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Branković M, Zivic F, Grujovic N, Stojadinovic I, Milenkovic S, Kotorcevic N. Review of Spider Silk Applications in Biomedical and Tissue Engineering. Biomimetics (Basel) 2024; 9:169. [PMID: 38534854 DOI: 10.3390/biomimetics9030169] [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: 01/15/2024] [Revised: 03/01/2024] [Accepted: 03/04/2024] [Indexed: 03/28/2024] Open
Abstract
This review will present the latest research related to the production and application of spider silk and silk-based materials in reconstructive and regenerative medicine and tissue engineering, with a focus on musculoskeletal tissues, and including skin regeneration and tissue repair of bone and cartilage, ligaments, muscle tissue, peripheral nerves, and artificial blood vessels. Natural spider silk synthesis is reviewed, and the further recombinant production of spider silk proteins. Research insights into possible spider silk structures, like fibers (1D), coatings (2D), and 3D constructs, including porous structures, hydrogels, and organ-on-chip designs, have been reviewed considering a design of bioactive materials for smart medical implants and drug delivery systems. Silk is one of the toughest natural materials, with high strain at failure and mechanical strength. Novel biomaterials with silk fibroin can mimic the tissue structure and promote regeneration and new tissue growth. Silk proteins are important in designing tissue-on-chip or organ-on-chip technologies and micro devices for the precise engineering of artificial tissues and organs, disease modeling, and the further selection of adequate medical treatments. Recent research indicates that silk (films, hydrogels, capsules, or liposomes coated with silk proteins) has the potential to provide controlled drug release at the target destination. However, even with clear advantages, there are still challenges that need further research, including clinical trials.
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Affiliation(s)
- Marija Branković
- Institute for Information Technologies, University of Kragujevac, Jovana Cvijića bb, 34000 Kragujevac, Serbia
- Faculty of Engineering, University of Kragujevac, Liceja Knezevine Srbije 1A, 34000 Kragujevac, Serbia
| | - Fatima Zivic
- Faculty of Engineering, University of Kragujevac, Liceja Knezevine Srbije 1A, 34000 Kragujevac, Serbia
| | - Nenad Grujovic
- Faculty of Engineering, University of Kragujevac, Liceja Knezevine Srbije 1A, 34000 Kragujevac, Serbia
| | - Ivan Stojadinovic
- Clinic for Orthopaedics and Traumatology, University Clinical Center, Zmaj Jovina 30, 34000 Kragujevac, Serbia
- Faculty of Medical Sciences, University of Kragujevac, Svetozara Markovića 69, 34000 Kragujevac, Serbia
| | - Strahinja Milenkovic
- Faculty of Engineering, University of Kragujevac, Liceja Knezevine Srbije 1A, 34000 Kragujevac, Serbia
| | - Nikola Kotorcevic
- Faculty of Engineering, University of Kragujevac, Liceja Knezevine Srbije 1A, 34000 Kragujevac, Serbia
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Eweje F, Walsh ML, Ahmad K, Ibrahim V, Alrefai A, Chen J, Chaikof EL. Protein-based nanoparticles for therapeutic nucleic acid delivery. Biomaterials 2024; 305:122464. [PMID: 38181574 PMCID: PMC10872380 DOI: 10.1016/j.biomaterials.2023.122464] [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: 09/23/2023] [Revised: 12/25/2023] [Accepted: 12/31/2023] [Indexed: 01/07/2024]
Abstract
To realize the full potential of emerging nucleic acid therapies, there is a need for effective delivery agents to transport cargo to cells of interest. Protein materials exhibit several unique properties, including biodegradability, biocompatibility, ease of functionalization via recombinant and chemical modifications, among other features, which establish a promising basis for therapeutic nucleic acid delivery systems. In this review, we highlight progress made in the use of non-viral protein-based nanoparticles for nucleic acid delivery in vitro and in vivo, while elaborating on key physicochemical properties that have enabled the use of these materials for nanoparticle formulation and drug delivery. To conclude, we comment on the prospects and unresolved challenges associated with the translation of protein-based nucleic acid delivery systems for therapeutic applications.
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Affiliation(s)
- Feyisayo Eweje
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, 02215, USA; Harvard and MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA; Harvard/MIT MD-PhD Program, Boston, MA, USA, 02115; Wyss Institute of Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
| | - Michelle L Walsh
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, 02215, USA; Harvard and MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA; Harvard/MIT MD-PhD Program, Boston, MA, USA, 02115
| | - Kiran Ahmad
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, 02215, USA
| | - Vanessa Ibrahim
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, 02215, USA
| | - Assma Alrefai
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, 02215, USA
| | - Jiaxuan Chen
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, 02215, USA; Wyss Institute of Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA.
| | - Elliot L Chaikof
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, 02215, USA; Wyss Institute of Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA.
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Trossmann VT, Lentz S, Scheibel T. Factors Influencing Properties of Spider Silk Coatings and Their Interactions within a Biological Environment. J Funct Biomater 2023; 14:434. [PMID: 37623678 PMCID: PMC10455157 DOI: 10.3390/jfb14080434] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 08/10/2023] [Accepted: 08/16/2023] [Indexed: 08/26/2023] Open
Abstract
Biomaterials are an indispensable part of biomedical research. However, although many materials display suitable application-specific properties, they provide only poor biocompatibility when implanted into a human/animal body leading to inflammation and rejection reactions. Coatings made of spider silk proteins are promising alternatives for various applications since they are biocompatible, non-toxic and anti-inflammatory. Nevertheless, the biological response toward a spider silk coating cannot be generalized. The properties of spider silk coatings are influenced by many factors, including silk source, solvent, the substrate to be coated, pre- and post-treatments and the processing technique. All these factors consequently affect the biological response of the environment and the putative application of the appropriate silk coating. Here, we summarize recently identified factors to be considered before spider silk processing as well as physicochemical characterization methods. Furthermore, we highlight important results of biological evaluations to emphasize the importance of adjustability and adaption to a specific application. Finally, we provide an experimental matrix of parameters to be considered for a specific application and a guided biological response as exemplarily tested with two different fibroblast cell lines.
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Affiliation(s)
- Vanessa T. Trossmann
- Chair of Biomaterials, Faculty of Engineering Science, University of Bayreuth, Prof.-Rüdiger-Bormann-Straße 1, 95447 Bayreuth, Germany; (V.T.T.); (S.L.)
| | - Sarah Lentz
- Chair of Biomaterials, Faculty of Engineering Science, University of Bayreuth, Prof.-Rüdiger-Bormann-Straße 1, 95447 Bayreuth, Germany; (V.T.T.); (S.L.)
| | - Thomas Scheibel
- Chair of Biomaterials, Faculty of Engineering Science, University of Bayreuth, Prof.-Rüdiger-Bormann-Straße 1, 95447 Bayreuth, Germany; (V.T.T.); (S.L.)
- Bayreuth Center for Colloids and Interfaces (BZKG), University of Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
- Bavarian Polymer Institute (BPI), University of Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
- Bayreuth Center for Molecular Biosciences (BZMB), University of Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
- Bayreuth Materials Center (BayMAT), University of Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
- Faculty of Medicine, University of Würzburg, Pleicherwall 2, 97070 Würzburg, Germany
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Gueta O, Amiram M. Expanding the chemical repertoire of protein-based polymers for drug-delivery applications. Adv Drug Deliv Rev 2022; 190:114460. [PMID: 36030987 DOI: 10.1016/j.addr.2022.114460] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 07/12/2022] [Indexed: 01/24/2023]
Abstract
Expanding the chemical repertoire of natural and artificial protein-based polymers (PBPs) can enable the production of sequence-defined, yet chemically diverse, biopolymers with customized or new properties that cannot be accessed in PBPs composed of only natural amino acids. Various approaches can enable the expansion of the chemical repertoire of PBPs, including chemical and enzymatic treatments or the incorporation of unnatural amino acids. These techniques are employed to install a wide variety of chemical groups-such as bio-orthogonally reactive, cross-linkable, post-translation modifications, and environmentally responsive groups-which, in turn, can facilitate the design of customized PBP-based drug-delivery systems with modified, fine-tuned, or entirely new properties and functions. Here, we detail the existing and emerging technologies for expanding the chemical repertoire of PBPs and review several chemical groups that either demonstrate or are anticipated to show potential in the design of PBP-based drug delivery systems. Finally, we provide our perspective on the remaining challenges and future directions in this field.
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Affiliation(s)
- Osher Gueta
- The Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 8410501, Israel
| | - Miriam Amiram
- The Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, P.O. Box 653, Beer-Sheva 8410501, Israel.
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Hajebi S, Yousefiasl S, Rahimmanesh I, Dahim A, Ahmadi S, Kadumudi FB, Rahgozar N, Amani S, Kumar A, Kamrani E, Rabiee M, Borzacchiello A, Wang X, Rabiee N, Dolatshahi-Pirouz A, Makvandi P. Genetically Engineered Viral Vectors and Organic-Based Non-Viral Nanocarriers for Drug Delivery Applications. Adv Healthc Mater 2022; 11:e2201583. [PMID: 35916145 DOI: 10.1002/adhm.202201583] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Indexed: 01/28/2023]
Abstract
Conventional drug delivery systems are challenged by concerns related to systemic toxicity, repetitive doses, drug concentrations fluctuation, and adverse effects. Various drug delivery systems are developed to overcome these limitations. Nanomaterials are employed in a variety of biomedical applications such as therapeutics delivery, cancer therapy, and tissue engineering. Physiochemical nanoparticle assembly techniques involve the application of solvents and potentially harmful chemicals, commonly at high temperatures. Genetically engineered organisms have the potential to be used as promising candidates for greener, efficient, and more adaptable platforms for the synthesis and assembly of nanomaterials. Genetically engineered carriers are precisely designed and constructed in shape and size, enabling precise control over drug attachment sites. The high accuracy of these novel advanced materials, biocompatibility, and stimuli-responsiveness, elucidate their emerging application in controlled drug delivery. The current article represents the research progress in developing various genetically engineered carriers. Organic-based nanoparticles including cellulose, collagen, silk-like polymers, elastin-like protein, silk-elastin-like protein, and inorganic-based nanoparticles are discussed in detail. Afterward, viral-based carriers are classified, and their potential for targeted therapeutics delivery is highlighted. Finally, the challenges and prospects of these delivery systems are concluded.
