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Damagatla M, Verma A, Pochaboina V, Bhate M, Senthil S. GAPO syndrome: a novel variant in ANTXR1 gene. Ophthalmic Genet 2024:1-6. [PMID: 38691016 DOI: 10.1080/13816810.2024.2345879] [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: 11/04/2023] [Accepted: 04/16/2024] [Indexed: 05/03/2024]
Abstract
BACKGROUND GAPO syndrome is a rare autosomal recessive disorder characterized by the acronym of growth retardation, alopecia, pseudo-anodontia and progressive optic atrophy. While the genetic alteration of the ANTXR1 gene has been known for its cause, the full range of its clinical and genetic manifestations is not well explored due to the syndrome's extreme rarity. MATERIALS/METHODS We report two children born to a non-consanguineous parent in India with classical features of GAPO syndrome. The whole exome sequencing analysis (WES) was performed in both siblings, and the parent's genetic and clinical status was determined. The identified variation was characterized in silico using homology-based protein modelling. RESULTS In WES analysis, a homozygous ANTXR1 gene indel variant c. 151_152 + 2delAAGT (p.Lys51fs) was identified in both siblings. The parents were identified as the carriers of the ANTXR1 variant. Additionally, they also displayed mild GAPO-related facial and glaucomatous features. In silico analysis and homology-based ANTXR1 protein structure illustrate a frameshift and the subsequent premature truncation of the protein. CONCLUSIONS Our reports contribute to the comprehension of GAPO syndrome within the Indian context describing an ANTXR1 novel variant causing premature protein truncation. WES-based genetic testing can significantly aid in expertly diagnosing GAPO syndrome. In the present case scenario, a variable penetrance of ANTXR1 variation was acknowledged as the carrier parents also had a mild degree of GAPO-related features. Future reports that include parental clinical diagnosis can offer further insights in this context.
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Affiliation(s)
| | - Anshuman Verma
- Institute of Rare Eye Diseases and Ocular Genetics, LV Prasad Eye Institute, Hyderabad, India
| | - Venkatesh Pochaboina
- Institute of Rare Eye Diseases and Ocular Genetics, LV Prasad Eye Institute, Hyderabad, India
| | - Manju Bhate
- Strabismus, Paediatric and Neuro-Ophthalmology Services (MB), Jasti V Ramanamma Children's Eye Care Center, LV Prasad Eye Institute, Hyderabad, India
| | - Sirisha Senthil
- VST Centre for Glaucoma Services, LV Prasad Eye Institute, Hyderabad, India
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2
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Przyklenk M, Karmacharya S, Bonasera D, Pasanen-Zentz AL, Kmoch S, Paulsson M, Wagener R, Liccardi G, Schiavinato A. ANTXR1 deficiency promotes fibroblast senescence: implications for GAPO syndrome as a progeroid disorder. Sci Rep 2024; 14:9321. [PMID: 38653789 PMCID: PMC11039612 DOI: 10.1038/s41598-024-59901-y] [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: 12/29/2023] [Accepted: 04/16/2024] [Indexed: 04/25/2024] Open
Abstract
ANTXR1 is one of two cell surface receptors mediating the uptake of the anthrax toxin into cells. Despite substantial research on its role in anthrax poisoning and a proposed function as a collagen receptor, ANTXR1's physiological functions remain largely undefined. Pathogenic variants in ANTXR1 lead to the rare GAPO syndrome, named for its four primary features: Growth retardation, Alopecia, Pseudoanodontia, and Optic atrophy. The disease is also associated with a complex range of other phenotypes impacting the cardiovascular, skeletal, pulmonary and nervous systems. Aberrant accumulation of extracellular matrix components and fibrosis are considered to be crucial components in the pathogenesis of GAPO syndrome, contributing to the shortened life expectancy of affected individuals. Nonetheless, the specific mechanisms connecting ANTXR1 deficiency to the clinical manifestations of GAPO syndrome are largely unexplored. In this study, we present evidence that ANTXR1 deficiency initiates a senescent phenotype in human fibroblasts, correlating with defects in nuclear architecture and actin dynamics. We provide novel insights into ANTXR1's physiological functions and propose GAPO syndrome to be reconsidered as a progeroid disorder highlighting an unexpected role for an integrin-like extracellular matrix receptor in human aging.
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Affiliation(s)
- Matthias Przyklenk
- Center for Biochemistry, Medical Faculty, University of Cologne, Joseph-Stelzmann-Str. 52, 50931, Cologne, Germany
| | - Shreya Karmacharya
- Center for Biochemistry, Medical Faculty, University of Cologne, Joseph-Stelzmann-Str. 52, 50931, Cologne, Germany
| | - Debora Bonasera
- Genetic Instability, Cell Death and Inflammation Laboratory, Center for Biochemistry, Medical Faculty, University of Cologne, Joseph-Stelzmann-Str. 52, 50931, Cologne, Germany
| | - Arthur-Lauri Pasanen-Zentz
- Center for Biochemistry, Medical Faculty, University of Cologne, Joseph-Stelzmann-Str. 52, 50931, Cologne, Germany
| | - Stanislav Kmoch
- Research Unit of Rare Diseases, Department of Pediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Mats Paulsson
- Center for Biochemistry, Medical Faculty, University of Cologne, Joseph-Stelzmann-Str. 52, 50931, Cologne, Germany
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - Raimund Wagener
- Center for Biochemistry, Medical Faculty, University of Cologne, Joseph-Stelzmann-Str. 52, 50931, Cologne, Germany
| | - Gianmaria Liccardi
- Genetic Instability, Cell Death and Inflammation Laboratory, Center for Biochemistry, Medical Faculty, University of Cologne, Joseph-Stelzmann-Str. 52, 50931, Cologne, Germany
| | - Alvise Schiavinato
- Center for Biochemistry, Medical Faculty, University of Cologne, Joseph-Stelzmann-Str. 52, 50931, Cologne, Germany.
- Center for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany.
- Department of Pediatrics and Adolescent Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany.
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3
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Balakrishnan S, Goud I, Teegala ML. Prenatal onset GAPO syndrome with a novel ANTXR1 variant in an Indian child: Expansion of the phenotype & literature review. Eur J Med Genet 2024; 68:104929. [PMID: 38423276 DOI: 10.1016/j.ejmg.2024.104929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 11/21/2023] [Accepted: 02/18/2024] [Indexed: 03/02/2024]
Abstract
GAPO syndrome is a rare genetic condition caused by bi-allelic variants in ANTXR1 gene & is an abbreviation for its core features - growth retardation, alopecia, pseudo-anodontia & optic atrophy. Certain additional features involving various other systems have been reported over the years & contribute to the expanding spectrum of this evolving phenotype. We report GAPO syndrome in a 3.75 year old Indian female child, who presented with some unique features such as sagittal craniosynostosis with scaphocephaly & bilateral choroid plexus cysts, alongside the core phenotype. We also report a novel frameshift variant in our patient & offer first evidence for the prenatal onset of some features.
