1
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Kheirollahi A, Sadeghi S, Orandi S, Moayedi K, Khajeh K, Khoobi M, Golestani A. Chondroitinase as a therapeutic enzyme: Prospects and challenges. Enzyme Microb Technol 2024; 172:110348. [PMID: 37898093 DOI: 10.1016/j.enzmictec.2023.110348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 09/28/2023] [Accepted: 10/19/2023] [Indexed: 10/30/2023]
Abstract
The chondroitinases (Chase) are bacterial lyases that specifically digest chondroitin sulfate and/or dermatan sulfate glycosaminoglycans via a β-elimination reaction and generate unsaturated disaccharides. In recent decades, these enzymes have attracted the attention of many researchers due to their potential applications in various aspects of medicine from the treatment of spinal cord injury to use as an analytical tool. In spite of this diverse spectrum, the application of Chase is faced with several limitations and challenges such as thermal instability and lack of a suitable delivery system. In the current review, we address potential therapeutic applications of Chase with emphasis on the challenges ahead. Then, we summarize the latest achievements to overcome the problems by considering the studies carried out in the field of enzyme engineering, drug delivery, and combination-based therapy.
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Affiliation(s)
- Asma Kheirollahi
- Department of Comparative Biosciences, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Solmaz Sadeghi
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Shirin Orandi
- Department of Clinical Biochemistry, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Kiana Moayedi
- Department of Clinical Biochemistry, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Khosro Khajeh
- Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran 14115-154, Iran
| | - Mehdi Khoobi
- Department of Radiopharmacy, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran; Department of Pharmaceutical Biomaterials and Medical Biomaterials Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Abolfazl Golestani
- Department of Clinical Biochemistry, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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2
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Hashimoto A, Hirose T, Hashimoto K, Mizumoto S, Nitahara-Kasahara Y, Saka S, Yoshizawa T, Okada T, Yamada S, Kosho T, Watanabe T, Miyata S, Nomura Y. Collagen Network Formation in In Vitro Models of Musculocontractural Ehlers-Danlos Syndrome. Genes (Basel) 2023; 14:genes14020308. [PMID: 36833235 PMCID: PMC9957042 DOI: 10.3390/genes14020308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/05/2023] [Accepted: 01/18/2023] [Indexed: 01/26/2023] Open
Abstract
Loss-of-function mutations in carbohydrate sulfotransferase 14 (CHST14) cause musculocontractural Ehlers-Danlos syndrome-CHST14 (mcEDS-CHST14), characterized by multiple congenital malformations and progressive connective tissue fragility-related manifestations in the cutaneous, skeletal, cardiovascular, visceral and ocular system. The replacement of dermatan sulfate chains on decorin proteoglycan with chondroitin sulfate chains is proposed to lead to the disorganization of collagen networks in the skin. However, the pathogenic mechanisms of mcEDS-CHST14 are not fully understood, partly due to the lack of in vitro models of this disease. In the present study, we established in vitro models of fibroblast-mediated collagen network formation that recapacitate mcEDS-CHST14 pathology. Electron microscopy analysis of mcEDS-CHST14-mimicking collagen gels revealed an impaired fibrillar organization that resulted in weaker mechanical strength of the gels. The addition of decorin isolated from patients with mcEDS-CHST14 and Chst14-/- mice disturbed the assembly of collagen fibrils in vitro compared to control decorin. Our study may provide useful in vitro models of mcEDS-CHST14 to elucidate the pathomechanism of this disease.
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Affiliation(s)
- Ayana Hashimoto
- Graduate School of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo 183-8509, Japan
| | - Takuya Hirose
- Laboratory of Veterinary Anatomy, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu 069-8501, Hokkaido, Japan
| | - Kohei Hashimoto
- Graduate School of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo 183-8509, Japan
| | - Shuji Mizumoto
- Department of Pathobiochemistry, Faculty of Pharmacy, Meijo University, Nagoya 468-8503, Aichi, Japan
| | - Yuko Nitahara-Kasahara
- Division of Molecular and Medical Genetics, Center for Gene and Cell Therapy, The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo 108-8639, Japan
| | - Shota Saka
- Graduate School of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo 183-8509, Japan
| | - Takahiro Yoshizawa
- Division of Animal Research, Research Center for Advanced Science and Technology, Shinshu University, Matsumoto 390-8621, Nagano, Japan
| | - Takashi Okada
- Division of Molecular and Medical Genetics, Center for Gene and Cell Therapy, The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo 108-8639, Japan
| | - Shuhei Yamada
- Department of Pathobiochemistry, Faculty of Pharmacy, Meijo University, Nagoya 468-8503, Aichi, Japan
| | - Tomoki Kosho
- Department of Medical Genetics, Shinshu University School of Medicine, Matsumoto 390-8621, Nagano, Japan
- Center for Medical Genetics, Shinshu University Hospital, Matsumoto 390-8621, Nagano, Japan
- Division of Clinical Sequencing, Shinshu University School of Medicine, Matsumoto 390-8621, Nagano, Japan
- Research Center for Supports to Advanced Science, Matsumoto 390-8621, Nagano, Japan
| | - Takafumi Watanabe
- Laboratory of Veterinary Anatomy, School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu 069-8501, Hokkaido, Japan
| | - Shinji Miyata
- Graduate School of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo 183-8509, Japan
- Correspondence:
| | - Yoshihiro Nomura
- Graduate School of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwaicho, Fuchu, Tokyo 183-8509, Japan
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The Specific Role of Dermatan Sulfate as an Instructive Glycosaminoglycan in Tissue Development. Int J Mol Sci 2022; 23:ijms23137485. [PMID: 35806490 PMCID: PMC9267682 DOI: 10.3390/ijms23137485] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/02/2022] [Accepted: 07/03/2022] [Indexed: 11/16/2022] Open
Abstract
The crucial roles of dermatan sulfate (DS) have been demonstrated in tissue development of the cutis, blood vessels, and bone through construction of the extracellular matrix and cell signaling. Although DS classically exerts physiological functions via interaction with collagens, growth factors, and heparin cofactor-II, new functions have been revealed through analyses of human genetic disorders as well as of knockout mice with loss of DS-synthesizing enzymes. Mutations in human genes encoding the epimerase and sulfotransferase responsible for the biosynthesis of DS chains cause connective tissue disorders including spondylodysplastic type Ehlers–Danlos syndrome, characterized by skin hyperextensibility, joint hypermobility, and tissue fragility. DS-deficient mice show perinatal lethality, skin fragility, vascular abnormalities, thoracic kyphosis, myopathy-related phenotypes, acceleration of nerve regeneration, and impairments in self-renewal and proliferation of neural stem cells. These findings suggest that DS is essential for tissue development in addition to the assembly of collagen fibrils in the skin, and that DS-deficient knockout mice can be utilized as models of human genetic disorders that involve impairment of DS biosynthesis. This review highlights a novel role of DS in tissue development studies from the past decade.
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Desole C, Gallo S, Vitacolonna A, Vigna E, Basilico C, Montarolo F, Zuppini F, Casanova E, Miggiano R, Ferraris DM, Bertolotto A, Comoglio PM, Crepaldi T. Engineering, Characterization, and Biological Evaluation of an Antibody Targeting the HGF Receptor. Front Immunol 2021; 12:775151. [PMID: 34925346 PMCID: PMC8679783 DOI: 10.3389/fimmu.2021.775151] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 11/08/2021] [Indexed: 11/13/2022] Open
Abstract
The Hepatocyte growth factor (HGF) and its receptor (MET) promote several physiological activities such as tissue regeneration and protection from cell injury of epithelial, endothelial, neuronal and muscle cells. The therapeutic potential of MET activation has been scrutinized in the treatment of acute tissue injury, chronic inflammation, such as renal fibrosis and multiple sclerosis (MS), cardiovascular and neurodegenerative diseases. On the other hand, the HGF-MET signaling pathway may be caught by cancer cells and turned to work for invasion, metastasis, and drug resistance in the tumor microenvironment. Here, we engineered a recombinant antibody (RDO24) and two derived fragments, binding the extracellular domain (ECD) of the MET protein. The antibody binds with high affinity (8 nM) to MET ECD and does not cross-react with the closely related receptors RON nor with Semaphorin 4D. Deletion mapping studies and computational modeling show that RDO24 binds to the structure bent on the Plexin-Semaphorin-Integrin (PSI) domain, implicating the PSI domain in its binding to MET. The intact RDO24 antibody and the bivalent Fab2, but not the monovalent Fab induce MET auto-phosphorylation, mimicking the mechanism of action of HGF that activates the receptor by dimerization. Accordingly, the bivalent recombinant molecules induce HGF biological responses, such as cell migration and wound healing, behaving as MET agonists of therapeutic interest in regenerative medicine. In vivo administration of RDO24 in the murine model of MS, represented by experimental autoimmune encephalomyelitis (EAE), delays the EAE onset, mitigates the early clinical symptoms, and reduces inflammatory infiltrates. Altogether, these results suggest that engineered RDO24 antibody may be beneficial in multiple sclerosis and possibly other types of inflammatory disorders.
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Affiliation(s)
- Claudia Desole
- Department of Oncology, University of Turin, Candiolo, Italy
| | - Simona Gallo
- Department of Oncology, University of Turin, Candiolo, Italy.,Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Italy
| | - Annapia Vitacolonna
- Department of Oncology, University of Turin, Candiolo, Italy.,Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Italy
| | - Elisa Vigna
- Department of Oncology, University of Turin, Candiolo, Italy.,Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Italy
| | | | - Francesca Montarolo
- Neuroscience Institute Cavalieri Ottolenghi (NICO), Orbassano, Italy.,Department of Molecular Biotechnology and Health Sciences, University of Turin, Torino, Italy
| | | | | | - Riccardo Miggiano
- Department of Pharmaceutical Sciences, University of Piemonte Orientale, Novara, Italy.,IXTAL srl, Novara, Italy
| | - Davide Maria Ferraris
- Department of Pharmaceutical Sciences, University of Piemonte Orientale, Novara, Italy.,IXTAL srl, Novara, Italy
| | | | | | - Tiziana Crepaldi
- Department of Oncology, University of Turin, Candiolo, Italy.,Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Italy
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5
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Hayes AJ, Melrose J. Neural Tissue Homeostasis and Repair Is Regulated via CS and DS Proteoglycan Motifs. Front Cell Dev Biol 2021; 9:696640. [PMID: 34409033 PMCID: PMC8365427 DOI: 10.3389/fcell.2021.696640] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 07/13/2021] [Indexed: 01/04/2023] Open
Abstract
Chondroitin sulfate (CS) is the most abundant and widely distributed glycosaminoglycan (GAG) in the human body. As a component of proteoglycans (PGs) it has numerous roles in matrix stabilization and cellular regulation. This chapter highlights the roles of CS and CS-PGs in the central and peripheral nervous systems (CNS/PNS). CS has specific cell regulatory roles that control tissue function and homeostasis. The CNS/PNS contains a diverse range of CS-PGs which direct the development of embryonic neural axonal networks, and the responses of neural cell populations in mature tissues to traumatic injury. Following brain trauma and spinal cord injury, a stabilizing CS-PG-rich scar tissue is laid down at the defect site to protect neural tissues, which are amongst the softest tissues of the human body. Unfortunately, the CS concentrated in gliotic scars also inhibits neural outgrowth and functional recovery. CS has well known inhibitory properties over neural behavior, and animal models of CNS/PNS injury have demonstrated that selective degradation of CS using chondroitinase improves neuronal functional recovery. CS-PGs are present diffusely in the CNS but also form denser regions of extracellular matrix termed perineuronal nets which surround neurons. Hyaluronan is immobilized in hyalectan CS-PG aggregates in these perineural structures, which provide neural protection, synapse, and neural plasticity, and have roles in memory and cognitive learning. Despite the generally inhibitory cues delivered by CS-A and CS-C, some CS-PGs containing highly charged CS disaccharides (CS-D, CS-E) or dermatan sulfate (DS) disaccharides that promote neural outgrowth and functional recovery. CS/DS thus has varied cell regulatory properties and structural ECM supportive roles in the CNS/PNS depending on the glycoform present and its location in tissue niches and specific cellular contexts. Studies on the fruit fly, Drosophila melanogaster and the nematode Caenorhabditis elegans have provided insightful information on neural interconnectivity and the role of the ECM and its PGs in neural development and in tissue morphogenesis in a whole organism environment.
