1
|
Suzuki Y, Oinaka H, Nakajima H, Nampei M, Kawakita F, Miura Y, Yasuda R, Toma N, Suzuki H. Plasma Fibulin-5 Levels as an Independent Predictor of a Poor Outcome after an Aneurysmal Subarachnoid Hemorrhage. Int J Mol Sci 2022; 23:ijms232315184. [PMID: 36499510 PMCID: PMC9740042 DOI: 10.3390/ijms232315184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 11/27/2022] [Accepted: 12/01/2022] [Indexed: 12/09/2022] Open
Abstract
Aneurysmal subarachnoid hemorrhage (SAH) is a poor-outcome disease with a delayed neurological exacerbation. Fibulin-5 (FBLN5) is one of matricellular proteins, some of which have been involved in SAH pathologies. However, no study has investigated FBLN5's roles in SAH. This study was aimed at examining the relationships between serially measured plasma FBLN5 levels and neurovascular events or outcomes in 204 consecutive aneurysmal SAH patients, including 77 patients (37.7%) with poor outcomes (90-day modified Rankin Scale 3-6). Plasma FBLN5 levels were not related to angiographic vasospasm, delayed cerebral ischemia, and delayed cerebral infarction, but elevated levels were associated with severe admission clinical grades, any neurological exacerbation and poor outcomes. Receiver-operating characteristic curves indicated that the most reasonable cut-off values of plasma FBLN5, in order to differentiate 90-day poor from good outcomes, were obtained from analyses at days 4-6 for all patients (487.2 ng/mL; specificity, 61.4%; and sensitivity, 62.3%) and from analyses at days 7-9 for only non-severe patient (476.8 ng/mL; specificity, 66.0%; and sensitivity, 77.8%). Multivariate analyses revealed that the plasma FBLN5 levels were independent determinants of the 90-day poor outcomes in both all patients' and non-severe patients' analyses. These findings suggest that the delayed elevation of plasma FBLN5 is related to poor outcomes, and that FBLN5 may be a new molecular target to reveal a post-SAH pathophysiology.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | - Hidenori Suzuki
- Correspondence: ; Tel.: +81-59-232-1111; Fax: +81-59-231-5212
| | | |
Collapse
|
2
|
Ramachandra AB, Mikush N, Sauler M, Humphrey JD, Manning EP. Compromised Cardiopulmonary Function in Fibulin-5 Deficient Mice. J Biomech Eng 2022; 144:1136732. [PMID: 35171214 PMCID: PMC8990734 DOI: 10.1115/1.4053873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Indexed: 11/08/2022]
Abstract
Competent elastic fibers are critical to the function of the lung and right circulation. Murine models of elastopathies can aid in understanding the functional roles of the elastin and elastin-associated glycoproteins that constitute elastic fibers. Here, we quantify together lung and pulmonary arterial structure, function, and mechanics with right heart function in a mouse model deficient in the elastin-associated glycoprotein fibulin-5. Differences emerged as a function of genotype, sex, and arterial region. Specifically, functional studies revealed increased lung compliance in fibulin-5 deficiency consistent with a histologically observed increased alveolar disruption. Biaxial mechanical tests revealed that the primary branch pulmonary arteries exhibit decreased elastic energy storage capacity and wall stress despite only modest differences in circumferential and axial material stiffness in the fibulin-5 deficient mice. Histological quantifications confirm a lower elastic fiber content in the fibulin-5 deficient pulmonary arteries, with fragmented elastic laminae in the outer part of the wall - likely the reason for reduced energy storage. Ultrasound measurements confirm sex differences in compromised right ventricular function in the fibulin-5 deficient mice. These results reveal compromised right heart function, but opposite effects of elastic fiber dysfunction on the lung parenchyma (significantly increased compliance) and pulmonary arteries (trend toward decreased distensibility), and call for further probing of ventilation-perfusion relationships in pulmonary pathologies. Amongst many other models, fibulin-5 deficient mice can contribute to our understanding of the complex roles of elastin in pulmonary health and disease.
Collapse
Affiliation(s)
- Abhay B. Ramachandra
- Department of Biomedical Engineering, Yale University, New Haven, CT 06520
- e-mail:
| | - Nicole Mikush
- Translational Research Imaging Center, Yale School of Medicine, New Haven, CT 06520
- e-mail:
| | - Maor Sauler
- Section of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, CT 06510
- e-mail:
| | - Jay D. Humphrey
- Department of Biomedical Engineering and Vascular Biology and Therapeutics Program, Yale University, New Haven, CT 06520
- e-mail:
| | - Edward P. Manning
- Section of Pulmonary, Critical Care, and Sleep Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, CT 06510; West Haven Connecticut VA and Pulmonary and Critical Care Medicine, VA Connecticut Healthcare System, West Haven, CT 06516
- Corresponding author. e-mail:
| |
Collapse
|
3
|
Brewitz L, Onisko BC, Schofield CJ. Combined proteomic and biochemical analyses redefine the consensus sequence requirement for epidermal growth factor-like domain hydroxylation. J Biol Chem 2022; 298:102129. [PMID: 35700824 PMCID: PMC9293771 DOI: 10.1016/j.jbc.2022.102129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 06/07/2022] [Accepted: 06/09/2022] [Indexed: 11/16/2022] Open
Abstract
Epidermal growth factor-like domains (EGFDs) have important functions in cell-cell signaling. Both secreted and cell surface human EGFDs are subject to extensive modifications, including aspartate and asparagine residue C3-hydroxylations catalyzed by the 2-oxoglutarate oxygenase aspartate/asparagine-β-hydroxylase (AspH). Although genetic studies show AspH is important in human biology, studies on its physiological roles have been limited by incomplete knowledge of its substrates. Here, we redefine the consensus sequence requirements for AspH-catalyzed EGFD hydroxylation based on combined analysis of proteomic mass spectrometric data and mass spectrometry-based assays with isolated AspH and peptide substrates. We provide cellular and biochemical evidence that the preferred site of EGFD hydroxylation is embedded within a disulfide-bridged macrocycle formed of 10 amino acid residues. This definition enabled the identification of previously unassigned hydroxylation sites in three EGFDs of human fibulins as AspH substrates. A non-EGFD containing protein, lymphocyte antigen-6/plasminogen activator urokinase receptor domain containing protein 6B (LYPD6B) was shown to be a substrate for isolated AspH, but we did not observe evidence for LYPD6B hydroxylation in cells. AspH-catalyzed hydroxylation of fibulins is of particular interest given their important roles in extracellular matrix dynamics. In conclusion, these results lead to a revision of the consensus substrate requirements for AspH and expand the range of observed and potential AspH-catalyzed hydroxylation in cells, which will enable future study of the biological roles of AspH.
