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Sonnentag SJ, Jenne F, Orian-Rousseau V, Nesterov-Mueller A. High-throughput screening for cell binding and repulsion peptides on multifunctionalized surfaces. Commun Biol 2024; 7:870. [PMID: 39020032 PMCID: PMC11255233 DOI: 10.1038/s42003-024-06541-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 07/03/2024] [Indexed: 07/19/2024] Open
Abstract
The adhesion of cells to the extracellular matrix engages cell surface receptors such as integrins, proteoglycans and other types of cell adhesion molecules such as CD44. To closely examine the determinants of cell adhesion, herein we describe the generation of high-density peptide arrays and test the growth of cells on these multifunctionalized surfaces. The peptide library used consists of over 11,000 different sequences, either random or derived from existing proteins. By applying this screen to SW620 mCherry colorectal cancer cells, we select for peptides with both maximum cell adhesion and maximum cell repulsion. All of these extreme properties are based on unique combinations of amino acids. Here, we identify peptides with maximum cell repulsion on secreted frizzled- and Dickkopf-related proteins. Peptides with strong cell repulsion are found at the poles of the TNF-alpha homotrimer. The formation of cellular patterns on alternating highly repulsive and adhesive peptides are examined. Our screen allows the identification of peptides suitable for biomedical and tissue engineering applications.
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Affiliation(s)
- Steffen J Sonnentag
- Institute of Biological and Chemical Systems - Functional Molecular Systems, Karlsruhe Institute of Technology, Kaiserstraße 12, 76131, Karlsruhe, Germany
| | - Felix Jenne
- Institute of Microstructure Technology, Karlsruhe Institute of Technology, Kaiserstraße 12, 76131, Karlsruhe, Germany
| | - Véronique Orian-Rousseau
- Institute of Biological and Chemical Systems - Functional Molecular Systems, Karlsruhe Institute of Technology, Kaiserstraße 12, 76131, Karlsruhe, Germany.
| | - Alexander Nesterov-Mueller
- Institute of Microstructure Technology, Karlsruhe Institute of Technology, Kaiserstraße 12, 76131, Karlsruhe, Germany.
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2
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Carrow KP, Hamilton HL, Hopps MP, Li Y, Qiao B, Payne NC, Thompson MP, Zhang X, Magassa A, Fattah M, Agarwal S, Vincent MP, Buyanova M, Bertin PA, Mazitschek R, Olvera de la Cruz M, Johnson DA, Johnson JA, Gianneschi NC. Inhibiting the Keap1/Nrf2 Protein-Protein Interaction with Protein-Like Polymers. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2311467. [PMID: 38241649 PMCID: PMC11257647 DOI: 10.1002/adma.202311467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 01/11/2024] [Indexed: 01/21/2024]
Abstract
Successful and selective inhibition of the cytosolic protein-protein interaction (PPI) between nuclear factor erythroid 2-related factor 2 (Nrf2) and Kelch-like ECH-associating protein 1 (Keap1) can enhance the antioxidant response, with the potential for a therapeutic effect in a range of settings including in neurodegenerative disease (ND). Small molecule inhibitors have been developed, yet many have off-target effects, or are otherwise limited by poor cellular permeability. Peptide-based strategies have also been attempted to enhance specificity, yet face challenges due to susceptibility to degradation and lack of cellular penetration. Herein, these barriers are overcome utilizing a polymer-based proteomimetics. The protein-like polymer (PLP) consists of a synthetic, lipophilic polymer backbone displaying water soluble Keap1-binding peptides on each monomer unit forming a brush polymer architecture. The PLPs are capable of engaging Keap1 and displacing the cellular protective transcription factor Nrf2, which then translocates to the nucleus, activating the antioxidant response element (ARE). PLPs exhibit increased Keap1 binding affinity by several orders of magnitude compared to free peptides, maintain serum stability, are cell-penetrant, and selectively activate the ARE pathway in cells, including in primary cortical neuronal cultures. Keap1/Nrf2-inhibitory PLPs have the potential to impact the treatment of disease states associated with dysregulation of oxidative stress, such as NDs.
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Affiliation(s)
- Kendal P Carrow
- Department of Biomedical Engineering, McCormick School of Engineering, Medical Scientist Training Program, Feinberg School of Medicine, International Institute for Nanotechnology, Northwestern University, Evanston, 60208, IL, USA
| | - Haylee L Hamilton
- School of Pharmacy, University of Wisconsin, Madison, 57305, WI, USA
| | - Madeline P Hopps
- International Institute for Nanotechnology, Department of Chemistry, Chemistry of Life Processes Institute, Northwestern University, Evanston, 60208, IL, USA
| | - Yang Li
- Department of Chemical and Biological Engineering, McCormick School of Engineering, Northwestern University, Evanston, 60208, IL, USA
| | - Baofu Qiao
- Department of Natural Sciences, Baruch College, City University of New York, New York, 10010, NY, USA
| | - N Connor Payne
- Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Department of Chemistry & Chemical Biology, Harvard University, Cambridge, 02138, MA, USA
| | - Matthew P Thompson
- International Institute for Nanotechnology, Department of Chemistry, Chemistry of Life Processes Institute, Northwestern University, Evanston, 60208, IL, USA
| | - Xiaoyu Zhang
- International Institute for Nanotechnology, Department of Chemistry, Chemistry of Life Processes Institute, Northwestern University, Evanston, 60208, IL, USA
| | - Assa Magassa
- International Institute for Nanotechnology, Department of Chemistry, Chemistry of Life Processes Institute, Northwestern University, Evanston, 60208, IL, USA
| | - Mara Fattah
- International Institute for Nanotechnology, Department of Chemistry, Chemistry of Life Processes Institute, Northwestern University, Evanston, 60208, IL, USA
| | - Shivangi Agarwal
- Grove Biopharma, Inc, 1375 W. Fulton St., Ste. 650, Chicago, 60558, IL, USA
| | - Michael P Vincent
- Grove Biopharma, Inc, 1375 W. Fulton St., Ste. 650, Chicago, 60558, IL, USA
| | - Marina Buyanova
- Grove Biopharma, Inc, 1375 W. Fulton St., Ste. 650, Chicago, 60558, IL, USA
| | - Paul A Bertin
- Grove Biopharma, Inc, 1375 W. Fulton St., Ste. 650, Chicago, 60558, IL, USA
| | - Ralph Mazitschek
- Center for Systems Biology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, 02142, MA, USA
- Harvard T.H. Chan School of Public Health, Boston, 02115, MA, USA
| | - Monica Olvera de la Cruz
- Department of Materials Science & Engineering, Robert R. McCormick School of Engineering and Applied Science, Center for Computation and Theory of Soft Materials, Northwestern University, Evanston, 60208, IL, USA
| | - Delinda A Johnson
- School of Pharmacy, University of Wisconsin, Madison, 57305, WI, USA
| | - Jeffrey A Johnson
- School of Pharmacy, University of Wisconsin, Madison, 57305, WI, USA
| | - Nathan C Gianneschi
- Departments of Chemistry, Materials Science & Engineering, Biomedical Engineering, Pharmacology, Simpson Querrey Institute, Chemistry of Life Processes Institute, Lurie Cancer Center, International Institute for Nanotechnology, Northwestern University, Evanston, 60208, IL, USA
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3
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Li K, Lin M, Huang K, Han J, Wei L, Miao L, Chen H, Gong Q, Li X, Hu L. Therapeutic effect and mechanism of action of pterostilbene nano drugs in dry eye models. Exp Eye Res 2024; 241:109836. [PMID: 38387712 DOI: 10.1016/j.exer.2024.109836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 02/05/2024] [Accepted: 02/17/2024] [Indexed: 02/24/2024]
Abstract
Dry eye disease is a multifactorial dysfunction of the tear film and ocular surface, with etiology involving inflammation and oxidative stress on the ocular surface. Pterostilbene (PS) is a secondary metabolite extracted from plants, which possesses remarkable anti-inflammatory and antioxidant effects. However, its application is limited by light instability and very poor water solubility. We modified fat-soluble PS into a biparental pterostilbene-glutaric anhydride-arginine-glycine-aspartic acid (PS-GA-RGD) nanomedicine by prodrug ligation of functional peptides. The aim of this study was to explore the protective effect and potential mechanism of PS-GA-RGD on dry eye disease in vitro and in vivo. We demonstrated good long-term biocompatibility of PS-GA-RGD through rabbit eye stimulation test. Lipopolysaccharide (LPS) was used to induce murine macrophages RAW 264.7 to establish an inflammation and oxidative stress model. In this model, PS-GA-RGD effectively reduced the production of ROS and 8-OHdG, enhancing the expression of antioxidant factor Nrf2 and antioxidant enzyme heme oxygenase-1. In addition, the expression of NF-κB inflammatory pathway significantly increased in LPS-induced RAW 264.7 cells, while PS-GA-RGD could significantly reduce this pathway. Hypertonic saline was utilized to establish a hypertonic model of human corneal epithelial cells. PS-GA-RGD was found to significantly reduce the production of ROS and NLRP3 inflammasomes in this model, exhibiting superior efficacy compared to PS. Experimental dry eye animal models were co-induced with subcutaneous injection of scopolamine and an intelligently controlled environmental system. We demonstrated that PS-GA-RGD nano drugs can prevent and reduce corneal epithelial cell defects and apoptosis, protect conjunctival goblet cells, and have an excellent anti-inflammatory effect. Finally, we demonstrated that RGD sequence in PS-GA-RGD can enhance cellular uptake, corneal retention, and penetration, thereby increasing their bioavailability and efficacy by a cell uptake assay and rabbit corneal drug retention experiment. Overall, this study highlights the potential of PS-GA-RGD nanomedicines in the treatment of dry eyes.
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Affiliation(s)
- Kexin Li
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China; National Engineering Research Center of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China; State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China
| | - Meng Lin
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China; National Engineering Research Center of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China; State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China
| | - Kaiyan Huang
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China; National Engineering Research Center of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China; State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China
| | - Jiaxin Han
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China; National Engineering Research Center of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China; State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China
| | - Linzhi Wei
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China; National Engineering Research Center of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China; State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China
| | - Lijie Miao
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China; National Engineering Research Center of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China; State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China
| | - Huijuan Chen
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China; National Engineering Research Center of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China; State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China
| | - Qianwen Gong
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China; National Engineering Research Center of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China; State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China.
| | - Xingyi Li
- National Engineering Research Center of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China.
| | - Liang Hu
- National Clinical Research Center for Ocular Diseases, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China; National Engineering Research Center of Ophthalmology and Optometry, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China; State Key Laboratory of Ophthalmology, Optometry and Visual Science, Eye Hospital, Wenzhou Medical University, Wenzhou, 325027, China.
