene mutations by using atomic force microscopy, and their comparison with microfibrillar assemblies purified from four non-MFS human aortic samples. Fibrillin-1 microfibrils displayed a characteristic "beads-on-a-string" appearance. The microfibrillar assemblies were investigated for bead geometry (height, length, and width), interbead region height, and periodicity. MFS fibrillin-1 microfibrils had a slightly higher mean bead height, but the bead length and width, as well as the interbead height, were significantly smaller in the MFS group. The mean periodicity varied around 50-52 nm among samples. The data suggest an overall thinner and presumably more frail structure for the MFS fibrillin-1 microfibrils, which may play a role in the development of MFS-related aortic symptomatology.
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Affiliation(s)
- Cristina M Șulea
- Department of Biophysics and Radiation Biology, Semmelweis University, 1094 Budapest, Hungary
- Heart and Vascular Center, Semmelweis University, 1122 Budapest, Hungary
- Hungarian Marfan Foundation, 1122 Budapest, Hungary
| | - Zsolt Mártonfalvi
- Department of Biophysics and Radiation Biology, Semmelweis University, 1094 Budapest, Hungary
| | - Csilla Csányi
- Department of Biophysics and Radiation Biology, Semmelweis University, 1094 Budapest, Hungary
| | - Dóra Haluszka
- Department of Biophysics and Radiation Biology, Semmelweis University, 1094 Budapest, Hungary
| | - Miklós Pólos
- Heart and Vascular Center, Semmelweis University, 1122 Budapest, Hungary
- Hungarian Marfan Foundation, 1122 Budapest, Hungary
| | - Bence Ágg
- Heart and Vascular Center, Semmelweis University, 1122 Budapest, Hungary
- Hungarian Marfan Foundation, 1122 Budapest, Hungary
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, 1089 Budapest, Hungary
| | - Roland Stengl
- Heart and Vascular Center, Semmelweis University, 1122 Budapest, Hungary
- Hungarian Marfan Foundation, 1122 Budapest, Hungary
| | - Kálmán Benke
- Heart and Vascular Center, Semmelweis University, 1122 Budapest, Hungary
- Hungarian Marfan Foundation, 1122 Budapest, Hungary
- Department of Cardiac Surgery, University Hospital Halle (Saale), 06120 Halle (Saale), Germany
| | - Zoltán Szabolcs
- Heart and Vascular Center, Semmelweis University, 1122 Budapest, Hungary
- Hungarian Marfan Foundation, 1122 Budapest, Hungary
| | - Miklós S Z Kellermayer
- Department of Biophysics and Radiation Biology, Semmelweis University, 1094 Budapest, Hungary
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17
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Godwin ARF, Dajani R, Zhang X, Thomson J, Holmes DF, Adamo CS, Sengle G, Sherratt MJ, Roseman AM, Baldock C. Fibrillin microfibril structure identifies long-range effects of inherited pathogenic mutations affecting a key regulatory latent TGFβ-binding site. Nat Struct Mol Biol 2023; 30:608-618. [PMID: 37081316 DOI: 10.1038/s41594-023-00950-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 02/28/2023] [Indexed: 04/22/2023]
Abstract
Genetic mutations in fibrillin microfibrils cause serious inherited diseases, such as Marfan syndrome and Weill-Marchesani syndrome (WMS). These diseases typically show major dysregulation of tissue development and growth, particularly in skeletal long bones, but links between the mutations and the diseases are unknown. Here we describe a detailed structural analysis of native fibrillin microfibrils from mammalian tissue by cryogenic electron microscopy. The major bead region showed pseudo eightfold symmetry where the amino and carboxy termini reside. On the basis of this structure, we show that a WMS deletion mutation leads to the induction of a structural rearrangement that blocks interaction with latent TGFβ-binding protein-1 at a remote site. Separate deletion of this binding site resulted in the assembly of shorter fibrillin microfibrils with structural alterations. The integrin αvβ3-binding site was also mapped onto the microfibril structure. These results establish that in complex extracellular assemblies, such as fibrillin microfibrils, mutations may have long-range structural consequences leading to the disruption of growth factor signaling and the development of disease.
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Affiliation(s)
- Alan R F Godwin
- Wellcome Trust Centre for Cell-Matrix Research, Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Rana Dajani
- Wellcome Trust Centre for Cell-Matrix Research, Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Xinyang Zhang
- Wellcome Trust Centre for Cell-Matrix Research, Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Jennifer Thomson
- Wellcome Trust Centre for Cell-Matrix Research, Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - David F Holmes
- Wellcome Trust Centre for Cell-Matrix Research, Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Christin S Adamo
- Center for Biochemistry, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
- Department of Pediatrics and Adolescent Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Gerhard Sengle
- Center for Biochemistry, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
- Department of Pediatrics and Adolescent Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
- Center for Molecular Medicine Cologne, University of Cologne, Cologne, Germany
- Cologne Center for Musculoskeletal Biomechanics, Cologne, Germany
| | - Michael J Sherratt
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Alan M Roseman
- Division of Molecular and Cellular Function, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Clair Baldock
- Wellcome Trust Centre for Cell-Matrix Research, Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK.
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18
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Vorstandlechner V, Copic D, Klas K, Direder M, Golabi B, Radtke C, Ankersmit HJ, Mildner M. The Secretome of Irradiated Peripheral Mononuclear Cells Attenuates Hypertrophic Skin Scarring. Pharmaceutics 2023; 15:pharmaceutics15041065. [PMID: 37111549 PMCID: PMC10143262 DOI: 10.3390/pharmaceutics15041065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 03/15/2023] [Accepted: 03/21/2023] [Indexed: 03/29/2023] Open
Abstract
Hypertrophic scars can cause pain, movement restrictions, and reduction in the quality of life. Despite numerous options to treat hypertrophic scarring, efficient therapies are still scarce, and cellular mechanisms are not well understood. Factors secreted by peripheral blood mononuclear cells (PBMCsec) have been previously described for their beneficial effects on tissue regeneration. In this study, we investigated the effects of PBMCsec on skin scarring in mouse models and human scar explant cultures at single-cell resolution (scRNAseq). Mouse wounds and scars, and human mature scars were treated with PBMCsec intradermally and topically. The topical and intradermal application of PBMCsec regulated the expression of various genes involved in pro-fibrotic processes and tissue remodeling. We identified elastin as a common linchpin of anti-fibrotic action in both mouse and human scars. In vitro, we found that PBMCsec prevents TGFβ-mediated myofibroblast differentiation and attenuates abundant elastin expression with non-canonical signaling inhibition. Furthermore, the TGFβ-induced breakdown of elastic fibers was strongly inhibited by the addition of PBMCsec. In conclusion, we conducted an extensive study with multiple experimental approaches and ample scRNAseq data demonstrating the anti-fibrotic effect of PBMCsec on cutaneous scars in mouse and human experimental settings. These findings point at PBMCsec as a novel therapeutic option to treat skin scarring.
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Affiliation(s)
- Vera Vorstandlechner
- Laboratory for Cardiac and Thoracic Diagnosis, Regeneration and Applied Immunology, Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria
- Aposcience AG, 1200 Vienna, Austria
- Department of Plastic and Reconstructive Surgery, Medical University of Vienna, 1090 Vienna, Austria
| | - Dragan Copic
- Laboratory for Cardiac and Thoracic Diagnosis, Regeneration and Applied Immunology, Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria
- Aposcience AG, 1200 Vienna, Austria
- Department of Medicine III, Division of Nephrology and Dialysis, Medical University of Vienna, 1090 Vienna, Austria
| | - Katharina Klas
- Laboratory for Cardiac and Thoracic Diagnosis, Regeneration and Applied Immunology, Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria
- Aposcience AG, 1200 Vienna, Austria
| | - Martin Direder
- Laboratory for Cardiac and Thoracic Diagnosis, Regeneration and Applied Immunology, Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria
- Aposcience AG, 1200 Vienna, Austria
- Department of Orthopedics and Trauma-Surgery, Medical University of Vienna, 1090 Vienna, Austria
| | - Bahar Golabi
- Department of Dermatology, Medical University of Vienna, 1090 Vienna, Austria
| | - Christine Radtke
- Department of Plastic and Reconstructive Surgery, Medical University of Vienna, 1090 Vienna, Austria
| | - Hendrik J. Ankersmit
- Laboratory for Cardiac and Thoracic Diagnosis, Regeneration and Applied Immunology, Department of Thoracic Surgery, Medical University of Vienna, 1090 Vienna, Austria
- Aposcience AG, 1200 Vienna, Austria
| | - Michael Mildner
- Department of Dermatology, Medical University of Vienna, 1090 Vienna, Austria
- Correspondence:
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19
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Szekely T, Wichmann B, Maros ME, Csizmadia A, Bodor C, Timar B, Krenacs T. Myelofibrosis progression grading based on type I and type III collagen and fibrillin 1 expression boosted by whole slide image analysis. Histopathology 2023; 82:622-632. [PMID: 36416374 PMCID: PMC10107930 DOI: 10.1111/his.14846] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 10/10/2022] [Accepted: 11/19/2022] [Indexed: 11/24/2022]
Abstract
AIMS The progression of primary myelofibrosis is characterised by ongoing extracellular matrix deposition graded based on 'reticulin' and 'collagen' fibrosis, as revealed by Gomori's silver impregnation. Here we studied the expression of the major extracellular matrix proteins of fibrosis in relation to diagnostic silver grading supported by image analysis. METHODS AND RESULTS By using automated immunohistochemistry, in this study we demonstrate that the expression of both types I and III collagens and fibrillin 1 by bone marrow stromal cells can reveal the extracellular matrix scaffolding in line with myelofibrosis progression as classified by silver grading. 'Reticulin' fibrosis indicated by type III collagen expression and 'collagen' fibrosis featured by type I collagen expression were parallel, rather than sequential, events. This is line with the proposed role of type III collagen in regulating type I collagen fibrillogenesis. The uniformly strong fibrillin 1 immune signals offered the best inter-rater agreements and the highest statistical correlations with silver grading of the three markers, which was robustly confirmed by automated whole slide digital image analysis using a machine learning-based algorithm. The progressive up-regulation of fibrillin 1 during myelofibrosis may result from a negative feedback loop as fibrillin microfibrils sequester TGF-β, the major promoter of fibrosis. This can also reduce TGF-β-induced RANKL levels, which would stimulate osteoclastogenesis and thus can support osteosclerosis in advanced myelofibrosis. CONCLUSIONS Through the in-situ detection of these extracellular matrix proteins, our results verify the molecular pathobiology of fibrosis during myelofibrosis progression. In particular, fibrillin 1 immunohistochemistry, with or without image analysis, can complement diagnostic silver grading at decent cell morphology.