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Affiliation(s)
- Anthony J. Hayes
- Bioimaging Research Hub, Cardiff School of Biosciences, Cardiff University, Wales, United Kingdom
| | - James Melrose
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, NSW, Australia
- Raymond Purves Bone and Joint Research Laboratories, Kolling Institute of Medical Research, Royal North Shore Hospital and The Faculty of Medicine and Health, The University of Sydney, St. Leonard’s, NSW, Australia
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6
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Satish L, Santra S, Tsurkan MV, Werner C, Jana M, Sahoo H. Conformational changes of GDNF-derived peptide induced by heparin, heparan sulfate, and sulfated hyaluronic acid - Analysis by circular dichroism spectroscopy and molecular dynamics simulation. Int J Biol Macromol 2021; 182:2144-2150. [PMID: 34087306 DOI: 10.1016/j.ijbiomac.2021.05.194] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 05/21/2021] [Accepted: 05/28/2021] [Indexed: 01/15/2023]
Abstract
Glial-cell-line-derived neurotrophic factor (GDNF) is a protein that has therapeutic potential in the treatment of Parkinson's disease and other neurodegenerative diseases. The activity of GDNF is highly dependent on the interaction with sulfated glycans which bind at the N-terminus consisting of 19 residues. Herein, we studied the influence of different glycosaminoglycan (i.e., glycan; GAG) molecules on the conformation of a GDNF-derived peptide (GAG binding motif, sixteen amino acid residues at the N-terminus) using both experimental and theoretical studies. The GAG molecules employed in this study are heparin, heparan sulfate, hyaluronic acid, and sulfated hyaluronic acid. Circular dichroism spectroscopy was employed to detect conformational changes induced by the GAG molecules; molecular dynamics simulation studies were performed to support the experimental results. Our results revealed that the sulfated GAG molecules bind strongly with GDNF peptide and induce alpha-helical structure in the peptide to some extent.
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Affiliation(s)
- Lakkoji Satish
- Biophysical and Protein Chemistry Laboratory, Department of Chemistry, National Institute of Technology Rourkela, Odisha 769008, India; School of Chemical Sciences, National Institute of Science Education and Research, HBNI, Bhubaneswar, Odisha 752050, India
| | - Santanu Santra
- Molecular Simulation Laboratory, Department of Chemistry, National Institute of Technology Rourkela, Odisha 769008, India
| | - Mikhail V Tsurkan
- Leibniz Institute of Polymer Research Dresden, Max Bergmann Center of Biomaterials, 01069 Dresden, Germany; Center for Regenerative Therapies Dresden, Technische Universität Dresden, 01307 Dresden, Germany
| | - Carsten Werner
- Leibniz Institute of Polymer Research Dresden, Max Bergmann Center of Biomaterials, 01069 Dresden, Germany; Center for Regenerative Therapies Dresden, Technische Universität Dresden, 01307 Dresden, Germany
| | - Madhurima Jana
- Molecular Simulation Laboratory, Department of Chemistry, National Institute of Technology Rourkela, Odisha 769008, India
| | - Harekrushna Sahoo
- Biophysical and Protein Chemistry Laboratory, Department of Chemistry, National Institute of Technology Rourkela, Odisha 769008, India; Center for Nanomaterials, National Institute of Technology Rourkela, Odisha 769008, India.
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7
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Shibata S, Shibata N, Ohtsuka S, Yoshitomi Y, Kiyokawa E, Yonekura H, Singh DP, Sasaki H, Kubo E. Role of Decorin in Posterior Capsule Opacification and Eye Lens Development. Cells 2021; 10:863. [PMID: 33918979 PMCID: PMC8070370 DOI: 10.3390/cells10040863] [Citation(s) in RCA: 7] [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: 02/25/2021] [Revised: 04/06/2021] [Accepted: 04/08/2021] [Indexed: 12/20/2022] Open
Abstract
Decorin (DCN) is involved in a variety of physiological and pathological processes. Epithelial-mesenchymal transition (EMT) of lens epithelial cells (LECs) has been proposed as a major cause for the development of posterior capsule opacification (PCO) after cataract surgery. We investigated the plausible target gene(s) that suppress PCO. The expression of Dcn was significantly upregulated in rat PCO tissues compared to that observed in the control using a microarray-based approach. LECs treated with fibroblast growth factor (FGF) 2 displayed an enhanced level of DCN expression, while LECs treated with transforming growth factor (TGF)β-2 showed a decrease in DCN expression. The expression of tropomyosin 1 (Tpm1), a marker of lens EMT increased after the addition of TGFβ-2 in human LEC; however, upregulation of Tpm1 mRNA or protein expression was reduced in human LECs overexpressing human DCN (hDCN). No phenotypic changes were observed in the lenses of 8- and 48-week-old transgenic mice for lens-specific hDCN (hDCN-Tg). Injury-induced EMT of the mouse lens, and the expression patterns of α smooth muscle actin, were attenuated in hDCN-Tg mice lenses. Overexpression of DCN inhibited the TGFβ-2-induced upregulation of Tpm1 and EMT observed during wound healing of the lens, but it did not affect mouse lens morphology until 48 weeks of age. Our findings demonstrate that DCN plays a significant role in regulating EMT formation of LECs and PCO, and suggest that for therapeutic intervention, maintenance of physiological expression of DCN is essential to attenuate EMT progression and PCO formation.
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Affiliation(s)
- Shinsuke Shibata
- Department of Ophthalmology, Kanazawa Medical University, Ishikawa 9200293, Japan; (S.S.); (N.S.); (H.S.)
| | - Naoko Shibata
- Department of Ophthalmology, Kanazawa Medical University, Ishikawa 9200293, Japan; (S.S.); (N.S.); (H.S.)
| | - Satoshi Ohtsuka
- Medical Research Institute, Kanazawa Medical University, Ishikawa 9200293, Japan;
- Laboratory for Experimental Animals, Kyoto Prefectural University of Medicine, Kyoto 6028566, Japan
| | - Yasuo Yoshitomi
- Department of Biochemistry, Kanazawa Medical University, Ishikawa 9200293, Japan; (Y.Y.); (H.Y.)
| | - Etsuko Kiyokawa
- Department of Oncogenic Pathology, Kanazawa Medical University, Ishikawa 9200293, Japan;
| | - Hideto Yonekura
- Department of Biochemistry, Kanazawa Medical University, Ishikawa 9200293, Japan; (Y.Y.); (H.Y.)
| | - Dhirendra P. Singh
- Department of Ophthalmology, University of Nebraska Medical Center, Omaha, NE 68198, USA;
| | - Hiroshi Sasaki
- Department of Ophthalmology, Kanazawa Medical University, Ishikawa 9200293, Japan; (S.S.); (N.S.); (H.S.)
| | - Eri Kubo
- Department of Ophthalmology, Kanazawa Medical University, Ishikawa 9200293, Japan; (S.S.); (N.S.); (H.S.)
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Gallo S, Spilinga M, Albano R, Ferrauto G, Di Gregorio E, Casanova E, Balmativola D, Bonzano A, Boccaccio C, Sapino A, Comoglio PM, Crepaldi T. Activation of the MET receptor attenuates doxorubicin-induced cardiotoxicity in vivo and in vitro. Br J Pharmacol 2020; 177:3107-3122. [PMID: 32133617 PMCID: PMC7280013 DOI: 10.1111/bph.15039] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 02/11/2020] [Accepted: 02/19/2020] [Indexed: 12/16/2022] Open
Abstract
Background and Purpose Doxorubicin anti‐cancer therapy is associated with cardiotoxicity, resulting from DNA damage response (DDR). Hepatocyte growth factor (HGF) protects cardiomyocytes from injury, but its effective use is compromised by low biodistribution. In this study, we have investigated whether the activation of the HGF receptor—encoded by the Met gene—by an agonist monoclonal antibody (mAb) could protect against doxorubicin‐induced cardiotoxicity. Experimental Approach The mAb (5 mg·kg−1) was injected in vivo into C57BL/6J mice, before doxorubicin (three doses of 7 mg·kg−1). Cardiac functions were evaluated through MRI after treatment termination. Heart histological staining and mRNA levels of genes associated with heart failure (Acta1 and Nppa), inflammation (IL‐6), and fibrosis (Ctgf, Col1a2, Timp1, and Mmp9) were assessed. MAb (100 nM) was administered in vitro to H9c2 cardiomyoblasts before addition of doxorubicin (25 μM). DDR and apoptosis markers were evaluated by quantitative western blotting, flow cytometry, and immunofluorescence. Stattic was used for pharmacological inactivation of STAT3. Key Results In vivo, administration of the mAb alleviated doxorubicin‐induced cardiac dysfunction and fibrosis. In vitro, mAb mimicked the response to HGF by (a) inhibiting histone H2AX phosphorylation at S139, (b) quenching the expression of the DNA repair enzyme PARP1, and (c) reducing the proteolytic activation of caspase 3. The MET‐driven cardioprotection involved, at least in vitro, the phosphorylation of STAT3. Conclusion and Implications The MET agonist mAb provides a new tool for cardioprotection against anthracycline cardiotoxicity.
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Affiliation(s)
- Simona Gallo
- Candiolo Cancer Institute, FPO-IRCCS, Candiolo (TO), Italy
| | - Martina Spilinga
- Candiolo Cancer Institute, FPO-IRCCS, Candiolo (TO), Italy.,Department of Oncology, University of Turin, Turin, Italy
| | | | - Giuseppe Ferrauto
- Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy
| | - Enza Di Gregorio
- Department of Molecular Biotechnology and Health Sciences, University of Turin, Turin, Italy
| | - Elena Casanova
- Candiolo Cancer Institute, FPO-IRCCS, Candiolo (TO), Italy
| | | | | | - Carla Boccaccio
- Candiolo Cancer Institute, FPO-IRCCS, Candiolo (TO), Italy.,Department of Oncology, University of Turin, Turin, Italy
| | - Anna Sapino
- Candiolo Cancer Institute, FPO-IRCCS, Candiolo (TO), Italy.,Department of Medical Sciences, University of Turin, Turin, Italy
| | | | - Tiziana Crepaldi
- Candiolo Cancer Institute, FPO-IRCCS, Candiolo (TO), Italy.,Department of Oncology, University of Turin, Turin, Italy
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9
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Wigén J, Elowsson-Rendin L, Karlsson L, Tykesson E, Westergren-Thorsson G. Glycosaminoglycans: A Link Between Development and Regeneration in the Lung. Stem Cells Dev 2019; 28:823-832. [PMID: 31062651 DOI: 10.1089/scd.2019.0009] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
What can we learn from embryogenesis to increase our understanding of how regeneration of damaged adult lung tissue could be induced in serious lung diseases such as chronic obstructive pulmonary disease (COPD), idiopathic pulmonary fibrosis (IPF), and asthma? The local tissue niche determines events in both embryogenesis and repair of the adult lung. Important constituents of the niche are extracellular matrix (ECM) molecules, including proteoglycans and glycosaminoglycans (GAGs). GAGs, strategically located in the pericellular and extracellular space, bind developmentally active growth factors (GFs) and morphogens such as fibroblast growth factors (FGFs), transforming growth factor-β (TGF-β), and bone morphogenetic proteins (BMPs) aside from cytokines. These interactions affect activities in many cells, including stem cells, important in development and tissue regeneration. Moreover, it is becoming clear that the "inherent code," such as sulfation of disaccharides of GAGs, is a strong determinant of cellular outcome. Sulfation patterns, deacetylations, and epimerizations of GAG chains function as tuning forks in gradient formation of morphogens, growth factors, and cytokines. Learning to tune these fine instruments, that is, interactions between GFs, chemokines, and cytokines with the specific disaccharide code of GAGs in the adult lung, could become the key to unlock inherent regenerative forces to override pathological remodeling. This review aims to provide an overview of the role GAGs play during development and similar events in regenerative efforts in the adult lung.