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Lee ALZ, Balakrishnan N, Ng JY, Liu S, Ong ZY, Wang Y, Gao S, Yang YY. Injectable Hydrogels Prepared Using Novel Synthetic Short Peptides with Defined Structure and Gelatin as Scaffolds to Support Cell and Tissue Growth. Adv Healthc Mater 2024; 13:e2302786. [PMID: 37837308 DOI: 10.1002/adhm.202302786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Revised: 10/06/2023] [Indexed: 10/15/2023]
Abstract
Animal-derived basement-membrane matrices such as Geltrex are used to grow cells and tissues. Particularly, these are commonly applied to support tumor growth in animals for cancer research. However, a material derived from an animal source has an undefined composition, and may thus have unavoidable batch-to-batch variation in properties. To overcome these issues, a series of synthetic short peptides to form hydrogels is designed in combination with gelatin to promote cell adhesion and growth. The peptides have sequences of (X1Y1X2Y2)2 , where X1 and X2 are hydrophobic residues, while Y1 and Y2 are hydrophilic residues. The peptides spontaneously fold and self-assemble into a β-sheet secondary structure upon contact with salts, and then aggregate to form hydrophilic networks of hydrogels. Hybrid hydrogels formed by mixing the peptide IEVEIRVK (IVK8) with gelatin are injectable and enzymatically degradable. The hybrid hydrogels at optimal compositions support SW480 and HepG2 tumor spheroid growth in vitro as effectively as Geltrex. More importantly, the peptide/gelatin hydrogels support tumor growth in a SW480 human colorectal adenocarcinoma xenograft mouse model. Altogether, the results illustrate that the synthetic peptide/gelatin hybrid hydrogel is a promising scaffold that can be used to support cell and tissue growth both in vitro and in vivo.
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Affiliation(s)
- Ashlynn Ling Zhi Lee
- Institute of Bioengineering and Bioimaging, Agency for Science, Technology, and Research (A*STAR), 31 Biopolis Way, Singapore, 138669, Singapore
| | - Nithiyaa Balakrishnan
- Bioprocessing Technology Institute, Agency for Science, Technology, and Research (A*STAR), 20 Biopolis Way, Centros #06-01, Singapore, 138668, Singapore
| | - Jian Yao Ng
- Bioprocessing Technology Institute, Agency for Science, Technology, and Research (A*STAR), 20 Biopolis Way, Centros #06-01, Singapore, 138668, Singapore
| | - Shaoqiong Liu
- Institute of Bioengineering and Nanotechnology, Agency for Science, Technology, and Research (A*STAR), 31 Biopolis Way, Singapore, 138669, Singapore
| | - Zhan Yuin Ong
- School of Physics and Astronomy, St. James's University of Leeds, Leeds, LS2 9JT, UK
- Leeds Institute of Medical Research, St. James's University of Leeds, Leeds, LS2 9JT, UK
| | - Yanming Wang
- Institute of Bioengineering and Bioimaging, Agency for Science, Technology, and Research (A*STAR), 31 Biopolis Way, Singapore, 138669, Singapore
| | - Shujun Gao
- Institute of Bioengineering and Nanotechnology, Agency for Science, Technology, and Research (A*STAR), 31 Biopolis Way, Singapore, 138669, Singapore
| | - Yi Yan Yang
- Bioprocessing Technology Institute, Agency for Science, Technology, and Research (A*STAR), 20 Biopolis Way, Centros #06-01, Singapore, 138668, Singapore
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Forero JC, Carvajal K, Guzmán F, Acevedo C, Osses N, Santana P. Use of Chitosan from Southern King Crab to Develop Films Functionalized with RGD Peptides for Potential Tissue Engineering Applications. Biomimetics (Basel) 2023; 8:323. [PMID: 37504211 PMCID: PMC10807027 DOI: 10.3390/biomimetics8030323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 07/01/2023] [Accepted: 07/18/2023] [Indexed: 07/29/2023] Open
Abstract
Southern King Crab (SKC) represents an important fishery resource that has the potential to be a natural source of chitosan (CS) production. In tissue engineering, CS is very useful to generate biomaterials. However, CS has a lack of signaling molecules that facilitate cell-substrate interaction. Therefore, RGD (arginine-glycine-aspartic acid) peptides corresponding to the main integrin recognition site in extracellular matrix proteins have been used to improve the CS surface. The aim of this study was to evaluate in vitro cell adhesion and proliferation of CS films synthesized from SKC shell wastes functionalized with RGD peptides. The FTIR spectrum of CS isolated from SKC shells (SKC-CS) was comparable to commercial CS. Thermal properties of films showed similar endothermic peaks at 53.4 and 53.0 °C in commercial CS and SKC-CS, respectively. The purification and molecular masses of the synthesized RGD peptides were confirmed using HPLC and ESI-MS mass spectrometry, respectively. Mouse embryonic fibroblast cells showed higher adhesion on SKC-CS (1% w/v) film when it was functionalized with linear RGD peptides. In contrast, a cyclic RGD peptide showed similar adhesion to control peptide (RDG), but the highest cell proliferation was after 48 h of culture. This study shows that functionalization of SKC-CS films with linear or cyclic RGD peptides are useful to improve effects on cell adhesion or cell proliferation. Furthermore, our work contributes to knowledge of a new source of CS to synthesize constructs for tissue engineering applications.
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Affiliation(s)
- Juan Carlos Forero
- Escuela de Ciencias de la Salud, Universidad de Viña del Mar, Viña del Mar 2580022, Chile;
| | - Karina Carvajal
- Centro Interdisciplinario de Neurociencia de Valparaíso, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso 2360102, Chile;
| | - Fanny Guzmán
- Núcleo Biotecnología Curauma, Pontificia Universidad Católica de Valparaíso, Valparaíso 2340025, Chile;
| | - Cristian Acevedo
- Departamento de Física, Universidad Técnica Federico Santa María, Valparaíso 2390123, Chile;
| | - Nelson Osses
- Instituto de Química, Facultad de Ciencias, Pontificia Universidad Católica de Valparaíso, Valparaíso 2340025, Chile
- IMPACT, Center of Interventional Medicine for Precision and Advanced Cellular Therapy, Santiago 7620086, Chile
| | - Paula Santana
- Instituto de Ciencias Aplicadas, Facultad de Ingeniería, Universidad Autónoma de Chile, Santiago 8910060, Chile
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Guo J, Park EJ, Teo YC, Abbas A, Goh D, Smith RAA, Nie Y, Nguyen HTL, Yeong JPS, Cool S, Makio H, Teo P. Bioactive polyethylene synthesized by ring opening metathesis polymerization for potential orthopaedic applications. Polym Chem 2023. [DOI: 10.1039/d2py01545e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
Bioactive polyethylene incorporating hydrophobic PE-bearing macromonomers and hydrophilic PEGylated-peptide macromonomers was synthesized via ROMP. 3D-printed sheets of it with UHMWPE showed enhanced osteogenic activity for potential orthopaedic applications.
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Lin CJ, Lin YH, Chiang TC, Yu CY. Synthesis of the polymers containing norbornene and tetraphenylethene by ring-opening metathesis polymerization and their structural characterization, aggregation-induced emission and aniline detection. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Teo YC, Park EJ, Guo J, Abbas A, Smith RAA, Goh D, Yeong JPS, Cool S, Teo P. Bioactive PCL-Peptide and PLA-Peptide Brush Copolymers for Bone Tissue Engineering. ACS APPLIED BIO MATERIALS 2022; 5:4770-4778. [PMID: 36101969 DOI: 10.1021/acsabm.2c00455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report the modular synthesis of bioactive brush-type polycaprolactone-peptide and polylactide-peptide copolymers for applications in bone tissue engineering. The brush copolymers containing pendant side chains of polycaprolactone (PCL) or polylactide (PLA) and PEGylated peptides, including linear Arg-Gly-Asp and collagen-like peptide (Gly-Pro-Hyp)3, were synthesized by ring-opening metathesis polymerization with high conversions and low dispersities (<1.5). These PCL-peptide and PLA-peptide copolymers exhibited good thermal stability for material processing using melt-extrusion-based methods. The copolymers were blended with commercial PCL or PLA, extruded into filaments, and 3D printed using fused filament fabrication methods. These bioactive PCL and PLA materials promoted osteogenic differentiation in vitro and showed good biocompatibility in in vivo murine model study. The promising results presented herein will serve as a useful guide for the design and functionalization of PCL or PLA materials for use in bone tissue engineering.
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Affiliation(s)
- Yew Chin Teo
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research, 2 Fusionopolis Way, Innovis, Singapore 138634
| | - Eun Ju Park
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research, 2 Fusionopolis Way, Innovis, Singapore 138634
| | - Jiayi Guo
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research, 2 Fusionopolis Way, Innovis, Singapore 138634
| | - Asyraf Abbas
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research, 2 Fusionopolis Way, Innovis, Singapore 138634
| | - Raymond Alexander Alfred Smith
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, 61 Biopolis Drive, Singapore 138673
| | - Denise Goh
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, 61 Biopolis Drive, Singapore 138673
| | - Joe Poh Sheng Yeong
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, 61 Biopolis Drive, Singapore 138673
| | - Simon Cool
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, 61 Biopolis Drive, Singapore 138673
| | - Peili Teo
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research, 2 Fusionopolis Way, Innovis, Singapore 138634
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An S, Nam J, Kanimozhi C, Song Y, Kim S, Shin N, Gopalan P, Kim M. Photoimageable Organic Coating Bearing Cyclic Dithiocarbonate for a Multifunctional Surface. ACS APPLIED MATERIALS & INTERFACES 2022; 14:3274-3283. [PMID: 35045603 DOI: 10.1021/acsami.1c19559] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
We report the fabrication of photocross-linkable and surface-functionalizable polymeric thin films using reactive cyclic dithiocarbonate (DTC)-containing copolymers. The chemical functionalities of these material surfaces were precisely defined with light illumination. The DTC copolymers, namely, poly(dithiocarbonate methylene methacrylate-random-alkyl methacrylate)s, were synthesized via reversible addition-fragmentation chain transfer polymerization, and the reaction kinetics was thoroughly analyzed. The copolymers were cross-linked into a coating using a bifunctional urethane cross-linker that contains a photolabile o-nitrobenzyl group and releases aniline upon exposure to light. The nucleophilic attack of the aromatic amine opens the DTC group, forming a carbamothioate bond and generating a reactive thiol group in the process. The surface concentrations of the unreacted DTC and thiol were effectively controlled by varying the amounts of the copolymer and the cross-linker. The use of methacrylate comonomers led to additional reactive surface functionality such as carboxylic acid via acid hydrolysis. The successful transformations of the resulting DTC, thiol, and carboxylic acid groups to different functionalities via sequential nucleophilic ring opening, thiol-ene, and carbodiimide coupling reactions under ambient conditions were confirmed quantitatively using X-ray photoelectron spectroscopy. The presented chemistries were readily adapted to the immobilization of complex molecules such as a fluorophore and a protein in lithographically defined regions, highlighting their potential in creating organic coatings that can have multiple functional groups under ambient conditions.