Collapse
Affiliation(s)
- Lennart Brewitz
- Chemistry Research Laboratory, Department of Chemistry and the Ineos Oxford Institute for Antimicrobial Research, University of Oxford, Oxford, United Kingdom.
| | | | - Christopher J Schofield
- Chemistry Research Laboratory, Department of Chemistry and the Ineos Oxford Institute for Antimicrobial Research, University of Oxford, Oxford, United Kingdom.
| |
Collapse
|
4
|
Murphy PA, Jailkhani N, Nicholas SA, Del Rosario AM, Balsbaugh JL, Begum S, Kimble A, Hynes RO. Alternative Splicing of FN (Fibronectin) Regulates the Composition of the Arterial Wall Under Low Flow. Arterioscler Thromb Vasc Biol 2021; 41:e18-e32. [PMID: 33207933 PMCID: PMC8428803 DOI: 10.1161/atvbaha.120.314013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Exposure of the arterial endothelium to low and disturbed flow is a risk factor for the erosion and rupture of atherosclerotic plaques and aneurysms. Circulating and locally produced proteins are known to contribute to an altered composition of the extracellular matrix at the site of lesions, and to contribute to inflammatory processes within the lesions. We have previously shown that alternative splicing of FN (fibronectin) protects against flow-induced hemorrhage. However, the impact of alternative splicing of FN on extracellular matrix composition remains unknown. Approach and Results: Here, we perform quantitative proteomic analysis of the matrisome of murine carotid arteries in mice deficient in the production of FN splice isoforms containing alternative exons EIIIA and EIIIB (FN-EIIIAB null) after exposure to low and disturbed flow in vivo. We also examine serum-derived and endothelial-cell contributions to the matrisome in a simplified in vitro system. We found flow-induced differences in the carotid artery matrisome that were impaired in FN-EIIIAB null mice. One of the most interesting differences was reduced recruitment of FBLN1 (fibulin-1), abundant in blood and not locally produced in the intima. This defect was validated in our in vitro assay, where FBLN1 recruitment from serum was impaired by the absence of these alternatively spliced segments. CONCLUSIONS Our results reveal the extent of the dynamic alterations in the matrisome in the acute response to low and disturbed flow and show how changes in the splicing of FN, a common response in vascular inflammation and remodeling, can affect matrix composition.
Collapse
Affiliation(s)
- Patrick A. Murphy
- Koch Institute for Integrative Cancer Research, MIT, Cambridge, MA 02139
- UCONN Health, Farmington, CT 06030
| | - Noor Jailkhani
- Koch Institute for Integrative Cancer Research, MIT, Cambridge, MA 02139
| | | | | | | | - Shahinoor Begum
- Koch Institute for Integrative Cancer Research, MIT, Cambridge, MA 02139
- Howard Hughes Medical Institute, Chevy Chase, MD 20815
| | | | - Richard O. Hynes
- Koch Institute for Integrative Cancer Research, MIT, Cambridge, MA 02139
- Howard Hughes Medical Institute, Chevy Chase, MD 20815
| |
Collapse
|
5
|
Ito S, Yokoyama U, Nakakoji T, Cooley MA, Sasaki T, Hatano S, Kato Y, Saito J, Nicho N, Iwasaki S, Umemura M, Fujita T, Masuda M, Asou T, Ishikawa Y. Fibulin-1 Integrates Subendothelial Extracellular Matrices and Contributes to Anatomical Closure of the Ductus Arteriosus. Arterioscler Thromb Vasc Biol 2020; 40:2212-2226. [PMID: 32640908 PMCID: PMC7447190 DOI: 10.1161/atvbaha.120.314729] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
OBJECTIVE The ductus arteriosus (DA) is a fetal artery connecting the aorta and pulmonary arteries. Progressive matrix remodeling, that is, intimal thickening (IT), occurs in the subendothelial region of DA to bring anatomic DA closure. IT is comprised of multiple ECMs (extracellular matrices) and migrated smooth muscle cells (SMCs). Because glycoprotein fibulin-1 binds to multiple ECMs and regulates morphogenesis during development, we investigated the role of fibulin-1 in DA closure. Approach and Results: Fibulin-1-deficient (Fbln1-/-) mice exhibited patent DA with hypoplastic IT. An unbiased transcriptome analysis revealed that EP4 (prostaglandin E receptor 4) stimulation markedly increased fibulin-1 in DA-SMCs via phospholipase C-NFκB (nuclear factor κB) signaling pathways. Fluorescence-activated cell sorting (FACS) analysis demonstrated that fibulin-1 binding protein versican was derived from DA-endothelial cells (ECs). We examined the effect of fibulin-1 on directional migration toward ECs in association with versican by using cocultured DA-SMCs and ECs. EP4 stimulation promoted directional DA-SMC migration toward ECs, which was attenuated by either silencing fibulin-1 or versican. Immunofluorescence demonstrated that fibulin-1 and versican V0/V1 were coexpressed at the IT of wild-type DA, whereas 30% of versican-deleted mice lacking a hyaluronan binding site displayed patent DA. Fibulin-1 expression was attenuated in the EP4-deficient mouse (Ptger4-/-) DA, which exhibits patent DA with hypoplastic IT, and fibulin-1 protein administration restored IT formation. In human DA, fibulin-1 and versican were abundantly expressed in SMCs and ECs, respectively. CONCLUSIONS Fibulin-1 contributes to DA closure by forming an environment favoring directional SMC migration toward the subendothelial region, at least, in part, in combination with EC-derived versican and its binding partner hyaluronan.
