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Kuang K, Chen X, Wang M, Han W, Qiu X, Jin T, Xu R, Yuan B, Qian M, Li C, Xiang R, Li F, Zhang S, Yang Z, Du J, Li D, Zhang C, Wang Q, Jia T. Design and Discovery of New Collagen V-Derived FGF2-Blocking Natural Peptides Inhibiting Lung Squamous Cell Carcinoma In Vitro and In Vivo. J Med Chem 2024. [PMID: 39045829 DOI: 10.1021/acs.jmedchem.4c00654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2024]
Abstract
Aberrant FGF2/FGFR signaling is implicated in lung squamous cell carcinoma (LSCC), posing treatment challenges due to the lack of targeted therapeutic options. Designing drugs that block FGF2 signaling presents a promising strategy different from traditional kinase inhibitors. We previously reported a ColVα1-derived fragment, HEPV (127AA), that inhibits FGF2-induced angiogenesis. However, its large size may limit therapeutic application. This study combines rational peptide design, molecular dynamics simulations, knowledge-based prediction, and GUV and FRET assays to identify smaller peptides with FGF2-blocking properties. We synthesized two novel peptides, HBS-P1 (45AA) and HBS-P2 (66AA), that retained the heparin-binding site. Both peptides demonstrated anti-LSCC and antiangiogenesis properties in cell viability and microvessel network induction assays. In two LSCC subcutaneous models, HBS-P1, with its affinity for FGF2 and enhanced penetration ability, demonstrated substantial therapeutic potential without apparent toxicities. Our study provides the first evidence supporting the development of collagen V-derived natural peptides as FGF2-blocking agents for LSCC treatment.
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Affiliation(s)
- Keli Kuang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Xiang Chen
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Maolin Wang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Weijing Han
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China
| | - Xue Qiu
- Key Laboratory of Marine Drug, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
- Laboratory forMarine Drugs and Bioproducts, Qingdao National Laboratory for Marine Scienceand Technology, Ocean University of China, Qingdao 266237, China
| | - Taoli Jin
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China
| | - Rong Xu
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China
| | - Bing Yuan
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, China
| | - Meiqi Qian
- Key Laboratory of Marine Drug, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
- Laboratory forMarine Drugs and Bioproducts, Qingdao National Laboratory for Marine Scienceand Technology, Ocean University of China, Qingdao 266237, China
| | - Chunyan Li
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Run Xiang
- Department of Thoracic Surgery, Sichuan Clinical Research Center for Cancer, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, Affiliated Cancer Hospital of University of Electronic Science and Technology of China, Chengdu 610041, China
| | - Fei Li
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Shuwen Zhang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Zi Yang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Junrong Du
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Dapeng Li
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Chun Zhang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Qiantao Wang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Tao Jia
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
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Yan W, Huang C, Yan Y, Wang P, Yuwen W, Zhu C, Fu R, Duan Z, Fan D. Expression, characterization and antivascular activity of amino acid sequence repeating collagen hexadecapeptide. Int J Biol Macromol 2024; 270:131886. [PMID: 38677696 DOI: 10.1016/j.ijbiomac.2024.131886] [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: 02/07/2024] [Revised: 04/16/2024] [Accepted: 04/24/2024] [Indexed: 04/29/2024]
Abstract
Type V collagen is an essential component of the extracellular matrix (ECM), and its remodeling releases specific protein fragments that can specifically inhibit endothelial cell responses such as proliferation, migration, and invasion. In this study, we have successfully constructed two engineered strains of Pichia pastoris capable of producing recombinant collagen through a new genetic engineering approach. Through high-density fermentation, the expression of 1605 protein and 1610 protein could reach 2.72 g/L and 4.36 g/L. With the increase of repetition times, the yield also increased. Bioactivity analysis showed that recombinant collagen could block the angiogenic effect of FGF-2 on endothelial cells by eliminating FGF-2-induced endothelial cell migration and invasion. Collectively, the recombinant proteins we successfully expressed have a wide range of potential for inhibiting angiogenesis in the biomaterials and biomedical fields.
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Affiliation(s)
- Wenjing Yan
- Engineering Research Center of Western Resource Innovation Medicine Green Manufacturing, Ministry of Education, School of Chemical Engineering, Northwest University, Xi'an 710069, China; Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Xi'an 710069, China; Biotech. & Biomed. Research Institute, Northwest University, Xi'an 710069, China
| | - Changjin Huang
- Department of Craniomaxillofacial Surgery, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yumiao Yan
- Xi'an Gaoxin No.1 High School, Xi'an, China
| | - Pan Wang
- Engineering Research Center of Western Resource Innovation Medicine Green Manufacturing, Ministry of Education, School of Chemical Engineering, Northwest University, Xi'an 710069, China; Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Xi'an 710069, China; Biotech. & Biomed. Research Institute, Northwest University, Xi'an 710069, China
| | - Weigang Yuwen
- Shaanxi Giant Biotechnology Co., Ltd., Xi'an 710065, Shaanxi, China
| | - Chenhui Zhu
- Engineering Research Center of Western Resource Innovation Medicine Green Manufacturing, Ministry of Education, School of Chemical Engineering, Northwest University, Xi'an 710069, China; Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Xi'an 710069, China; Biotech. & Biomed. Research Institute, Northwest University, Xi'an 710069, China
| | - Rongzhan Fu
- Engineering Research Center of Western Resource Innovation Medicine Green Manufacturing, Ministry of Education, School of Chemical Engineering, Northwest University, Xi'an 710069, China; Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Xi'an 710069, China; Biotech. & Biomed. Research Institute, Northwest University, Xi'an 710069, China
| | - Zhiguang Duan
- Engineering Research Center of Western Resource Innovation Medicine Green Manufacturing, Ministry of Education, School of Chemical Engineering, Northwest University, Xi'an 710069, China; Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Xi'an 710069, China; Biotech. & Biomed. Research Institute, Northwest University, Xi'an 710069, China.
| | - Daidi Fan
- Engineering Research Center of Western Resource Innovation Medicine Green Manufacturing, Ministry of Education, School of Chemical Engineering, Northwest University, Xi'an 710069, China; Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Xi'an 710069, China; Biotech. & Biomed. Research Institute, Northwest University, Xi'an 710069, China.