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Affiliation(s)
- Tamas Szekely
- Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - Barna Wichmann
- Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
| | - Mate E Maros
- Department of Biomedical Informatics at the Center for Preventive Medicine and Digital Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany.,Department of Neuroradiology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Annamaria Csizmadia
- Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary.,3DHISTECH Ltd., Budapest, Hungary
| | - Csaba Bodor
- Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary.,HCEMM-SE Molecular Oncohematology Research Group, Budapest, Hungary
| | - Botond Timar
- Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary.,HCEMM-SE Molecular Oncohematology Research Group, Budapest, Hungary
| | - Tibor Krenacs
- Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary
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20
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Hume RD, Kanagalingam S, Deshmukh T, Chen S, Mithieux SM, Rashid FN, Roohani I, Lu J, Doan T, Graham D, Clayton ZE, Slaughter E, Kizana E, Stempien-Otero AS, Brown P, Thomas L, Weiss AS, Chong JJ. Tropoelastin Improves Post-Infarct Cardiac Function. Circ Res 2023; 132:72-86. [PMID: 36453283 PMCID: PMC9829044 DOI: 10.1161/circresaha.122.321123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
BACKGROUND Myocardial infarction (MI) is among the leading causes of death worldwide. Following MI, necrotic cardiomyocytes are replaced by a stiff collagen-rich scar. Compared to collagen, the extracellular matrix protein elastin has high elasticity and may have more favorable properties within the cardiac scar. We sought to improve post-MI healing by introducing tropoelastin, the soluble subunit of elastin, to alter scar mechanics early after MI. METHODS AND RESULTS We developed an ultrasound-guided direct intramyocardial injection method to administer tropoelastin directly into the left ventricular anterior wall of rats subjected to induced MI. Experimental groups included shams and infarcted rats injected with either PBS vehicle control or tropoelastin. Compared to vehicle treated controls, echocardiography assessments showed tropoelastin significantly improved left ventricular ejection fraction (64.7±4.4% versus 46.0±3.1% control) and reduced left ventricular dyssynchrony (11.4±3.5 ms versus 31.1±5.8 ms control) 28 days post-MI. Additionally, tropoelastin reduced post-MI scar size (8.9±1.5% versus 20.9±2.7% control) and increased scar elastin (22±5.8% versus 6.2±1.5% control) as determined by histological assessments. RNA sequencing (RNAseq) analyses of rat infarcts showed that tropoelastin injection increased genes associated with elastic fiber formation 7 days post-MI and reduced genes associated with immune response 11 days post-MI. To show translational relevance, we performed immunohistochemical analyses on human ischemic heart disease cardiac samples and showed an increase in tropoelastin within fibrotic areas. Using RNA-seq we also demonstrated the tropoelastin gene ELN is upregulated in human ischemic heart disease and during human cardiac fibroblast-myofibroblast differentiation. Furthermore, we showed by immunocytochemistry that human cardiac fibroblast synthesize increased elastin in direct response to tropoelastin treatment. CONCLUSIONS We demonstrate for the first time that purified human tropoelastin can significantly repair the infarcted heart in a rodent model of MI and that human cardiac fibroblast synthesize elastin. Since human cardiac fibroblasts are primarily responsible for post-MI scar synthesis, our findings suggest exciting future clinical translation options designed to therapeutically manipulate this synthesis.
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Affiliation(s)
- Robert D. Hume
- Centre for Heart Research, Westmead Institute for Medical Research, NSW, Australia (R.D.H., S.K., T.D., S.C., F.N.R., J.L., Z.E.C., E.K., J.J.H.C.).,Sydney Medical School, University of Sydney, NSW, Australia (R.D.H., T.D., F.R., Z.E.C., E.K., J.J.H.C.)
| | - Shaan Kanagalingam
- Centre for Heart Research, Westmead Institute for Medical Research, NSW, Australia (R.D.H., S.K., T.D., S.C., F.N.R., J.L., Z.E.C., E.K., J.J.H.C.)
| | - Tejas Deshmukh
- Centre for Heart Research, Westmead Institute for Medical Research, NSW, Australia (R.D.H., S.K., T.D., S.C., F.N.R., J.L., Z.E.C., E.K., J.J.H.C.).,Department of Cardiology, Westmead Hospital, NSW, Australia (T.D., J.L., E.K., P.B., L.T., J.J.H.C.).,Sydney Medical School, University of Sydney, NSW, Australia (R.D.H., T.D., F.R., Z.E.C., E.K., J.J.H.C.)
| | - Siqi Chen
- Centre for Heart Research, Westmead Institute for Medical Research, NSW, Australia (R.D.H., S.K., T.D., S.C., F.N.R., J.L., Z.E.C., E.K., J.J.H.C.)
| | - Suzanne M. Mithieux
- Charles Perkins Centre, University of Sydney, NSW, Australia (S.M.M., A.S.W.).,School of Life and Environmental Sciences, University of Sydney, NSW, Australia (S.M.M., A.S.W.)
| | - Fairooj N. Rashid
- Centre for Heart Research, Westmead Institute for Medical Research, NSW, Australia (R.D.H., S.K., T.D., S.C., F.N.R., J.L., Z.E.C., E.K., J.J.H.C.)
| | - Iman Roohani
- School of Biomedical Engineering, University of Sydney, NSW, Australia (I.R.).,School of Chemistry, University of New South Wales, Australia (I.R.)
| | - Juntang Lu
- Centre for Heart Research, Westmead Institute for Medical Research, NSW, Australia (R.D.H., S.K., T.D., S.C., F.N.R., J.L., Z.E.C., E.K., J.J.H.C.).,Department of Cardiology, Westmead Hospital, NSW, Australia (T.D., J.L., E.K., P.B., L.T., J.J.H.C.)
| | - Tram Doan
- Centre for Cancer Research, Westmead Institute for Medical Research, NSW, Australia (T.D.‚ D.G.)
| | - Dinny Graham
- Centre for Cancer Research, Westmead Institute for Medical Research, NSW, Australia (T.D.‚ D.G.).,Westmead Breast Cancer Institute, NSW, Australia (D.G.).,Westmead Clinical School, University of Sydney, NSW, Australia (D.G., L.T.)
| | - Zoe E. Clayton
- Centre for Heart Research, Westmead Institute for Medical Research, NSW, Australia (R.D.H., S.K., T.D., S.C., F.N.R., J.L., Z.E.C., E.K., J.J.H.C.).,Sydney Medical School, University of Sydney, NSW, Australia (R.D.H., T.D., F.R., Z.E.C., E.K., J.J.H.C.)
| | | | - Eddy Kizana
- Centre for Heart Research, Westmead Institute for Medical Research, NSW, Australia (R.D.H., S.K., T.D., S.C., F.N.R., J.L., Z.E.C., E.K., J.J.H.C.).,Department of Cardiology, Westmead Hospital, NSW, Australia (T.D., J.L., E.K., P.B., L.T., J.J.H.C.).,Sydney Medical School, University of Sydney, NSW, Australia (R.D.H., T.D., F.R., Z.E.C., E.K., J.J.H.C.)
| | - April S. Stempien-Otero
- Department of Medicine, Division of Cardiology, University of Washington School of Medicine, Seattle, WA (A.S.S.-O.)
| | - Paula Brown
- Department of Cardiology, Westmead Hospital, NSW, Australia (T.D., J.L., E.K., P.B., L.T., J.J.H.C.)
| | - Liza Thomas
- Department of Cardiology, Westmead Hospital, NSW, Australia (T.D., J.L., E.K., P.B., L.T., J.J.H.C.).,Westmead Clinical School, University of Sydney, NSW, Australia (D.G., L.T.)
| | | | - James J.H. Chong
- Centre for Heart Research, Westmead Institute for Medical Research, NSW, Australia (R.D.H., S.K., T.D., S.C., F.N.R., J.L., Z.E.C., E.K., J.J.H.C.).,Department of Cardiology, Westmead Hospital, NSW, Australia (T.D., J.L., E.K., P.B., L.T., J.J.H.C.).,Sydney Medical School, University of Sydney, NSW, Australia (R.D.H., T.D., F.R., Z.E.C., E.K., J.J.H.C.)
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21
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Salmasi MY, Alwis S, Cyclewala S, Jarral OA, Mohamed H, Mozalbat D, Nienaber CA, Athanasiou T, Morris-Rosendahl D. The genetic basis of thoracic aortic disease: The future of aneurysm classification? Hellenic J Cardiol 2023; 69:41-50. [PMID: 36202327 DOI: 10.1016/j.hjc.2022.09.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 09/24/2022] [Accepted: 09/25/2022] [Indexed: 11/04/2022] Open
Abstract
The expansion in the repertoire of genes linked to thoracic aortic aneurysms (TAA) has revolutionised our understanding of the disease process. The clinical benefits of such progress are numerous, particularly helping our understanding of non-syndromic hereditary causes of TAA (HTAAD) and further refinement in the subclassification of disease. Furthermore, the understanding of aortic biomechanics and mechanical homeostasis has been significantly informed by the discovery of deleterious mutations and their effect on aortic phenotype. The drawbacks in genetic testing in TAA lie with the inability to translate genotype to accurate prognostication in the risk of thoracic aortic dissection (TAD), which is a life-threatening condition. Under current guidelines, there are no metrics by which those at risk for dissection with normal aortic diameters may undergo preventive surgery. Future research lies with more advanced genetic diagnosis of HTAAD and investigation of the diverse pathways involved in its pathophysiology, which will i) serve to improve our understanding of the underlying mechanisms, ii) improve guidelines for treatment and iii) prevent complications for HTAAD and sporadic aortopathies.