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Affiliation(s)
- Sakineh Hajebi
- Department of Polymer Engineering, Sahand University of Technology, Tabriz, 51335-1996, Iran
- Institute of Polymeric Materials, Sahand University of Technology, Tabriz, 51335-1996, Iran
| | - Satar Yousefiasl
- School of Dentistry, Hamadan University of Medical Sciences, Hamadan, 6517838736, Iran
| | - Ilnaz Rahimmanesh
- Applied Physiology Research Center, Isfahan Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, 8174673461, Iran
| | - Alireza Dahim
- Department of Anesthesia, Jundishapur University of Medical Sciences, Ahvaz, 61357-15794, Iran
| | - Sepideh Ahmadi
- Department of Biology, Faculty of Sciences, University of Zabol, Sistan and Baluchestan, Zabol, 98613-35856, Iran
| | - Firoz Babu Kadumudi
- Department of Health Technology, Technical University of Denmark, Kongens Lyngby, 2800, Denmark
| | - Nikta Rahgozar
- Department of Chemistry, Amirkabir University of Technology, Tehran, 15875-4413, Iran
| | - Sanaz Amani
- Department of Chemical Engineering, Sahand University of Technology, Tabriz, 51335-1996, Iran
| | - Arun Kumar
- Chitkara College of Pharmacy, Chitkara University, Himachal Pradesh, 174 103, India
| | - Ehsan Kamrani
- Harvard-MIT Health Science and Technology, Cambridge, MA, 02139, USA
- Wellman Center for Photomedicine, Harvard Medical School, Boston, MA, 02139, USA
| | - Mohammad Rabiee
- Biomaterials Group, Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, 15875-4413, Iran
| | - Assunta Borzacchiello
- Institute for Polymers, Composites and Biomaterials, National Research Council, IPCB-CNR, Naples, 80125, Italy
| | - Xiangdong Wang
- Department of Pulmonary and Critical Care Medicine, Zhongshan Hospital, Fudan University Shanghai Medical College, Shanghai, 200032, China
| | - Navid Rabiee
- School of Engineering, Macquarie University, Sydney, NSW, 2109, Australia
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk, 37673, South Korea
| | | | - Pooyan Makvandi
- Centre for Materials Interfaces, Istituto Italiano di Tecnologia, Pontedera, Pisa, 56025, Italy
- The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou, Zhejiang, 324000, China
- School of Chemistry, Damghan University, Damghan, 36716-41167, Iran
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Florczak A, Deptuch T, Kucharczyk K, Dams-Kozlowska H. Systemic and Local Silk-Based Drug Delivery Systems for Cancer Therapy. Cancers (Basel) 2021; 13:5389. [PMID: 34771557 PMCID: PMC8582423 DOI: 10.3390/cancers13215389] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 10/22/2021] [Accepted: 10/25/2021] [Indexed: 12/26/2022] Open
Abstract
For years, surgery, radiotherapy, and chemotherapy have been the gold standards to treat cancer, although continuing research has sought a more effective approach. While advances can be seen in the development of anticancer drugs, the tools that can improve their delivery remain a challenge. As anticancer drugs can affect the entire body, the control of their distribution is desirable to prevent systemic toxicity. The application of a suitable drug delivery platform may resolve this problem. Among other materials, silks offer many advantageous properties, including biodegradability, biocompatibility, and the possibility of obtaining a variety of morphological structures. These characteristics allow the exploration of silk for biomedical applications and as a platform for drug delivery. We have reviewed silk structures that can be used for local and systemic drug delivery for use in cancer therapy. After a short description of the most studied silks, we discuss the advantages of using silk for drug delivery. The tables summarize the descriptions of silk structures for the local and systemic transport of anticancer drugs. The most popular techniques for silk particle preparation are presented. Further prospects for using silk as a drug carrier are considered. The application of various silk biomaterials can improve cancer treatment by the controllable delivery of chemotherapeutics, immunotherapeutics, photosensitizers, hormones, nucleotherapeutics, targeted therapeutics (e.g., kinase inhibitors), and inorganic nanoparticles, among others.
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Affiliation(s)
- Anna Florczak
- Department of Cancer Immunology, Poznan University of Medical Sciences, 61-866 Poznan, Poland; (A.F.); (T.D.); (K.K.)
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, 61-866 Poznan, Poland
| | - Tomasz Deptuch
- Department of Cancer Immunology, Poznan University of Medical Sciences, 61-866 Poznan, Poland; (A.F.); (T.D.); (K.K.)
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, 61-866 Poznan, Poland
| | - Kamil Kucharczyk
- Department of Cancer Immunology, Poznan University of Medical Sciences, 61-866 Poznan, Poland; (A.F.); (T.D.); (K.K.)
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, 61-866 Poznan, Poland
| | - Hanna Dams-Kozlowska
- Department of Cancer Immunology, Poznan University of Medical Sciences, 61-866 Poznan, Poland; (A.F.); (T.D.); (K.K.)
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, 61-866 Poznan, Poland
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Kucharczyk K, Kaczmarek K, Jozefczak A, Slachcinski M, Mackiewicz A, Dams-Kozlowska H. Hyperthermia treatment of cancer cells by the application of targeted silk/iron oxide composite spheres. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 120:111654. [PMID: 33545822 DOI: 10.1016/j.msec.2020.111654] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 08/21/2020] [Accepted: 10/14/2020] [Indexed: 10/23/2022]
Abstract
Magnetic iron oxide nanoparticles (IONPs) are one of the most extensively studied materials for theranostic applications. IONPs can be used for magnetic resonance imaging (MRI), delivery of therapeutics, and hyperthermia treatment. Silk is a biocompatible material and can be used for biomedical applications. Previously, we produced spheres made of H2.1MS1 bioengineered silk that specifically carried a drug to the Her2-overexpressing cancer cells. To confer biocompatibility and targeting properties to IONPs, we blended these particles with bioengineered spider silks. Three bioengineered silks (MS1Fe1, MS1Fe2, and MS1Fe1Fe2) functionalized with the adhesion peptides F1 and F2, were constructed and investigated to form the composite spheres with IONPs carrying a positive or negative charge. Due to its highest IONP content, MS1Fe1 silk was used to produce spheres from the H2.1MS1:MS1Fe silk blend to obtain a carrier with cell-targeting properties. Composite H2.1MS1:MS1Fe1/IONP spheres made of silks blended at different ratios were obtained. Although the increased content of MS1Fe1 silk in particles resulted in an increased affinity of the spheres to IONPs, it decreased the binding of the composite particles to cancer cells. The H2.1MS1:MS1Fe1 particles prepared at a ratio of 8:2 and loaded with IONPs exhibited the ability to bind to the targeted cancer cells similar to the control spheres without IONPs. Moreover, when exposed to the alternating magnetic field, these particles generated 2.5 times higher heat. They caused an almost three times higher percentage of apoptosis in cancer cells than the control particles. The blending of silks enabled the generation of cancer-targeting spheres with a high affinity for iron oxide nanoparticles, which can be used for anti-cancer hyperthermia therapy.
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Affiliation(s)
- Kamil Kucharczyk
- Chair of Medical Biotechnology, Poznan University of Medical Sciences, Poland; Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, Poznan, Poland
| | - Katarzyna Kaczmarek
- Chair of Acoustics, Faculty of Physics, Adam Mickiewicz University, Poznan, Poland
| | - Arkadiusz Jozefczak
- Chair of Acoustics, Faculty of Physics, Adam Mickiewicz University, Poznan, Poland
| | - Mariusz Slachcinski
- Faculty of Chemical Technology, Institute of Chemistry and Technical Electrochemistry, Poznan University of Technology, Poznan, Poland
| | - Andrzej Mackiewicz
- Chair of Medical Biotechnology, Poznan University of Medical Sciences, Poland; Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, Poznan, Poland
| | - Hanna Dams-Kozlowska
- Chair of Medical Biotechnology, Poznan University of Medical Sciences, Poland; Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, Poznan, Poland.
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Florczak A, Grzechowiak I, Deptuch T, Kucharczyk K, Kaminska A, Dams-Kozlowska H. Silk Particles as Carriers of Therapeutic Molecules for Cancer Treatment. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E4946. [PMID: 33158060 PMCID: PMC7663281 DOI: 10.3390/ma13214946] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 10/30/2020] [Accepted: 10/31/2020] [Indexed: 12/15/2022]
Abstract
Although progress is observed in cancer treatment, this disease continues to be the second leading cause of death worldwide. The current understanding of cancer indicates that treating cancer should not be limited to killing cancer cells alone, but that the target is the complex tumor microenvironment (TME). The application of nanoparticle-based drug delivery systems (DDS) can not only target cancer cells and TME, but also simultaneously resolve the severe side effects of various cancer treatment approaches, leading to more effective, precise, and less invasive therapy. Nanoparticles based on proteins derived from silkworms' cocoons (like silk fibroin and sericins) and silk proteins from spiders (spidroins) are intensively explored not only in the oncology field. This natural-derived material offer biocompatibility, biodegradability, and simplicity of preparation methods. The protein-based material can be tailored for size, stability, drug loading/release kinetics, and functionalized with targeting ligands. This review summarizes the current status of drug delivery systems' development based on proteins derived from silk fibroin, sericins, and spidroins, which application is focused on systemic cancer treatment. The nanoparticles that deliver chemotherapeutics, nucleic acid-based therapeutics, natural-derived agents, therapeutic proteins or peptides, inorganic compounds, as well as photosensitive molecules, are introduced.
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Affiliation(s)
- Anna Florczak
- Department of Medical Biotechnology, Poznan University of Medical Sciences, 61-866 Poznan, Poland; (A.F.); (I.G.); (T.D.); (K.K.); (A.K.)
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, 61-866 Poznan, Poland
| | - Inga Grzechowiak
- Department of Medical Biotechnology, Poznan University of Medical Sciences, 61-866 Poznan, Poland; (A.F.); (I.G.); (T.D.); (K.K.); (A.K.)
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, 61-866 Poznan, Poland
| | - Tomasz Deptuch
- Department of Medical Biotechnology, Poznan University of Medical Sciences, 61-866 Poznan, Poland; (A.F.); (I.G.); (T.D.); (K.K.); (A.K.)
