1
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Dutta Gupta S, Ta M. ADAMTS13 regulates angiogenic markers via Ephrin/Eph signaling in human mesenchymal stem cells under serum-deprivation stress. Sci Rep 2024; 14:560. [PMID: 38177376 PMCID: PMC10766954 DOI: 10.1038/s41598-023-51079-z] [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: 08/09/2023] [Accepted: 12/30/2023] [Indexed: 01/06/2024] Open
Abstract
Mesenchymal stem cells (MSCs) are known to facilitate angiogenesis and promote neo-vascularization via secretion of trophic factors. Here, we explored the molecular mechanism adopted by ADAMTS13 in modulating the expression of some key angiogenic markers in human umbilical cord-derived MSCs under serum-deprivation stress. Wharton's jelly MSCs (WJ-MSCs) were isolated from the perivascular region of human umbilical cords by explant culture. ADAMTS13 was upregulated at both mRNA and protein levels in WJ-MSCs under serum-deprivation stress. Correspondingly, some key angiogenic markers were also seen to be upregulated. By screening signaling pathways, p38 and JNK pathways were identified as negative and positive regulators for expression of ADAMTS13, and the angiogenic markers, respectively. Our results also indicated the Notch pathway and p53 as other probable partners modulating the expression of ADAMTS13 and the angiogenic markers. Knockdown of ADAMTS13 using siRNA led to reversal in the expression of these angiogenic markers. Further, ADAMTS13 was shown to act via the EphrinB2/EphB4 axis followed by ERK signaling to control expression of the angiogenic markers. Interestingly, stronger expression levels were noted for ADAMTS13, VEGF and PDGF under a more stringent nutrient stress condition. Thus, we highlight a novel role of ADAMTS13 in WJ-MSCs under nutrient stress condition.
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Affiliation(s)
- Srishti Dutta Gupta
- Department of Biological Sciences, Indian Institute of Science Education and Research, Kolkata (IISER Kolkata), Mohanpur Campus, Dist: Nadia, Kolkata, West Bengal, 741246, India
| | - Malancha Ta
- Department of Biological Sciences, Indian Institute of Science Education and Research, Kolkata (IISER Kolkata), Mohanpur Campus, Dist: Nadia, Kolkata, West Bengal, 741246, India.
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2
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Li Y, Khandia R, Papadakis M, Alexiou A, Simonov AN, Khan AA. An investigation of codon usage pattern analysis in pancreatitis associated genes. BMC Genom Data 2022; 23:81. [PMID: 36434531 PMCID: PMC9700901 DOI: 10.1186/s12863-022-01089-z] [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: 02/13/2022] [Accepted: 10/10/2022] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND Pancreatitis is an inflammatory disorder resulting from the autoactivation of trypsinogen in the pancreas. The genetic basis of the disease is an old phenomenon, and evidence is accumulating for the involvement of synonymous/non-synonymous codon variants in disease initiation and progression. RESULTS The present study envisaged a panel of 26 genes involved in pancreatitis for their codon choices, compositional analysis, relative dinucleotide frequency, nucleotide disproportion, protein physical properties, gene expression, codon bias, and interrelated of all these factors. In this set of genes, gene length was positively correlated with nucleotide skews and codon usage bias. Codon usage of any gene is dependent upon its AT and GC component; however, AGG, CGT, and CGA encoding for Arg, TCG for Ser, GTC for Val, and CCA for Pro were independent of nucleotide compositions. In addition, Codon GTC showed a correlation with protein properties, isoelectric point, instability index, and frequency of basic amino acids. We also investigated the effect of various evolutionary forces in shaping the codon usage choices of genes. CONCLUSIONS This study will enable us to gain insight into the molecular signatures associated with the disease that might help identify more potential genes contributing to enhanced risk for pancreatitis. All the genes associated with pancreatitis are generally associated with physiological function, and mutations causing loss of function, over or under expression leads to an ailment. Therefore, the present study attempts to envisage the molecular signature in a group of genes that lead to pancreatitis in case of malfunction.