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Affiliation(s)
| | | | | | - Omar A Jarral
- Department of Surgery and Cancer, Imperial College London, UK
| | - Heba Mohamed
- Royal Brompton and Harefield Foundation Trust, UK
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22
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Endothelial dysfunction in Marfan syndrome mice is restored by resveratrol. Sci Rep 2022; 12:22504. [PMID: 36577770 PMCID: PMC9797556 DOI: 10.1038/s41598-022-26662-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 12/19/2022] [Indexed: 12/29/2022] Open
Abstract
Patients with Marfan syndrome (MFS) develop thoracic aortic aneurysms as the aorta presents excessive elastin breaks, fibrosis, and vascular smooth muscle cell (vSMC) death due to mutations in the FBN1 gene. Despite elaborate vSMC to aortic endothelial cell (EC) signaling, the contribution of ECs to the development of aortic pathology remains largely unresolved. The aim of this study is to investigate the EC properties in Fbn1C1041G/+ MFS mice. Using en face immunofluorescence confocal microscopy, we showed that EC alignment with blood flow was reduced, EC roundness was increased, individual EC surface area was larger, and EC junctional linearity was decreased in aortae of Fbn1C1041G/+ MFS mice. This modified EC phenotype was most prominent in the ascending aorta and occurred before aortic dilatation. To reverse EC morphology, we performed treatment with resveratrol. This restored EC blood flow alignment, junctional linearity, phospho-eNOS expression, and improved the structural integrity of the internal elastic lamina of Fbn1C1041G/+ mice. In conclusion, these experiments identify the involvement of ECs and underlying internal elastic lamina in MFS aortic pathology, which could act as potential target for future MFS pharmacotherapies.
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23
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Genome Editing and Myocardial Development. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1396:53-73. [PMID: 36454459 DOI: 10.1007/978-981-19-5642-3_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
Congenital heart disease (CHD) has a strong genetic etiology, making it a likely candidate for therapeutic intervention using genetic editing. Complex genetics involving an orchestrated series of genetic events and over 400 genes are responsible for myocardial development. Cooperation is required from a vast series of genetic networks, and mutations in such can lead to CHD and cardiovascular abnormalities, affecting up to 1% of all live births. Genome editing technologies are becoming better studied and with time and improved logistics, CHD could be a prime therapeutic target. Syndromic, nonsyndromic, and cases of familial inheritance all involve identifiable causative mutations and thus have the potential for genome editing therapy. Mouse models are well-suited to study and predict clinical outcome. This review summarizes the anatomical and genetic timeline of myocardial development in both mice and humans, the potential of gene editing in typical CHD categories, as well as the use of mice thus far in reproducing models of human CHD and correcting the mutations that create them.
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24
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Fibrillin-1 Regulates Arteriole Integrity in the Retina. Biomolecules 2022; 12:biom12101330. [PMID: 36291539 PMCID: PMC9599515 DOI: 10.3390/biom12101330] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/16/2022] [Accepted: 09/17/2022] [Indexed: 11/26/2022] Open
Abstract
Fibrillin-1 is an extracellular matrix protein that assembles into microfibrils that provide critical functions in large blood vessels and other tissues. Mutations in the fibrillin-1 gene are associated with cardiovascular, ocular, and skeletal abnormalities in Marfan syndrome. Fibrillin-1 is a component of the wall of large arteries but has been poorly described in other vessels. We examined the microvasculature in the retina using wild type mice and two models of Marfan syndrome, Fbn1C1041G/+ and Fbn1mgR/mgR. In the mouse retina, fibrillin-1 was detected around arterioles, in close contact with the basement membrane, where it colocalized with MAGP1. Both a mutation in fibrillin-1 or fibrillin-1 underexpression characteristically altered the microvasculature. In Fbn1C1041G/+ and Fbn1mgR/mgR mice, arterioles were enlarged with reduced MAGP1 deposition and focal loss of smooth muscle cell coverage. Losartan, which prevents aortic enlargement in Fbn1C1041G/+ mice, prevented smooth muscle cell loss and vessel leakiness when administrated in a preventive mode. Moreover, losartan also partially rescued the defects in a curative mode. Thus, fibrillin-1/MAGP1 performs essential functions in arteriolar integrity and mutant fibrillin-1-induced defects can be prevented or partially rescued pharmacologically. These new findings could have implications for people with Marfan syndrome.
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25
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Navneet S, Rohrer B. Elastin turnover in ocular diseases: A special focus on age-related macular degeneration. Exp Eye Res 2022; 222:109164. [PMID: 35798060 PMCID: PMC9795808 DOI: 10.1016/j.exer.2022.109164] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 06/08/2022] [Accepted: 06/20/2022] [Indexed: 12/30/2022]
Abstract
The extracellular matrix (ECM) and its turnover play a crucial role in the pathogenesis of several inflammatory diseases, including age-related macular degeneration (AMD). Elastin, a critical protein component of the ECM, not only provides structural and mechanical support to tissues, but also mediates several intracellular and extracellular molecular signaling pathways. Abnormal turnover of elastin has pathological implications. In the eye elastin is a major structural component of Bruch's membrane (BrM), a critical ECM structure separating the retinal pigment epithelium (RPE) from the choriocapillaris. Reduced integrity of macular BrM elastin, increased serum levels of elastin-derived peptides (EDPs), and elevated elastin antibodies have been reported in AMD. Existing reports suggest that elastases, the elastin-degrading enzymes secreted by RPE, infiltrating macrophages or neutrophils could be involved in BrM elastin degradation, thus contributing to AMD pathogenesis. EDPs derived from elastin degradation can increase inflammatory and angiogenic responses in tissues, and the elastin antibodies are shown to play roles in immune cell activity and complement activation. This review summarizes our current understanding on the elastases/elastin fragments-mediated mechanisms of AMD pathogenesis.
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Affiliation(s)
- Soumya Navneet
- Department of Ophthalmology, Medical University of South Carolina, Charleston, SC, USA.
| | - Bärbel Rohrer
- Department of Ophthalmology, Medical University of South Carolina, Charleston, SC, USA; Department of Neurosciences, Medical University of South Carolina, Charleston, SC, USA; Ralph H. Johnson VA Medical Center, Division of Research, Charleston, SC, USA.
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26
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Dooling LJ, Saini K, Anlaş AA, Discher DE. Tissue mechanics coevolves with fibrillar matrisomes in healthy and fibrotic tissues. Matrix Biol 2022; 111:153-188. [PMID: 35764212 PMCID: PMC9990088 DOI: 10.1016/j.matbio.2022.06.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 06/16/2022] [Accepted: 06/23/2022] [Indexed: 12/12/2022]
Abstract
Fibrillar proteins are principal components of extracellular matrix (ECM) that confer mechanical properties to tissues. Fibrosis can result from wound repair in nearly every tissue in adults, and it associates with increased ECM density and crosslinking as well as increased tissue stiffness. Such fibrotic tissues are a major biomedical challenge, and an emerging view posits that the altered mechanical environment supports both synthetic and contractile myofibroblasts in a state of persistent activation. Here, we review the matrisome in several fibrotic diseases, as well as normal tissues, with a focus on physicochemical properties. Stiffness generally increases with the abundance of fibrillar collagens, the major constituent of ECM, with similar mathematical trends for fibrosis as well as adult tissues from soft brain to stiff bone and heart development. Changes in expression of other core matrisome and matrisome-associated proteins or proteoglycans contribute to tissue stiffening in fibrosis by organizing collagen, crosslinking ECM, and facilitating adhesion of myofibroblasts. Understanding how ECM composition and mechanics coevolve during fibrosis can lead to better models and help with antifibrotic therapies.
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Affiliation(s)
- Lawrence J Dooling
- Molecular and Cellular Biophysics Lab, University of Pennsylvania,Philadelphia, PA 19104, USA
| | - Karanvir Saini
- Molecular and Cellular Biophysics Lab, University of Pennsylvania,Philadelphia, PA 19104, USA
| | - Alişya A Anlaş
- Molecular and Cellular Biophysics Lab, University of Pennsylvania,Philadelphia, PA 19104, USA
| | - Dennis E Discher
- Molecular and Cellular Biophysics Lab, University of Pennsylvania,Philadelphia, PA 19104, USA.
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27
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Salmasi MY, Morris-Rosendahl D, Jarral OA, Rosendahl U, Asimakopoulos G, Raja S, Aragon-Martin JA, Child A, Pepper J, Oo A, Athanasiou T. Determining the genetic contribution in patients with non-syndromic ascending thoracic aortic aneurysms: Correlation with findings from computational pathology. Int J Cardiol 2022; 366:1-9. [PMID: 35830949 DOI: 10.1016/j.ijcard.2022.07.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 06/17/2022] [Accepted: 07/07/2022] [Indexed: 01/01/2023]
Abstract
OBJECTIVES This study aims to identify the clinical utility of targeted-genetic sequencing in a cohort of patients with TAA and establish a new method for regional histological characterisation of TAA disease. METHODS Fifty-four patients undergoing surgery for proximal TAA were recruited. EXCLUSIONS connective tissue disease, bicuspid aortic valves, redo surgery. All patients underwent next generation sequencing (NGS) using a custom gene panel containing 63 genes previously associated with TAA on Illumina MiSeqor NextSeq550 platforms. Explanted TAA tissue was obtained en-bloc from 34/54 patients, and complete circumferential strips of TAA tissue processed into whole slides which were subsequently digitalised. Computational pathology methods were employed to quantify elastin, cellularity and collagen in six equally divided regions across the whole aneurysm circumference. RESULTS Of 54 patients, clearly pathogenic or potentially pathogenic variants were found in 7.4%: namely LOX, PRKG1, TGFBR1 and SMAD3 genes. 55% had at least one variant of unknown significance (VUS) and seven of the VUSs were in genes with a strong disease association (category A) genes, whilst 15 were from moderate risk (category B) genes. Elastin and collagen abundance displayed high regional variation throughout the aneurysm circumference. In patients with <60% total elastin, the loss of elastin was more significant on the outer curve (38.0% vs 47.4%, p = 0.0094). The presence of VUS, higher pulse wave velocity and advancing age were predictors of elastin loss (regression analysis: p < 0.05). CONCLUSIONS These findings demonstrate the heterogeneity of TAA disease microstructure and the potential link between histological appearance and clinical factors, including genetic variation.