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Farrugia BL, Melrose J. The Glycosaminoglycan Side Chains and Modular Core Proteins of Heparan Sulphate Proteoglycans and the Varied Ways They Provide Tissue Protection by Regulating Physiological Processes and Cellular Behaviour. Int J Mol Sci 2023; 24:14101. [PMID: 37762403 PMCID: PMC10531531 DOI: 10.3390/ijms241814101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/03/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023] Open
Abstract
This review examines the roles of HS-proteoglycans (HS-PGs) in general, and, in particular, perlecan and syndecan as representative examples and their interactive ligands, which regulate physiological processes and cellular behavior in health and disease. HS-PGs are essential for the functional properties of tissues both in development and in the extracellular matrix (ECM) remodeling that occurs in response to trauma or disease. HS-PGs interact with a biodiverse range of chemokines, chemokine receptors, protease inhibitors, and growth factors in immune regulation, inflammation, ECM stabilization, and tissue protection. Some cell regulatory proteoglycan receptors are dually modified hybrid HS/CS proteoglycans (betaglycan, CD47). Neurexins provide synaptic stabilization, plasticity, and specificity of interaction, promoting neurotransduction, neurogenesis, and differentiation. Ternary complexes of glypican-1 and Robbo-Slit neuroregulatory proteins direct axonogenesis and neural network formation. Specific neurexin-neuroligin complexes stabilize synaptic interactions and neural activity. Disruption in these interactions leads to neurological deficits in disorders of functional cognitive decline. Interactions with HS-PGs also promote or inhibit tumor development. Thus, HS-PGs have complex and diverse regulatory roles in the physiological processes that regulate cellular behavior and the functional properties of normal and pathological tissues. Specialized HS-PGs, such as the neurexins, pikachurin, and Eyes-shut, provide synaptic stabilization and specificity of neural transduction and also stabilize the axenome primary cilium of phototoreceptors and ribbon synapse interactions with bipolar neurons of retinal neural networks, which are essential in ocular vision. Pikachurin and Eyes-Shut interactions with an α-dystroglycan stabilize the photoreceptor synapse. Novel regulatory roles for HS-PGs controlling cell behavior and tissue function are expected to continue to be uncovered in this fascinating class of proteoglycan.
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Affiliation(s)
- Brooke L. Farrugia
- Department of Biomedical Engineering, Faculty of Engineering and Information Technology, University of Melbourne, Melbourne, VIC 3010, Australia;
| | - James Melrose
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, NSW 2052, Australia
- Raymond Purves Laboratory of Bone and Joint Research, Kolling Institute of Medical Research, Northern Sydney Local Health District, Royal North Shore Hospital, St. Leonards, NSW 2065, Australia
- Sydney Medical School (Northern), University of Sydney at Royal North Shore Hospital, St. Leonards, NSW 2065, Australia
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Ritter GS, Dolgova EV, Petrova DD, Efremov YR, Proskurina AS, Potter EA, Ruzanova VS, Kirikovich SS, Levites EV, Taranov OS, Ostanin AA, Chernykh ER, Kolchanov NA, Bogachev SS. The new general biological property of stem-like tumor cells Part I. Peculiarities of the process of the double-stranded DNA fragments internalization into stem-like tumor cells. Front Genet 2022; 13:954395. [PMID: 36159968 PMCID: PMC9492886 DOI: 10.3389/fgene.2022.954395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 08/15/2022] [Indexed: 11/19/2022] Open
Abstract
Stem-like tumor cells of ascites carcinoma Krebs-2 and Epstein-Barr virus–induced B-lymphoma were shown to possess the innate capability of binding and internalizing the TAMRA-labeled double-stranded DNA (dsDNA) probe. The process of binding and internalizing is rather complicated and composed of the following successive stages: 1) initiating electrostatic interaction and contact of a negatively charged dsDNA molecule with a positively charged molecule(s) on the surface of a stem-like tumor cell; 2) binding of the dsDNA probe to a tumor stem cell surface protein(s) via the formation of a strong chemical/molecular bond; and 3) the very internalization of dsDNA into the cell. Binding of DNA to cell surface proteins is determined by the presence of heparin/polyanion-binding sites within the protein structure, which can be competitively blocked by heparin and/or dextran sulfate, wherein heparin blocks only the binding, while dextran sulfate abrogates both binding and internalization. The abrogation of internalization by dextran sulfate implies the role of scavenger receptors in this process. Cells were shown to uptake DNA in amounts constituting ∼0.008% of the haploid genome. Inhibitors of caveolae-dependent internalization abrogate the DNA uptake in Krebs-2 cells, and inhibitors of the clathrin/caveolar mechanism block the internalization in B-lymphoma cells. In the present report, it is shown for the first time that in contrast to the majority of committed tumor cells, stem-like tumor cells of Krebs-2 and B-lymphoma carry a general positive charge on their surface.
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Affiliation(s)
- Genrikh S. Ritter
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Evgeniya V. Dolgova
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Daria D. Petrova
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Yaroslav R. Efremov
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
- Novosibirsk National Research State University, Novosibirsk, Russia
| | - Anastasia S. Proskurina
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Ekaterina A. Potter
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Vera S. Ruzanova
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
- Novosibirsk National Research State University, Novosibirsk, Russia
| | - Svetlana S. Kirikovich
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Evgeniy V. Levites
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Oleg S. Taranov
- State Research Center of Virology and Biotechnology “Vector”, Koltsovo, Russia
| | - Alexandr A. Ostanin
- Research Institute of Fundamental and Clinical Immunology, Novosibirsk, Russia
| | - Elena R. Chernykh
- Research Institute of Fundamental and Clinical Immunology, Novosibirsk, Russia
| | - Nikolay A. Kolchanov
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - Sergey S. Bogachev
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
- Correspondence: Sergey S. Bogachev,
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Jia T, Vaganay E, Carpentier G, Coudert P, Guzman-Gonzales V, Manuel R, Eymin B, Coll JL, Ruggiero F. A collagen Vα1-derived fragment inhibits FGF-2 induced-angiogenesis by modulating endothelial cells plasticity through its heparin-binding site. Matrix Biol 2020; 94:18-30. [DOI: 10.1016/j.matbio.2020.07.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 07/10/2020] [Accepted: 07/10/2020] [Indexed: 01/22/2023]
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Chiu WC, Chen SH, Lo MC, Kuo YT. Classic Ehlers–Dalnos syndrome presenting as atypical chronic haematoma: a case report with novel frameshift mutation in COL5A1. BMC Pediatr 2020; 20:495. [PMID: 33109150 PMCID: PMC7590603 DOI: 10.1186/s12887-020-02386-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 10/14/2020] [Indexed: 11/30/2022] Open
Abstract
Background Ehlers–Danlos syndrome (EDS) is a group of inherited connective tissue disorders characterized by skin hyperextensibility, joint hypermobility and soft tissue vulnerable to blunt injury. Early recognition and diagnosis are crucial to patients to provide appropriate treatment, as well as to screen for life-threatening conditions such as aortic dissection and hollow organ perforation. The diagnosis of EDS is made based on clinical presentations, skin biopsy, and electron microscopy findings. To date, mutations in at least 20 genes have been found to cause the Ehlers-Danlos syndromes. However, EDS is still underestimated due to lack of awareness of its variable clinical presentations. Here we reported an EDS case with atypical initial presentation and a novel genetic mutation. Case presentation This 4-year-old Taiwanese male patient presented with easy bruising, multiple ecchymoses, joint hypermobility, hyperextensible skin, and prolonged pretibial haematoma. He was initially suspected of a bleeding tendency due to coagulation disorders. The coagulation test results were normal. DNA sequencing was performed for molecular diagnosis. Subsequently, the diagnosis of classical EDS was made by identifying a novel frameshift mutation in COL5A1 [NM_000093.4:c.4211_4212delAG, p.Gln1404Arg]. This mutation in the type V collagen gene COL5A1 contributes to the phenotype of classical EDS. This novel frameshift mutation may disturb the structural stability of collagen V and interfere with its heparin binding capacity, explaining the chronic haematoma. Conclusion The reported case showed the unusual features of chronic haematoma. This novel frameshift mutation and its phenotype correlation can provide useful information for practitioners about early recognition in Ehlers–Danlos syndrome.