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, 61-866 Poznan, Poland
| | - Kamil Kucharczyk
- Department of Medical Biotechnology, Poznan University of Medical Sciences, 61-866 Poznan, Poland; (A.F.); (I.G.); (T.D.); (K.K.); (A.K.)
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, 61-866 Poznan, Poland
| | - Alicja Kaminska
- Department of Medical Biotechnology, Poznan University of Medical Sciences, 61-866 Poznan, Poland; (A.F.); (I.G.); (T.D.); (K.K.); (A.K.)
| | - Hanna Dams-Kozlowska
- Department of Medical Biotechnology, Poznan University of Medical Sciences, 61-866 Poznan, Poland; (A.F.); (I.G.); (T.D.); (K.K.); (A.K.)
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, 61-866 Poznan, Poland
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9
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Chambre L, Martín-Moldes Z, Parker RN, Kaplan DL. Bioengineered elastin- and silk-biomaterials for drug and gene delivery. Adv Drug Deliv Rev 2020; 160:186-198. [PMID: 33080258 PMCID: PMC7736173 DOI: 10.1016/j.addr.2020.10.008] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 09/30/2020] [Accepted: 10/16/2020] [Indexed: 12/11/2022]
Abstract
Advances in medical science have led to diverse new therapeutic modalities, as well as enhanced understanding of the progression of various disease states. These findings facilitate the design and development of more customized and exquisite drug delivery systems that aim to improve therapeutic indices of drugs to treat a variety of conditions. Synthetic polymer-based drug carriers have often been the focus of such research. However, these structures suffer from challenges with heterogeneity of the starting material, limited chemical features, complex functionalization methods, and in some cases a lack of biocompatibility. Consequently, protein-based polymers have garnered much attention in recent years due to their monodisperse features, ease of production and functionalization, and biocompatibility. Genetic engineering techniques enable the advancement of protein-based drug delivery systems with finely tuned physicochemical properties, and thus an expanded level of customization unavailable with synthetic polymers. Of these genetically engineered proteins, elastin-like proteins (ELP), silk-like proteins (SLP), and silk-elastin-like proteins (SELP) provide a unique set of alternatives for designing drug delivery systems due to their inherent chemical and physical properties and ease of engineering afforded by recombinant DNA technologies. In this review we examine the advantages of genetically engineered drug delivery systems with emphasis on ELP and SLP constructions. Methods for fabrication and relevant biomedical applications will also be discussed.
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Affiliation(s)
- Laura Chambre
- Department of Biomedical Engineering, Tufts University, 4 Colby St, Medford, MA 02155, USA
| | - Zaira Martín-Moldes
- Department of Biomedical Engineering, Tufts University, 4 Colby St, Medford, MA 02155, USA
| | - Rachael N Parker
- Department of Biomedical Engineering, Tufts University, 4 Colby St, Medford, MA 02155, USA
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, 4 Colby St, Medford, MA 02155, USA.
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10
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Kucharczyk K, Florczak A, Deptuch T, Penderecka K, Jastrzebska K, Mackiewicz A, Dams-Kozlowska H. Drug affinity and targeted delivery: double functionalization of silk spheres for controlled doxorubicin delivery into Her2-positive cancer cells. J Nanobiotechnology 2020; 18:56. [PMID: 32228620 PMCID: PMC7106823 DOI: 10.1186/s12951-020-00609-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 03/16/2020] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND The optimal drug delivery system should be biocompatible, biodegradable, and allow the sustained release of the drug only after it reaches the target cells. Silk, as a natural polymer, is a great candidate for building drug carriers. Genetically engineered silks offer the possibility of functionalization. Previously, we characterized bioengineered silk spheres that were functionalized with H2.1 peptide that selectively delivered a drug to Her2-positive cancer cells. However, drug leakage from the silk spheres showed the need for improved control. RESULTS To control the drug loading and release, we designed and produced functional silk (DOXMS2) that contains a DOX peptide with an affinity for doxorubicin. The DOXMS2 spheres showed the decreased release of doxorubicin compared with MS2 particles. Next, the DOXMS2 silk was blended with the H2.1MS1 polymer to improve the control of doxorubicin binding and release into Her2-positive cancer cells. The H2.1MS1:DOXMS2 particles showed the highest doxorubicin-loading capacity and binding per cell, which resulted in the highest cytotoxic effect compared with that of other sphere variants. Since drug release at a pH of 7.4 from the blended H2.1MS1:DOXMS2 particles was significantly lower than from blended spheres without DOXMS2 silk, this indicated that such particles could control the release of the drug into the circulatory system before the carrier reached the tumor site. CONCLUSIONS This strategy, which is based on the blending of silks, allows for the generation of particles that deliver drugs in a controlled manner.
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Affiliation(s)
- Kamil Kucharczyk
- Chair of Medical Biotechnology, Poznan University of Medical Sciences, 61-688 Poznan, Poland
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, 15 Garbary St, 61-688 Poznan, Poland
| | - Anna Florczak
- Chair of Medical Biotechnology, Poznan University of Medical Sciences, 61-688 Poznan, Poland
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, 15 Garbary St, 61-688 Poznan, Poland
| | - Tomasz Deptuch
- Chair of Medical Biotechnology, Poznan University of Medical Sciences, 61-688 Poznan, Poland
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, 15 Garbary St, 61-688 Poznan, Poland
| | - Karolina Penderecka
- Chair of Medical Biotechnology, Poznan University of Medical Sciences, 61-688 Poznan, Poland
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, 15 Garbary St, 61-688 Poznan, Poland
| | - Katarzyna Jastrzebska
- Chair of Medical Biotechnology, Poznan University of Medical Sciences, 61-688 Poznan, Poland
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, 15 Garbary St, 61-688 Poznan, Poland
| | - Andrzej Mackiewicz
- Chair of Medical Biotechnology, Poznan University of Medical Sciences, 61-688 Poznan, Poland
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, 15 Garbary St, 61-688 Poznan, Poland
| | - Hanna Dams-Kozlowska
- Chair of Medical Biotechnology, Poznan University of Medical Sciences, 61-688 Poznan, Poland
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, 15 Garbary St, 61-688 Poznan, Poland
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11
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Tomeh MA, Hadianamrei R, Zhao X. Silk Fibroin as a Functional Biomaterial for Drug and Gene Delivery. Pharmaceutics 2019; 11:E494. [PMID: 31561578 PMCID: PMC6835371 DOI: 10.3390/pharmaceutics11100494] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Revised: 09/24/2019] [Accepted: 09/24/2019] [Indexed: 01/31/2023] Open
Abstract
Silk is a natural polymer with unique physicochemical and mechanical properties which makes it a desirable biomaterial for biomedical and pharmaceutical applications. Silk fibroin (SF) has been widely used for preparation of drug delivery systems due to its biocompatibility, controllable degradability and tunable drug release properties. SF-based drug delivery systems can encapsulate and stabilize various small molecule drugs as well as large biological drugs such as proteins and DNA to enhance their shelf lives and control the release to enhance their circulation time in the blood and thus the duration of action. Understanding the properties of SF and the potential ways of manipulating its structure to modify its physicochemical and mechanical properties allows for preparation of modulated drug delivery systems with desirable efficacies. This review will discuss the properties of SF material and summarize the recent advances of SF-based drug and gene delivery systems. Furthermore, conjugation of the SF to other biomolecules or polymers for tissue-specific drug delivery will also be discussed.
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Affiliation(s)
- Mhd Anas Tomeh
- Department of Chemical and Biological Engineering, University of Sheffield, Sheffield S1 3JD, UK.
| | - Roja Hadianamrei
- Department of Chemical and Biological Engineering, University of Sheffield, Sheffield S1 3JD, UK.
| | - Xiubo Zhao
- Department of Chemical and Biological Engineering, University of Sheffield, Sheffield S1 3JD, UK.
- School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou 213164, China.
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12
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Ulkoski D, Bak A, Wilson JT, Krishnamurthy VR. Recent advances in polymeric materials for the delivery of RNA therapeutics. Expert Opin Drug Deliv 2019; 16:1149-1167. [PMID: 31498013 DOI: 10.1080/17425247.2019.1663822] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Introduction: The delivery of nucleic acid therapeutics through non-viral carriers face multiple biological barriers that reduce their therapeutic efficiency. Despite great progress, there remains a significant technological gap that continues to limit clinical translation of these nanocarriers. A number of polymeric materials are being exploited to efficiently deliver nucleic acids and achieve therapeutic effects. Areas covered: We discuss the recent advances in the polymeric materials for the delivery of nucleic acid therapeutics. We examine the use of common polymer architectures and highlight the challenges that exist for their development from bench side to clinic. We also provide an overview of the most notable improvements made to circumvent such challenges, including structural modification and stimuli-responsive approaches, for safe and effective nucleic acid delivery. Expert opinion: It has become apparent that a universal carrier that follows 'one-size' fits all model cannot be expected for delivery of all nucleic acid therapeutics. Carriers need to be designed to exhibit sensitivity and specificity toward individual targets diseases/indications, and relevant subcellular compartments, each of which possess their own unique challenges. The ability to devise synthetic methods that control the molecular architecture enables the future development that allow for the construction of 'intelligent' designs.