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Affiliation(s)
| | | | - Omar A Jarral
- Department of Surgery and Cancer, Imperial College London, UK
| | | | | | - Shahzad Raja
- Royal Brompton and Harefield Foundation Trust, UK
| | | | - Anne Child
- Guy Scadding Building, Marfan Trust, London, UK; Sonalee Laboratory, Imperial College, London, UK
| | - John Pepper
- Royal Brompton and Harefield Foundation Trust, UK
| | - Aung Oo
- Aortovascular Unit, Barts Heart Centre, UK
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28
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Tang F, Brune JE, Chang MY, Reeves SR, Altemeier WA, Frevert CW. Defining the Versican Interactome in Lung Health and Disease. Am J Physiol Cell Physiol 2022; 323:C249-C276. [PMID: 35649251 PMCID: PMC9291419 DOI: 10.1152/ajpcell.00162.2022] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The extracellular matrix (ECM) imparts critical mechanical and biochemical information to cells in the lungs. Proteoglycans are essential constituents of the ECM and play a crucial role in controlling numerous biological processes, including regulating cellular phenotype and function. Versican, a chondroitin sulfate proteoglycan required for embryonic development, is almost absent from mature, healthy lungs and is re-expressed and accumulates in acute and chronic lung disease. Studies using genetically engineered mice show that the versican-enriched matrix can be pro- or anti-inflammatory depending on the cellular source or disease process studied. The mechanisms whereby versican develops a contextual ECM remain largely unknown. The primary goal of this review is to provide an overview of the interaction of versican with its many binding partners, the "versican interactome," and how through these interactions, versican is an integrator of complex extracellular information. Hopefully, the information provided in this review will be used to develop future studies to determine how versican and its binding partners can develop contextual ECMs that control select biological processes. While this review focuses on versican and the lungs, what is described can be extended to other proteoglycans, tissues, and organs.
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Affiliation(s)
- Fengying Tang
- Center for Lung Biology, the University of Washington at South Lake Union, Seattle, WA, United States.,Department of Comparative Medicine, University of Washington, Seattle, WA, United States
| | - Jourdan E Brune
- Center for Lung Biology, the University of Washington at South Lake Union, Seattle, WA, United States.,Department of Comparative Medicine, University of Washington, Seattle, WA, United States
| | - Mary Y Chang
- Center for Lung Biology, the University of Washington at South Lake Union, Seattle, WA, United States.,Department of Comparative Medicine, University of Washington, Seattle, WA, United States
| | - Stephen R Reeves
- Center for Immunity and Immunotherapies, Seattle Children's Research Institute, Seattle, WA, United States.,Division of Pulmonary and Sleep Medicine, Department of Pediatrics, University of Washington, Seattle, WA, United States
| | - William A Altemeier
- Center for Lung Biology, the University of Washington at South Lake Union, Seattle, WA, United States.,ivision of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Washington, Seattle, WA, United States
| | - Charles W Frevert
- Center for Lung Biology, the University of Washington at South Lake Union, Seattle, WA, United States.,Department of Comparative Medicine, University of Washington, Seattle, WA, United States.,ivision of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Washington, Seattle, WA, United States
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29
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LTBP1 promotes fibrillin incorporation into the extracellular matrix. Matrix Biol 2022; 110:60-75. [PMID: 35452817 DOI: 10.1016/j.matbio.2022.04.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 04/12/2022] [Accepted: 04/16/2022] [Indexed: 12/23/2022]
Abstract
LTBP1 is a large extracellular matrix protein and an associated ligand of fibrillin-microfibrils. Knowledge of LTBP1 functions is largely limited to its role in targeting and sequestering TGFβ growth factors within the extracellular matrix, thereby regulating their bioavailability. However, the recent description of a wide spectrum of phenotypes in multiple tissues in patients harboring LTBP1 pathogenic variants suggests a multifaceted role of the protein in the homeostasis of connective tissues. To better understand the human pathology caused by LTBP1 deficiency it is important to investigate its functional role in extracellular matrix formation. In this study, we show that LTBP1 coordinates the incorporation of fibrillin-1 and -2 into the extracellular matrix in vitro. We also demonstrate that this function is differentially exerted by the two isoforms, the short and long forms of LTBP1. Thereby our findings uncover a novel TGFβ-independent LTBP1 function potentially contributing to the development of connective tissue disorders.
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30
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Identification, function, and biological relevance of POGLUT2 and POGLUT3. Biochem Soc Trans 2022; 50:1003-1012. [PMID: 35411374 DOI: 10.1042/bst20210850] [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: 02/24/2022] [Revised: 03/25/2022] [Accepted: 03/28/2022] [Indexed: 11/17/2022]
Abstract
O-glycosylation of Epidermal Growth Factor-like (EGF) repeats plays crucial roles in protein folding, trafficking and function. The Notch extracellular domain has been used as a model to study these mechanisms due to its many O-glycosylated EGF repeats. Three enzymes were previously known to O-glycosylate Notch EGF repeats: Protein O-Glucosyltransferase 1 (POGLUT1), Protein O-Fucosyltransferase 1 (POFUT1), and EGF Domain Specific O-Linked N-Acetylglucosamine Transferase (EOGT). All of these modifications affect Notch activity. Recently, POGLUT2 and POGLUT3 were identified as two novel O-glucosyltransferases that modify a few Notch EGF repeats at sites distinct from those modified by POGLUT1. Comparison of these modification sites revealed a putative consensus sequence which predicted modification of many extracellular matrix proteins including fibrillins (FBNs) and Latent TGFβ-binding proteins (LTBPs). Glycoproteomic analysis revealed that approximately half of the 47 EGF repeats in FBN1 and FBN2, and half of the 18 EGF repeats in LTBP1, are modified by POGLUT2 and/or POGLUT3. Cellular assays showed that loss of modifications by POGLUT2 and/or POGLUT3 significantly reduces FBN1 secretion. There is precedent for EGF modifications to affect protein-protein interactions, as has been demonstrated by research of POGLUT1 and POFUT1 modifications on Notch. Here we discuss the identification and characterization of POGLUT2 and POGLUT3 and the ongoing research that continues to elucidate the biological significance of these novel enzymes.
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31
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Zhang X, Alanazi YF, Jowitt TA, Roseman AM, Baldock C. Elastic Fibre Proteins in Elastogenesis and Wound Healing. Int J Mol Sci 2022; 23:4087. [PMID: 35456902 PMCID: PMC9027394 DOI: 10.3390/ijms23084087] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/31/2022] [Accepted: 04/03/2022] [Indexed: 12/30/2022] Open
Abstract
As essential components of our connective tissues, elastic fibres give tissues such as major blood vessels, skin and the lungs their elasticity. Their formation is complex and co-ordinately regulated by multiple factors. In this review, we describe key players in elastogenesis: fibrillin-1, tropoelastin, latent TGFβ binding protein-4, and fibulin-4 and -5. We summarise their roles in elastogenesis, discuss the effect of their mutations on relevant diseases, and describe their interactions involved in forming the elastic fibre network. Moreover, we look into their roles in wound repair for a better understanding of their potential application in tissue regeneration.
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Affiliation(s)
- Xinyang Zhang
- Wellcome Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PT, UK; (X.Z.); (T.A.J.)
- School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PT, UK;
| | - Yasmene F. Alanazi
- Department of Biochemistry, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi Arabia;
| | - Thomas A. Jowitt
- Wellcome Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PT, UK; (X.Z.); (T.A.J.)
| | - Alan M. Roseman
- School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PT, UK;
| | - Clair Baldock
- Wellcome Centre for Cell-Matrix Research, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PT, UK; (X.Z.); (T.A.J.)
- School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PT, UK;
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Ramakrishnan R, Venkiteswaran K, Sreelatha HV, Lekshman A, Arumugham S, KalliyanaKrishnan L. Assembly of skin substitute by cross-linking natural biomaterials on synthetic biodegradable porous mat for critical-size full-thickness burn wound regeneration. Biomed Mater 2022; 17. [PMID: 35168228 DOI: 10.1088/1748-605x/ac5573] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 02/15/2022] [Indexed: 12/21/2022]
Abstract
Human skin architecture comprises several interpenetrating macromolecules seen as organized extracellular matrix (ECM). For regeneration of critical-size acute and chronic wounds, substituting the damaged tissue with artificially assembled biomolecules offer an interactivemilieu. This study reports development and preclinical evaluation of a biodegradable and immuno-compatible scaffold for regeneration of critical-size (4 × 4 cm2) full-thickness rabbit burn wounds. The designed wound care product comprises synthetic terpolymer poly(L-Lactide-co-Glycolide-co-Caprolactone) (PLGC), human clinical-grade fibrin (FIB), and hyaluronic acid (HA), termed as PLGCFIBHA. Here, clotting of fibrinogen concentrate (FC) with excess thrombin in the scaffold create an interpenetrating FIB network harnessed with adhesive molecules like fibronectin and laminin present in FC with exogenous HA to produce ECM-likemilieuon porous PLGC. Penetrating into porous PLGCFIBHA, long term study showed a regulated fibroblast growth resulting in non-fibrotic dermal-like tissuein vitro. The freeze-dried PLGCFIBHA with residual thrombin facilitated suture-less, hemostatic matrix adhesion to the wound bedin vivo. By 28 d, mature and scar-less epidermis-dermis formation with skin appendages was evident in the PLGCFIBHA-treated wound area. Both negative (untreated/sham) and positive (commercial matrix-treated) control wounds showed incomplete regeneration. The PLGCFIBHA-treated wounds were comparable to native skin by 56 d. These regenerative outcomes upon single application of PLGCFIBHA confirms its potential translational value for wound care.
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Affiliation(s)
- Rashmi Ramakrishnan
- Division of Thrombosis Research, Department of Applied Biology, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology (SCTIMST), Poojappura, Thiruvananthapuram, Kerala 695012, India
| | - KalliyanaKrishnan Venkiteswaran
- Division of Dental Products, Department of Biomaterials Science and Technology, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology (SCTIMST), Poojappura, Thiruvananthapuram, Kerala 695012, India
| | - Harikrishnan Vijayakumar Sreelatha
- Division of Laboratory Animal Science, Department of Applied Biology, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology (SCTIMST), Poojappura, Thiruvananthapuram, Kerala 695012, India
| | - Aishwarya Lekshman
- Division of Laboratory Animal Science, Department of Applied Biology, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology (SCTIMST), Poojappura, Thiruvananthapuram, Kerala 695012, India
| | - Sabareeswaran Arumugham
- Division of Experimental Pathology, Department of Applied Biology, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology (SCTIMST), Poojappura, Thiruvananthapuram, Kerala 695012, India
| | - Lissy KalliyanaKrishnan
- Division of Thrombosis Research, Department of Applied Biology, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology (SCTIMST), Poojappura, Thiruvananthapuram, Kerala 695012, India
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The Multiple Functions of Fibrillin-1 Microfibrils in Organismal Physiology. Int J Mol Sci 2022; 23:ijms23031892. [PMID: 35163812 PMCID: PMC8836826 DOI: 10.3390/ijms23031892] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/27/2022] [Accepted: 02/03/2022] [Indexed: 02/05/2023] Open
Abstract
Fibrillin-1 is the major structural component of the 10 nm-diameter microfibrils that confer key physical and mechanical properties to virtually every tissue, alone and together with elastin in the elastic fibers. Mutations in fibrillin-1 cause pleiotropic manifestations in Marfan syndrome (MFS), including dissecting thoracic aortic aneurysms, myocardial dysfunction, progressive bone loss, disproportionate skeletal growth, and the dislocation of the crystalline lens. The characterization of these MFS manifestations in mice, that replicate the human phenotype, have revealed that the underlying mechanisms are distinct and organ-specific. This brief review summarizes relevant findings supporting this conclusion.