Collapse
Affiliation(s)
- Satoko Ito
- From the Cardiovascular Research Institute (S.I., U.Y., T.N., J.S., N.N., M.U., T.F., Y.I.), Yokohama City University, Japan.,Department of Physiology, Tokyo Medical University, Japan (S.I., U.Y., Y.K., J.S.)
| | - Utako Yokoyama
- From the Cardiovascular Research Institute (S.I., U.Y., T.N., J.S., N.N., M.U., T.F., Y.I.), Yokohama City University, Japan.,Department of Physiology, Tokyo Medical University, Japan (S.I., U.Y., Y.K., J.S.)
| | - Taichi Nakakoji
- From the Cardiovascular Research Institute (S.I., U.Y., T.N., J.S., N.N., M.U., T.F., Y.I.), Yokohama City University, Japan
| | - Marion A Cooley
- Department of Oral Biology and Diagnostic Sciences, Augusta University, GA (M.A.C.)
| | - Takako Sasaki
- Department of Biochemistry II, Oita University, Japan (T.S.)
| | - Sonoko Hatano
- Institute for Molecular Science of Medicine, Aichi Medical University, Japan (S.H.)
| | - Yuko Kato
- Department of Physiology, Tokyo Medical University, Japan (S.I., U.Y., Y.K., J.S.)
| | - Junichi Saito
- From the Cardiovascular Research Institute (S.I., U.Y., T.N., J.S., N.N., M.U., T.F., Y.I.), Yokohama City University, Japan.,Department of Physiology, Tokyo Medical University, Japan (S.I., U.Y., Y.K., J.S.)
| | - Naoki Nicho
- From the Cardiovascular Research Institute (S.I., U.Y., T.N., J.S., N.N., M.U., T.F., Y.I.), Yokohama City University, Japan
| | - Shiho Iwasaki
- Department of Pediatrics (S.I.), Yokohama City University, Japan
| | - Masanari Umemura
- From the Cardiovascular Research Institute (S.I., U.Y., T.N., J.S., N.N., M.U., T.F., Y.I.), Yokohama City University, Japan
| | - Takayuki Fujita
- From the Cardiovascular Research Institute (S.I., U.Y., T.N., J.S., N.N., M.U., T.F., Y.I.), Yokohama City University, Japan
| | - Munetaka Masuda
- Department of Surgery (M.M.), Yokohama City University, Japan
| | - Toshihide Asou
- Department of Cardiovascular Surgery, Kanagawa Children's Medical Center, Yokohama, Japan (T.A.)
| | - Yoshihiro Ishikawa
- From the Cardiovascular Research Institute (S.I., U.Y., T.N., J.S., N.N., M.U., T.F., Y.I.), Yokohama City University, Japan
| |
Collapse
|
6
|
Shin SJ, Yanagisawa H. Recent updates on the molecular network of elastic fiber formation. Essays Biochem 2019; 63:365-76. [PMID: 31395654 DOI: 10.1042/EBC20180052] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 07/12/2019] [Accepted: 07/26/2019] [Indexed: 12/20/2022]
Abstract
Elastic fibers confer elasticity and recoiling to tissues and organs and play an essential role in induction of biochemical responses in a cell against mechanical forces derived from the microenvironment. The core component of elastic fibers is elastin (ELN), which is secreted as the monomer tropoelastin from elastogenic cells, and undergoes self-aggregation, cross-linking and deposition on to microfibrils, and assemble into insoluble ELN polymers. For elastic fibers to form, a microfibril scaffold (primarily formed by fibrillin-1 (FBN1)) is required. Numerous elastic fiber-associated proteins are involved in each step of elastogenesis and they instruct and/or facilitate the elastogenesis processes. In this review, we designated five proteins as key molecules in elastic fiber formation, including ELN, FBN1, fibulin-4 (FBLN4), fibulin-5 (FBLN5), and latent TGFβ-binding protein-4 (LTBP4). ELN and FBN1 serve as building blocks for elastic fibers. FBLN5, FBLN4 and LTBP4 have been demonstrated to play crucial roles in elastogenesis through knockout studies in mice. Using these molecules as a platform and expanding the elastic fiber network through the generation of an interactome map, we provide a concise review of elastogenesis with a recent update as well as discuss various biological functions of elastic fiber-associated proteins beyond elastogenesis in vivo.