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Affiliation(s)
- Jenny Wigén
- Experimental Medical Sciences, Lung Biology, Lund, Sweden
| | | | - Lisa Karlsson
- Experimental Medical Sciences, Lung Biology, Lund, Sweden
| | - Emil Tykesson
- Experimental Medical Sciences, Lung Biology, Lund, Sweden
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10
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De Pasquale V, Sarogni P, Pistorio V, Cerulo G, Paladino S, Pavone LM. Targeting Heparan Sulfate Proteoglycans as a Novel Therapeutic Strategy for Mucopolysaccharidoses. MOLECULAR THERAPY-METHODS & CLINICAL DEVELOPMENT 2018; 10:8-16. [PMID: 29942826 PMCID: PMC6011039 DOI: 10.1016/j.omtm.2018.05.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 05/13/2018] [Indexed: 12/31/2022]
Abstract
Mucopolysaccharidoses (MPSs) are inherited metabolic diseases caused by the deficiency of lysosomal enzymes needed to catabolize glycosaminoglycans (GAGs). Four therapeutic options are currently considered: enzyme replacement therapy, substrate reduction therapy, gene therapy, and hematopoietic stem cell transplantation. However, while some of them exhibit limited clinical efficacy and require high costs, others are still in development. Therefore, alternative treatments for MPSs need to be explored. Here we describe an innovative therapeutic approach based on the use of a recombinant protein that is able to bind the excess of extracellular accumulated heparan sulfate (HS). We demonstrate that this protein is able to reduce lysosomal defects in primary fibroblasts from MPS I and MPS IIIB patients. We also show that, by masking the excess of extracellular accumulated HS in MPS fibroblasts, fibroblast growth factor (FGF) signal transduction can be positively modulated. We, therefore, suggest the use of a competitive binding molecule for HS in MPSs as an alternative strategy to prevent the detrimental extracellular substrate storage.
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Affiliation(s)
- Valeria De Pasquale
- Department of Molecular Medicine and Medical Biotechnology, School of Medicine, University of Naples Federico II, 80131 Naples, Italy
| | - Patrizia Sarogni
- Department of Molecular Medicine and Medical Biotechnology, School of Medicine, University of Naples Federico II, 80131 Naples, Italy
| | - Valeria Pistorio
- Department of Molecular Medicine and Medical Biotechnology, School of Medicine, University of Naples Federico II, 80131 Naples, Italy
| | - Giuliana Cerulo
- Department of Molecular Medicine and Medical Biotechnology, School of Medicine, University of Naples Federico II, 80131 Naples, Italy
| | - Simona Paladino
- Department of Molecular Medicine and Medical Biotechnology, School of Medicine, University of Naples Federico II, 80131 Naples, Italy
| | - Luigi Michele Pavone
- Department of Molecular Medicine and Medical Biotechnology, School of Medicine, University of Naples Federico II, 80131 Naples, Italy
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11
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Imamura R, Matsumoto K. Hepatocyte growth factor in physiology and infectious diseases. Cytokine 2017; 98:97-106. [PMID: 28094206 DOI: 10.1016/j.cyto.2016.12.025] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 12/26/2016] [Accepted: 12/26/2016] [Indexed: 01/14/2023]
Abstract
Hepatocyte growth factor (HGF) is a pleiotropic cytokine composed of an α-chain and a β-chain, and these chains contain four kringle domains and a serine protease-like structure, respectively. The receptor for HGF was identified as the c-met proto-oncogene product of transmembrane receptor tyrosine kinase. HGF-induced signaling through the receptor Met provokes dynamic biological responses that support morphogenesis, regeneration, and the survival of various cells and tissues, which includes hepatocytes, renal tubular cells, and neurons. Characterization of tissue-specific Met knockout mice has further indicated that the HGF-Met system modulates immune cell functions and also plays an inhibitory role in the progression of chronic inflammation and fibrosis. However, the biological actions that are driven by the HGF-Met pathway all play a role in the acquisition of the malignant characteristics in tumor cells, such as invasion, metastasis, and drug resistance in the tumor microenvironment. Even though oncogenic Met signaling remains the major research focus, the HGF-Met axis has also been implicated in infectious diseases. Many pathogens try to utilize host HGF-Met system to establish comfortable environment for infection. Their strategies are not only simply change the expression level of HGF or Met, but also actively hijack HGF-Met system and deregulating Met signaling using their pathogenic factors. Consequently, the monitoring of HGF and Met expression, along with real-time detection of Met activation, can be a beneficial biomarker of these infectious diseases. Preclinical studies designed to address the therapeutic significance of HGF have been performed on injury/disease models, including acute tissue injury, chronic fibrosis, and cardiovascular and neurodegenerative diseases. Likewise, manipulating the HGF-Met system with complete control will lead to a tailor made treatment for those infectious diseases.
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Affiliation(s)
- Ryu Imamura
- Division of Tumor Dynamics and Regulation, Cancer Research Institute, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Kunio Matsumoto
- Division of Tumor Dynamics and Regulation, Cancer Research Institute, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan.
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Fabrication and Characterization of Heparin/Collagen Sponge for in Vitro Differentiation of Wharton’s Jelly-Derived Mesenchymal Stem Cells into Hepatocytes. HEPATITIS MONTHLY 2017. [DOI: 10.5812/hepatmon.40599] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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13
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Kechagia M, Papassotiriou I, Gourgoulianis KI. Endocan and the respiratory system: a review. Int J Chron Obstruct Pulmon Dis 2016; 11:3179-3187. [PMID: 28003744 PMCID: PMC5161333 DOI: 10.2147/copd.s118692] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Endocan, formerly called endothelial cell-specific molecule 1, is an endothelial cell-associated proteoglycan that is preferentially expressed by renal and pulmonary endothelium. It is upregulated by proangiogenic molecules as well as by pro-inflammatory cytokines, and since it reflects endothelial activation and dysfunction, it is regarded as a novel tissue and blood-based relevant biomarker. As such, it is increasingly being researched and evaluated in a wide spectrum of healthy and disease pathophysiological processes. Here, we review the present scientific knowledge on endocan, with emphasis on the evidence that underlines its possible clinical value as a prognostic marker in several malignant, inflammatory and obstructive disorders of the respiratory system.
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Affiliation(s)
- Maria Kechagia
- Respiratory Medicine Department, University of Thessaly Medical School, Larissa
- Department of Clinical Biochemistry, Aghia Sophia Children’s Hospital, Athens, Greece
| | - Ioannis Papassotiriou
- Department of Clinical Biochemistry, Aghia Sophia Children’s Hospital, Athens, Greece
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14
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Mende M, Bednarek C, Wawryszyn M, Sauter P, Biskup MB, Schepers U, Bräse S. Chemical Synthesis of Glycosaminoglycans. Chem Rev 2016; 116:8193-255. [DOI: 10.1021/acs.chemrev.6b00010] [Citation(s) in RCA: 144] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Marco Mende
- Institute
of Organic Chemistry, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, D-76131 Karlsruhe, Germany
| | - Christin Bednarek
- Institute
of Organic Chemistry, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, D-76131 Karlsruhe, Germany
| | - Mirella Wawryszyn
- Institute
of Organic Chemistry, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, D-76131 Karlsruhe, Germany
| | - Paul Sauter
- Institute
of Organic Chemistry, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, D-76131 Karlsruhe, Germany
| | - Moritz B. Biskup
- Division
2—Informatics, Economics and Society, Karlsruhe Institute of Technology (KIT), Kaiserstraße 12, D-76131 Karlsruhe, Germany
| | - Ute Schepers
- Institute
of Toxicology and Genetics, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
| | - Stefan Bräse
- Institute
of Organic Chemistry, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, D-76131 Karlsruhe, Germany
- Institute
of Toxicology and Genetics, Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
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15
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Gomes AM, Sinkeviciute D, Multhaupt HAB, Yoneda A, Couchman JR. Syndecan Heparan Sulfate Proteoglycans: Regulation, Signaling and Impact on Tumor Biology. TRENDS GLYCOSCI GLYC 2016. [DOI: 10.4052/tigg.1422.1e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Angélica Maciel Gomes
- Department of Biomedical Sciences and Biotech Research & Innovation Center, University of Copenhagen
| | - Dovile Sinkeviciute
- Department of Biomedical Sciences and Biotech Research & Innovation Center, University of Copenhagen
| | - Hinke A. B. Multhaupt
- Department of Biomedical Sciences and Biotech Research & Innovation Center, University of Copenhagen
| | - Atsuko Yoneda
- Laboratory of Genome and Biosignals, Tokyo University of Pharmacy and Life Sciences
| | - John R. Couchman
- Department of Biomedical Sciences and Biotech Research & Innovation Center, University of Copenhagen
- Dept. Biomedical Sciences, University of Copenhagen, Biocenter
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Gomes AM, Sinkeviciute D, Multhaupt HAB, Yoneda A, Couchman JR. Syndecan Heparan Sulfate Proteoglycans: Regulation, Signaling and Impact on Tumor Biology. TRENDS GLYCOSCI GLYC 2016. [DOI: 10.4052/tigg.1422.1j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Angélica Maciel Gomes
- Department of Biomedical Sciences and Biotech Research & Innovation Center, University of Copenhagen
| | - Dovile Sinkeviciute
- Department of Biomedical Sciences and Biotech Research & Innovation Center, University of Copenhagen
| | - Hinke A. B. Multhaupt
- Department of Biomedical Sciences and Biotech Research & Innovation Center, University of Copenhagen
| | - Atsuko Yoneda
- Laboratory of Genome and Biosignals, Tokyo University of Pharmacy and Life Sciences
| | - John R. Couchman
- Department of Biomedical Sciences and Biotech Research & Innovation Center, University of Copenhagen
- Dept. Biomedical Sciences, University of Copenhagen, Biocenter
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Foster E, You J, Siltanen C, Patel D, Haque A, Anderson L, Revzin A. Heparin hydrogel sandwich cultures of primary hepatocytes. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2014.12.033] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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18
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Arlov Ø, Aachmann FL, Feyzi E, Sundan A, Skjåk-Bræk G. The Impact of Chain Length and Flexibility in the Interaction between Sulfated Alginates and HGF and FGF-2. Biomacromolecules 2015; 16:3417-24. [PMID: 26406104 DOI: 10.1021/acs.biomac.5b01125] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Alginate is a promising polysaccharide for use in biomaterials as it is biologically inert. One way to functionalize alginate is by chemical sulfation to emulate sulfated glycosaminoglycans, which interact with a variety of proteins critical for tissue development and homeostasis. In the present work we studied the impact of chain length and flexibility of sulfated alginates for interactions with FGF-2 and HGF. Both growth factors interact with defined sequences of heparan sulfate (HS) at the cell surface or in the extracellular matrix. Whereas FGF-2 interacts with a pentasaccharide sequence containing a critical 2-O-sulfated iduronic acid, HGF has been suggested to require a highly sulfated HS/heparin octasaccharide. Here, oligosaccharides of alternating mannuronic and guluronic acid (MG) were sulfated and assessed by their relative efficacy at releasing growth factor bound to the surface of myeloma cells. 8-mers of sulfated MG (SMG) alginate showed significant HGF release compared to shorter fragments, while the maximum efficacy was achieved at a chain length average of 14 monosaccharides. FGF-2 release required a higher concentration of the SMG fragments, and the 14-mer was less potent compared to an equally sulfated high-molecular weight SMG. Sulfated mannuronan (SM) was subjected to periodate oxidation to increase chain flexibility. To assess the change in flexibility, the persistence length was estimated by SEC-MALLS analysis and the Bohdanecky approach to the worm-like chain model. A high degree of oxidation of SM resulted in approximately twice as potent HGF release compared to the nonoxidized SM alginate. The release of FGF-2 also increased with the degree of oxidation, but to a lower degree compared to that of HGF. It was found that the SM alginates were more efficient at releasing FGF-2 than the SMG alginates, indicating a greater dependence on monosaccharide identity and charge orientation over chain flexibility and charge density.