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Lockhart-Cairns MP, Cain SA, Dajani R, Steer R, Thomson J, Alanazi YF, Kielty CM, Baldock C. Latent TGFβ complexes are transglutaminase cross-linked to fibrillin to facilitate TGFβ activation. Matrix Biol 2022; 107:24-39. [PMID: 35122964 PMCID: PMC8932414 DOI: 10.1016/j.matbio.2022.01.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 01/21/2022] [Accepted: 01/25/2022] [Indexed: 11/24/2022]
Abstract
TGFβ is regulated via the formation latent complexes in the extracellular matrix. Fibrillin-1 is a substrate for transglutaminase-2 which forms a covalent link between fibrillin-1 and latent TGFβ complexes. Formation of the cross-link increases TGFβ activation in cell-based assays. Fibrillin may direct the latent TGFβ complexes to the cell surface for activation. The structure of the cross-linked LTBP1-fibrillin complex has a perpendicular arrangement to enable bridging long-range interactions between the matrix and cell surface.
TGFβ superfamily members are potent growth factors in the extracellular matrix with essential roles in all aspects of cellular behaviour. Latent TGFβ binding proteins (LTBPs) are co-expressed with TGFβ, essential for correct folding and secretion of the growth factor, to form large latent complexes. These large latent complexes bind extracellular proteins such as fibrillin for sequestration of TGFβ in the matrix, essential for normal tissue function, and dysregulated TGFβ signalling is a hallmark of many fibrillinopathies. Transglutaminase-2 (TG2) cross-linking of LTBPs is known to play a role in TGFβ activation but the underlying molecular mechanisms are not resolved. Here we show that fibrillin is a matrix substrate for TG2 and that TG2 cross-linked complexes can be formed between fibrillin and LTBP-1 and -3, and their latent TGFβ complexes. The structure of the fibrillin-LTBP1 complex shows that the two elongated proteins interact in a perpendicular arrangement which would allow them to form distal interactions between the matrix and the cell surface. Formation of the cross-link with fibrillin does not change the interaction between latent TGFβ and integrin αVβ6 but does increase TGFβ activation in cell-based assays. The activating effect may be due to direction of the latent complexes to the cell surface by fibrillin, as competition with heparan sulphate can ameliorate the activating effect. Together, these data support that TGFβ activation can be enhanced by covalent tethering of LTBPs to the matrix via fibrillin.
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Affiliation(s)
- Michael P Lockhart-Cairns
- Wellcome Centre for Cell-Matrix Research, Division of Cell-Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, M13 9PT, UK
| | - Stuart A Cain
- Wellcome Centre for Cell-Matrix Research, Division of Cell-Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, M13 9PT, UK
| | - Rana Dajani
- Wellcome Centre for Cell-Matrix Research, Division of Cell-Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, M13 9PT, UK
| | - Ruth Steer
- Wellcome Centre for Cell-Matrix Research, Division of Cell-Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, M13 9PT, UK
| | - Jennifer Thomson
- Wellcome Centre for Cell-Matrix Research, Division of Cell-Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, M13 9PT, UK
| | - Yasmene F Alanazi
- Wellcome Centre for Cell-Matrix Research, Division of Cell-Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, M13 9PT, UK
| | - Cay M Kielty
- Wellcome Centre for Cell-Matrix Research, Division of Cell-Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, M13 9PT, UK
| | - Clair Baldock
- Wellcome Centre for Cell-Matrix Research, Division of Cell-Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, M13 9PT, UK.
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Boraldi F, Lofaro FD, Cossarizza A, Quaglino D. The "Elastic Perspective" of SARS-CoV-2 Infection and the Role of Intrinsic and Extrinsic Factors. Int J Mol Sci 2022; 23:ijms23031559. [PMID: 35163482 PMCID: PMC8835950 DOI: 10.3390/ijms23031559] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 01/20/2022] [Accepted: 01/28/2022] [Indexed: 02/07/2023] Open
Abstract
Elastin represents the structural component of the extracellular matrix providing elastic recoil to tissues such as skin, blood vessels and lungs. Elastogenic cells secrete soluble tropoelastin monomers into the extracellular space where these monomers associate with other matrix proteins (e.g., microfibrils and glycoproteins) and are crosslinked by lysyl oxidase to form insoluble fibres. Once elastic fibres are formed, they are very stable, highly resistant to degradation and have an almost negligible turnover. However, there are circumstances, mainly related to inflammatory conditions, where increased proteolytic degradation of elastic fibres may lead to consequences of major clinical relevance. In severely affected COVID-19 patients, for instance, the massive recruitment and activation of neutrophils is responsible for the profuse release of elastases and other proteolytic enzymes which cause the irreversible degradation of elastic fibres. Within the lungs, destruction of the elastic network may lead to the permanent impairment of pulmonary function, thus suggesting that elastases can be a promising target to preserve the elastic component in COVID-19 patients. Moreover, intrinsic and extrinsic factors additionally contributing to damaging the elastic component and to increasing the spread and severity of SARS-CoV-2 infection are reviewed.
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Affiliation(s)
- Federica Boraldi
- Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (F.B.); (F.D.L.)
| | - Francesco Demetrio Lofaro
- Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (F.B.); (F.D.L.)
| | - Andrea Cossarizza
- Department of Medical and Surgical Sciences for Children and Adults, University of Modena and Reggio Emilia, 41125 Modena, Italy;
| | - Daniela Quaglino
- Department of Life Sciences, University of Modena and Reggio Emilia, 41125 Modena, Italy; (F.B.); (F.D.L.)
- Correspondence:
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Wu Y, Devotta A, José-Edwards DS, Kugler JE, Negrón-Piñeiro LJ, Braslavskaya K, Addy J, Saint-Jeannet JP, Di Gregorio A. Xbp1 and Brachyury establish an evolutionarily conserved subcircuit of the notochord gene regulatory network. eLife 2022; 11:e73992. [PMID: 35049502 PMCID: PMC8803312 DOI: 10.7554/elife.73992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 01/19/2022] [Indexed: 11/13/2022] Open
Abstract
Gene regulatory networks coordinate the formation of organs and structures that compose the evolving body plans of different organisms. We are using a simple chordate model, the Ciona embryo, to investigate the essential gene regulatory network that orchestrates morphogenesis of the notochord, a structure necessary for the proper development of all chordate embryos. Although numerous transcription factors expressed in the notochord have been identified in different chordates, several of them remain to be positioned within a regulatory framework. Here, we focus on Xbp1, a transcription factor expressed during notochord formation in Ciona and other chordates. Through the identification of Xbp1-downstream notochord genes in Ciona, we found evidence of the early co-option of genes involved in the unfolded protein response to the notochord developmental program. We report the regulatory interplay between Xbp1 and Brachyury, and by extending these results to Xenopus, we show that Brachyury and Xbp1 form a cross-regulatory subcircuit of the notochord gene regulatory network that has been consolidated during chordate evolution.
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Affiliation(s)
- Yushi Wu
- Department of Molecular Pathobiology, New York University College of DentistryNew YorkUnited States
| | - Arun Devotta
- Department of Molecular Pathobiology, New York University College of DentistryNew YorkUnited States
| | - Diana S José-Edwards
- Department of Molecular Pathobiology, New York University College of DentistryNew YorkUnited States
| | - Jamie E Kugler
- Department of Molecular Pathobiology, New York University College of DentistryNew YorkUnited States
| | - Lenny J Negrón-Piñeiro
- Department of Molecular Pathobiology, New York University College of DentistryNew YorkUnited States
| | - Karina Braslavskaya
- Department of Molecular Pathobiology, New York University College of DentistryNew YorkUnited States
| | - Jermyn Addy
- Department of Molecular Pathobiology, New York University College of DentistryNew YorkUnited States
| | | | - Anna Di Gregorio
- Department of Molecular Pathobiology, New York University College of DentistryNew YorkUnited States
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Jeong ES, Park BH, Lee S, Jang JH. Construction and Evaluation of Recombinant Chimeric Fibrillin and Elastin Fragment in Human Mesenchymal Stem Cells. Protein Pept Lett 2021; 29:176-183. [PMID: 34875983 DOI: 10.2174/0929866528666211207110043] [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: 07/26/2021] [Revised: 10/14/2021] [Accepted: 10/22/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Diverse extracellular matrix (ECM) proteins physically interact with stem cells and regulate stem cell function. However, the large molecular weight of the natural ECM renders large-scale fabrication of a similar functional structure challenging. OBJECTIVE The objective of this study was to construct a low molecular weight and multifunctional chimeric form of recombinant ECM to stimulate mesenchymal stem cell (MSC) for tissue repair. We engineered Fibrillin-1PF14 fused to an elastin-like polypeptide to develop a new biomimetic ECM for stem cell differentiation and investigated whether this recombinant chimeric Fibrillin-Elastin fragment (rcFE) was effective on human nasal inferior turbinate-derived mesenchymal stem cells (hTMSCs). METHODS hTMSCs were grown in the medium supplemented with rcFE, then the effect of the protein was confirmed through cell adhesion assay, proliferation assay, and real-time PCR. RESULTS rcFE enhanced the adhesion activity of hTMSCs by 2.7-fold at the optimal concentration, and the proliferation activity was 2.6-fold higher than that of the control group (non-treatment rcFE). In addition, when smooth muscle cell differentiation markers were identified by real-time PCR, Calponin increased about 6-fold, α-actin about 9-fold, and MYH11 about 10-fold compared to the control group. CONCLUSION Chimeric rcFE enhanced cellular functions such as cell adhesion, proliferation, and smooth muscle differentiation of hTMSCs, suggesting that the rcFE can facilitate the induction of tissue regeneration.
