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Wang S, Li L, Gao H, Zhang K, Shao QJ, Li T, Gao B. Middle cerebral artery bifurcation aneurysms are associated with patient age, sex, bifurcation angle, and vascular diameters. Sci Rep 2023; 13:22844. [PMID: 38129685 PMCID: PMC10739803 DOI: 10.1038/s41598-023-50380-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 12/19/2023] [Indexed: 12/23/2023] Open
Abstract
To investigate the relationship of the middle cerebral artery (MCA) bifurcation aneurysms with patients' age and sex, vascular angles at the bifurcation, and diameters of the M1 and two M2 arteries, patients with and without MCA aneurysms were retrospectively enrolled. The lateral angles, MCA bifurcation angle and arterial diameter were measured and analyzed. Totally, 121 (19.0%) patients with and 517 (81.0%) without MCA aneurysms were enrolled. Most (n = 88 or 72.7%) aneurysms were present in the age range of 40-70 years, and significantly (P = 0.01) more women than men had the bifurcation aneurysms. The MCA bifurcation angle was significantly greater (149.2° ± 32.6° vs. 107.2° ± 26.3°; P < 0.0001) while both the smaller and larger lateral (M1/M2) angles were significantly smaller in patients with than without aneurysms (82.0° ± 23.7° vs. 109.1° ± 22.7° with P < 0.001 for the smaller and 123.2° ± 25.2° vs. 139.5° ± 16.9° with P < 0.001 for the larger lateral angle). 109 (90.1%) bifurcation aneurysms deviated towards the smaller lateral angle, and 103 (85.1%) aneurysms deviated towards the thinner M2 branch. The maximal aneurysm diameter ranged 1.6-13.8 (mean 5.4 ± 2.4) mm and was significantly (P < 0.05) positively correlated with the diameter of both M2 arterial branches (R = 0.57 and P = 0.01 for the smaller M2, and R = 0.69 and P = 0.002 for the larger M2) or the MCA bifurcation angle. A significant (P < 0.0001) negative correlation was detected between age and the smaller lateral angle but a significant (P < 0.0001) positive correlation between age and the MCA bifurcation angle in patients without MCA bifurcation aneurysms or in the total patients. MCA bifurcation angle was the only significant (P = 0.0001, odds ratio 2.7, 95% confidence interval 1.6-3.8) independent risk factor for MCA bifurcation aneurysm presence, with the bifurcation angle threshold of 124.1° and an area under the ROC curve of 0.86. In conclusion, significantly more MCA bifurcation aneurysms are present in older patients, females, and patients with a wider MCA bifurcation angle, and deviate towards the smaller lateral angle and the thinner M2 segment. MCA bifurcation angle is the only independent risk factor for presence of MCA bifurcation aneurysms with the threshold of 124.1°.
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Affiliation(s)
- Shu Wang
- Stroke Center, Henan Provincial People's Hospital, 7 Weiwu Road, Zhengzhou, 450000, Henan Province, China
| | - Li Li
- Stroke Center, Henan Provincial People's Hospital, 7 Weiwu Road, Zhengzhou, 450000, Henan Province, China
| | - Huili Gao
- Stroke Center, Henan Provincial People's Hospital, 7 Weiwu Road, Zhengzhou, 450000, Henan Province, China
| | - Kun Zhang
- Stroke Center, Henan Provincial People's Hospital, 7 Weiwu Road, Zhengzhou, 450000, Henan Province, China
| | - Qiu-Ji Shao
- Stroke Center, Henan Provincial People's Hospital, 7 Weiwu Road, Zhengzhou, 450000, Henan Province, China
| | - Tianxiao Li
- Stroke Center, Henan Provincial People's Hospital, 7 Weiwu Road, Zhengzhou, 450000, Henan Province, China.
| | - Bulang Gao
- Stroke Center, Henan Provincial People's Hospital, 7 Weiwu Road, Zhengzhou, 450000, Henan Province, China
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Kelly G, Milligan JJ, Mastria EM, Kim S, Zelenetz SR, Dobbins J, Cai LY, Li X, Nair SK, Chilkoti A. Intratumoral delivery of brachytherapy and immunotherapy by a thermally triggered polypeptide depot. J Control Release 2022; 343:267-276. [PMID: 35077742 PMCID: PMC8960370 DOI: 10.1016/j.jconrel.2022.01.024] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 01/15/2022] [Accepted: 01/18/2022] [Indexed: 10/19/2022]
Abstract
Biomaterial-based approaches for a combination of radiotherapy and immunotherapy can improve outcomes in metastatic cancer through local delivery of both therapeutic modalities to the primary tumor to control local tumor growth and distant metastases. This study describes an injectable depot for sustained intratumoral (i.t.) delivery of an iodine-131 (131I) radionuclide and a CpG oligodeoxynucleotide immunostimulant, driven by the thermally sensitive phase transition behavior of elastin-like polypeptides (ELPs). We synthesized and characterized an ELP with an oligolysine tail (ELP-K12) that forms an electrostatic complex with CpG for delivery from an ELP depot and evaluated the ability of the complex to enhance local and systemic tumor control as a monotherapy and in combination with 131I-ELP brachytherapy. I.t delivery of CpG from an ELP-K12 depot dramatically prolongs i.t. retention to more than 21 days as compared to soluble CpG that is only retained within the tumor for <24 h. ELP-K12 also enhances CpG delivery by increasing cellular uptake of CpG to generate greater toll-like receptor 9 (TLR9) activation than CpG alone. I.t. treatment with an ELP-K12/CpG depot slows primary tumor growth and reduces lung metastases in a poorly immunogenic 4 T1 syngeneic breast cancer model whereas i.t treatment of CpG alone has no significant effect on primary tumor growth or metastases. Notably, a combination of 131I-ELP brachytherapy and ELP-K12/CpG delivered i.t. inhibited 4 T1 tumor growth and strongly decreased the development of lung metastases, leading to a synergistic improvement in mouse survival. These preclinical results demonstrate that injectable ELP depots may provide a useful approach for the delivery of combination radio- and immuno-therapy to treat metastatic disease.
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Affiliation(s)
- Garrett Kelly
- Department of Biomedical Engineering, Pratt School of Engineering, Duke University, 101 Science Dr., Campus Box 90281, Durham, NC 27708, USA
| | - Joshua J. Milligan
- Department of Biomedical Engineering, Pratt School of Engineering, Duke University, 101 Science Dr., Campus Box 90281, Durham, NC 27708, USA
| | - Eric M. Mastria
- Department of Biomedical Engineering, Pratt School of Engineering, Duke University, 101 Science Dr., Campus Box 90281, Durham, NC 27708, USA
| | - Sarah Kim
- Department of Biomedical Engineering, Pratt School of Engineering, Duke University, 101 Science Dr., Campus Box 90281, Durham, NC 27708, USA
| | - Stephanie R. Zelenetz
- Department of Biomedical Engineering, Pratt School of Engineering, Duke University, 101 Science Dr., Campus Box 90281, Durham, NC 27708, USA
| | - Jarrett Dobbins
- Department of Biomedical Engineering, Pratt School of Engineering, Duke University, 101 Science Dr., Campus Box 90281, Durham, NC 27708, USA
| | - Leon Y. Cai
- Department of Biomedical Engineering, Pratt School of Engineering, Duke University, 101 Science Dr., Campus Box 90281, Durham, NC 27708, USA
| | - Xinghai Li
- Department of Biomedical Engineering, Pratt School of Engineering, Duke University, 101 Science Dr., Campus Box 90281, Durham, NC 27708, USA
| | - Smita K. Nair
- Department of Surgery, Duke University School of Medicine, 2301 Erwin Rd., DUMC Box 370, Durham, NC 27710, USA
| | - Ashutosh Chilkoti
- Department of Biomedical Engineering, Pratt School of Engineering, Duke University, 101 Science Dr., Campus Box 90281, Durham, NC 27708, USA.
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Wang B, Patkar SS, Kiick KL. Application of Thermoresponsive Intrinsically Disordered Protein Polymers in Nanostructured and Microstructured Materials. Macromol Biosci 2021; 21:e2100129. [PMID: 34145967 PMCID: PMC8449816 DOI: 10.1002/mabi.202100129] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/25/2021] [Indexed: 01/15/2023]
Abstract
Modulation of inter- and intramolecular interactions between bioinspired designer molecules can be harnessed for developing functional structures that mimic the complex hierarchical organization of multicomponent assemblies observed in nature. Furthermore, such multistimuli-responsive molecules offer orthogonal tunability for generating versatile multifunctional platforms via independent biochemical and biophysical cues. In this review, the remarkable physicochemical and mechanical properties of genetically engineered protein polymers derived from intrinsically disordered proteins, specifically elastin and resilin, are discussed. This review highlights emerging technologies which use them as building blocks in the fabrication of highly programmable structured biomaterials for applications in delivery of biotherapeutic cargo and regenerative medicine.