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Affiliation(s)
- David Ulkoski
- Advanced Drug Delivery, Pharmaceutical Sciences, R&D, AstraZeneca , Boston , USA
| | - Annette Bak
- Advanced Drug Delivery, Pharmaceutical Sciences, R&D, AstraZeneca , Gothenburg , Sweden
| | - John T Wilson
- Department of Chemical and Biomolecular Engineering, Vanderbilt University , Nashville , TN , USA
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13
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Florczak A, Mackiewicz A, Dams-Kozlowska H. Cellular uptake, intracellular distribution and degradation of Her2-targeting silk nanospheres. Int J Nanomedicine 2019; 14:6855-6865. [PMID: 32021156 PMCID: PMC6716583 DOI: 10.2147/ijn.s217854] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Accepted: 07/27/2019] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND The development of nanocarrier technology has attracted great interest in the last decade. Biodegradable spheres made of functionalized silk have considerable potential to be used as drug delivery systems for cancer treatment. A targeting ligand displayed at the surface of a carrier, with a specific affinity towards a particular receptor, can further enhance the accumulation and uptake of nanoparticles at the site of a tumor. MATERIALS AND METHODS The hybrid constructs were obtained by adding a Her2-binding peptide (H2.1) to MS1 and MS2 bioengineered silks based on the MaSp1 and MaSp2 proteins from N. clavipes, respectively. The H2.1MS1 and H2.1MS2 proteins were blended at a weight ratio of 8:2. Stable silk particles were formed by mixing a soluble protein with potassium phosphate using a micromixing technique. We used specific inhibitors of endocytosis to determine the cellular uptake pathway of the silk nanoparticles in human Her2-positive breast cancer cells. The subcellular distribution of silk particles was investigated by evaluating the signal colocalization with organelle-specific tracker. Moreover, lysosomal and exosomal inhibitors were implemented to evaluate their impact on the silk spheres behavior and degradation. RESULTS The functionalized spheres were specifically taken up by Her2-positive cancer cells. Silk particles facilitated the entry into cells through both the clathrin- and caveola-dependent pathways of endocytosis. Upon entering the cells, the particles accumulated in the lysosomes, where intracellular degradation occurred. CONCLUSIONS The present study demonstrated directly that the lysosomal function was essential for silk-based carrier elimination. The degradation of the carrier is of great importance to develop an optimal drug delivery system.
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Affiliation(s)
- Anna Florczak
- Department of Medical Biotechnology, Poznan University of Medical Sciences, Poznan60-806, Poland
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, Poznan61-866, Poland
| | - Andrzej Mackiewicz
- Department of Medical Biotechnology, Poznan University of Medical Sciences, Poznan60-806, Poland
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, Poznan61-866, Poland
| | - Hanna Dams-Kozlowska
- Department of Medical Biotechnology, Poznan University of Medical Sciences, Poznan60-806, Poland
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, Poznan61-866, Poland
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14
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Mehrotra S, Chouhan D, Konwarh R, Kumar M, Jadi PK, Mandal BB. Comprehensive Review on Silk at Nanoscale for Regenerative Medicine and Allied Applications. ACS Biomater Sci Eng 2019; 5:2054-2078. [PMID: 33405710 DOI: 10.1021/acsbiomaterials.8b01560] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Shreya Mehrotra
- Biomaterial and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati−781039, Assam, India
| | - Dimple Chouhan
- Biomaterial and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati−781039, Assam, India
| | - Rocktotpal Konwarh
- Biotechnology Department, Addis Ababa Science and Technology University, Addis Ababa−16417, Ethiopia
| | - Manishekhar Kumar
- Biomaterial and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati−781039, Assam, India
| | - Praveen Kumar Jadi
- Biomaterial and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati−781039, Assam, India
| | - Biman B. Mandal
- Biomaterial and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati−781039, Assam, India
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15
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Nanostructured, Self-Assembled Spider Silk Materials for Biomedical Applications. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1174:187-221. [PMID: 31713200 DOI: 10.1007/978-981-13-9791-2_6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The extraordinary mechanical properties of spider silk fibers result from the interplay of composition, structure and self-assembly of spider silk proteins (spidroins). Genetic approaches enabled the biotechnological production of recombinant spidroins which have been employed to unravel the self-assembly and spinning process. Various processing conditions allowed to explore non-natural morphologies including nanofibrils, particles, capsules, hydrogels, films or foams. Recombinant spider silk proteins and materials made thereof can be utilized for biomedical applications, such as drug delivery, tissue engineering or 3D-biomanufacturing.
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16
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Holland C, Numata K, Rnjak‐Kovacina J, Seib FP. The Biomedical Use of Silk: Past, Present, Future. Adv Healthc Mater 2019; 8:e1800465. [PMID: 30238637 DOI: 10.1002/adhm.201800465] [Citation(s) in RCA: 365] [Impact Index Per Article: 73.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2018] [Revised: 08/04/2018] [Indexed: 11/07/2022]
Abstract
Humans have long appreciated silk for its lustrous appeal and remarkable physical properties, yet as the mysteries of silk are unraveled, it becomes clear that this outstanding biopolymer is more than a high-tech fiber. This progress report provides a critical but detailed insight into the biomedical use of silk. This journey begins with a historical perspective of silk and its uses, including the long-standing desire to reverse engineer silk. Selected silk structure-function relationships are then examined to appreciate past and current silk challenges. From this, biocompatibility and biodegradation are reviewed with a specific focus of silk performance in humans. The current clinical uses of silk (e.g., sutures, surgical meshes, and fabrics) are discussed, as well as clinical trials (e.g., wound healing, tissue engineering) and emerging biomedical applications of silk across selected formats, such as silk solution, films, scaffolds, electrospun materials, hydrogels, and particles. The journey finishes with a look at the roadmap of next-generation recombinant silks, especially the development pipeline of this new industry for clinical use.
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Affiliation(s)
- Chris Holland
- Department of Materials Science and Engineering The University of Sheffield Sir Robert Hadfield Building, Mappin Street Sheffield South Yorkshire S1 3JD UK
| | - Keiji Numata
- Biomacromolecules Research Team RIKEN Center for Sustainable Resource Science 2‐1 Hirosawa Wako Saitama 351‐0198 Japan
| | - Jelena Rnjak‐Kovacina
- Graduate School of Biomedical Engineering The University of New South Wales Sydney NSW 2052 Australia
| | - F. Philipp Seib
- Leibniz Institute of Polymer Research Dresden Max Bergmann Center of Biomaterials Dresden Dresden 01069 Germany
- Strathclyde Institute of Pharmacy and Biomedical Sciences University of Strathclyde Glasgow G4 0RE UK
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17
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Abascal NC, Regan L. The past, present and future of protein-based materials. Open Biol 2018; 8:180113. [PMID: 30381364 PMCID: PMC6223211 DOI: 10.1098/rsob.180113] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 10/05/2018] [Indexed: 11/23/2022] Open
Abstract
Protein-based materials are finding new uses and applications after millennia of impacting the daily life of humans. Some of the earliest uses of protein-based materials are still evident in silk and wool textiles and leather goods. Today, even as silks, wools and leathers are still be used in traditional ways, these proteins are now seen as promising materials for biomaterials, vehicles of drug delivery and components of high-tech fabrics. With the advent of biosynthetic methods and streamlined means of protein purification, protein-based materials-recombinant and otherwise-are being used in a host of applications at the cutting edge of medicine, electronics, materials science and even fashion. This commentary aims to discuss a handful of these applications while taking a critical look at where protein-based materials may be used in the future.
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Affiliation(s)
- Nadia C Abascal
- Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT, USA
| | - Lynne Regan
- Department of Interdisciplinary Science, Centre for Synthetic and Systems Biology, Institute for Quantitative Biology, Biochemistry and Biotechnology, School of Biological Sciences, University of Edinburgh, Edinburgh, UK
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18
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DeFrates K, Markiewicz T, Gallo P, Rack A, Weyhmiller A, Jarmusik B, Hu X. Protein Polymer-Based Nanoparticles: Fabrication and Medical Applications. Int J Mol Sci 2018; 19:E1717. [PMID: 29890756 PMCID: PMC6032199 DOI: 10.3390/ijms19061717] [Citation(s) in RCA: 110] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 06/06/2018] [Accepted: 06/07/2018] [Indexed: 12/15/2022] Open
Abstract
Nanoparticles are particles that range in size from about 1⁻1000 nanometers in diameter, about one thousand times smaller than the average cell in a human body. Their small size, flexible fabrication, and high surface-area-to-volume ratio make them ideal systems for drug delivery. Nanoparticles can be made from a variety of materials including metals, polysaccharides, and proteins. Biological protein-based nanoparticles such as silk, keratin, collagen, elastin, corn zein, and soy protein-based nanoparticles are advantageous in having biodegradability, bioavailability, and relatively low cost. Many protein nanoparticles are easy to process and can be modified to achieve desired specifications such as size, morphology, and weight. Protein nanoparticles are used in a variety of settings and are replacing many materials that are not biocompatible and have a negative impact on the environment. Here we attempt to review the literature pertaining to protein-based nanoparticles with a focus on their application in drug delivery and biomedical fields. Additional detail on governing nanoparticle parameters, specific protein nanoparticle applications, and fabrication methods are also provided.
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Affiliation(s)
- Kelsey DeFrates
- Department of Physics and Astronomy, Rowan University, Glassboro, NJ 08028, USA.
- Department of Biomedical Engineering, Rowan University, Glassboro, NJ 08028, USA.
| | - Theodore Markiewicz
- Department of Biomedical Engineering, Rowan University, Glassboro, NJ 08028, USA.
| | - Pamela Gallo
- Department of Molecular and Cellular Biosciences, Rowan University, Glassboro, NJ 08028, USA.
| | - Aaron Rack
- Department of Molecular and Cellular Biosciences, Rowan University, Glassboro, NJ 08028, USA.
| | - Aubrie Weyhmiller
- Department of Physics and Astronomy, Rowan University, Glassboro, NJ 08028, USA.
| | - Brandon Jarmusik
- Department of Physics and Astronomy, Rowan University, Glassboro, NJ 08028, USA.
| | - Xiao Hu
- Department of Physics and Astronomy, Rowan University, Glassboro, NJ 08028, USA.
- Department of Biomedical Engineering, Rowan University, Glassboro, NJ 08028, USA.
- Department of Molecular and Cellular Biosciences, Rowan University, Glassboro, NJ 08028, USA.
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19
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Aigner TB, DeSimone E, Scheibel T. Biomedical Applications of Recombinant Silk-Based Materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1704636. [PMID: 29436028 DOI: 10.1002/adma.201704636] [Citation(s) in RCA: 145] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 10/26/2017] [Indexed: 05/18/2023]
Abstract
Silk is mostly known as a luxurious textile, which originates from silkworms first cultivated in China. A deeper look into the variety of silk reveals that it can be used for much more, in nature and by humanity. For medical purposes, natural silks were recognized early as a potential biomaterial for surgical threads or wound dressings; however, as biomedical engineering advances, the demand for high-performance, naturally derived biomaterials becomes more pressing and stringent. A common problem of natural materials is their large batch-to-batch variation, the quantity available, their potentially high immunogenicity, and their fast biodegradation. Some of these common problems also apply to silk; therefore, recombinant approaches for producing silk proteins have been developed. There are several research groups which study and utilize various recombinantly produced silk proteins, and many of these have also investigated their products for biomedical applications. This review gives a critical overview over of the results for applications of recombinant silk proteins in biomedical engineering.