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4
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de Bakker M, Petersen TB, Rueten-Budde AJ, Akkerhuis KM, Umans VA, Brugts JJ, Germans T, Reinders MJT, Katsikis PD, van der Spek PJ, Ostroff R, She R, Lanfear D, Asselbergs FW, Boersma E, Rizopoulos D, Kardys I. Machine learning-based biomarker profile derived from 4210 serially measured proteins predicts clinical outcome of patients with heart failure. EUROPEAN HEART JOURNAL. DIGITAL HEALTH 2023; 4:444-454. [PMID: 38045440 PMCID: PMC10689916 DOI: 10.1093/ehjdh/ztad056] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 09/06/2023] [Accepted: 10/03/2023] [Indexed: 12/05/2023]
Abstract
Aims Risk assessment tools are needed for timely identification of patients with heart failure (HF) with reduced ejection fraction (HFrEF) who are at high risk of adverse events. In this study, we aim to derive a small set out of 4210 repeatedly measured proteins, which, along with clinical characteristics and established biomarkers, carry optimal prognostic capacity for adverse events, in patients with HFrEF. Methods and results In 382 patients, we performed repeated blood sampling (median follow-up: 2.1 years) and applied an aptamer-based multiplex proteomic approach. We used machine learning to select the optimal set of predictors for the primary endpoint (PEP: composite of cardiovascular death, heart transplantation, left ventricular assist device implantation, and HF hospitalization). The association between repeated measures of selected proteins and PEP was investigated by multivariable joint models. Internal validation (cross-validated c-index) and external validation (Henry Ford HF PharmacoGenomic Registry cohort) were performed. Nine proteins were selected in addition to the MAGGIC risk score, N-terminal pro-hormone B-type natriuretic peptide, and troponin T: suppression of tumourigenicity 2, tryptophanyl-tRNA synthetase cytoplasmic, histone H2A Type 3, angiotensinogen, deltex-1, thrombospondin-4, ADAMTS-like protein 2, anthrax toxin receptor 1, and cathepsin D. N-terminal pro-hormone B-type natriuretic peptide and angiotensinogen showed the strongest associations [hazard ratio (95% confidence interval): 1.96 (1.17-3.40) and 0.66 (0.49-0.88), respectively]. The multivariable model yielded a c-index of 0.85 upon internal validation and c-indices up to 0.80 upon external validation. The c-index was higher than that of a model containing established risk factors (P = 0.021). Conclusion Nine serially measured proteins captured the most essential prognostic information for the occurrence of adverse events in patients with HFrEF, and provided incremental value for HF prognostication beyond established risk factors. These proteins could be used for dynamic, individual risk assessment in a prospective setting. These findings also illustrate the potential value of relatively 'novel' biomarkers for prognostication. Clinical Trial Registration https://clinicaltrials.gov/ct2/show/NCT01851538?term=nCT01851538&draw=2&rank=1 24.
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Affiliation(s)
- Marie de Bakker
- Department of Cardiology, Erasmus MC, University Medical Center Rotterdam, Dr. Molenwaterplein 40, 3015GD, Rotterdam, The Netherlands
| | - Teun B Petersen
- Department of Cardiology, Erasmus MC, University Medical Center Rotterdam, Dr. Molenwaterplein 40, 3015GD, Rotterdam, The Netherlands
- Department of Biostatistics, Erasmus MC, University Medical Center Rotterdam, Dr. Molenwaterplein 40, 3015GD, Rotterdam, The Netherlands
| | - Anja J Rueten-Budde
- Department of Biostatistics, Erasmus MC, University Medical Center Rotterdam, Dr. Molenwaterplein 40, 3015GD, Rotterdam, The Netherlands
| | - K Martijn Akkerhuis
- Department of Cardiology, Erasmus MC, University Medical Center Rotterdam, Dr. Molenwaterplein 40, 3015GD, Rotterdam, The Netherlands
| | - Victor A Umans
- Department of Cardiology, Northwest Clinics, Wilhelminalaan 12, 1815 JD, Alkmaar, The Netherlands
| | - Jasper J Brugts
- Department of Cardiology, Erasmus MC, University Medical Center Rotterdam, Dr. Molenwaterplein 40, 3015GD, Rotterdam, The Netherlands
| | - Tjeerd Germans
- Department of Cardiology, Northwest Clinics, Wilhelminalaan 12, 1815 JD, Alkmaar, The Netherlands
| | - Marcel J T Reinders
- Delft Bioinformatics Lab, Delft University of Technology, Van Mourik Broekmanweg 6, 2628 XE, Delft, The Netherlands
| | - Peter D Katsikis
- Department of Immunology, Erasmus MC, University Medical Center Rotterdam, Dr. Molenwaterplein 40, 3015GD, Rotterdam, The Netherlands
| | - Peter J van der Spek
- Department of Pathology, Erasmus MC, University Medical Center Rotterdam, Dr. Molenwaterplein 40, 3015GD, Rotterdam, The Netherlands
| | - Rachel Ostroff
- SomaLogic, Inc., 2945 Wilderness Pl., Boulder, CO 80301, USA
| | - Ruicong She
- Department of Public Health Sciences, Henry Ford Health System, 1 Ford Pl, Detroit, MI 48202, USA
| | - David Lanfear
- Center for Individualized and Genomic Medicine Research (CIGMA), Henry Ford Hospital, 2799 W. Grand Boulevard, Detroit MI, 48202, USA
- Heart and Vascular Institute, Henry Ford Hospital, 2799 W. Grand Boulevard, Detroit, MI 48202, USA
| | - Folkert W Asselbergs
- Amsterdam University Medical Centers, Department of Cardiology, University of Amsterdam, Meibergdreef 9, 1105 AZ, Amsterdam, The Netherlands
- Health Data Research UK and Institute of Health Informatics, University College London, Gower St, London, WC1E 6BT, UK
| | - Eric Boersma
- Department of Cardiology, Erasmus MC, University Medical Center Rotterdam, Dr. Molenwaterplein 40, 3015GD, Rotterdam, The Netherlands
| | - Dimitris Rizopoulos
- Department of Biostatistics, Erasmus MC, University Medical Center Rotterdam, Dr. Molenwaterplein 40, 3015GD, Rotterdam, The Netherlands
- Department of Epidemiology, Erasmus MC, University Medical Center Rotterdam, Dr. Molenwaterplein 40, 3015GD, Rotterdam, The Netherlands
| | - Isabella Kardys
- Department of Cardiology, Erasmus MC, University Medical Center Rotterdam, Dr. Molenwaterplein 40, 3015GD, Rotterdam, The Netherlands
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5
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Kareff SA, Corbett V, Hallenbeck P, Chauhan A. TEM8 in Oncogenesis: Protein Biology, Pre-Clinical Agents, and Clinical Rationale. Cells 2023; 12:2623. [PMID: 37998358 PMCID: PMC10670355 DOI: 10.3390/cells12222623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 11/01/2023] [Accepted: 11/08/2023] [Indexed: 11/25/2023] Open
Abstract
The TEM8 protein represents an emerging biomarker in many solid tumor histologies. Given the various roles it plays in oncogenesis, including but not limited to angiogenesis, epithelial-to-mesenchymal transition, and cell migration, TEM8 has recently served and will continue to serve as the target of novel oncologic therapies. We review herein the role of TEM8 in oncogenesis. We review its normal function, highlight the additional roles it plays in the tumor microenvironment, and synthesize pre-clinical and clinical data currently available. We underline the protein's prognostic and predictive abilities in various solid tumors by (1) highlighting its association with more aggressive disease biology and poor clinical outcomes and (2) assessing its associated clinical trial landscape. Finally, we offer future directions for clinical studies involving TEM8, including incorporating pre-clinical agents into clinical trials and combining previously tested oncologic therapies with currently available treatments, such as immunotherapy.
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Affiliation(s)
- Samuel A. Kareff
- University of Miami Sylvester Comprehensive Cancer Center/Jackson Memorial Hospital, Miami, FL 33136, USA
| | | | | | - Aman Chauhan
- Division of Medical Oncology, Department of Medicine, University of Miami Sylvester Comprehensive Cancer Center, Miami, FL 33136, USA
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6
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ANTXR1 as a potential sensor of extracellular mechanical cues. Acta Biomater 2023; 158:80-86. [PMID: 36638946 DOI: 10.1016/j.actbio.2023.01.006] [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: 08/18/2022] [Revised: 12/18/2022] [Accepted: 01/03/2023] [Indexed: 01/12/2023]
Abstract
Cell adhesion molecules mediate cell-cell or cell-matrix interactions, some of which are mechanical sensors, such as integrins. Emerging evidence indicates that anthrax toxin receptor 1 (ANTXR1), a newly identified cell adhesion molecule, can also sense extracellular mechanical signals such as hydrostatic pressure and extracellular matrix (ECM) rigidity. ANTXR1 can interact with ECM through connecting intracellular cytoskeleton and ECM molecules (just like integrins) to regulate numerous biological processes, such as cell adhesion, cell migration or ECM homeostasis. Although with high structural similarity to integrins, its functions and downstream signal transduction are independent from those of integrins. In this perspective, based on existing evidence in literature, we analyzed the structural and functional evidence that ANTXR1 can act as a potential sensor for extracellular mechanical cues. To our knowledge, this is the first in-depth overview of ANTXR1 from the perspective of mechanobiology. STATEMENT OF SIGNIFICANCE: An overview of ANTXR1 from the perspective of mechanobiology; An analysis of mechanical sensitivity of ANTXR1 in structure and function; A summary of existing evidence of ANTXR1 as a potential mechanosensor.