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Affiliation(s)
- Bin Wang
- Department of Materials Science and Engineering, University of Delaware, 201 DuPont Hall, Newark, DE, 19716, USA
| | - Sai S Patkar
- Department of Materials Science and Engineering, University of Delaware, 201 DuPont Hall, Newark, DE, 19716, USA
| | - Kristi L Kiick
- Department of Materials Science and Engineering, University of Delaware, 201 DuPont Hall, Newark, DE, 19716, USA
- Department of Biomedical Engineering, University of Delaware, 161 Colburn Laboratory, Newark, DE, 19716, USA
- Delaware Biotechnology Institute, Ammon Pinizzotto Biopharmaceutical Innovation Center, 590 Avenue 1743, Newark, DE, 19713, USA
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Rodriguez-Cabello JC, Gonzalez De Torre I, González-Pérez M, González-Pérez F, Montequi I. Fibrous Scaffolds From Elastin-Based Materials. Front Bioeng Biotechnol 2021; 9:652384. [PMID: 34336798 PMCID: PMC8323661 DOI: 10.3389/fbioe.2021.652384] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 06/25/2021] [Indexed: 11/28/2022] Open
Abstract
Current cutting-edge strategies in biomaterials science are focused on mimicking the design of natural systems which, over millions of years, have evolved to exhibit extraordinary properties. Based on this premise, one of the most challenging tasks is to imitate the natural extracellular matrix (ECM), due to its ubiquitous character and its crucial role in tissue integrity. The anisotropic fibrillar architecture of the ECM has been reported to have a significant influence on cell behaviour and function. A new paradigm that pivots around the idea of incorporating biomechanical and biomolecular cues into the design of biomaterials and systems for biomedical applications has emerged in recent years. Indeed, current trends in materials science address the development of innovative biomaterials that include the dynamics, biochemistry and structural features of the native ECM. In this context, one of the most actively studied biomaterials for tissue engineering and regenerative medicine applications are nanofiber-based scaffolds. Herein we provide a broad overview of the current status, challenges, manufacturing methods and applications of nanofibers based on elastin-based materials. Starting from an introduction to elastin as an inspiring fibrous protein, as well as to the natural and synthetic elastin-based biomaterials employed to meet the challenge of developing ECM-mimicking nanofibrous-based scaffolds, this review will follow with a description of the leading strategies currently employed in nanofibrous systems production, which in the case of elastin-based materials are mainly focused on supramolecular self-assembly mechanisms and the use of advanced manufacturing technologies. Thus, we will explore the tendency of elastin-based materials to form intrinsic fibers, and the self-assembly mechanisms involved. We will describe the function and self-assembly mechanisms of silk-like motifs, antimicrobial peptides and leucine zippers when incorporated into the backbone of the elastin-based biomaterial. Advanced polymer-processing technologies, such as electrospinning and additive manufacturing, as well as their specific features, will be presented and reviewed for the specific case of elastin-based nanofiber manufacture. Finally, we will present our perspectives and outlook on the current challenges facing the development of nanofibrous ECM-mimicking scaffolds based on elastin and elastin-like biomaterials, as well as future trends in nanofabrication and applications.
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Affiliation(s)
- Jose Carlos Rodriguez-Cabello
- BIOFORGE, University of Valladolid, Valladolid, Spain
- Center for Biomedical Research in the Network in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Israel Gonzalez De Torre
- BIOFORGE, University of Valladolid, Valladolid, Spain
- Center for Biomedical Research in the Network in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Miguel González-Pérez
- BIOFORGE, University of Valladolid, Valladolid, Spain
- Center for Biomedical Research in the Network in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Fernando González-Pérez
- BIOFORGE, University of Valladolid, Valladolid, Spain
- Center for Biomedical Research in the Network in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Irene Montequi
- BIOFORGE, University of Valladolid, Valladolid, Spain
- Center for Biomedical Research in the Network in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
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5
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Elastin-Plasma Hybrid Hydrogels for Skin Tissue Engineering. Polymers (Basel) 2021; 13:polym13132114. [PMID: 34203144 PMCID: PMC8271496 DOI: 10.3390/polym13132114] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/20/2021] [Accepted: 06/22/2021] [Indexed: 11/23/2022] Open
Abstract
Dermo-epidermal equivalents based on plasma-derived fibrin hydrogels have been extensively studied for skin engineering. However, they showed rapid degradation and contraction over time and low mechanical properties which limit their reproducibility and lifespan. In order to achieve better mechanical properties, elasticity and biological properties, we incorporated a elastin-like recombinamer (ELR) network, based on two types of ELR, one modified with azide (SKS-N3) and other with cyclooctyne (SKS-Cyclo) chemical groups at molar ratio 1:1 at three different SKS (serine-lysine-serine sequence) concentrations (1, 3, and 5 wt.%), into plasma-derived fibrin hydrogels. Our results showed a decrease in gelation time and contraction, both in the absence and presence of the encapsulated human primary fibroblasts (hFBs), higher mechanical properties and increase in elasticity when SKSs content is equal or higher than 3%. However, hFBs proliferation showed an improvement when the lowest SKS content (1 wt.%) was used but started decreasing when increasing SKS concentration at day 14 with respect to the plasma control. Proliferation of human primary keratinocytes (hKCs) seeded on top of the hybrid-plasma hydrogels containing 1 and 3% of SKS showed no differences to plasma control and an increase in hKCs proliferation was observed for hybrid-plasma hydrogels containing 5 wt.% of SKS. These promising results showed the need to achieve a balance between the reduced contraction, the better mechanical properties and biological properties and indicate the potential of using this type of hydrogel as a testing platform for pharmaceutical products and cosmetics, and future work will elucidate their potential.
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Basheer A, Shahid S, Kang MJ, Lee JH, Lee JS, Lim DW. Switchable Self-Assembly of Elastin- and Resilin-Based Block Copolypeptides with Converse Phase Transition Behaviors. ACS APPLIED MATERIALS & INTERFACES 2021; 13:24385-24400. [PMID: 34006089 DOI: 10.1021/acsami.1c00676] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Self-assembly of thermally responsive polypeptides into unique nanostructures offers intriguing attributes including dynamic physical dimensions, biocompatibility, and biodegradability for the smart bio-nanomaterials. As elastin-based polypeptide (EBP) fusion proteins with lower critical solution temperature (LCST) are studied as drug delivery systems, EBP block copolypeptides with the resilin-based polypeptide (RBP) displaying an upper critical solution temperature (UCST) have been of great interest. In this study, we report thermally triggered, dynamic self-assembly of EBP- and RBP-based diblock copolypeptides into switched nanostructures with reversibility under physiological conditions. Molecular DNA clones encoding for the EBP-RBP diblocks at different block length ratios were biosynthesized via recursive directional ligation and overexpressed, followed by nonchromatographic purification by inverse transition cycling. Genetically engineered diblock copolypeptides composed of the EBP with an LCST and the RBP with a UCST showed converse phase transition behaviors with both a distinct LCST and a distinct UCST (LCST < UCST). As temperature increased, three phases of these EBP-RBP diblocks were observed: (1) self-assembled micelles or vesicles below both LCST and UCST, (2) whole aggregates above LCST and below UCST, and (3) reversed micelles above both LCST and UCST. In conclusion, these stimuli-triggered, dynamic protein-based nanostructures are promising for advanced drug delivery systems, regenerative medicine, and biomedical nanotechnology.
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Affiliation(s)
- Aamna Basheer
- Department of Bionano Engineering and Department of Bionanotechnology, Center for Bionano Intelligence Education and Research, Hanyang University, Ansan 15588, Republic of Korea
| | - Shahzaib Shahid
- Department of Bionano Engineering and Department of Bionanotechnology, Center for Bionano Intelligence Education and Research, Hanyang University, Ansan 15588, Republic of Korea
| | - Min Jung Kang
- Department of Bionano Engineering and Department of Bionanotechnology, Center for Bionano Intelligence Education and Research, Hanyang University, Ansan 15588, Republic of Korea
| | - Jae Hee Lee
- Department of Bionano Engineering and Department of Bionanotechnology, Center for Bionano Intelligence Education and Research, Hanyang University, Ansan 15588, Republic of Korea
| | - Jae Sang Lee
- Department of Bionano Engineering and Department of Bionanotechnology, Center for Bionano Intelligence Education and Research, Hanyang University, Ansan 15588, Republic of Korea
| | - Dong Woo Lim
- Department of Bionano Engineering and Department of Bionanotechnology, Center for Bionano Intelligence Education and Research, Hanyang University, Ansan 15588, Republic of Korea
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7
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B M, D K, H R L, D CG, Sionkowska A. Insights into the miscibility characteristics of plastic-mimetic polypeptide with hydroxypropylmethylcellulose: Investigation of thermal degradability and intermolecular interactions. Colloids Surf B Biointerfaces 2021; 205:111877. [PMID: 34049001 DOI: 10.1016/j.colsurfb.2021.111877] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 05/10/2021] [Accepted: 05/11/2021] [Indexed: 11/25/2022]
Abstract
In this investigation, we integrated the parent recurring sequence of the plastic-derived polypeptide, poly[0.8(AVGVP),0.2(AEGVP)] (A, V, G, P, and E represents Alanine, Valine, Glycine, Proline, and Glutamic acid respectively) followed by characterization with inverse transition temperature, 13C, and 1H-NMR spectroscopy. The miscibility attributes of poly[0.8(AVGVP),0.2(AEGVP)] with Hydroxypropylmethylcellulose was examined both in aqueous and solid-phase. The Huggins' co-efficient [KH], the intrinsic viscosity [η], the interaction parameters ΔB and μ suggested by Chee, ΔK and β recommended by Jiang and Han, α by Sun, Δ[η]m by Garcia showed that the polypeptide was miscible with HPMC in all proportions. DSC studies revealed single Tg values, and TGA manifested the enhanced thermal stability for all the proportions compared with their individuals. Further, verified the results by SEM and XRD. The FTIR evidenced existence of intermolecular hydrogen bonding between the two constituent polymers that caused the miscible blend system.