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Affiliation(s)
- Sol An
- Department of Chemistry and Chemical Engineering, Inha University, Incheon 22212, Republic of Korea
| | - Jieun Nam
- Department of Chemistry and Chemical Engineering, Inha University, Incheon 22212, Republic of Korea
| | - Catherine Kanimozhi
- Department of Materials Science and Engineering, University of Wisconsin, Madison, Wisconsin 53706, United States
| | - Youngjoo Song
- Department of Chemistry and Chemical Engineering, Inha University, Incheon 22212, Republic of Korea
| | - Seungjun Kim
- Department of Chemistry and Chemical Engineering, Inha University, Incheon 22212, Republic of Korea
| | - Naechul Shin
- Department of Chemical Engineering, Inha University, Incheon 22212, Republic of Korea
- Program in Biomedical Science & Engineering, Inha University, Incheon 22212, Republic of Korea
| | - Padma Gopalan
- Department of Materials Science and Engineering, University of Wisconsin, Madison, Wisconsin 53706, United States
| | - Myungwoong Kim
- Department of Chemistry and Chemical Engineering, Inha University, Incheon 22212, Republic of Korea
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Braga CB, Pilli RA, Ornelas C, Weck M. Near-Infrared Fluorescent Micelles from Poly(norbornene) Brush Triblock Copolymers for Nanotheranostics. Biomacromolecules 2021; 22:5290-5306. [PMID: 34779620 DOI: 10.1021/acs.biomac.1c01196] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This contribution describes the design and synthesis of multifunctional micelles based on amphiphilic brush block copolymers (BBCPs) for imaging and selective drug delivery of natural anticancer compounds. Well-defined BBCPs were synthesized via one-pot multi-step sequential grafting-through ring-opening metathesis polymerization (ROMP) of norbornene-based macroinitiators. The norbornenes employed contain a poly(ethylene glycol) methyl ether chain, an alkyl bromide chain, and/or a near-infrared (NIR) fluorescent cyanine dye. After block copolymerization, post-polymerization transformations using bromide-azide substitution, followed by the strain-promoted azide-alkyne cycloaddition (SPAAC) allowed for the functionalization of the BBCPs with the piplartine (PPT) moiety, a natural product with well-documented cytotoxicity against cancer cell lines, via an ester linker between the drug and the polymer side chain. The amphiphilic BBCPs self-assembled in aqueous media into nano-sized spherical micelles with neutral surface charges, as confirmed by dynamic light scattering analysis and transmission electron microscopy. During self-assembly, paclitaxel (PTX) could be effectively encapsulated into the hydrophobic core to form stable PTX-loaded micelles with high loading capacities and encapsulation efficiencies. The NIR fluorescent dye-containing micelles exhibited remarkable photophysical properties, excellent colloidal stability under physiological conditions, and a pH-induced disassembly under slightly acidic conditions, allowing for the release of the drug in a controlled manner. The in vitro studies demonstrated that the micelles without the drug (blank micelles) are biocompatible at concentrations of up to 1 mg mL-1 and present a high cellular internalization capacity toward MCF-7 cancer cells. The drug-functionalized micelles showed in vitro cytotoxicity comparable to free PPT and PTX against MCF-7 and PC3 cancer cells, confirming efficient drug release into the tumor environment upon cellular internalization. Furthermore, the drug-functionalized micelles exhibited higher selectivity than the pristine drugs and preferential cellular uptake in human cancer cell lines (MCF-7 and PC3) when compared to the normal breast cell line (MCF10A). This study provides an efficient strategy for the development of versatile polymeric nanosystems for drug delivery and image-guided diagnostics. Notably, the easy functionalization of BBCP side chains via SPAAC opens up the possibility for the preparation of a library of multifunctional systems containing other drugs or functionalities, such as target groups for recognition.
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Affiliation(s)
- Carolyne B Braga
- Institute of Chemistry, University of Campinas (UNICAMP), P.O. Box 6154, Campinas, São Paulo CEP 13083-970, Brazil.,Molecular Design Institute and Department of Chemistry, New York University, 100 Washington Square East, New York, New York 10003, United States
| | - Ronaldo A Pilli
- Institute of Chemistry, University of Campinas (UNICAMP), P.O. Box 6154, Campinas, São Paulo CEP 13083-970, Brazil
| | - Catia Ornelas
- Institute of Chemistry, University of Campinas (UNICAMP), P.O. Box 6154, Campinas, São Paulo CEP 13083-970, Brazil
| | - Marcus Weck
- Molecular Design Institute and Department of Chemistry, New York University, 100 Washington Square East, New York, New York 10003, United States
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11
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Kelly MP, Napolitano T, Anand P, Ho JSK, Jabeen S, Kuppan J, Manir S, Holford M. Induced Disassembly of a Virus-like Particle under Physiological Conditions for Venom Peptide Delivery. Bioconjug Chem 2020; 32:111-120. [PMID: 33306347 DOI: 10.1021/acs.bioconjchem.0c00494] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Virus-like particles (VLPs) show considerable promise for the in vivo delivery of therapeutic compounds such as bioactive venom peptides. While loading and targeting protocols have been developed for numerous VLP prototypes, induced disassembly under physiological conditions of neutral pH, moderate temperature, and aqueous medium remain a challenge. Here, we implement and evaluate a general mechanism, based on ring-opening metathesis polymerization (ROMP), for controllable VLP disassembly. This mechanism is independent of cell-specific factors or the manipulation of environmental conditions such as pH and temperature that cannot be readily controlled in vivo. The ROMP substrate norbornene is covalently conjugated to surface-exposed lysine residues of a P22 bacteriophage-derived VLP, and ROMP is induced by treatment with the water-soluble ruthenium catalyst AquaMet. Disruption of the P22 shell and release of a GFP reporter is confirmed via native agarose electrophoresis, TEM, and dynamic light scattering (DLS) analyses. Our ROMP disassembly strategy does not depend on the particular structure or morphology of the P22 nanocontainer and is adaptable to other VLP prototypes for the potential delivery of venom peptides for pharmacological applications.
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Affiliation(s)
- M Patrick Kelly
- Department of Chemistry and Biochemistry, Hunter College, 695 Park Avenue, New York, New York 10065, United States.,The Ph.D. Programs in Biochemistry, Chemistry and Biology Graduate Center of the City University of New York, 365 5th Avenue, New York, New York 10016, United States
| | - Tanya Napolitano
- Department of Chemistry and Biochemistry, Hunter College, 695 Park Avenue, New York, New York 10065, United States.,The Ph.D. Programs in Biochemistry, Chemistry and Biology Graduate Center of the City University of New York, 365 5th Avenue, New York, New York 10016, United States
| | - Prachi Anand
- Department of Chemistry and Biochemistry, Hunter College, 695 Park Avenue, New York, New York 10065, United States
| | - Justin S K Ho
- Department of Chemistry and Biochemistry, Hunter College, 695 Park Avenue, New York, New York 10065, United States
| | - Shakeela Jabeen
- Department of Chemistry and Biochemistry, Hunter College, 695 Park Avenue, New York, New York 10065, United States.,The Ph.D. Programs in Biochemistry, Chemistry and Biology Graduate Center of the City University of New York, 365 5th Avenue, New York, New York 10016, United States
| | - Jessica Kuppan
- Department of Chemistry and Biochemistry, Hunter College, 695 Park Avenue, New York, New York 10065, United States
| | - Sujoy Manir
- Department of Chemistry and Biochemistry, Hunter College, 695 Park Avenue, New York, New York 10065, United States
| | - Mandë Holford
- Department of Chemistry and Biochemistry, Hunter College, 695 Park Avenue, New York, New York 10065, United States.,The Ph.D. Programs in Biochemistry, Chemistry and Biology Graduate Center of the City University of New York, 365 5th Avenue, New York, New York 10016, United States.,Department of Invertebrate Zoology, The American Museum of Natural History, New York, New York 10024, United States.,Department of Biochemistry, Weill Cornell Medicine, 413 E. 69th Street, New York, New York 10021, United States
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12
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Abstract
The specific microenvironment that cells reside in fundamentally impacts their broader function in tissues and organs. At its core, this microenvironment is composed of precise arrangements of cells that encourage homotypic and heterotypic cell-cell interactions, biochemical signaling through soluble factors like cytokines, hormones, and autocrine, endocrine, or paracrine secretions, and the local extracellular matrix (ECM) that provides physical support and mechanobiological stimuli, and further regulates biochemical signaling through cell-ECM interactions like adhesions and growth factor sequestering. Each cue provided in the microenvironment dictates cellular behavior and, thus, overall potential to perform tissue and organ specific function. It follows that in order to recapitulate physiological cell responses and develop constructs capable of replacing damaged tissue, we must engineer the cellular microenvironment very carefully. Many great strides have been made toward this goal using various three-dimensional (3D) tissue culture scaffolds and specific media conditions. Among the various 3D biomimetic scaffolds, synthetic hydrogels have emerged as a highly tunable and tissue-like biomaterial well-suited for implantable tissue-engineered constructs. Because many synthetic hydrogel materials are inherently bioinert, they minimize unintentional cell responses and thus are good candidates for long-term implantable grafts, patches, and organs. This review will provide an overview of commonly used biomaterials for forming synthetic hydrogels for tissue engineering applications and techniques for modifying them to with bioactive properties to elicit the desired cell responses.
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Affiliation(s)
- Asli Z Unal
- Department of Biomedical Engineering, Duke University, 101 Science Drive, Campus Box 90281, Durham, North Carolina 27708, United States
| | - Jennifer L West
- Department of Biomedical Engineering, Duke University, 101 Science Drive, Campus Box 90281, Durham, North Carolina 27708, United States
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13
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Callmann CE, Thompson MP, Gianneschi NC. Poly(peptide): Synthesis, Structure, and Function of Peptide-Polymer Amphiphiles and Protein-like Polymers. Acc Chem Res 2020; 53:400-413. [PMID: 31967781 PMCID: PMC11042489 DOI: 10.1021/acs.accounts.9b00518] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
In this Account, we describe the organization of functional peptides as densely arrayed side chains on polymer scaffolds which we introduce as a new class of material called poly(peptide). We describe two general classes of poly(peptide): (1) Peptide-Polymer Amphiphiles (PPAs), which consist of block copolymers with a dense grouping of peptides arrayed as the side chains of the hydrophilic block and connected to a hydrophobic block that drives micelle assembly, and (2) Protein-like Polymers (PLPs), wherein peptide-brush polymers are composed from monomers, each containing a peptide side chain. Peptides organized in this manner imbue polymers or polymeric nanoparticles with a range of functional qualities inherent to their specific sequence. Therefore, polymers or nanoparticles otherwise lacking bioactivity or responsiveness to stimuli, once linked to a peptide of choice, can now bind proteins, enter cells and tissues, have controlled and switchable biodistribution patterns, and be enzyme substrates (e.g., for kinases, phosphatases, proteases). Indeed, where peptide substrates are incorporated, kinetically or thermodynamically driven morphological transitions can be enzymatically induced in the polymeric material. Synergistically, the polymer enforces changes in peptide activity and function by virtue of packing and constraining the peptide. The scaffold can protect peptides from proteolysis, change the pharmacokinetic profile of an intravenously injected peptide, increase the cellular uptake of an otherwise cell impermeable therapeutic peptide, or change peptide substrate activity entirely. Moreover, in addition to the sequence-controlled peptides (generated by solid phase synthesis), the polymer can carry its own sequence-dependent information, especially through living polymerization strategies allowing well-defined blocks and terminal labels (e.g., dyes, contrast agents, charged moieties). Hence, the two elements, peptide and polymer, cooperate to yield materials with unique function and properties quite apart from each alone. Herein, we describe the development of synthetic strategies for accessing these classes of biomolecule polymer conjugates. We discuss the utility of poly(peptide)-based materials in a range of biomedical applications, including imaging of diseased tissues (myocardial infarction and cancer), delivering small molecule drugs to tumors with high specificity, imparting cell permeability to otherwise impermeable peptides, protecting bioactive peptides from proteolysis in harsh conditions (e.g., stomach acid and whole blood), and transporting proteins into traditionally difficult-to-transfect cell types, including stem cells. Poly(peptide) materials offer new properties to both the constituent peptides and to the polymers, which can be tuned by the design of the oligopeptide sequence, degree of polymerization, peptide arrangement on the polymer backbone, and polymer backbone chemistry. These properties establish this approach as valuable for the development of peptides as medicines and materials in a range of settings.