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Affiliation(s)
- Yuanyang Li
- Third-Grade Pharmacological Laboratory On Chinese Medicine Approved By State Administration of Traditional Chinese Medicine, Medical College of China Three Gorges, Yichang, China ,grid.254148.e0000 0001 0033 6389College of Medical Science, China Three Gorges University, Yichang, China
| | - Rekha Khandia
- grid.411530.20000 0001 0694 3745Department of Biochemistry and Genetics, Barkatullah University, Bhopal, MP 462026 India
| | - Marios Papadakis
- grid.412581.b0000 0000 9024 6397Department of Surgery II, University Hospital Witten-Herdecke, University of Witten-Herdecke, Heusnerstrasse 40, 42283 Wuppertal, Germany
| | - Athanasios Alexiou
- Department of Science and Engineering, Novel Global Community Educational Foundation, Hebersham, Australia ,AFNP Med Austria, Vienna, Austria
| | | | - Azmat Ali Khan
- grid.56302.320000 0004 1773 5396Pharmaceutical Biotechnology Laboratory, Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, 11451 Saudi Arabia
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3
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Théret N, Bouezzeddine F, Azar F, Diab-Assaf M, Legagneux V. ADAM and ADAMTS Proteins, New Players in the Regulation of Hepatocellular Carcinoma Microenvironment. Cancers (Basel) 2021; 13:cancers13071563. [PMID: 33805340 PMCID: PMC8037375 DOI: 10.3390/cancers13071563] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 03/23/2021] [Accepted: 03/25/2021] [Indexed: 02/07/2023] Open
Abstract
Simple Summary Members of the adamalysin family are multi-domain proteins involved in many cancer-related functions. In this review, we will examine the literature on the involvement of adamalysins in hepatocellular carcinoma progression and their importance in the tumor microenvironment where they regulate the inflammatory response and the epithelial–mesenchymal transition. We complete this review with an analysis of adamalysin expression in a large cohort of patients with hepatocellular carcinoma from The Cancer Genome Atlas (TCGA) database. These original results give a new insight into the involvement of all adamalysins in the primary liver cancer. Abstract The tumor microenvironment plays a major role in tumor growth, invasion and resistance to chemotherapy, however understanding how all actors from microenvironment interact together remains a complex issue. The tumor microenvironment is classically represented as three closely connected components including the stromal cells such as immune cells, fibroblasts, adipocytes and endothelial cells, the extracellular matrix (ECM) and the cytokine/growth factors. Within this space, proteins of the adamalysin family (ADAM for a disintegrin and metalloproteinase; ADAMTS for ADAM with thrombospondin motifs; ADAMTSL for ADAMTS-like) play critical roles by modulating cell–cell and cell–ECM communication. During last decade, the implication of adamalysins in the development of hepatocellular carcinoma (HCC) has been supported by numerous studies however the functional characterization of most of them remain unsettled. In the present review we propose both an overview of the literature and a meta-analysis of adamalysins expression in HCC using data generated by The Cancer Genome Atlas (TCGA) Research Network.
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Affiliation(s)
- Nathalie Théret
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en santé, Environnement et Travail)-UMR_S1085, University of Rennes 1, 35000 Rennes, France; (F.A.); (V.L.)
- Correspondence:
| | - Fidaa Bouezzeddine
- Molecular Cancer and Pharmaceutical Biology Laboratory, Faculty of Sciences II, Lebanese University Fanar, 1500 Beirut, Lebanon; (F.B.); (M.D.-A.)
| | - Fida Azar
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en santé, Environnement et Travail)-UMR_S1085, University of Rennes 1, 35000 Rennes, France; (F.A.); (V.L.)
| | - Mona Diab-Assaf
- Molecular Cancer and Pharmaceutical Biology Laboratory, Faculty of Sciences II, Lebanese University Fanar, 1500 Beirut, Lebanon; (F.B.); (M.D.-A.)
| | - Vincent Legagneux
- Univ Rennes, Inserm, EHESP, Irset (Institut de Recherche en santé, Environnement et Travail)-UMR_S1085, University of Rennes 1, 35000 Rennes, France; (F.A.); (V.L.)