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Affiliation(s)
- Mahesh B
- Department of Chemistry, JSS Academy of Technical Education(Affiliated to Visvesvaraya Technological University, Belagavi), Bengaluru, 560 060, India.
| | - Kathyayani D
- Department of Chemistry, JSS Academy of Technical Education(Affiliated to Visvesvaraya Technological University, Belagavi), Bengaluru, 560 060, India
| | - Lokesh H R
- Department of Chemistry, JSS Academy of Technical Education(Affiliated to Visvesvaraya Technological University, Belagavi), Bengaluru, 560 060, India
| | - Channe Gowda D
- DOS in Chemistry, Manasagangotri, University of Mysore, Mysuru, 570 006, India
| | - Alina Sionkowska
- Department of Chemistry of Biomaterials and Cosmetics, Nicolaus Copernicus University, Torun, Poland
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Bilginer R, Ozkendir‐Inanc D, Yildiz UH, Arslan‐Yildiz A. Biocomposite scaffolds for
3D
cell culture: Propolis enriched polyvinyl alcohol nanofibers favoring cell adhesion. J Appl Polym Sci 2020. [DOI: 10.1002/app.50287] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Rumeysa Bilginer
- Department of Bioengineering Izmir Institute of Technology (IZTECH) Izmir Turkey
| | | | - Umit Hakan Yildiz
- Department of Chemistry Izmir Institute of Technology (IZTECH) Izmir Turkey
| | - Ahu Arslan‐Yildiz
- Department of Bioengineering Izmir Institute of Technology (IZTECH) Izmir Turkey
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9
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Blends of synthetic plastic-derived polypeptide with Hydroxypropylmethylcellulose and polyvinyl alcohol: unraveling the specific interaction parameters, morphology and thermal stability of the polymers couple. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-02191-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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10
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Hui J, Sharma S, Rajani S, Singh A. The Specific Molecular Composition and Structural Arrangement of Eleutherodactylus Coqui Gular Skin Tissue Provide Its High Mechanical Compliance. Int J Mol Sci 2020; 21:E5593. [PMID: 32764252 PMCID: PMC7460573 DOI: 10.3390/ijms21165593] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 07/31/2020] [Accepted: 08/03/2020] [Indexed: 11/17/2022] Open
Abstract
A male Eleutherodactylus Coqui (EC, a frog) expands and contracts its gular skin to a great extent during mating calls, displaying its extraordinarily compliant organ. There are striking similarities between frog gular skin and the human bladder as both organs expand and contract significantly. While the high extensibility of the urinary bladder is attributed to the unique helical ultrastructure of collagen type III, the mechanism behind the gular skin of EC is unknown. We therefore aim to understand the structure-property relationship of gular skin tissues of EC. Our findings demonstrate that the male EC gular tissue can elongate up to 400%, with an ultimate tensile strength (UTS) of 1.7 MPa. Species without vocal sacs, Xenopus Laevis (XL) and Xenopus Muelleri (XM), elongate only up to 80% and 350% with UTS~6.3 MPa and ~4.5 MPa, respectively. Transmission electron microscopy (TEM) and histological staining further show that EC tissues' collagen fibers exhibit a layer-by-layer arrangement with an uninterrupted, knot-free, and continuous structure. The collagen bundles alternate between a circular and longitudinal shape, suggesting an out-of-plane zig-zag structure, which likely provides the tissue with greater extensibility. In contrast, control species contain a nearly linear collagen structure interrupted by thicker muscle bundles and mucous glands. Meanwhile, in the rat bladder, the collagen is arranged in a helical structure. The bladder-like high extensibility of EC gular skin tissue arises despite it having eight-fold lesser elastin and five times more collagen than the rat bladder. To our knowledge, this is the first study to report the structural and molecular mechanisms behind the high compliance of EC gular skin. We believe that these findings can lead us to develop more compliant biomaterials for applications in regenerative medicine.
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Affiliation(s)
- Justin Hui
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA; (J.H.); (S.R.)
| | - Shivang Sharma
- Department of Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA;
| | - Sarah Rajani
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA; (J.H.); (S.R.)
| | - Anirudha Singh
- Department of Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA;
- Department of Urology, The James Buchanan Brady Urological Institute, The Johns Hopkins School of Medicine, Baltimore, MD 21287, USA
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11
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Banskota S, Saha S, Bhattacharya J, Kirmani N, Yousefpour P, Dzuricky M, Zakharov N, Li X, Spasojevic I, Young K, Chilkoti A. Genetically Encoded Stealth Nanoparticles of a Zwitterionic Polypeptide-Paclitaxel Conjugate Have a Wider Therapeutic Window than Abraxane in Multiple Tumor Models. NANO LETTERS 2020; 20:2396-2409. [PMID: 32125864 DOI: 10.1021/acs.nanolett.9b05094] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Small-molecule therapeutics demonstrate suboptimal pharmacokinetics and bioavailability due to their hydrophobicity and size. One way to overcome these limitations-and improve their efficacy-is to use "stealth" macromolecular carriers that evade uptake by the reticuloendothelial system. Although unstructured polypeptides are of increasing interest as macromolecular drug carriers, current recombinant polypeptides in the clinical pipeline typically lack stealth properties. We address this challenge by developing new unstructured polypeptides, called zwitterionic polypeptides (ZIPPs), that exhibit "stealth" behavior in vivo. We show that conjugating paclitaxel to a ZIPP imparts amphiphilicity to the polypeptide chain that is sufficient to drive its self-assembly into micelles. This in turn increases the half-life of paclitaxel by 17-fold compared to free paclitaxel, and by 1.6-fold compared to the nonstealth control, i.e., ELP-paclitaxel. Treatment of mice bearing highly aggressive prostate or colon cancer with a single dose of ZIPP-paclitaxel nanoparticles leads to near-complete eradication of the tumor, and these nanoparticles have a wider therapeutic window than Abraxane, an FDA-approved taxane nanoformulation.
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Affiliation(s)
- Samagya Banskota
- Department of Biomedical Engineering, Pratt School of Engineering, Duke University, Durham, North Carolina 27708, United States
| | - Soumen Saha
- Department of Biomedical Engineering, Pratt School of Engineering, Duke University, Durham, North Carolina 27708, United States
| | - Jayanta Bhattacharya
- Center for Biomedical Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Nadia Kirmani
- Department of Biology, Trinity College of Arts and Sciences, Duke University, Durham, North Carolina 27708, United States
| | - Parisa Yousefpour
- Department of Biomedical Engineering, Pratt School of Engineering, Duke University, Durham, North Carolina 27708, United States
| | - Michael Dzuricky
- Department of Biomedical Engineering, Pratt School of Engineering, Duke University, Durham, North Carolina 27708, United States
| | - Nikita Zakharov
- Department of Biomedical Engineering, Pratt School of Engineering, Duke University, Durham, North Carolina 27708, United States
| | - Xinghai Li
- Department of Biomedical Engineering, Pratt School of Engineering, Duke University, Durham, North Carolina 27708, United States
| | - Ivan Spasojevic
- Department of Medicine, Pharmaceutical Research PK/PD Core Laboratory, Duke University Medical Center, Durham, North Carolina 27710, United States
| | - Kenneth Young
- Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina 27710, United States
| | - Ashutosh Chilkoti
- Department of Biomedical Engineering, Pratt School of Engineering, Duke University, Durham, North Carolina 27708, United States
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12
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Katyal P, Meleties M, Montclare JK. Self-Assembled Protein- and Peptide-Based Nanomaterials. ACS Biomater Sci Eng 2019; 5:4132-4147. [PMID: 33417774 DOI: 10.1021/acsbiomaterials.9b00408] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Considerable effort has been devoted to generating novel protein- and peptide-based nanomaterials with their applications in a wide range of fields. Specifically, the unique property of proteins to self-assemble has been utilized to create a variety of nanoassemblies, which offer significant possibilities for next-generation biomaterials. In this minireview, we describe self-assembled protein- and peptide-based nanomaterials with focus on nanofibers and nanoparticles. Their applications in delivering therapeutic drugs and genes are discussed.
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Affiliation(s)
- Priya Katyal
- Department of Chemical and Biomolecular Engineering, Tandon School of Engineering, New York University, Brooklyn, New York 11201, United States
| | - Michael Meleties
- Department of Chemical and Biomolecular Engineering, Tandon School of Engineering, New York University, Brooklyn, New York 11201, United States
| | - Jin K Montclare
- Department of Chemical and Biomolecular Engineering, Tandon School of Engineering, New York University, Brooklyn, New York 11201, United States.,Department of Radiology, New York University Langone Health, New York, New York 10016, United States.,Department of Biomaterials, College of Dentistry, New York University, New York, New York 10010, United States.,Department of Chemistry, New York University, New York, New York 10003, United States
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13
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Mozhdehi D, Luginbuhl KM, Simon JR, Dzuricky M, Berger R, Varol HS, Huang FC, Buehne KL, Mayne NR, Weitzhandler I, Bonn M, Parekh SH, Chilkoti A. Genetically encoded lipid-polypeptide hybrid biomaterials that exhibit temperature-triggered hierarchical self-assembly. Nat Chem 2018; 10:496-505. [PMID: 29556049 PMCID: PMC6676901 DOI: 10.1038/s41557-018-0005-z] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Accepted: 01/11/2018] [Indexed: 11/09/2022]
Abstract
Post-translational modification of proteins is a strategy widely used in biological systems. It expands the diversity of the proteome and allows for tailoring of both the function and localization of proteins within cells as well as the material properties of structural proteins and matrices. Despite their ubiquity in biology, with a few exceptions, the potential of post-translational modifications in biomaterials synthesis has remained largely untapped. As a proof of concept to demonstrate the feasibility of creating a genetically encoded biohybrid material through post-translational modification, we report here the generation of a family of three stimulus-responsive hybrid materials-fatty-acid-modified elastin-like polypeptides-using a one-pot recombinant expression and post-translational lipidation methodology. These hybrid biomaterials contain an amphiphilic domain, composed of a β-sheet-forming peptide that is post-translationally functionalized with a C14 alkyl chain, fused to a thermally responsive elastin-like polypeptide. They exhibit temperature-triggered hierarchical self-assembly across multiple length scales with varied structure and material properties that can be controlled at the sequence level.