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Affiliation(s)
- Cassandra E. Callmann
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, United States
- Departments of Chemistry, Materials Science & Engineering, Biomedical Engineering, and Pharmacology, International Institute of Nanotechnology, Simpson Querrey Institute, Chemistry of Life Processes Institute, Lurie Cancer Center, Northwestern University, Evanston, Illinois 60208, United States
| | - Matthew P. Thompson
- Departments of Chemistry, Materials Science & Engineering, Biomedical Engineering, and Pharmacology, International Institute of Nanotechnology, Simpson Querrey Institute, Chemistry of Life Processes Institute, Lurie Cancer Center, Northwestern University, Evanston, Illinois 60208, United States
| | - Nathan C. Gianneschi
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, United States
- Departments of Chemistry, Materials Science & Engineering, Biomedical Engineering, and Pharmacology, International Institute of Nanotechnology, Simpson Querrey Institute, Chemistry of Life Processes Institute, Lurie Cancer Center, Northwestern University, Evanston, Illinois 60208, United States
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14
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Bai Y, Xing H, Bai Y, Tan LH, Hwang K, Li J, Lu Y, Zimmerman SC. Independent control over size, valence, and elemental composition in the synthesis of DNA-nanoparticle conjugates. Chem Sci 2020; 11:1564-1572. [PMID: 34084387 PMCID: PMC8148076 DOI: 10.1039/c9sc05656d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
DNA–nanoparticle conjugates have found widespread use in sensing, imaging, and as components of devices. However, their synthesis remains relatively complicated and empirically based, often requiring specialized protocols for conjugates of different size, valence, and elemental composition. Here we report a novel, bottom-up approach for the synthesis of DNA–nanoparticle conjugates, based on ring-opening metathesis polymerization (ROMP), intramolecular crosslinking, and template synthesis. Using size, valence, and elemental composition as three independent synthetic parameters, various conjugates can be obtained using a facile and universal procedure. Examples are given to show the usefulness of these conjugates as sensing probes, building blocks for self-assembly, and as model particles for structure–property relationship studies. DNA–nanoparticle conjugates can be synthesized with independent control over size, valence and elemental composition using a template-based strategy.![]()
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Affiliation(s)
- Yugang Bai
- Department of Chemistry, University of Illinois at Urbana-Champaign Urbana IL 61801 USA .,Institute of Chemical Biology and Nanomedicine, State Key Laboratory of Chemo/Biosensing and Chemometrics, Department of Chemistry, Hunan University Changsha Hunan 410000 China
| | - Hang Xing
- Department of Chemistry, University of Illinois at Urbana-Champaign Urbana IL 61801 USA .,Institute of Chemical Biology and Nanomedicine, State Key Laboratory of Chemo/Biosensing and Chemometrics, Department of Chemistry, Hunan University Changsha Hunan 410000 China.,Beckman Institute for Advanced Science and Technology University of Illinois at Urbana-Champaign Urbana IL 61801 USA
| | - Yunhao Bai
- Department of Chemistry, University of Illinois at Urbana-Champaign Urbana IL 61801 USA
| | - Li Huey Tan
- Department of Chemistry, University of Illinois at Urbana-Champaign Urbana IL 61801 USA
| | - Kevin Hwang
- Department of Chemistry, University of Illinois at Urbana-Champaign Urbana IL 61801 USA
| | - Ji Li
- Department of Chemistry, University of Illinois at Urbana-Champaign Urbana IL 61801 USA
| | - Yi Lu
- Department of Chemistry, University of Illinois at Urbana-Champaign Urbana IL 61801 USA .,Beckman Institute for Advanced Science and Technology University of Illinois at Urbana-Champaign Urbana IL 61801 USA
| | - Steven C Zimmerman
- Department of Chemistry, University of Illinois at Urbana-Champaign Urbana IL 61801 USA
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15
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Xu X, Chen X, Li J. Natural protein bioinspired materials for regeneration of hard tissues. J Mater Chem B 2020; 8:2199-2215. [DOI: 10.1039/d0tb00139b] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
This review describes the protein bioinspired materials for the repair of hard tissues such as enamel, dentin and bone.
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Affiliation(s)
- Xinyuan Xu
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- P. R. China
| | - Xingyu Chen
- College of Medicine
- Southwest Jiaotong University
- Chengdu 610003
- China
| | - Jianshu Li
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- P. R. China
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16
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Clauder F, Czerniak AS, Friebe S, Mayr SG, Scheinert D, Beck-Sickinger AG. Endothelialization of Titanium Surfaces by Bioinspired Cell Adhesion Peptide Coatings. Bioconjug Chem 2019; 30:2664-2674. [DOI: 10.1021/acs.bioconjchem.9b00573] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Franziska Clauder
- Institute of Biochemistry, Faculty of Life Sciences, Leipzig University, Brüderstrasse 34, 04103 Leipzig, Germany
| | - Anne Sophie Czerniak
- Institute of Biochemistry, Faculty of Life Sciences, Leipzig University, Brüderstrasse 34, 04103 Leipzig, Germany
| | - Sabrina Friebe
- Leibniz-Institute of Surface Engineering (IOM), Permoserstrasse 15, 04318 Leipzig, Germany
| | - Stefan G. Mayr
- Leibniz-Institute of Surface Engineering (IOM), Permoserstrasse 15, 04318 Leipzig, Germany
| | - Dierk Scheinert
- Department of Angiology, University Hospital Leipzig, Liebigstrasse 20, 04103 Leipzig, Germany
| | - Annette G. Beck-Sickinger
- Institute of Biochemistry, Faculty of Life Sciences, Leipzig University, Brüderstrasse 34, 04103 Leipzig, Germany
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17
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Nowalk JA, Fang C, Short AL, Weiss RM, Swisher JH, Liu P, Meyer TY. Sequence-Controlled Polymers Through Entropy-Driven Ring-Opening Metathesis Polymerization: Theory, Molecular Weight Control, and Monomer Design. J Am Chem Soc 2019; 141:5741-5752. [PMID: 30714723 PMCID: PMC6685222 DOI: 10.1021/jacs.8b13120] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The bulk properties of a copolymer are directly affected by monomer sequence, yet efficient, scalable, and controllable syntheses of sequenced copolymers remain a defining challenge in polymer science. We have previously demonstrated, using polymers prepared by a step-growth synthesis, that hydrolytic degradation of poly(lactic- co-glycolic acid)s is dramatically affected by sequence. While much was learned, the step-growth mechanism gave no molecular weight control, unpredictable yields, and meager scalability. Herein, we describe the synthesis of closely related sequenced polyesters prepared by entropy-driven ring-opening metathesis polymerization (ED-ROMP) of strainless macromonomers with imbedded monomer sequences of lactic, glycolic, 6-hydroxy hexanoic, and syringic acids. The incorporation of ethylene glycol and metathesis linkers facilitated synthesis and provided the olefin functionality needed for ED-ROMP. Ring-closing to prepare the cyclic macromonomers was demonstrated using both ring-closing metathesis and macrolactonization reactions. Polymerization produced macromolecules with controlled molecular weights on a multigram scale. To further enhance molecular weight control, the macromonomers were prepared with cis-olefins in the metathesis-active segment. Under these selectivity-enhanced (SEED-ROMP) conditions, first-order kinetics and narrow dispersities were observed and the effect of catalyst initiation rate on the polymerization was investigated. Enhanced living character was further demonstrated through the preparation of block copolymers. Computational analysis suggested that the enhanced polymerization kinetics were due to the cis-macrocyclic olefin being less flexible and having a larger population of metathesis-reactive conformers. Although used for polyesters in this investigation, SEED-ROMP represents a general method for incorporation of sequenced segments into molecular weight-controlled polymers.
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Affiliation(s)
- Jamie A. Nowalk
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Cheng Fang
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
- Computational Modeling & Simulation Program, University of Pittsburgh, Pittsburgh, Pennsylvania, 15260
| | - Amy L. Short
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Ryan M. Weiss
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Jordan H. Swisher
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Peng Liu
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Tara Yvonne Meyer
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, 15219, United States
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18
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Multiple integrin ligands provide a highly adhesive and osteoinductive surface that improves selective cell retention technology. Acta Biomater 2019; 85:106-116. [PMID: 30557698 DOI: 10.1016/j.actbio.2018.12.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 12/11/2018] [Accepted: 12/13/2018] [Indexed: 01/01/2023]
Abstract
Among various bone tissue engineering strategies, selective cell retention (SCR) technology has been used as a practical clinical method for bone graft manufacturing in real time. The more mesenchymal stem cells (MSCs) are retained, the better the osteoinductive microenvironment provided by the scaffold, which in turn promotes the osteogenesis of the SCR-fabricated bone grafts. Integrin receptors are crucial to cell-matrix adhesion and signal transduction. We designed a collagen-binding domain (CBD)-containing IKVAV-cRGD peptide (CBD-IKVAV-cRGD peptide) to complement the collagen-based demineralized bone matrix (DBM) with a functionalized surface containing multiple integrin ligands, which correspond to the highly expressed integrin subtypes on MSCs. This DBM/CBD-IKVAV-cRGD composite exhibited superior in vitro adhesion capacity to cultured MSCs, as determined by oscillatory cell adhesion assay, centrifugal cell adhesion assay and mimetic SCR. Moreover, it promoted the retention of MSC-like CD271+ cells and MSC-like CD90+/CD105+ cells in the clinical SCR method. Furthermore, the DBM/CBD-IKVAV-cRGD composite induced robust MSC osteogenesis, coupled with the activation of the downstream FAK-ERK1/2 signaling pathway of integrins. The SCR-prepared DBM/CBD-IKVAV-cRGD composite displayed superior in vivo osteogenesis, indicating that it may be potentially utilized as a biomaterial in SCR-mediated bone transplantation. STATEMENT OF SIGNIFICANCE: Selective cell retention technology (SCR) has been utilized in clinical settings to manufacture bioactive bone grafts. Specifically, demineralized bone matrix (DBM) is a widely-used SCR clinical biomaterial but it displays poor adhesion performance and osteoinduction. Improvements of the DBM that promote cell adhesion and osteoinduction will benefit SCR-prepared implants. In this work, we developed a novel peptide that complements the DBM with a functionalized surface of multiple integrin ligands, which are corresponding to integrin subtypes available on human bone marrow-derived mesenchymal stem cells (MSCs). Our results indicate this novel functionalized bioscaffold greatly increases SCR-mediated MSC adhesion and in vivo osteogenesis. Overall, this novel material has promising SCR applications and may likely provide highly bioactive bone implants in clinical settings.
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19
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Hamdan F, Bigdeli Z, Asghari SM, Sadremomtaz A, Balalaie S. Synthesis of Modified RGD-Based Peptides and Their in vitro Activity. ChemMedChem 2019; 14:282-288. [PMID: 30506622 DOI: 10.1002/cmdc.201800704] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Indexed: 11/07/2022]
Abstract
Arg-Gly-Asp (RGD) peptides represent the most outstanding recognition motif involved in cell adhesion that binds to the αv β3 integrin, which has been targeted for cancer therapy. Various RGD-containing peptides and peptidomimetics have been designed and synthesized to selectively inhibit this integrin. In this study, the synthesis of RGD-based peptides through the incorporation of the short bioactive peptide Phe-Ala-Lys-Leu-Phe (FAKLF) at the C and N termini of RGD has been achieved by using a solid-phase peptide synthesis approach. The peptides were purified by means of preparative RP-HPLC and their structures were confirmed through HRMS (ESI). The MTT assay revealed that the RGD and FAKLF peptides inhibited the proliferation of human umbilical vein endothelial cells (HUVECs) in a dose-dependent manner, with IC50 values of 3000 and 500 ng mL-1 , respectively. Interestingly, a drastic improvement was observed in the antiproliferative activity of the combined structures of the FAKLFRGD and RGDFAKLF peptides, leading to IC50 values of 200 and 136.7 ng mL-1 , respectively. Meanwhile, based on apoptosis results, the potential of peptides to induce apoptosis, in accordance with their antiproliferative activity, indicated that the RGD and FAKLF peptides, and the peptides synthesized based on their combinations induced cell apoptosis in a dose-dependent manner followed by inhibition of the proliferation of endothelial cells. Moreover, the incorporation of d-leucine increased the induction of apoptosis by these peptides.