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Affiliation(s)
- Øystein Arlov
- Department of Biotechnology, Norwegian University of Science and Technology , Sem Sælands vei 6/8, 7034 Trondheim, Norway
| | - Finn L Aachmann
- Department of Biotechnology, Norwegian University of Science and Technology , Sem Sælands vei 6/8, 7034 Trondheim, Norway
| | - Emadoldin Feyzi
- K.G. Jebsen Center for Myeloma Research and Centre of Molecular Inflammation Research (CEMIR), Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology , Prinsesse Kristinas gate 1, 7030 Trondheim, Norway.,Department of Hematology, St. Olav University Hospital , Erling Skjalgsons Gate 1, 7030 Trondheim, Norway
| | - Anders Sundan
- K.G. Jebsen Center for Myeloma Research and Centre of Molecular Inflammation Research (CEMIR), Department of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology , Prinsesse Kristinas gate 1, 7030 Trondheim, Norway
| | - Gudmund Skjåk-Bræk
- Department of Biotechnology, Norwegian University of Science and Technology , Sem Sælands vei 6/8, 7034 Trondheim, Norway
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Jin CL, Oh JH, Han M, Shin MK, Yao C, Park CH, Jin ZH, Chung JH. UV irradiation-induced production of monoglycosylated biglycan through downregulation of xylosyltransferase 1 in cultured human dermal fibroblasts. J Dermatol Sci 2015; 79:20-9. [PMID: 25936869 DOI: 10.1016/j.jdermsci.2015.03.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Revised: 02/27/2015] [Accepted: 03/29/2015] [Indexed: 01/11/2023]
Abstract
BACKGROUND Biglycan (BGN) is a proteoglycan composed of a 42-kDa core protein and two glycosaminoglycan (GAG) chains, and known to be involved in structural, space-filling functions and many physiological regulations in the skin. OBJECTIVE To investigate ultraviolet (UV) irradiation-induced changes of BGN protein and its GAG chain synthesis in cultured human dermal fibroblasts. METHODS UV irradiation-induced or xylosyltransferase (XYLT) 1 siRNA-mediated smaller-sized protein bands detected by Western blot using BGN antibodies were identified as monoglycosylated forms of BGN, using BGN siRNA-mediated knockdown and chondroitinase ABC (ChABC). Differential activity of XYLT1 and 2 on BGN core protein was investigated by size shift of S42A- and S47A-BGN mutants to core protein size caused by XYLT1 siRNA transfection or UV irradiation. RESULTS After UV irradiation, intact form of BGN protein (I-BGN) and core protein form were reduced in cultured fibroblasts, but other smaller-sized bands were observed to be increased. These smaller-sized ones were reduced by transfection of BGN siRNA, and shifted to the core protein size by treatment with ChABC, suggesting that they are defectively-glycosylated forms of BGN (D-BGN) protein. UV irradiation also decreased mRNA expression levels of XYLT1 and 2, which are responsible for initiation of GAG chain synthesis. UV-mediated reduction of XYLT1 expression was much stronger than that of XYLT2. Furthermore, siRNA-mediated down-regulation of XYLT1 resulted in the increase of D-BGN and the decrease of I-BGN, while down-regulation of XYLT2 resulted in no change of D-BGN and I-BGN, suggesting that the XYLT1 may react with both GAG-attaching serine sites of BGN; however, XYLT2 may prefer to react one of them. Another dermatan sulfate (DS) proteoglycan, decorin, showed no or a little change of its molecular weight by UV irradiation or XYLT1 siRNA transfection, suggesting that DS synthesis may not be a critical factor in formation of D-BGN. Co-transfection with XYLT1, 2 siRNAs and wild-type or mutant forms of BGN overexpression vectors revealed that S42A-BGN showed size reduction to core protein size by XYLT1 downregulation, but S47A-BGN did not, suggesting that XYLT2 can react only with S42 on BGN core protein. With UV irradiation, both S42A-BGN and S47A-BGN showed size reduction, which is probably because UV-caused downregulation of both XYLTs and overexpression condition resulted in incomplete glycosylation and secretion. CONCLUSIONS UV irradiation-induced increase of BGN monoglycosylated forms in cultured human dermal fibroblasts is resulted from dominance of XYLT2 activity, which acts only at S42 on BGN core protein, caused by UV-mediated stronger reduction of XYLT1.
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Affiliation(s)
- Cheng Long Jin
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Republic of Korea; Department of Dermatology, Yanbian University Hospital, Yanji, Jilin, China; Laboratory of Cutaneous Aging Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea; Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Seoul, Republic of Korea.
| | - Jang-Hee Oh
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Republic of Korea; Laboratory of Cutaneous Aging Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea; Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Seoul, Republic of Korea
| | - Mira Han
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Republic of Korea; Laboratory of Cutaneous Aging Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea; Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Seoul, Republic of Korea
| | - Min Kyeong Shin
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Republic of Korea; Laboratory of Cutaneous Aging Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea; Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Seoul, Republic of Korea
| | - Cheng Yao
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Republic of Korea; Laboratory of Cutaneous Aging Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea; Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Seoul, Republic of Korea
| | - Chi-Hyun Park
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Republic of Korea; Laboratory of Cutaneous Aging Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea; Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Seoul, Republic of Korea
| | - Zhe Hu Jin
- Department of Dermatology, Yanbian University Hospital, Yanji, Jilin, China.
| | - Jin Ho Chung
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Republic of Korea; Laboratory of Cutaneous Aging Research, Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea; Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Seoul, Republic of Korea.
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20
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Baldanzi G, Graziani A. Physiological Signaling and Structure of the HGF Receptor MET. Biomedicines 2014; 3:1-31. [PMID: 28536396 PMCID: PMC5344233 DOI: 10.3390/biomedicines3010001] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Accepted: 12/09/2014] [Indexed: 12/13/2022] Open
Abstract
The "hepatocyte growth factor" also known as "scatter factor", is a multifunctional cytokine with the peculiar ability of simultaneously triggering epithelial cell proliferation, movement and survival. The combination of those proprieties results in the induction of an epithelial to mesenchymal transition in target cells, fundamental for embryogenesis but also exploited by tumor cells during metastatization. The hepatocyte growth factor receptor, MET, is a proto-oncogene and a prototypical transmembrane tyrosine kinase receptor. Inhere we discuss the MET molecular structure and the hepatocyte growth factor driven physiological signaling which coordinates epithelial proliferation, motility and morphogenesis.
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Affiliation(s)
- Gianluca Baldanzi
- Department Translational Medicine, University Piemonte Orientale, via Solaroli 17, 28100 Novara, Italy.
| | - Andrea Graziani
- Department Translational Medicine, University Piemonte Orientale, via Solaroli 17, 28100 Novara, Italy.
- Università Vita-Salute San Raffaele, via Olgettina 58, 20132 Milano, Italy.
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21
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Wright JW, Kawas LH, Harding JW. The development of small molecule angiotensin IV analogs to treat Alzheimer's and Parkinson's diseases. Prog Neurobiol 2014; 125:26-46. [PMID: 25455861 DOI: 10.1016/j.pneurobio.2014.11.004] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Revised: 11/17/2014] [Accepted: 11/19/2014] [Indexed: 02/07/2023]
Abstract
Alzheimer's (AD) and Parkinson's (PD) diseases are neurodegenerative diseases presently without effective drug treatments. AD is characterized by general cognitive impairment, difficulties with memory consolidation and retrieval, and with advanced stages episodes of agitation and anger. AD is increasing in frequency as life expectancy increases. Present FDA approved medications do little to slow disease progression and none address the underlying progressive loss of synaptic connections and neurons. New drug design approaches are needed beyond cholinesterase inhibitors and N-methyl-d-aspartate receptor antagonists. Patients with PD experience the symptomatic triad of bradykinesis, tremor-at-rest, and rigidity with the possibility of additional non-motor symptoms including sleep disturbances, depression, dementia, and autonomic nervous system failure. This review summarizes available information regarding the role of the brain renin-angiotensin system (RAS) in learning and memory and motor functions, with particular emphasis on research results suggesting a link between angiotensin IV (AngIV) interacting with the AT4 receptor subtype. Currently there is controversy over the identity of this AT4 receptor protein. Albiston and colleagues have offered convincing evidence that it is the insulin-regulated aminopeptidase (IRAP). Recently members of our laboratory have presented evidence that the brain AngIV/AT4 receptor system coincides with the brain hepatocyte growth factor/c-Met receptor system. In an effort to resolve this issue we have synthesized a number of small molecule AngIV-based compounds that are metabolically stable, penetrate the blood-brain barrier, and facilitate compromised memory and motor systems. These research efforts are described along with details concerning a recently synthesized molecule, Dihexa that shows promise in overcoming memory and motor dysfunctions by augmenting synaptic connectivity via the formation of new functional synapses.
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Affiliation(s)
- John W Wright
- Departments of Psychology, Integrative Physiology and Neuroscience and Program in Biotechnology, Washington State University, Pullman, WA 99164-4820, USA; M3 Biotechnology, Inc., 4000 Mason Rd Suite 300, Box 352141, Seattle, WA 98195-2141, USA.
| | - Leen H Kawas
- Departments of Psychology, Integrative Physiology and Neuroscience and Program in Biotechnology, Washington State University, Pullman, WA 99164-4820, USA; M3 Biotechnology, Inc., 4000 Mason Rd Suite 300, Box 352141, Seattle, WA 98195-2141, USA
| | - Joseph W Harding
- Departments of Psychology, Integrative Physiology and Neuroscience and Program in Biotechnology, Washington State University, Pullman, WA 99164-4820, USA; M3 Biotechnology, Inc., 4000 Mason Rd Suite 300, Box 352141, Seattle, WA 98195-2141, USA
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22
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Adachi E, Hirose-Sugiura T, Kato Y, Ikebuchi F, Yamashita A, Abe T, Fukuta K, Adachi K, Matsumoto K. Pharmacokinetics and pharmacodynamics following intravenous administration of recombinant human hepatocyte growth factor in rats with renal injury. Pharmacology 2014; 94:190-7. [PMID: 25378205 DOI: 10.1159/000363412] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Accepted: 05/06/2014] [Indexed: 11/19/2022]
Abstract
BACKGROUND/AIM Hepatocyte growth factor (HGF) plays a role in the regeneration and protection of the kidney, but little information is available concerning the pharmacokinetics of therapeutic treatment with HGF. In this study, HGF was administered after the onset of renal injury, and pharmacokinetic analysis was performed simultaneously with an efficacious dose. METHODS For the study of pharmacodynamics, recombinant human HGF was intravenously administered to rats with glycerol-induced acute kidney injury (AKI). In the pharmacokinetic study, rats subjected to glycerol injection or renal ischemia-reperfusion were used as models of AKI, and rats subjected to 5/6 nephrectomy were used as models of chronic kidney disease (CKD). RESULTS After intravenous administration of HGF at doses of 0.5-2.0 mg/kg, the elevation of blood urea nitrogen was suppressed, indicating that HGF had a pharmacodynamic effect. However, no significant difference was seen in the pharmacokinetic parameters such as clearance, distribution volume and half-life between the normal, AKI and CKD groups. CONCLUSION The intravenous administration of HGF after the onset of renal dysfunction exerted a pharmacological effect on AKI, and renal injury did not affect the clearance of plasma HGF. This unaffected profile may serve as a base for the safety of HGF during therapeutic administration.