Collapse
|
7
|
Fontanil T, Mohamedi Y, Cobo T, Cal S, Obaya ÁJ. Novel Associations Within the Tumor Microenvironment: Fibulins Meet ADAMTSs. Front Oncol 2019; 9:796. [PMID: 31508361 PMCID: PMC6714394 DOI: 10.3389/fonc.2019.00796] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 08/06/2019] [Indexed: 01/08/2023] Open
Abstract
The maintenance of tissue homeostasis in any organism is a very complex and delicate process in which numerous factors intervene. Cellular homeostasis not only depends on intrinsic factors but also relies on external factors that compose the microenvironment or cellular niche. Thus, extracellular matrix (ECM) components play a very important role in maintaining cell survival and behavior, and alterations in the ECM composition can lead to different pathologies. Fibulins and ADAMTS metalloproteases play crucial roles in the upkeep and function of the ECM in different tissues. In fact, members of both of these families of secreted multidomain proteins can interact with numerous other ECM components and thus shape or regulate the molecular environment. Individual members of both families have been implicated in tumor-related processes by exhibiting either pro- or antitumor properties. Recent studies have shown both an important relation among members of both families and their participation in several pathologies, including cardiogenesis or cancer. In this review, we summarize the associations among fibulins and ADAMTSs and the effects elicited by those interactions on cellular behavior.
Collapse
Affiliation(s)
- Tania Fontanil
- Departamento de Bioquímica y Biología Molecular, Universidad de Oviedo, Oviedo, Spain.,Departamento de Investigación, Instituto Órdoñez, Oviedo, Spain.,Instituto Universitario de Oncología, IUOPA, Universidad de Oviedo, Oviedo, Spain
| | - Yamina Mohamedi
- Departamento de Bioquímica y Biología Molecular, Universidad de Oviedo, Oviedo, Spain.,Instituto Universitario de Oncología, IUOPA, Universidad de Oviedo, Oviedo, Spain
| | - Teresa Cobo
- Departamento de Cirugía y Especialidades Médico-Quirúrgicas, Instituto Asturiano de Odontología, Universidad de Oviedo, Oviedo, Spain
| | - Santiago Cal
- Departamento de Bioquímica y Biología Molecular, Universidad de Oviedo, Oviedo, Spain.,Instituto Universitario de Oncología, IUOPA, Universidad de Oviedo, Oviedo, Spain
| | - Álvaro J Obaya
- Instituto Universitario de Oncología, IUOPA, Universidad de Oviedo, Oviedo, Spain.,Departamento de Biología Funcional, Área de Fisiología, Universidad de Oviedo, Oviedo, Spain
| |
Collapse
|
8
|
Dorokhov YL, Sheshukova EV, Bialik TE, Komarova TV. Human Endogenous Formaldehyde as an Anticancer Metabolite: Its Oxidation Downregulation May Be a Means of Improving Therapy. Bioessays 2018; 40:e1800136. [PMID: 30370669 DOI: 10.1002/bies.201800136] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 09/27/2018] [Indexed: 02/06/2023]
Abstract
Malignant cells are characterized by an increased content of endogenous formaldehyde formed as a by-product of biosynthetic processes. Accumulation of formaldehyde in cancer cells is combined with activation of the processes of cellular formaldehyde clearance. These mechanisms include increased ALDH and suppressed ADH5/FDH activity, which oncologists consider poor and favorable prognostic markers, respectively. Here, the sources and regulation of formaldehyde metabolism in cancer cells are reviewed. The authors also analyze the participation of oncoproteins such as fibulins, FGFR1, HER2/neu, FBI-1, and MUC1-C in the control of genes related to formaldehyde metabolism, suggesting the existence of two mutually exclusive processes in cancer cells: 1) production and 2) oxidation and elimination of formaldehyde from the cell. The authors hypothesize that the study of the anticancer properties of disulfiram and alpha lipoic acid - which affect the balance of formaldehyde in the body - may serve as the basis of future anticancer therapy.
Collapse
Affiliation(s)
- Yuri L Dorokhov
- N.I. Vavilov Institute of General Genetics of RAS, 119991, Moscow, Russia.,A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991, Moscow, Russia
| | | | - Tatiana E Bialik
- N.N. Blokhin National Medical Research Center of Oncology, 115478, Moscow, Russia
| | - Tatiana V Komarova
- N.I. Vavilov Institute of General Genetics of RAS, 119991, Moscow, Russia.,A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119991, Moscow, Russia
| |
Collapse
|
9
|
Knüppel L, Heinzelmann K, Lindner M, Hatz R, Behr J, Eickelberg O, Staab-Weijnitz CA. FK506-binding protein 10 (FKBP10) regulates lung fibroblast migration via collagen VI synthesis. Respir Res 2018; 19:67. [PMID: 29673351 PMCID: PMC5909279 DOI: 10.1186/s12931-018-0768-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 04/02/2018] [Indexed: 02/07/2023] Open
Abstract
Background In idiopathic pulmonary fibrosis (IPF), fibroblasts gain a more migratory phenotype and excessively secrete extracellular matrix (ECM), ultimately leading to alveolar scarring and progressive dyspnea. Here, we analyzed the effects of deficiency of FK506-binding protein 10 (FKBP10), a potential IPF drug target, on primary human lung fibroblast (phLF) adhesion and migration. Methods Using siRNA, FKBP10 expression was inhibited in phLF in absence or presence of 2ng/ml transforming growth factor-β1 (TGF-β1) and 0.1mM 2-phosphoascorbate. Effects on cell adhesion and migration were monitored by an immunofluorescence (IF)-based attachment assay, a conventional scratch assay, and single cell tracking by time-lapse microscopy. Effects on expression of key players in adhesion dynamics and migration were analyzed by qPCR and Western Blot. Colocalization was evaluated by IF microscopy and by proximity ligation assays. Results FKBP10 knockdown significantly attenuated adhesion and migration of phLF. Expression of collagen VI was decreased, while expression of key components of the focal adhesion complex was mostly upregulated. The effects on migration were 2-phosphoascorbate-dependent, suggesting collagen synthesis as the underlying mechanism. FKBP10 colocalized with collagen VI and coating culture dishes with collagen VI, and to a lesser extent with collagen I, abolished the effect of FKBP10 deficiency on migration. Conclusions These findings show, to our knowledge for the first time, that FKBP10 interacts with collagen VI and that deficiency of FKBP10 reduces phLF migration mainly by downregulation of collagen VI synthesis. The results strengthen FKBP10 as an important intracellular regulator of ECM remodeling and support the concept of FKBP10 as drug target in IPF.