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Affiliation(s)
- Eui-Seung Jeong
- Department of Biochemistry, Inha University School of Medicine, Incheon 22212. Korea
| | - Bo-Hyun Park
- Department of Biochemistry, Inha University School of Medicine, Incheon 22212. Korea
| | - Sujin Lee
- Department of Biochemistry, Inha University School of Medicine, Incheon 22212. Korea
| | - Jun-Hyeog Jang
- Department of Biochemistry, Inha University School of Medicine, Incheon 22212. Korea
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38
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Singh M, Becker M, Godwin AR, Baldock C. Structural studies of elastic fibre and microfibrillar proteins. Matrix Biol Plus 2021; 12:100078. [PMID: 34355160 PMCID: PMC8322146 DOI: 10.1016/j.mbplus.2021.100078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 06/26/2021] [Accepted: 06/28/2021] [Indexed: 11/27/2022] Open
Abstract
Elastic tissues owe their functional properties to the composition of their extracellular matrices, particularly the range of extracellular, multidomain extensible elastic fibre and microfibrillar proteins. These proteins include elastin, fibrillin, latent TGFβ binding proteins (LTBPs) and collagens, where their biophysical and biochemical properties not only give the matrix structural integrity, but also play a vital role in the mechanisms that underlie tissue homeostasis. Thus far structural information regarding the structure and hierarchical assembly of these molecules has been challenging and the resolution has been limited due to post-translational modification and their multidomain nature leading to flexibility, which together result in conformational and structural heterogeneity. In this review, we describe some of the matrix proteins found in elastic fibres and the new emerging techniques that can shed light on their structure and dynamic properties.
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Affiliation(s)
- Mukti Singh
- Wellcome Centre for Cell-Matrix Research, Division of Cell-Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PT, UK
| | - Mark Becker
- Wellcome Centre for Cell-Matrix Research, Division of Cell-Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PT, UK
| | - Alan R.F. Godwin
- Wellcome Centre for Cell-Matrix Research, Division of Cell-Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PT, UK
| | - Clair Baldock
- Wellcome Centre for Cell-Matrix Research, Division of Cell-Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PT, UK
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Klinngam W, Rungkamoltip P, Thongin S, Joothamongkhon J, Khumkhrong P, Khongkow M, Namdee K, Tepaamorndech S, Chaikul P, Kanlayavattanakul M, Lourith N, Piboonprai K, Ruktanonchai U, Asawapirom U, Iempridee T. Polymethoxyflavones from Kaempferia parviflora ameliorate skin aging in primary human dermal fibroblasts and ex vivo human skin. Biomed Pharmacother 2021; 145:112461. [PMID: 34839253 DOI: 10.1016/j.biopha.2021.112461] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 11/13/2021] [Accepted: 11/19/2021] [Indexed: 12/12/2022] Open
Abstract
Skin aging is accompanied by an increase in the number of senescent cells, resulting in various pathological outcomes. These include inflammation, impaired barrier function, and susceptibility to skin disorders such as cancer. Kaempferia parviflora (Thai black ginger), a medicinal plant native to Thailand, has been shown to counteract inflammation, cancer, and senescence. This study demonstrates that polymethoxyflavones (5,7-dimethoxyflavone, 5,7,4'-trimethoxyflavone, and 3,5,7,3',4'-pentamethoxyflavone) purified from K. parviflora rhizomes suppressed cellular senescence, reactive oxygen species, and the senescence-associated secretory phenotype in primary human dermal fibroblasts. In addition, they increased tropocollagen synthesis and alleviated free radical-induced cellular and mitochondrial damage. Moreover, the compounds mitigated chronological aging in a human ex vivo skin model by attenuating senescence and restoring expression of essential components of the extracellular matrix, including collagen type I, fibrillin-1, and hyaluronic acid. Finally, we report that polymethoxyflavones enhanced epidermal thickness and epidermal-dermal stability, while blocking age-related inflammation in skin explants. Our findings support the use of polymethoxyflavones from K. parviflora as natural anti-aging agents, highlighting their potential as active ingredients in cosmeceutical and nutraceutical products.
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Affiliation(s)
- Wannita Klinngam
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency, Pathum Thani 12120, Thailand
| | - Phetploy Rungkamoltip
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency, Pathum Thani 12120, Thailand
| | - Saowarose Thongin
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency, Pathum Thani 12120, Thailand
| | - Jaruwan Joothamongkhon
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency, Pathum Thani 12120, Thailand
| | - Phattharachanok Khumkhrong
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency, Pathum Thani 12120, Thailand
| | - Mattaka Khongkow
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency, Pathum Thani 12120, Thailand
| | - Katawut Namdee
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency, Pathum Thani 12120, Thailand
| | - Surapun Tepaamorndech
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency, Pathum Thani 12120, Thailand
| | - Puxvadee Chaikul
- Phytocosmetics and Cosmeceuticals Research Group, School of Cosmetic Science, Mae Fah Luang University, Chiang Rai, Thailand; School of Cosmetic Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Mayuree Kanlayavattanakul
- Phytocosmetics and Cosmeceuticals Research Group, School of Cosmetic Science, Mae Fah Luang University, Chiang Rai, Thailand; School of Cosmetic Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Nattaya Lourith
- Phytocosmetics and Cosmeceuticals Research Group, School of Cosmetic Science, Mae Fah Luang University, Chiang Rai, Thailand; School of Cosmetic Science, Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Kitiya Piboonprai
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency, Pathum Thani 12120, Thailand; Laboratory of Host Defense, The World Premier International Research Center Initiative (WPI), Immunology Frontier Research Center (IFReC), Osaka University, Osaka 565-0871, Japan
| | - Uracha Ruktanonchai
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency, Pathum Thani 12120, Thailand
| | - Udom Asawapirom
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency, Pathum Thani 12120, Thailand
| | - Tawin Iempridee
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency, Pathum Thani 12120, Thailand.
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Linares-Gonzalez L, Rodenas-Herranz T, Campos F, Ruiz-Villaverde R, Carriel V. Basic Quality Controls Used in Skin Tissue Engineering. Life (Basel) 2021; 11:1033. [PMID: 34685402 PMCID: PMC8541591 DOI: 10.3390/life11101033] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/25/2021] [Accepted: 09/25/2021] [Indexed: 12/15/2022] Open
Abstract
Reconstruction of skin defects is often a challenging effort due to the currently limited reconstructive options. In this sense, tissue engineering has emerged as a possible alternative to replace or repair diseased or damaged tissues from the patient's own cells. A substantial number of tissue-engineered skin substitutes (TESSs) have been conceived and evaluated in vitro and in vivo showing promising results in the preclinical stage. However, only a few constructs have been used in the clinic. The lack of standardization in evaluation methods employed may in part be responsible for this discrepancy. This review covers the most well-known and up-to-date methods for evaluating the optimization of new TESSs and orientative guidelines for the evaluation of TESSs are proposed.
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Affiliation(s)
- Laura Linares-Gonzalez
- Servicio de Dermatología, Hospital Universitario San Cecilio, 18016 Granada, Spain; (L.L.-G.); (T.R.-H.)
- Ibs. GRANADA, Instituto Biosanitario de Granada, 18016 Granada, Spain; (F.C.); (V.C.)
- Department of Histology, University of Granada, 18016 Granada, Spain
| | - Teresa Rodenas-Herranz
- Servicio de Dermatología, Hospital Universitario San Cecilio, 18016 Granada, Spain; (L.L.-G.); (T.R.-H.)
- Ibs. GRANADA, Instituto Biosanitario de Granada, 18016 Granada, Spain; (F.C.); (V.C.)
- Department of Histology, University of Granada, 18016 Granada, Spain
| | - Fernando Campos
- Ibs. GRANADA, Instituto Biosanitario de Granada, 18016 Granada, Spain; (F.C.); (V.C.)
- Department of Histology, University of Granada, 18016 Granada, Spain
| | - Ricardo Ruiz-Villaverde
- Servicio de Dermatología, Hospital Universitario San Cecilio, 18016 Granada, Spain; (L.L.-G.); (T.R.-H.)
- Ibs. GRANADA, Instituto Biosanitario de Granada, 18016 Granada, Spain; (F.C.); (V.C.)
- Department of Histology, University of Granada, 18016 Granada, Spain
| | - Víctor Carriel
- Ibs. GRANADA, Instituto Biosanitario de Granada, 18016 Granada, Spain; (F.C.); (V.C.)
- Department of Histology, University of Granada, 18016 Granada, Spain
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Yang Z, Xue F, Li M, Zhu X, Lu X, Wang C, Xu E, Wang X, Zhang L, Yu H, Ren C, Wang H, Wang Y, Chen J, Guan W, Xia X. Extracellular Matrix Characterization in Gastric Cancer Helps to Predict Prognosis and Chemotherapy Response. Front Oncol 2021; 11:753330. [PMID: 34646782 PMCID: PMC8503650 DOI: 10.3389/fonc.2021.753330] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 09/07/2021] [Indexed: 12/23/2022] Open
Abstract
The extracellular matrix (ECM) plays a central role in the formation of the tumor microenvironment. The deposition of the ECM is associated with poor prognosis in a variety of tumors. Aberrant ECM deposition could undermine the effect of chemotherapy and immunotherapy. However, there is no systematic analysis on the relationship between the ECM and prognosis or chemotherapy effect. In the present study, we applied the gene set variation analysis (GSVA) algorithm to score 2199 canonical pathways in 2125 cases of probe or sequencing data and identified the core matrisome as the driving factor in gastric cancer progression. We classified gastric cancer samples into three clusters according to the composition of the ECM and evaluated clinical and multi-omics characterization of ECM phenotypes. The ECM score was evaluated by GSVA score of core matrisome and a higher ECM score predicted poor prognosis of gastric cancer [Hazard Ratio (HR), 2.084; p-value < 2 × 10-16]. In The Cancer Genome Atlas (TCGA) cohort and KUGH, YUSH, and KUCM cohorts, we verified that patients with a low ECM score could benefit from chemotherapy. By contrast, patients with a high ECM score did not achieve satisfactory response from chemotherapy. Determining the characteristics of the ECM microenvironment might help to predict the prognosis and chemotherapy response of patients with gastric cancer, and help to resolve the enigma of chemoresistance acquisition, as well as providing inspiration to develop combination therapy.