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Levinson C, Lee M, Applegate LA, Zenobi-Wong M. An injectable heparin-conjugated hyaluronan scaffold for local delivery of transforming growth factor β1 promotes successful chondrogenesis. Acta Biomater 2019; 99:168-180. [PMID: 31536840 DOI: 10.1016/j.actbio.2019.09.017] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 09/05/2019] [Accepted: 09/11/2019] [Indexed: 02/08/2023]
Abstract
Cartilage lacks basic repair mechanisms and thus surgical interventions are necessary to treat lesions. Minimally-invasive arthroscopic procedures require the development of injectable biomaterials to support chondrogenesis of implanted cells. However, most cartilage tissue engineering approaches rely on pre-culture of scaffolds in media containing growth factors (GFs) such as transforming growth factor (TGF)-β1, which are crucial for cartilage formation and homeostasis. GFs media-supplementation is incompatible with injectable approaches and has led to a knowledge gap about optimal dose of GFs and release profiles needed to achieve chondrogenesis. This study aims to determine the optimal loading and release kinetics of TGF-β1 bound to an engineered GAG hydrogel to promote optimal cartilaginous matrix production in absence of TGF-β1 media-supplementation. We show that heparin, a GAG known to bind a wide range of GFs, covalently conjugated to a hyaluronan hydrogel, leads to a sustained release of TGF-β1. Using this heparin-conjugated hyaluronan hydrogel, 0.25 to 50 ng TGF-β1 per scaffold was loaded and cell viability, proliferation and cartilaginous matrix deposition of the encapsulated chondroprogenitor cells were measured. Excellent chondrogenesis was found when 5 ng TGF-β1 per scaffold and higher were used. We also demonstrate the necessity of a sustained release of TGF-β1, as no matrix deposition is observed upon a burst release. In conclusion, our biomaterial loaded with an optimal initial dose of 5 ng/scaffold TGF-β1 is a promising injectable material for cartilage repair, with potentially increased safety due to the low, locally administered GF dose. STATEMENT OF SIGNIFICANCE: Cartilage cell-based products are dependent on exogenous growth factor supplementation in order for proper tissue maturation. However, for a one-step repair of defects without need for expensive tissue maturation, an injectable, growth factor loaded formulation is required. Here we show development of an injectable hyaluronan hydrogel, which achieves a sustained release of TGF-β1 due to covalent conjugation of heparin. These grafts matured into cartilaginous tissue in the absence of growth factor supplementation. Additionally, this system allowed us to screen TGF-β1 concentrations to determine the mimimum amount of growth factor required for chondrogenesis. This study represents a critical step towards development of a minimally-invasive, arthroscopic treatment for cartilage lesions.
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Runeberg-Roos P, Piccinini E, Penttinen AM, Mätlik K, Heikkinen H, Kuure S, Bespalov MM, Peränen J, Garea-Rodríguez E, Fuchs E, Airavaara M, Kalkkinen N, Penn R, Saarma M. Developing therapeutically more efficient Neurturin variants for treatment of Parkinson's disease. Neurobiol Dis 2016; 96:335-345. [PMID: 27425888 DOI: 10.1016/j.nbd.2016.07.008] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 07/04/2016] [Accepted: 07/13/2016] [Indexed: 10/21/2022] Open
Abstract
In Parkinson's disease midbrain dopaminergic neurons degenerate and die. Oral medications and deep brain stimulation can relieve the initial symptoms, but the disease continues to progress. Growth factors that might support the survival, enhance the activity, or even regenerate degenerating dopamine neurons have been tried with mixed results in patients. As growth factors do not pass the blood-brain barrier, they have to be delivered intracranially. Therefore their efficient diffusion in brain tissue is of crucial importance. To improve the diffusion of the growth factor neurturin (NRTN), we modified its capacity to attach to heparan sulfates in the extracellular matrix. We present four new, biologically fully active variants with reduced heparin binding. Two of these variants are more stable than WT NRTN in vitro and diffuse better in rat brains. We also show that one of the NRTN variants diffuses better than its close homolog GDNF in monkey brains. The variant with the highest stability and widest diffusion regenerates dopamine fibers and improves the conditions of rats in a 6-hydroxydopamine model of Parkinson's disease more potently than GDNF, which previously showed modest efficacy in clinical trials. The new NRTN variants may help solve the major problem of inadequate distribution of NRTN in human brain tissue.
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Affiliation(s)
- Pia Runeberg-Roos
- Institute of Biotechnology, University of Helsinki, PB 56 (Viikinkaari 5D), FIN-00014, Finland.
