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Truong AT, Lee SJ, Hamada K, Kiyomi A, Guo H, Yamada Y, Kikkawa Y, Okamoto CT, Nomizu M, MacKay JA. Synergy between Laminin-Derived Elastin-like Polypeptides (LELPs) Optimizes Cell Spreading. Biomacromolecules 2024. [PMID: 38814168 DOI: 10.1021/acs.biomac.4c00144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
A major component of the extracellular matrix (ECM), laminins, modulates cells via diverse receptors. Their fragments have emerging utility as components of "ECM-mimetics" optimized to promote cell-based therapies. Recently, we reported that a bioactive laminin peptide known as A99 enhanced cell binding and spreading via fusion to an elastin-like polypeptide (ELP). The ELP "handle" serves as a rapid, noncovalent strategy to concentrate bioactive peptide mixtures onto a surface. We now report that this strategy can be further generalized across an expanded panel of additional laminin-derived elastin-like polypeptides (LELPs). A99 (AGTFALRGDNPQG), A2G80 (VQLRNGFPYFSY), AG73 (RKRLQVQLSIRT), and EF1m (LQLQEGRLHFMFD) all promote cell spreading while showing morphologically distinct F-actin formation. Equimolar mixtures of A99:A2G80-LELPs have synergistic effects on adhesion and spreading. Finally, three of these ECM-mimetics promote the neurite outgrowth of PC-12 cells. The evidence presented here demonstrates the potential of ELPs to deposit ECM-mimetics with applications in regenerative medicine, cell therapy, and tissue engineering.
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Affiliation(s)
- Anh T Truong
- Department of Pharmacology and Pharmaceutical Sciences, Alfred E. Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, California 90089, United States
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan
| | - Shin-Jae Lee
- Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, California 90089, United States
| | - Keisuke Hamada
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan
| | - Anna Kiyomi
- Department of Drug Safety and Risk Management, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan
| | - Hao Guo
- Department of Pharmacology and Pharmaceutical Sciences, Alfred E. Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, California 90089, United States
| | - Yuji Yamada
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan
| | - Yamato Kikkawa
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan
| | - Curtis T Okamoto
- Department of Pharmacology and Pharmaceutical Sciences, Alfred E. Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, California 90089, United States
| | - Motoyoshi Nomizu
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan
| | - J Andrew MacKay
- Department of Pharmacology and Pharmaceutical Sciences, Alfred E. Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, California 90089, United States
- Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, California 90089, United States
- Department of Ophthalmology, Keck School of Medicine, University of Southern California, Los Angeles, California 90033, United States
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2
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Yamada Y. Characterization of Novel Cell-Adhesive Peptides for Biomaterial Development. Biol Pharm Bull 2024; 47:1072-1078. [PMID: 38825460 DOI: 10.1248/bpb.b24-00030] [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] [Indexed: 06/04/2024]
Abstract
In previous studies, my group developed cell-adhesive peptide-polysaccharide complexes as biomaterials for tissue engineering. Having a wide variety of cell-adhesive peptides is important as the biological functions of peptide-polysaccharide complexes are highly dependent on the biological activity of peptides. This paper reviews the biological activities of two types of recently characterized cell-adhesive peptides. The first is peptides rich in basic amino acids originating from octaarginine. We analyzed the relationships between the amino acid composition of basic peptides and cell adhesion, elongation, and proliferation and identified the most suitable peptide for cell culture. The second was arginine-glycine-aspartic acid (RGD)-containing peptides that promote the adhesion of induced pluripotent stem cells (iPSCs). We identified the RGD-surrounding sequences necessary for iPSC adhesion, clarified the underlying mechanism, and improved cell adhesion by modifying the structure-activity relationships. The novel cell-adhesive peptides identified in our previous studies may aid in the development of novel peptide-based biomaterials.
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Affiliation(s)
- Yuji Yamada
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences
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3
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Liu S, Zhi J, Chen Y, Song Z, Wang L, Tang C, Li S, Lai X, Xu N, Liu T. Biomimetic modification on the microporous surface of cardiovascular materials to accelerate endothelialization and regulate intimal regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2022; 135:112666. [DOI: 10.1016/j.msec.2022.112666] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 01/05/2022] [Accepted: 01/14/2022] [Indexed: 10/19/2022]
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4
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Hayashi H, Horinokita I, Yamada Y, Hamada K, Takagi N, Nomizu M. Effects of laminin-111 peptide coatings on rat neural stem/progenitor cell culture. Exp Cell Res 2020; 400:112440. [PMID: 33359470 DOI: 10.1016/j.yexcr.2020.112440] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 11/26/2020] [Accepted: 12/12/2020] [Indexed: 10/22/2022]
Abstract
Neurons require adhesive scaffolds for their growth and differentiation. Laminins are a major cell adhesive component of basement membranes and have various biological activities in the peripheral and central nervous systems. Here, we evaluated the biological activities of 5 peptides derived from laminin-111 as a scaffold for mouse neuroblastoma Neuro2a cells and rat neural stem/progenitor cells (NPCs). The 5 peptides showed Neuro2a cell attachment activity similar to that of poly-d-lysine. However, when NPCs were cultured on the peptides, 2 syndecan-binding peptides, AG73 (RKRLQVQLSIRT, mouse laminin α1 chain 2719-2730) and C16 (KAFDITYVRLKF, laminin γ1 chain 139-150), demonstrated significantly higher cell attachment and neurite extension activities than other peptides including integrin-binding ones. Long-term cell culture experiments showed that both AG73 and C16 supported the growth of neurons and astrocytes that had differentiated from NPCs. Furthermore, C16 markedly promoted the expression of neuronal markers such as synaptosomal-associated protein-25 and syntaxin 1A. These results indicate that AG73 and C16 are useful for NPC cultures and that C16 can be applied to specialized research on synapses in differentiated neurons. These peptides have the potential for use as valuable biomaterials for NPC research.
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Affiliation(s)
- Hideki Hayashi
- Department of Applied Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Tokyo, Hachioji, 192-0392, Japan.
| | - Ichiro Horinokita
- Department of Applied Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Tokyo, Hachioji, 192-0392, Japan
| | - Yuji Yamada
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Tokyo, Hachioji, 192-0392, Japan
| | - Keisuke Hamada
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Tokyo, Hachioji, 192-0392, Japan
| | - Norio Takagi
- Department of Applied Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Tokyo, Hachioji, 192-0392, Japan
| | - Motoyoshi Nomizu
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Tokyo, Hachioji, 192-0392, Japan
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5
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Jia J, Jeon EJ, Li M, Richards DJ, Lee S, Jung Y, Barrs RW, Coyle R, Li X, Chou JC, Yost MJ, Gerecht S, Cho SW, Mei Y. Evolutionarily conserved sequence motif analysis guides development of chemically defined hydrogels for therapeutic vascularization. SCIENCE ADVANCES 2020; 6:eaaz5894. [PMID: 32923589 PMCID: PMC7455498 DOI: 10.1126/sciadv.aaz5894] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 04/10/2020] [Indexed: 05/04/2023]
Abstract
Biologically active ligands (e.g., RGDS from fibronectin) play critical roles in the development of chemically defined biomaterials. However, recent decades have shown only limited progress in discovering novel extracellular matrix-protein-derived ligands for translational applications. Through motif analysis of evolutionarily conserved RGD-containing regions in laminin (LM) and peptide-functionalized hydrogel microarray screening, we identified a peptide (a1) that showed superior supports for endothelial cell (EC) functions. Mechanistic studies attributed the results to the capacity of a1 engaging both LM- and Fn-binding integrins. RNA sequencing of ECs in a1-functionalized hydrogels showed ~60% similarities with Matrigel in "vasculature development" gene ontology terms. Vasculogenesis assays revealed the capacity of a1-formulated hydrogels to improve EC network formation. Injectable alginates functionalized with a1 and MMPQK (a vascular endothelial growth factor-mimetic peptide with a matrix metalloproteinase-degradable linker) increased blood perfusion and functional recovery over decellularized extracellular matrix and (RGDS + MMPQK)-functionalized hydrogels in an ischemic hindlimb model, illustrating the power of this approach.