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7
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Przyklenk M, Heumüller SE, Freiburg C, Lütke S, Sengle G, Koch M, Paulsson M, Schiavinato A, Wagener R. Lack of evidence for a role of anthrax toxin receptors as surface receptors for collagen VI and for its cleaved-off C5 domain/endotrophin. iScience 2022; 25:105116. [PMID: 36185380 PMCID: PMC9515600 DOI: 10.1016/j.isci.2022.105116] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 05/29/2022] [Accepted: 09/08/2022] [Indexed: 11/26/2022] Open
Abstract
The microfibril-forming collagen VI is proteolytically cleaved and it was proposed that the released C-terminal Kunitz domain (C5) of the α3 chain is an adipokine important for tumor progression and fibrosis. Designated “endotrophin,” C5 is a potent biomarker for fibroinflammatory diseases. However, the biochemical mechanisms behind endotrophin activity were not investigated. Earlier, anthrax toxin receptor 1 was found to bind C5, but this potential interaction was not further studied. Given the proposed physiological role of endotrophin, we aimed to determine how the signal is transmitted. Surprisingly, we could not detect any interaction between endotrophin and anthrax toxin receptor 1 or its close relative, anthrax toxin receptor 2. Moreover, we detect no binding of fully assembled collagen VI to either receptor. We also studied the collagen VI receptor NG2 (CSPG4) and confirmed that NG2 binds assembled collagen VI, but not cleaved C5/endotrophin. A cellular receptor for C5/endotrophin, therefore, still remains elusive. ANTXR1 does not support collagen VI or C5/endotrophin binding to the cell surface ANTXR2 does not support collagen VI or C5/endotrophin binding to the cell surface NG2/CSPG4 supports collagen VI, but not C5/endotrophin binding to the cell surface
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8
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Two siblings with GAPO syndrome: a novel missense variant in ANTXR1. Clin Dysmorphol 2022; 31:191-195. [PMID: 36094357 DOI: 10.1097/mcd.0000000000000430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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9
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ANTXR1 Regulates Erythroid Cell Proliferation and Differentiation through wnt/β-Catenin Signaling Pathway In Vitro and in Hematopoietic Stem Cell. DISEASE MARKERS 2022; 2022:1226697. [PMID: 36065334 PMCID: PMC9440811 DOI: 10.1155/2022/1226697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 07/21/2022] [Accepted: 07/29/2022] [Indexed: 11/18/2022]
Abstract
Erythropoiesis is a highly complex and sophisticated multistage process regulated by many transcription factors, as well as noncoding RNAs. Anthrax toxin receptor 1 (ANTXR1) is a type I transmembrane protein that binds the anthrax toxin ligands and mediates the entry of its toxic part into cells. It also functions as a receptor for the Protective antigen (PA) of anthrax toxin, and mediates the entry of Edema factor (EF) and Lethal factor (LF) into the cytoplasm of target cells and exerts their toxicity. Previous research has shown that ANTXR1 inhibits the expression of γ-globin during the differentiation of erythroid cells. However, the effect on erythropoiesis from a cellular perspective has not been fully determined. This study examined the role of ANTXR1 on erythropoiesis using K562 and HUDEP-2 cell lines as well as cord blood CD34+ cells. Our study has shown that overexpression of ANTXR1 can positively regulate erythrocyte proliferation, as well as inhibit GATA1 and ALAS2 expression, differentiation, and apoptosis in K562 cells and hematopoietic stem cells. ANTXR1 knockdown inhibited proliferation, promoted GATA1 and ALAS2 expression, accelerated erythrocyte differentiation and apoptosis, and promoted erythrocyte maturation. Our study also showed that ANTXR1 may regulate the proliferation and differentiation of hematopoietic cells, though the Wnt/β-catenin pathway, which may help to establish a possible therapeutic target for the treatment of blood disorders.
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10
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Transmembrane Protein ANTXR1 Regulates γ-Globin Expression by Targeting the Wnt/β-Catenin Signaling Pathway. J Immunol Res 2022; 2022:8440422. [PMID: 35942209 PMCID: PMC9356848 DOI: 10.1155/2022/8440422] [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: 04/21/2022] [Revised: 05/25/2022] [Accepted: 05/28/2022] [Indexed: 12/02/2022] Open
Abstract
Reactivation of fetal hemoglobin (HbF, α2γ2) alleviates clinical symptoms in patients with β-thalassemia and sickle cell disease, although the regulatory mechanisms of γ-globin expression have not yet been fully elucidated. Recent studies found that interfering with the expression of the membrane protein ANTXR1 gene upregulated γ-globin levels. However, the exact mechanism by which ANTXR1 regulates γ-globin levels remains unclear. Our study showed that overexpression and knockdown of ANTXR1 in K562, cord blood CD34+, and HUDEP-2 cells decreased and increased γ-globin expression, respectively. ANTXR1 regulates the reactivation of fetal hemoglobin (HbF, α2γ2) in K562, cord blood CD34+, and adult peripheral blood CD34+ cells through interaction with LRP6 to promote the nuclear entry of β-catenin and activate the Wnt/β-catenin signaling pathway. The overexpression or knockdown of ANTXR1 on γ-globin and Wnt/β-catenin signaling in K562 cells was reversed by the inhibitor XAV939 and the activator LiCl, respectively, where XAV939 inhibits the transcription of β-catenin in the Wnt pathway, but LiCl inhibits GSK3-β. We also showed that the binding ability of the rank4 site in the transcriptional regulatory region of the SOX6 gene to c-Jun was significantly increased after overexpression of ANTXR1 in K562 cells. SOX6 protein expression was increased significantly after overexpression of the c-Jun gene, indicating that the transcription factor c-Jun initiated the transcription of SOX6, thereby silencing γ-globin. Our findings may provide a new intervention target for the treatment of β-hemoglobinopathies.
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11
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Chen PR, Rowland RRR, Stoian AM, Petrovan V, Sheahan M, Ganta C, Cino-Ozuna G, Kim DY, Dunleavey JM, Whitworth KM, Samuel MS, Spate LD, Cecil RF, Benne JA, Yan X, Fang Y, Croix BS, Lechtenberg K, Wells KD, Prather RS. Disruption of anthrax toxin receptor 1 in pigs leads to a rare disease phenotype and protection from senecavirus A infection. Sci Rep 2022; 12:5009. [PMID: 35322150 PMCID: PMC8943192 DOI: 10.1038/s41598-022-09123-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 03/17/2022] [Indexed: 12/13/2022] Open
Abstract
Senecavirus A (SVA) is a cause of vesicular disease in pigs, and infection rates are rising within the swine industry. Recently, anthrax toxin receptor 1 (ANTXR1) was revealed as the receptor for SVA in human cells. Herein, the role of ANTXR1 as a receptor for SVA in pigs was investigated by CRISPR/Cas9 genome editing. Strikingly, ANTXR1 knockout (KO) pigs exhibited features consistent with the rare disease, GAPO syndrome, in humans. Fibroblasts from wild type (WT) pigs supported replication of SVA; whereas, fibroblasts from KO pigs were resistant to infection. During an SVA challenge, clinical symptoms, including vesicular lesions, and circulating viremia were present in infected WT pigs but were absent in KO pigs. Additional ANTXR1-edited piglets were generated that were homozygous for an in-frame (IF) mutation. While IF pigs presented a GAPO phenotype similar to the KO pigs, fibroblasts showed mild infection, and circulating SVA nucleic acid was decreased in IF compared to WT pigs. Thus, this new ANTXR1 mutation resulted in decreased permissiveness of SVA in pigs. Overall, genetic disruption of ANTXR1 in pigs provides a unique model for GAPO syndrome and prevents circulating SVA infection and clinical symptoms, confirming that ANTXR1 acts as a receptor for the virus.