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Affiliation(s)
- Davoud Mozhdehi
- NSF Research Triangle Materials Research Science and Engineering Center, Department of Biomedical Engineering, Duke University, Durham, NC, USA
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | - Kelli M Luginbuhl
- NSF Research Triangle Materials Research Science and Engineering Center, Department of Biomedical Engineering, Duke University, Durham, NC, USA
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | - Joseph R Simon
- NSF Research Triangle Materials Research Science and Engineering Center, Department of Biomedical Engineering, Duke University, Durham, NC, USA
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | - Michael Dzuricky
- NSF Research Triangle Materials Research Science and Engineering Center, Department of Biomedical Engineering, Duke University, Durham, NC, USA
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | - Rüdiger Berger
- Physics at Interfaces, Max Planck Institute for Polymer Research, Mainz, Germany
| | - H Samet Varol
- Department of Molecular Spectroscopy, Max Planck Institute for Polymer Research, Mainz, Germany
| | - Fred C Huang
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | - Kristen L Buehne
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | - Nicholas R Mayne
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | - Isaac Weitzhandler
- NSF Research Triangle Materials Research Science and Engineering Center, Department of Biomedical Engineering, Duke University, Durham, NC, USA
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | - Mischa Bonn
- Department of Molecular Spectroscopy, Max Planck Institute for Polymer Research, Mainz, Germany
| | - Sapun H Parekh
- Department of Molecular Spectroscopy, Max Planck Institute for Polymer Research, Mainz, Germany
| | - Ashutosh Chilkoti
- NSF Research Triangle Materials Research Science and Engineering Center, Department of Biomedical Engineering, Duke University, Durham, NC, USA.
- Department of Biomedical Engineering, Duke University, Durham, NC, USA.
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14
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Choi SM, Chaudhry P, Zo SM, Han SS. Advances in Protein-Based Materials: From Origin to Novel Biomaterials. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1078:161-210. [PMID: 30357624 DOI: 10.1007/978-981-13-0950-2_10] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Biomaterials play a very important role in biomedicine and tissue engineering where they directly affect the cellular activities and their microenvironment . Myriad of techniques have been employed to fabricate a vast number natural, artificial and recombinant polymer s in order to harness these biomaterials in tissue regene ration , drug delivery and various other applications. Despite of tremendous efforts made in this field during last few decades, advanced and new generation biomaterials are still lacking. Protein based biomaterials have emerged as an attractive alternatives due to their intrinsic properties like cell to cell interaction , structural support and cellular communications. Several protein based biomaterials like, collagen , keratin , elastin , silk protein and more recently recombinant protein s are being utilized in a number of biomedical and biotechnological processes. These protein-based biomaterials have enormous capabilities, which can completely revolutionize the biomaterial world. In this review, we address an up-to date review on the novel, protein-based biomaterials used for biomedical field including tissue engineering, medical science, regenerative medicine as well as drug delivery. Further, we have also emphasized the novel fabrication techniques associated with protein-based materials and implication of these biomaterials in the domain of biomedical engineering .
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Affiliation(s)
- Soon Mo Choi
- Regional Research Institute for Fiber&Fashion Materials, Yeungnam University, Gyeongsan, South Korea
| | - Prerna Chaudhry
- School of Chemical Engineering, Yeungnam University, Gyeongsan, South Korea
| | - Sun Mi Zo
- School of Chemical Engineering, Yeungnam University, Gyeongsan, South Korea
| | - Sung Soo Han
- School of Chemical Engineering, Yeungnam University, Gyeongsan, South Korea.
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15
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Ibáñez‐Fonseca A, Ramos TL, González de Torre I, Sánchez‐Abarca LI, Muntión S, Arias FJ, Cañizo MC, Alonso M, Sánchez‐Guijo F, Rodríguez‐Cabello JC. Biocompatibility of two model elastin‐like recombinamer‐based hydrogels formed through physical or chemical cross‐linking for various applications in tissue engineering and regenerative medicine. J Tissue Eng Regen Med 2017; 12:e1450-e1460. [DOI: 10.1002/term.2562] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 07/08/2017] [Accepted: 08/25/2017] [Indexed: 12/17/2022]
Affiliation(s)
| | - Teresa L. Ramos
- Instituto de Investigación Biomédica de Salamanca (IBSAL)Hospital Universitario de Salamanca Salamanca Spain
- Unidad de Terapia Celular, Servicio de HematologíaHospital Universitario de Salamanca Salamanca Spain
| | | | - Luis Ignacio Sánchez‐Abarca
- Instituto de Investigación Biomédica de Salamanca (IBSAL)Hospital Universitario de Salamanca Salamanca Spain
- Unidad de Terapia Celular, Servicio de HematologíaHospital Universitario de Salamanca Salamanca Spain
| | - Sandra Muntión
- Instituto de Investigación Biomédica de Salamanca (IBSAL)Hospital Universitario de Salamanca Salamanca Spain
- Unidad de Terapia Celular, Servicio de HematologíaHospital Universitario de Salamanca Salamanca Spain
| | | | - María Consuelo Cañizo
- Instituto de Investigación Biomédica de Salamanca (IBSAL)Hospital Universitario de Salamanca Salamanca Spain
- Unidad de Terapia Celular, Servicio de HematologíaHospital Universitario de Salamanca Salamanca Spain
| | - Matilde Alonso
- BIOFORGE LabUniversity of Valladolid–CIBER‐BBN Valladolid Spain
| | - Fermín Sánchez‐Guijo
- Instituto de Investigación Biomédica de Salamanca (IBSAL)Hospital Universitario de Salamanca Salamanca Spain
- Unidad de Terapia Celular, Servicio de HematologíaHospital Universitario de Salamanca Salamanca Spain
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16
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Fazelinia H, Balog ERM, Desireddy A, Chakraborty S, Sheehan CJ, Strauss CE, Martinez JS. Genetically Engineered Elastomeric Polymer Network through Protein Zipper Assembly. ChemistrySelect 2017. [DOI: 10.1002/slct.201700456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Hossein Fazelinia
- Bioscience Division, MS 888 Los Alamos National Laboratory NM 87545 USA
| | - Eva Rose M. Balog
- Center for Intergrated Nanotechnologies Los Alamos National Laboratory, MS K771 Los Alamos NM 87545 USA
| | - Anil Desireddy
- Center for Intergrated Nanotechnologies Los Alamos National Laboratory, MS K771 Los Alamos NM 87545 USA
| | - Saumen Chakraborty
- Center for Intergrated Nanotechnologies Los Alamos National Laboratory, MS K771 Los Alamos NM 87545 USA
| | - Chris J. Sheehan
- Center for Intergrated Nanotechnologies Los Alamos National Laboratory, MS K771 Los Alamos NM 87545 USA
| | | | - Jennifer S. Martinez
- Center for Intergrated Nanotechnologies Los Alamos National Laboratory, MS K771 Los Alamos NM 87545 USA
- Institute for Material Science Los Alamos National Laboratory NM 87545 USA
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17
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Le DHT, Okubo T, Sugawara-Narutaki A. Beaded nanofibers assembled from double-hydrophobic elastin-like block polypeptides: Effects of trifluoroethanol. Biopolymers 2016; 103:175-85. [PMID: 25363567 DOI: 10.1002/bip.22582] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 10/28/2014] [Accepted: 10/29/2014] [Indexed: 11/07/2022]
Abstract
A "double-hydrophobic" elastin-like triblock polypeptide GPG has been constructed by mimicking the localization of proline- and glycine-rich hydrophobic domains of native elastin, a protein that provides elasticity and resilience to connective tissues. In this study, the effects of trifluoroethanol (TFE), an organic solvent that strongly affects secondary structures of polypeptides on self-assembly of GPG in aqueous solutions were systematically studied. Beaded nanofiber formation of GPG, where nanoparticles are initially formed by coacervation of the polypeptides followed by their connection into one-dimensional nanostructures, is accelerated by the addition of TFE at the concentrations up to 30% (v/v), whereas aggregates of nanoparticles are formed at 60% TFE. The concentration-dependent assembly pattern discussed is based on the influence of TFE on the secondary structures of GPG. Well-defined nanofibers whose diameter and secondary structures are controlled by TFE concentration may be ideal building blocks for constructing bioelastic materials in tissue engineering.