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Affiliation(s)
- Zhi Yang
- Department of General Surgery, Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing, China
| | - Feifei Xue
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
| | - Minhuan Li
- Department of Andrology, Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing, China
| | - Xingya Zhu
- Department of General Surgery, Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing, China
| | - Xiaofeng Lu
- Department of General Surgery, Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing, China
| | - Chao Wang
- Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - En Xu
- Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Xingzhou Wang
- Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Liang Zhang
- Department of General Surgery, Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing, China
| | - Heng Yu
- Department of General Surgery, Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing, China
| | - Chuanfu Ren
- Department of General Surgery, Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing, China
| | - Hao Wang
- Department of General Surgery, Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing, China
- Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Yizhou Wang
- Department of General Surgery, Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing, China
| | - Jie Chen
- Department of Anesthesiology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Wenxian Guan
- Department of General Surgery, Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing, China
- Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Xuefeng Xia
- Department of General Surgery, Drum Tower Clinical Medical College of Nanjing Medical University, Nanjing, China
- Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
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Abstract
As the extracellular matrix protein, elastin is a crucial component of connective tissue in life. It is responsible for the structural integrity and function of tissues undergoing reversible extensibility or deformability, even though it may make up only a small percentage of a tissue. The structure stability, elastic resilience, bioactivity, and ability of self-assembly make elastin a highly desirable candidate for the fabrication of biomaterials. Elastin's properties mainly depend on their special structure. As elastin can be obtained by the assembly and cross-linking of its soluble precursor, tropoelastin. This chapter centers on introducing the structure of those two materials.
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Recombination and Purification of Elastin-Like Polypeptides. Methods Mol Biol 2021. [PMID: 34472058 DOI: 10.1007/978-1-0716-1574-4_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
Elastin, as an extracellular matrix protein, has inherent advantages for biomedical applications. For example, it is highly extensible and biocompatible, biodegradable, and has no immunogenicity. However, directly extracting elastin from biological tissues remains challenging because they usually coexist with other proteins such as collagen. Therefore, an effective strategy to produce elastin is to transfer the elastin's target gene into other expression hosts and synthesize the resultant polypeptides using chemical biology methods. The polypeptides and proteins produced using these methods are usually referred to as elastin-like peptides (ELPs), which have received intensive interests in drug delivery and release, tissue engineering, implanted devices, and so on. Therefore, this chapter introduces the detailed protocol for the preparation of ELPs using genetic recombination, including DNA recombination, expression, and purification. The methods presented here are expected to provide methodological guidance for preparation and application of ELP materials.
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Williamson DB, Sohn CJ, Ito A, Haltiwanger RS. POGLUT2 and POGLUT3 O-glucosylate multiple EGF repeats in fibrillin-1, -2, and LTBP1 and promote secretion of fibrillin-1. J Biol Chem 2021; 297:101055. [PMID: 34411563 PMCID: PMC8405936 DOI: 10.1016/j.jbc.2021.101055] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 07/27/2021] [Accepted: 08/04/2021] [Indexed: 02/06/2023] Open
Abstract
Fibrillin-1 (FBN1) is the major component of extracellular matrix microfibrils, which are required for proper development of elastic tissues, including the heart and lungs. Through protein-protein interactions with latent transforming growth factor (TGF) β-binding protein 1 (LTBP1), microfibrils regulate TGF-β signaling. Mutations within the 47 epidermal growth factor-like (EGF) repeats of FBN1 cause autosomal dominant disorders including Marfan Syndrome, which is characterized by disrupted TGF-β signaling. We recently identified two novel protein O-glucosyltransferases, Protein O-glucosyltransferase 2 (POGLUT2) and 3 (POGLUT3), that modify a small fraction of EGF repeats on Notch. Here, using mass spectral analysis, we show that POGLUT2 and POGLUT3 also modify over half of the EGF repeats on FBN1, fibrillin-2 (FBN2), and LTBP1. While most sites are modified by both enzymes, some sites show a preference for either POGLUT2 or POGLUT3. POGLUT2 and POGLUT3 are homologs of POGLUT1, which stabilizes Notch proteins by addition of O-glucose to Notch EGF repeats. Like POGLUT1, POGLUT2 and 3 can discern a folded versus unfolded EGF repeat, suggesting POGLUT2 and 3 are involved in a protein folding pathway. In vitro secretion assays using the N-terminal portion of recombinant FBN1 revealed reduced FBN1 secretion in POGLUT2 knockout, POGLUT3 knockout, and POGLUT2 and 3 double-knockout HEK293T cells compared with wild type. These results illustrate that POGLUT2 and 3 function together to O-glucosylate protein substrates and that these modifications play a role in the secretion of substrate proteins. It will be interesting to see how disease variants in these proteins affect their O-glucosylation.
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Affiliation(s)
- Daniel B Williamson
- Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia, USA; Department of Biochemistry and Molecular Biology, University of Georgia, Athens, Georgia, USA
| | - Camron J Sohn
- Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia, USA; Department of Biochemistry and Molecular Biology, University of Georgia, Athens, Georgia, USA
| | - Atsuko Ito
- Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia, USA; Department of Biochemistry and Molecular Biology, University of Georgia, Athens, Georgia, USA
| | - Robert S Haltiwanger
- Complex Carbohydrate Research Center, University of Georgia, Athens, Georgia, USA; Department of Biochemistry and Molecular Biology, University of Georgia, Athens, Georgia, USA.
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Eckersley A, Ozols M, O'Connor C, Bell M, Sherratt MJ. Predicting and characterising protein damage in the extracellular matrix. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY 2021. [DOI: 10.1016/j.jpap.2021.100055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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Lewis PN, Young RD, Souza RB, Quantock AJ, Meek KM. Contrast-Enhanced Tissue Processing of Fibrillin-Rich Elastic Fibres for 3D Visualization by Volume Scanning Electron Microscopy. Methods Protoc 2021; 4:mps4030056. [PMID: 34449675 PMCID: PMC8395850 DOI: 10.3390/mps4030056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 08/04/2021] [Accepted: 08/11/2021] [Indexed: 11/16/2022] Open
Abstract
Elastic fibres constitute an important component of the extracellular matrix and currently are the subject of intensive study in order to elucidate their assembly, function and involvement in cell-matrix interactions and disease. However, few studies to date have investigated the 3D architecture of the elastic fibre system in bulk tissue. We describe a protocol for preparation of tissue samples, including primary fixation and backscatter electron contrast-enhancement steps, through dehydration into stable resin-embedded blocks for volume electron microscopy. The use of low molecular weight tannic acid and alcoholic lead staining are critical stages in this procedure. Block preparation by ultramicrotomy and evaporative metal coating prior to microscopical examination are also described. We present images acquired from serial block face scanning electron microscopy of cornea and aorta showing target structures clearly differentiated from cells and other matrix components. The processing method imparts high contrast to fibrillin-containing elastic fibres, thus facilitating their segmentation and rendering into 3D reconstructions by image analysis software from large serial image datasets.
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Affiliation(s)
- Philip N. Lewis
- Structural Biophysics Research Group, School of Optometry & Vision Sciences, Cardiff University, Cardiff CF24 4HQ, UK; (R.D.Y.); (A.J.Q.); (K.M.M.)
- Correspondence:
| | - Robert D. Young
- Structural Biophysics Research Group, School of Optometry & Vision Sciences, Cardiff University, Cardiff CF24 4HQ, UK; (R.D.Y.); (A.J.Q.); (K.M.M.)
| | - R. B. Souza
- Department of Genetics and Evolutionary Biology, University of São Paulo, Rua de Matão 05508-090, Brazil;
| | - Andrew J. Quantock
- Structural Biophysics Research Group, School of Optometry & Vision Sciences, Cardiff University, Cardiff CF24 4HQ, UK; (R.D.Y.); (A.J.Q.); (K.M.M.)
| | - Keith M. Meek
- Structural Biophysics Research Group, School of Optometry & Vision Sciences, Cardiff University, Cardiff CF24 4HQ, UK; (R.D.Y.); (A.J.Q.); (K.M.M.)
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Thunnissen E, Motoi N, Minami Y, Matsubara D, Timens W, Nakatani Y, Ishikawa Y, Baez-Navarro X, Radonic T, Blaauwgeers H, Borczuk AC, Noguchi M. Elastin in pulmonary pathology: relevance in tumors with lepidic or papillary appearance. A comprehensive understanding from a morphological viewpoint. Histopathology 2021; 80:457-467. [PMID: 34355407 PMCID: PMC9293161 DOI: 10.1111/his.14537] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 07/22/2021] [Accepted: 08/03/2021] [Indexed: 11/08/2022]
Abstract
Elastin and collagen are the main components of the lung connective tissue network, and together provide the lung with elasticity and tensile strength. In pulmonary pathology, elastin staining is used to variable extents in different countries. These uses include evaluation of the pleura in staging, and the distinction of invasion from collapse of alveoli after surgery (iatrogenic collapse). In the latter, elastin staining is used to highlight distorted but pre‐existing alveolar architecture from true invasion. In addition to variable levels of use and experience, the interpretation of elastin staining in some adenocarcinomas leads to interpretative differences between collapsed lepidic patterns and true papillary patterns. This review aims to summarise the existing data on the use of elastin staining in pulmonary pathology, on the basis of literature data and morphological characteristics. The effect of iatrogenic collapse and the interpretation of elastin staining in pulmonary adenocarcinomas is discussed in detail, especially for the distinction between lepidic patterns and papillary carcinoma.
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Affiliation(s)
- Erik Thunnissen
- Department of Pathology, Amsterdam University Medical Center, location VUmc, Amsterdam, the Netherlands
| | - Noriko Motoi
- Dept. of Diagnostic Pathology, National Cancer Center Hospital, Tokyo, Japan
| | - Yuko Minami
- National Organization Hospital Ibarakihigashi National Hospital, The Center of Chest Diseases and Severe Motor & Intellectual Disabilities, Pathology Department, Tokai-mura, Naka-gun, Ibaraki, Japan
| | - Daisuke Matsubara
- Division of Integrative Pathology, Jichi Medical University, Tochigi, Japan
| | - Wim Timens
- University of Groningen, University Medical Center Groningen, Department of Pathology and Medical Biology, Groningen, the Netherlands
| | - Yukio Nakatani
- Department of Pathology, Yokosuka Kyosai Hospital, Yokosuka, Japan
| | - Yuichi Ishikawa
- Department of Pathology, International University of Health and Welfare, Mita Hospital, Tokyo, Japan
| | | | - Teodora Radonic
- Department of Pathology, Amsterdam University Medical Center, Amsterdam, the Netherlands
| | - Hans Blaauwgeers
- Department of Pathology, OLVG LAB BV, Amsterdam, the Netherlands
| | - Alain C Borczuk
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Masayuki Noguchi
- Department of Pathology, Institute of Basic Medical Sciences, University of Tsukuba, Tsukuba, Japan
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Correns A, Zimmermann LMA, Baldock C, Sengle G. BMP antagonists in tissue development and disease. Matrix Biol Plus 2021; 11:100071. [PMID: 34435185 PMCID: PMC8377005 DOI: 10.1016/j.mbplus.2021.100071] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 06/04/2021] [Accepted: 06/06/2021] [Indexed: 12/12/2022] Open
Abstract
Bone morphogenic proteins (BMPs) are important growth regulators in embryogenesis and postnatal homeostasis. Their tight regulation is crucial for successful embryonic development as well as tissue homeostasis in the adult organism. BMP inhibition by natural extracellular biologic antagonists represents the most intensively studied mechanistic concept of BMP growth factor regulation. It was shown to be critical for numerous developmental programs, including germ layer specification and spatiotemporal gradients required for the establishment of the dorsal-ventral axis and organ formation. The importance of BMP antagonists for extracellular matrix homeostasis is illustrated by the numerous human connective tissue disorders caused by their mutational inactivation. Here, we will focus on the known functional interactions targeting BMP antagonists to the ECM and discuss how these interactions influence BMP antagonist activity. Moreover, we will provide an overview about the current concepts and investigated molecular mechanisms modulating BMP inhibitor function in the context of development and disease.