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4
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Kempfer AC, Powazniak Y, López IR, Sánchez-Luceros A, Woods AI, Lazzari MA, Calderazzo JC. A new ADAMTS13 missense mutation (D1362V) in thrombotic thrombocytopenic purpura diagnosed during pregnancy. Thromb Haemost 2017; 108:401-3. [DOI: 10.1160/th11-11-0783] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2011] [Accepted: 04/13/2012] [Indexed: 11/05/2022]
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5
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Peng H, Yang Y, Zhe S, Wang J, Gribskov M, Qi Y. DEIsoM: a hierarchical Bayesian model for identifying differentially expressed isoforms using biological replicates. Bioinformatics 2017; 33:3018-3027. [PMID: 28595376 PMCID: PMC5870796 DOI: 10.1093/bioinformatics/btx357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Accepted: 06/02/2017] [Indexed: 11/18/2022] Open
Abstract
Motivation High-throughput mRNA sequencing (RNA-Seq) is a powerful tool for quantifying gene expression. Identification of transcript isoforms that are differentially expressed in different conditions, such as in patients and healthy subjects, can provide insights into the molecular basis of diseases. Current transcript quantification approaches, however, do not take advantage of the shared information in the biological replicates, potentially decreasing sensitivity and accuracy. Results We present a novel hierarchical Bayesian model called Differentially Expressed Isoform detection from Multiple biological replicates (DEIsoM) for identifying differentially expressed (DE) isoforms from multiple biological replicates representing two conditions, e.g. multiple samples from healthy and diseased subjects. DEIsoM first estimates isoform expression within each condition by (1) capturing common patterns from sample replicates while allowing individual differences, and (2) modeling the uncertainty introduced by ambiguous read mapping in each replicate. Specifically, we introduce a Dirichlet prior distribution to capture the common expression pattern of replicates from the same condition, and treat the isoform expression of individual replicates as samples from this distribution. Ambiguous read mapping is modeled as a multinomial distribution, and ambiguous reads are assigned to the most probable isoform in each replicate. Additionally, DEIsoM couples an efficient variational inference and a post-analysis method to improve the accuracy and speed of identification of DE isoforms over alternative methods. Application of DEIsoM to an hepatocellular carcinoma (HCC) dataset identifies biologically relevant DE isoforms. The relevance of these genes/isoforms to HCC are supported by principal component analysis (PCA), read coverage visualization, and the biological literature. Availability and implementation The software is available at https://github.com/hao-peng/DEIsoM Supplementary information Supplementary data are available at Bioinformatics online.
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Affiliation(s)
| | - Yifan Yang
- Department of Computer Science.,Department of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA
| | | | - Jian Wang
- Eli Lilly and Company, Indianapolis, IN 46285, USA
| | - Michael Gribskov
- Department of Computer Science.,Department of Biological Sciences, Purdue University, West Lafayette, IN 47907, USA
| | - Yuan Qi
- Department of Computer Science.,Department of Statistics, Purdue University, West Lafayette, IN 47907, USA
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6
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Ekaney ML, Bockmeyer CL, Sossdorf M, Reuken PA, Conradi F, Schuerholz T, Blaess MF, Friedman SL, Lösche W, Bauer M, Claus RA. Preserved Expression of mRNA Coding von Willebrand Factor-Cleaving Protease ADAMTS13 by Selenite and Activated Protein C. Mol Med 2015; 21:355-63. [PMID: 25860876 DOI: 10.2119/molmed.2014.00202] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Accepted: 04/03/2015] [Indexed: 12/16/2022] Open
Abstract
In sepsis, the severity-dependent decrease of von Willebrand factor (VWF)-inactivating protease, a disintegrin and metalloproteinase with thrombospondin motifs 13 (ADAMTS13), results in platelet aggregation and consumption, leading to sepsis-associated thrombotic microangiopathy (TMA) and organ failure. Previous reports assessing its functional deficiency have pinpointed involvement of autoantibodies or mutations to propagate thrombotic thrombocytopenic purpura (TTP). However, mechanisms of acquired ADAMTS13 deficiency during host response remain unclear. To enhance understanding of ADAMTS13 deficiency in sepsis, we evaluated changes in expression of mRNA coding ADAMTS13 during septic conditions using primary cellular sources of the protease. We hypothesized that proinflammatory cytokines and constituents of serum from septic patients affect the transcriptional level of ADAMTS13 in vitro, and previously recommended therapeutic agents as adjunctive therapy for sepsis interact therewith. Cultured hepatic stellate cells (HSCs), endothelial cells (HMEC) and human precision-cut liver slices as an ex vivo model were stimulated with sepsis prototypic cytokines, bacterial endotoxin and pooled serum obtained from septic patients. Stimulation resulted in a significant decrease in ADAMTS13 mRNA between 10% and 80% of basal transcriptional rates. Costimulation of selenite or recombinant activated protein C (APC) with serum prevented ADAMTS13 decrease in HSCs and increased ADAMTS13 transcripts in HMEC. In archived clinical samples, the activity of ADAMTS13 in septic patients treated with APC (n = 5) increased with an accompanying decrease in VWF propeptide as surrogate for improved endothelial function. In conclusion, proinflammatory conditions of sepsis repress mRNA coding ADAMTS13 and the ameliorating effect by selenite and APC may support the concept for identification of beneficial mechanisms triggered by these drugs at a molecular level.