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Affiliation(s)
- Duc H T Le
- Department of Chemical System Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
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18
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Navon Y, Bitton R. Elastin-Like Peptides (ELPs) - Building Blocks for Stimuli-Responsive Self-Assembled Materials. Isr J Chem 2016. [DOI: 10.1002/ijch.201500016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yotam Navon
- Chemical Engineering; Ben-Gurion University of the Negev; Beer-Sheva 84105 Israel
| | - Ronit Bitton
- Chemical Engineering; Ben-Gurion University of the Negev; Beer-Sheva 84105 Israel
- Ilse Katz Institute for Nanoscale Science and Technology Institution; Ben-Gurion University of the Negev; Beer-Sheva 84105 Israel)
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19
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Jungst T, Smolan W, Schacht K, Scheibel T, Groll J. Strategies and Molecular Design Criteria for 3D Printable Hydrogels. Chem Rev 2015; 116:1496-539. [PMID: 26492834 DOI: 10.1021/acs.chemrev.5b00303] [Citation(s) in RCA: 410] [Impact Index Per Article: 45.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Tomasz Jungst
- Department for Functional Materials in Medicine and Dentistry, University of Würzburg , Pleicherwall 2, 97070 Würzburg, Germany
| | - Willi Smolan
- Department for Functional Materials in Medicine and Dentistry, University of Würzburg , Pleicherwall 2, 97070 Würzburg, Germany
| | - Kristin Schacht
- Chair of Biomaterials, Faculty of Engineering Science, University of Bayreuth , Universitätsstrasse 30, 95447 Bayreuth, Germany
| | - Thomas Scheibel
- Chair of Biomaterials, Faculty of Engineering Science, University of Bayreuth , Universitätsstrasse 30, 95447 Bayreuth, Germany
| | - Jürgen Groll
- Department for Functional Materials in Medicine and Dentistry, University of Würzburg , Pleicherwall 2, 97070 Würzburg, Germany
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20
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Santo VE, Prieto S, Testera AM, Arias FJ, Alonso M, Mano JF, Rodriguez-Cabello JC. Temperature-responsive bioactive hydrogels based on a multifunctional recombinant elastin-like polymer. BIOMATERIALS AND BIOMECHANICS IN BIOENGINEERING 2015. [DOI: 10.12989/bme.2015.2.1.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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21
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Simmers P, Gishto A, Vyavahare N, Kothapalli CR. Nitric oxide stimulates matrix synthesis and deposition by adult human aortic smooth muscle cells within three-dimensional cocultures. Tissue Eng Part A 2015; 21:1455-70. [PMID: 25597545 DOI: 10.1089/ten.tea.2014.0363] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Vascular diseases are characterized by the over-proliferation and migration of aortic smooth muscle cells (SMCs), and degradation of extracellular matrix (ECM) within the vessel wall, leading to compromise in cell-cell and cell-matrix signaling pathways. Tissue engineering approaches to regulate SMC over-proliferation and enhance healthy ECM synthesis showed promise, but resulted in low crosslinking efficiency. Here, we report the benefits of exogenous nitric oxide (NO) cues, delivered from S-Nitrosoglutathione (GSNO), to cell proliferation and matrix deposition by adult human aortic SMCs (HA-SMCs) within three-dimensional (3D) biomimetic cocultures. A coculture platform with two adjacent, permeable 3D culture chambers was developed to enable paracrine signaling between vascular cells. HA-SMCs were cultured in these chambers within collagen hydrogels, either alone or in the presence of human aortic endothelial cells (HA-ECs) cocultures, and exogenously supplemented with varying GSNO dosages (0-100 nM) for 21 days. Results showed that EC cocultures stimulated SMC proliferation within GSNO-free cultures. With increasing GSNO concentration, HA-SMC proliferation decreased in the presence or absence of EC cocultures, while HA-EC proliferation increased. GSNO (100 nM) significantly enhanced the protein amounts synthesized by HA-SMCs, in the presence or absence of EC cocultures, while lower dosages (1-10 nM) offered marginal benefits. Multi-fold increases in the synthesis and deposition of elastin, glycosaminoglycans, hyaluronic acid, and lysyl oxidase crosslinking enzyme (LOX) were noted at higher GSNO dosages, and coculturing with ECs significantly furthered these trends. Similar increases in TIMP-1 and MMP-9 levels were noted within cocultures with increasing GSNO dosages. Such increases in matrix synthesis correlated with NO-stimulated increases in endothelial nitric oxide synthase (eNOS) and inducible nitric oxide synthase (iNOS) expression within EC and SMC cultures, respectively. Results attest to the benefits of delivering NO cues to suppress SMC proliferation and promote robust ECM synthesis and deposition by adult human SMCs, with significant applications in tissue engineering, biomaterial scaffold development, and drug delivery.
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Affiliation(s)
- Phillip Simmers
- 1 Department of Chemical and Biomedical Engineering, Cleveland State University , Cleveland, Ohio
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22
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Testera AM, Girotti A, de Torre IG, Quintanilla L, Santos M, Alonso M, Rodríguez-Cabello JC. Biocompatible elastin-like click gels: design, synthesis and characterization. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2015; 26:105. [PMID: 25663022 DOI: 10.1007/s10856-015-5435-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Accepted: 11/23/2014] [Indexed: 06/04/2023]
Abstract
Elastin-like recombinamer click gels (ELR-CGs) for biomedical applications, such as drug delivery or tissue engineering, have been developed by taking advantage of the click reaction (CuAAC) in the absence of traditional crosslinking agents. ELRs are functionalized with alkyne and azide groups using conventional chemical techniques to introduce the reactivity required to carry out the 1,3-dipolar cycloaddition under mild biocompatible conditions, with no toxic by-products and in short reaction times. Hydrogels with moduli in the range 1,000-10,000 Pa have been synthesized, characterized, and tested in vitro against several cell types. The cells embedded into ELR-CGs possessed high viability and proliferation rate. The mechanical properties, porosity and swelling of the resulting ELR-CGs can easily be tuned by adjusting the ELR concentration. We also show that it is possible to replicate different patterns on the hydrogel surface, thus allowing the use of this type of hydrogel to improve applications that require cell guidance or even differentiation depending on the surface topography.
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Affiliation(s)
- Ana M Testera
- Bioforge Group, University of Valladolid, Edificio I+D, Paseo de Belén, 11, 47011, Valladolid, Spain
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23
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Kimmerling K, Furman B, Mangiapani D, Moverman M, Sinclair S, Huebner J, Chilkoti A, Kraus V, Setton L, Guilak F, Olson S. Sustained intra-articular delivery of IL-1RA from a thermally-responsive elastin-like polypeptide as a therapy for post-traumatic arthritis. Eur Cell Mater 2015; 29:124-39; discussion 139-40. [PMID: 25636786 PMCID: PMC4358781 DOI: 10.22203/ecm.v029a10] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Post-traumatic arthritis (PTA) is a rapidly progressive form of arthritis that develops due to joint injury, including articular fracture. Current treatments are limited to surgical restoration and stabilization of the joint; however, evidence suggests that PTA progression is mediated by the upregulation of pro-inflammatory cytokines, such as interleukin-1 (IL-1) or tumor necrosis factor-α (TNF-α). Although these cytokines provide potential therapeutic targets for PTA, intra-articular injections of anti-cytokine therapies have proven difficult due to rapid clearance from the joint space. In this study, we examined the ability of a cross-linked elastin-like polypeptide (xELP) drug depot to provide sustained intra-articular delivery of IL-1 and TNF-α inhibitors as a beneficial therapy. Mice sustained a closed intra-articular tibial plateau fracture; treatment groups received a single intra-articular injection of drug encapsulated in xELP. Arthritic changes were assessed 4 and 8 weeks after fracture. Inhibition of IL-1 significantly reduced the severity of cartilage degeneration and synovitis. Inhibition of TNF-α alone or with IL-1 led to deleterious effects in bone morphology, articular cartilage degeneration, and synovitis. These findings suggest that IL-1 plays a critical role in the pathogenesis of PTA following articular fracture, and sustained intra-articular cytokine inhibition may provide a therapeutic approach for reducing or preventing joint degeneration following trauma.