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Affiliation(s)
- Jia Jia
- Bioengineering Department, Clemson University, Clemson, SC, USA
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, SC, USA
| | - Eun Je Jeon
- Department of Biotechnology, Yonsei University, Seoul, Republic of Korea
- Department of Biomaterials Science and Engineering, Yonsei University, Seoul, Republic of Korea
| | - Mei Li
- Bioengineering Department, Clemson University, Clemson, SC, USA
- Department of Cardiology, Medical University of South Carolina, Charleston, SC, USA
| | - Dylan J. Richards
- Bioengineering Department, Clemson University, Clemson, SC, USA
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, SC, USA
| | - Soojin Lee
- Program in Nanoscience and Technology, Graduate School of Convergence Science and Technology, Seoul National University, Seoul, Republic of Korea
- Biomaterials Research Center, Korea Institute of Science and Technology, Seoul, Republic of Korea
| | - Youngmee Jung
- Biomaterials Research Center, Korea Institute of Science and Technology, Seoul, Republic of Korea
- Division of Bio-Medical Science & Technology, KIST School, Korea University of Science and Technology, Seoul, Republic of Korea
| | - Ryan W. Barrs
- Bioengineering Department, Clemson University, Clemson, SC, USA
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, SC, USA
| | - Robert Coyle
- Bioengineering Department, Clemson University, Clemson, SC, USA
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, SC, USA
| | - Xiaoyang Li
- Department of Drug Discovery and Biomedical Sciences, College of Pharmacy, Medical University of South Carolina, Charleston, SC, USA
- Ocean University of China, School of Medicine and Pharmacy, Qingdao, Shandong, China
| | - James C. Chou
- Department of Drug Discovery and Biomedical Sciences, College of Pharmacy, Medical University of South Carolina, Charleston, SC, USA
| | - Michael J. Yost
- Department of Surgery, College of Medicine, Medical University of South Carolina, Charleston, SC, USA
| | - Sharon Gerecht
- Department of Chemical and Biomolecular Engineering, The Institute for NanoBioTechnology, and Johns Hopkins Physical Sciences–Oncology Center, The Johns Hopkins University, Baltimore, MD, USA
| | - Seung-Woo Cho
- Department of Biotechnology, Yonsei University, Seoul, Republic of Korea
- Center for Nanomedicine, Institute for Basic Science (IBS), Seoul, Republic of Korea
- Graduate Program of Nano Biomedical Engineering (NanoBME), Advanced Science Institute, Yonsei University, Seoul, Republic of Korea
| | - Ying Mei
- Bioengineering Department, Clemson University, Clemson, SC, USA
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, SC, USA
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6
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Truong AT, Hamada K, Yamada Y, Guo H, Kikkawa Y, Okamoto CT, MacKay JA, Nomizu M. Evaluation of extracellular matrix mimetic laminin bioactive peptide and elastin‐like polypeptide. FASEB J 2020; 34:6729-6740. [DOI: 10.1096/fj.201902794r] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 02/19/2020] [Accepted: 03/14/2020] [Indexed: 11/11/2022]
Affiliation(s)
- Anh Tan Truong
- Department of Pharmacology and Pharmaceutical Sciences School of Pharmacy University of Southern California Los Angeles CA USA
- Department of Clinical Biochemistry School of Pharmacy Tokyo University of Pharmacy and Life Sciences Hachioji Japan
| | - Keisuke Hamada
- Department of Clinical Biochemistry School of Pharmacy Tokyo University of Pharmacy and Life Sciences Hachioji Japan
| | - Yuji Yamada
- Department of Clinical Biochemistry School of Pharmacy Tokyo University of Pharmacy and Life Sciences Hachioji Japan
| | - Hao Guo
- Department of Pharmacology and Pharmaceutical Sciences School of Pharmacy University of Southern California Los Angeles CA USA
| | - Yamato Kikkawa
- Department of Clinical Biochemistry School of Pharmacy Tokyo University of Pharmacy and Life Sciences Hachioji Japan
| | - Curtis T. Okamoto
- Department of Pharmacology and Pharmaceutical Sciences School of Pharmacy University of Southern California Los Angeles CA USA
| | - J. Andrew MacKay
- Department of Pharmacology and Pharmaceutical Sciences School of Pharmacy University of Southern California Los Angeles CA USA
- Department of Biomedical Engineering University of Southern California Los Angeles CA USA
- Department of Ophthalmology University of Southern California Los Angeles CA USA
| | - Motoyoshi Nomizu
- Department of Clinical Biochemistry School of Pharmacy Tokyo University of Pharmacy and Life Sciences Hachioji Japan
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7
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Kumai J, Yamada Y, Hamada K, Katagiri F, Hozumi K, Kikkawa Y, Nomizu M. Identification of active sequences in human laminin α5 G domain. J Pept Sci 2019; 25:e3218. [PMID: 31755207 DOI: 10.1002/psc.3218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 07/31/2019] [Accepted: 08/30/2019] [Indexed: 11/06/2022]
Abstract
Human laminin-511 (α5β1γ1) and its truncated protein, laminin-511 E8 fragment, bind to integrin α6β1 and have been widely used for embryonic stem cell and induced pluripotent stem cell culture under feeder-free conditions. In this study, we focused on human laminin α5 chain G domain, which is thought to be critical for the biological functions of laminin-511, and screened its biologically active sequences using a synthetic peptide library. We synthesized 115 peptides (hA5G1-hA5G115) covering the entire laminin α5 chain G domain and evaluated cell attachment activity using both the peptide-coated plate and peptide-chitosan matrix (peptide-ChtM) assays. Seventeen peptides demonstrated cell attachment activity in the assays. Both hA5G18 and hA5G26-coated plates and hA5G74-ChtMs promoted integrin β1-mediated cell attachment. These findings are useful for the study of molecular mechanisms of laminin-511, and the active peptides have a potential for use as a molecular probe for cell adhesion receptors.
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Affiliation(s)
- Jun Kumai
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Japan
| | - Yuji Yamada
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Japan
| | - Keisuke Hamada
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Japan
| | - Fumihiko Katagiri
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Japan
| | - Kentaro Hozumi
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Japan
| | - Yamato Kikkawa
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Japan
| | - Motoyoshi Nomizu
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Japan
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8
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Characterization of dystroglycan binding in adhesion of human induced pluripotent stem cells to laminin-511 E8 fragment. Sci Rep 2019; 9:13037. [PMID: 31506597 PMCID: PMC6737067 DOI: 10.1038/s41598-019-49669-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 08/29/2019] [Indexed: 12/16/2022] Open
Abstract
Human induced pluripotent stem cells (hiPSCs) grow indefinitely in culture and have the potential to regenerate various tissues. In the development of cell culture systems, a fragment of laminin-511 (LM511-E8) was found to improve the proliferation of stem cells. The adhesion of undifferentiated cells to LM511-E8 is mainly mediated through integrin α6β1. However, the involvement of non-integrin receptors remains unknown in stem cell culture using LM511-E8. Here, we show that dystroglycan (DG) is strongly expressed in hiPSCs. The fully glycosylated DG is functionally active for laminin binding, and although it has been suggested that LM511-E8 lacks DG binding sites, the fragment does weakly bind to DG. We further identified the DG binding sequence in LM511-E8, using synthetic peptides, of which, hE8A5-20 (human laminin α5 2688–2699: KTLPQLLAKLSI) derived from the laminin coiled-coil domain, exhibited DG binding affinity and cell adhesion activity. Deletion and mutation studies show that LLAKLSI is the active core sequence of hE8A5-20, and that, K2696 is a critical amino acid for DG binding. We further demonstrated that hiPSCs adhere to hE8A5-20-conjugated chitosan matrices. The amino acid sequence of DG binding peptides would be useful to design substrata for culture system of undifferentiated and differentiated stem cells.
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9
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Caires-Dos-Santos L, da Silva SV, Smuczek B, de Siqueira AS, Cruz KSP, Barbuto JAM, Augusto TM, Freitas VM, Carvalho HF, Jaeger RG. Laminin-derived peptide C16 regulates Tks expression and reactive oxygen species generation in human prostate cancer cells. J Cell Physiol 2019; 235:587-598. [PMID: 31254281 DOI: 10.1002/jcp.28997] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 06/01/2019] [Accepted: 06/04/2019] [Indexed: 01/05/2023]
Abstract
Laminin peptides influence cancer biology. We investigated the role of a laminin-derived peptide C16 regulating invadopodia molecules in human prostate cancer cells (DU145). C16 augmented invadopodia activity of DU145 cells, and stimulated expression Tks4, Tks5, cortactin, and membrane-type matrix metalloproteinase 1. Reactive oxygen species generation is also related to invadopodia formation. This prompted us to address whether C16 would induce reactive oxygen species generation in DU145 cells. Quantitative fluorescence and flow cytometry showed that the peptide C16 increased reactive oxygen species in DU145 cells. Furthermore, significant colocalization between Tks5 and reactive oxygen species was observed in C16-treated cells. Results suggested that the peptide C16 increased Tks5 and reactive oxygen species in prostate cancer cells. The role of C16 increasing Tks and reactive oxygen species are novel findings on invadopodia activity.
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Affiliation(s)
- Livia Caires-Dos-Santos
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Suély V da Silva
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | - Basilio Smuczek
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil.,Department of Biology, UNICENTRO State University, Guarapuava, PR, Brazil
| | - Adriane S de Siqueira
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil.,School of Dentistry, Positivo University, Curitiba, PR, Brazil
| | - Karen S P Cruz
- Department of Immunology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, SP, Brazil.,Cell Biology Laboratory, Institute of Health and Biological Sciences, Federal University of Alagoas, Maceio, AL, Brazil.,Faculty of Nutrition, Federal University of Alagoas, Maceio, AL, Brazil
| | - José Alexandre M Barbuto
- Department of Immunology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Taize M Augusto
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas, Campinas, SP, Brazil.,Department of Morphology and Basic Pathology, School of Medicine of Jundiai, Jundiai, SP, Brazil
| | - Vanessa M Freitas
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil
| | | | - Ruy G Jaeger
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil
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10
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Galliou PA, Verrou KM, Koliakos G. Phosphorylation mapping of laminin α1-chain: Kinases in association with active sites. Comput Biol Chem 2019; 80:480-497. [PMID: 31174160 DOI: 10.1016/j.compbiolchem.2019.04.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Accepted: 04/25/2019] [Indexed: 11/25/2022]
Abstract
Laminin-111 is a trimeric glycoprotein of the extracellular matrix (ECM) that holds a significant role in cell adhesion, migration and differentiation. Laminin-111 is the most studied laminin isoform, composed of three chains; α1, β1 and γ1. Phosphorylation is the most common eukaryotic post - translational modification and has regulatory effect on protein function. Using bioinformatic tools we computationally predicted all the possible phosphorylation sites on human laminin α1-chain sequence (LAMA1) according to kinases binding motifs. Thus, we predicted, for the first time, the possibly responsible kinases for fifteen of the nineteen already published experimentally observed phosphorylated residues in LAMA1. Searching the literature extensively, we recorded all the known functional sites (active sites) in LAMA1. We combined the experimentally observed and predicted phosphorylated residues as well as the active sites in LAMA1, generating an analytic phosphorylation map of human laminin α1-chain, which is useful for further analysis. Our results indicated fourteen kinases that might be important for the phosphorylation of human laminin α1-chain, out of which three kinases with reported ecto-phosphorylation activity (PKA, PKC and CKII) were suggested to have a more significant role. Six cancer associated-active sites were correlated with kinases, three out which were correlated with only the above ecto - kinases.
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Affiliation(s)
- Panagiota Angeliki Galliou
- Laboratory of Biological Chemistry, Medical School, Aristotle University of Thessaloniki, 54124, Greece..
| | - Kleio-Maria Verrou
- Laboratory of Biological Chemistry, Medical School, Aristotle University of Thessaloniki, 54124, Greece.; School of Medicine, University of Crete, 71500, Greece..
| | - George Koliakos
- Laboratory of Biological Chemistry, Medical School, Aristotle University of Thessaloniki, 54124, Greece..