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Affiliation(s)
| | - Elise DeSimone
- University Bayreuth, Lehrstuhl Biomaterialien, Universitätsstr. 30, 95447, Bayreuth, Germany
| | - Thomas Scheibel
- Bayreuther Zentrum für Kolloide und Grenzflächen (BZKG), Bayreuther Zentrum für Bio-Makromoleküle (bio-mac), Bayreuther Zentrum für Molekulare Biowissenschaften (BZMB), Bayreuther Materialzentrum (BayMAT), Bayerisches Polymerinstitut (BPI), University Bayreuth, Universitätsstr. 30, 95447, Bayreuth, Germany
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20
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Jastrzebska K, Florczak A, Kucharczyk K, Lin Y, Wang Q, Mackiewicz A, Kaplan DL, Dams-Kozlowska H. Delivery of chemotherapeutics using spheres made of bioengineered spider silks derived from MaSp1 and MaSp2 proteins. Nanomedicine (Lond) 2018; 13:439-454. [PMID: 29338625 PMCID: PMC5810845 DOI: 10.2217/nnm-2017-0276] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 12/11/2017] [Indexed: 01/16/2023] Open
Abstract
AIM Analysis of the properties and chemotherapeutics delivery potential of spheres made of bioengineered spider silks MS1 and MS2. MATERIALS & METHODS MS1 and MS2 derived from Nephila clavipes dragline silks - MaSp1 and MaSp2, respectively - formed spheres that were compared in terms of physicochemical properties, cytotoxicity and loading/release of chemotherapeutics. RESULTS MS2 spheres were more dispersed, smaller, of solid core, of higher beta-sheet structure content, and of opposite (negative) charge than MS1 spheres. Preloaded MS2 showed greater applicability for mitoxantrone, while postloaded for etoposide delivery compared with MS1 spheres. However, MS1 spheres were a better choice for doxorubicin delivery than MS2. CONCLUSION Bioengineered silks can be tailored to develop a system with optimal drug loading and release properties.
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Affiliation(s)
- Katarzyna Jastrzebska
- Chair of Medical Biotechnology, Poznan University of Medical Sciences, 61–688 Poznan, Poland
- NanoBioMedical Centre, Adam Mickiewicz University, 61–614 Poznan, Poland
| | - Anna Florczak
- Chair of Medical Biotechnology, Poznan University of Medical Sciences, 61–688 Poznan, Poland
- NanoBioMedical Centre, Adam Mickiewicz University, 61–614 Poznan, Poland
| | - Kamil Kucharczyk
- Chair of Medical Biotechnology, Poznan University of Medical Sciences, 61–688 Poznan, Poland
| | - Yinnan Lin
- Biomedical Engineering Department, Tufts University, Medford, MA 02155, USA
| | - Qin Wang
- Biomedical Engineering Department, Tufts University, Medford, MA 02155, USA
| | - Andrzej Mackiewicz
- Chair of Medical Biotechnology, Poznan University of Medical Sciences, 61–688 Poznan, Poland
- BioContract Sp. z o.o., 61-051 Poznan, Poland
- Department of Diagnostics & Cancer Immunology, Greater Poland Cancer Centre, 61–688 Poznan, Poland
| | - David L Kaplan
- Biomedical Engineering Department, Tufts University, Medford, MA 02155, USA
| | - Hanna Dams-Kozlowska
- Chair of Medical Biotechnology, Poznan University of Medical Sciences, 61–688 Poznan, Poland
- Department of Diagnostics & Cancer Immunology, Greater Poland Cancer Centre, 61–688 Poznan, Poland
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21
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Deptuch T, Dams-Kozlowska H. Silk Materials Functionalized via Genetic Engineering for Biomedical Applications. MATERIALS (BASEL, SWITZERLAND) 2017; 10:E1417. [PMID: 29231863 PMCID: PMC5744352 DOI: 10.3390/ma10121417] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 12/04/2017] [Accepted: 12/06/2017] [Indexed: 12/21/2022]
Abstract
The great mechanical properties, biocompatibility and biodegradability of silk-based materials make them applicable to the biomedical field. Genetic engineering enables the construction of synthetic equivalents of natural silks. Knowledge about the relationship between the structure and function of silk proteins enables the design of bioengineered silks that can serve as the foundation of new biomaterials. Furthermore, in order to better address the needs of modern biomedicine, genetic engineering can be used to obtain silk-based materials with new functionalities. Sequences encoding new peptides or domains can be added to the sequences encoding the silk proteins. The expression of one cDNA fragment indicates that each silk molecule is related to a functional fragment. This review summarizes the proposed genetic functionalization of silk-based materials that can be potentially useful for biomedical applications.
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Affiliation(s)
- Tomasz Deptuch
- Department of Cancer Immunology, Chair of Medical Biotechnology, Poznan University of Medical Sciences, 61-688 Poznan, Poland.
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, 61-688 Poznan, Poland.
| | - Hanna Dams-Kozlowska
- Department of Cancer Immunology, Chair of Medical Biotechnology, Poznan University of Medical Sciences, 61-688 Poznan, Poland.
- Department of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, 61-688 Poznan, Poland.
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22
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Functionalized bioengineered spider silk spheres improve nuclease resistance and activity of oligonucleotide therapeutics providing a strategy for cancer treatment. Acta Biomater 2017; 59:221-233. [PMID: 28694238 DOI: 10.1016/j.actbio.2017.07.014] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 07/06/2017] [Accepted: 07/06/2017] [Indexed: 02/07/2023]
Abstract
Cell-selective delivery and sensitivity to serum nucleases remain major hurdles to the clinical application of RNA-based oligonucleotide therapeutics, such as siRNA. Spider silk shows great potential as a biomaterial due to its biocompatibility and biodegradability. Self-assembling properties of silk proteins allow for processing into several different morphologies such as fibers, scaffolds, films, hydrogels, capsules and spheres. Moreover, bioengineering of spider silk protein sequences can functionalize silk by adding peptide moieties with specific features including binding or cell recognition domains. We demonstrated that modification of silk protein by adding the nucleic acid binding domain enabled the development of a novel oligonucleotide delivery system that can be utilized to improve pharmacokinetics of RNA-based therapeutics, such as CpG-siRNA. The MS2 bioengineered silk was functionalized with poly-lysine domain (KN) to generate hybrid silk MS2KN. CpG-siRNA efficiently bound to MS2KN in contrary to control MS2. Both MS2KN complexes and spheres protected CpG-siRNA from degradation by serum nucleases. CpG-siRNA molecules encapsulated into MS2KN spheres were efficiently internalized and processed by TLR9-positive macrophages. Importantly, CpG-STAT3siRNA loaded in silk spheres showed delayed and extended target gene silencing compared to naked oligonucleotides. The prolonged Stat3 silencing resulted in the more pronounced downregulation of interleukin 6 (IL-6), a proinflammatory cytokine and upstream activator of STAT3, which limits the efficacy of TLR9 immunostimulation. Our results demonstrate the feasibility of using spider silk spheres as a carrier of therapeutic nucleic acids. Moreover, the modified kinetic and activity of the CpG-STAT3siRNA embedded into silk spheres is likely to improve immunotherapeutic effects in vivo. STATEMENT OF SIGNIFICANCE We demonstrated that modification of silk protein by adding the nucleic acid binding domain enabled the development of a novel oligonucleotide delivery system that can be utilized to improve pharmacokinetics of RNA-based therapeutics. Although, the siRNA constructs have already given very promising results in the cancer therapy, the in vivo application of RNA-based oligonucleotide therapeutics still is limited due to their sensitivity to serum nucleases and some toxicity. We propose a carrier for RNA-based therapeutics that is made of bioengineered spider silk. We showed that functionalized bioengineered spider silk spheres not only protected RNA-based therapeutics from degradation by serum nucleases, but what is more important the embedding of siRNA into silk spheres delayed and extended target gene silencing compared with naked oligonucleotides. Moreover, we showed that plain silk spheres did not have unspecific effect on target gene levels proving not only to be non-cytotoxic but also very neutral vehicles in terms of TLR9/STAT3 activation in macrophages. We demonstrated advantages of novel delivery technology in safety and efficacy comparing with delivery of naked CpG-STAT3siRNA therapeutics.
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23
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Florczak A, Jastrzebska K, Mackiewicz A, Dams-Kozlowska H. Blending two bioengineered spider silks to develop cancer targeting spheres. J Mater Chem B 2017; 5:3000-3011. [DOI: 10.1039/c7tb00233e] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Blending two bioengineered spider silks combines the most favorable characteristics of both silks and can lead to the formation of an optimal drug delivery vehicle.
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Affiliation(s)
- Anna Florczak
- Chair of Medical Biotechnology
- Poznan University of Medical Sciences
- Poznan 60-806
- Poland
- NanoBioMedical Centre
| | - Katarzyna Jastrzebska
- Chair of Medical Biotechnology
- Poznan University of Medical Sciences
- Poznan 60-806
- Poland
- NanoBioMedical Centre
| | - Andrzej Mackiewicz
- Chair of Medical Biotechnology
- Poznan University of Medical Sciences
- Poznan 60-806
- Poland
- NanoBioMedical Centre
| | - Hanna Dams-Kozlowska
- Chair of Medical Biotechnology
- Poznan University of Medical Sciences
- Poznan 60-806
- Poland
- Department of Diagnostics and Cancer Immunology
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24
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Chuah JA, Horii Y, Numata K. Peptide-derived Method to Transport Genes and Proteins Across Cellular and Organellar Barriers in Plants. J Vis Exp 2016. [PMID: 28060264 PMCID: PMC5226412 DOI: 10.3791/54972] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
The capacity to introduce exogenous proteins and express (or down-regulate) specific genes in plants provides a powerful tool for fundamental research as well as new applications in the field of plant biotechnology. Viable methods that currently exist for protein or gene transfer into plant cells, namely Agrobacterium and microprojectile bombardment, have disadvantages of low transformation frequency, limited host range, or a high cost of equipment and microcarriers. The following protocol outlines a simple and versatile method, which employs rationally-designed peptides as delivery agents for a variety of nucleic acid- and protein-based cargoes into plants. Peptides are selected as tools for development of the system due to their biodegradability, reduced size, diverse and tunable properties as well as the ability to gain intracellular/organellar access. The preparation, characterization and application of optimized formulations for each type of the wide range of delivered cargoes (plasmid DNA, double-stranded DNA or RNA, and protein) are described. Critical steps within the protocol, possible modifications and existing limitations of the method are also discussed.