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Affiliation(s)
- Fatima Hamdan
- Peptide Chemistry Research Center, K.N. Toosi University of Technology, P.O. Box 15875-4416, Tehran, Iran
| | - Zahra Bigdeli
- Peptide Chemistry Research Center, K.N. Toosi University of Technology, P.O. Box 15875-4416, Tehran, Iran
| | - S Mohsen Asghari
- Department of Biology, Faculty of Sciences, University of Guilan, Rasht, Iran
| | - Afsaneh Sadremomtaz
- Department of Biology, Faculty of Sciences, University of Guilan, Rasht, Iran
| | - Saeed Balalaie
- Peptide Chemistry Research Center, K.N. Toosi University of Technology, P.O. Box 15875-4416, Tehran, Iran.,Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
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20
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Hamdan F, Bigdeli Z, Balalaie S, Sewald N, Michalek C. Efficient synthesis of novel RGD based peptides and the conjugation of the pyrazine moiety to their N-terminus. NEW J CHEM 2019. [DOI: 10.1039/c8nj04874f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel RGD based peptides (RGDFAKLF and RGDNGRG) were designed and synthesized and were later coupled to the pyrazine moiety at the N-terminus. The IC50 values from the in vitro study of the target peptides using a cell adhesion assay indicated the essential impact of the existence of the pyrazine moiety. Meanwhile, peptide 4 exhibited the best IC50 value.
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Affiliation(s)
- Fatima Hamdan
- Peptide Chemistry Research Center
- K. N. Toosi University of Technology
- Tehran
- Iran
| | - Zahra Bigdeli
- Peptide Chemistry Research Center
- K. N. Toosi University of Technology
- Tehran
- Iran
| | - Saeed Balalaie
- Peptide Chemistry Research Center
- K. N. Toosi University of Technology
- Tehran
- Iran
- Medical Biology Research Center
| | - Norbert Sewald
- Organic and Bioorganic Chemistry
- Department of Chemistry
- Bielefeld University
- D-33615 Bielefeld
- Germany
| | - Carmela Michalek
- Organic and Bioorganic Chemistry
- Department of Chemistry
- Bielefeld University
- D-33615 Bielefeld
- Germany
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21
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Christoffersson J, Aronsson C, Jury M, Selegård R, Aili D, Mandenius CF. Fabrication of modular hyaluronan-PEG hydrogels to support 3D cultures of hepatocytes in a perfused liver-on-a-chip device. Biofabrication 2018; 11:015013. [DOI: 10.1088/1758-5090/aaf657] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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22
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Abstract
The conjugation of biomolecules can impart materials with the bioactivity necessary to modulate specific cell behaviors. While the biological roles of particular polypeptide, oligonucleotide, and glycan structures have been extensively reviewed, along with the influence of attachment on material structure and function, the key role played by the conjugation strategy in determining activity is often overlooked. In this review, we focus on the chemistry of biomolecule conjugation and provide a comprehensive overview of the key strategies for achieving controlled biomaterial functionalization. No universal method exists to provide optimal attachment, and here we will discuss both the relative advantages and disadvantages of each technique. In doing so, we highlight the importance of carefully considering the impact and suitability of a particular technique during biomaterial design.
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Affiliation(s)
- Christopher D. Spicer
- Department
of Medical Biochemistry and Biophysics, Karolinska Institutet, Scheeles Väg 2, Stockholm, Sweden
| | - E. Thomas Pashuck
- NJ
Centre for Biomaterials, Rutgers University, 145 Bevier Road, Piscataway, New Jersey United States
| | - Molly M. Stevens
- Department
of Medical Biochemistry and Biophysics, Karolinska Institutet, Scheeles Väg 2, Stockholm, Sweden
- Department
of Materials, Department of Bioengineering, and Institute of Biomedical Engineering, Imperial College London, Exhibition Road, London, United Kingdom
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23
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Nguyen HVT, Gallagher NM, Vohidov F, Jiang Y, Kawamoto K, Zhang H, Park JV, Huang Z, Ottaviani MF, Rajca A, Johnson JA. Scalable Synthesis of Multivalent Macromonomers for ROMP. ACS Macro Lett 2018; 7:472-476. [PMID: 30271675 PMCID: PMC6162068 DOI: 10.1021/acsmacrolett.8b00201] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The polymerization of functional monomers provides direct access to functional polymers without need for postpolymerization modification; however, monomer synthesis can become a bottleneck of this approach. New methods that enable rapid installation of functionality into monomers for living polymerization are valuable. Here, we report the three-step convergent synthesis (two-step longest linear sequence) of a divalent exo-norbornene imide capable of efficient coupling with various nucleophiles and azides to produce diversely functionalized branched macromonomers optimized for ring-opening metathesis polymerization (ROMP). In addition, we describe an efficient iterative procedure for the synthesis of tri-and tetra-valent branched macromonomers. We demonstrate the use of these branched macromonomers for the synthesis of Janus bottlebrush block copolymers as well as for the generation of bottlebrush polymers with up to three conjugated small molecules per repeat unit. This work significantly expands the scalability and diversity of nanostructured macromolecules accessible via ROMP.
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Affiliation(s)
- Hung V.-T. Nguyen
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Nolan M. Gallagher
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Farrukh Vohidov
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Yivan Jiang
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Ken Kawamoto
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Hui Zhang
- Department of Chemistry, University of Nebraska, Lincoln, Nebraska 68588, United States
| | - Jiwon V. Park
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Zhihao Huang
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | | | - Andrzej Rajca
- Department of Chemistry, University of Nebraska, Lincoln, Nebraska 68588, United States
| | - Jeremiah A. Johnson
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
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24
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Stukel JM, Willits RK. The interplay of peptide affinity and scaffold stiffness on neuronal differentiation of neural stem cells. ACTA ACUST UNITED AC 2018; 13:024102. [PMID: 29133625 DOI: 10.1088/1748-605x/aa9a4b] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Cells are sensitive to physical cues in their environment, such as the stiffness of the substrate, peptide density, and peptide affinity. Understanding how neural stem cells (NSCs) sense and respond to these matrix cues has the potential to improve disease outcome, particularly if a regenerative response can be exploited. While the material properties are known to influence other stem cells, little is known about how NSC differentiation is altered by this interplay of mechanical, or bulk properties, with peptide concentration and affinity, or microscale properties. We are interested in the combined effect of bulk and microscale features in an in vitro hydrogel model and therefore we investigated NSC differentiation by focusing on integrin interactions via RGD peptide affinity and concentration. Our studies demonstrated that the peptide concentration affected adhesion as there were more cells on scaffolds with 1 mM RGD than 2.5 mM RGD. The hydrogel stiffness affected neurite length in differentiating NSCs, as 0.1-0.8 kPa substrates promoted greater neurite extension than 4.2-7.9 kPa substrates. The NSCs differentiated towards β-ΙΙΙ tubulin positive cells on scaffolds with RGD after 7 days and those scaffolds containing 1 mM linear or cyclic RGD had longer neurite extensions than scaffolds containing 0.1 or 2.5 mM RGD. While peptide affinity had a lesser effect on the NSC response in our hydrogel system, blocking actin, myosin II, or integrin interactions resulted in changes to the cell morphology and focal adhesion assembly. Overall, these results demonstrated NSCs are more responsive to a change in tissue stiffness than peptide affinity in the range of gels tested, which may influence design of materials for neural tissue engineering.
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Xie N, Feng K, Shao J, Chen B, Tung CH, Wu LZ. A simple, modular synthesis of bifunctional peptide-polynorbornenes for apoptosis induction and fluorescence imaging of cancer cells. Polym Chem 2018. [DOI: 10.1039/c7py01730h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Bifunctional peptide-polynorbornenes were designed and fabricated via modular ROMP for mitochondrial-dependent apoptosis induction and fluorescence imaging of cancer cells.
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Affiliation(s)
- Nan Xie
- School of Pharmaceutical Sciences
- Capital Medical University
- Beijing 100069
- P. R. China
| | - Ke Feng
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry & School of Future Technology
- University of CAS
- the Chinese Academy of Sciences
- Beijing 100190
| | - Jianqun Shao
- School of Pharmaceutical Sciences
- Capital Medical University
- Beijing 100069
- P. R. China
| | - Bin Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry & School of Future Technology
- University of CAS
- the Chinese Academy of Sciences
- Beijing 100190
| | - Chen-Ho Tung
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry & School of Future Technology
- University of CAS
- the Chinese Academy of Sciences
- Beijing 100190
| | - Li-Zhu Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry & School of Future Technology
- University of CAS
- the Chinese Academy of Sciences
- Beijing 100190
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26
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Kangarlou S, Ramezanpour S, Balalaie S, Roudbar Mohammadi S, Haririan I. Curcumin-loaded nanoliposomes linked to homing peptides for integrin targeting and neuropilin-1-mediated internalization. PHARMACEUTICAL BIOLOGY 2017; 55:277-285. [PMID: 27937055 PMCID: PMC6130459 DOI: 10.1080/13880209.2016.1261301] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Revised: 08/17/2016] [Accepted: 11/07/2016] [Indexed: 06/06/2023]
Abstract
CONTEXT Curcumin, a naturally occurring polyphenol, has been extensively studied for its broad-spectrum anticancer effects. The potential benefits are, however, limited due to its poor water solubility and rapid degradation which result in low bioavailability on administration. OBJECTIVES This study encapsulates curcumin in nanoliposomes including an integrin-homing peptide combined with a C end R neuropilin-1 targeting motif for targeted delivery and receptor-mediated internalization, respectively. MATERIALS AND METHODS The linear GHHNGR (Glycine-Histidine-Histidine-Asparagine-Glycine-Arginine) was synthesized through F-moc chemistry on 2-chlorotrityl chloride resin and conjugated to oleic acid. The lipoyl-peptide units were then co-assembled with lecithin and 0-75 mole % Tween-80 into liposomes. Curcumin was passively entrapped using a film hydration technique and its degradation profile was examined within seven consecutive days. The cytotoxic effects of the curcumin-loaded liposomes were studied on MCF-7 and MDA-MB-468, during 24 h exposure in MTT assay. RESULTS The maximum curcumin entrapment (15.5% W/W) and minimum degradation (< 23%) were obtained in a pH switch loading method from 5.7 to 8, in nanoliposomes (< 50 nm) containing oleyl-peptide, lecithin and Tween-80 (1:1:0.75 mole ratio). The oleyl-peptide did not prove any haemolytic activity (< 1.5%) up to 10-fold of its experimental concentration. The curcumin-loaded liposomes displayed significant reduction in the viabilities of MCF-7 (IC50 3.8 μM) and MDA-MB-468 (IC50 5.4 μM). DISCUSSION AND CONCLUSION This study indicated potential advantages of the peptide-conjugated liposomes in drug transport to the cancer cells. This feature might be an outcome of probable interactions between the targeted nanoliposomes with the integrin and neuropilin-1 receptors.