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Affiliation(s)
- Michael L Ekaney
- Center for Sepsis Control and Care, Jena University Hospital, Jena, Germany.,Clinic for Anaesthesiology and Intensive Care Medicine, Jena University Hospital, Jena, Germany
| | | | - Maik Sossdorf
- Center for Sepsis Control and Care, Jena University Hospital, Jena, Germany.,Clinic for Anaesthesiology and Intensive Care Medicine, Jena University Hospital, Jena, Germany
| | - Philipp A Reuken
- Center for Sepsis Control and Care, Jena University Hospital, Jena, Germany.,Clinic for Anaesthesiology and Intensive Care Medicine, Jena University Hospital, Jena, Germany
| | - Florian Conradi
- Clinic for Anaesthesiology and Intensive Care Medicine, Jena University Hospital, Jena, Germany
| | - Tobias Schuerholz
- Department for Interdisciplinary Intensive Care, University Hospital Aachen, Aachen, Germany
| | - Markus F Blaess
- Center for Sepsis Control and Care, Jena University Hospital, Jena, Germany.,Clinic for Anaesthesiology and Intensive Care Medicine, Jena University Hospital, Jena, Germany
| | - Scott L Friedman
- Mount Sinai School of Medicine, New York, New York, United States of America
| | - Wolfgang Lösche
- Center for Sepsis Control and Care, Jena University Hospital, Jena, Germany.,Clinic for Anaesthesiology and Intensive Care Medicine, Jena University Hospital, Jena, Germany
| | - Michael Bauer
- Center for Sepsis Control and Care, Jena University Hospital, Jena, Germany.,Clinic for Anaesthesiology and Intensive Care Medicine, Jena University Hospital, Jena, Germany
| | - Ralf A Claus
- Center for Sepsis Control and Care, Jena University Hospital, Jena, Germany.,Clinic for Anaesthesiology and Intensive Care Medicine, Jena University Hospital, Jena, Germany
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7
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Lee M, Keener J, Xiao J, Long Zheng X, Rodgers GM. ADAMTS13 and its variants promote angiogenesis via upregulation of VEGF and VEGFR2. Cell Mol Life Sci 2015; 72:349-56. [PMID: 24950743 PMCID: PMC11113207 DOI: 10.1007/s00018-014-1667-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2013] [Revised: 06/04/2014] [Accepted: 06/05/2014] [Indexed: 02/08/2023]
Abstract
Severe plasma ADAMTS13 deficiency results in the clinical disorder thrombotic thrombocytopenic purpura. However, other potential pathophysiological roles of ADAMTS13 in endothelial cell biology remain unexplored. The goals of this study were to understand the angiogenic pathways ADAMTS13 activates and to identify the important structural components of ADAMTS13 that stimulate angiogenesis. Incubation of human umbilical vein endothelial cells (HUVEC) with 150 ng/mL (1 nM) of recombinant human ADAMTS13 induced VEGF expression by 53 % and increased VEGF mRNA by over sixfold, both within 10 min; the measured VEGF levels steadily decreased over 2 h, as shown by Western blot and ELISA. Phosphorylation of VEGFR2 was significantly enhanced in HUVEC after incubation with ADAMTS13 (1 nM). Structure-function analysis showed that an ADAMTS13 variant containing thrombospondin type 1 (TSP1) 2-8 repeats (TSP1 2-8), TSP1 2-8 plus CUB domains (TSP1 2-8 plus CUB), or TSP1 5-8 repeats plus CUB domains (TSP1 5-8 plus CUB) increased HUVEC proliferation by 41-54 % as compared to the EBM-2 controls. Chemotaxis assays further demonstrated that the TSP1 domains of ADAMTS13 increased HUVEC migration by 2.65-fold. Incubation of HUVEC with both ADAMTS13 variants containing TSP1 repeats and anti-VEGF IgG abrogated the enhanced effect of ADAMTS13 on proliferation, migration, and VEGFR2 phosphorylation. In conclusion, ADAMTS13-induced endothelial cell angiogenesis occurs via the upregulation of VEGF and phosphorylation of VEGFR2. This angiogenic activity depends on the C-terminal TSP1 repeats of ADAMTS13.