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Affiliation(s)
- Jo-Ann Chuah
- Enzyme Research Team, RIKEN Center for Sustainable Resource Science
| | - Yoko Horii
- Enzyme Research Team, RIKEN Center for Sustainable Resource Science
| | - Keiji Numata
- Enzyme Research Team, RIKEN Center for Sustainable Resource Science;
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25
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You S, Luo J, Grossniklaus HE, Gou ML, Meng K, Zhang Q. Nanomedicine in the application of uveal melanoma. Int J Ophthalmol 2016; 9:1215-25. [PMID: 27588278 DOI: 10.18240/ijo.2016.08.20] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Accepted: 02/16/2016] [Indexed: 12/28/2022] Open
Abstract
Rapid advances in nanomedicine have significantly changed many aspects of nanoparticle application to the eye including areas of diagnosis, imaging and more importantly drug delivery. The nanoparticle-based drug delivery systems has provided a solution to various drug solubility-related problems in ophthalmology treatment. Nanostructured compounds could be used to achieve local ocular delivery with minimal unwanted systematic side effects produced by taking advantage of the phagocyte system. In addition, the in vivo control release by nanomaterials encapsulated drugs provides prolong exposure of the compound in the body. Furthermore, certain nanoparticles can overcome important body barriers including the blood-retinal barrier as well as the corneal-retinal barrier of the eye for effective delivery of the drug. In summary, the nanotechnology based drug delivery system may serve as an important tool for uveal melanoma treatment.
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Affiliation(s)
- Shuo You
- Department of Endocrinology, the Second Xiangya Hospital, Central South University, Changsha 410011, Hunan Province, China; Winship Cancer Institute, School of Medicine, Emory University, Atlanta, Georgia 30322, USA
| | - Jing Luo
- Department of Ophthalmology, the Second Xiangya Hospital, Central South University, Changsha 410011, Hunan Province, China
| | - Hans E Grossniklaus
- Winship Cancer Institute, School of Medicine, Emory University, Atlanta, Georgia 30322, USA; Department of Ophthalmology, School of Medicine, Emory University, Atlanta, Georgia 30322, USA; Department of Pathology, School of Medicine, Emory University, Atlanta, Georgia 30322, USA
| | - Ma-Ling Gou
- State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Ke Meng
- State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Qing Zhang
- Department of Ophthalmology, the Second Xiangya Hospital, Central South University, Changsha 410011, Hunan Province, China; Department of Ophthalmology, School of Medicine, Emory University, Atlanta, Georgia 30322, USA
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26
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Ng KK, Motoda Y, Watanabe S, Sofiman Othman A, Kigawa T, Kodama Y, Numata K. Intracellular Delivery of Proteins via Fusion Peptides in Intact Plants. PLoS One 2016; 11:e0154081. [PMID: 27100681 PMCID: PMC4839658 DOI: 10.1371/journal.pone.0154081] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Accepted: 04/08/2016] [Indexed: 11/18/2022] Open
Abstract
In current plant biotechnology, the introduction of exogenous DNA encoding desired traits is the most common approach used to modify plants. However, general plant transformation methods can cause random integration of exogenous DNA into the plant genome. To avoid these events, alternative methods, such as a direct protein delivery system, are needed to modify the plant. Although there have been reports of the delivery of proteins into cultured plant cells, there are currently no methods for the direct delivery of proteins into intact plants, owing to their hierarchical structures. Here, we demonstrate the efficient fusion-peptide-based delivery of proteins into intact Arabidopsis thaliana. Bovine serum albumin (BSA, 66 kDa) was selected as a model protein to optimize conditions for delivery into the cytosol. The general applicability of our method to large protein cargo was also demonstrated by the delivery of alcohol dehydrogenase (ADH, 150 kDa) into the cytosol. The compatibility of the fusion peptide system with the delivery of proteins to specific cellular organelles was also demonstrated using the fluorescent protein Citrine (27 kDa) conjugated to either a nuclear localization signal (NLS) or a peroxisomal targeting signal (PTS). In conclusion, our designed fusion peptide system can deliver proteins with a wide range of molecular weights (27 to 150 kDa) into the cells of intact A. thaliana without interfering with the organelle-targeting peptide conjugated to the protein. We expect that this efficient protein delivery system will be a powerful tool in plant biotechnology.
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Affiliation(s)
- Kiaw Kiaw Ng
- Enzyme Research Team, Biomass Engineering Research Division, RIKEN Center for Sustainable Resource Science, Wako, Saitama, Japan
- School of Biological Sciences, Universiti Sains Malaysia, Penang, Malaysia
| | - Yoko Motoda
- Enzyme Research Team, Biomass Engineering Research Division, RIKEN Center for Sustainable Resource Science, Wako, Saitama, Japan
- Laboratory for Biomolecular Structure and Dynamics, RIKEN Quantitative Biology Center (QBiC), Yokohama, Kanagawa, Japan
| | - Satoru Watanabe
- Laboratory for Biomolecular Structure and Dynamics, RIKEN Quantitative Biology Center (QBiC), Yokohama, Kanagawa, Japan
| | | | - Takanori Kigawa
- Laboratory for Biomolecular Structure and Dynamics, RIKEN Quantitative Biology Center (QBiC), Yokohama, Kanagawa, Japan
- Department of Computational Intelligence and Systems Science, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, Yokohama, Kanagawa, Japan
| | - Yutaka Kodama
- Center for Bioscience Research and Education, Utsunomiya University, Utsunomiya, Tochigi, Japan
| | - Keiji Numata
- Enzyme Research Team, Biomass Engineering Research Division, RIKEN Center for Sustainable Resource Science, Wako, Saitama, Japan
- * E-mail:
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27
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Virlan MJR, Miricescu D, Radulescu R, Sabliov CM, Totan A, Calenic B, Greabu M. Organic Nanomaterials and Their Applications in the Treatment of Oral Diseases. Molecules 2016; 21:E207. [PMID: 26867191 PMCID: PMC6273611 DOI: 10.3390/molecules21020207] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Revised: 01/20/2016] [Accepted: 01/28/2016] [Indexed: 12/18/2022] Open
Abstract
There is a growing interest in the development of organic nanomaterials for biomedical applications. An increasing number of studies focus on the uses of nanomaterials with organic structure for regeneration of bone, cartilage, skin or dental tissues. Solid evidence has been found for several advantages of using natural or synthetic organic nanostructures in a wide variety of dental fields, from implantology, endodontics, and periodontics, to regenerative dentistry and wound healing. Most of the research is concentrated on nanoforms of chitosan, silk fibroin, synthetic polymers or their combinations, but new nanocomposites are constantly being developed. The present work reviews in detail current research on organic nanoparticles and their potential applications in the dental field.
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Affiliation(s)
- Maria Justina Roxana Virlan
- Department of Biochemistry, Faculty of Dentistry, University of Medicine and Pharmacy Carol Davila, Blvd. EroiiSanitari, No. 8, RO-050474 Bucharest, Romania.
| | - Daniela Miricescu
- Department of Biochemistry, Faculty of Dentistry, University of Medicine and Pharmacy Carol Davila, Blvd. EroiiSanitari, No. 8, RO-050474 Bucharest, Romania.
| | - Radu Radulescu
- Department of Biochemistry, Faculty of Dentistry, University of Medicine and Pharmacy Carol Davila, Blvd. EroiiSanitari, No. 8, RO-050474 Bucharest, Romania.
| | - Cristina M Sabliov
- Agricultural and Biological Engineering Department, Louisiana State University and LSU Ag Center, 149 EB Doran Building, Baton Rouge, LA 70803, USA.
| | - Alexandra Totan
- Department of Biochemistry, Faculty of Dentistry, University of Medicine and Pharmacy Carol Davila, Blvd. EroiiSanitari, No. 8, RO-050474 Bucharest, Romania.
| | - Bogdan Calenic
- Department of Biochemistry, Faculty of Dentistry, University of Medicine and Pharmacy Carol Davila, Blvd. EroiiSanitari, No. 8, RO-050474 Bucharest, Romania.
| | - Maria Greabu
- Department of Biochemistry, Faculty of Dentistry, University of Medicine and Pharmacy Carol Davila, Blvd. EroiiSanitari, No. 8, RO-050474 Bucharest, Romania.
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28
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Palao-Suay R, Gómez-Mascaraque L, Aguilar M, Vázquez-Lasa B, Román JS. Self-assembling polymer systems for advanced treatment of cancer and inflammation. Prog Polym Sci 2016. [DOI: 10.1016/j.progpolymsci.2015.07.005] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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29
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Li AB, Kluge JA, Guziewicz NA, Omenetto FG, Kaplan DL. Silk-based stabilization of biomacromolecules. J Control Release 2015; 219:416-430. [PMID: 26403801 PMCID: PMC4656123 DOI: 10.1016/j.jconrel.2015.09.037] [Citation(s) in RCA: 95] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Accepted: 09/19/2015] [Indexed: 11/26/2022]
Abstract
Silk fibroin is a high molecular weight amphiphilic protein that self-assembles into robust biomaterials with remarkable properties including stabilization of biologicals and tunable release kinetics correlated to processing conditions. Cells, antibiotics,monoclonal antibodies and peptides, among other biologics, have been encapsulated in silk using various processing approaches and material formats. The mechanistic basis for the entrapment and stabilization features, along with insights into the modulation of release of the entrained compounds from silks will be reviewed with a focus on stabilization of bioactive molecules.
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Affiliation(s)
- Adrian B Li
- Department of Chemical and Biological Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA
| | - Jonathan A Kluge
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA
| | - Nicholas A Guziewicz
- Drug Product Technologies, Amgen, 1 Amgen Center Drive, Thousand Oaks, CA 91320, USA
| | - Fiorenzo G Omenetto
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA
| | - David L Kaplan
- Department of Chemical and Biological Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA; Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA.