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Affiliation(s)
- Sogol Kangarlou
- Department of Pharmaceutical Biomaterials School of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Sorour Ramezanpour
- Peptide Chemistry Research Center, K.N. Toosi University of Technology, Tehran, Iran
| | - Saeed Balalaie
- Peptide Chemistry Research Center, K.N. Toosi University of Technology, Tehran, Iran
| | - Shahla Roudbar Mohammadi
- Department of Medical Mycology School of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Ismaeil Haririan
- Department of Pharmaceutical Biomaterials School of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
- Medical Biomaterials Research Center, Tehran University of Medical Sciences, Tehran, Iran
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27
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Paik BA, Mane SR, Jia X, Kiick KL. Responsive Hybrid (Poly)peptide-Polymer Conjugates. J Mater Chem B 2017; 5:8274-8288. [PMID: 29430300 PMCID: PMC5802422 DOI: 10.1039/c7tb02199b] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
(Poly)peptide-polymer conjugates continue to garner significant interest in the production of functional materials given their composition of natural and synthetic building blocks that confer select and synergistic properties. Owing to opportunities to design predefined architectures and structures with different morphologies, these hybrid conjugates enable new approaches for producing micro- or nanomaterials. Their modular design enables the incorporation of multiple responsive properties into a single conjugate. This review presents recent advances in (poly)peptide-polymer conjugates for drug-delivery applications, with a specific focus on the utility of the (poly)peptide component in the assembly of particles and nanogels, as well as the role of the peptide in triggered drug release.
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Affiliation(s)
- Bradford A Paik
- Department of Materials Science and Engineering, University of Delaware, 201 DuPont Hall, Newark, DE 19716-3106
| | - Shivshankar R Mane
- The Institude For Chemical Technology and Polymer Chemistry, Karlsruhe Institute of Technology, Engesserstr. 18, 76128 Karlsruhe, Germany
| | - Xinqiao Jia
- Department of Materials Science and Engineering, University of Delaware, 201 DuPont Hall, Newark, DE 19716-3106
- Department of Biomedical Engineering, University of Delaware, 150 Academy Street, 161 Colburn Lab, Newark, DE 19716-3106
- Delaware Biotechnology Institute, 15 Innovation Way, Newark, DE 19711
| | - Kristi L Kiick
- Department of Materials Science and Engineering, University of Delaware, 201 DuPont Hall, Newark, DE 19716-3106
- Department of Biomedical Engineering, University of Delaware, 150 Academy Street, 161 Colburn Lab, Newark, DE 19716-3106
- Delaware Biotechnology Institute, 15 Innovation Way, Newark, DE 19711
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28
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Louage B, De Wever O, Hennink WE, De Geest BG. Developments and future clinical outlook of taxane nanomedicines. J Control Release 2017; 253:137-152. [DOI: 10.1016/j.jconrel.2017.03.027] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2017] [Revised: 03/14/2017] [Accepted: 03/16/2017] [Indexed: 02/09/2023]
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29
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Sankaran S, Jaatinen L, Brinkmann J, Zambelli T, Vörös J, Jonkheijm P. Cell Adhesion on Dynamic Supramolecular Surfaces Probed by Fluid Force Microscopy-Based Single-Cell Force Spectroscopy. ACS NANO 2017; 11:3867-3874. [PMID: 28319669 PMCID: PMC5406783 DOI: 10.1021/acsnano.7b00161] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Accepted: 03/20/2017] [Indexed: 05/23/2023]
Abstract
Biomimetic and stimuli-responsive cell-material interfaces are actively being developed to study and control various cell-dynamics phenomena. Since cells naturally reside in the highly dynamic and complex environment of the extracellular matrix, attempts are being made to replicate these conditions in synthetic biomaterials. Supramolecular chemistry, dealing with noncovalent interactions, has recently provided possibilities to incorporate such dynamicity and responsiveness in various types of architectures. Using a cucurbit[8]uril-based host-guest system, we have successfully established a dynamic and electrochemically responsive interface for the display of the integrin-specific ligand, Arg-Gly-Asp (RGD), to promote cell adhesion. Due to the weak nature of the noncovalent forces by which the components at the interface are held together, we expected that cell adhesion would also be weaker in comparison to traditional interfaces where ligands are usually immobilized by covalent linkages. To assess the stability and limitations of our noncovalent interfaces, we performed single-cell force spectroscopy studies using fluid force microscopy. This technique enabled us to measure rupture forces of multiple cells that were allowed to adhere for several hours on individual substrates. We found that the rupture forces of cells adhered to both the noncovalent and covalent interfaces were nearly identical for up to several hours. We have analyzed and elucidated the reasons behind this result as a combination of factors including the weak rupture force between linear Arg-Gly-Asp and integrin, high surface density of the ligand, and increase in effective concentration of the supramolecular components under spread cells. These characteristics enable the construction of highly dynamic biointerfaces without compromising cell-adhesive properties.
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Affiliation(s)
- Shrikrishnan Sankaran
- Bioinspired
Molecular Engineering Laboratory, MIRA Institute for
Biomedical Research and Technical Medicine and Molecular Nanofabrication Group,
MESA+ Institute for Nanotechnology, University
of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Leena Jaatinen
- Department
of Electronics and Communications Engineering, Tampere University of Technology, BioMediTech, Finn-Medi 1 L 4, Biokatu 6, FI-33520 Tampere, Finland
- Laboratory
of Biosensors and Bioelectronics, Institute for Biomedical Engineering, ETH Zurich, CH-8092 Zurich, Switzerland
| | - Jenny Brinkmann
- Bioinspired
Molecular Engineering Laboratory, MIRA Institute for
Biomedical Research and Technical Medicine and Molecular Nanofabrication Group,
MESA+ Institute for Nanotechnology, University
of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Tomaso Zambelli
- Laboratory
of Biosensors and Bioelectronics, Institute for Biomedical Engineering, ETH Zurich, CH-8092 Zurich, Switzerland
| | - Janos Vörös
- Laboratory
of Biosensors and Bioelectronics, Institute for Biomedical Engineering, ETH Zurich, CH-8092 Zurich, Switzerland
| | - Pascal Jonkheijm
- Bioinspired
Molecular Engineering Laboratory, MIRA Institute for
Biomedical Research and Technical Medicine and Molecular Nanofabrication Group,
MESA+ Institute for Nanotechnology, University
of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
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30
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Li J, Yu Y, Myungwoong K, Li K, Mikhail J, Zhang L, Chang CC, Gersappe D, Simon M, Ober C, Rafailovich M. Manipulation of cell adhesion and dynamics using RGD functionalized polymers. J Mater Chem B 2017; 5:6307-6316. [DOI: 10.1039/c7tb01209h] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
An ABA tri-block co-polymer with RGD peptide sequences inserted were synthesized. Cell adhesion can be controlled by polymer configuration changing via electrical field.
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Affiliation(s)
- Juyi Li
- Department of Materials Science & Chemical Engineering
- Stony Brook University
- Stony Brook
- USA
| | - Yingjie Yu
- Department of Materials Science & Chemical Engineering
- Stony Brook University
- Stony Brook
- USA
| | - Kim Myungwoong
- Department of Materials Science & Engineering
- Cornell University
- Ithaca
- USA
| | - Kao Li
- Department of Materials Science & Chemical Engineering
- Stony Brook University
- Stony Brook
- USA
| | - John Mikhail
- Department of Materials Science & Chemical Engineering
- Stony Brook University
- Stony Brook
- USA
| | - Linxi Zhang
- Department of Materials Science & Chemical Engineering
- Stony Brook University
- Stony Brook
- USA
| | | | - Dilip Gersappe
- Department of Materials Science & Chemical Engineering
- Stony Brook University
- Stony Brook
- USA
| | - Marcia Simon
- Department of Medicine
- Stony Brook University School of Medicine
- Stony Brook
- USA
| | - Christopher Ober
- Department of Materials Science & Engineering
- Cornell University
- Ithaca
- USA
| | - Miriam Rafailovich
- Department of Materials Science & Chemical Engineering
- Stony Brook University
- Stony Brook
- USA
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31
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Pagel M, Beck-Sickinger AG. Multifunctional biomaterial coatings: synthetic challenges and biological activity. Biol Chem 2017; 398:3-22. [DOI: 10.1515/hsz-2016-0204] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2016] [Accepted: 07/29/2016] [Indexed: 12/19/2022]
Abstract
Abstract
A controlled interaction of materials with their surrounding biological environment is of great interest in many fields. Multifunctional coatings aim to provide simultaneous modulation of several biological signals. They can consist of various combinations of bioactive, and bioinert components as well as of reporter molecules to improve cell-material contacts, prevent infections or to analyze biochemical events on the surface. However, specific immobilization and particular assembly of various active molecules are challenging. Herein, an overview of multifunctional coatings for biomaterials is given, focusing on synthetic strategies and the biological benefits by displaying several motifs.
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32
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Li M, Cui F, Li Y, Tao Y, Wang X. Crystalline Regio-/Stereoregular Glycine-Bearing Polymers from ROMP: Effect of Microstructures on Materials Performances. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b02244] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Maosheng Li
- University of Chinese
Academy of Sciences, Beijing 100039, People’s Republic of China
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33
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Wronska MA, O'Connor IB, Tilbury MA, Srivastava A, Wall JG. Adding Functions to Biomaterial Surfaces through Protein Incorporation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:5485-5508. [PMID: 27164952 DOI: 10.1002/adma.201504310] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Revised: 03/16/2016] [Indexed: 06/05/2023]
Abstract
The concept of biomaterials has evolved from one of inert mechanical supports with a long-term, biologically inactive role in the body into complex matrices that exhibit selective cell binding, promote proliferation and matrix production, and may ultimately become replaced by newly generated tissues in vivo. Functionalization of material surfaces with biomolecules is critical to their ability to evade immunorecognition, interact productively with surrounding tissues and extracellular matrix, and avoid bacterial colonization. Antibody molecules and their derived fragments are commonly immobilized on materials to mediate coating with specific cell types in fields such as stent endothelialization and drug delivery. The incorporation of growth factors into biomaterials has found application in promoting and accelerating bone formation in osteogenerative and related applications. Peptides and extracellular matrix proteins can impart biomolecule- and cell-specificities to materials while antimicrobial peptides have found roles in preventing biofilm formation on devices and implants. In this progress report, we detail developments in the use of diverse proteins and peptides to modify the surfaces of hard biomaterials in vivo and in vitro. Chemical approaches to immobilizing active biomolecules are presented, as well as platform technologies for isolation or generation of natural or synthetic molecules suitable for biomaterial functionalization.