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Affiliation(s)
- Eri Adachi
- Division of Tumor Dynamics and Regulation, Cancer Research Institute, Kanazawa University, Kanazawa, Japan
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23
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Uniewicz KA, Ori A, Ahmed YA, Yates EA, Fernig DG. Characterisation of the interaction of neuropilin-1 with heparin and a heparan sulfate mimetic library of heparin-derived sugars. PeerJ 2014; 2:e461. [PMID: 25024924 PMCID: PMC4089425 DOI: 10.7717/peerj.461] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Accepted: 06/09/2014] [Indexed: 12/22/2022] Open
Abstract
Background. Neuropilin-1 (NRP-1) is a multidomain membrane protein with soluble isoforms interacting with a complex network of other membrane receptors, their respective ligands and heparan sulfate (HS). It is involved in the development of vasculature, neural patterning, immunological responses and pathological angiogenesis. Methods. We have characterised the binding of a Fc fusion of rat NRP-1 (Fc rNRP-1) and of a soluble isoform, corresponding to the first four extracellular domains of human NRP-1, shNRP-1, using optical biosensor-based binding assays with a library of heparin derivatives. Selective labelling of lysines protected upon heparin binding allowed their identification by mass spectrometry. Results. Fc rNRP-1 bound to heparin with high affinity (2.5 nM) and fast ka (9.8 × 10(6) M(-1)s(-1)). Unusually, NRP-1 bound both highly sulfated and completely desulfated stretches of heparin and exhibited a complex pattern of preferences for chemically modified heparins possessing one or two sulfate groups, e.g., it bound heparin with just a 6-O sulfate group better than heparin with any two of N-sulfate, 6-O sulfate and 2-O sulfate. Mass-spectrometry based mapping identified that, in addition to the expected the b1 domain, the a1, and c domains and the L2 linker were also involved in the interaction. In contrast, shNRP-1 bound heparin far more weakly. This could only be shown by affinity chromatography and by differential scanning fluorimetry. Discussion. The results suggest that the interaction of NRP-1 with HS is more complex than anticipated and involving a far greater extent of the protein than just the b1-b2 domains. NRP-1's preference for binding long saccharide structures suggests it has the potential to bind large segments of HS chains and so organise their local structure. In contrast, the four domain soluble isoform, shNRP-1 binds heparin weakly and so would be expected to diffuse away rapidly from the source cell.
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Affiliation(s)
- Katarzyna A Uniewicz
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool , Liverpool , United Kingdom
| | - Alessandro Ori
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool , Liverpool , United Kingdom
| | - Yassir A Ahmed
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool , Liverpool , United Kingdom
| | - Edwin A Yates
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool , Liverpool , United Kingdom
| | - David G Fernig
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool , Liverpool , United Kingdom
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24
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Koźma EM, Wisowski G, Latocha M, Kusz D, Olczyk K. Complex influence of dermatan sulphate on breast cancer cells. Exp Biol Med (Maywood) 2014; 239:1575-88. [PMID: 24912503 DOI: 10.1177/1535370214538590] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Tumor transformation and progression both lead to extracellular matrix remodeling, which is also reflected in an alteration in the proportion of dermatan sulphate (DS) and chondroitin sulphate (CS) and an accumulation of the latter. In addition, a significant increase in the 6-O-sulphated disaccharide contribution to the structure of both glycosaminoglycans has been observed. It is commonly accepted that CS is more permissive for tumor growth than DS. However, the detailed role of DS in tumor progression is poorly known. We tested the effects of structurally different DSs on the behavior of cultured breast cancer cells. At a high dose (10 µg/mL), all of the DSs significantly reduced cancer cell growth, although some differences in the efficiency of action were apparent. In contrast, when used at a concentration of 1 µg/mL, the examined DSs evoked different responses ranging from the stimulation to the inhibition of cancer cell proliferation. The highest stimulatory activity was associated with fibrosis-affected fascia decorin DS, which is characterized by a particularly high content of 6-O-sulphated disaccharides. Further reduction in DS concentration to 0.5 µg/mL preserved majority of biological effects which were apparent at a dose of 1 µg/mL. The enzymatic fragmentation of the DSs, particularly by chondroitinase AC I, abolished the impact exerted by 1 µg/mL of the intact DS chains and sometimes resulted in the opposite effect. In contrast to DSs, highly sulphated C-6-S exhibited no effect on the cancer cells. Our data revealed the complexity of the effects of DSs on breast cancer cells, which include both co-receptor activity and the prevention of vascular endothelial growth factor action. In addition, the biological effect of DSs is strongly dependent not only on the glycosaminoglycan structure but also on its content in the cancer environment.
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Affiliation(s)
- Ewa M Koźma
- Department of Clinical Chemistry and Laboratory Diagnostics, Medical University of Silesia, Sosnowiec 41-200, ul. Jedności 8, Poland
| | - Grzegorz Wisowski
- Department of Clinical Chemistry and Laboratory Diagnostics, Medical University of Silesia, Sosnowiec 41-200, ul. Jedności 8, Poland
| | - Małgorzata Latocha
- Department of Cell Biology, Medical University of Silesia, Sosnowiec 41-200, ul. Jedności 8, Poland
| | - Damian Kusz
- Department of Orthopaedics and Traumatology, Medical University of Silesia, Katowice 40-635, ul. Ziołowa 45/47, Poland
| | - Krystyna Olczyk
- Department of Clinical Chemistry and Laboratory Diagnostics, Medical University of Silesia, Sosnowiec 41-200, ul. Jedności 8, Poland
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Effective inhibition of c-MET-mediated signaling, growth and migration of ovarian cancer cells is influenced by the ovarian tissue microenvironment. Oncogene 2013; 34:144-53. [PMID: 24362531 PMCID: PMC4067476 DOI: 10.1038/onc.2013.539] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2013] [Revised: 09/24/2013] [Accepted: 10/28/2013] [Indexed: 12/13/2022]
Abstract
The signaling mediated by c-MET and its ligand, hepatocyte growth factor (HGF), has been implicated in malignant progression of cancer involving stimulation of proliferation, invasion, and metastasis. We studied the c-MET/HGF axis as a mediator of tumor-stromal interaction in ovarian cancer and the value of targeting c-MET for the treatment of ovarian cancer. To assess c-MET signaling, we established in vitro models of the microenvironment using primary and immortalized human fibroblasts from normal ovary and tumor samples and epithelial ovarian cancer cell lines. We found that fibroblast from normal ovaries secreted high levels of HGF (1,500 to 3,800 pg/mL) as compared to tumor-derived fibroblasts (undetectable level) and could elicit cellular biological responses on c-MET expressing ovarian cancer cells including increase of cell proliferation and migration (2- to 140-fold increase). HGF secreted by fibroblasts was also found sequestered within extracellular matrices (ECMs) and when degraded this ECM-derived HGF stimulated cancer cell migration (1.5- to 24-fold). In cells containing constitutive c-MET phosphorylation, recombinant HGF and fibroblast-derived HGF negligibly affect c-MET phosphorylation on Tyr1234 and Tyr1003. However, both sources of HGF increased the phosphorylation of c-MET on Tyr1349, the multi-substrate docking site, by more than 6-fold and led to activation of downstream signaling transducers. DCC-2701 (Deciphera Pharmaceuticals, LLC), a novel c-MET/TIE-2/VEGFR inhibitor was able to effectively reduce tumor burden in vivo and block c-MET pTyr1349-mediated signaling, cell growth, and migration as compared to a HGF antagonist in vitro. Importantly, DCC-2701’s anti-proliferative activity was dependent on c-MET activation induced by stromal human fibroblasts and to a lesser extent exogenous HGF. Our data suggest for the first time that DCC-2701 may be superior to HGF antagonists that are in clinical trials and that pTyr1349 levels might be a good indicator of c-MET activation and likely response to targeted therapy as a result of signals from the microenvironment.
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Kisiel M, Klar AS, Ventura M, Buijs J, Mafina MK, Cool SM, Hilborn J. Complexation and sequestration of BMP-2 from an ECM mimetic hyaluronan gel for improved bone formation. PLoS One 2013; 8:e78551. [PMID: 24167632 PMCID: PMC3805527 DOI: 10.1371/journal.pone.0078551] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2013] [Accepted: 09/20/2013] [Indexed: 11/23/2022] Open
Abstract
Bone morphogenetic protein-2 (BMP-2) is considered a promising adjuvant for the treatment of skeletal non-union and spinal fusion. However, BMP-2 delivery in a conventional collagen scaffold necessitates a high dose to achieve an efficacious outcome. To lower its effective dose, we precomplexed BMP-2 with the glycosaminoglycans (GAGs) dermatan sulfate (DS) or heparin (HP), prior to loading it into a hyaluronic acid (HA) hydrogel. In vitro release studies showed that BMP-2 precomplexed with DS or HP had a prolonged delivery compared to without GAG. BMP-2-DS complexes achieved a slightly faster release in the first 24 h than HP; however, both delivered BMP-2 for an equal duration. Analysis of the kinetic interaction between BMP-2 and DS or HP showed that HP had approximately 10 times higher affinity for BMP-2 than DS, yet it equally stabilized the protein, as determined by alkaline phosphatase activity. Ectopic bone formation assays at subcutaneous sites in rats demonstrated that HA hydrogel-delivered BMP-2 precomplexed with GAG induced twice the volume of bone compared with BMP-2 delivered uncomplexed to GAG.
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Affiliation(s)
- Marta Kisiel
- Division of Polymers Chemistry, Department of Chemistry-ångström, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Agnieszka S. Klar
- Tissue Biology Research Unit, Department of Surgery, University Children’s Hospital, Zurich, Switzerland
| | - Manuela Ventura
- Biomaterials, Radboud University Nijmegen Medical Centre, Nijmegen, Netherlands
| | - Jos Buijs
- Science for Life Laboratory, GE Healthcare, Stockholm, Sweden
| | - Marc-Krystelle Mafina
- School of Engineering and Materials Science, Queen Mary University of London, London, UK
| | - Simon M. Cool
- Glycotherapeutics Group, Institute of Medical Biology, A*STAR, Singapore, Singapore, Singapore
| | - Jöns Hilborn
- Division of Polymers Chemistry, Department of Chemistry-ångström, Science for Life Laboratory, Uppsala University, Uppsala, Sweden
- * E-mail:
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Endocan in cancers: a lesson from a circulating dermatan sulfate proteoglycan. Int J Cell Biol 2013; 2013:705027. [PMID: 23606845 PMCID: PMC3625564 DOI: 10.1155/2013/705027] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Accepted: 02/27/2013] [Indexed: 12/14/2022] Open
Abstract
As most proteoglycans exert their biological activities in the pericellular region, circulating Endocan has appeared since its discovery as an atypical dermatan sulfate proteoglycan, with distinctive structural and functional properties. Endocan is naturally expressed by endothelial cells, highly regulated in presence of proinflammatory and proangiogenic molecules, binds to matrix proteins, growth factors, integrin, and cells, and may be then considered as an accurate marker of endothelial activation. Consequently, Endocan expression has been associated with a growing number of pathological conditions where endothelium gets challenged and notably in highly vascularized cancers. In this context, Endocan has indeed been rapidly emerging as a promising tissue- and blood-based marker of the vascular growth and neoangiogenesis during cancer progression. Furthermore, very recent studies have reported an expression of Endocan by the tumor cells themselves. This highlights Endocan as a multifaceted molecule with a great interest for researchers and clinicians to better understand tumor development, from the bench to the clinics. With promising perspectives of clinical applications, Endocan thus appears as an exciting model for on going and future developments of proteoglycan-based approaches in cancer diagnostics and/or therapy.