| | - Elisa Piccinini
- Institute of Biotechnology, University of Helsinki, PB 56 (Viikinkaari 5D), FIN-00014, Finland
| | - Anna-Maija Penttinen
- Institute of Biotechnology, University of Helsinki, PB 56 (Viikinkaari 5D), FIN-00014, Finland
| | - Kert Mätlik
- Institute of Biotechnology, University of Helsinki, PB 56 (Viikinkaari 5D), FIN-00014, Finland
| | - Hanna Heikkinen
- Institute of Biotechnology, University of Helsinki, PB 56 (Viikinkaari 5D), FIN-00014, Finland
| | - Satu Kuure
- Institute of Biotechnology, University of Helsinki, PB 56 (Viikinkaari 5D), FIN-00014, Finland
| | - Maxim M Bespalov
- Institute of Biotechnology, University of Helsinki, PB 56 (Viikinkaari 5D), FIN-00014, Finland
| | - Johan Peränen
- Institute of Biotechnology, University of Helsinki, PB 56 (Viikinkaari 5D), FIN-00014, Finland
| | - Enrique Garea-Rodríguez
- Department of Neuroanatomy, Institute for Anatomy and Cell Biology, University of Freiburg, Freiburg, Germany
| | | | - Mikko Airavaara
- Institute of Biotechnology, University of Helsinki, PB 56 (Viikinkaari 5D), FIN-00014, Finland
| | - Nisse Kalkkinen
- Institute of Biotechnology, University of Helsinki, PB 56 (Viikinkaari 5D), FIN-00014, Finland
| | - Richard Penn
- CNS Therapeutics Inc., 332 Minnesota Street, Ste W1750, St. Paul, MN 55101, USA
| | - Mart Saarma
- Institute of Biotechnology, University of Helsinki, PB 56 (Viikinkaari 5D), FIN-00014, Finland
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Gallagher J. Fell-Muir Lecture: Heparan sulphate and the art of cell regulation: a polymer chain conducts the protein orchestra. Int J Exp Pathol 2015; 96:203-31. [PMID: 26173450 PMCID: PMC4561558 DOI: 10.1111/iep.12135] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Accepted: 05/22/2015] [Indexed: 12/12/2022] Open
Abstract
Heparan sulphate (HS) sits at the interface of the cell and the extracellular matrix. It is a member of the glycosaminoglycan family of anionic polysaccharides with unique structural features designed for protein interaction and regulation. Its client proteins include soluble effectors (e.g. growth factors, morphogens, chemokines), membrane receptors and cell adhesion proteins such as fibronectin, fibrillin and various types of collagen. The protein-binding properties of HS, together with its strategic positioning in the pericellular domain, are indicative of key roles in mediating the flow of regulatory signals between cells and their microenvironment. The control of transmembrane signalling is a fundamental element in the complex biology of HS. It seems likely that, in some way, HS orchestrates diverse signalling pathways to facilitate information processing inside the cell. A dictionary definition of an orchestra is 'a large group of musicians who play together on various instruments …' to paraphrase, the HS orchestra is 'a large group of proteins that play together on various receptors'. HS conducts this orchestra to ensure that proteins hit the right notes on their receptors but, in the manner of a true conductor, does it also set 'the musical pulse' and create rhythm and harmony attractive to the cell? This is too big a question to answer but fun to think about as you read this review.
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Affiliation(s)
- John Gallagher
- Cancer Research UK Manchester Institute, Institute of Cancer Sciences, Paterson Building, University of Manchester, Manchester, UK
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10
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Yalak G, Olsen BR. Proteomic database mining opens up avenues utilizing extracellular protein phosphorylation for novel therapeutic applications. J Transl Med 2015; 13:125. [PMID: 25927841 PMCID: PMC4427915 DOI: 10.1186/s12967-015-0482-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Accepted: 04/07/2015] [Indexed: 02/07/2023] Open
Abstract
Recent advances in extracellular signaling suggest that extracellular protein phosphorylation is a regulatory mechanism outside the cell. The list of reported active extracellular protein kinases and phosphatases is growing, and phosphorylation of an increasing number of extracellular matrix molecules and extracellular domains of trans-membrane proteins is being documented. Here, we use public proteomic databases, collagens – the major components of the extracellular matrix, extracellular signaling molecules and proteolytic enzymes as examples to assess what the roles of extracellular protein phosphorylation may be in health and disease. We propose that novel tools be developed to help assess the role of extracellular protein phosphorylation and translate the findings for biomedical applications. Furthermore, we suggest that the phosphorylation state of extracellular matrix components as well as the presence of extracellular kinases be taken into account when designing translational medical applications.
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Affiliation(s)
- Garif Yalak
- Department of Developmental Biology, Harvard Medical School/Harvard School of Dental Medicine, 188 Longwood Avenue, Boston, MA, 02115, USA.
| | - Bjorn R Olsen
- Department of Developmental Biology, Harvard Medical School/Harvard School of Dental Medicine, 188 Longwood Avenue, Boston, MA, 02115, USA.
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Efficient production and purification of recombinant human interleukin-12 (IL-12) overexpressed in mammalian cells without affinity tag. Protein Expr Purif 2014; 102:76-84. [PMID: 25123642 DOI: 10.1016/j.pep.2014.07.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Revised: 07/04/2014] [Accepted: 07/08/2014] [Indexed: 11/20/2022]
Abstract
Interleukin-12 is a heterodimeric, pro-inflammatory cytokine that is a key driver of cell-mediated immunity. Clinical interest in IL-12 is significant due to its potent anti-tumor activity and efficacy in controlling certain infectious diseases such as Leishmaniasis and Listeria infection. For clinical applications, the ease of production and purification of IL-12 and the associated cost continues to be a consideration. In this context, we report a simple and effective heparin-affinity based purification of recombinant human IL-12 (hIL-12) from the serum-free supernatants of stable IL-12-transduced HEK293 cells. Fractionation of culture supernatants on heparin Sepharose columns revealed that hIL-12 elutes as a single peak in 500 mM NaCl. Coomassie staining and Western blot analysis showed that hIL-12 eluted in 500 mM NaCl is homogeneous. Purity of hIL-12 was ascertained by RP-HPLC and ESI-MS analysis, and found to be ∼98%. Western blot analysis, using monoclonal antibodies, demonstrated that the crucial inter-subunit disulfide bond linking the p35 and p40 subunits is intact in the purified hIL-12. Results of far UV circular dichroism, steady-state tryptophan fluorescence, and differential scanning calorimetry experiments suggest that purified hIL-12 is in its stable native conformation. Enzyme linked immunosorbent assays (ELISAs) and bioactivity studies demonstrate that hIL-12 is obtained in high yields (0.31±0.05 mg/mL of the culture medium) and is also fully bioactive. Isothermal titration calorimetry data show that IL-12 exhibits a moderate binding affinity (Kd(app)=69±1 μM) to heparin. The purification method described in this study is expected to provide greater impetus for research on the role of heparin in the regulation of the function of IL-12. In addition, the results of this study provide an avenue to obtain high amounts of IL-12 required for structural studies which are aimed at the development of novel IL-12-based therapeutics.