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11
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Negishi Y, Nomizu M. Laminin-derived peptides: Applications in drug delivery systems for targeting. Pharmacol Ther 2019; 202:91-97. [PMID: 31158392 DOI: 10.1016/j.pharmthera.2019.05.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 05/29/2019] [Indexed: 12/29/2022]
Abstract
Recently, the development of drug delivery systems (DDSs) for clinical application of anticancer drugs and gene therapy has rapidly progressed. In particular, DDS carriers used for chemotherapy and gene therapy are required to selectively deliver drugs and genes to cancer cells. Both the carrier and the molecule must in combination be highly selective in most cases. Possible candidate targeting molecules are the laminins, major basement membrane proteins that interact with various cells through their multiple constituent active peptide sequences. Laminin-derived peptides bind to various cellular receptors and have been used for DDSs as a targeting moiety. Here, we review the progress in laminin-derived peptide-conjugated DDSs. Drug and gene carriers as well as ultrasound diagnostic contrast agents utilizing laminin-derived peptides for selective targeting are useful components of DDSs and play important roles in cancer and in the neovasculature.
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Affiliation(s)
- Yoichi Negishi
- Department of Drug Delivery and Molecular Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan
| | - Motoyoshi Nomizu
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan.
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12
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In Vitro Validation of Targeting and Comparison to Mathematical Modeling. Methods Mol Biol 2019. [PMID: 30051429 DOI: 10.1007/978-1-4939-8661-3_10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
Nanoparticle and other drug delivery platforms have demonstrated promising potential for the delivery of therapeutics or imaging agents in a specific and targeted manner. While a variety of drug delivery platforms have been applied to medicine, in vitro and in silico optimization and validation of these targeting constructs needs to be conducted to maximize in vivo delivery and efficacy. Here, we describe the mathematical and experimental models to predict and validate the transport of a peptide targeting construct through a mock tissue environment to specifically target tumor cells, relative to non-tumor cells. We provide methods to visualize and analyze fluorescence microscopy images, and also describe the methods for creating a finite element model (FEM) that validates important parameters of this experimental system. By comparing and contrasting mathematical modeling results with experimental results, important information can be imparted to the design and functionality of the targeting construct. This information will help to optimize construct design for future therapeutic delivery applications.
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13
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Sivaraman K, Shanthi C. Matrikines for therapeutic and biomedical applications. Life Sci 2018; 214:22-33. [PMID: 30449450 DOI: 10.1016/j.lfs.2018.10.056] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 10/24/2018] [Accepted: 10/25/2018] [Indexed: 12/25/2022]
Abstract
Matrikines, peptides originating from the fragmentation of extracellular matrix proteins are identified to play important role in both health and disease. They possess biological activities, much different from their parent protein. Identification of such bioactive cryptic regions in the extracellular matrix proteins has attracted the researchers all over the world in the recent decade. These bioactive peptides could find use in preparation of biomaterials and tissue engineering applications. Matrikines identified in major extracellular matrix (ECM) proteins like collagen, elastin, fibronectin, and laminin are being extensively studied for use in tissue engineering and regenerative medicine. They are identified to modulate cellular activity like cell growth, proliferation, migration and may induce apoptosis. RGD, a well-known peptide identified in fibronectin with cell adhesive property is being investigated in designing biomaterials. Collagen hexapeptide GFOGER was found to promote cell adhesion and differentiation. Laminin also possesses regions with strong cell adhesion property. Recently, cell-penetrating peptides from elastin are used as a targeted delivery system for therapeutic drugs. The continued search for cryptic sequences in the extracellular matrix proteins along with advanced peptide coupling chemistries would lead to biomaterials with improved surface properties. This review article outlines the peptides derived from extracellular matrix and some of the possible applications of these peptides in therapeutics and tissue engineering applications.
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Affiliation(s)
- K Sivaraman
- School of Biosciences and Technology, VIT, Vellore 632014, Tamilnadu, India
| | - C Shanthi
- School of Biosciences and Technology, VIT, Vellore 632014, Tamilnadu, India.
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14
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Biological activities of laminin-111-derived peptide-chitosan matrices in a primary culture of rat cortical neurons. Arch Biochem Biophys 2018; 648:53-59. [DOI: 10.1016/j.abb.2018.04.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 04/09/2018] [Accepted: 04/12/2018] [Indexed: 01/10/2023]
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15
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Tang J, Saito T. Laminin-1 acts as an adhesive for odontoblast-like cells and promotes their differentiation toward a hard tissue-forming phenotype. J Oral Sci 2018; 60:253-261. [PMID: 29657251 DOI: 10.2334/josnusd.17-0286] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
The present study was designed to investigate the effect of laminin-1 (LN-1 or LN-111) on an odontoblast-like cell line, MDPC-23. Wells of non-treated polystyrene plates were coated with various concentrations of LN-1 (0.1, 1, 10, and 100 µg/mL) and left to dry for 2 days. Water-coated surfaces were used as controls. MDPC-23 cell proliferation, differentiation and mineralization were evaluated in terms of the CCK-8 assay, ALP activity, real-time RT-PCR and Alizarin red staining. The data indicated that LN-1 promoted the proliferation of MDPC-23 cells in a concentration-dependent manner. Moreover, it enhanced ALP activity and expression of key odontogenic genes (DMP-1 and DSPP) upon addition of mineralization reagents, leading to significant promotion of calcification by the cells. These results demonstrate that LN-1 acts as an adhesive for odontoblast-like cells, allowing up-regulation of odontogenic genes and accelerating matrix mineralization. In the context of the present study, the optimal LN-1 coating concentration for MDPC-23 cells was suggested to be 100 µg/mL.
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Affiliation(s)
- Jia Tang
- Division of Biochemistry, Department of Oral Biology, School of Dentistry, Health Sciences University of Hokkaido
| | - Takashi Saito
- Division of Clinical Cariology and Endodontology, Department of Oral Rehabilitation, School of Dentistry, Health Sciences University of Hokkaido
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16
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Llacua LA, Hoek A, de Haan BJ, de Vos P. Collagen type VI interaction improves human islet survival in immunoisolating microcapsules for treatment of diabetes. Islets 2018; 10:60-68. [PMID: 29521546 PMCID: PMC5895175 DOI: 10.1080/19382014.2017.1420449] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 12/11/2017] [Accepted: 12/14/2017] [Indexed: 01/12/2023] Open
Abstract
Collagens are the most abundant fibrous protein in the human body and constitute the main structural element of the extracellular matrix. It provides mechanical and physiological support for cells. In the pancreas, collagen VI content is more than double that of collagen I or IV. It is a major component of the islet-exocrine interface and could be involved in islet-cell survival. To test the impact of collagen VI on human encapsulated pancreatic islets-cells, we tested the effects of exogenous collagen type VI on in vitro functional survival of alginate encapsulated human islet-cells. Concentrations tested ranged from 0.1 to 50 µg/ml. Islets in capsules without collagen type VI served as control. Islet-cell interaction with collagen type VI at concentrations of 0.1 and 10 µg/ml, promoted islet-cell viability (p<0.05). Although no improvement in glucose induced insulin secretion (GSIS) was observed, islets in capsules without incorporation of collagen type VI showed more dysfunction and oxygen consumption rates was improved by inclusion of collagen type VI. Our results demonstrate that incorporation of collagen type VI in immunoisolated human islets supports in vitro viability and survival of human pancreatic islets.
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Affiliation(s)
- L. Alberto Llacua
- Section of Immunoendocrinology, Department of Pathology and Medical Biology, University of Groningen, Groningen, The Netherlands
| | - Arjan Hoek
- Section of Immunoendocrinology, Department of Pathology and Medical Biology, University of Groningen, Groningen, The Netherlands
| | - Bart J. de Haan
- Section of Immunoendocrinology, Department of Pathology and Medical Biology, University of Groningen, Groningen, The Netherlands
| | - Paul de Vos
- Section of Immunoendocrinology, Department of Pathology and Medical Biology, University of Groningen, Groningen, The Netherlands
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17
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Smuczek B, Santos EDS, Siqueira AS, Pinheiro JJ, Freitas VM, Jaeger RG. The laminin-derived peptide C16 regulates GPNMB expression and function in breast cancer. Exp Cell Res 2017; 358:323-334. [DOI: 10.1016/j.yexcr.2017.07.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Revised: 07/02/2017] [Accepted: 07/04/2017] [Indexed: 11/27/2022]
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18
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Fujimori C, Kumai J, Nakamura K, Gu Y, Katagiri F, Hozumi K, Kikkawa Y, Nomizu M. Biological activity of peptide-conjugated polyion complex matrices consisting of alginate and chitosan. Biopolymers 2017; 108. [PMID: 27603160 DOI: 10.1002/bip.22983] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Revised: 08/20/2016] [Accepted: 08/29/2016] [Indexed: 11/09/2022]
Abstract
Peptide-conjugated polysaccharide matrices using bioactive laminin-derived peptides are useful biomaterials for tissue and cell engineering. Here, we demonstrate an easy handling preparation method for peptide-polysaccharide matrices using polyion complex with both alginate and chitosan. First, aldehyde-alginate was synthesized by oxidization of alginate using NaIO4 , and then, reacted with Cys-peptides. Next, the peptide-alginate solution was added to a chitosan-coated plate, and the peptide-polyion complex matrices (peptide-PCMs) were prepared. The peptide-PCMs using an integrin αvβ3-binding peptide (A99a: ALRGDN, mouse laminin α1 chain 1145-1150) and an integrin α2β1-binding peptide (EF1XmR: RLQLQEGRLHFXFD, X = Nle, mouse laminin α1 chain 2751-2763) showed strong cell attachment activity in a dose-dependent manner. When we examined the effect of various spacers on the biological activity of A99a-PCM, hydrophobic and long spacers enhanced the cell attachment activity. Further, the A99a-PCM with the spacers strongly promoted neurite outgrowth. The polyion complex method is an easy way to obtain insolubilized matrix and is widely applicable for various polysaccharides. The peptide-PCM is useful as a biomaterial for cell and tissue engineering.