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Affiliation(s)
- Manfai Lee
- Division of Hematology and Hematologic Malignancies, University of Utah Health Sciences Center, 30 N 1900 E Room 5C402, Salt Lake City, UT, 84132, USA,
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8
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Abstract
Hepatic stellate cells are resident perisinusoidal cells distributed throughout the liver, with a remarkable range of functions in normal and injured liver. Derived embryologically from septum transversum mesenchyme, their precursors include submesothelial cells that invade the liver parenchyma from the hepatic capsule. In normal adult liver, their most characteristic feature is the presence of cytoplasmic perinuclear droplets that are laden with retinyl (vitamin A) esters. Normal stellate cells display several patterns of intermediate filaments expression (e.g., desmin, vimentin, and/or glial fibrillary acidic protein) suggesting that there are subpopulations within this parental cell type. In the normal liver, stellate cells participate in retinoid storage, vasoregulation through endothelial cell interactions, extracellular matrix homeostasis, drug detoxification, immunotolerance, and possibly the preservation of hepatocyte mass through secretion of mitogens including hepatocyte growth factor. During liver injury, stellate cells activate into alpha smooth muscle actin-expressing contractile myofibroblasts, which contribute to vascular distortion and increased vascular resistance, thereby promoting portal hypertension. Other features of stellate cell activation include mitogen-mediated proliferation, increased fibrogenesis driven by connective tissue growth factor, and transforming growth factor beta 1, amplified inflammation and immunoregulation, and altered matrix degradation. Evolving areas of interest in stellate cell biology seek to understand mechanisms of their clearance during fibrosis resolution by either apoptosis, senescence, or reversion, and their contribution to hepatic stem cell amplification, regeneration, and hepatocellular cancer.
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Affiliation(s)
- Juan E Puche
- Division of Liver Diseases, Icahn School of Medicine at Mount Sinai Hospital, New York, New York, New York
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9
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Kim B, Hing ZA, Wu A, Schiller T, Struble EB, Liuwantara D, Kempert PH, Broxham EJ, Edwards NC, Marder VJ, Simhadri VL, Sauna ZE, Howard TE, Kimchi-Sarfaty C. Single-nucleotide variations defining previously unreported ADAMTS13 haplotypes are associated with differential expression and activity of the VWF-cleaving protease in a Salvadoran congenital thrombotic thrombocytopenic purpura family. Br J Haematol 2014; 165:154-8. [PMID: 24433405 DOI: 10.1111/bjh.12713] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Benjamin Kim
- Division of Hematology/Oncology, Department of Medicine, University of California San Francisco School of Medicine, San Francisco, CA, USA
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10
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Kumar S, Rao N, Ge R. Emerging Roles of ADAMTSs in Angiogenesis and Cancer. Cancers (Basel) 2012; 4:1252-99. [PMID: 24213506 PMCID: PMC3712723 DOI: 10.3390/cancers4041252] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2012] [Revised: 11/21/2012] [Accepted: 11/23/2012] [Indexed: 12/18/2022] Open
Abstract
A Disintegrin-like And Metalloproteinase with ThromboSpondin motifs—ADAMTSs—are a multi-domain, secreted, extracellular zinc metalloproteinase family with 19 members in humans. These extracellular metalloproteinases are known to cleave a wide range of substrates in the extracellular matrix. They have been implicated in various physiological processes, such as extracellular matrix turnover, melanoblast development, interdigital web regression, blood coagulation, ovulation, etc. ADAMTSs are also critical in pathological processes such as arthritis, atherosclerosis, cancer, angiogenesis, wound healing, etc. In the past few years, there has been an explosion of reports concerning the role of ADAMTS family members in angiogenesis and cancer. To date, 10 out of the 19 members have been demonstrated to be involved in regulating angiogenesis and/or cancer. The mechanism involved in their regulation of angiogenesis or cancer differs among different members. Both angiogenesis-dependent and -independent regulation of cancer have been reported. This review summarizes our current understanding on the roles of ADAMTS in angiogenesis and cancer and highlights their implications in cancer therapeutic development.