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Mizumoto S, Fongmoon D, Sugahara K. Interaction of chondroitin sulfate and dermatan sulfate from various biological sources with heparin-binding growth factors and cytokines. Glycoconj J 2012; 30:619-32. [DOI: 10.1007/s10719-012-9463-5] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2012] [Revised: 12/03/2012] [Accepted: 12/04/2012] [Indexed: 01/23/2023]
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Nakamura S, Kubo T, Ijima H. Heparin-conjugated gelatin as a growth factor immobilization scaffold. J Biosci Bioeng 2012; 115:562-7. [PMID: 23273911 DOI: 10.1016/j.jbiosc.2012.11.011] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2012] [Revised: 10/31/2012] [Accepted: 11/14/2012] [Indexed: 12/20/2022]
Abstract
Tissue engineering requires growth factors, cells and a scaffold to permit effective tissue regeneration. This study aimed to develop a scaffold with a focus on immobilizing growth factors within gelatin. We focused on the extracellular matrix and developed a heparin-conjugated gelatin (Hep-gela). Conjugation was confirmed using the alcian blue assay and X-ray diffraction patterns. The mechanical strength and stability of the Hep-gela gel in protease solution were improved compared with collagen gel. Hep-gela was able to immobilize vascular endothelial growth factor (VEGF) even in the presence of albumin, with an efficiency of 54.2%. Immobilized VEGF promoted proliferation of human umbilical vein endothelial cells. Hep-gela-immobilized VEGF maintained its native biological activity. In summary, Hep-gela has the potential to become an effective material in the field of regenerative medicine.
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Affiliation(s)
- Shintaro Nakamura
- Department of Chemical Engineering, Faculty of Engineering, Graduate School, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
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Sugiura T, Takahashi S, Sano K, Abe T, Fukuta K, Adachi K, Nakamura T, Matsumoto K, Nakamichi N, Kato Y. Pharmacokinetic modeling of hepatocyte growth factor in experimental animals and humans. J Pharm Sci 2012; 102:237-49. [PMID: 23047829 DOI: 10.1002/jps.23337] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2012] [Revised: 09/06/2012] [Accepted: 09/19/2012] [Indexed: 11/05/2022]
Abstract
Hepatocyte growth factor (HGF) is under development for treatment of renal failure. This study was designed to clarify changes in HGF pharmacokinetics in renal failure and to establish a pharmacokinetic model applicable to single and repeated doses. The plasma concentration profile in mice with glycerol-induced acute renal failure was similar to that in normal mice, indicating a minimal contribution of kidney to systemic clearance of HGF. Nevertheless, accumulation of fluorescein-4-isocyanate-labeled HGF in renal tubules in both cases suggests the occurrence of efficient endocytosis of HGF in kidney. A pharmacokinetic model including plasma and liver compartments was constructed, incorporating both high- and low-affinity receptors for association and subsequent endocytosis of HGF because HGF is eliminated via specific receptor c-Met and heparin-like substance. The model well explained the plasma concentration profiles at all doses examined after bolus injection in animals and humans, and those during infusion in rodents. It includes externalization of receptors, which is negatively regulated by HGF, and can explain the gradual increase in trough concentration during repeated dosing in monkeys. Overall pharmacokinetic profiles of HGF are governed by at least two receptors and are well described by this pharmacokinetic model, which should assist in safe management of clinical trials.
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Affiliation(s)
- Tomoko Sugiura
- Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
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31
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Muto J, Naidu NN, Yamasaki K, Pineau N, Breton L, Gallo RL. Exogenous addition of a C-xylopyranoside derivative stimulates keratinocyte dermatan sulfate synthesis and promotes migration. PLoS One 2011; 6:e25480. [PMID: 21998662 PMCID: PMC3187761 DOI: 10.1371/journal.pone.0025480] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2011] [Accepted: 09/05/2011] [Indexed: 11/19/2022] Open
Abstract
As C-Xyloside has been suggested to be an initiator of glycosaminoglycan (GAG) synthesis, and GAGs such as Dermatan sulfate (DS) are potent enhancers of fibroblast growth factor (FGF)--10 action, we investigated if a C-Xylopyranoside derivative, (C-β-D-xylopyranoside-2-hydroxy-propane, C-Xyloside), could promote DS production by cultured normal human keratinocytes, how this occurs and if C-Xyloside could also stimulate FGF-dependent cell migration and proliferation. C-Xyloside-treated keratinocytes greatly increased secretion of total sulfated GAGs. Majority of the induced GAG was chondroitin sulfate/dermatan sulfate (CS/DS) of which the major secreted GAG was DS. Cells lacking xylosyltransferase enzymatic activity demonstrated that C-Xyloside was able to stimulate GAG synthesis without addition to core proteins. Consistent with the observed increase in DS, keratinocytes treated with C-Xyloside showed enhanced migration in response to FGF-10 and secreted into their culture media GAGs that promoted FGF-10-dependent cellular proliferation. These results indicate that C-Xyloside may enhance epithelial repair by serving as an initiator of DS synthesis.
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Affiliation(s)
- Jun Muto
- Division of Dermatology, University of California, San Diego and Veterans Affairs San Diego Health Care System, San Diego, California, United States of America
| | - Nandita Natasha Naidu
- Glycotechnology Core Resource, University of California, San Diego, California, United States of America
| | - Kenshi Yamasaki
- Division of Dermatology, University of California, San Diego and Veterans Affairs San Diego Health Care System, San Diego, California, United States of America
| | | | | | - Richard L. Gallo
- Division of Dermatology, University of California, San Diego and Veterans Affairs San Diego Health Care System, San Diego, California, United States of America
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32
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Zamfir AD, Flangea C, Sisu E, Seidler DG, Peter-Katalinić J. Combining size-exclusion chromatography and fully automated chip-based nanoelectrospray quadrupole time-of-flight tandem mass spectrometry for structural analysis of chondroitin/dermatan sulfate in human decorin. Electrophoresis 2011; 32:1639-46. [PMID: 21647927 DOI: 10.1002/elps.201100094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2011] [Revised: 03/21/2011] [Accepted: 03/22/2011] [Indexed: 11/07/2022]
Abstract
Chondroitin/dermatan sulfate (CS/DS) chain of decorin (DCN) from human skin fibroblasts (HSk) was released by reductive β-elimination reaction and digested with chondroitin AC I lyase. Enzymatic hydrolysis mixture of CS/DS chains was separated by size-exclusion chromatography (SEC). Collected octasaccharide fraction was subjected to fully automated chip-based nanoelectrospray (nanoESI) quadrupole time-of-flight (QTOF) MS and tandem MS (MS/MS). MS of human skin fibroblasts DCN CS/DS displayed a high complexity due to the large variety of glycoforms, which under chip-nanoESI MS readily ionized to form multiply charged ions. Except for the regularly tetrasulfated octasaccharide, the investigated fraction contained four additional octasaccharides of atypical sulfation status. Two new oversulfated glycoforms and two undersulfated species were identified. Remarkably, the series of decasaccharides discovered in the same SEC pool was found to encompass a trisulfated and a novel hexasulfated [4,5-Δ-GlcAGalNAc(IdoAGalNAc)⁴] species. MS/MS by collision-induced dissociation (CID) on the [M-4H]⁴ ion corresponding to the previously not reported [4,5-Δ-GlcAGalNAc(IdoAGalNAc)₃](5S) corroborated for a novel motif in which three N-acetylgalactosamine (GalNAc) moieties are monosulfated, 4,5-Δ-GlcA and the first IdoA from the non-reducing end bear one sulfate group each, while the second N-acetylgalactosamine from the reducing end is unsulfated.
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Affiliation(s)
- Alina D Zamfir
- Department of Chemical and Biological Sciences, Aurel Vlaicu University of Arad, Arad, Romania.
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33
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Kozma EM, Wisowski G, Kusz D, Olczyk K. The role of decorin and biglycan dermatan sulfate chain(s) in fibrosis-affected fascia. Glycobiology 2011; 21:1301-16. [DOI: 10.1093/glycob/cwr065] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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34
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Vongchan P, Wutti-In Y, Sajomsang W, Gonil P, Kothan S, Linhardt RJ. N,N,N-Trimethyl chitosan nanoparticles for the delivery of monoclonal antibodies against hepatocellular carcinoma cells. Carbohydr Polym 2011; 85:215-220. [PMID: 21552341 PMCID: PMC3088426 DOI: 10.1016/j.carbpol.2011.02.018] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
N,N,N-Trimethyl chitosan chloride is capable of forming nanocomplexes with protein through ionotropic gelation. A monoclonal antibody, raised against human liver heparan sulfate proteoglycan and specifically inhibiting hepatocellular carcinoma in vitro, was prepared in nanocomplexes of this modified chitosan. The smallest nanocomplexes (59 ± 17 nm, zeta-potential 16.5 ± 0.5 mV) were obtained at polysaccharide:antibody ratios of 5:0.3. Spherical particles with a smooth surface and compact structure having a mean diameter of ~11.2 ± 0.09 nm were investigated by Atomic Force Microscopy. Cellular uptake of fluorescently labeled nanocomplexes was studied in mouse monocyte models of cancer and normal cells. External and internal fluorescence was analyzed by flow cytometry. The results demonstrate that the nanocomplexes could enter cells and were retained for a longer period of time in cancer cells where they exhibited greater toxicity. These nanocomplexes appear safe and could potentially enhance the half-life of added antibodies.
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Affiliation(s)
- Preeyanat Vongchan
- Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Yupanan Wutti-In
- Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Warayuth Sajomsang
- National Nanotechnology Center, Nanodelivery System Laboratory, National Science and Technology Development Agency, Pathumthani, 12120 Thailand
| | - Pattarapond Gonil
- National Nanotechnology Center, Nanodelivery System Laboratory, National Science and Technology Development Agency, Pathumthani, 12120 Thailand
| | - Suchart Kothan
- Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand
| | - Robert J. Linhardt
- Center for Biotechnology and Interdisciplinary Studies and Rensselaer Nanotechnology Center, Rensselaer Polytechnic Institute, New York, USA
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Wijelath E, Namekata M, Murray J, Furuyashiki M, Zhang S, Coan D, Wakao M, Harris RB, Suda Y, Wang L, Sobel M. Multiple mechanisms for exogenous heparin modulation of vascular endothelial growth factor activity. J Cell Biochem 2011; 111:461-8. [PMID: 20524207 DOI: 10.1002/jcb.22727] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Heparin and heparin-like molecules are known to modulate the cellular responses to vascular endothelial growth factor-A (VEGF-A). In this study, we investigated the likely mechanisms for heparin's influence on the biological activity of VEGF-A. Previous studies have shown that exogenous heparin's effects on the biological activity of VEGF-A are many and varied, in part due to the endogenous cell-surface heparan sulfates. To circumvent this problem, we used mutant endothelial cells lacking cell-surface heparan sulfates. We showed that VEGF-induced cellular responses are dependent in part on the presence of the heparan sulfates, and that exogenous heparin significantly augments VEGF's cellular effects especially when endogenous heparan sulfates are absent. Exogenous heparin was also found to play a cross-bridging role between VEGF-A(165) and putative heparin-binding sites within its cognate receptor, VEGFR2 when they were examined in isolation. The cross-bridging appears to be more dependent on molecular weight than on a specific heparin structure. This was confirmed by surface plasmon resonance binding studies using sugar chips immobilized with defined oligosaccharide structures, which showed that VEGF-A(165) binds to a relatively broad range of sulfated glycosaminoglycan structures. Finally, studies of the far-UV circular dichroism spectra of VEGF-A(165) showed that heparin can also modulate the conformation and secondary structure of the protein.