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30
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Numata K. Poly(amino acid)s/polypeptides as potential functional and structural materials. Polym J 2015. [DOI: 10.1038/pj.2015.35] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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31
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Zhao Z, Li Y, Xie MB. Silk fibroin-based nanoparticles for drug delivery. Int J Mol Sci 2015; 16:4880-903. [PMID: 25749470 PMCID: PMC4394455 DOI: 10.3390/ijms16034880] [Citation(s) in RCA: 163] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Revised: 02/01/2015] [Accepted: 02/02/2015] [Indexed: 01/12/2023] Open
Abstract
Silk fibroin (SF) is a protein-based biomacromolecule with excellent biocompatibility, biodegradability and low immunogenicity. The development of SF-based nanoparticles for drug delivery have received considerable attention due to high binding capacity for various drugs, controlled drug release properties and mild preparation conditions. By adjusting the particle size, the chemical structure and properties, the modified or recombinant SF-based nanoparticles can be designed to improve the therapeutic efficiency of drugs encapsulated into these nanoparticles. Therefore, they can be used to deliver small molecule drugs (e.g., anti-cancer drugs), protein and growth factor drugs, gene drugs, etc. This paper reviews recent progress on SF-based nanoparticles, including chemical structure, properties, and preparation methods. In addition, the applications of SF-based nanoparticles as carriers for therapeutic drugs are also reviewed.
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Affiliation(s)
- Zheng Zhao
- State Key Lab of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China.
- Institute of Textiles and Clothing, the Hong Kong Polytechnic University, Hong Kong 999077, China.
- Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan 430070, China.
| | - Yi Li
- Institute of Textiles and Clothing, the Hong Kong Polytechnic University, Hong Kong 999077, China.
| | - Mao-Bin Xie
- Institute of Textiles and Clothing, the Hong Kong Polytechnic University, Hong Kong 999077, China.
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32
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Kim SY, Wong AHM, Abou Neel EA, Chrzanowski W, Chan HK. The future perspectives of natural materials for pulmonary drug delivery and lung tissue engineering. Expert Opin Drug Deliv 2014; 12:869-87. [DOI: 10.1517/17425247.2015.993314] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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33
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Silk as an innovative biomaterial for cancer therapy. Rep Pract Oncol Radiother 2014; 20:87-98. [PMID: 25859397 DOI: 10.1016/j.rpor.2014.11.010] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Accepted: 11/25/2014] [Indexed: 12/21/2022] Open
Abstract
Silk has been used for centuries in the textile industry and as surgical sutures. In addition to its unique mechanical properties, silk possesses other properties, such as biocompatibility, biodegradability and ability to self-assemble, which make it an interesting material for biomedical applications. Although silk forms only fibers in nature, synthetic techniques can be used to control the processing of silk into different morphologies, such as scaffolds, films, hydrogels, microcapsules, and micro- and nanospheres. Moreover, the biotechnological production of silk proteins broadens the potential applications of silk. Synthetic silk genes have been designed. Genetic engineering enables modification of silk properties or the construction of a hybrid silk. Bioengineered hybrid silks consist of a silk sequence that self-assembles into the desired morphological structure and the sequence of a polypeptide that confers a function to the silk biomaterial. The functional domains can comprise binding sites for receptors, enzymes, drugs, metals or sugars, among others. Here, we review the current status of potential applications of silk biomaterials in the field of oncology with a focus on the generation of implantable, injectable and targeted drug delivery systems and the three-dimensional cancer models based on silk scaffolds for cancer research. However, the systems described could be applied in many biomedical fields.
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34
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Huang W, Rollett A, Kaplan DL. Silk-elastin-like protein biomaterials for the controlled delivery of therapeutics. Expert Opin Drug Deliv 2014; 12:779-91. [PMID: 25476201 DOI: 10.1517/17425247.2015.989830] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
INTRODUCTION Genetically engineered biomaterials are useful for controlled delivery owing to their rational design, tunable structure-function, biocompatibility, degradability and target specificity. Silk-elastin-like proteins (SELPs), a family of genetically engineered recombinant protein polymers, possess these properties. Additionally, given the benefits of combining semi-crystalline silk-blocks and elastomeric elastin-blocks, SELPs possess multi-stimuli-responsive properties and tunability, thereby becoming promising candidates for targeted cancer therapeutics delivery and controlled gene release. AREAS COVERED An overview of SELP biomaterials for drug delivery and gene release is provided. Biosynthetic strategies used for SELP production, fundamental physicochemical properties and self-assembly mechanisms are discussed. The review focuses on sequence-structure-function relationships, stimuli-responsive features and current and potential drug delivery applications. EXPERT OPINION The tunable material properties allow SELPs to be pursued as promising biomaterials for nanocarriers and injectable drug release systems. Current applications of SELPs have focused on thermally-triggered biomaterial formats for the delivery of therapeutics, based on local hyperthermia in tumors or infections. Other prominent controlled release applications of SELPs as injectable hydrogels for gene release have also been pursued. Further biomedical applications that utilize other stimuli to trigger the reversible material responses of SELPs for targeted delivery, including pH, ionic strength, redox, enzymatic stimuli and electric field, are in progress. Exploiting these additional stimuli-responsive features will provide a broader range of functional biomaterials for controlled therapeutics release and tissue regeneration.
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Affiliation(s)
- Wenwen Huang
- Tufts University, Department of Biomedical Engineering , 4 Colby Street, Medford, MA 02155 , USA
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35
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Tokareva OS, Glettig DL, Abbott RD, Kaplan DL. Multifunctional spider silk polymers for gene delivery to human mesenchymal stem cells. J Biomed Mater Res B Appl Biomater 2014; 103:1390-401. [PMID: 25399785 DOI: 10.1002/jbm.b.33322] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 08/26/2014] [Accepted: 10/26/2014] [Indexed: 12/29/2022]
Abstract
Non-viral gene delivery systems are important transport vehicles that can be safe and effective alternatives to currently available viral systems. A new family of multifunctional spider silk-based gene carriers was bioengineered and found capable of targeting human mesenchymal stem cells (hMSCs). These carriers successfully delivered DNA to the nucleus of these mammalian cells. The presence of specific functional sequences in the recombinant proteins, such as a nuclear localization sequence (NLS) of the large tumor (T) antigen of the Simian virus 40 (SV40 ), an hMSC high affinity binding peptide (HAB), and a translocation motif (TLM) of the hepatitis-B virus surface protein (PreS2), and their roles in mitigation and enhancement of gene transfection efficiency towards hMSCs were characterized. The results demonstrate that these bioengineered spider silk proteins serve as effective carriers, without the well-known complications associated with viral delivery systems.
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Affiliation(s)
- Olena S Tokareva
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts, 02155
| | - Dean L Glettig
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts, 02155
| | - Rosalyn D Abbott
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts, 02155
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts, 02155
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36
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Desai MS, Lee SW. Protein-based functional nanomaterial design for bioengineering applications. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2014; 7:69-97. [DOI: 10.1002/wnan.1303] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2014] [Revised: 08/12/2014] [Accepted: 09/02/2014] [Indexed: 01/01/2023]
Affiliation(s)
- Malav S. Desai
- Department of Bioengineering; University of California, Berkeley; Berkeley CA USA
- Physical Biosciences Division; Lawrence Berkeley National Laboratory; Berkeley CA USA
| | - Seung-Wuk Lee
- Department of Bioengineering; University of California, Berkeley; Berkeley CA USA
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37
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Toita R, Kang JH, Kim CW, Shiosaki S, Mori T, Niidome T, Katayama Y. Effect of peptide content on the regulation of transgene expression by protein kinase Cα-responsive linear polyethylenimine-peptide conjugates. Colloids Surf B Biointerfaces 2014; 123:123-9. [PMID: 25270730 DOI: 10.1016/j.colsurfb.2014.09.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Revised: 08/27/2014] [Accepted: 09/01/2014] [Indexed: 01/04/2023]
Abstract
We examined a series of linear polyethylenimine (LPEI)-based nanocarriers that activate transgene expression in response to cancer-specific protein kinase Cα (PKCα). Eight types of LPEI-peptide conjugate differing in peptide content and number were synthesized using click chemistry. The conjugates could form polyplexes with pDNA through electrostatic interaction, but the degree of pDNA condensation, sizes, and surface charges of the resulting polyplexes depended on the pendant-peptide content and number. None of the polyplexes showed significant cytotoxicity toward human hepatoma cells (HepG2). Furthermore, pendant peptide content and number markedly affected transgene activation in response to PKCα. To achieve an all-or-none response to PKCα, we determined the optimum peptide content and number in LPEI-peptide conjugates as ≈6 mol% and ≈40 peptides/conjugate.
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Affiliation(s)
- Riki Toita
- Graduate School of Systems Life Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Jeong-Hun Kang
- Division of Biopharmaceutics and Pharmacokinetics, Department of Biomedical Engineering, National Cerebral and Cardiovascular Center Research Institute, 5-7-1 Fujishirodai, Suita, Osaka 565-8565, Japan
| | - Chan Woo Kim
- Graduate School of Systems Life Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Shujiro Shiosaki
- Graduate School of Systems Life Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Takeshi Mori
- Graduate School of Systems Life Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; Department of Applied Chemistry, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Takuro Niidome
- Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan
| | - Yoshiki Katayama
- Graduate School of Systems Life Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; Department of Applied Chemistry, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; International Research Center for Molecular Systems, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; Center for Advanced Medical Innovation, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
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38
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Processing of recombinant spider silk proteins into tailor-made materials for biomaterials applications. Curr Opin Biotechnol 2014; 29:62-9. [DOI: 10.1016/j.copbio.2014.02.015] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2013] [Accepted: 02/20/2014] [Indexed: 11/19/2022]
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39
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Numata K, Ohtani M, Yoshizumi T, Demura T, Kodama Y. Local gene silencing in plants via synthetic dsRNA and carrier peptide. PLANT BIOTECHNOLOGY JOURNAL 2014; 12:1027-34. [PMID: 24905384 DOI: 10.1111/pbi.12208] [Citation(s) in RCA: 84] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Accepted: 03/12/2014] [Indexed: 05/05/2023]
Abstract
Quick and facile transient RNA interference (RNAi) is one of the most valuable plant biotechnologies for analysing plant gene functions. To establish a novel double-strand RNA (dsRNA) delivery system for plants, we developed an ionic complex of synthetic dsRNA with a carrier peptide in which a cell-penetrating peptide is fused with a polycation sequence as a gene carrier. The dsRNA-peptide complex is 100-300 nm in diameter and positively charged. Infiltration of the complex into intact leaf cells of Arabidopsis thaliana successfully induced rapid and efficient down-regulation of exogenous and endogenous genes such as yellow fluorescent protein and chalcone synthase. The present method realizes quick and local gene silencing in specific tissues and/or organs in plants.