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Affiliation(s)
- Małgorzata A Wronska
- Microbiology and Center for Research in Medical Devices (CÚRAM), National University of Ireland, Galway, Ireland
| | - Iain B O'Connor
- Microbiology and Center for Research in Medical Devices (CÚRAM), National University of Ireland, Galway, Ireland
| | - Maura A Tilbury
- Microbiology and Center for Research in Medical Devices (CÚRAM), National University of Ireland, Galway, Ireland
| | - Akshay Srivastava
- Microbiology and Center for Research in Medical Devices (CÚRAM), National University of Ireland, Galway, Ireland
| | - J Gerard Wall
- Microbiology and Center for Research in Medical Devices (CÚRAM), National University of Ireland, Galway, Ireland
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34
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Luo K, Mei T, Li Z, Deng M, Zhang Z, Hou T, Dong S, Xie Z, Xu J, Luo F. A High-Adhesive Lysine-Cyclic RGD Peptide Designed for Selective Cell Retention Technology. Tissue Eng Part C Methods 2016; 22:585-95. [PMID: 27154386 DOI: 10.1089/ten.tec.2015.0517] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Affiliation(s)
- Keyu Luo
- Department of Orthopedics, Southwest Hospital, National & Regional United Engineering Laboratory of Tissue Engineering, The Third Military Medical University, Chongqing, China
- Center of Regenerative and Reconstructive Engineering Technology in Chongqing City, Chongqing, China
- Tissue Engineering Laboratory of Chongqing City, Chongqing, China
| | - Tieniu Mei
- Department of Orthopedics, Southwest Hospital, National & Regional United Engineering Laboratory of Tissue Engineering, The Third Military Medical University, Chongqing, China
- Center of Regenerative and Reconstructive Engineering Technology in Chongqing City, Chongqing, China
- Tissue Engineering Laboratory of Chongqing City, Chongqing, China
| | - Zhiqiang Li
- Department of Orthopedics, Southwest Hospital, National & Regional United Engineering Laboratory of Tissue Engineering, The Third Military Medical University, Chongqing, China
- Center of Regenerative and Reconstructive Engineering Technology in Chongqing City, Chongqing, China
- Tissue Engineering Laboratory of Chongqing City, Chongqing, China
| | - Moyuan Deng
- Department of Orthopedics, Southwest Hospital, National & Regional United Engineering Laboratory of Tissue Engineering, The Third Military Medical University, Chongqing, China
- Center of Regenerative and Reconstructive Engineering Technology in Chongqing City, Chongqing, China
- Tissue Engineering Laboratory of Chongqing City, Chongqing, China
| | - Zehua Zhang
- Department of Orthopedics, Southwest Hospital, National & Regional United Engineering Laboratory of Tissue Engineering, The Third Military Medical University, Chongqing, China
- Center of Regenerative and Reconstructive Engineering Technology in Chongqing City, Chongqing, China
- Tissue Engineering Laboratory of Chongqing City, Chongqing, China
| | - Tianyong Hou
- Department of Orthopedics, Southwest Hospital, National & Regional United Engineering Laboratory of Tissue Engineering, The Third Military Medical University, Chongqing, China
- Center of Regenerative and Reconstructive Engineering Technology in Chongqing City, Chongqing, China
- Tissue Engineering Laboratory of Chongqing City, Chongqing, China
| | - Shiwu Dong
- Department of Orthopedics, Southwest Hospital, National & Regional United Engineering Laboratory of Tissue Engineering, The Third Military Medical University, Chongqing, China
- Department of Biomedical Materials Science, College of Biomedical Engineering, The Third Military Medical University, Chongqing, China
| | - Zhao Xie
- Department of Orthopedics, Southwest Hospital, National & Regional United Engineering Laboratory of Tissue Engineering, The Third Military Medical University, Chongqing, China
- Center of Regenerative and Reconstructive Engineering Technology in Chongqing City, Chongqing, China
- Tissue Engineering Laboratory of Chongqing City, Chongqing, China
| | - Jianzhong Xu
- Department of Orthopedics, Southwest Hospital, National & Regional United Engineering Laboratory of Tissue Engineering, The Third Military Medical University, Chongqing, China
- Center of Regenerative and Reconstructive Engineering Technology in Chongqing City, Chongqing, China
- Tissue Engineering Laboratory of Chongqing City, Chongqing, China
| | - Fei Luo
- Department of Orthopedics, Southwest Hospital, National & Regional United Engineering Laboratory of Tissue Engineering, The Third Military Medical University, Chongqing, China
- Center of Regenerative and Reconstructive Engineering Technology in Chongqing City, Chongqing, China
- Tissue Engineering Laboratory of Chongqing City, Chongqing, China
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35
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Feng K, Xie N, Chen B, Tung CH, Wu LZ. Modular Design of Poly(norbornenes) for Organelle-Specific Imaging in Tumor Cells. Biomacromolecules 2016; 17:538-45. [PMID: 26762279 DOI: 10.1021/acs.biomac.5b01450] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Through modular ROMP (ring-opening metathesis polymerization) directly from monomeric norbornenes of bioactive peptides, rhodamine B chromophore, and PEG solubilizer, we designed and synthesized a series of water-soluble poly(norbornenes) with organelle-specific imaging capability in tumor cells. For the selection of FxrFxK, TAT, and SV40 peptide sequences, these fluorescence probes exhibited different targeting specificity toward mitochondria, lysosome, and nucleolus, respectively, based on the same poly(norbornene) backbonds. More importantly, the ROMP strategy enables selective combination from various monomers and allows programmable biofunctionalization via peptide sequence permutations, which would greatly extend the biomedical applications such as imaging, diagnosis, and therapy for these synthetic polymers.
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Affiliation(s)
- Ke Feng
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences , Beijing 100190, People's Republic of China
| | - Nan Xie
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs, Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China, Beijing Laboratory of Biomedical Materials, School of Chemical Biology and Pharmaceutical Sciences, Capital Medical University , Beijing 100069, People's Republic of China
| | - Bin Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences , Beijing 100190, People's Republic of China
| | - Chen-Ho Tung
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences , Beijing 100190, People's Republic of China
| | - Li-Zhu Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences , Beijing 100190, People's Republic of China
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36
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Xie N, Feng K, Chen B, Tung CH, Wu LZ. Switchable two-photon imaging of RGD-functionalized polynorbornenes with enhanced cellular uptake in living cells. NEW J CHEM 2016. [DOI: 10.1039/c6nj00029k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Two-photon imaging polynorbornenes were fabricated directly from photochromic spiropyran, RGD peptides and hydrophilic PEG monomers via modular ROMP.
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Affiliation(s)
- Nan Xie
- Beijing Area Major Laboratory of Peptide and Small Molecular Drugs
- Engineering Research Center of Endogenous Prophylactic of Ministry of Education of China
- Beijing Laboratory of Biomedical Materials
- School of Chemical Biology and Pharmaceutical Sciences
- Capital Medical University
| | - Ke Feng
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences
- Beijing 100190
- P. R. China
| | - Bin Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences
- Beijing 100190
- P. R. China
| | - Chen-Ho Tung
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences
- Beijing 100190
- P. R. China
| | - Li-Zhu Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials
- Technical Institute of Physics and Chemistry, The Chinese Academy of Sciences
- Beijing 100190
- P. R. China
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37
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Saha S, Ginzburg Y, Rozenberg I, Iliashevsky O, Ben-Asuly A, Gabriel Lemcoff N. Cross-linked ROMP polymers based on odourless dicyclopentadiene derivatives. Polym Chem 2016. [DOI: 10.1039/c6py00378h] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydroxydicyclopentadiene (DCPD-OH) and some ester and ether derivatives were synthesized and used for the first time as ring-opening metathesis polymerization (ROMP) monomers to create cross-linked thermoset polymers with Ru-catalysts.
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Affiliation(s)
- Sukdeb Saha
- Department of Chemistry
- Ben-Gurion University of the Negev
- Beer-Sheva 84105
- Israel
| | - Yakov Ginzburg
- Department of Chemistry
- Ben-Gurion University of the Negev
- Beer-Sheva 84105
- Israel
| | - Illya Rozenberg
- Department of Chemistry
- Ben-Gurion University of the Negev
- Beer-Sheva 84105
- Israel
| | - Olga Iliashevsky
- Department of Chemical Engineering
- Ben-Gurion University of the Negev
- Beer-Sheva 84105
- Israel
| | - Amos Ben-Asuly
- Department of Chemistry
- Ben-Gurion University of the Negev
- Beer-Sheva 84105
- Israel
| | - N. Gabriel Lemcoff
- Department of Chemistry
- Ben-Gurion University of the Negev
- Beer-Sheva 84105
- Israel
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38
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Anju T, Preetha R, Shunmugam R, Mane SR, Arockiaraj J, Kumaresan V. Norbornene derived nanocarrier reduces isoniazid mediated liver toxicity: assessment in HepG2 cell line and zebrafish model. RSC Adv 2016; 6:114927-114936. [DOI: 10.1039/c6ra23557c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2023] Open
Abstract
The aim of this study was to investigate the protective effect of the stimuli-responsive norbornene-based nanocarrier complex of isoniazid, compared to pure isoniazid, on liver cells, byin vivoandin vitromethods.
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Affiliation(s)
- Thangam Anju
- Department of Biotechnology
- School of Bioengineering
- SRM University
- Chennai
- India
| | - Radhakrishnan Preetha
- Department of Food and Process Engineering
- School of Bioengineering
- SRM University
- 603203 Chennai
- India
| | - Raja Shunmugam
- Polymer Research Centre
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata (IISER K)
- India
| | - Shivshankar R. Mane
- Polymer Research Centre
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Kolkata (IISER K)
- India
| | - Jesu Arockiaraj
- Division of Fisheries Biotechnology & Molecular Biology
- Department of Biotechnology
- Faculty of Science and Humanities
- SRM University
- Chennai
| | - Venkatesh Kumaresan
- Division of Fisheries Biotechnology & Molecular Biology
- Department of Biotechnology
- Faculty of Science and Humanities
- SRM University
- Chennai
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39
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Du X, Zhou J, Shi J, Xu B. Supramolecular Hydrogelators and Hydrogels: From Soft Matter to Molecular Biomaterials. Chem Rev 2015; 115:13165-307. [PMID: 26646318 PMCID: PMC4936198 DOI: 10.1021/acs.chemrev.5b00299] [Citation(s) in RCA: 1266] [Impact Index Per Article: 140.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2015] [Indexed: 12/19/2022]
Abstract
In this review we intend to provide a relatively comprehensive summary of the work of supramolecular hydrogelators after 2004 and to put emphasis particularly on the applications of supramolecular hydrogels/hydrogelators as molecular biomaterials. After a brief introduction of methods for generating supramolecular hydrogels, we discuss supramolecular hydrogelators on the basis of their categories, such as small organic molecules, coordination complexes, peptides, nucleobases, and saccharides. Following molecular design, we focus on various potential applications of supramolecular hydrogels as molecular biomaterials, classified by their applications in cell cultures, tissue engineering, cell behavior, imaging, and unique applications of hydrogelators. Particularly, we discuss the applications of supramolecular hydrogelators after they form supramolecular assemblies but prior to reaching the critical gelation concentration because this subject is less explored but may hold equally great promise for helping address fundamental questions about the mechanisms or the consequences of the self-assembly of molecules, including low molecular weight ones. Finally, we provide a perspective on supramolecular hydrogelators. We hope that this review will serve as an updated introduction and reference for researchers who are interested in exploring supramolecular hydrogelators as molecular biomaterials for addressing the societal needs at various frontiers.