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Affiliation(s)
- Errol Wijelath
- Department of Surgery, Division of Vascular Surgery, VA Puget Sound Health Care System and University of Washington School of Medicine, Seattle, Washington 98108, USA.
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36
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Pan J, Qian Y, Zhou X, Lu H, Ramacciotti E, Zhang L. Chemically oversulfated glycosaminoglycans are potent modulators of contact system activation and different cell signaling pathways. J Biol Chem 2010; 285:22966-75. [PMID: 20418371 DOI: 10.1074/jbc.m109.063735] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Contaminated heparin was associated with adverse reactions by activating the contact system. Chemically oversulfated/modified glycosaminoglycans (GAGs) consisting of heparan sulfate, dermatan sulfate, and chondroitin sulfate have been identified as heparin contaminants. Current studies demonstrated that each component of oversulfated GAGs was comparable with oversulfated chondroitin sulfate in activating the contact system. By testing a series of unrelated negatively charged compounds, we found that the contact system recognized negative charges rather than specific chemical structures. We further tested how oversulfated GAGs and contaminated heparins affect different cell signaling pathways. Our data showed that chemically oversulfated GAGs and contaminated heparin had higher activity than the parent compounds and authentic heparin, indicative of sulfation-dominant and GAG sequence-dependent activities in BaF cell-based models of fibroblast growth factor/fibroblast growth factor receptor, glial cell line-derived neurotrophic factor/c-Ret, and hepatocyte growth factor/c-Met signaling. In summary, these data indicate that contaminated heparins intended for blood anticoagulation not only activated the contact system but also modified different GAG-dependent cell signaling pathways.
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Affiliation(s)
- Jing Pan
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri 63110, USA.
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37
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Zhang L. Glycosaminoglycan (GAG) biosynthesis and GAG-binding proteins. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2010; 93:1-17. [PMID: 20807638 DOI: 10.1016/s1877-1173(10)93001-9] [Citation(s) in RCA: 128] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Two major types of glycosaminoglycan (GAG) polysaccharides, heparan sulfate and chondroitin sulfate, are polymerized and modified by enzymes that are encoded by more than 40 genes in animal cells. Because of the expression repertoire of the GAG assembly and modification enzymes, each heparan sulfate and chondroitin sulfate chain has a sulfation pattern, chain length, and fine structure that is potentially unique to each animal cell. GAGs interact with hundreds of proteins. Such interactions protect growth factors, chemokines, and cytokines against proteolysis. GAGs catalyze protease (such as thrombin) inhibition by serpins. GAGs regulate multiple signaling pathways including, but not limited to, fibroblast growth factor (FGF)/FGFR, hepatocyte growth factor (HGF)/c-Met, glial cell line-derived neurotrophic factor (GDNF)/c-Ret/GFRalpha1, vascular endothelial growth factor (VEGF)/VEGFR, platelet derived growth factor (PDGF)/PDGFR, BAFF/TACI, Indian hedgehog, Wnt, and BMP signaling pathways,where genetic studies have revealed an absolute requirement for GAGs in these pathways. Most importantly, protein/GAG aggregates induce thrombin generation and immune system upregulation by activating the contact system. Abnormal protein/GAG aggregates are associated with a variety of devastating human diseases including, but not limited to, Alzheimer's, diabetes, prion or transmissible spongiform encephalopathies, Lupus, heparin-induced thrombocytopenia/thrombosis, and different kinds of cancers. Therefore, GAGs are essential components of modern molecular biology and human physiology. Understanding GAG structure and function at molecular level with regard to development and health represents a unique opportunity in combating different kinds of human diseases.
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Affiliation(s)
- Lijuan Zhang
- Department of Pathology and Immunology, Washington University Medical School, St. Louis, MO, USA
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38
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Koźma EM, Wisowski G, Olczyk K. Platelet derived growth factor BB is a ligand for dermatan sulfate chain(s) of small matrix proteoglycans from normal and fibrosis affected fascia. Biochimie 2009; 91:1394-404. [DOI: 10.1016/j.biochi.2009.07.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2009] [Accepted: 07/16/2009] [Indexed: 11/28/2022]
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Flangea C, Schiopu C, Sisu E, Serb A, Przybylski M, Seidler DG, Zamfir AD. Determination of sulfation pattern in brain glycosaminoglycans by chip-based electrospray ionization ion trap mass spectrometry. Anal Bioanal Chem 2009; 395:2489-98. [PMID: 19826794 DOI: 10.1007/s00216-009-3167-0] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2009] [Revised: 09/15/2009] [Accepted: 09/17/2009] [Indexed: 01/30/2023]
Abstract
Chondroitin sulfate (CS) and dermatan sulfate (DS) glycosaminoglycans display variability of sulfation in their constituent disaccharide repeats during chain elongation. Since a large proportion of the extracellular matrix of the central nervous system (CNS) is composed of proteoglycans, CS/DS disaccharide degree and profile of sulfation play important roles in the functional diversity of neurons, brain development, and some of its pathological states. To investigate the sulfation pattern of CS/DS structures expressed in CNS, we introduced here a novel method based on an advanced system encompassing fully automated chip nanoelectrospray ionization (nanoESI) in the negative ion mode and high capacity ion trap multistage mass spectrometry (MS(2)-MS(3)) by collision-induced dissociation (CID). This method, introduced here for the first time in glycomics of brain glycosaminoglycans, was particularly applied to structural investigation of disaccharides obtained by beta-elimination and digestion with chondroitin B and AC I lyase of hybrid CS/DS chains from wild-type mouse brain. Screening in the chip-MS mode of DS disaccharide fraction resulting after depolymerization with chondroitin B lyase revealed molecular ions assigned to monosulfated disaccharide species having a composition of 4,5-Delta-[IdoA-GalNAc]. By optimized CID MS(2)-MS(3), fragment ions supporting the localization of sulfate ester group at C4 within GalNAc were produced. Chip ESI MS profiling of CS disaccharide fraction obtained by depolymerization of the same CS/DS chain using chondroitin AC I lyase indicated the occurrence of mono- and bisulfated 4,5-Delta-[GlcA-GalNAc]. The site of oversulfation was determined by MS(2)-MS(3), which provided sequence patterns consistent with a rare GlcA-3-sulfate-GalNAc-6-sulfate structural motif. Figure Mouse brain GlcA-3-sulfate-GalNAc-6-sulfate structural motif.
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Affiliation(s)
- Corina Flangea
- Mass Spectrometry Laboratory, National Institute for Research and Development in Electrochemistry and Condensed Matter, Plautius Andronescu Str. 1, 300224, Timisoara, Romania
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40
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Pacheco B, Maccarana M, Malmström A. Dermatan 4-O-sulfotransferase 1 is pivotal in the formation of iduronic acid blocks in dermatan sulfate. Glycobiology 2009; 19:1197-203. [PMID: 19661164 DOI: 10.1093/glycob/cwp110] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Chondroitin/dermatan sulfate is a highly complex linear polysaccharide ubiquitously found in the extracellular matrix and at the cell surface. Several of its functions, such as binding to growth factors, are mediated by domains composed of alternating iduronic acid and 4-O-sulfated N-acetylgalactosamine residues, named 4-O-sulfated iduronic acid blocks. These domains are generated by the action of two DS-epimerases, which convert D-glucuronic acid into its epimer L-iduronic acid, in close connection with 4-O-sulfation. In this study, dermatan sulfate structure was evaluated after downregulating or increasing dermatan 4-O-sulfotransferase 1 (D4ST-1) expression. siRNA-mediated downregulation of D4ST-1 in primary human lung fibroblasts led to a drastic specific reduction of iduronic acid blocks. No change of epimerase activity was found, indicating that the influence of D4ST-1 on epimerization is not due to an altered expression level of the DS-epimerases. Analysis of the dermatan sulfate chains showed that D4ST-1 is essential for the biosynthesis of the disulfated structure iduronic acid-2-O-sulfate-N-acetylgalactosamine-4-O-sulfate, thus confirmed to be strictly connected with the iduronic acid blocks. Also the biologically important residue hexuronic acid-N-acetylgalactosamine-4,6-O-disulfate considerably decreased after D4ST-1 downregulation. In conclusion, D4ST-1 is a key enzyme and is indispensable in the formation of important functional domains in dermatan sulfate and cannot be compensated by other 4-O-sulfotransferases.
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Affiliation(s)
- Benny Pacheco
- Department of Experimental Medical Science, Lund University, Lund, Sweden
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41
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Asada M, Shinomiya M, Suzuki M, Honda E, Sugimoto R, Ikekita M, Imamura T. Glycosaminoglycan affinity of the complete fibroblast growth factor family. Biochim Biophys Acta Gen Subj 2009; 1790:40-8. [DOI: 10.1016/j.bbagen.2008.09.001] [Citation(s) in RCA: 85] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2008] [Revised: 09/01/2008] [Accepted: 09/04/2008] [Indexed: 11/17/2022]
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Deakin JA, Blaum BS, Gallagher JT, Uhrín D, Lyon M. The binding properties of minimal oligosaccharides reveal a common heparan sulfate/dermatan sulfate-binding site in hepatocyte growth factor/scatter factor that can accommodate a wide variety of sulfation patterns. J Biol Chem 2008; 284:6311-21. [PMID: 19114710 DOI: 10.1074/jbc.m807671200] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Heparan sulfate (HS)/heparin and dermatan sulfate (DS) both bind with high affinity to hepatocyte growth factor/scatter factor (HGF/SF) and function as necessary co-factors in vitro. How both these two structurally distinct glycosaminoglycans (GAGs) are recognized has remained unclear. We have now reconciled this issue using a panel of minimal tri- and tetrasaccharide sequences of variable but well defined sulfation patterns in combination with further development of the gel mobility shift assay to allow simultaneous comparisons of relative protein affinities/selectivities for different oligosaccharides. From this approach it would seem that a minimum binding sequence is a disulfated trisaccharide comprised of an internal iduronate flanked by monosulfated hexosamine residues and that additional sulfation further enhances affinity. However, the similarity in recognition of HS/heparin and DS seems to arise primarily from a lack of any apparent positional requirement for sulfation. Thus, isomers of HS/heparin tetrasaccharides containing only two sulfates irrespective of whether they are purely N-, 2-O-, or 6-O-sulfates bind with equivalent apparent affinity as a disulfated DS tetrasaccharide. In addition, the NMR chemical shifts induced in NK1 (the truncated variant of HGF/SF comprised of the N-terminal and first Kringle domains) by titration with either heparin or DS oligosaccharides strongly indicate that both bind to essentially the same site. Together, these observations reveal an unexpected degree of flexibility in the GAG-HGF/SF interface, allowing a single binding site in the protein to accommodate iduronate-containing sequences of variable sulfation pattern and/or density from different GAGs.
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Affiliation(s)
- Jon A Deakin
- Cancer Research UK Glyco-Oncology Group, School of Cancer and Imaging Sciences, Paterson Institute for Cancer Research, University of Manchester, Wilmslow Rd., Manchester M20 4BX, United Kingdom
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43
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Malavaki C, Mizumoto S, Karamanos N, Sugahara K. Recent advances in the structural study of functional chondroitin sulfate and dermatan sulfate in health and disease. Connect Tissue Res 2008; 49:133-9. [PMID: 18661328 DOI: 10.1080/03008200802148546] [Citation(s) in RCA: 113] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Chondroitin sulfate (CS) dermatan sulfate (DS), and CS/DS hybrid chains are biologically active like heparan sulfate, and structurally the most complex species of the glycosaminoglycan family along with heparan sulfate. They exist at the cell surface and extracellular matrix in the form of proteoglycans. They function as regulators of functional proteins such as growth factors, cytokines, chemokines, adhesion molecules, and lipoproteins through interactions with the ligands of these proteins via specific saccharide domains. Structural alterations have been often implicated in pathological conditions, such as cancer and atherosclerosis. Recent microsequencing of CS/DS oligosaccharides that bind growth factors, such as pleiotrophin, and various monoclonal antibodies against CS/DS, have revealed a considerable number of unique oligosaccharide sequences. This review focuses on recent advances in the study of the structure-function relation of CS, DS and their hybrid chains in physiological and pathological conditions.