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Affiliation(s)
- Keiji Numata
- Enzyme Research Team, Biomass Engineering Program Cooperative Division, RIKEN Center for Sustainable Resource Science, Wako-shi, Saitama, Japan
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40
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Price R, Poursaid A, Ghandehari H. Controlled release from recombinant polymers. J Control Release 2014; 190:304-13. [PMID: 24956486 PMCID: PMC4142100 DOI: 10.1016/j.jconrel.2014.06.016] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Revised: 06/10/2014] [Accepted: 06/13/2014] [Indexed: 12/13/2022]
Abstract
Recombinant polymers provide a high degree of molecular definition for correlating structure with function in controlled release. The wide array of amino acids available as building blocks for these materials lend many advantages including biorecognition, biodegradability, potential biocompatibility, and control over mechanical properties among other attributes. Genetic engineering and DNA manipulation techniques enable the optimization of structure for precise control over spatial and temporal release. Unlike the majority of chemical synthetic strategies used, recombinant DNA technology has allowed for the production of monodisperse polymers with specifically defined sequences. Several classes of recombinant polymers have been used for controlled drug delivery. These include, but are not limited to, elastin-like, silk-like, and silk-elastinlike proteins, as well as emerging cationic polymers for gene delivery. In this article, progress and prospects of recombinant polymers used in controlled release will be reviewed.
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Affiliation(s)
- Robert Price
- Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT, USA; Utah Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, UT, USA
| | - Azadeh Poursaid
- Utah Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, UT, USA; Department of Bioengineering, University of Utah, Salt Lake City, UT, USA
| | - Hamidreza Ghandehari
- Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, UT, USA; Utah Center for Nanomedicine, Nano Institute of Utah, University of Utah, Salt Lake City, UT, USA; Department of Bioengineering, University of Utah, Salt Lake City, UT, USA.
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41
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Silk fibroin layer-by-layer microcapsules for localized gene delivery. Biomaterials 2014; 35:7929-39. [DOI: 10.1016/j.biomaterials.2014.05.062] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Accepted: 05/21/2014] [Indexed: 12/23/2022]
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42
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Florczak A, Mackiewicz A, Dams-Kozlowska H. Functionalized Spider Silk Spheres As Drug Carriers for Targeted Cancer Therapy. Biomacromolecules 2014; 15:2971-81. [DOI: 10.1021/bm500591p] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Anna Florczak
- Chair
of Medical Biotechnology, Poznan University of Medical Sciences, Poznan 61-866, Poland
- NanoBioMedical
Centre, Adam Mickiewicz University, Poznan 61-614, Poland
| | - Andrzej Mackiewicz
- Chair
of Medical Biotechnology, Poznan University of Medical Sciences, Poznan 61-866, Poland
- Department
of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, Poznan 61-866, Poland
- BioContract, Poznan 61- 051, Poland
| | - Hanna Dams-Kozlowska
- Chair
of Medical Biotechnology, Poznan University of Medical Sciences, Poznan 61-866, Poland
- Department
of Diagnostics and Cancer Immunology, Greater Poland Cancer Centre, Poznan 61-866, Poland
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43
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Yigit S, Tokareva O, Varone A, Georgakoudi I, Kaplan DL. Bioengineered silk gene delivery system for nuclear targeting. Macromol Biosci 2014; 14:1291-8. [PMID: 24889658 DOI: 10.1002/mabi.201400113] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2014] [Revised: 04/01/2014] [Indexed: 12/31/2022]
Abstract
Gene delivery research has gained momentum with the use of lipophilic vectors that mimic viral systems to increase transfection efficiency. Maintaining cell viability with these systems remains a major challenge. Therefore, biocompatible biopolymers that are designed by combining non-immunological viral mimicking components with suitable carrier are explored to address these limitations. In the present study, dragline silk recombinant proteins are modified with DNA condensing units and the proton sponge endosomal escape pathway is utilized for enhanced delivery. Transfection efficiency in a COS-7 cell line is enhanced compared to lipofectamine and polyethyleneimine (PEI), as is cell viability.
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Affiliation(s)
- Sezin Yigit
- Department of Chemistry, Tufts University, 62 Talbot Avenue, Medford, MA 02155, USA
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44
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Recent advances in developing insect natural products as potential modern day medicines. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2014; 2014:904958. [PMID: 24883072 PMCID: PMC4026837 DOI: 10.1155/2014/904958] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2013] [Accepted: 01/28/2014] [Indexed: 01/01/2023]
Abstract
Except for honey as food, and silk for clothing and pollination of plants, people give little thought to the benefits of insects in their lives. This overview briefly describes significant recent advances in developing insect natural products as potential new medicinal drugs. This is an exciting and rapidly expanding new field since insects are hugely variable and have utilised an enormous range of natural products to survive environmental perturbations for 100s of millions of years. There is thus a treasure chest of untapped resources waiting to be discovered. Insects products, such as silk and honey, have already been utilised for thousands of years, and extracts of insects have been produced for use in Folk Medicine around the world, but only with the development of modern molecular and biochemical techniques has it become feasible to manipulate and bioengineer insect natural products into modern medicines. Utilising knowledge gleaned from Insect Folk Medicines, this review describes modern research into bioengineering honey and venom from bees, silk, cantharidin, antimicrobial peptides, and maggot secretions and anticoagulants from blood-sucking insects into medicines. Problems and solutions encountered in these endeavours are described and indicate that the future is bright for new insect derived pharmaceuticals treatments and medicines.
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Abstract
Cytotoxicity, low water solubility, rapid clearance from circulation, and off-target side-effects are common drawbacks of conventional small-molecule drugs. To overcome these shortcomings, many multifunctional nanocarriers have been proposed to enhance drug delivery. In concept, multifunctional nanoparticles might carry multiple agents, control release rate, biodegrade, and utilize target-mediated drug delivery; however, the design of these particles presents many challenges at the stage of pharmaceutical development. An emerging solution to improve control over these particles is to turn to genetic engineering. Genetically engineered nanocarriers are precisely controlled in size and structure and can provide specific control over sites for chemical attachment of drugs. Genetically engineered drug carriers that assemble nanostructures including nanoparticles and nanofibers can be polymeric or non-polymeric. This review summarizes the recent development of applications in drug and gene delivery utilizing nanostructures of polymeric genetically engineered drug carriers such as elastin-like polypeptides, silk-like polypeptides, and silk-elastin-like protein polymers, and non-polymeric genetically engineered drug carriers such as vault proteins and viral proteins.
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Affiliation(s)
- Pu Shi
- Department of Pharmacology and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA, USA
| | - Joshua A Gustafson
- Department of Pharmacology and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA, USA
| | - J Andrew MacKay
- Department of Pharmacology and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA, USA
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Das SK, Dey T, Kundu SC. Fabrication of sericin nanoparticles for controlled gene delivery. RSC Adv 2014. [DOI: 10.1039/c3ra44990d] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Tokareva O, Michalczechen-Lacerda VA, Rech EL, Kaplan DL. Recombinant DNA production of spider silk proteins. Microb Biotechnol 2013; 6:651-63. [PMID: 24119078 PMCID: PMC3815454 DOI: 10.1111/1751-7915.12081] [Citation(s) in RCA: 105] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2013] [Revised: 07/31/2013] [Accepted: 08/01/2013] [Indexed: 11/27/2022] Open
Abstract
Spider dragline silk is considered to be the toughest biopolymer on Earth due to an extraordinary combination of strength and elasticity. Moreover, silks are biocompatible and biodegradable protein-based materials. Recent advances in genetic engineering make it possible to produce recombinant silks in heterologous hosts, opening up opportunities for large-scale production of recombinant silks for various biomedical and material science applications. We review the current strategies to produce recombinant spider silks.
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Affiliation(s)
- Olena Tokareva
- Department of Biomedical Engineering, Tufts UniversityMedford, MA, 02155, USA
| | - Valquíria A Michalczechen-Lacerda
- Department of Cell Biology, Campus Universitario Darcy Ribeiro, Institute of Biology, University of BrasiliaBrasilia, DF, 70910-900, Brazil
| | - Elíbio L Rech
- Embrapa Genetics Resources and Biotechnology, Biotechnology UnitParque Estação Biológica PqEB W5 Norte, Brasilia, 70770-900, DF, Brazil
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts UniversityMedford, MA, 02155, USA
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Lakshmanan M, Kodama Y, Yoshizumi T, Sudesh K, Numata K. Rapid and efficient gene delivery into plant cells using designed peptide carriers. Biomacromolecules 2013; 14:10-6. [PMID: 23215041 DOI: 10.1021/bm301275g] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
To develop a new easy and quick gene delivery system for any types of plants, we prepared ionic complexes of plasmid DNA with designed peptide carriers, each of which combined a cell-penetrating peptide (Bp100 or Tat(2)) with a polycation (nona-arginine or a copolymer of histidine and lysine). The present system via the designed peptides demonstrated rapid and efficient transient transfections into intact leaf cells of Nicotiana benthamiana and Arabidopsis thaliana without protoplast preparations. The designed peptides demonstrated significantly higher transfection efficiency in comparison to the nonfusion peptides (Bp100, Tat2, nona-arginine, and copolymer of histidine and lysine), indicating that the combination of functional peptides was a key to develop an efficient peptide-based gene delivery system. On the basis of the results, we exhibited the versatility of the designed peptide-based gene delivery system, which will explore the application of plant biotechnology.
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Affiliation(s)
- Manoj Lakshmanan
- Enzyme Research Team, RIKEN Biomass Engineering Program, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
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