Collapse
Affiliation(s)
- Larissa Knüppel
- Comprehensive Pneumology Center, Ludwig-Maximilians-Universität and Helmholtz Zentrum Munich, Max-Lebsche-Platz 31, 81377, Munich, Germany.,Member of the German Center of Lung Research (DZL), Munich, Germany
| | - Katharina Heinzelmann
- Comprehensive Pneumology Center, Ludwig-Maximilians-Universität and Helmholtz Zentrum Munich, Max-Lebsche-Platz 31, 81377, Munich, Germany.,Member of the German Center of Lung Research (DZL), Munich, Germany
| | | | - Rudolf Hatz
- Asklepios Fachkliniken Munich-Gauting, Munich, Germany.,Thoraxchirurgisches Zentrum, Klinik für Allgemeine-, Viszeral-, Transplantations-, Gefäß- und Thoraxchirurgie, Klinikum Großhadern, Ludwig-Maximilians-Universität, Munich, Germany
| | - Jürgen Behr
- Asklepios Fachkliniken Munich-Gauting, Munich, Germany.,Medizinische Klinik und Poliklinik V, Klinikum der Ludwig-Maximilians-Universität, Munich, Germany
| | - Oliver Eickelberg
- Comprehensive Pneumology Center, Ludwig-Maximilians-Universität and Helmholtz Zentrum Munich, Max-Lebsche-Platz 31, 81377, Munich, Germany.,Member of the German Center of Lung Research (DZL), Munich, Germany.,Colorado Anschutz Medical Campus, Pulmonary and Critical Care Medicine University, Denver, Colorado, USA
| | - Claudia A Staab-Weijnitz
- Comprehensive Pneumology Center, Ludwig-Maximilians-Universität and Helmholtz Zentrum Munich, Max-Lebsche-Platz 31, 81377, Munich, Germany. .,Member of the German Center of Lung Research (DZL), Munich, Germany.
| |
Collapse
|
10
|
Fontanil T, Álvarez-Teijeiro S, Villaronga MÁ, Mohamedi Y, Solares L, Moncada-Pazos A, Vega JA, García-Suárez O, Pérez-Basterrechea M, García-Pedrero JM, Obaya AJ, Cal S. Cleavage of Fibulin-2 by the aggrecanases ADAMTS-4 and ADAMTS-5 contributes to the tumorigenic potential of breast cancer cells. Oncotarget 2017; 8:13716-13729. [PMID: 28099917 PMCID: PMC5355132 DOI: 10.18632/oncotarget.14627] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 01/04/2017] [Indexed: 11/30/2022] Open
Abstract
Fibulin-2 participates in the assembly of extracellular matrix components through interactions with multiple ligands and promotes contacts between cells and their surrounding environment. Consequently, identification of processes that could lead to an altered Fibulin-2 could have a major impact not only in the maintenance of tissue architecture and morphogenesis but also in pathological situations including cancer. Herein, we have investigated the ability of the secreted metalloproteases ADAMTS-4 and ADAMTS-5 to digest Fibulin-2. Using in vitro approaches and cultured breast cancer cell lines we demonstrate that Fibulin-2 is a better substrate for ADAMTS-5 than it is for ADAMTS-4. Moreover, Fibulin-2 degradation is associated to an enhancement of the invasive potential of T47D, MCF-7 and SK-BR-3 cells. We have also found that conditioned medium from MCF-7 cells that simultaneously overexpress Fibulin-2 and ADAMTS-5 significantly induced the migratory and invasive ability of normal breast fibroblasts using 3D collagen matrices. Immunohistochemical analysis highlights the close proximity or partial overlap of both Fibulin-2 and ADAMTS-5 in breast tumor samples. Additionally, proteolytic products derived from a potential degradation of Fibulin-2 by ADAMTS-5 were also identified in these samples. Finally, we also show that the cleavage of Fibulin-2 by ADAMTS-5 is counteracted by ADAMTS-12, a metalloprotease that interacts with Fibulin-2. Overall, our results provide direct evidence indicating that Fibulin-2 is a novel substrate of ADAMTS-5 and that this proteolysis could alter the cellular microenvironment affecting the balance between protumor and antitumor effects associated to both Fibulin-2 and the ADAMTSs metalloproteases.