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Affiliation(s)
- Saran Kumar
- Department of Biological Sciences, National University of Singapore, Singapore 117543, Singapore.
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11
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Edwards NC, Hing ZA, Perry A, Blaisdell A, Kopelman DB, Fathke R, Plum W, Newell J, Allen CE, S. G, Shapiro A, Okunji C, Kosti I, Shomron N, Grigoryan V, Przytycka TM, Sauna ZE, Salari R, Mandel-Gutfreund Y, Komar AA, Kimchi-Sarfaty C. Characterization of coding synonymous and non-synonymous variants in ADAMTS13 using ex vivo and in silico approaches. PLoS One 2012; 7:e38864. [PMID: 22768050 PMCID: PMC3387200 DOI: 10.1371/journal.pone.0038864] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2012] [Accepted: 05/13/2012] [Indexed: 12/20/2022] Open
Abstract
Synonymous variations, which are defined as codon substitutions that do not change the encoded amino acid, were previously thought to have no effect on the properties of the synthesized protein(s). However, mounting evidence shows that these “silent” variations can have a significant impact on protein expression and function and should no longer be considered “silent”. Here, the effects of six synonymous and six non-synonymous variations, previously found in the gene of ADAMTS13, the von Willebrand Factor (VWF) cleaving hemostatic protease, have been investigated using a variety of approaches. The ADAMTS13 mRNA and protein expression levels, as well as the conformation and activity of the variants have been compared to that of wild-type ADAMTS13. Interestingly, not only the non-synonymous variants but also the synonymous variants have been found to change the protein expression levels, conformation and function. Bioinformatic analysis of ADAMTS13 mRNA structure, amino acid conservation and codon usage allowed us to establish correlations between mRNA stability, RSCU, and intracellular protein expression. This study demonstrates that variants and more specifically, synonymous variants can have a substantial and definite effect on ADAMTS13 function and that bioinformatic analysis may allow development of predictive tools to identify variants that will have significant effects on the encoded protein.
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Affiliation(s)
- Nathan C. Edwards
- Laboratory of Hemostasis, Division of Hematology, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, Maryland, United States of America
| | - Zachary A. Hing
- Laboratory of Hemostasis, Division of Hematology, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, Maryland, United States of America
| | - Avital Perry
- Laboratory of Hemostasis, Division of Hematology, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, Maryland, United States of America
| | - Adam Blaisdell
- Laboratory of Hemostasis, Division of Hematology, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, Maryland, United States of America
| | - David B. Kopelman
- Laboratory of Hemostasis, Division of Hematology, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, Maryland, United States of America
| | - Robert Fathke
- Laboratory of Hemostasis, Division of Hematology, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, Maryland, United States of America
| | - William Plum
- Laboratory of Hemostasis, Division of Hematology, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, Maryland, United States of America
| | - Jordan Newell
- Laboratory of Hemostasis, Division of Hematology, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, Maryland, United States of America
| | - Courtni E. Allen
- Laboratory of Hemostasis, Division of Hematology, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, Maryland, United States of America
| | - Geetha S.
- Laboratory of Hemostasis, Division of Hematology, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, Maryland, United States of America
| | - Aaron Shapiro
- Laboratory of Hemostasis, Division of Hematology, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, Maryland, United States of America
| | - Chinyere Okunji
- Laboratory of Hemostasis, Division of Hematology, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, Maryland, United States of America
| | - Idit Kosti
- Department of Biology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Noam Shomron
- Department of Cell and Developmental Biology, Tel Aviv University, Tel Aviv, Israel
| | - Vahan Grigoryan
- National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Teresa M. Przytycka
- National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Zuben E. Sauna
- Laboratory of Hemostasis, Division of Hematology, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, Maryland, United States of America
| | - Raheleh Salari
- National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, Maryland, United States of America
| | | | - Anton A. Komar
- Center for Gene Regulation in Health and Disease, Department of Biological, Geological and Environmental Sciences, Cleveland State University, Cleveland, Ohio, United States of America
- * E-mail: (CKS); (AAK)
| | - Chava Kimchi-Sarfaty
- Laboratory of Hemostasis, Division of Hematology, Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, Maryland, United States of America
- * E-mail: (CKS); (AAK)
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