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Affiliation(s)
- Chikara Fujimori
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo, 192-0392, Japan
| | - Jun Kumai
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo, 192-0392, Japan
| | - Kyotaro Nakamura
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo, 192-0392, Japan
| | - Yingzi Gu
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo, 192-0392, Japan
| | - Fumihiko Katagiri
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo, 192-0392, Japan
| | - Kentaro Hozumi
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo, 192-0392, Japan
| | - Yamato Kikkawa
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo, 192-0392, Japan
| | - Motoyoshi Nomizu
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo, 192-0392, Japan
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19
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Kikkawa Y, Sugawara Y, Harashima N, Fujii S, Ikari K, Kumai J, Katagiri F, Hozumi K, Nomizu M. Identification of laminin α5 short arm peptides active for endothelial cell attachment and tube formation. J Pept Sci 2017; 23:666-673. [PMID: 28220599 DOI: 10.1002/psc.2987] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2016] [Revised: 01/03/2017] [Accepted: 02/01/2017] [Indexed: 12/23/2022]
Abstract
Laminin-511, a major component of endothelial basement membrane, consists of α5, β1, and γ1 chains. The short arm region of the α5 chain is a structural feature of endothelial laminins. In this study, we identified active sequences for human umbilical vein endothelial cells (HUVECs) using recombinant proteins and synthetic peptides. The short arm of the α5 chain contains three globular domains [laminin N-terminal globular domain, laminin 4 domain a, and laminin 4 domain b (LN, L4a, and L4b)] and three rod-like elements [laminin epidermal growth factor-like domain a, b, and c (LEa, LEb, and LEc)]. The cell attachment assay using recombinant proteins showed that RGD-independent cell attachment sites were localized in the α5LN-LEa domain. Further, we synthesized 70 peptides covering the amino acid sequences of the α5LN-LEa domain. Of the 70 peptides, A5-16 (mouse laminin α5 230-243: LENGEIVVSLVNGR) potently exhibited endothelial cell attachment activity. An active sequence analysis using N-terminally and C-terminally truncated A5-16 peptides showed that the nine-amino acid sequence IVVSLVNGR was critical for the endothelial cell attachment activity. Cell adhesion to the peptides was dependent on both cations and heparan sulfate. Further, the A5-16 peptide inhibited the capillary-like tube formation of HUVECs with the cells forming small clumps with short tubes. The eight-amino acid sequence EIVVSLVN in the A5-16 peptide was critical to inhibit HUVEC tube formation. This amino acid sequence could be useful for grafts and thus modulate endothelial cell behavior for vascular surgery. Copyright © 2017 European Peptide Society and John Wiley & Sons, Ltd.
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Affiliation(s)
- Yamato Kikkawa
- Department of Clinical Biochemistry, Tokyo University of Pharmacy and Life Sciences, Tokyo, 192-0392, Japan
| | - Yumika Sugawara
- Department of Clinical Biochemistry, Tokyo University of Pharmacy and Life Sciences, Tokyo, 192-0392, Japan
| | - Nozomi Harashima
- Department of Clinical Biochemistry, Tokyo University of Pharmacy and Life Sciences, Tokyo, 192-0392, Japan
| | - Shogo Fujii
- Department of Clinical Biochemistry, Tokyo University of Pharmacy and Life Sciences, Tokyo, 192-0392, Japan
| | - Kazuki Ikari
- Department of Clinical Biochemistry, Tokyo University of Pharmacy and Life Sciences, Tokyo, 192-0392, Japan
| | - Jun Kumai
- Department of Clinical Biochemistry, Tokyo University of Pharmacy and Life Sciences, Tokyo, 192-0392, Japan
| | - Fumihiko Katagiri
- Department of Clinical Biochemistry, Tokyo University of Pharmacy and Life Sciences, Tokyo, 192-0392, Japan
| | - Kentaro Hozumi
- Department of Clinical Biochemistry, Tokyo University of Pharmacy and Life Sciences, Tokyo, 192-0392, Japan
| | - Motoyoshi Nomizu
- Department of Clinical Biochemistry, Tokyo University of Pharmacy and Life Sciences, Tokyo, 192-0392, Japan
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20
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Varun D, Srinivasan GR, Tsai YH, Kim HJ, Cutts J, Petty F, Merkley R, Stephanopoulos N, Dolezalova D, Marsala M, Brafman DA. A robust vitronectin-derived peptide for the scalable long-term expansion and neuronal differentiation of human pluripotent stem cell (hPSC)-derived neural progenitor cells (hNPCs). Acta Biomater 2017; 48:120-130. [PMID: 27989923 DOI: 10.1016/j.actbio.2016.10.037] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 10/03/2016] [Accepted: 10/26/2016] [Indexed: 12/22/2022]
Abstract
Despite therapeutic advances, neurodegenerative diseases and disorders remain some of the leading causes of mortality and morbidity in the United States. Therefore, cell-based therapies to replace lost or damaged neurons and supporting cells of the central nervous system (CNS) are of great therapeutic interest. To that end, human pluripotent stem cell (hPSC) derived neural progenitor cells (hNPCs) and their neuronal derivatives could provide the cellular 'raw material' needed for regenerative medicine therapies for a variety of CNS disorders. In addition, hNPCs derived from patient-specific hPSCs could be used to elucidate the underlying mechanisms of neurodegenerative diseases and identify potential drug candidates. However, the scientific and clinical application of hNPCs requires the development of robust, defined, and scalable substrates for their long-term expansion and neuronal differentiation. In this study, we rationally designed a vitronectin-derived peptide (VDP) that served as an adhesive growth substrate for the long-term expansion of several hNPC lines. Moreover, VDP-coated surfaces allowed for the directed neuronal differentiation of hNPC at levels similar to cells differentiated on traditional extracellular matrix protein-based substrates. Overall, the ability of VDP to support the long-term expansion and directed neuronal differentiation of hNPCs will significantly advance the future translational application of these cells in treating injuries, disorders, and diseases of the CNS.
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21
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Gjorevski N, Sachs N, Manfrin A, Giger S, Bragina ME, Ordóñez-Morán P, Clevers H, Lutolf MP. Designer matrices for intestinal stem cell and organoid culture. Nature 2016; 539:560-564. [PMID: 27851739 DOI: 10.1038/nature20168] [Citation(s) in RCA: 859] [Impact Index Per Article: 107.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Accepted: 10/18/2016] [Indexed: 12/30/2022]
Abstract
Epithelial organoids recapitulate multiple aspects of real organs, making them promising models of organ development, function and disease. However, the full potential of organoids in research and therapy has remained unrealized, owing to the poorly defined animal-derived matrices in which they are grown. Here we used modular synthetic hydrogel networks to define the key extracellular matrix (ECM) parameters that govern intestinal stem cell (ISC) expansion and organoid formation, and show that separate stages of the process require different mechanical environments and ECM components. In particular, fibronectin-based adhesion was sufficient for ISC survival and proliferation. High matrix stiffness significantly enhanced ISC expansion through a yes-associated protein 1 (YAP)-dependent mechanism. ISC differentiation and organoid formation, on the other hand, required a soft matrix and laminin-based adhesion. We used these insights to build a fully defined culture system for the expansion of mouse and human ISCs. We also produced mechanically dynamic matrices that were initially optimal for ISC expansion and subsequently permissive to differentiation and intestinal organoid formation, thus creating well-defined alternatives to animal-derived matrices for the culture of mouse and human stem-cell-derived organoids. Our approach overcomes multiple limitations of current organoid cultures and greatly expands their applicability in basic and clinical research. The principles presented here can be extended to identify designer matrices that are optimal for long-term culture of other types of stem cells and organoids.
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Affiliation(s)
- Nikolce Gjorevski
- Laboratory of Stem Cell Bioengineering, Institute of Bioengineering, School of Life Sciences (SV) and School of Engineering (STI), Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Norman Sachs
- Hubrecht Institute and University Medical Center Utrecht, Uppsalalaan 8, 3584CT Utrecht, The Netherlands
| | - Andrea Manfrin
- Laboratory of Stem Cell Bioengineering, Institute of Bioengineering, School of Life Sciences (SV) and School of Engineering (STI), Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Sonja Giger
- Laboratory of Stem Cell Bioengineering, Institute of Bioengineering, School of Life Sciences (SV) and School of Engineering (STI), Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Maiia E Bragina
- Laboratory of Stem Cell Bioengineering, Institute of Bioengineering, School of Life Sciences (SV) and School of Engineering (STI), Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Paloma Ordóñez-Morán
- Swiss Institute for Experimental Cancer Research (ISREC), EPFL, Lausanne, Switzerland
| | - Hans Clevers
- Hubrecht Institute and University Medical Center Utrecht, Uppsalalaan 8, 3584CT Utrecht, The Netherlands
| | - Matthias P Lutolf
- Laboratory of Stem Cell Bioengineering, Institute of Bioengineering, School of Life Sciences (SV) and School of Engineering (STI), Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.,Institute of Chemical Sciences and Engineering, School of Basic Science, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
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22
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Nikitin S, Palmer D, Meldal M, Diness F. Comparative studies of adhesion peptides based on l- or d-amino acids. J Pept Sci 2016; 22:642-646. [PMID: 27580849 DOI: 10.1002/psc.2913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 08/03/2016] [Accepted: 08/04/2016] [Indexed: 11/06/2022]
Abstract
Detailed studies comparing solid-supported l- or d-amino acid adhesion peptides based on the sequence KLHRIRA were performed. Stability towards proteases and levels of cellular adhesion to the otherwise inert surface of PEGA resin were compared by using fluorescently labelled peptides. A clear difference in the peptide stability towards cleavage by subtilisin, trypsin, or papain was observed. However, all of the on-bead peptides provided an optimal surface for cell adhesion and proliferation. In long-term experiments, these properties were still found to be similar on the resins modified either with l- or with d-amino acids and unaffected by the nature of their fluorescence labelling at either terminus. These results support that the more accessible l-amino acids can be utilized for cell adhesion experiments and confirm the nonspecific interaction mechanism of cell binding to these peptides on the bead surface. Copyright © 2016 European Peptide Society and John Wiley & Sons, Ltd.