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Affiliation(s)
- Paula R Chen
- Division of Animal Science, College of Agriculture Food and Natural Resources, University of Missouri, Columbia, Columbia, MO, 65211, USA.
| | - Raymond R R Rowland
- Department of Diagnostic Medicine and Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS, 66506, USA
| | - Ana M Stoian
- Department of Diagnostic Medicine and Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS, 66506, USA.,Department of Medical Microbiology and Immunology, School of Medicine, University of California Davis, Davis, CA, 95616, USA
| | - Vlad Petrovan
- Department of Diagnostic Medicine and Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS, 66506, USA
| | - Maureen Sheahan
- Department of Diagnostic Medicine and Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS, 66506, USA
| | - Charan Ganta
- College of Veterinary Medicine, Kansas State Veterinary Diagnostic Laboratory, Kansas State University, Manhattan, KS, 66506, USA
| | - Giselle Cino-Ozuna
- College of Veterinary Medicine, Kansas State Veterinary Diagnostic Laboratory, Kansas State University, Manhattan, KS, 66506, USA
| | - Dae Young Kim
- Veterinary Medical Diagnostic Laboratory, College of Veterinary Medicine, University of Missouri, Columbia, MO, 65211, USA
| | - James M Dunleavey
- Mouse Cancer Genetics Program, Center for Cancer Research, National Cancer Institute, Frederick, MD, 21702, USA
| | - Kristin M Whitworth
- Division of Animal Science, College of Agriculture Food and Natural Resources, University of Missouri, Columbia, Columbia, MO, 65211, USA
| | - Melissa S Samuel
- Division of Animal Science, College of Agriculture Food and Natural Resources, University of Missouri, Columbia, Columbia, MO, 65211, USA
| | - Lee D Spate
- Division of Animal Science, College of Agriculture Food and Natural Resources, University of Missouri, Columbia, Columbia, MO, 65211, USA
| | - Raissa F Cecil
- Division of Animal Science, College of Agriculture Food and Natural Resources, University of Missouri, Columbia, Columbia, MO, 65211, USA
| | - Joshua A Benne
- Division of Animal Science, College of Agriculture Food and Natural Resources, University of Missouri, Columbia, Columbia, MO, 65211, USA
| | - Xingyu Yan
- Department of Pathobiology, College of Veterinary Medicine, University of Illinois, Urbana, IL, 61802, USA
| | - Ying Fang
- Department of Diagnostic Medicine and Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS, 66506, USA.,Department of Pathobiology, College of Veterinary Medicine, University of Illinois, Urbana, IL, 61802, USA
| | - Brad St Croix
- Mouse Cancer Genetics Program, Center for Cancer Research, National Cancer Institute, Frederick, MD, 21702, USA
| | - Kelly Lechtenberg
- Midwest Veterinary Services, Inc. and Central States Research Centre, Inc., Oakland, NE, 68045, USA
| | - Kevin D Wells
- Division of Animal Science, College of Agriculture Food and Natural Resources, University of Missouri, Columbia, Columbia, MO, 65211, USA
| | - Randall S Prather
- Division of Animal Science, College of Agriculture Food and Natural Resources, University of Missouri, Columbia, Columbia, MO, 65211, USA
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12
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Sun KR, Lv HF, Chen BB, Nie CY, Zhao J, Chen XB. Latest therapeutic target for gastric cancer: Anthrax toxin receptor 1. World J Gastrointest Oncol 2021; 13:216-222. [PMID: 33889273 PMCID: PMC8040068 DOI: 10.4251/wjgo.v13.i4.216] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 02/23/2021] [Accepted: 03/13/2021] [Indexed: 02/06/2023] Open
Abstract
Anthrax toxin receptor 1 (ANTXR1), also known as tumor endothelial marker 8, is a highly conserved cell surface protein overexpressed in tumor-infiltrating vessels. It was first found in vascular endothelial cells of human colorectal cancer. Although our understanding of its physiological function is limited, it has been found that ANTXR1 binds collagen and promotes migration of endothelial cells in vitro. ANTXR1 is upregulated in vessels of different tumor types in mice and humans, and is also expressed by tumor cells themselves in some tumors, such as gastric, lung, intestinal and breast cancer. Developmental angiogenesis and wound healing were not disturbed in ANTXR1 knockout mice, but compared with wild-type mice, growth of melanoma was impaired after ANTXR1 knockout, indicating that host-derived ANTXR1 can promote tumor growth on the basis of immune activity. Previous studies have shown that ANTXR1 vaccines or sublethal doses of anthrax toxin can inhibit angiogenesis, slow tumor growth and prolong survival. These studies suggest that ANTXR1 is necessary for tumor rather than physiological angiogenesis. It has been found that ANTXR1 plays an important role in tumor angiogenesisas well as in the growth and metastasis of many kinds of tumors. This article reviews the physiological function of ANTXR1 and its role in different kinds of cancer.
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Affiliation(s)
- Ke-Ran Sun
- Department of Oncology, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450000, Henan Province, China
| | - Hui-Fang Lv
- Department of Oncology, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450000, Henan Province, China
| | - Bei-Bei Chen
- Department of Oncology, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450000, Henan Province, China
| | - Cai-Yun Nie
- Department of Oncology, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450000, Henan Province, China
| | - Jing Zhao
- Department of Oncology, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450000, Henan Province, China
| | - Xiao-Bing Chen
- Department of Oncology, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450000, Henan Province, China
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13
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Jiang Q, Qin X, Yoshida CA, Komori H, Yamana K, Ohba S, Hojo H, Croix BS, Kawata-Matsuura VKS, Komori T. Antxr1, Which is a Target of Runx2, Regulates Chondrocyte Proliferation and Apoptosis. Int J Mol Sci 2020; 21:E2425. [PMID: 32244499 PMCID: PMC7178079 DOI: 10.3390/ijms21072425] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 03/23/2020] [Accepted: 03/30/2020] [Indexed: 12/15/2022] Open
Abstract
Antxr1/Tem8 is highly expressed in tumor endothelial cells and is a receptor for anthrax toxin. Mutation of Antxr1 causes GAPO syndrome, which is characterized by growth retardation, alopecia, pseudo-anodontia, and optic atrophy. However, the mechanism underlying the growth retardation remains to be clarified. Runx2 is essential for osteoblast differentiation and chondrocyte maturation and regulates chondrocyte proliferation through Ihh induction. In the search of Runx2 target genes in chondrocytes, we found that Antxr1 expression is upregulated by Runx2. Antxr1 was highly expressed in cartilaginous tissues and was directly regulated by Runx2. In skeletal development, the process of endochondral ossification proceeded similarly in wild-type and Antxr1-/- mice. However, the limbs of Antxr1-/- mice were shorter than those of wild-type mice from embryonic day 16.5 due to the reduced chondrocyte proliferation. Chondrocyte-specific Antxr1 transgenic mice exhibited shortened limbs, although the process of endochondral ossification proceeded as in wild-type mice. BrdU-uptake and apoptosis were both increased in chondrocytes, and the apoptosis-high regions were mineralized. These findings indicated that Antxr1, of which the expression is regulated by Runx2, plays an important role in chondrocyte proliferation and that overexpression of Antxr1 causes chondrocyte apoptosis accompanied by matrix mineralization.