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Affiliation(s)
- Xuewen Du
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts 02454, United States
| | - Jie Zhou
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts 02454, United States
| | - Junfeng Shi
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts 02454, United States
| | - Bing Xu
- Department of Chemistry, Brandeis University, 415 South Street, Waltham, Massachusetts 02454, United States
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40
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Blum AP, Kammeyer JK, Gianneschi NC. Activating Peptides for Cellular Uptake via Polymerization into High Density Brushes. Chem Sci 2015; 7:989-994. [PMID: 26925209 PMCID: PMC4763988 DOI: 10.1039/c5sc03417e] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The utility of peptide therapeutics is thwarted by an inability to enter cells, preventing access to crucial intracellular targets. Herein, we describe a simple and potentially widely applicable solution involving the polymerization of a minimally modified amino acid sequence into a high density brush polymer. Specifically, non-cell penetrating peptides can be rendered competent for cell entry by first including a single Arg or Lys in their amino acid sequence, if one is not already present, along with a norbornenyl unit. This modified monomer is then polymerized by ring opening metathesis polymerization (ROMP). To demonstrate the utility of this strategy, a known therapeutic peptide, which does not penetrate cells on its own, was polymerized. The resulting polymer proficiently entered cells while maintaining its intracellular function. We anticipate that this methodology will find broad use in medicine, increasing or enabling the in vivo efficacy of promising peptide therapeutics.
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Affiliation(s)
- Angela P Blum
- Department of Chemistry & Biochemistry, University of California-San Diego, La Jolla, California 92093, United States
| | - Jacquelin K Kammeyer
- Department of Chemistry & Biochemistry, University of California-San Diego, La Jolla, California 92093, United States
| | - Nathan C Gianneschi
- Department of Chemistry & Biochemistry, University of California-San Diego, La Jolla, California 92093, United States
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41
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Kelly P, Anand P, Uvaydov A, Chakravartula S, Sherpa C, Pires E, O'Neil A, Douglas T, Holford M. Developing a Dissociative Nanocontainer for Peptide Drug Delivery. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2015; 12:12543-55. [PMID: 26473893 PMCID: PMC4626985 DOI: 10.3390/ijerph121012543] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Revised: 09/23/2015] [Accepted: 09/28/2015] [Indexed: 12/25/2022]
Abstract
The potency, selectivity, and decreased side effects of bioactive peptides have propelled these agents to the forefront of pharmacological research. Peptides are especially promising for the treatment of neurological disorders and pain. However, delivery of peptide therapeutics often requires invasive techniques, which is a major obstacle to their widespread application. We have developed a tailored peptide drug delivery system in which the viral capsid of P22 bacteriophage is modified to serve as a tunable nanocontainer for the packaging and controlled release of bioactive peptides. Recent efforts have demonstrated that P22 nanocontainers can effectively encapsulate analgesic peptides and translocate them across blood-brain-barrier (BBB) models. However, release of encapsulated peptides at their target site remains a challenge. Here a Ring Opening Metathesis Polymerization (ROMP) reaction is applied to trigger P22 nanocontainer disassembly under physiological conditions. Specifically, the ROMP substrate norbornene (5-Norbornene-2-carboxylic acid) is conjugated to the exterior of a loaded P22 nanocontainer and Grubbs II Catalyst is used to trigger the polymerization reaction leading to nanocontainer disassembly. Our results demonstrate initial attempts to characterize the ROMP-triggered release of cargo peptides from P22 nanocontainers. This work provides proof-of-concept for the construction of a triggerable peptide drug delivery system using viral nanocontainers.
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Affiliation(s)
- Patrick Kelly
- Hunter College and The Graduate Center, City University of New York, Belfer Research Building, 413 E. 69th Street, New York, NY 10021, USA.
| | - Prachi Anand
- Hunter College and The Graduate Center, City University of New York, Belfer Research Building, 413 E. 69th Street, New York, NY 10021, USA.
| | - Alexander Uvaydov
- Hunter College and The Graduate Center, City University of New York, Belfer Research Building, 413 E. 69th Street, New York, NY 10021, USA.
| | - Srinivas Chakravartula
- Hunter College and The Graduate Center, City University of New York, Belfer Research Building, 413 E. 69th Street, New York, NY 10021, USA.
| | - Chhime Sherpa
- Hunter College and The Graduate Center, City University of New York, Belfer Research Building, 413 E. 69th Street, New York, NY 10021, USA.
| | - Elena Pires
- Hunter College and The Graduate Center, City University of New York, Belfer Research Building, 413 E. 69th Street, New York, NY 10021, USA.
| | - Alison O'Neil
- Stem Cell and Regenerative Biology Department, Harvard University, 7 Divinity Ave, Cambridge, MA 02138, USA.
| | - Trevor Douglas
- Department of Chemistry, Indiana University, 800 E. Kirkwood Ave., Bloomington, IN 47405, USA.
| | - Mandë Holford
- Hunter College and The Graduate Center, City University of New York, Belfer Research Building, 413 E. 69th Street, New York, NY 10021, USA.
- The American Museum of Natural History, Central Park West & 79th Street, New York, NY 10024, USA.
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42
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Huo P, Liu W, He X, Mei G. Vinylic copolymerization of norbornene and higher 1-alkene with three-dimensional geometry binickel catalyst. JOURNAL OF POLYMER RESEARCH 2015. [DOI: 10.1007/s10965-015-0835-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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43
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Han S, Ham TR, Haque S, Sparks JL, Saul JM. Alkylation of human hair keratin for tunable hydrogel erosion and drug delivery in tissue engineering applications. Acta Biomater 2015; 23:201-213. [PMID: 25997587 PMCID: PMC4522204 DOI: 10.1016/j.actbio.2015.05.013] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Revised: 05/08/2015] [Accepted: 05/12/2015] [Indexed: 12/11/2022]
Abstract
Polymeric biomaterials that provide a matrix for cell attachment and proliferation while achieving delivery of therapeutic agents are an important component of tissue engineering and regenerative medicine strategies. Keratins are a class of proteins that have received attention for numerous tissue engineering applications because, like other natural polymers, they promote favorable cell interactions and have non-toxic degradation products. Keratins can be extracted from various sources including human hair, and they are characterized by a high percentage of cysteine residues. Thiol groups on reductively extracted keratin (kerateine) form disulfide bonds, providing a more stable cross-linked hydrogel network than oxidatively extracted keratin (keratose) that cannot form disulfide crosslinks. We hypothesized that an iodoacetamide alkylation (or "capping") of cysteine thiol groups on the kerateine form of keratin could be used as a simple method to modulate the levels of disulfide crosslinking in keratin hydrogels, providing tunable rates of gel erosion and therapeutic agent release. After alkylation, the alkylated kerateines still formed hydrogels and the alkylation led to changes in the mechanical and visco-elastic properties of the materials consistent with loss of disulfide crosslinking. The alkylated kerateines did not lead to toxicity in MC3T3-E1 pre-osteoblasts. These cells adhered to keratin at levels comparable to fibronectin and greater than collagen. Alkylated kerateine gels eroded more rapidly than non-alkylated kerateine and this control over erosion led to tunable rates of delivery of rhBMP-2, rhIGF-1, and ciprofloxacin. These results demonstrate that alkylation of kerateine cysteine residues provides a cell-compatible approach to tune rates of hydrogel erosion and therapeutic agent release within the context of a naturally-derived polymeric system.
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Affiliation(s)
- Sangheon Han
- Department of Chemical, Paper and Biomedical Engineering, Miami University, 650 E. High Street, Oxford, OH 45056, USA
| | - Trevor R Ham
- Department of Chemical, Paper and Biomedical Engineering, Miami University, 650 E. High Street, Oxford, OH 45056, USA; Department of Biomedical Engineering, University of Akron, Auburn Science and Engineering Center 275, West Tower, Akron, OH 44325, USA
| | - Salma Haque
- Department of Chemical, Paper and Biomedical Engineering, Miami University, 650 E. High Street, Oxford, OH 45056, USA
| | - Jessica L Sparks
- Department of Chemical, Paper and Biomedical Engineering, Miami University, 650 E. High Street, Oxford, OH 45056, USA
| | - Justin M Saul
- Department of Chemical, Paper and Biomedical Engineering, Miami University, 650 E. High Street, Oxford, OH 45056, USA.
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An analysis of the structural, thermal and optical characteristics as well as the electrical resistivity of tert-butyldiphenylsilyl substituted poly(norbornene-dicarboximide)s. POLYMER 2015. [DOI: 10.1016/j.polymer.2014.11.043] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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45
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Hodge P, Chakiri A. Entropically-driven ring-opening metathesis polymerization (ED-ROMP) of macrocyclic olefins prepared from deoxycholic acid to give functionalized polymers. Polym Chem 2015. [DOI: 10.1039/c5py00272a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The macrocycles shown were prepared, then polymerized and copolymerized by ROMP. This gave polymers with free OH or free CO2R groups. Treatment of the polymers having R =t-Bu with trifluoroacetic acid gave polymers with free CO2H groups.
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Affiliation(s)
- Philip Hodge
- Department of Chemistry
- University of Manchester
- Manchester
- UK
| | - Abdel Chakiri
- Department of Chemistry
- University of Manchester
- Manchester
- UK
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Blum AP, Kammeyer JK, Yin J, Crystal DT, Rush AM, Gilson MK, Gianneschi NC. Peptides displayed as high density brush polymers resist proteolysis and retain bioactivity. J Am Chem Soc 2014; 136:15422-37. [PMID: 25314576 PMCID: PMC4227725 DOI: 10.1021/ja5088216] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
We describe a strategy for rendering peptides resistant to proteolysis by formulating them as high-density brush polymers. The utility of this approach is demonstrated by polymerizing well-established cell-penetrating peptides (CPPs) and showing that the resulting polymers are not only resistant to proteolysis but also maintain their ability to enter cells. The scope of this design concept is explored by studying the proteolytic resistance of brush polymers composed of peptides that are substrates for either thrombin or a metalloprotease. Finally, we demonstrate that the proteolytic susceptibility of peptide brush polymers can be tuned by adjusting the density of the polymer brush and offer in silico models to rationalize this finding. We contend that this strategy offers a plausible method of preparing peptides for in vivo use, where rapid digestion by proteases has traditionally restricted their utility.
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Affiliation(s)
- Angela P Blum
- Department of Chemistry & Biochemistry, ‡Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego , La Jolla, California 92093, United States
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Yin WN, Cao FY, Han K, Zeng X, Zhuo RX, Zhang XZ. The synergistic effect of a BMP-7 derived peptide and cyclic RGD in regulating differentiation behaviours of mesenchymal stem cells. J Mater Chem B 2014; 2:8434-8440. [DOI: 10.1039/c4tb01548g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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48
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Xie N, Feng K, Chen B, Zhao M, Zhang LP, Tung CH, Wu LZ, Peng S. A modular designed copolymer with anti-thrombotic activity and imaging capability. Chem Commun (Camb) 2014; 50:9539-42. [PMID: 25012142 DOI: 10.1039/c4cc04649h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Through a modular ROMP (ring-opening metathesis polymerization) strategy, a random copolymer with anti-thrombotic activity and imaging capability has been constructed from RGD, rhodamine B and PEG modified norbornene monomers. As we expected, these tri-component polynorbornenes exhibit significant enhancement in anti-thrombotic efficacy and bioavailability in vivo.
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Affiliation(s)
- Nan Xie
- School of Chemical Biology and Pharmaceutical Sciences, Capital Medical University, Beijing 100069, P. R. China.
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49
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Herndon JW. The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2012. Coord Chem Rev 2014. [DOI: 10.1016/j.ccr.2014.02.026] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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50
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The preparation of well-controlled poly(N-cyclohexyl-exo-norbornene-5,6-dicarboximide) polymers. Polym J 2014. [DOI: 10.1038/pj.2014.26] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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