Collapse
Affiliation(s)
- Tania Fontanil
- Departamento de Bioquímica y Biología Molecular, Universidad de Oviedo, Asturias Spain.,Instituto Universitario de Oncología, IUOPA, Universidad de Oviedo, Asturias, Spain
| | - Saúl Álvarez-Teijeiro
- Instituto Universitario de Oncología, IUOPA, Universidad de Oviedo, Asturias, Spain.,Hospital Universitario Central de Asturias, Universidad de Oviedo, Asturias, and CIBERONC, Madrid, Spain
| | - M Ángeles Villaronga
- Instituto Universitario de Oncología, IUOPA, Universidad de Oviedo, Asturias, Spain.,Hospital Universitario Central de Asturias, Universidad de Oviedo, Asturias, and CIBERONC, Madrid, Spain
| | - Yamina Mohamedi
- Departamento de Bioquímica y Biología Molecular, Universidad de Oviedo, Asturias Spain.,Instituto Universitario de Oncología, IUOPA, Universidad de Oviedo, Asturias, Spain
| | - Laura Solares
- Departamento de Bioquímica y Biología Molecular, Universidad de Oviedo, Asturias Spain.,Instituto Universitario de Oncología, IUOPA, Universidad de Oviedo, Asturias, Spain
| | - Angela Moncada-Pazos
- Departamento de Bioquímica y Biología Molecular, Universidad de Oviedo, Asturias Spain.,Instituto Universitario de Oncología, IUOPA, Universidad de Oviedo, Asturias, Spain.,Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, United Kingdom
| | - José A Vega
- Department of Morphology and Cellular Biology, Faculty of Medicine, University of Oviedo, Oviedo, Spain.,Facultad de Ciencias de la Salud, Universidad Autónoma de Chile, Chile
| | - Olivia García-Suárez
- Department of Morphology and Cellular Biology, Faculty of Medicine, University of Oviedo, Oviedo, Spain
| | - Marcos Pérez-Basterrechea
- Unidad de Trasplantes, Terapia Celular y Medicina Regenerativa, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Juana M García-Pedrero
- Instituto Universitario de Oncología, IUOPA, Universidad de Oviedo, Asturias, Spain.,Hospital Universitario Central de Asturias, Universidad de Oviedo, Asturias, and CIBERONC, Madrid, Spain
| | - Alvaro J Obaya
- Instituto Universitario de Oncología, IUOPA, Universidad de Oviedo, Asturias, Spain.,Departamento de Biología Funcional, Area de Fisiología, Universidad de Oviedo, Asturias, Spain
| | - Santiago Cal
- Departamento de Bioquímica y Biología Molecular, Universidad de Oviedo, Asturias Spain.,Instituto Universitario de Oncología, IUOPA, Universidad de Oviedo, Asturias, Spain
| |
Collapse
|
11
|
Uehara E, Hokazono H, Hida M, Sasaki T, Yoshioka H, Matsuo N. GABA promotes elastin synthesis and elastin fiber formation in normal human dermal fibroblasts (HDFs). Biosci Biotechnol Biochem 2017; 81:1198-1205. [PMID: 28485217 DOI: 10.1080/09168451.2017.1290518] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The multiple physiological effects of γ-aminobutyric acid (GABA) as a functional food component have been recently reported. We previously reported that GABA upregulated the expression of type I collagen in human dermal fibroblasts (HDFs), and that oral administration of GABA significantly increased skin elasticity. However, details of the regulatory mechanism still remain unknown. In this study, we further examined the effects of GABA on elastin synthesis and elastin fiber formation in HDFs. Real-time PCR indicated that GABA significantly increased the expression of tropoelastin transcript in a dose-dependent manner. Additionally, the expression of fibrillin-1, fibrillin-2, and fibulin-5/DANCE, but not lysyl oxidase and latent transforming factor-β-binding protein 4, were also significantly increased in HDFs. Finally, immunohistochemical analysis confirmed that treatment with GABA dramatically increased the formation of elastic fibers in HDFs. Taken together, our results showed that GABA improves skin elasticity in HDFs by upregulating elastin synthesis and elastin fiber formation.
Collapse
Affiliation(s)
| | | | - Mariko Hida
- b Faculty of Medicine, Department of Matrix Medicine , Oita University , Yufu , Japan
| | - Takako Sasaki
- b Faculty of Medicine, Department of Matrix Medicine , Oita University , Yufu , Japan
| | - Hidekatsu Yoshioka
- b Faculty of Medicine, Department of Matrix Medicine , Oita University , Yufu , Japan
| | - Noritaka Matsuo
- b Faculty of Medicine, Department of Matrix Medicine , Oita University , Yufu , Japan
| |
Collapse
|
12
|
Abstract
A characteristic feature of liver cirrhosis is the accumulation of large amounts of connective tissue with the prevailing content of type I collagen. Elastin is a minor connective tissue component in normal liver but it is actively synthesized by hepatic stellate cells and portal fibroblasts in diseased liver. The accumulation of elastic fibers in later stages of liver fibrosis may contribute to the decreasing reversibility of the disease with advancing time. Elastin is formed by polymerization of tropoelastin monomers. It is an amorphous protein highly resistant to the action of proteases that forms the core of elastic fibers. Microfibrils surrounding the core are composed of fibrillins that bind a number of proteins involved in fiber formation. They include microfibril-associated glycoproteins (MAGPs), microfibrillar-associated proteins (MFAPs) and fibulins. Lysyl oxidase (LOX) and lysyl oxidase-like proteins (LOXLs) are responsible for tropoelastin cross-linking and polymerization. TGF-β complexes attached to microfibrils release this cytokine and influence the behavior of the cells in the neighborhood. The role of TGF-β as the main profibrotic cytokine in the liver is well-known and the release of the cytokines of TGF-β superfamily from their storage in elastic fibers may affect the course of fibrosis. Elastic fibers are often studied in the tissues where they provide elasticity and resilience but their role is no longer viewed as purely mechanical. Tropoelastin, elastin polymer and elastin peptides resulting from partial elastin degradation influence fibroblastic and inflammatory cells as well as angiogenesis. A similar role may be performed by elastin in the liver. This article reviews the results of the research of liver elastic fibers on the background of the present knowledge of elastin biochemistry and physiology. The regulation of liver elastin synthesis and degradation may be important for the outcome of liver fibrosis.