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Affiliation(s)
- Qing Jiang
- Basic and Translational Research Center for Hard Tissue Disease, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8588, Japan (V.K.S.K.-M.)
| | - Xin Qin
- Basic and Translational Research Center for Hard Tissue Disease, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8588, Japan (V.K.S.K.-M.)
| | - Carolina Andrea Yoshida
- Basic and Translational Research Center for Hard Tissue Disease, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8588, Japan (V.K.S.K.-M.)
| | - Hisato Komori
- Basic and Translational Research Center for Hard Tissue Disease, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8588, Japan (V.K.S.K.-M.)
| | - Kei Yamana
- Teijin Institute for Bio-Medical Research, Teijin Limited, Tokyo 100-8585, Japan
| | - Shinsuke Ohba
- Department of Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8588, Japan
| | - Hironori Hojo
- Department of Bioengineering, the University of Tokyo Graduate School of Engineering, Tokyo 113-0033, Japan
| | - Brad St. Croix
- Tumor Angiogenesis Unit, National Cancer Institute (NCI), National Institutes of Health (NIH), Frederick, MD 21702, USA
| | - Viviane K. S. Kawata-Matsuura
- Basic and Translational Research Center for Hard Tissue Disease, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8588, Japan (V.K.S.K.-M.)
| | - Toshihisa Komori
- Basic and Translational Research Center for Hard Tissue Disease, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8588, Japan (V.K.S.K.-M.)
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14
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Abstract
The anthrax toxin receptors-capillary morphogenesis gene 2 (CMG2) and tumor endothelial marker 8 (TEM8)-were identified almost 20 years ago, although few studies have moved beyond their roles as receptors for the anthrax toxins to address their physiological functions. In the last few years, insight into their endogenous roles has come from two rare diseases: hyaline fibromatosis syndrome, caused by mutations in CMG2, and growth retardation, alopecia, pseudo-anodontia, and optic atrophy (GAPO) syndrome, caused by loss-of-function mutations in TEM8. Although CMG2 and TEM8 are highly homologous at the protein level, the difference in disease symptoms points to variations in the physiological roles of the two anthrax receptors. Here, we focus on the similarities between these receptors in their ability to regulate extracellular matrix homeostasis, angiogenesis, cell migration, and skin elasticity. In this way, we shed light on how mutations in these two related proteins cause such seemingly different diseases and we highlight the existing knowledge gaps that could form the focus of future studies.
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Affiliation(s)
- Oksana A. Sergeeva
- Global Health Institute, School of Life Sciences, EPFL, Lausanne, Switzerland
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15
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A comparative analysis of secreted protein disulfide isomerases from the tropical co-endemic parasites Schistosoma mansoni and Leishmania major. Sci Rep 2019; 9:9568. [PMID: 31267027 PMCID: PMC6606611 DOI: 10.1038/s41598-019-45709-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Accepted: 06/10/2019] [Indexed: 12/19/2022] Open
Abstract
The human parasites Schistosoma mansoni and Leishmania major are co-endemic and a major threat to human health. Though displaying different tissue tropisms, they excrete/secrete similar subsets of intracellular proteins that, interacting with the host extracellular matrix (ECM), help the parasites invading the host. We selected one of the most abundant proteins found in the secretomes of both parasites, protein disulfide isomerase (PDI), and performed a comparative screening with surface plasmon resonance imaging (SPRi), looking for ECM binding partners. Both PDIs bind heparan sulfate; none of them binds collagens; each of them binds further ECM components, possibly linked to the different tropisms. We investigated by small-angle X-ray scattering both PDIs structures and those of a few complexes with host partners, in order to better understand the differences within this conserved family fold. Furthermore, we highlighted a previously undisclosed moonlighting behaviour of both PDIs, namely a concentration-dependent switch of function from thiol-oxidoreductase to holdase. Finally, we have tried to exploit the differences to look for possible compounds able to interfere with the redox activity of both PDI.
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16
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Crawford T, Fletcher N, Veitch M, Gonzalez Cruz JL, Pett N, Brereton I, Wells JW, Mobli M, Tesiram Y. Bacillus anthracis Protective Antigen Shows High Specificity for a UV Induced Mouse Model of Cutaneous Squamous Cell Carcinoma. Front Med (Lausanne) 2019; 6:22. [PMID: 30809524 PMCID: PMC6379334 DOI: 10.3389/fmed.2019.00022] [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: 09/08/2018] [Accepted: 01/24/2019] [Indexed: 11/13/2022] Open
Abstract
Squamous cell carcinoma (SCC) accounts for the majority of non-melanoma skin cancer related deaths, particularly in immunosuppressed persons. Identification of biomarkers that could be used to identify or treat SCC would be of significant benefit. The anthrax toxin receptors, Tumor Endothelial Marker 8 (TEM8) and Capillary Morphogenesis Gene 2 (CMG2), are endothelial receptors involved in extracellular matrix homeostasis and angiogenesis that are selectively upregulated on numerous tumors. One method of targeting these receptors is Protective Antigen (PA), a protein produced by B. anthracis that mediates binding and translocation of anthrax toxins into cells. PA targeted toxins have been demonstrated to selectively inhibit tumor growth and angiogenesis, but tumor selectivity of PA is currently unknown. In this work fluorescently labeled PA was shown to maintain receptor dependent binding and internalization in vitro. Utilizing a human papillomavirus transgenic mouse model that develops cutaneous SCC in response to ultraviolet irradiation we identified tumor uptake of PA in vivo. The intravenously administered PA resulted in tumor specific localization, with exclusive tumor detection 24 h post injection. Ex vivo analysis identified significantly higher fluorescence in the tumor compared to adjacent healthy tissue and major clearance organs, demonstrating low non-specific uptake and rapid clearance. While both TEM8 and CMG2 were observed to be overexpressed in SCC tumor sections compared to control skin, the intravenously administered PA was primarily co-localized with TEM8. These results suggest that PA could be systemically administered for rapid identification of cutaneous SCC, with potential for further therapeutic development.
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Affiliation(s)
- Theo Crawford
- Centre for Advanced Imaging (CAI), The University of Queensland, Brisbane, QLD, Australia
| | - Nicholas Fletcher
- Centre for Advanced Imaging (CAI), The University of Queensland, Brisbane, QLD, Australia.,Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD, Australia.,Australian Research Council (ARC) Centre of Excellence in Convergent BioNano Science and Technology, Queensland Node, The University of Queensland, Brisbane, QLD, Australia
| | - Margaret Veitch
- Faculty of Medicine, Translational Research Institute, University of Queensland Diamantina Institute, Brisbane, QLD, Australia
| | - Jazmina L Gonzalez Cruz
- Faculty of Medicine, Translational Research Institute, University of Queensland Diamantina Institute, Brisbane, QLD, Australia
| | - Nicola Pett
- Faculty of Medicine, Translational Research Institute, University of Queensland Diamantina Institute, Brisbane, QLD, Australia
| | - Ian Brereton
- Centre for Advanced Imaging (CAI), The University of Queensland, Brisbane, QLD, Australia
| | - James W Wells
- Faculty of Medicine, Translational Research Institute, University of Queensland Diamantina Institute, Brisbane, QLD, Australia
| | - Mehdi Mobli
- Centre for Advanced Imaging (CAI), The University of Queensland, Brisbane, QLD, Australia
| | - Yasvir Tesiram
- Centre for Advanced Imaging (CAI), The University of Queensland, Brisbane, QLD, Australia
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17
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Role of ANTXR1 in the regulation of RANKL-induced osteoclast differentiation and function. Biochem Biophys Res Commun 2019; 510:296-302. [PMID: 30686531 DOI: 10.1016/j.bbrc.2019.01.094] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Accepted: 01/19/2019] [Indexed: 11/21/2022]
Abstract
Anthrax toxin receptor 1 (ANTXR1) is a transmembrane protein with an extracellular domain which is deeply associated with the process of bone formation and plays an important role in angiogenesis. However, there have been no reports investigating the effects of ANTXR1 on bone metabolism mediated by the two types of bone cells, osteoclasts, and osteoblasts. The aim of this study is to reveal the role of ANTXR1 in the differentiation and function of osteoclasts and osteoblasts. We found that ANTXR1 positively regulated the receptor activator of nuclear factor kappa B ligand (RANKL)-induced osteoclast differentiation and bone resorption with no effects on osteoblast differentiation by performing gain- and loss-of-function studies. During ANTXR1-mediated regulation of osteoclastogenesis, phosphorylation of early signal transducers such as c-Jun N-terminal kinase (JNK), Akt, inhibitor of kappa B (IκB), and phospholipase C gamma 2 (PLCγ2) was affected, which in turn altered the mRNA and protein levels of c-Fos and nuclear factor of activated T cells cytoplasmic 1 (NFATc1). In addition, genetic manipulation of ANTXR1 in bone marrow macrophages (BMMs) modulated the capillary-like tube formation in HUVECs via secretion of two angiogenic factors, matrix metalloproteinase-9 (MMP-9) and vascular endothelial growth factor-A (VEGF-A). These results elucidated the importance of ANTXR1 in osteoclast differentiation and functional activity, as well as, osteoclast-mediated angiogenesis of endothelial cells. Taken together, we propose that ANTXR1 might be a promising candidate for gene therapy for bone metabolic diseases and further, might potentially serve as an important biomarker in the field of bone metastasis associated with vascularization.