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Affiliation(s)
- Sergey Nikitin
- Center for Evolutionary Chemical Biology, University of Copenhagen, Copenhagen, Denmark.,Novosibirsk State University, 2 Pirogova St., Novosibirsk, 630090, Russia
| | - Daniel Palmer
- Center for Evolutionary Chemical Biology, University of Copenhagen, Copenhagen, Denmark
| | - Morten Meldal
- Center for Evolutionary Chemical Biology, University of Copenhagen, Copenhagen, Denmark.
| | - Frederik Diness
- Center for Evolutionary Chemical Biology, University of Copenhagen, Copenhagen, Denmark.
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23
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Cui FZ, Tian WM, Fan YW, Hou SP, Xu QY, Lee IS. Cerebrum Repair with PHPMA Hydrogel Immobilized with Neurite-Promoting Peptides in Traumatic Brain Injury of Adult Rat Model. J BIOACT COMPAT POL 2016. [DOI: 10.1177/0883911503040470] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A poly[N-(2-hydroxypropyl) methacrylamide] (PHPMA) hydrogel immobilized with the neurite-promoting peptide sequence of xIKVAVx was synthesized and its structure was characterized. The PHPMA-IKVAV hydrogel displayed an interconnected porous structure. The ability of the hydrogel to support axonal outgrowth in the injured adult rats cerebrum cavity and to promote tissue regeneration was evaluated. After implantation for 4, 6, 12 and 18 weeks, the brain sections were processed for histological staining. The observations of the sections showed that the polymer hydrogel provided a structural, three-dimensional continuity across the defect and favoured reorganization of local wound-repair cells, angiogenesis and axonal growth into the hydrogel scaffold. Compared with the unmodified PHPMA hydrogel, the PHPMA-IKVAV hydrogel displayed greater ability to repair tissue defects in the cerebrum nervous system.
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Affiliation(s)
| | | | - Y. W. Fan
- Biomaterials Laboratory Department of Materials Science & Engineering Tsinghua University Beijing, 100084, China
| | | | - Q. Y. Xu
- Beijing Institute of Neuroscience Capital University of Medical Sciences Beijing, 100054, China
| | - I.-S. Lee
- Atomic-scale Surface Science Research Center, Yonsei University, Seoul, 120-749 Korea
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24
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Effect of spacer length and type on the biological activity of peptide-polysaccharide matrices. Biopolymers 2016; 106:512-20. [DOI: 10.1002/bip.22785] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2015] [Revised: 10/30/2015] [Accepted: 11/02/2015] [Indexed: 12/26/2022]
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25
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Negishi Y, Tsunoda Y, Hamano N, Omata D, Endo-Takahashi Y, Suzuki R, Maruyama K, Nomizu M, Aramaki Y. Ultrasound-mediated gene delivery systems by AG73-modified Bubble liposomes. Biopolymers 2016; 100:402-7. [PMID: 23532952 DOI: 10.1002/bip.22246] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Revised: 03/11/2013] [Accepted: 03/17/2013] [Indexed: 11/06/2022]
Abstract
Targeted gene delivery to neovascular vessels in tumors is considered a promising strategy for cancer therapy. We previously reported that "Bubble liposomes" (BLs), which are ultrasound (US) imaging gas-encapsulating liposomes, were suitable for US imaging and gene delivery. When BLs are exposed to US, the bubble is destroyed, creating a jet stream by cavitation, and resulting in the instantaneous ejection of extracellular plasmid DNA (pDNA) or other nucleic acids into the cytosol. We developed AG73 peptide-modified Bubble liposomes (AG73-BL) as a targeted US contrast agent, which was designed to attach to neovascular tumor vessels and to allow specific US detection of angiogenesis (Negishi et al., Biomaterials 2013, 34, 501-507). In this study, to evaluate the effectiveness of AG73-BL as a gene delivery tool for neovascular vessels, we examined the gene transfection efficiency of AG73-BL with US exposure in primary human endothelial cells (HUVEC). The transfection efficiency was significantly enhanced if the AG73-BL attached to the HUVEC was exposed to US compared to the BL-modified with no peptide or scrambled peptide. In addition, the cell viability was greater than 80% after transfection with AG73-BL. These results suggested that after the destruction of the AG73-BL with US exposure, a cavitation could be effectively induced by the US exposure against AG73-BL binding to the cell surface of the HUVEC, and the subsequent gene delivery into cells could be enhanced. Thus, AG73-BL may be useful for gene delivery as well as for US imaging of neovascular vessels.
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Affiliation(s)
- Yoichi Negishi
- Department of Drug Delivery and Molecular Biopharmaceutics, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo, Japan
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26
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de Vega S, Hozumi K, Suzuki N, Nonaka R, Seo E, Takeda A, Ikeuchi T, Nomizu M, Yamada Y, Arikawa-Hirasawa E. Identification of peptides derived from the C-terminal domain of fibulin-7 active for endothelial cell adhesion and tube formation disruption. Biopolymers 2016; 106:184-195. [PMID: 26491858 DOI: 10.1002/bip.22754] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2015] [Revised: 10/01/2015] [Accepted: 10/10/2015] [Indexed: 12/21/2022]
Abstract
Despite the research done on pathological angiogenesis, there is still a need for the development of new therapies against angiogenesis-related diseases. Fibulin-7 (Fbln7) is a member of the extracellular matrix fibulin protein family. The Fbln7 C-terminal fragment, Fbln7-C, binds to endothelial cells and inhibits their tube formation in culture. In this study, we screened 12 synthetic peptides, covering the fibulin-globular domain of Fbln7-C, to identify active sites for endothelial cell adhesion and in vitro antiangiogenic activity. Three peptides, fc10, fc11, and fc12, promoted Human Umbilical Vein Endothelial Cells (HUVECs) adhesion, and the morphology of HUVECs on fc10 was similar to that on Fbln7-C. EDTA and the anti-integrin β1 function-blocking antibody inhibited HUVECs adhesion to both fc10 and fc12, and heparin inhibited HUVECs adhesion to both fc11 and fc12. fc10 and fc11 inhibited HUVECs tube formation. Our results suggest that three peptides from Fbln7-C are biologically active for endothelial cell adhesion and disrupt the tube formation, suggesting a potential therapeutic use of these peptides for angiogenesis-related diseases. © 2015 Wiley Periodicals, Inc. Biopolymers (Pept Sci) 106: 184-195, 2016.
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Affiliation(s)
- Susana de Vega
- Research Institute for Diseases of Old Age, Juntendo University School of Medicine, Tokyo, 113-8421, Japan
| | - Kentaro Hozumi
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Tokyo, 192-0392, Japan
| | - Nobuharu Suzuki
- Department of Biochemistry and Biophysics, Graduate School of Health Care Sciences, Tokyo Medical and Dental University, Tokyo, 113-8510, Japan
| | - Risa Nonaka
- Research Institute for Diseases of Old Age, Juntendo University School of Medicine, Tokyo, 113-8421, Japan
| | - Eimi Seo
- Research Institute for Diseases of Old Age, Juntendo University School of Medicine, Tokyo, 113-8421, Japan
| | - Anna Takeda
- Research Institute for Diseases of Old Age, Juntendo University School of Medicine, Tokyo, 113-8421, Japan
| | - Tomoko Ikeuchi
- Laboratory of Cell and Developmental Biology, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD, 20814
| | - Motoyoshi Nomizu
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Tokyo, 192-0392, Japan
| | - Yoshihiko Yamada
- Laboratory of Cell and Developmental Biology, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD, 20814
| | - Eri Arikawa-Hirasawa
- Research Institute for Diseases of Old Age, Juntendo University School of Medicine, Tokyo, 113-8421, Japan
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27
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Yamada H, Mori S, Miyakawa T, Morikawa R, Katagiri F, Hozumi K, Kikkawa Y, Nomizu M, Takasu M. Structural Study of Cell Attachment Peptide Derived from Laminin by Molecular Dynamics Simulation. PLoS One 2016; 11:e0149474. [PMID: 26889829 PMCID: PMC4759364 DOI: 10.1371/journal.pone.0149474] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 01/31/2016] [Indexed: 12/04/2022] Open
Abstract
Peptides with cell attachment activity are beneficial component of biomaterials for tissue engineering. Conformational structure is one of the important factors for the biological activities. The EF1 peptide (DYATLQLQEGRLHFMFDLG) derived from laminin promotes cell spreading and cell attachment activity mediated by α2β1 integrin. Although the sequence of the EF2 peptide (DFATVQLRNGFPYFSYDLG) is homologous sequence to that of EF1, EF2 does not promote cell attachment activity. To determine whether there are structural differences between EF1 and EF2, we performed replica exchange molecular dynamics (REMD) simulations and conventional molecular dynamics (MD) simulations. We found that EF1 and EF2 had β-sheet structure as a secondary structure around the global minimum. However, EF2 had variety of structures around the global minimum compared with EF1 and has easily escaped from the bottom of free energy. The structural fluctuation of the EF1 is smaller than that of the EF2. The structural variation of EF2 is related to these differences in the structural fluctuation and the number of the hydrogen bonds (H-bonds). From the analysis of H-bonds in the β-sheet, the number of H-bonds in EF1 is larger than that in EF2 in the time scale of the conventional MD simulation, suggesting that the formation of H-bonds is related to the differences in the structural fluctuation between EF1 and EF2. From the analysis of other non-covalent interactions in the amino acid sequences of EF1 and EF2, EF1 has three pairs of residues with hydrophobic interaction, and EF2 has two pairs. These results indicate that several non-covalent interactions are important for structural stabilization. Consequently, the structure of EF1 is stabilized by H-bonds and pairs of hydrophobic amino acids in the terminals. Hence, we propose that non-covalent interactions around N-terminal and C-terminal of the peptides are crucial for maintaining the β-sheet structure of the peptides.