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Affiliation(s)
- K.A. Kimmerling
- Department of Orthopaedic Surgery, Duke University Medical Center, Durham, NC, USA,Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | - B.D. Furman
- Department of Orthopaedic Surgery, Duke University Medical Center, Durham, NC, USA
| | - D.S. Mangiapani
- Department of Orthopaedic Surgery, Duke University Medical Center, Durham, NC, USA
| | - M.A. Moverman
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | - S.M. Sinclair
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | - J.L. Huebner
- Duke Molecular Physiology Institute, Durham, NC, USA
| | - A. Chilkoti
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | - V.B. Kraus
- Duke Molecular Physiology Institute, Durham, NC, USA,Department of Medicine, Duke University Medical Center, Durham, NC, USA
| | - L.A. Setton
- Department of Orthopaedic Surgery, Duke University Medical Center, Durham, NC, USA,Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | - F. Guilak
- Department of Orthopaedic Surgery, Duke University Medical Center, Durham, NC, USA,Department of Biomedical Engineering, Duke University, Durham, NC, USA
| | - S.A. Olson
- Department of Biomedical Engineering, Duke University, Durham, NC, USA,Address for correspondence: Steven A. Olson, M.D., Duke University Medical Center, Box 3389, Durham, NC 27710, USA, Telephone Number: 1-919-668-3000, FAX Number: 1-919-668-2933,
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24
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Green EM, Peter Winlove C. The structure and mechanical properties of the proteins of lamprey cartilage. Biopolymers 2015; 103:187-202. [DOI: 10.1002/bip.22583] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Revised: 10/14/2014] [Accepted: 10/27/2014] [Indexed: 11/10/2022]
Affiliation(s)
- Ellen M. Green
- College of Engineering, Mathematics and Physical Sciences, School of Physics; University of Exeter, Exeter, EX4 4QL; United Kingdom
| | - C. Peter Winlove
- College of Engineering, Mathematics and Physical Sciences, School of Physics; University of Exeter, Exeter, EX4 4QL; United Kingdom
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25
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Yano S, Mori M, Teramoto N, Iisaka M, Suzuki N, Noto M, Kaimoto Y, Kakimoto M, Yamada M, Shiratsuchi E, Shimasaki T, Shibata M. Preparation of photocrosslinked fish elastin polypeptide/microfibrillated cellulose composite gels with elastic properties for biomaterial applications. Mar Drugs 2015; 13:338-53. [PMID: 25584682 PMCID: PMC4306940 DOI: 10.3390/md13010338] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Accepted: 12/26/2014] [Indexed: 01/13/2023] Open
Abstract
Photocrosslinked hydrogels reinforced by microfibrillated cellulose (MFC) were prepared from a methacrylate-functionalized fish elastin polypeptide and MFC dispersed in dimethylsulfoxide (DMSO). First, a water-soluble elastin peptide with a molecular weight of ca. 500 g/mol from the fish bulbus arteriosus was polymerized by N,N'-dicyclohexylcarbodiimide (DCC), a condensation reagent, and then modified with 2-isocyanatoethyl methacrylate (MOI) to yield a photocrosslinkable fish elastin polypeptide. The product was dissolved in DMSO and irradiated with UV light in the presence of a radical photoinitiator. We obtained hydrogels successfully by substitution of DMSO with water. The composite gel with MFC was prepared by UV irradiation of the photocrosslinkable elastin polypeptide mixed with dispersed MFC in DMSO, followed by substitution of DMSO with water. The tensile test of the composite gels revealed that the addition of MFC improved the tensile properties, and the shape of the stress-strain curve of the composite gel became more similar to the typical shape of an elastic material with an increase of MFC content. The rheology measurement showed that the elastic modulus of the composite gel increased with an increase of MFC content. The cell proliferation test on the composite gel showed no toxicity.
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Affiliation(s)
- Shinya Yano
- Department of Life and Environmental Sciences, Faculty of Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan.
| | - Megumi Mori
- Department of Life and Environmental Sciences, Faculty of Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan.
| | - Naozumi Teramoto
- Department of Life and Environmental Sciences, Faculty of Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan.
| | - Makoto Iisaka
- Department of Life and Environmental Sciences, Faculty of Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan.
| | - Natsumi Suzuki
- Department of Life and Environmental Sciences, Faculty of Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan.
| | - Masanari Noto
- Department of Life and Environmental Sciences, Faculty of Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan.
| | - Yasuko Kaimoto
- Department of Life and Environmental Sciences, Faculty of Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan.
| | - Masashi Kakimoto
- Department of Life and Environmental Sciences, Faculty of Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan.
| | - Michio Yamada
- Research & Development Division, Hayashikane Sangyo Co., Ltd., 2-4-8 Yamato-machi, Shimonoseki, Yamaguchi 750-8608, Japan.
| | - Eri Shiratsuchi
- Research & Development Division, Hayashikane Sangyo Co., Ltd., 2-4-8 Yamato-machi, Shimonoseki, Yamaguchi 750-8608, Japan.
| | - Toshiaki Shimasaki
- Department of Life and Environmental Sciences, Faculty of Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan.
| | - Mitsuhiro Shibata
- Department of Life and Environmental Sciences, Faculty of Engineering, Chiba Institute of Technology, 2-17-1 Tsudanuma, Narashino, Chiba 275-0016, Japan.
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26
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Abstract
This review describes nanoparticles made from protein by self-assembly or desolvation as carriers for the delivery of therapeutic proteins.
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Affiliation(s)
- L. P. Herrera Estrada
- School of Chemical & Biomolecular Engineering. Georgia Institute of Technology
- Atlanta
- USA
| | - J. A. Champion
- School of Chemical & Biomolecular Engineering. Georgia Institute of Technology
- Atlanta
- USA
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27
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Kinikoglu B, Damour O, Hasirci V. Tissue engineering of oral mucosa: a shared concept with skin. J Artif Organs 2014; 18:8-19. [PMID: 25326194 DOI: 10.1007/s10047-014-0798-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Accepted: 10/07/2014] [Indexed: 12/17/2022]
Abstract
Tissue-engineered oral mucosa, in the form of epithelial cell sheets or full-thickness oral mucosa equivalents, is a potential solution for many patients with congenital defects or with tissue loss due to diseases or tumor excision following a craniofacial cancer diagnosis. In the laboratory, it further serves as an in vitro model, alternative to in vivo testing of oral care products, and provides insight into the behavior of the oral mucosal cells in healthy and pathological tissues. This review covers the old and new generation scaffold types and materials used in oral mucosa engineering; discusses similarities and differences between oral mucosa and skin, the methods developed to reconstruct oral mucosal defects; and ends with future perspectives on oral mucosa engineering.
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Affiliation(s)
- Beste Kinikoglu
- Department of Medical Biology, School of Medicine, Acibadem University, 34742, Istanbul, Turkey,
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28
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Li Y, Chen X, Ribeiro AJ, Jensen ED, Holmberg KV, Rodriguez-Cabello JC, Aparicio C. Hybrid nanotopographical surfaces obtained by biomimetic mineralization of statherin-inspired elastin-like recombinamers. Adv Healthc Mater 2014; 3:1638-47. [PMID: 24700504 DOI: 10.1002/adhm.201400015] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Revised: 02/12/2014] [Indexed: 11/06/2022]
Abstract
Modification of surfaces mimicking unique chemical and physical features of mineralized tissues is of major interest for obtaining biomaterials for replacing and regenerating biological tissues. Here, human salivary statherin-inspired genetically engineered recombinamers (ELRs, HSS) on biomedical surfaces regulates mineralization to form an amorphous-calcium-phosphate (ACP) layer that reproduces the original substrate nanotopography. The HSS-ELRs carry a statherin-derived peptide with high affinity to tooth enamel. They are tethered to nanorough surfaces and mineralized using an enzyme-directed process. A homogeneous layer of ACP-minerals forms on HSS-coated surfaces retaining the original nanotopography of the substrate. In contrast, biomineralization of control surfaces results in uncontrolled growth of minerals. This suggest the statherin-inspired ELRs have ability to induce and control growth of the minerals on the biofunctional surfaces. Likely, the HSS-ELR coating have similar bioactivity to that of statherin in human saliva. The hybrid nanorough surfaces improve adhesion and differentiation of preosteoblasts and show potential for dental and orthopedic implants integration. This method enables the combination and tailoring of nanotopographical and biochemical cues to design functionalized surfaces to investigate and potentially direct the stem cell fate.
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Affiliation(s)
- Yuping Li
- Minnesota Dental Research Center for Biomaterials and Biomechanics; Department of Restorative Sciences; School of Dentistry, University of Minnesota; 55455 Minneapolis MN USA
| | - Xi Chen
- Minnesota Dental Research Center for Biomaterials and Biomechanics; Department of Restorative Sciences; School of Dentistry, University of Minnesota; 55455 Minneapolis MN USA
| | - Artur J. Ribeiro
- G. I. R. Bioforge, Edificio I+D; University of Valladolid; CIBER-BBN, Paseo de Belen 11 47011 Valladolid Spain
| | - Eric D. Jensen
- Department of Diagnostic and Biological Sciences; School of Dentistry, University of Minnesota; 55455 Minneapolis MN USA
| | - Kyle V. Holmberg
- Minnesota Dental Research Center for Biomaterials and Biomechanics; Department of Restorative Sciences; School of Dentistry, University of Minnesota; 55455 Minneapolis MN USA
| | - J. Carlos Rodriguez-Cabello
- G. I. R. Bioforge, Edificio I+D; University of Valladolid; CIBER-BBN, Paseo de Belen 11 47011 Valladolid Spain
| | - Conrado Aparicio
- Minnesota Dental Research Center for Biomaterials and Biomechanics; Department of Restorative Sciences; School of Dentistry, University of Minnesota; 55455 Minneapolis MN USA
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MacEwan SR, Chilkoti A. Applications of elastin-like polypeptides in drug delivery. J Control Release 2014; 190:314-30. [PMID: 24979207 DOI: 10.1016/j.jconrel.2014.06.028] [Citation(s) in RCA: 176] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Revised: 06/17/2014] [Accepted: 06/18/2014] [Indexed: 01/08/2023]
Abstract
Elastin-like polypeptides (ELPs) are biopolymers inspired by human elastin. Their lower critical solution temperature phase transition behavior and biocompatibility make them useful materials for stimulus-responsive applications in biological environments. Due to their genetically encoded design and recombinant synthesis, the sequence and size of ELPs can be exactly defined. These design parameters control the structure and function of the ELP with a precision that is unmatched by synthetic polymers. Due to these attributes, ELPs have been used extensively for drug delivery in a variety of different embodiments-as soluble macromolecular carriers, self-assembled nanoparticles, cross-linked microparticles, or thermally coacervated depots. These ELP systems have been used to deliver biologic therapeutics, radionuclides, and small molecule drugs to a variety of anatomical sites for the treatment of diseases including cancer, type 2 diabetes, osteoarthritis, and neuroinflammation.