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Key Words
- ALK3, anaplastic lymphoma kinase 3
- ATF2, activating transcription factor 2
- ActR, activin receptor
- BDB2, brachydactyly type B2
- BISC, BMP-induced signalling complex
- BMP antagonists
- BMPER, BMP binding endothelial regulator
- BMPs, bone morphogenetic proteins
- Bone morphogenetic protein (BMP)
- CAN, cerberus and DAN
- CDD, craniodiaphyseal dysplasia
- CHRD domain, chordin specific domain
- CUB domain, for complement C1r/C1s, Uegf, Bmp1 domain
- Connective tissue disorder
- Cv2, crossveinless-2
- DAN, differential screening selected gene aberrative in neuroblastoma
- DSD, diaphanospondylodysostosis
- Dpp, decapentaplegic
- ECM, extracellular matrix
- ERK, extracellular signal-regulated kinases
- Extracellular matrix (ECM)
- FMF, fibrillin microfibrils
- HS, heparan sulphate
- HSPGs, heparan sulphate proteoglycans
- MAPKs, mitogen-activated protein kinases
- MGC1, megalocornea 1
- PI3K, phosphoinositide 3-kinase
- PRDC, protein related to DAN and Cerberus
- SOST, sclerostin
- SYNS1, multiple synostoses syndrome 1
- Scw, screw
- Sog, short gastrulation
- TCC, tarsal-carpal coalition syndrome
- TGF-β, transforming growth factor- β
- Tld, tolloid
- Tsg, twisted gastrulation
- VBCH, Van Buchem disease
- Xlr/Tll, xolloid-related metalloprotease
- vWC, von Willebrand factor type C
- vWD, von Willebrand factor type D
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Affiliation(s)
- Annkatrin Correns
- Department of Paediatrics and Adolescent Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, Kerpener Str. 62, 50937 Cologne, Germany
- Center for Biochemistry, Faculty of Medicine, University Hospital of Cologne, Joseph-Stelzmann-Str. 52, 50931 Cologne, Germany
| | - Laura-Marie A. Zimmermann
- Department of Paediatrics and Adolescent Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, Kerpener Str. 62, 50937 Cologne, Germany
- Center for Biochemistry, Faculty of Medicine, University Hospital of Cologne, Joseph-Stelzmann-Str. 52, 50931 Cologne, Germany
| | - Clair Baldock
- Wellcome Trust Centre for Cell-Matrix Research, University of Manchester, B.3016 Michael Smith Building, Oxford Road, M13 9PT, Manchester, United Kingdom
- Division of Cell Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Michael Smith Building, M13 9PT, Manchester, UK
| | - Gerhard Sengle
- Department of Paediatrics and Adolescent Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, Kerpener Str. 62, 50937 Cologne, Germany
- Center for Biochemistry, Faculty of Medicine, University Hospital of Cologne, Joseph-Stelzmann-Str. 52, 50931 Cologne, Germany
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Robert-Koch-Str. 21, 50931 Cologne, Germany
- Cologne Centre for Musculoskeletal Biomechanics (CCMB), Joseph-Stelzmann-Str. 9, 50931 Cologne, Germany
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Laurentino TDS, Soares RDS, Lerario AM, Marie SKN, Oba-Shinjo SM. LOXL3 Silencing Affected Cell Adhesion and Invasion in U87MG Glioma Cells. Int J Mol Sci 2021; 22:ijms22158072. [PMID: 34360836 PMCID: PMC8347215 DOI: 10.3390/ijms22158072] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 07/21/2021] [Accepted: 07/22/2021] [Indexed: 01/22/2023] Open
Abstract
Lysyl oxidase-like 3 (LOXL3), belonging to the lysyl oxidase family, is responsible for the crosslinking in collagen or elastin. The cellular localization of LOXL3 is in the extracellular space by reason of its canonical function. In tumors, the presence of LOXL3 has been associated with genomic stability, cell proliferation, and metastasis. In silico analysis has shown that glioblastoma was among tumors with the highest LOXL3 expression levels. LOXL3 silencing of U87MG cells by siRNA led to the spreading of the tumor cell surface, and the transcriptome analysis of these cells revealed an upregulation of genes coding for extracellular matrix, cell adhesion, and cytoskeleton components, convergent to an increase in cell adhesion and a decrease in cell invasion observed in functional assays. Significant correlations of LOXL3 expression with genes coding for tubulins were observed in the mesenchymal subtype in the TCGA RNA-seq dataset of glioblastoma (GBM). Conversely, genes involved in endocytosis and lysosome formation, along with MAPK-binding proteins related to focal adhesion turnover, were downregulated, which may corroborate the observed decrease in cell viability and increase in the rate of cell death. Invasiveness is a major determinant of the recurrence and poor outcome of GBM patients, and downregulation of LOXL3 may contribute to halting the tumor cell invasion.
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Affiliation(s)
- Talita de S. Laurentino
- Cellular and Molecular Biology Laboratory (LIM 15), Neurology Department, Faculdade de Medicina (FMUSP), Universidade de Sao Paulo, Sao Paulo 01246-000, SP, Brazil; (R.d.S.S.); (S.K.N.M.)
- Correspondence: (T.d.S.L.); (S.M.O.-S.); Tel.: +55-11-3061-8310 (T.d.S.L. & S.M.O.-S.)
| | - Roseli da S. Soares
- Cellular and Molecular Biology Laboratory (LIM 15), Neurology Department, Faculdade de Medicina (FMUSP), Universidade de Sao Paulo, Sao Paulo 01246-000, SP, Brazil; (R.d.S.S.); (S.K.N.M.)
| | - Antonio M. Lerario
- Department of Internal Medicine, Division of Metabolism, Endocrinology and Diabetes, University of Michigan, Ann Arbor, MI 48109, USA;
| | - Suely K. N. Marie
- Cellular and Molecular Biology Laboratory (LIM 15), Neurology Department, Faculdade de Medicina (FMUSP), Universidade de Sao Paulo, Sao Paulo 01246-000, SP, Brazil; (R.d.S.S.); (S.K.N.M.)
| | - Sueli M. Oba-Shinjo
- Cellular and Molecular Biology Laboratory (LIM 15), Neurology Department, Faculdade de Medicina (FMUSP), Universidade de Sao Paulo, Sao Paulo 01246-000, SP, Brazil; (R.d.S.S.); (S.K.N.M.)
- Correspondence: (T.d.S.L.); (S.M.O.-S.); Tel.: +55-11-3061-8310 (T.d.S.L. & S.M.O.-S.)
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50
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Lipp SN, Jacobson KR, Hains DS, Schwarderer AL, Calve S. 3D Mapping Reveals a Complex and Transient Interstitial Matrix During Murine Kidney Development. J Am Soc Nephrol 2021; 32:1649-1665. [PMID: 33875569 PMCID: PMC8425666 DOI: 10.1681/asn.2020081204] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 02/20/2021] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND The extracellular matrix (ECM) is a network of proteins and glycosaminoglycans that provides structural and biochemical cues to cells. In the kidney, the ECM is critical for nephrogenesis; however, the dynamics of ECM composition and how it relates to 3D structure during development is unknown. METHODS Using embryonic day 14.5 (E14.5), E18.5, postnatal day 3 (P3), and adult kidneys, we fractionated proteins based on differential solubilities, performed liquid chromatography-tandem mass spectrometry, and identified changes in ECM protein content (matrisome). Decellularized kidneys were stained for ECM proteins and imaged in 3D using confocal microscopy. RESULTS We observed an increase in interstitial ECM that connects the stromal mesenchyme to the basement membrane (TNXB, COL6A1, COL6A2, COL6A3) between the embryo and adult, and a transient elevation of interstitial matrix proteins (COL5A2, COL12A1, COL26A1, ELN, EMID1, FBN1, LTBP4, THSD4) at perinatal time points. Basement membrane proteins critical for metanephric induction (FRAS1, FREM2) were highest in abundance in the embryo, whereas proteins necessary for integrity of the glomerular basement membrane (COL4A3, COL4A4, COL4A5, LAMB2) were more abundant in the adult. 3D visualization revealed a complex interstitial matrix that dramatically changed over development, including the perinatal formation of fibrillar structures that appear to support the medullary rays. CONCLUSION By correlating 3D ECM spatiotemporal organization with global protein abundance, we revealed novel changes in the interstitial matrix during kidney development. This new information regarding the ECM in developing kidneys offers the potential to inform the design of regenerative scaffolds that can guide nephrogenesis in vitro.
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Affiliation(s)
- Sarah N. Lipp
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana
- Medical Scientist/Engineer Training Program, Indiana University, Indianapolis, Indiana
| | - Kathryn R. Jacobson
- Interdisciplinary Life Science Program, Purdue University, West Lafayette, Indiana
| | - David S. Hains
- Department of Pediatrics, School of Medicine, Indiana University, Riley Children’s Hospital, Indianapolis, Indiana
| | - Andrew L. Schwarderer
- Department of Pediatrics, School of Medicine, Indiana University, Riley Children’s Hospital, Indianapolis, Indiana
| | - Sarah Calve
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana
- Interdisciplinary Life Science Program, Purdue University, West Lafayette, Indiana
- Paul M. Rady Department of Mechanical Engineering, University of Colorado Boulder, Boulder, Colorado
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