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Affiliation(s)
- Hironao Yamada
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432–1 Horinouchi, Hachiouji, Tokyo 192–0392, Japan
- * E-mail:
| | - Sakiko Mori
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432–1 Horinouchi, Hachiouji, Tokyo 192–0392, Japan
| | - Takeshi Miyakawa
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432–1 Horinouchi, Hachiouji, Tokyo 192–0392, Japan
| | - Ryota Morikawa
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432–1 Horinouchi, Hachiouji, Tokyo 192–0392, Japan
| | - Fumihiko Katagiri
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432–1 Horinouchi, Hachiouji, Tokyo 192–0392, Japan
| | - Kentaro Hozumi
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432–1 Horinouchi, Hachiouji, Tokyo 192–0392, Japan
| | - Yamato Kikkawa
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432–1 Horinouchi, Hachiouji, Tokyo 192–0392, Japan
| | - Motoyoshi Nomizu
- School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432–1 Horinouchi, Hachiouji, Tokyo 192–0392, Japan
| | - Masako Takasu
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, 1432–1 Horinouchi, Hachiouji, Tokyo 192–0392, Japan
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Hattori T, Nakashima K, Marutani T, Kiso Y, Nishi Y, Mukai H. Successful acquisition of a neutralizing monoclonal antibody against a novel neutrophil-activating peptide, mitocryptide-1. Biochem Biophys Res Commun 2015; 463:54-9. [PMID: 25986736 DOI: 10.1016/j.bbrc.2015.05.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Accepted: 05/07/2015] [Indexed: 10/23/2022]
Abstract
Mitocryptide-1 (MCT-1) is a novel neutrophil-activating peptide derived from mitochondrial cytochrome c oxidase subunit VIII, and its physiological role and involvement in various diseases have not yet been elucidated. Generating neutralizing antibodies against the function of MCT-1 is of particular importance for investigating its physiological and pathophysiological roles, because MCT-1 is a fragmented peptide of its mother protein and hence it is very difficult to manipulate its expression level genetically without affecting expression of the mother protein. Here, we report the successful generation of a neutralizing monoclonal antibody (MAb) against MCT-1. This MAb, designated NM1B1, which specifically bound to the region of positions 9-22 of MCT-1, showed concentration-dependent inhibition of MCT-1-induced migration and β-hexosaminidase release in neutrophilic/granulocytic differentiated HL-60 cells. Thus, NM1B1, as a neutralizing MAb against MCT-1, could elucidate not just the physiological regulatory mechanisms of MCT-1 but also its pathophysiological involvement in various inflammatory diseases in vivo.
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Affiliation(s)
- Tatsuya Hattori
- Laboratory of Peptide Science, Graduate School of Bio-Science, Nagahama Institute of Bio-Science and Technology, Nagahama, Shiga 526-0829, Japan; Laboratory of Protein Engineering, Graduate School of Bio-Science, Nagahama Institute of Bio-Science and Technology, Nagahama, Shiga 526-0829, Japan
| | - Kenta Nakashima
- Laboratory of Peptide Science, Graduate School of Bio-Science, Nagahama Institute of Bio-Science and Technology, Nagahama, Shiga 526-0829, Japan
| | - Takayuki Marutani
- Laboratory of Peptide Science, Graduate School of Bio-Science, Nagahama Institute of Bio-Science and Technology, Nagahama, Shiga 526-0829, Japan
| | - Yoshiaki Kiso
- Laboratory of Peptide Science, Graduate School of Bio-Science, Nagahama Institute of Bio-Science and Technology, Nagahama, Shiga 526-0829, Japan
| | - Yoshisuke Nishi
- Laboratory of Protein Engineering, Graduate School of Bio-Science, Nagahama Institute of Bio-Science and Technology, Nagahama, Shiga 526-0829, Japan.
| | - Hidehito Mukai
- Laboratory of Peptide Science, Graduate School of Bio-Science, Nagahama Institute of Bio-Science and Technology, Nagahama, Shiga 526-0829, Japan.
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Active Peptide-Conjugated Chitosan Matrices as an Artificial Basement Membrane. Polymers (Basel) 2015. [DOI: 10.3390/polym7020281] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
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Yamada M, Hara S, Yamada T, Katagiri F, Hozumi K, Nomizu M. Double-stranded DNA stereoselectively promotes aggregation of amyloid-like fibrils and generates peptide/DNA matrices. Biopolymers 2014; 102:465-72. [DOI: 10.1002/bip.22571] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Revised: 09/22/2014] [Accepted: 09/27/2014] [Indexed: 01/09/2023]
Affiliation(s)
- Masanori Yamada
- Department of Chemistry, Faculty of Science; Okayama University of Science; Ridaicho, Kita-ku Okayama 700-0005 Japan
| | - Sachiko Hara
- Department of Chemistry, Faculty of Science; Okayama University of Science; Ridaicho, Kita-ku Okayama 700-0005 Japan
| | - Tetsuya Yamada
- Research Faculty of Agriculture; Hokkaido University; Sapporo 060-8589 Japan
| | - Fumihiko Katagiri
- School of Pharmacy; Tokyo University of Pharmacy and Life Sciences; Hachioji Tokyo 192-0392 Japan
| | - Kentaro Hozumi
- School of Pharmacy; Tokyo University of Pharmacy and Life Sciences; Hachioji Tokyo 192-0392 Japan
| | - Motoyoshi Nomizu
- School of Pharmacy; Tokyo University of Pharmacy and Life Sciences; Hachioji Tokyo 192-0392 Japan
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Otagiri D, Yamada Y, Hozumi K, Katagiri F, Kikkawa Y, Nomizu M. Cell attachment and spreading activity of mixed laminin peptide-chitosan membranes. Biopolymers 2013; 100:751-9. [DOI: 10.1002/bip.22303] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2013] [Revised: 04/24/2013] [Accepted: 05/28/2013] [Indexed: 01/16/2023]
Affiliation(s)
- Dai Otagiri
- Department of Clinical Biochemistry; Faculty of Pharmacy, Tokyo University of Pharmacy and Life Sciences; Hachioji Tokyo 192-0392 Japan
| | - Yuji Yamada
- Department of Clinical Biochemistry; Faculty of Pharmacy, Tokyo University of Pharmacy and Life Sciences; Hachioji Tokyo 192-0392 Japan
| | - Kentaro Hozumi
- Department of Clinical Biochemistry; Faculty of Pharmacy, Tokyo University of Pharmacy and Life Sciences; Hachioji Tokyo 192-0392 Japan
| | - Fumihiko Katagiri
- Department of Clinical Biochemistry; Faculty of Pharmacy, Tokyo University of Pharmacy and Life Sciences; Hachioji Tokyo 192-0392 Japan
| | - Yamato Kikkawa
- Department of Clinical Biochemistry; Faculty of Pharmacy, Tokyo University of Pharmacy and Life Sciences; Hachioji Tokyo 192-0392 Japan
| | - Motoyoshi Nomizu
- Department of Clinical Biochemistry; Faculty of Pharmacy, Tokyo University of Pharmacy and Life Sciences; Hachioji Tokyo 192-0392 Japan
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Yamada Y, Hozumi K, Katagiri F, Kikkawa Y, Nomizu M. Laminin-111-derived peptide-hyaluronate hydrogels as a synthetic basement membrane. Biomaterials 2013; 34:6539-47. [DOI: 10.1016/j.biomaterials.2013.05.044] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Accepted: 05/23/2013] [Indexed: 01/28/2023]
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He F, Wang X, Maruyama O, Kosaka R, Sogo Y, Ito A, Ye J. Improvement in endothelial cell adhesion and retention under physiological shear stress using a laminin-apatite composite layer on titanium. J R Soc Interface 2013; 10:20130014. [PMID: 23407573 DOI: 10.1098/rsif.2013.0014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Apatite (Ap), laminin-apatite composite (L5Ap, L10Ap, L20Ap and L40Ap) and albumin-apatite (AlbAp) composite layers were prepared on titanium (Ti) using a supersaturated calcium phosphate solution supplemented with laminin (0, 5, 10, 20 and 40 μg ml(-1)) or albumin (800 μg ml(-1)). With an increase in the concentrations of laminin in the supersaturated calcium phosphate solutions, the amounts of laminin immobilized on the Ti increased. The number of human umbilical vein endothelial cells (HUVECs) adhered to the laminin-apatite composite layers were remarkably higher than those to the untreated Ti, Ap layer and AlbAp composite layer. The number of cells adhered to the L40Ap was 4.3 times the untreated Ti. Moreover, cells adhered to the laminin-apatite composite layers showed significantly higher cell retention under the physiological shear stress for 1 h and 2 h than those to the untreated Ti, Ap layer and AlbAp composite layer. The number of cells remaining on the L40Ap under the physiological shear stress for 2 h was 9.5 times that of the untreated Ti. The laminin-apatite composite layer is a promising interfacial layer for endothelialization of blood-contacting materials.
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Affiliation(s)
- Fupo He
- Human Technology Research Institute, National Institute of Advanced Industrial Science and Technology, Central 6, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan
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Kikkawa Y, Hozumi K, Katagiri F, Nomizu M, Kleinman HK, Koblinski JE. Laminin-111-derived peptides and cancer. Cell Adh Migr 2012; 7:150-256. [PMID: 23263633 PMCID: PMC3544779 DOI: 10.4161/cam.22827] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Laminin-111 is a large trimeric basement membrane glycoprotein with many active sites. In particular, four peptides active in tumor malignancy studies have been identified in laminin-111 using a systematic peptide screening method followed by various assays. Two of the peptides (IKVAV and AG73) are found on the α1 chain, one (YIGSR) of the β1 chain and one (C16) on the γ1 chain. The four peptides have distinct activities and receptors. Since three of the peptides (IKVAV, AG73 and C16) strongly promote tumor growth, this may explain the potent effects laminin-111 has on malignant cells. The peptide, YIGSR, decreases tumor growth and experimental metastasis via a 32/67 kD receptor while IKVAV increases tumor growth, angiogenesis and protease activity via integrin receptors. AG73 increases tumor growth and metastases via syndecan receptors. C16 increases tumor growth and angiogenesis via integrins. Identification of such sites on laminin-111 will have use in defining strategies to develop therapeutics for cancer.