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12
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Identification of binding partners interacting with the α1-N-propeptide of type V collagen. Biochem J 2011; 433:371-81. [PMID: 20979576 DOI: 10.1042/bj20101061] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The predominant form of type V collagen is the [α1(V)]₂α2(V) heterotrimer. Mutations in COL5A1 or COL5A2, encoding respectively the α1(V)- and α2(V)-collagen chain, cause classic EDS (Ehlers-Danlos syndrome), a heritable connective tissue disorder, characterized by fragile hyperextensible skin and joint hypermobility. Approximately half of the classic EDS cases remain unexplained. Type V collagen controls collagen fibrillogenesis through its conserved α1(V)-N-propeptide domain. To gain an insight into the role of this domain, a yeast two-hybrid screen among proteins expressed in human dermal fibroblasts was performed utilizing the N-propeptide as a bait. We identified 12 interacting proteins, including extracellular matrix proteins and proteins involved in collagen biosynthesis. Eleven interactions were confirmed by surface plasmon resonance and/or co-immunoprecipitation: α1(I)- and α2(I)-collagen chains, α1(VI)-, α2(VI)- and α3(VI)-collagen chains, tenascin-C, fibronectin, PCPE-1 (procollagen C-proteinase enhancer-1), TIMP-1 (tissue inhibitor of metalloproteinases-1), MMP-2 (matrix metalloproteinase 2) and TGF-β1 (transforming growth factor β1). Solid-phase binding assays confirmed the involvement of the α1(V)-N-propeptide in the interaction between native type V collagen and type VI collagen, suggesting a bridging function of this protein complex in the cell-matrix environment. Enzymatic studies showed that processing of the α1(V)-N-propeptide by BMP-1 (bone morphogenetic protein 1)/procollagen C-proteinase is enhanced by PCPE-1. These interactions are likely to be involved in extracellular matrix homoeostasis and their disruption could explain the pathogenetic mechanism in unresolved classic EDS cases.
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Baas D, Malbouyres M, Haftek-Terreau Z, Le Guellec D, Ruggiero F. Craniofacial cartilage morphogenesis requires zebrafish col11a1 activity. Matrix Biol 2009; 28:490-502. [PMID: 19638309 DOI: 10.1016/j.matbio.2009.07.004] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2009] [Revised: 07/14/2009] [Accepted: 07/17/2009] [Indexed: 11/26/2022]
Abstract
The zebrafish ortholog of the human COL11A1 gene encoding the cartilage collagen XI proalpha1 chain was characterized to explore its function in developing zebrafish using the morpholino-based knockdown strategy. We showed that its expression in zebrafish is developmentally regulated. A low expression level was detected by real-time PCR during the early stages of development. At 24 hpf, a sharp peak of expression was observed. At that stage, in situ hybridization indicated that col11a1 transcripts are restricted to notochord. At 48 hpf, they were exclusively detected in the craniofacial skeleton, endoskeleton of pectoral fins and in otic vesicles. Collagen XI alpha1-deficient zebrafish embryos developed defects in craniofacial cartilage formation and in notochord morphology. Neural crest specification and mesenchymal condensation occurred normally in morpholino-injected embryos. Col11a1 depletion affected the spatial organization of chondrocytes, the shaping of cartilage elements, and the maturation of chondrocytes to hypertrophy. Knockdown of col11a1 in embryos stimulated the expression of the marker of chondrocyte differentiation col2a1, resulting in the deposit of abnormally thick and sparse fibrils in the cartilage extracellular matrix. The extracellular matrix organization of the perichordal sheath was also altered and led to notochord distortion. The data underscore the importance of collagen XI in the development of a functional cartilage matrix. Moreover, the defects observed in cartilage formation resemble those observed in human chondrodysplasia such as the Stickler/Marshall syndrome. Zebrafish represent a novel reliable vertebrate model for collagen XI collagenopathies.
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14
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Tristan A, Benito Y, Montserret R, Boisset S, Dusserre E, Penin F, Ruggiero F, Etienne J, Lortat-Jacob H, Lina G, Bowden MG, Vandenesch F. The signal peptide of Staphylococcus aureus panton valentine leukocidin LukS component mediates increased adhesion to heparan sulfates. PLoS One 2009; 4:e5042. [PMID: 19347045 PMCID: PMC2661369 DOI: 10.1371/journal.pone.0005042] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2008] [Accepted: 03/02/2009] [Indexed: 11/18/2022] Open
Abstract
Staphylococcus aureus necrotizing pneumonia is a severe disease caused by S. aureus strains carrying the Panton Valentine leukocidin (PVL) genes (lukS-PV & lukF-PV) encoded on various bacteriophages (such as phiSLT). Clinical PVL+ strains isolated from necrotizing pneumonia display an increased attachment to matrix molecules (type I and IV collagens and laminin), a phenotype that could play a role in bacterial adhesion to damaged airway epithelium during the early stages of necrotizing pneumonia (J Infect Dis 2004; 190: 1506–15). To investigate the basis of the observed adhesion of S. aureus PVL+ strains, we compared the ability of PVL+ and their isogenic PVL− strains to attach to various immobilized matrix molecules. The expression of recombinant fragments of the PVL subunits and the addition of synthetic peptides indicated that the processed LukS-PV signal peptide (LukS-PV SP) was sufficient to significantly enhance the ability of S. aureus to attach to extracellular matrix (ECM) components. Furthermore, we showed that adhesion to ECM components was inhibited by heparin and heparan sulfates (HS) suggesting that in vivo, HS could function as a molecular bridge between the matrix and S. aureus expressing the LukS-PV signal peptide. Site directed mutagenesis, biochemical and structural analyses of the LukS-PV signal peptide indicate that this peptide is present at the S. aureus surface, binds to HS in solid phase assay, and mediates the enhanced S. aureus matrix component adhesion. Our data suggests that after its cleavage by signal peptidase, the signal peptide is released from the membrane and associates to the cell wall through its unique C-terminus sequence, while its highly positively charged N-terminus is exposed on the bacterial surface, allowing its interaction with extracellular matrix-associated HS. This mechanism may provide a molecular bridge that enhances the attachment of the S. aureus PVL+ strains to ECM components exposed at damaged epithelial sites.
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Affiliation(s)
- Anne Tristan
- Université Lyon 1, Faculté Laennec, Lyon, France.
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15
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Ruggiero F, Koch M. Making recombinant extracellular matrix proteins. Methods 2008; 45:75-85. [DOI: 10.1016/j.ymeth.2008.01.003] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2008] [Accepted: 01/30/2008] [Indexed: 11/16/2022] Open
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16
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Leitinger B, Hohenester E. Mammalian collagen receptors. Matrix Biol 2007; 26:146-55. [PMID: 17141492 DOI: 10.1016/j.matbio.2006.10.007] [Citation(s) in RCA: 278] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2006] [Revised: 10/11/2006] [Accepted: 10/12/2006] [Indexed: 11/26/2022]
Abstract
Collagen-rich extracellular matrices are abundant and ubiquitous in the mammalian body. Collagens are not only essential for the mechanical stability of tissues, but are also intimately involved in controlling cell behaviour. The hallmark of collagens is a triple helix made up of polypeptide chains containing glycine-X-Y repeats. A structurally and functionally diverse group of cell surface receptors mediates the recognition of triple-helical collagen: integrins, discoidin domain receptors, glycoprotein VI, leukocyte-associated IG-like receptor-1, and members of the mannose receptor family. In this review, we discuss the structure and function of these receptors, focussing on the principles involved in collagen recognition.