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Affiliation(s)
- Sarah R MacEwan
- Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA; Research Triangle MRSEC, Duke University, Durham, NC 27708, USA
| | - Ashutosh Chilkoti
- Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA; Research Triangle MRSEC, Duke University, Durham, NC 27708, USA.
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Hsueh YS, Savitha S, Sadhasivam S, Lin FH, Shieh MJ. Design and synthesis of elastin-like polypeptides for an ideal nerve conduit in peripheral nerve regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 38:119-26. [PMID: 24656360 DOI: 10.1016/j.msec.2014.01.058] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Revised: 12/30/2013] [Accepted: 01/30/2014] [Indexed: 01/26/2023]
Abstract
The study involves design and synthesis of three different elastin like polypeptide (ELP) gene monomers namely ELP1, ELP2 and ELP3 that encode for ELP proteins. The formed ELPs were assessed as an ideal nerve conduit for peripheral nerve regeneration. ELP1 was constructed with a small elongated pentapeptide carrying VPGVG sequence to mimic the natural polypeptide ELP. The ELP2 was designed by the incorporation of 4-penta peptide chains to improve the biocompatibility and mechanical strength. Thus, the third position in unique VPGVG was replaced with alanine to VPAVG and in a similar way modified to VPGKG, VPGEG and VPGIG with the substitution of lysine, glutamic acid and isoleucine. In ELP3, fibronectin C5 domain endowed with REDV sequence was introduced to improve the cell attachment. The ELP1, ELP2 and ELP3 proteins expressed by Escherichia coli were purified by inverse transition cycling (ITC). The purified ELPs were confirmed by sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) and western blotting. The Schwann cell (SC) morphology and cell adhesion were assessed by fabrication of ELP membrane cross-linked with glutaraledhyde. The Schwann cell proliferation was measured by WST-1 assay. Immunofluorostaining of Schwann cells was accomplished with SC specific phenotypic marker, S100.
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Affiliation(s)
- Yu-Sheng Hsueh
- Institute of Biomedical Engineering, College of Engineering, National Taiwan University, Taipei 100, Taiwan; Institute of Biomedical Engineering, College of Medicine, National Taiwan University, Taipei 100, Taiwan
| | - S Savitha
- Institute of Biomedical Engineering, College of Engineering, National Taiwan University, Taipei 100, Taiwan; Department of Biotechnology, Sree Sastha Institute of Engineering and Technology, Chennai, India; Institute of Biomedical Engineering, College of Medicine, National Taiwan University, Taipei 100, Taiwan
| | - S Sadhasivam
- Division of Biomedical Engineering and Nanomedicine Research, National Health Research Institutes, Miaoli 350, Taiwan
| | - Feng-Huei Lin
- Institute of Biomedical Engineering, College of Engineering, National Taiwan University, Taipei 100, Taiwan; Division of Biomedical Engineering and Nanomedicine Research, National Health Research Institutes, Miaoli 350, Taiwan; Institute of Biomedical Engineering, College of Medicine, National Taiwan University, Taipei 100, Taiwan.
| | - Ming-Jium Shieh
- Institute of Biomedical Engineering, College of Engineering, National Taiwan University, Taipei 100, Taiwan; College of Medicine, National Taiwan University Hospital, Taipei 100, Taiwan; Institute of Biomedical Engineering, College of Medicine, National Taiwan University, Taipei 100, Taiwan
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Shang Y, Yan Y, Hou X. Stimuli responsive elastin-like polypeptides and applications in medicine and biotechnology. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2013; 25:101-20. [DOI: 10.1080/09205063.2013.841073] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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32
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Annabi N, Mithieux SM, Camci-Unal G, Dokmeci MR, Weiss AS, Khademhosseini A. Elastomeric Recombinant Protein-based Biomaterials. Biochem Eng J 2013; 77:110-118. [PMID: 23935392 DOI: 10.1016/j.bej.2013.05.006] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Elastomeric protein-based biomaterials, produced from elastin derivatives, are widely investigated as promising tissue engineering scaffolds due to their remarkable properties including substantial extensibility, long-term stability, self-assembly, high resilience upon stretching, low energy loss, and excellent biological activity. These elastomers are processed from different sources of soluble elastin such as animal-derived soluble elastin, recombinant human tropoelastin, and elastin-like polypeptides into various forms including three dimensional (3D) porous hydrogels, elastomeric films, and fibrous electrospun scaffolds. Elastin-based biomaterials have shown great potential for the engineering of elastic tissues such as skin, lung and vasculature. In this review, the synthesis and properties of various elastin-based elastomers with their applications in tissue engineering are described.
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Affiliation(s)
- Nasim Annabi
- Center for Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, 02139, USA ; Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139, USA ; Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, Massachusetts, 02139, USA
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Turner PA, Weeks CA, McMurphy AJ, Janorkar AV. Spheroid organization kinetics of H35 rat hepatoma model cell system on elastin-like polypeptide-polyethyleneimine copolymer substrates. J Biomed Mater Res A 2013; 102:852-61. [PMID: 23564487 DOI: 10.1002/jbm.a.34743] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2013] [Revised: 03/15/2013] [Accepted: 04/02/2013] [Indexed: 01/28/2023]
Abstract
Though two-dimensional systems have yielded some success in deriving morphological and functional markers of hepatocyte culture, they largely fail to capture the three-dimensional organization, long-term viability, and functionality of the hepatic tissue. We have engineered a system for inducing self-assembly of model H35 rat hepatoma spheroids using a copolymer comprised of biocompatible elastin-like polypeptide (ELP) chemically conjugated to positively charged polyethyleneimine (PEI). We have achieved a conjugation ratio of 30 mol %, though our studies analyzing spheroid organization kinetics indicate conjugate ratios of 5 mol % and greater to be optimal for cell culture based on least variability in spheroid sizes and minimum incidence of overgrown aggregates. Furthermore, our ELP-PEI system indicated the potential for influencing ultimate spheroid dimensions, with spheroid size inversely related to polyelectrolyte conjugation. Overall, this study provides a good starting point to investigate functional correlations between spheroid size and functional markers and their future use as an in vitro diagnostic or tissue engineering tool.
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Affiliation(s)
- Paul A Turner
- Department of Biomedical Materials Science, School of Dentistry, University of Mississippi Medical Center, Jackson, Mississippi
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Çelebi B, Cloutier M, Rabelo RB, Balloni R, Mantovani D, Bandiera A. Human elastin-based recombinant biopolymers improve mesenchymal stem cell differentiation. Macromol Biosci 2012; 12:1546-54. [PMID: 23042756 DOI: 10.1002/mabi.201200170] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2012] [Revised: 07/25/2012] [Indexed: 12/26/2022]
Abstract
Elastin-based polypeptides are a class of smart biopolymers representing an important model in the design of biomaterials. The combination of biomimetic materials with cells that have great plasticity provides a promising strategy for the realization of highly engineered cell-based constructs for regenerative medicine and tissue repair applications. Two recombinant biopolymers inspired by human elastin are assessed as coating agents to prepare biomimetic surfaces for cell culture. These substrates are assayed for hBM MSC culture. The coated surfaces are also characterized with AFM to evaluate the topographical features of the deposited biopolymers. The results suggest that the elastin-derived biomimetic surfaces play a stimulatory role on osteogenic differentiation of MSCs.
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Affiliation(s)
- Betül Çelebi
- Laboratory for Biomaterials and Bioengineering, Laval University, Quebec City, G1V 0A6, PQ, Canada
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35
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Ravichandran R, Venugopal JR, Sundarrajan S, Mukherjee S, Sridhar R, Ramakrishna S. Minimally invasive injectable short nanofibers of poly(glycerol sebacate) for cardiac tissue engineering. NANOTECHNOLOGY 2012; 23:385102. [PMID: 22947662 DOI: 10.1088/0957-4484/23/38/385102] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Myocardial tissue lacks the ability to appreciably regenerate itself following myocardial infarction (MI) which ultimately results in heart failure. Current therapies can only retard the progression of disease and hence tissue engineering strategies are required to facilitate the engineering of a suitable biomaterial to repair MI. The aim of this study was to investigate the in vitro properties of an injectable biomaterial for the regeneration of infarcted myocardium. Fabrication of core/shell fibers was by co-axial electrospinning, with poly(glycerol sebacate) (PGS) as core material and poly-L-lactic acid (PLLA) as shell material. The PLLA was removed by treatment of the PGS/PLLA core/shell fibers with DCM:hexane (2:1) to obtain PGS short fibers. These PGS short fibers offer the advantage of providing a minimally invasive injectable technique for the regeneration of infarcted myocardium. The scaffolds were characterized by SEM, FTIR and contact angle and cell-scaffold interactions using cardiomyocytes. The results showed that the cardiac marker proteins actinin, troponin, myosin heavy chain and connexin 43 were expressed more on short PGS fibers compared to PLLA nanofibers. We hypothesized that the injection of cells along with short PGS fibers would increase cell transplant retention and survival within the infarct, compared to the standard cell injection system.