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Affiliation(s)
- Yamato Kikkawa
- Laboratory of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Tokyo, Japan
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Hongo K, Tsuno NH, Kawai K, Sasaki K, Kaneko M, Hiyoshi M, Murono K, Tada N, Nirei T, Sunami E, Takahashi K, Nagawa H, Kitayama J, Watanabe T. Hypoxia enhances colon cancer migration and invasion through promotion of epithelial-mesenchymal transition. J Surg Res 2012; 182:75-84. [PMID: 22959209 DOI: 10.1016/j.jss.2012.08.034] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2012] [Revised: 08/13/2012] [Accepted: 08/17/2012] [Indexed: 12/28/2022]
Abstract
BACKGROUND A hypoxic environment exists in most solid tumors because in rapidly growing tumors, the development of angiogenic vasculature is heterogenous, usually not enough to overcome the necessary oxygen supply. In an ischemic condition, cancer cells develop escape mechanisms to survive and leave the unfavorable environment. That result in the acquisition of increased potential for local invasion and evasion to distant organs. However, the escape mechanisms of cancer cells from hypoxic stress have not been fully characterized. MATERIALS AND METHODS The human colon cancer cell line LoVo was cultured in hypoxia, and the adhesive and migratory properties were analyzed. The expression of cell surface and cytoplasmic molecules was also investigated. RESULTS Under hypoxic conditions, cells developed epithelial-mesenchymal transition. The expression levels of α2, α5, and β1 integrins were significantly upregulated and, as a consequence, the ability to adhere to and migrate on collagen and fibronectin was increased. On the other hand, the expression of 67-kDa laminin receptor and the abilities to adhere to and migrate on laminin were decreased. Additionally, the expression of CXCR4 was significantly increased on cells cultured in hypoxia, and the chemotactic activity to stromal cell-derived factor 1α was remarkably increased. CONCLUSIONS Hypoxic stress induced active epithelial-mesenchymal transition in colon cancer cells, with the typical morphologic and functional changes. These morphologic and functional changes of β1 integrins, the 67-kDa laminin receptor, and CXCR4 may be essential for the acquisition of the invasive and metastatic features in colorectal cancer.
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Affiliation(s)
- Kumiko Hongo
- Department of Surgical Oncology, Faculty of Medical Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.
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Santos-Valle P, Guijarro-Muñoz I, Cuesta ÁM, Alonso-Camino V, Villate M, Álvarez-Cienfuegos A, Blanco FJ, Sanz L, Álvarez-Vallina L. The heterotrimeric laminin coiled-coil domain exerts anti-adhesive effects and induces a pro-invasive phenotype. PLoS One 2012; 7:e39097. [PMID: 22723936 PMCID: PMC3378518 DOI: 10.1371/journal.pone.0039097] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2011] [Accepted: 05/18/2012] [Indexed: 12/24/2022] Open
Abstract
Laminins are large heterotrimeric cross-shaped extracellular matrix glycoproteins with terminal globular domains and a coiled-coil region through which the three chains are assembled and covalently linked. Laminins are key components of basement membranes, and they serve as attachment sites for cell adhesion, migration and proliferation. In this work, we produced a recombinant fragment comprising the entire laminin coiled-coil of the α1-, β1-, and γ1-chains that assemble into a stable heterotrimeric coiled-coil structure independently of the rest of the molecule. This domain was biologically active and not only failed to serve as a substrate for cell attachment, spreading and focal adhesion formation but also inhibited cell adhesion to laminin when added to cells in a soluble form at the time of seeding. Furthermore, gene array expression profiling in cells cultured in the presence of the laminin coiled-coil domain revealed up-regulation of genes involved in cell motility and invasion. These findings were confirmed by real-time quantitative PCR and zymography assays. In conclusion, this study shows for the first time that the laminin coiled-coil domain displays anti-adhesive functions and has potential implications for cell migration during matrix remodeling.
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Affiliation(s)
- Patricia Santos-Valle
- Molecular Immunology Unit, Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, Spain
| | - Irene Guijarro-Muñoz
- Molecular Immunology Unit, Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, Spain
| | - Ángel M. Cuesta
- Molecular Immunology Unit, Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, Spain
| | - Vanesa Alonso-Camino
- Molecular Immunology Unit, Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, Spain
| | - Maider Villate
- Structural Biology Unit, CIC bioGUNE, Parque Tecnológico de Bizkaia, Derio, Spain
| | - Ana Álvarez-Cienfuegos
- Molecular Immunology Unit, Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, Spain
| | - Francisco J. Blanco
- Structural Biology Unit, CIC bioGUNE, Parque Tecnológico de Bizkaia, Derio, Spain
- IKERBASQUE, Basque Foundation for Science, Bilbao, Spain
| | - Laura Sanz
- Molecular Immunology Unit, Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, Spain
- * E-mail: (LS); (LA-V)
| | - Luis Álvarez-Vallina
- Molecular Immunology Unit, Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, Spain
- * E-mail: (LS); (LA-V)
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Katagiri F, Sudo M, Hamakubo T, Hozumi K, Nomizu M, Kikkawa Y. Identification of active sequences in the L4a domain of laminin α5 promoting neurite elongation. Biochemistry 2012; 51:4950-8. [PMID: 22621685 DOI: 10.1021/bi300214g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Laminin α5 is an extracellular matrix protein containing multiple domains implicated in various biological processes, such as embryogenesis and renal function. In this study, we used recombinant proteins and synthetic peptides to identify amino acid residues within the short arm region of α5 that were critical for neurite outgrowth activity. The short arm of α5 contains three globular domains (LN, L4a, and L4b) and three rodlike elements (LEa, LEb, and LEc). Recombinant proteins comprised of the α5 short arm fused with a Fc tag produced in 293 cells were assayed for PC12 (pheochromocytoma) cell adhesion and neurite outgrowth activities. Although it did not have cell attachment activity, neurite outgrowth was promoted by the recombinant protein. To narrow the region involved in neurite outgrowth activity, two truncated recombinant proteins were produced in 293 cells. A recombinant protein lacking L4a and LEb lost activity. Furthermore, we synthesized 78 partially overlapping peptides representing most of the amino acid sequences of L4a and LEb. Of the peptides, A5-76 [mouse laminin α5 928-939 (TSPDLFRLVFRY) in L4a] exhibited neurite outgrowth activity. Mutagenesis studies showed that Phe(933) and Arg(934) were involved in neurite outgrowth activity. Moreover, inhibition assays using anti-integrin monoclonal antibodies showed that neurite outgrowth on the α5 short arm was partially mediated by integrin α1β1. However, the antibodies to integrin α1 and β1 did not inhibit neurite elongation on the A5-76 peptide. These results suggest that in addition to cellular interactions with the active site in the L4a domain, the binding of integrin α1β1 seems to modulate neurite elongation on the short arm of α5.
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Affiliation(s)
- Fumihiko Katagiri
- Laboratory of Clinical Biochemistry, Tokyo University of Pharmacy and Life Sciences, Tokyo 192-0392, Japan
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Hozumi K, Sasaki A, Yamada Y, Otagiri D, Kobayashi K, Fujimori C, Katagiri F, Kikkawa Y, Nomizu M. Reconstitution of laminin-111 biological activity using multiple peptide coupled to chitosan scaffolds. Biomaterials 2012; 33:4241-50. [DOI: 10.1016/j.biomaterials.2012.02.055] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2012] [Accepted: 02/14/2012] [Indexed: 01/15/2023]
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Hozumi K, Ishikawa M, Hayashi T, Yamada Y, Katagiri F, Kikkawa Y, Nomizu M. Identification of cell adhesive sequences in the N-terminal region of the laminin α2 chain. J Biol Chem 2012; 287:25111-22. [PMID: 22654118 DOI: 10.1074/jbc.m112.348151] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The laminin α2 chain is specifically expressed in the basement membrane surrounding muscle and nerve. We screened biologically active sequences in the mouse laminin N-terminal region of α2 chain using 216 soluble peptides and three recombinant proteins (rec-a2LN, rec-a2LN+, and rec-a2N) by both the peptide- or protein-coated plate and the peptide-conjugated Sepharose bead assays. Ten peptides showed cell attachment activity in the plate assay, and 8 peptides were active in the bead assay. Seven peptides were active in the both assays. Five peptides promoted neurite outgrowth with PC12 cells. To clarify the cellular receptors, we examined the effects of heparin and EDTA on cell attachment to 11 active peptides. Heparin inhibited cell attachment to 10 peptides, and EDTA significantly affected only A2-8 peptide (YHYVTITLDLQQ, mouse laminin α2 chain, 117-128)-mediated cell attachment. Cell attachment to A2-8 was also specifically inhibited by anti-integrin β1 and anti-integrin α2β1 antibodies. These results suggest that A2-8 promotes an integrin α2β1-mediated cell attachment. The rec-a2LN protein, containing the A2-8 sequence, bound to integrin α2β1 and cell attachment to rec-a2LN was inhibited by A2-8 peptide. Further, alanine substitution analysis of both the A2-8 peptide and the rec-a2LN+ protein revealed that the amino acids Ile-122, Leu-124, and Asp-125 were involved in integrin α2β1-mediated cell attachment, suggesting that the A2-8 site plays a functional role as an integrin α2β1 binding site in the LN module. These active peptides may provide new insights on the molecular mechanism of laminin-receptor interactions.
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Affiliation(s)
- Kentaro Hozumi
- Department of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
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Higuchi A, Ling QD, Hsu ST, Umezawa A. Biomimetic cell culture proteins as extracellular matrices for stem cell differentiation. Chem Rev 2012; 112:4507-40. [PMID: 22621236 DOI: 10.1021/cr3000169] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Akon Higuchi
- Department of Chemical and Materials Engineering, National Central University, Jhongli, Taoyuan, 32001 Taiwan.