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MESH Headings
- Animals
- Collagen/chemistry
- Collagen/genetics
- Collagen/metabolism
- Discoidin Domain Receptors
- Integrins/chemistry
- Integrins/genetics
- Integrins/metabolism
- Lectins, C-Type/chemistry
- Lectins, C-Type/genetics
- Lectins, C-Type/metabolism
- Mannose Receptor
- Mannose-Binding Lectins/chemistry
- Mannose-Binding Lectins/genetics
- Mannose-Binding Lectins/metabolism
- Models, Molecular
- Platelet Membrane Glycoproteins/chemistry
- Platelet Membrane Glycoproteins/genetics
- Platelet Membrane Glycoproteins/metabolism
- Protein Conformation
- Receptor Protein-Tyrosine Kinases/chemistry
- Receptor Protein-Tyrosine Kinases/genetics
- Receptor Protein-Tyrosine Kinases/metabolism
- Receptors, Cell Surface/chemistry
- Receptors, Cell Surface/genetics
- Receptors, Cell Surface/metabolism
- Receptors, Collagen/chemistry
- Receptors, Collagen/genetics
- Receptors, Collagen/metabolism
- Receptors, Immunologic/chemistry
- Receptors, Immunologic/genetics
- Receptors, Immunologic/metabolism
- Receptors, Mitogen/chemistry
- Receptors, Mitogen/genetics
- Receptors, Mitogen/metabolism
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Affiliation(s)
- Birgit Leitinger
- National Heart and Lung Institute, Imperial College London, London SW7 2AZ, UK
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17
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Ricard-Blum S, Beraud M, Raynal N, Farndale RW, Ruggiero F. Structural Requirements for Heparin/Heparan Sulfate Binding to Type V Collagen. J Biol Chem 2006; 281:25195-204. [PMID: 16815843 DOI: 10.1074/jbc.m603096200] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Collagen-proteoglycan interactions participate in the regulation of matrix assembly and in cell-matrix interactions. We reported previously that a fragment (Ile824-Pro950) of the collagen alpha1(V) chain, HepV, binds to heparin via a cluster of three major basic residues, Arg912, Arg918, and Arg921, and two additional residues, Lys905 and Arg909 (Delacoux, F., Fichard, A., Cogne, S., Garrone, R., and Ruggiero, F. (2000) J. Biol. Chem. 275, 29377-29382). Here, we further characterized the binding of HepV and collagen V to heparin and heparan sulfate by surface plasmon resonance assays. HepV bound to heparin and heparan sulfate with a similar affinity (KD approximately 18 and 36 nM, respectively) in a cation-dependent manner, and 2-O-sulfation of heparin was shown to be crucial for the binding. An octasaccharide of heparin and a decasaccharide of heparan sulfate were required for HepV binding. Studies with HepV mutants showed that the same basic residues were involved in the binding to heparin, to heparan sulfate, and to the cell surface. The contribution of Lys905 and Arg909 was found to be significant. The triple-helical peptide GPC(GPP)5G904-R918(GPP)5GPC-NH2 and native collagen V molecules formed much more stable complexes with heparin than HepV, and collagen V bound to heparin/heparan sulfate with a higher affinity (in the nanomolar range) than HepV. Heat and chemical denaturation strongly decreased the binding, indicating that the triple helix plays a major role in stabilizing the interaction with heparin. Collagen V and HepV may play different roles in cell-matrix interactions and in matrix assembly or remodeling mediated by their specific interactions with heparan sulfate.
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Affiliation(s)
- Sylvie Ricard-Blum
- Institut de Biologie et Chimie des Protéines, UMR CNRS 5086, Université Claude Bernard Lyon 1, Institut Féderatif de Recherche 128 BioSciences Gerland, 7 Passage du Vercors, 69367 Lyon Cedex 07, Lyon, France
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18
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Ricard-Blum S, Peel LL, Ruggiero F, Freeman NJ. Dual polarization interferometry characterization of carbohydrate–protein interactions. Anal Biochem 2006; 352:252-9. [PMID: 16545768 DOI: 10.1016/j.ab.2006.02.011] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2005] [Revised: 02/03/2006] [Accepted: 02/07/2006] [Indexed: 10/25/2022]
Abstract
Dual polarization interferometry (DPI) is an analytical technique that allows the simultaneous determination of thickness, density, and mass of a biological layer on a sensing waveguide surface in real time. The technique was applied to the analysis of carbohydrate-protein interactions. The selected system involved a 12-kDa recombinant fragment of collagen V (HepV) and heparin, a complex polysaccharide. Here we report on the analysis of thickness, density, and mass of surface structures obtained during the binding of HepV to heparin, which is a useful model compound for the sulfated, protein-binding regions of heparan sulfate. This system, which was initially studied for its biological relevance, displayed anomalous behavior in kinetic studies using surface plasmon resonance (SPR) assays that has been attributed to putative conformational changes. It was this putative conformational change that prompted us to investigate the binding using an alternative analytical approach. While using DPI to monitor binding events, a streptavidin layer (surface coverage 2.105 ng mm(-2)) was bound to the sensor surface (92% coverage), which captured 0.105 ng mm(-2) of biotinylated heparin (a stoichiometric ratio of 1:6 heparin-streptavidin). The heparin inserted into the streptavidin layer but was still found to be capable of binding 0.154 ng mm(-2) of HepV, which was also observed to insert into the streptavidin layer. This allowed the reliable calculation of the stoichiometric ratio for the HepV-heparin complex ( approximately 1.7:1.0), which has proved to be difficult to evaluate by SPR assays. Furthermore, real-time analysis of the heparin-HepV interaction by DPI suggested that there was some surface loss (probably of streptavidin) while the binding was occurring rather than the putative conformational change that has been suggested on the basis of kinetic data alone. This gives further insight into the binding mechanism of HepV to heparin.
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Affiliation(s)
- Sylvie Ricard-Blum
- Institut de Biologie et Chimie des Protéines, UMR 5086 CNRS-UCBL, 7 passage du Vercors 69367, Lyon cedex 07, France
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19
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Lyapina LA, Ul’yanov AM, Pastorova VE, Obergan TY. Effect of chronic intramuscular administration of low molecular weight heparin-collagen complex on hemostatic indices and development of alloxan-induced diabetes. BIOL BULL+ 2006. [DOI: 10.1134/s1062359006030150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Dinglasan RR, Jacobs-Lorena M. Insight into a conserved lifestyle: protein-carbohydrate adhesion strategies of vector-borne pathogens. Infect Immun 2006; 73:7797-807. [PMID: 16299269 PMCID: PMC1307025 DOI: 10.1128/iai.73.12.7797-7807.2005] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Rhoel R Dinglasan
- Department of Molecular Microbiology and Immunology, The Johns Hopkins Bloomberg School of Public Health, 615 N. Wolfe Street, W4008, Baltimore, MD 21205, USA.