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Affiliation(s)
- Christina Malavaki
- Laboratory of Proteoglycan Signaling and Therapeutics, Hokkaido University Graduate School of Life Science, Sapporo, Japan
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44
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Gemma E, Meyer O, Uhrín D, Hulme AN. Enabling methodology for the end functionalisation of glycosaminoglycan oligosaccharides. MOLECULAR BIOSYSTEMS 2008; 4:481-95. [DOI: 10.1039/b801666f] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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45
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Catlow KR, Deakin JA, Wei Z, Delehedde M, Fernig DG, Gherardi E, Gallagher JT, Pavão MSG, Lyon M. Interactions of hepatocyte growth factor/scatter factor with various glycosaminoglycans reveal an important interplay between the presence of iduronate and sulfate density. J Biol Chem 2007; 283:5235-48. [PMID: 18156180 DOI: 10.1074/jbc.m706589200] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Hepatocyte growth factor/scatter factor (HGF/SF) has a cofactor requirement for heparan sulfate (HS) and dermatan sulfate (DS) in the optimal activation of its signaling receptor MET. However, these two glycosaminoglycans (GAGs) have different sugar backbones and sulfation patterns, with only the presence of iduronate in common. The structural basis for GAG recognition and activation is thus very unclear. We have clarified this by testing a wide array of natural and modified GAGs for both protein binding and activation. Comparisons between Ascidia nigra (2,6-O-sulfated) and mammalian (mainly 4-O-sulfated) DS species, as well as between a panel of specifically desulfated heparins, revealed that no specific sulfate isomer, in either GAG, is vital for interaction and activity. Moreover, different GAGs of similar sulfate density had comparable properties, although affinity and potency notably increase with increasing sulfate density. The weaker interaction with CS-E, compared with DS, shows that GlcA-containing polymers can bind, if highly sulfated, but emphasizes the importance of the flexible IdoA ring. Our data indicate that the preferred binding sites in DS in vivo will be comprised of disulfated, IdoA(2S)-containing motifs. In HS, clustering of N-/2-O-/6-O-sulfation in S-domains will lead to strong reactivity, although binding can also be mediated by the transition zones where sulfates are mainly at the N- and 6-O- positions. GAG recognition of HGF/SF thus appears to be primarily driven by electrostatic interactions and exhibits an interesting interplay between requirements for iduronate and sulfate density that may reflect in part a preference for particular sugar chain conformations.
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Affiliation(s)
- Krista R Catlow
- Cancer Research UK Glyco-Oncology Group, School of Cancer and Imaging Sciences, Paterson Institute for Cancer Research, University of Manchester, Manchester M20 4BX, United Kingdom
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46
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Raiber EA, Wilkinson JA, Manetti F, Botta M, Deakin J, Gallagher J, Lyon M, Ducki SW. Novel heparin/heparan sulfate mimics as inhibitors of HGF/SF-induced MET activation. Bioorg Med Chem Lett 2007; 17:6321-5. [PMID: 17870532 DOI: 10.1016/j.bmcl.2007.08.074] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2007] [Revised: 08/30/2007] [Accepted: 08/31/2007] [Indexed: 11/22/2022]
Abstract
The synthesis of simple, non-sugar glycosaminoglycan (GAG) mimics has been achieved and the analogues evaluated for their ability to inhibit the activation of the MET receptor by hepatocyte growth factor/scatter factor (HGF/SF).
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Affiliation(s)
- Eun-Ang Raiber
- Centre for Molecular Drug Design, Cockcroft Building, University of Salford, Salford, UK
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47
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Rühland C, Schönherr E, Robenek H, Hansen U, Iozzo RV, Bruckner P, Seidler DG. The glycosaminoglycan chain of decorin plays an important role in collagen fibril formation at the early stages of fibrillogenesis. FEBS J 2007; 274:4246-55. [PMID: 17651433 DOI: 10.1111/j.1742-4658.2007.05951.x] [Citation(s) in RCA: 119] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Decorin is a multifunctional small leucine-rich proteoglycan involved in the regulation of collagen fibrillogenesis. In patients with a variant of Ehlers-Danlos syndrome, about half of the secreted decorin lacks the single glycosaminoglycan side chain. Notably, these patients have a skin-fragility phenotype that resembles that of decorin null mice. In this study, we investigated the role of glycanated and unglycanated decorin on collagen fibrillogenesis. Glycosaminoglycan-free decorin, generated by mutating Ser4 of the mature protein core into Ala (DCN-S4A), showed reduced inhibition of fibrillogenesis compared with the decorin proteoglycan. Interestingly, using a 3D matrix generated by decorin-null fibroblasts, an increase in fibril diameter was found after the addition of decorin, and even greater effects were observed with DCN-S4A. To avoid potential side effects of artificial tags, adenoviruses containing decorin and DCN-S4A were used to transduce decorin-null fibroblasts prior to matrix formation. Both molecules were efficiently incorporated into the matrix, with no changes in collagen composition and network formation, or altered expression of the related proteoglycan biglycan. Both decorin and DCN-S4A mutants increased the collagen fibril diameter, with the latter showing the most prominent effects. These data show that at early stages of fibrillogenesis, the glycosaminoglycan chain of decorin has a reducing effect on collagen fibril diameter.
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Affiliation(s)
- Claus Rühland
- Department of Physiological Chemistry and Pathobiochemistry, University of Münster, Germany
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48
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Purushothaman A, Fukuda J, Mizumoto S, ten Dam GB, van Kuppevelt TH, Kitagawa H, Mikami T, Sugahara K. Functions of Chondroitin Sulfate/Dermatan Sulfate Chains in Brain Development. J Biol Chem 2007; 282:19442-52. [PMID: 17500059 DOI: 10.1074/jbc.m700630200] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Chondroitin sulfate (CS) and dermatan sulfate (DS) have been implicated in the processes of neural development in the brain. In this study, we characterized developmentally regulated brain CS/DS chains using a single chain antibody, GD3G7, produced by the phage display technique. Evaluation of the specificity of GD3G7 toward various glycosaminoglycan preparations showed that this antibody specifically reacted with squid CS-E (rich in the GlcUAbeta1-3GalNAc(4,6-O-sulfate) disaccharide unit E), hagfish CS-H (rich in the IdoUAalpha1-3GalNAc(4,6-O-sulfate) unit iE), and shark skin DS (rich in both E and iE units). In situ hybridization for the expression of N-acetylgalac-tosamine-4-sulfate 6-O-sulfotransferase in the postnatal mouse brain, which is involved in the biosynthesis of CS/DS-E, showed a widespread expression of the transcript in the developing brain except at postnatal day 7, where strong expression was observed in the external granule cell layer in the cerebellum. The expression switched from the external to internal granule cell layer with development. Immunohistochemical localization of GD3G7 in the mouse brain showed that the epitope was relatively abundant in the cerebellum, hippocampus, and olfactory bulb. GD3G7 suppressed the growth of neurites in embryonic hippocampal neurons mediated by CS-E, suggesting that the epitope is embedded in the neurite outgrowth-promoting motif of CS-E. In addition, a CS-E decasaccharide fraction was found to be the critical minimal structure needed for recognition by GD3G7. Four discrete decasaccharide epitopic sequences were identified. The antibody GD3G7 has broad applications in investigations of CS/DS chains during the central nervous system's development and under various pathological conditions.
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Affiliation(s)
- Anurag Purushothaman
- Department of Biochemistry, Kobe Pharmaceutical University, Higashinada-ku, Kobe 658-8558, Japan
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49
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Herbert AP, Deakin JA, Schmidt CQ, Blaum BS, Egan C, Ferreira VP, Pangburn MK, Lyon M, Uhrín D, Barlow PN. Structure Shows That a Glycosaminoglycan and Protein Recognition Site in Factor H Is Perturbed by Age-related Macular Degeneration-linked Single Nucleotide Polymorphism. J Biol Chem 2007; 282:18960-8. [PMID: 17360715 DOI: 10.1074/jbc.m609636200] [Citation(s) in RCA: 93] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
A common single nucleotide polymorphism in the factor H gene predisposes to age-related macular degeneration. Factor H blocks the alternative pathway of complement on self-surfaces bearing specific polyanions, including the glycosaminoglycan chains of proteoglycans. Factor H also binds C-reactive protein, potentially contributing to noninflammatory apoptotic processes. The at risk sequence contains His (rather than Tyr) at position 402 (384 in the mature protein), in the seventh of the 20 complement control protein (CCP) modules (CCP7) of factor H. We expressed both His(402) and Tyr(402) variants of CCP7, CCP7,8, and CCP6-8. We determined structures of His(402) and Tyr(402) CCP7 and showed them to be nearly identical. The side chains of His/Tyr(402) have similar, solvent-exposed orientations far from interfaces with CCP6 and -8. Tyr(402) CCP7 bound significantly more tightly than His(402) CCP7 to a heparin affinity column as well as to defined-length sulfated heparin oligosaccharides employed in gel mobility shift assays. This observation is consistent with the position of the 402 side chain on the edge of one of two glycosaminoglycan-binding surface patches on CCP7 that we inferred on the basis of chemical shift perturbation studies with a sulfated heparin tetrasaccharide. According to surface plasmon resonance measurements, Tyr(402) CCP6-8 binds significantly more tightly than His(402) CCP6-8 to immobilized C-reactive protein. The data support a causal link between H402Y and age-related macular degeneration in which variation at position 402 modulates the response of factor H to age-related changes in the glycosaminoglycan composition and apoptotic activity of the macula.
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Affiliation(s)
- Andrew P Herbert
- Edinburgh Biomolecular NMR Unit, School of Chemistry and School of Biological Sciences, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, Scotland, United Kingdom
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50
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Crespo D, Asher RA, Lin R, Rhodes KE, Fawcett JW. How does chondroitinase promote functional recovery in the damaged CNS? Exp Neurol 2007; 206:159-71. [PMID: 17572406 DOI: 10.1016/j.expneurol.2007.05.001] [Citation(s) in RCA: 97] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2007] [Revised: 04/28/2007] [Accepted: 05/02/2007] [Indexed: 12/22/2022]
Abstract
A number of recent studies have established that the bacterial enzyme chondroitinase ABC promotes functional recovery in the injured CNS. The issue of how it works is rarely addressed, however. The effects of the enzyme are presumed to be due to the degradation of inhibitory chondroitin sulphate GAG chains. Here we review what is known about the composition, structure and distribution of the extracellular matrix in the CNS, and how it changes in response to injury. We summarize the data pertaining to the ability of chondroitinase to promote functional recovery, both in the context of axon regeneration and the reactivation of plasticity. We also present preliminary data on the persistence of the effects of the enzyme in vivo, and its hyaluronan-degrading activity in CNS homogenates in vitro. We then consider precisely how the enzyme might influence functional recovery in the CNS. The ability of chondroitinase to degrade hyaluronan is likely to result in greater matrix disruption than the degradation of chondroitin sulphate alone.
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Affiliation(s)
- Dámaso Crespo
- Cambridge University Centre for Brain Repair, Forvie Site, Robinson Way, Cambridge, CB2 2PY, UK
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