Collapse
Affiliation(s)
- Jiří Kanta
- Department of Medical Biochemistry, Faculty of Medicine in Hradec Kralove, Charles University in Prague Hradec Kralove, Czechia
| |
Collapse
|
13
|
Yanagisawa H, Schluterman MK, Brekken RA. Fibulin-5, an integrin-binding matricellular protein: its function in development and disease. J Cell Commun Signal 2009; 3:337-47. [PMID: 19798595 PMCID: PMC2778585 DOI: 10.1007/s12079-009-0065-3] [Citation(s) in RCA: 106] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2009] [Accepted: 08/31/2009] [Indexed: 01/03/2023] Open
Abstract
Interactions between the extracellular matrix (ECM) and cells are critical in embryonic development, tissue homeostasis, physiological remodeling, and tumorigenesis. Matricellular proteins, a group of ECM components, mediate cell-ECM interactions. One such molecule, Fibulin-5 is a 66-kDa glycoprotein secreted by various cell types, including vascular smooth muscle cells (SMCs), fibroblasts, and endothelial cells. Fibulin-5 contributes to the formation of elastic fibers by binding to structural components including tropoelastin and fibrillin-1, and to cross-linking enzymes, aiding elastic fiber assembly. Mice deficient in the fibulin-5 gene (Fbln5) exhibit systemic elastic fiber defects with manifestations of loose skin, tortuous aorta, emphysematous lung and genital prolapse. Although Fbln5 expression is down-regulated after birth, following the completion of elastic fiber formation, expression is reactivated upon tissue injury, affecting diverse cellular functions independent of its elastogenic function. Fibulin-5 contains an evolutionally conserved arginine-glycine-aspartic acid (RGD) motif in the N-terminal region, which mediates binding to a subset of integrins, including alpha5beta1, alphavbeta3, and alphavbeta5. Fibulin-5 enhances substrate attachment of endothelial cells, while inhibiting migration and proliferation in a cell type- and context-dependent manner. The antagonistic function of fibulin-5 in angiogenesis has been demonstrated in vitro and in vivo; fibulin-5 may block angiogenesis by inducing the anti-angiogenic molecule thrompospondin-1, by antagonizing VEGF(165)-mediated signaling, and/or by antagonizing fibronectin-mediated signaling through directly binding and blocking the alpha5beta1 fibronectin receptor. The overall effect of fibulin-5 on tumor growth depends on the balance between the inhibitory property of fibulin-5 on angiogenesis and the direct effect of fibulin-5 on proliferation and migration of tumor cells. However, the effect of tumor-derived versus host microenvironment-derived fibulin-5 remains to be evaluated.
Collapse
Affiliation(s)
- Hiromi Yanagisawa
- Department of Molecular Biology, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390-9148 USA
| | - Marie K. Schluterman
- Department of Surgery, Hamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390-8593 USA
| | - Rolf A. Brekken
- Department of Surgery, Hamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd., Dallas, TX 75390-8593 USA
| |
Collapse
|
14
|
Abstract
Malignant gliomas are highly invasive tumors with an almost invariably rapid and lethal outcome. Surgery and chemoradiotherapy fail to remove resistant tumor cells that disperse within normal tissue, which are a major cause for disease progression and therapy failure. Infiltration of the neural parenchyma is a distinctive property of malignant gliomas compared with other solid tumors. Thus, glioma cells are thought to produce unique molecular changes that remodel the neural extracellular matrix and form a microenvironment permissive for their motility. Here, we describe the unique expression and proinvasive role of fibulin-3, a mesenchymal matrix protein specifically upregulated in gliomas. Fibulin-3 is downregulated in peripheral tumors and is thought to inhibit tumor growth. However, we found fibulin-3 highly upregulated in gliomas and cultured glioma cells, although the protein was undetectable in normal brain or cultured astrocytes. Overexpression and knockdown experiments revealed that fibulin-3 did not seem to affect glioma cell morphology or proliferation, but enhanced substrate-specific cell adhesion and promoted cell motility and dispersion in organotypic cultures. Moreover, orthotopic implantation of fibulin-3-overexpressing glioma cells resulted in diffuse tumors with increased volume and rostrocaudal extension compared with controls. Tumors and cultured cells overexpressing fibulin-3 also showed elevated expression and activity of matrix metalloproteases, such as MMP-2/MMP-9 and ADAMTS-5. Taken together, our results suggest that fibulin-3 has a unique expression and protumoral role in gliomas, and could be a potential target against tumor progression. Strategies against this glioma-specific matrix component could disrupt invasive mechanisms and restrict the dissemination of these tumors.