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21
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Yamaguchi K, Matsuo N, Sumiyoshi H, Fujimoto N, Iyama KI, Yanagisawa S, Yoshioka H. Pro-α3(V) collagen chain is expressed in bone and its basic N-terminal peptide adheres to osteosarcoma cells. Matrix Biol 2005; 24:283-94. [PMID: 15908193 DOI: 10.1016/j.matbio.2005.03.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2004] [Revised: 03/09/2005] [Accepted: 03/09/2005] [Indexed: 10/25/2022]
Abstract
The third alpha-chain of type V collagen, alpha3(V) chain, was initially identified in the placenta more than 20 years ago, but was poorly characterized with regard to its expression and function. We generated a specific monoclonal antibody against the N-terminal domain of the pro-alpha3(V) chain and examined gene expression using immunohistochemical methods combined with in situ hybridization. The pro-alpha3(V) chain was seen in funis and amnion, but not chorionic villi and deciduas of mouse placenta. In mouse embryo, the transcripts of the pro-alpha3(V) gene were seen in tissues that were related to bone formation as well as developing muscle and nascent ligament previously reported. However, immunohistochemistry showed that pro-alpha3(V) protein accumulated rather in the developing bone of mouse embryo. On the other hand, the N-terminal globular domain of the pro-alpha3(V) chain has a unique structure that contains a highly basic segment of 23 amino acids. The peptide derived from the basic segment showed a specific adhesive feature to osteosarcoma cells but not to chondrosarcoma cells. The four heparin binding sites in the basic segment equally contribute toward adhesion to the osteosarcoma cells. Our data suggested that N-terminal globular domain of the pro-alpha3(V) chain influence bone formation of osteoblasts through proteoglycan on the cell surface during development or regeneration.
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Affiliation(s)
- Kenji Yamaguchi
- Department of Anatomy, Biology and Medicine, Oita University, Faculty of Medicine, 1-1 Hasama-machi, Oita 879-5593, Japan
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22
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Brodsky B, Persikov AV. Molecular Structure of the Collagen Triple Helix. FIBROUS PROTEINS: COILED-COILS, COLLAGEN AND ELASTOMERS 2005; 70:301-39. [PMID: 15837519 DOI: 10.1016/s0065-3233(05)70009-7] [Citation(s) in RCA: 346] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
The molecular conformation of the collagen triple helix confers strict amino acid sequence constraints, requiring a (Gly-X-Y)(n) repeating pattern and a high content of imino acids. The increasing family of collagens and proteins with collagenous domains shows the collagen triple helix to be a basic motif adaptable to a range of proteins and functions. Its rodlike domain has the potential for various modes of self-association and the capacity to bind receptors, other proteins, GAGs, and nucleic acids. High-resolution crystal structures obtained for collagen model peptides confirm the supercoiled triple helix conformation, and provide new information on hydrogen bonding patterns, hydration, sidechain interactions, and ligand binding. For several peptides, the helix twist was found to be sequence dependent, and such variation in helix twist may serve as recognition features or to orient the triple helix for binding. Mutations in the collagen triple-helix domain lead to a variety of human disorders. The most common mutations are single-base substitutions that lead to the replacement of one Gly residue, breaking the Gly-X-Y repeating pattern. A single Gly substitution destabilizes the triple helix through a local disruption in hydrogen bonding and produces a discontinuity in the register of the helix. Molecular information about the collagen triple helix and the effect of mutations will lead to a better understanding of function and pathology.
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Affiliation(s)
- Barbara Brodsky
- Department of Biochemistry, University of Medicine and Dentistry of New Jersey, Robert Wood Johnson Medical School, Piscataway, New Jersey 08854, USA
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23
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Weyer K, Overgaard MT, Laursen LS, Nielsen CG, Schmitz A, Christiansen M, Sottrup-Jensen L, Giudice LC, Oxvig C. Cell surface adhesion of pregnancy-associated plasma protein-A is mediated by four clusters of basic residues located in its third and fourth CCP module. ACTA ACUST UNITED AC 2004; 271:1525-35. [PMID: 15066178 DOI: 10.1111/j.1432-1033.2004.04061.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The metalloproteinase pregnancy-associated plasma protein-A (PAPP-A) cleaves a subset of insulin-like growth factor binding proteins (IGFBP), which inhibit the activities of insulin-like growth factor (IGF). Through this proteolytic activity, PAPP-A is believed to regulate IGF bioavailability in several biological systems, including the human reproductive system and the cardiovascular system. PAPP-A adheres to mammalian cells by interactions with glycosaminoglycan (GAG), thus targeting the proteolytic activity of PAPP-A to the cell surface. Based on site-directed mutagenesis, we here delineate the PAPP-A GAG-binding site in the C-terminal modules CCP3 and CCP4. Using heparin affinity chromatography, commonly employed in such studies, we define three clusters of arginines and lysines of CCP3, which are important for the interaction of PAPP-A with heparin. In a model of PAPP-A CCP3-CCP4, basic residues of these sequence clusters form a contiguous patch located on one side of the structure. Binding to the unknown, natural cell surface receptor of PAPP-A, assessed by flow cytometry, also depends on residues of these three basic clusters. However, single or double residue substitutions generally have a modest effect on PAPP-A heparin binding assessed by chromatography, but cell surface adhesion was critically reduced by several of these substitutions, emphasizing the relevance of analysis by flow cytometry. The contributions of positively charged residues located in CCP4 were all minor when analyzed by heparin affinity chromatography. However, the mutation of CCP4 residues Arg1459 and Lys1460 to Ala almost abrogated cell surface adhesion. Furthermore, when acidic residues of the homologous proteinase PAPP-A2 (Asp1547, Glu1555 and Glu1567) were introduced into the corresponding positions in the sequence of PAPP-A, located in each of the three basic clusters of CCP3, binding to heparin was strongly impaired and cell surface binding was abrogated. This explains, at least in part, why PAPP-A2 lacks the ability of cell surface adhesion, and further emphasizes the role of the basic clusters defined in PAPP-A.