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Seo SY, Min SK, Bae HK, Roh D, Kang HK, Roh S, Lee S, Chun GS, Chung DJ, Min BM. A laminin-2-derived peptide promotes early-stage peripheral nerve regeneration in a dual-component artificial nerve graft. J Tissue Eng Regen Med 2012; 7:788-800. [DOI: 10.1002/term.1468] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2011] [Revised: 10/10/2011] [Accepted: 01/05/2012] [Indexed: 11/11/2022]
Affiliation(s)
- S. Y. Seo
- Department of Microbiology; Dong-A University College of Medicine; Busan; Republic of Korea
| | - S.-K. Min
- Department of Oral and Maxillofacial Surgery; Seoul National University School of Dentistry; Seoul; Republic of Korea
| | - H. K. Bae
- Department of Polymer Science and Engineering; Sungkyunkwan University; Suwon; Republic of Korea
| | - D. Roh
- Department of Polymer Science and Engineering; Sungkyunkwan University; Suwon; Republic of Korea
| | - H. K. Kang
- Department of Oral Biochemistry and Program in Cancer and Developmental Biology, DRI, and BK21 CLS; Seoul National University School of Dentistry; Republic of Korea
| | - S. Roh
- Department of Oral Biochemistry and Program in Cancer and Developmental Biology, DRI, and BK21 CLS; Seoul National University School of Dentistry; Republic of Korea
| | - S. Lee
- Department of Cell and Developmental Biology; Seoul National University School of Dentistry; Seoul; Republic of Korea
| | - G.-S. Chun
- Department of Oral Physiology; Dankook University School of Dentistry; Cheonan; Republic of Korea
| | - D.-J. Chung
- Department of Polymer Science and Engineering; Sungkyunkwan University; Suwon; Republic of Korea
| | - B.-M. Min
- Department of Oral Biochemistry and Program in Cancer and Developmental Biology, DRI, and BK21 CLS; Seoul National University School of Dentistry; Republic of Korea
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Yamada Y, Hozumi K, Aso A, Hotta A, Toma K, Katagiri F, Kikkawa Y, Nomizu M. Laminin active peptide/agarose matrices as multifunctional biomaterials for tissue engineering. Biomaterials 2012; 33:4118-25. [PMID: 22410171 DOI: 10.1016/j.biomaterials.2012.02.044] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2011] [Accepted: 02/24/2012] [Indexed: 01/11/2023]
Abstract
Cell adhesive peptides derived from extracellular matrix components are potential candidates to afford bio-adhesiveness to cell culture scaffolds for tissue engineering. Previously, we covalently conjugated bioactive laminin peptides to polysaccharides, such as chitosan and alginate, and demonstrated their advantages as biomaterials. Here, we prepared functional polysaccharide matrices by mixing laminin active peptides and agarose gel. Several laminin peptide/agarose matrices showed cell attachment activity. In particular, peptide AG73 (RKRLQVQLSIRT)/agarose matrices promoted strong cell attachment and the cell behavior depended on the stiffness of agarose matrices. Fibroblasts formed spheroid structures on the soft AG73/agarose matrices while the cells formed a monolayer with elongated morphologies on the stiff matrices. On the stiff AG73/agarose matrices, neuronal cells extended neuritic processes and endothelial cells formed capillary-like networks. In addition, salivary gland cells formed acini-like structures on the soft matrices. These results suggest that the peptide/agarose matrices are useful for both two- and three-dimensional cell culture systems as a multifunctional biomaterial for tissue engineering.
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Affiliation(s)
- Yuji Yamada
- Laboratory of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, 1432-1 Horinouchi, Hachioji, Tokyo 192-0392, Japan
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Meldal M, Wu B, Diness F, Michael R, Hagel G. Metabolically Stable Cellular Adhesion to Inert Surfaces. Chembiochem 2011; 12:2463-70. [DOI: 10.1002/cbic.201100382] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2011] [Indexed: 02/03/2023]
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Yamada Y, Hozumi K, Nomizu M. Construction and Activity of a Synthetic Basement Membrane with Active Laminin Peptides and Polysaccharides. Chemistry 2011; 17:10500-8. [DOI: 10.1002/chem.201101064] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Yuji Yamada
- Laboratory of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192‐0392 (Japan), Fax: (+81) 426‐76‐5662
| | - Kentaro Hozumi
- Laboratory of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192‐0392 (Japan), Fax: (+81) 426‐76‐5662
| | - Motoyoshi Nomizu
- Laboratory of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192‐0392 (Japan), Fax: (+81) 426‐76‐5662
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45
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Kikkawa Y, Kataoka A, Matsuda Y, Takahashi N, Miwa T, Katagiri F, Hozumi K, Nomizu M. Maintenance of hepatic differentiation by hepatocyte attachment peptides derived from laminin chains. J Biomed Mater Res A 2011; 99:203-10. [DOI: 10.1002/jbm.a.33176] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2011] [Revised: 04/17/2011] [Accepted: 05/27/2011] [Indexed: 12/16/2022]
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46
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Cell behavior on protein matrices containing laminin α1 peptide AG73. Biomaterials 2011; 32:4327-35. [DOI: 10.1016/j.biomaterials.2011.02.052] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2011] [Accepted: 02/25/2011] [Indexed: 02/04/2023]
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Yamada Y, Hozumi K, Katagiri F, Kikkawa Y, Nomizu M. Biological activity of laminin peptide-conjugated alginate and chitosan matrices. Biopolymers 2011; 94:711-20. [PMID: 20564024 DOI: 10.1002/bip.21429] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Laminin active peptide-conjugated chitosan mambranes have been previously demonstrated as a useful biomaterial for tissue engineering. Here, three laminin active peptides, A99 (AGTFALRGDNPQG), AG73 (RKRLQVQLSIRT), and EF1zz (ATLQLQEGRLHFXFDLGKGR, X: Nle), which interact with integrin αvβ3, syndecans, and integrin α2β1, respectively, were conjugated to alginate and evaluated the biological activities. A99-alginate (3-3000 ng/mm(2)) promoted cell attachment depending on the amount of alginate. More than 300 ng/mm(2) of the A99-alginate matrices effectively promoted cell attachment, cell spreading with well-organized actin stress fibers, and neurite outgrowth. AG73- and EF1zz-alginates promoted strong cell attachment at the all amounts (3-3000 ng/mm(2)). A99-alginate (30-3000 ng/mm(2)) promoted strong neurite outgrowth but lower amounts of A99-alginate (3 ng/mm(2)) showed weak activity. In contrast, AG73-alginates (3-30 ng/mm(2)) showed strong neurite outgrowth activity but higher amounts of AG73-alginate (300-3000 ng/mm(2)) decreased the activity. These data indicate that neurite outgrowth activity of peptide-alginate matrices is peptide specific and the activity is dependent on the amount of alginate. Further, biological activities of the peptides on alginate and chitosan matrices were different, suggesting that the integrin- and syndecan-mediated cellular functions on the peptide-matrices are highly influenced by the scaffold structure including polysaccharide types and amounts. The laminin active peptide-conjugated alginate and chitosan matrices can control receptor type specific functions and are useful for tissue engineering.
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Affiliation(s)
- Yuji Yamada
- Laboratory of Clinical Biochemistry, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan
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Samir P, Link AJ. Analyzing the cryptome: uncovering secret sequences. AAPS JOURNAL 2011; 13:152-8. [PMID: 21327597 DOI: 10.1208/s12248-011-9252-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2010] [Accepted: 12/23/2010] [Indexed: 12/21/2022]
Abstract
The mammalian cryptome consists of bioactive peptides generated by the proteolysis of precursor proteins. It is speculated that the cryptide repertoire increases the complexity of the proteome by an order of magnitude. Cryptides have been found to function in a wide range of processes including neuronal signaling, antigen presentation, and the inflammatory response. Due to their potential as therapeutic agents, there has been an increasing interest in studying cryptides. In this review, we discuss different approaches for discovering these hidden peptides and how proteomic tools can be utilized to aid in their identification and characterization.
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Affiliation(s)
- Parimal Samir
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, Tennessee 37232-2363, USA
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Chiono V, Descrovi E, Sartori S, Gentile P, Ballarini M, Giorgis F, Ciardelli G. Biomimetic Tailoring of the Surface Properties of Polymers at the Nanoscale: Medical Applications. SCANNING PROBE MICROSCOPY IN NANOSCIENCE AND NANOTECHNOLOGY 2 2011. [DOI: 10.1007/978-3-642-10497-8_22] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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Hozumi K, Akizuki T, Yamada Y, Hara T, Urushibata S, Katagiri F, Kikkawa Y, Nomizu M. Cell adhesive peptide screening of the mouse laminin α1 chain G domain. Arch Biochem Biophys 2010; 503:213-22. [PMID: 20727343 DOI: 10.1016/j.abb.2010.08.012] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2010] [Revised: 08/11/2010] [Accepted: 08/13/2010] [Indexed: 11/24/2022]
Abstract
Cell adhesive peptides have been widely applied for therapeutic drugs, drug delivery systems, and biomaterials. Previously, we identified various cell adhesive sequences in the G domains of four laminin α chains (α2-α5) by the systematic soluble peptide screening. We also identified five cell-binding sequences in the laminin α1 chain G domain using synthetic peptide-polystyrene beads. Here, we re-screened cell adhesive peptides in the laminin α1 chain G domain by the systematic soluble peptides screening. The 110 soluble peptides were evaluated for their cell adhesive activities using human fibrosarcoma HT1080 cells and human dermal fibroblasts. Fourteen peptides were newly identified as a cell adhesive. Additionally, four peptides (AG22: SSFHFDGSGYAM, AG42: TFDLLRNSYGVRK, AG76: HQNQMDYATLQLQ, AG86: LGGLPSHYRARNI) promoted integrin-mediated cell adhesion. Further, neurite outgrowth activity with rat pheochromocytoma PC12 cells was evaluated and two peptides (AG20: SIGLWNYIEREGK, AG26: SPNGLLFYLASNG) were newly identified for neurite outgrowth activity. These results suggested that the systematic soluble peptides screening approach is an accurate and powerful strategy for finding biologically active sequences. The active sequences newly identified here could be involved in the biological functions of this domain. The active peptides are useful for evaluating molecular mechanisms of laminin-receptor interactions and for developing cell adhesive biomaterials.
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Affiliation(s)
- Kentaro Hozumi
- Tokyo University of Pharmacy and Life Sciences, Hachioji, Japan
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