Collapse
Affiliation(s)
- Bin Hu
- Center for Molecular Neurobiology, The Ohio State University Medical Center and James Comprehensive Cancer Center, Columbus Ohio
| | - Keerthi K. Thirtamara-Rajamani
- Center for Molecular Neurobiology, The Ohio State University Medical Center and James Comprehensive Cancer Center, Columbus Ohio
| | - Hosung Sim
- Center for Molecular Neurobiology, The Ohio State University Medical Center and James Comprehensive Cancer Center, Columbus Ohio
| | - Mariano S. Viapiano
- Center for Molecular Neurobiology, The Ohio State University Medical Center and James Comprehensive Cancer Center, Columbus Ohio
- Department of Neurological Surgery, The Ohio State University Medical Center and James Comprehensive Cancer Center, Columbus Ohio
| |
Collapse
|
15
|
Kielty CM, Stephan S, Sherratt MJ, Williamson M, Shuttleworth CA. Applying elastic fibre biology in vascular tissue engineering. Philos Trans R Soc Lond B Biol Sci 2007; 362:1293-312. [PMID: 17588872 PMCID: PMC2440413 DOI: 10.1098/rstb.2007.2134] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
For the treatment of vascular disease, the major cause of death in Western society, there is an urgent need for tissue-engineered, biocompatible, small calibre artery substitutes that restore biological function. Vascular tissue engineering of such grafts involves the development of compliant synthetic or biomaterial scaffolds that incorporate vascular cells and extracellular matrix. Elastic fibres are major structural elements of arterial walls that can enhance vascular graft design and patency. In blood vessels, they endow vessels with the critical property of elastic recoil. They also influence vascular cell behaviour through direct interactions and by regulating growth factor activation. This review addresses physiological elastic fibre assembly and contributions to vessel structure and function, and how elastic fibre biology is now being exploited in small diameter vascular graft design.
Collapse
Affiliation(s)
- Cay M Kielty
- Faculty of Life Sciences, Michael Smith Building, University of Manchester, Oxford Road, Manchester M13 9PT, UK.
| | | | | | | | | |
Collapse
|
16
|
Greene LM, Twal WO, Duffy MJ, McDermott EW, Hill AD, O'Higgins NJ, McCann AH, Dervan PA, Argraves WS, Gallagher WM. Elevated expression and altered processing of fibulin-1 protein in human breast cancer. Br J Cancer 2003; 88:871-8. [PMID: 12644824 PMCID: PMC2377096 DOI: 10.1038/sj.bjc.6600802] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
The extracellular matrix protein fibulin-1 suppresses the motility and invasiveness of a variety of tumour cell types in vitro as well as the growth of fibrosarcoma tumours in nude mice. In this study, fibulin-1 protein expression in breast carcinoma specimens and normal breast tissue was evaluated immunohistologically. Fibulin-1 protein expression was also semiquantitatively assessed by immunoblot analysis in a collection of normal breast tissues (n=18), benign tumours (n=5) and breast carcinomas (n=39). In normal breast tissue, fibulin-1 protein expression predominated in the ductal epithelium and underlying myoepithelium, with weaker staining evident in the loose connective surrounding the ducts. Examination of breast carcinomas revealed that the tumour cells also expressed fibulin-1 protein. The level of mature fibulin-1 polypeptide (100 kDa) was higher in the breast carcinoma specimens as compared to normal breast tissue (Mann-Whitney U-test, P=0.0005). In addition to the mature fibulin-1 polypeptide, several smaller sized polypeptides of 55, 50 and 25 kDa were detected using monoclonal antibodies reactive towards an epitope located at the N-terminus of fibulin-1. The immunoreactive 50 kDa polypeptide was detected more frequently in breast carcinoma specimens than in normal breast tissue (chi(2)=17.22, P<0.0001). Furthermore, the ratio of the 50 kDa fragment to the mature fibulin-1 polypeptide correlated with the level of oestrogen receptor alpha (Spearman correlation coefficient, rs=0.49, P<0.003, n=36) and progesterone receptor (rs=0.43, P=0.008, n=36) expression in the tumour specimens. Taken together, these findings indicate that elevated expression and altered processing of fibulin-1 is associated with human breast cancer.
Collapse
Affiliation(s)
- L M Greene
- Department of Pharmacology, Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Ireland
| | - W O Twal
- Department of Cell Biology and Anatomy, Medical University of South Carolina, 173 Ashley Avenue, Charleston, SC, USA
| | - M J Duffy
- Department of Nuclear Medicine, St Vincent's University Hospital, Elm Park, Dublin 4, Ireland
| | - E W McDermott
- Department of Surgery, St Vincent's University Hospital, Elm Park, Dublin 4, Ireland
| | - A D Hill
- Department of Surgery, St Vincent's University Hospital, Elm Park, Dublin 4, Ireland
| | - N J O'Higgins
- Department of Surgery, St Vincent's University Hospital, Elm Park, Dublin 4, Ireland
| | - A H McCann
- Department of Pathology, Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Ireland
- Mater Hospital, Eccles Street, Dublin 7, Ireland
| | - P A Dervan
- Department of Pathology, Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Ireland
- Mater Hospital, Eccles Street, Dublin 7, Ireland
| | - W S Argraves
- Department of Cell Biology and Anatomy, Medical University of South Carolina, 173 Ashley Avenue, Charleston, SC, USA
| | - W M Gallagher
- Department of Pharmacology, Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Ireland
- Department of Pharmacology, Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Ireland. E-mail:
| |
Collapse
|