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18
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Lee SE, Schulze K, Stewart CP, Cole RN, Wu LSF, Eroglu A, Yager JD, Groopman J, Christian P, West KP. Plasma proteome correlates of lipid and lipoprotein: biomarkers of metabolic diversity and inflammation in children of rural Nepal. J Lipid Res 2018; 60:149-160. [PMID: 30473544 PMCID: PMC6314253 DOI: 10.1194/jlr.p088542] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 10/25/2018] [Indexed: 12/14/2022] Open
Abstract
Proteins involved in lipoprotein metabolism can modulate cardiovascular health. While often measured to assess adult metabolic diseases, little is known about the proteomes of lipoproteins and their relation to metabolic dysregulation and underlying inflammation in undernourished child populations. The objective of this population study was to globally characterize plasma proteins systemically associated with HDL, LDL, and triglycerides in 500 Nepalese children. Abnormal lipid profiles characterized by elevated plasma triglycerides and low HDL-cholesterol (HDL-C) concentrations were common, especially in children with subclinical inflammation. Among 982 proteins analyzed, the relative abundance of 11, 12, and 52 plasma proteins was correlated with LDL-cholesterol (r = −0.43∼0.70), triglycerides (r = −0.39∼0.53), and HDL-C (r = −0.49∼0.79) concentrations, respectively. These proteins included apolipoproteins and numerous unexpected intracellular and extracellular matrix binding proteins, likely originating in hepatic and peripheral tissues. Relative abundance of two-thirds of the HDL proteome varied with inflammation, with acute phase reactants higher by 4∼40%, and proteins involved in HDL biosynthesis, cholesterol efflux, vitamin transport, angiogenesis, and tissue repair lower by 3∼20%. Untargeted plasma proteomics detects comprehensive sets of both known and novel lipoprotein-associated proteins likely reflecting systemic regulation of lipoprotein metabolism and vascular homeostasis. Inflammation-altered distributions of the HDL proteome may be predisposing undernourished populations to early chronic disease.
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Affiliation(s)
- Sun Eun Lee
- Center for Human Nutrition Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Kerry Schulze
- Center for Human Nutrition Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Christine P Stewart
- Program in International and Community Nutrition, Department of Nutrition, University of California, Davis, CA
| | - Robert N Cole
- Mass Spectrometry and Proteomics Facility, Johns Hopkins School of Medicine, Baltimore, MD
| | - Lee S-F Wu
- Center for Human Nutrition Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Abdulkerim Eroglu
- Center for Human Nutrition Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - James D Yager
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - John Groopman
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Parul Christian
- Center for Human Nutrition Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
| | - Keith P West
- Center for Human Nutrition Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
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19
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Ahmed B, Gritli S. Telogen hair loss and androgenetic-like alopecia in GAPO syndrome. Australas J Dermatol 2018; 60:e142-e144. [PMID: 30255493 DOI: 10.1111/ajd.12937] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 08/31/2018] [Indexed: 01/05/2023]
Abstract
Growth retardation, Alopecia, Pseudoanodontia and Optic atrophy (GAPO) syndrome is a rare autosomal recessive condition whose cardinal features include a recognizable craniofacial dysmorphosis, growth retardation, alopecia, pseudoanodontia, and premature aging. We report on a 2-year-old Pakistani man affected with GAPO syndrome who additionally shows an androgenetic-like alopecia with normal testosterone levels and telogen hair loss. These are novel findings in GAPO syndrome.
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Affiliation(s)
- Burhan Ahmed
- Department of Dermatology and Dermatological Surgery, Jinnah Hospital, Lahore, Pakistan
| | - Sami Gritli
- Department of Developmental Biology, Harvard School of Dental Medicine and Harvard Medical School, Boston, Massachusetts, USA
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20
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Høye AM, Tolstrup SD, Horton ER, Nicolau M, Frost H, Woo JH, Mauldin JP, Frankel AE, Cox TR, Erler JT. Tumor endothelial marker 8 promotes cancer progression and metastasis. Oncotarget 2018; 9:30173-30188. [PMID: 30046396 PMCID: PMC6059023 DOI: 10.18632/oncotarget.25734] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 06/22/2018] [Indexed: 12/22/2022] Open
Abstract
Every year more than 8 million people suffer from cancer-related deaths worldwide [1]. Metastasis, the spread of cancer to distant sites, accounts for 90% of these deaths. A promising target for blocking tumor progression, without causing severe side effects [2], is Tumor Endothelial Marker 8 (TEM8), an integrin-like cell surface protein expressed predominantly in the tumor endothelium and in cancer cells [3, 4]. Here, we have investigated the role of TEM8 in cancer progression, angiogenesis and metastasis in invasive breast cancer, and validated the main findings and important results in colorectal cancer. We show that the loss of TEM8 in cancer cells results in inhibition of cancer progression, reduction in tumor angiogenesis and reduced metastatic burden in breast cancer mouse models. Furthermore, we show that TEM8 regulates cancer progression by affecting the expression levels of cell cycle-related genes. Taken together, our findings may have broad clinical and therapeutic potential for breast and colorectal primary tumor and metastasis treatment by targeting TEM8.
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Affiliation(s)
- Anette M Høye
- Biotech Research and Innovation Centre (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen (UCPH), Copenhagen, Denmark
| | - Sofie D Tolstrup
- Biotech Research and Innovation Centre (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen (UCPH), Copenhagen, Denmark
| | - Edward R Horton
- Biotech Research and Innovation Centre (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen (UCPH), Copenhagen, Denmark
| | - Monica Nicolau
- Biotech Research and Innovation Centre (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen (UCPH), Copenhagen, Denmark
| | - Helen Frost
- Biotech Research and Innovation Centre (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen (UCPH), Copenhagen, Denmark
| | - Jung H Woo
- Baylor Scott and White Health, Temple, TX, USA
| | | | - Arthur E Frankel
- University of South Alabama Mitchell Cancer Institute, Mobile, AL, USA
| | - Thomas R Cox
- Biotech Research and Innovation Centre (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen (UCPH), Copenhagen, Denmark.,The Garvan Institute of Medical Research and The Kinghorn Cancer Centre, Cancer Division, St Vincent's Clinical School, Faculty of Medicine, UNSW, Sydney, Australia
| | - Janine T Erler
- Biotech Research and Innovation Centre (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen (UCPH), Copenhagen, Denmark
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21
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Salza R, Lethias C, Ricard-Blum S. The Multimerization State of the Amyloid-β42 Amyloid Peptide Governs its Interaction Network with the Extracellular Matrix. J Alzheimers Dis 2018; 56:991-1005. [PMID: 28106549 DOI: 10.3233/jad-160751] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The goals of this work were i) to identify the interactions of amyloid-β (Aβ)42 under monomeric, oligomeric, and fibrillar forms with the extracellular matrix (ECM) and receptors, ii) to determine the influence of Aβ42 supramolecular organization on these interactions, and iii) to identify the molecular functions, biological processes, and pathways targeted by Aβ42 in the ECM. The ECM and cell surface partners of Aβ42 and its supramolecular forms were identified with protein and glycosaminoglycan (GAG) arrays (81 molecules in triplicate) probed by surface plasmon resonance imaging. The number of partners of Aβ42 increased upon its multimerization, ranging from 4 for the peptide up to 53 for the fibrillar aggregates. The peptide interacted only with ECM proteins but their percentage among Aβ42 partners decreased upon multimerization. Aβ42 and its supramolecular forms recognized different molecular features on their partners, and the partners of Aβ42 fibrillar forms were enriched in laminin IV-A, N-terminal, and EGF-like domains. Aβ42 oligomerization triggered interactions with receptors, whereas Aβ42 fibrillogenesis promoted binding to GAGs, proteoglycans, enzymes, and growth factors and the ability to interact with perineuronal nets. Fibril aggregation bind to further membrane proteins including tumor endothelial marker-8, syndecan-4, and discoidin-domain receptor-2. The partners of the Aβ42 supramolecular forms are enriched in proteins contributing to cell growth and/or maintenance, involved in integrin cell surface interactions and expressed in kidney cancer, preadipocytes, and dentin. In conclusion, the supramolecular assembly of Aβ42 governs its ability to interact in vitro with ECM proteins, remodeling and crosslinking ECM enzymes, proteoglycans, and receptors.