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Affiliation(s)
- Kathrin Weyer
- Department of Molecular Biology, Science Park, University of Aarhus, Gustav Wieds Vej 10C, DK-8000 Aarhus C, Denmark
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Doss-Pepe E, Deprez P, Silva T, Inestrosa NC, Kirkpatrick A, Ramshaw JAM, Brodsky B. Stepwise construction of triple-helical heparin binding sites using peptide models. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2004; 1698:187-95. [PMID: 15134651 DOI: 10.1016/j.bbapap.2003.11.034] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2003] [Revised: 10/23/2003] [Accepted: 11/20/2003] [Indexed: 11/26/2022]
Abstract
The specific localization of the asymmetric form of acetylcholinesterase (AChE) in neuromuscular junctions results from the interaction of its collagen-like tail with heparan sulfate proteoglycans in the synaptic basal lamina. This interaction involves two heparin binding consensus sequences of the form XBBXB, where B is a basic residue, located in the triple-helical collagen tail: GRKGR for the N-terminal site and GKRGK for the C-terminal site. To explore the basis of the higher heparin affinity seen for the C-terminal site vs. the N-terminal site, two homologous series of (Gly-Xaa-Yaa)(8) peptides were constructed to model these triple-helical binding sites. Individual tripeptide units from each heparin binding site were introduced in a stepwise fashion into a Gly-Pro-Hyp framework, until the consensus sequence and its surrounding triplets were recreated. As each additional triplet from the binding site is inserted to replace a host Gly-Pro-Hyp triplet, the triple-helix stability decreases, and the drop in thermal stability is close to that expected if each Gly-X-Y triplet contributed independently to global stability. CD spectroscopy and calorimetry show the stability of these AChE model peptides is increased by addition of heparin, confirming binding to heparin, and the lack of significant enthalpy change indicates the binding is largely electrostatic in nature. Displacement assays measure the strength of the peptide-heparin interaction, and indicate an inverse correlation between the peptide ability to bind heparin and its thermal stability. The model peptides for the C-terminal binding site show a greater heparin affinity than the peptide models for the N-terminal binding site only when residues surrounding the consensus sequence are included.
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Affiliation(s)
- Ellen Doss-Pepe
- Department of Biochemistry, UMDNJ-Robert Wood Johnson Medical School, 675 Hoes Lane, Piscataway, NJ 08854, USA
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25
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Deprez P, Inestrosa NC, Krejci E. Two different heparin-binding domains in the triple-helical domain of ColQ, the collagen tail subunit of synaptic acetylcholinesterase. J Biol Chem 2003; 278:23233-42. [PMID: 12684510 DOI: 10.1074/jbc.m301384200] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
ColQ, the collagen tail subunit of asymmetric acetylcholinesterase, is responsible for anchoring the enzyme at the vertebrate synaptic basal lamina by interacting with heparan sulfate proteoglycans. To get insights about this function, the interaction of ColQ with heparin was analyzed. For this, heparin affinity chromatography of the complete oligomeric enzyme carrying different mutations in ColQ was performed. Results demonstrate that only the two predicted heparin-binding domains present in the collagen domain of ColQ are responsible for heparin interaction. Despite their similarity in basic charge distribution, each heparin-binding domain had different affinity for heparin. This difference is not solely determined by the number or nature of the basic residues conforming each site, but rather depends critically on local structural features of the triple helix, which can be influenced even by distant regions within ColQ. Thus, ColQ possesses two heparin-binding domains with different properties that may have non-redundant functions. We hypothesize that these binding sites coordinate acetylcholinesterase positioning within the organized architecture of the neuromuscular junction basal lamina.
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Affiliation(s)
- Paola Deprez
- Centro de Regulación Celular y Patología Dr Joaquín V Luco, Instituto Milenio de Biología Fundamental y Aplicada, Facultad de Ciencias Biológicas, P Universidad Católica de Chile.
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26
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Moschcovich L, Bernocco S, Font B, Rivkin H, Eichenberger D, Chejanovsky N, Hulmes DJ, Kessler E. Folding and activity of recombinant human procollagen C-proteinase enhancer. ACTA ACUST UNITED AC 2001; 268:2991-6. [PMID: 11358517 DOI: 10.1046/j.1432-1327.2001.02189.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Recombinant human procollagen C-proteinase enhancer (rPCPE) was expressed using a baculovirus system and purified to homogeneity using a three-step procedure including heparin affinity chromatography. Heparin binding was dependent on the C-terminal netrin-like domain. The recombinant protein was found to be active, increasing the activity of procollagen C-proteinase/bone morphogenetic protein-1 on type I procollagen in a manner comparable to the native protein. Enhancing activity was dependent on intact disulfide bonding within the protein. By circular dichroism, the observed secondary structure of rPCPE was consistent with the known three-dimensional structures of proteins containing homologous domains.
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Affiliation(s)
- L Moschcovich
- Goldschleger Eye Research Institute, Tel Aviv University Sackler Faculty of Medicine, Sheba Medical Center, Tel Hashomer, Israel
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Doss-Pepe E, Deprez P, Inestrosa NC, Brodsky B. Interaction of collagen-like peptide models of asymmetric acetylcholinesterase with glycosaminoglycans: spectroscopic studies of conformational changes and stability. Biochemistry 2000; 39:14884-92. [PMID: 11101304 DOI: 10.1021/bi001108u] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The effect of heparin on the conformation and stability of triple-helical peptide models of the collagen tail of asymmetric acetylcholinesterase expands our understanding of heparin interactions with proteins and presents an opportunity for clarifying the nature of binding of ligands to collagen triple-helix domains. Within the collagen tail of AChE, there are two consensus sequences for heparin binding of the form BBXB, surrounded by additional basic residues. Circular dichroism studies were used to determine the effect of the addition of increasing concentrations of heparin on triple-helical peptide models for the heparin binding domains, including peptides in which the basic residues within and surrounding the consensus sequence were replaced by alanine residues. The addition of heparin caused an increased triple-helix content with saturation properties for the peptide modeling the C-terminal site, while precipitation, with no increased helix content resulted from heparin addition to the peptide modeling the N-terminal site. The results suggest that the two binding sites with a similar triple-helical conformation have distinctive ways of interacting with heparin, which must relate to small differences in the consensus sequence (GRKGR vs GKRGK) and in the surrounding basic residues. Addition of heparin increased the thermal stability of all peptides containing the consensus sequence. Heparan sulfate produced conformational and stabilization effects similar to those of heparin, while chondroitin sulfate led to a cloudy solution, loss of circular dichroism signal, and a smaller increase in thermal stability. Thus, specificity in both the sequence of the triple helix and the type of glycosaminoglycan is required for this interaction.
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Affiliation(s)
- E Doss-Pepe
- Department of Biochemistry, UMDNJ-Robert Wood Johnson Medical School, Piscataway, New Jersey 08854, USA
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