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Affiliation(s)
- Romain Salza
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires (ICBMS), UMR 5246 CNRS - Université Lyon 1, Villeurbanne cedex, France
| | - Claire Lethias
- Laboratoire de Biologie Tissulaire et d'Ingénierie Thérapeutique (LBTI), UMR 5305 CNRS - Université Lyon 1, Lyon, Cedex 07, France
| | - Sylvie Ricard-Blum
- Institut de Chimie et Biochimie Moléculaires et Supramoléculaires (ICBMS), UMR 5246 CNRS - Université Lyon 1, Villeurbanne cedex, France
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22
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Lamandé SR, Bateman JF. Collagen VI disorders: Insights on form and function in the extracellular matrix and beyond. Matrix Biol 2017; 71-72:348-367. [PMID: 29277723 DOI: 10.1016/j.matbio.2017.12.008] [Citation(s) in RCA: 105] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 12/13/2017] [Accepted: 12/16/2017] [Indexed: 12/18/2022]
Abstract
Mutations in the three canonical collagen VI genes, COL6A1, COL6A2 and COL6A3, cause a spectrum of muscle disease from Bethlem myopathy at the mild end to the severe Ullrich congenital muscular dystrophy. Mutations can be either dominant or recessive and the resulting clinical severity is influenced by the way mutations impact the complex collagen VI assembly process. Most mutations are found towards the N-terminus of the triple helical collagenous domain and compromise extracellular microfibril assembly. Outside the triple helix collagen VI is highly polymorphic and discriminating mutations from rare benign changes remains a major diagnostic challenge. Collagen VI deficiency alters extracellular matrix structure and biomechanical properties and leads to increased apoptosis and oxidative stress, decreased autophagy, and impaired muscle regeneration. Therapies that target these downstream consequences have been tested in a collagen VI null mouse and also in small human trials where they show modest clinical efficacy. An important role for collagen VI in obesity, cancer and diabetes is emerging. A major barrier to developing effective therapies is the paucity of information about how collagen VI deficiency in the extracellular matrix signals the final downstream consequences - the receptors involved and the intracellular messengers await further characterization.
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Affiliation(s)
- Shireen R Lamandé
- Musculoskeletal Research, Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Vic, Australia; Department of Paediatrics, University of Melbourne, Parkville, Vic, Australia.
| | - John F Bateman
- Musculoskeletal Research, Murdoch Children's Research Institute, Royal Children's Hospital, Parkville, Vic, Australia; Department of Biochemistry and Molecular Biology, University of Melbourne, Parkville, Vic, Australia
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23
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Hu K, Olsen BR. Vascular endothelial growth factor control mechanisms in skeletal growth and repair. Dev Dyn 2017; 246:227-234. [PMID: 27750398 PMCID: PMC5354946 DOI: 10.1002/dvdy.24463] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Accepted: 10/01/2016] [Indexed: 01/04/2023] Open
Abstract
Vascular endothelial growth factor A (VEGF) is a critical regulator of vascular development and postnatal angiogenesis and homeostasis, and it is essential for bone development and repair. Blood vessels serve both as structural templates for bone formation and they provide essential cells, growth factors and minerals needed for synthesis and mineralization, as well as turnover, of the extracellular matrix in bone. Through its regulation of angiogenesis, VEGF contributes to coupling of osteogenesis to angiogenesis, and it directly controls the differentiation and function of osteoblasts and osteoclasts. In this review, we summarize the properties of VEGF and its receptors that are relevant to bone formation and repair; the roles of VEGF during development of endochondral and membranous bones; and the contributions of VEGF to bone healing during different phases of bone repair. Finally, we discuss contributions of altered VEGF function in inherited disorders with bone defects as part of their phenotypes, and we speculate on what will be required before therapeutic strategies based on VEGF modulation can be developed for clinical use to treat patients with bone growth disorders and/or compromised bone repair. Developmental Dynamics 246:227-234, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Kai Hu
- Department of Developmental Biology, Harvard School of Dental Medicine, Boston, Massachusetts
| | - Bjorn R Olsen
- Department of Developmental Biology, Harvard School of Dental Medicine, Boston, Massachusetts
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24
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Hu K, Olsen BR, Besschetnova TY. Cell autonomous ANTXR1-mediated regulation of extracellular matrix components in primary fibroblasts. Matrix Biol 2016; 62:105-114. [PMID: 28011198 DOI: 10.1016/j.matbio.2016.12.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 12/06/2016] [Accepted: 12/09/2016] [Indexed: 12/28/2022]
Abstract
Our previous studies of Antxr1 knockout mice suggested that fibrotic skin abnormalities in these mice are associated with increased VEGF signaling. Here, based on studies of primary fibroblasts isolated from skin of Antx1+/+ and Antxr1-/- mice at embryonic stage E17.5 and postnatal day P49, we conclude that increased Col1a1 and Fn1 expression in Antxr1-deficient fibroblasts is partly mediated by a cell-autonomous ANTXR1-dependent mechanism. In turn, this may act in parallel with VEGF-dependent regulation of collagen type I and fibronectin production. We demonstrate that shRNA mediated knockdown of VEGF in Antxr1-/- fibroblasts reduces Col1a1 and Fn1 expression to below control levels, and these are restored by exogenous addition of recombinant VEGF. In addition, the increase in protein levels of collagen type I and fibronectin in mutant cells is blocked by VEGF neutralizing antibody. However, expressing the longest isoform of ANTXR1 (sv1) in mutant fibroblasts decreases levels of Ctgf, Col1a1 and Fn1 transcripts, but has no effect on VEGF expression. Taken together, our data suggest that the increased matrix production in Antxr1- deficient fibroblasts primarily occurs via a CTGF-dependent pathway and that other ANTXR1-associated mechanisms contribute to VEGF-dependent increase of collagen type I and fibronectin expression. Our findings provide a basis for further studies of novel ANTXR1-dependent connective tissue homeostatic control mechanisms in healthy individuals, patients with organ fibrosis, and patients with GAPO syndrome.
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Affiliation(s)
- Kai Hu
- Department of Developmental Biology, Harvard School of Dental Medicine, Boston, MA, United States
| | - Bjorn R Olsen
- Department of Developmental Biology, Harvard School of Dental Medicine, Boston, MA, United States; Department of Cell Biology, Harvard Medical School, United States
| | - Tatiana Y Besschetnova
- Department of Developmental Biology, Harvard School of Dental Medicine, Boston, MA, United States; Department of Oral and Maxillofacial Surgery/Skeletal Biology Research Center, Massachusetts General Hospital and Harvard School of Dental Medicine, Boston, MA, United States.
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Biomarkers Discovery for Colorectal Cancer: A Review on Tumor Endothelial Markers as Perspective Candidates. DISEASE MARKERS 2016; 2016:4912405. [PMID: 27965519 PMCID: PMC5124654 DOI: 10.1155/2016/4912405] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2016] [Revised: 10/02/2016] [Accepted: 10/16/2016] [Indexed: 02/07/2023]
Abstract
Colorectal cancer (CRC) is the third most common cancer in the world. The early detection of CRC, during the promotion/progression stages, is an enormous challenge for a successful outcome and remains a fundamental problem in clinical approach. Despite the continuous advancement in diagnostic and therapeutic methods, there is a need for discovery of sensitive and specific, noninvasive biomarkers. Tumor endothelial markers (TEMs) are associated with tumor-specific angiogenesis and are potentially useful to discriminate between tumor and normal endothelium. The most promising TEMs for oncogenic signaling in CRC appeared to be the TEM1, TEM5, TEM7, and TEM8. Overexpression of TEMs especially TEM1, TEM7, and TEM8 in colorectal tumor tissue compared to healthy tissue suggests their role in tumor blood vessels formation. Thus TEMs appear to be perspective candidates for early detection, monitoring, and treatment of CRC patients. This review provides an update on recent data on tumor endothelial markers and their possible use as biomarkers for screening, diagnosis, and therapy of colorectal cancer patients.
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Olsen BR, Berendsen AD, Besschetnova TY, Duan X, Hu K. Fell-Muir Lecture: Regulatory mechanisms of skeletal and connective tissue development and homeostasis - lessons from studies of human disorders. Int J Exp Pathol 2016; 97:296-302. [PMID: 27581728 DOI: 10.1111/iep.12198] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Accepted: 07/28/2016] [Indexed: 12/27/2022] Open
Abstract
Studies of proliferative hemangiomas have led to the discovery that interactions of endothelial cells with extracellular matrix and/or Vascular Endothelial Growth Factor (VEGF)-A stimulate the expression of VEGFR1, the VEGF decoy receptor, and suppress VEGF-dependent VEGFR2 signalling by a mechanism that requires the matrix-binding receptor Anthrax Toxin Receptor (ANTXR)1, VEGFR2, β1 integrin and the Nuclear Factor of Activated T cells (NFAT). In hemangioma endothelial cells, all these components are present, but are functionally compromised, so that the levels of VEGFR1 are extremely low and VEGFR2 signalling is constitutively active. Consequently, the levels of Hypoxia Inducible Factor (HIF)-1α and its transcriptional targets, VEGF-A and C-X-C motif chemokine 12 (CxCl12), are elevated and a positive VEGF-A feedback loop is established. Overexpression of ANTXR1, carrying a heterozygous Ala-to-Thr mutation, induces hemangioma-like signalling in control endothelial cells; VEGF signalling is normalized when wild-type ANTXR1 is overexpressed in hemangioma cells. These findings suggest that ANTXR1 functions as a negative regulator of VEGF-A signalling. Studies of a mouse model of the Growth Retardation, Alopecia, Pseudo-anodontia and Optic Atrophy (GAPO) syndrome, caused by the loss-of-function mutations in ANTXR1, as well as knock-in mice carrying the Ala-to-Thr ANTXR1 mutation, confirm that ANTXR1 functions as a suppressor of VEGF-A signalling. Cutaneous endothelial cells isolated from ANTXR1-deficient mice exhibit low levels of VEGFR1, elevated levels of VEGF-A, HIF-1α and CxCl12 and activated VEGFR2 signalling as in hemangioma. Increased numbers of myeloid cells in the skin of ANTXR1-deficient mice are associated with reduced vascularity and increased skin fibrosis, suggesting a mechanism for hemangioma involution and replacement by fibrotic scars. Through controlling VEGF-A signalling and extracellular matrix synthesis, ANTXR1 is emerging as a key regulator of skeletal and connective tissue development and homeostasis.
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Affiliation(s)
- Bjorn R Olsen
- Department of Developmental Biology, Harvard School of Dental Medicine, Boston, MA, USA.
| | - Agnes D Berendsen
- Department of Developmental Biology, Harvard School of Dental Medicine, Boston, MA, USA
| | | | - Xuchen Duan
- Department of Developmental Biology, Harvard School of Dental Medicine, Boston, MA, USA
| | - Kai Hu
- Department of Developmental Biology, Harvard School of Dental Medicine, Boston, MA, USA
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Valente TS, Baldi F, Sant’Anna AC, Albuquerque LG, Paranhos da Costa MJR. Genome-Wide Association Study between Single Nucleotide Polymorphisms and Flight Speed in Nellore Cattle. PLoS One 2016; 11:e0156956. [PMID: 27300296 PMCID: PMC4907449 DOI: 10.1371/journal.pone.0156956] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Accepted: 05/23/2016] [Indexed: 12/17/2022] Open
Abstract
Introduction Cattle temperament is an important factor that affects the profitability of beef cattle enterprises, due to its relationship with productivity traits, animal welfare and labor safety. Temperament is a complex phenotype often assessed by measuring a series of behavioral traits, which result from the effects of multiple environmental and genetic factors, and their interactions. The aims of this study were to perform a genome-wide association study and detect genomic regions, potential candidate genes and their biological mechanisms underlying temperament, measured by flight speed (FS) test in Nellore cattle. Materials and Methods The genome-wide association study (GWAS) was performed using a single-step procedure (ssGBLUP) which combined simultaneously all 16,600 phenotypes from genotyped and non-genotyped animals, full pedigree information of 162,645 animals and 1,384 genotyped animals in one step. The animals were genotyped with High Density Bovine SNP BeadChip which contains 777,962 SNP markers. After quality control (QC) a total of 455,374 SNPs remained. Results Heritability estimated for FS was 0.21 ± 0.02. Consecutive SNPs explaining 1% or more of the total additive genetic variance were considered as windows associated with FS. Nine candidate regions located on eight different Bos taurus chromosomes (BTA) (1 at 73 Mb, 2 at 65 Mb, 5 at 22 Mb and 119 Mb, 9 at 98 Mb, 11 at 67 Mb, 15 at 16 Mb, 17 at 63 Kb, and 26 at 47 Mb) were identified. The candidate genes identified in these regions were NCKAP5 (BTA2), PARK2 (BTA9), ANTXR1 (BTA11), GUCY1A2 (BTA15), CPE (BTA17) and DOCK1 (BTA26). Among these genes PARK2, GUCY1A2, CPE and DOCK1 are related to dopaminergic system, memory formation, biosynthesis of peptide hormone and neurotransmitter and brain development, respectively. Conclusions Our findings allowed us to identify nine genomic regions (SNP windows) associated with beef cattle temperament, measured by FS test. Within these windows, six promising candidate genes and their biological functions were identified. These results may contribute to a better comprehension into the genetic control of temperament expression in Nellore cattle.
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Affiliation(s)
- Tiago Silva Valente
- Universidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias e Veterinárias, Departamento de Zootecnia, Via de Acesso Professor Paulo Donato Castellane, Jaboticabal, SP 14.884-900, Brazil
| | - Fernando Baldi
- Universidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias e Veterinárias, Departamento de Zootecnia, Via de Acesso Professor Paulo Donato Castellane, Jaboticabal, SP 14.884-900, Brazil
| | - Aline Cristina Sant’Anna
- Universidade Federal de Juiz de Fora (UFJF), Instituto de Ciências Biológicas, Departamento de Zoologia, Rua José Lourenço Kelmer, Juiz de Fora, MG 36.036-900, Brazil
| | - Lucia Galvão Albuquerque
- Universidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias e Veterinárias, Departamento de Zootecnia, Via de Acesso Professor Paulo Donato Castellane, Jaboticabal, SP 14.884-900, Brazil
| | - Mateus José Rodrigues Paranhos da Costa
- Universidade Estadual Paulista (Unesp), Faculdade de Ciências Agrárias e Veterinárias, Departamento de Zootecnia, Via de Acesso Professor Paulo Donato Castellane, Jaboticabal, SP 14.884-900, Brazil
- * E-mail:
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