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Affiliation(s)
- Rajeswari Ravichandran
- Healthcare and Energy Materials Laboratory, Nanoscience and Nanotechnology Initiative, Faculty of Engineering, National University of Singapore, Singapore
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36
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Abstract
Hybrid biomaterials are systems created from components of at least two distinct classes of molecules, for example, synthetic macromolecules and proteins or peptide domains. The synergistic combination of two types of structures may produce new materials that possess unprecedented levels of structural organization and novel properties. This Review focuses on biorecognition-driven self-assembly of hybrid macromolecules into functional hydrogel biomaterials. First, basic rules that govern the secondary structure of peptides are discussed, and then approaches to the specific design of hybrid systems with tailor-made properties are evaluated, followed by a discussion on the similarity of design principles of biomaterials and macromolecular therapeutics. Finally, the future of the field is briefly outlined.
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Affiliation(s)
- Jindřich Kopeček
- Department of Pharmaceutics and Pharmaceutical Chemistry, University of Utah, Salt Lake City, Utah 84112, USA.
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37
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Kopeček J, Yang J. “Intelligente” Biomaterialien durch Selbstorganisation von Hybridhydrogelen. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201201040] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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39
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Kobatake E, Takahashi R, Mie M. Construction of a bFGF-Tethered Extracellular Matrix Using a Coiled-Coil Helical Interaction. Bioconjug Chem 2011; 22:2038-42. [DOI: 10.1021/bc200249u] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Eiry Kobatake
- Department of Biological Information, Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology B-28 4259, Nagatsuta, Midori-ku, Yokohama, 226-8501, Japan
| | - Ryota Takahashi
- Department of Biological Information, Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology B-28 4259, Nagatsuta, Midori-ku, Yokohama, 226-8501, Japan
| | - Masayasu Mie
- Department of Biological Information, Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology B-28 4259, Nagatsuta, Midori-ku, Yokohama, 226-8501, Japan
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40
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Bellis SL. Advantages of RGD peptides for directing cell association with biomaterials. Biomaterials 2011; 32:4205-10. [PMID: 21515168 DOI: 10.1016/j.biomaterials.2011.02.029] [Citation(s) in RCA: 461] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2011] [Accepted: 02/12/2011] [Indexed: 12/14/2022]
Abstract
Despite many years of in vitro research confirming the effectiveness of RGD in promoting cell attachment to a wide variety of biomaterials, animal studies evaluating tissue responses to implanted RGD-functionalized substrates have yielded more variable results. The goals of this report are to present some of the reasons why cell culture studies may not always reliably predict in vivo responses, and more importantly, to highlight potential applications that may benefit from the use of RGD peptides.
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Affiliation(s)
- Susan L Bellis
- Department of Physiology and Biophysics, University of Alabama at Birmingham, Birmingham, AL 35294, USA.
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41
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Ma Z, Hong Y, Nelson DM, Pichamuthu JE, Leeson CE, Wagner WR. Biodegradable polyurethane ureas with variable polyester or polycarbonate soft segments: effects of crystallinity, molecular weight, and composition on mechanical properties. Biomacromolecules 2011; 12:3265-74. [PMID: 21755999 DOI: 10.1021/bm2007218] [Citation(s) in RCA: 149] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Biodegradable polyurethane urea (PUU) elastomers are ideal candidates for fabricating tissue engineering scaffolds with mechanical properties akin to strong and resilient soft tissues. PUU with a crystalline poly(ε-caprolactone) (PCL) macrodiol soft segment (SS) showed good elasticity and resilience at small strains (<50%) but showed poor resilience under large strains because of stress-induced crystallization of the PCL segments, with a permanent set of 677 ± 30% after tensile failure. To obtain softer and more resilient PUUs, we used noncrystalline poly(trimethylene carbonate) (PTMC) or poly(δ-valerolactone-co-ε-caprolactone) (PVLCL) macrodiols of different molecular weights as SSs that were reacted with 1,4-diisocyanatobutane and chain extended with 1,4-diaminobutane. Mechanical properties of the PUUs were characterized by tensile testing with static or cyclic loading and dynamic mechanical analysis. All of the PUUs synthesized showed large elongations at break (800-1400%) and high tensile strength (30-60 MPa). PUUs with noncrystalline SSs all showed improved elasticity and resilience relative to the crystalline PCL-based PUU, especially for the PUUs with high molecular weight SSs (PTMC 5400 M(n) and PVLCL 6000 M(n)), of which the permanent deformation after tensile failure was only 12 ± 7 and 39 ± 4%, respectively. The SS molecular weight also influenced the tensile modulus in an inverse fashion. Accelerated degradation studies in PBS containing 100 U/mL lipase showed significantly greater mass loss for the two polyester-based PUUs versus the polycarbonate-based PUU and for PVLCL versus PCL polyester PUUs. Basic cytocompatibility was demonstrated with primary vascular smooth muscle cell culture. The synthesized families of PUUs showed variable elastomeric behavior that could be explained in terms of the underlying molecular design and crystalline behavior. Depending on the application target of interest, these materials may provide options or guidance for soft tissue scaffold development.
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Affiliation(s)
- Zuwei Ma
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania 15219, United States
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Kinikoglu B, Rodríguez-Cabello JC, Damour O, Hasirci V. A smart bilayer scaffold of elastin-like recombinamer and collagen for soft tissue engineering. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2011; 22:1541-1554. [PMID: 21505829 DOI: 10.1007/s10856-011-4315-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2010] [Accepted: 04/04/2011] [Indexed: 05/30/2023]
Abstract
Elastin-like recombinamers (ELRs) are smart, protein-based polymers designed with desired peptide sequences using recombinant DNA technology. The aim of the present study was to produce improved tissue engineering scaffolds from collagen and an elastin-like protein tailored to contain the cell adhesion peptide RGD, and to investigate the structural and mechanical capacities of the resulting scaffolds (foams, fibers and foam-fiber bilayer scaffolds). The results of the scanning electron microscopy, mercury porosimetry and mechanical testing indicated that incorporation of ELR into the scaffolds improved the uniformity and continuity of the pore network, decreased the pore size (from 200 to 20 μm) and the fiber diameter (from 1.179 μm to 306 nm), broadened the pore size distribution (from 70-200 to 4-200 μm) and increased their flexibility (from 0.007 to 0.011 kPa⁻¹). Culture of human fibroblasts and epithelial cells in ELR-collagen scaffolds showed the positive contribution of ELR on proliferation of both types of cells.
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Affiliation(s)
- Beste Kinikoglu
- Banque de Tissus et Cellules, Hospices Civils de Lyon, 69437 Lyon, France
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Prieto S, Shkilnyy A, Rumplasch C, Ribeiro A, Arias FJ, Rodríguez-Cabello JC, Taubert A. Biomimetic Calcium Phosphate Mineralization with Multifunctional Elastin-Like Recombinamers. Biomacromolecules 2011; 12:1480-6. [DOI: 10.1021/bm200287c] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Susana Prieto
- GIR Bioforge, University of Valladolid, E-47011 Valladolid, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Valladolid, Spain
| | - Andriy Shkilnyy
- Institute of Chemistry, University of Potsdam, D-14476 Golm, Germany
- Max-Planck-Institute of Colloids and Interfaces, D-14476 Golm, Germany
| | - Claudia Rumplasch
- Institute of Chemistry, University of Potsdam, D-14476 Golm, Germany
| | - Artur Ribeiro
- GIR Bioforge, University of Valladolid, E-47011 Valladolid, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Valladolid, Spain
| | - F. Javier Arias
- GIR Bioforge, University of Valladolid, E-47011 Valladolid, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Valladolid, Spain
| | - J. Carlos Rodríguez-Cabello
- GIR Bioforge, University of Valladolid, E-47011 Valladolid, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Valladolid, Spain
| | - Andreas Taubert
- Institute of Chemistry, University of Potsdam, D-14476 Golm, Germany
- Max-Planck-Institute of Colloids and Interfaces, D-14476 Golm, Germany
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44
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Urry DW, Urry KD, Szaflarski W, Nowicki M. Elastic-contractile model proteins: Physical chemistry, protein function and drug design and delivery. Adv Drug Deliv Rev 2010; 62:1404-55. [PMID: 20655344 DOI: 10.1016/j.addr.2010.07.001] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2010] [Revised: 07/08/2010] [Accepted: 07/09/2010] [Indexed: 11/25/2022]
Abstract
This review presents the structure and physico-chemical properties of ECMPs, elastic-contractile model proteins using sparse design modifications of elastic (GVGVP)(n); it describes the capacity of ECMP to perform the energy conversions that sustain living organisms; it arrives at the hydration thermodynamics of ECMP in terms of the change in Gibbs free energy of hydrophobic association, ΔG(HA), and the apolar-polar repulsive free energy of hydration, ΔG(ap); it applies ΔG(HA), ΔG(ap), and the nature of elasticity to describe the function of basic diverse proteins, namely - the F₁-motor of ATP synthase, Complex III of mitochondria, the KscA potassium-channel, and the molecular chaperonin, GroEL/ES; it applies ΔG(HA) and ΔG(ap) to describe the function of ABC exporter proteins that confer multi-drug resistance (MDR) on micro-organisms and human carcinomas and suggests drug modifications with which to overcome MDR. Using ECMP, means are demonstrated, for quantifying drug hydrophobicity with which to combat MDR and for preparing ECMP drug delivery nanoparticles, ECMPddnp, decorated with synthetic antigen-binding fragments, Fab1 and Fab2, with which to target specific up-regulated receptors, characteristic of human carcinoma cells, for binding and localized drug release.
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Fong BA, Wood DW. Expression and purification of ELP-intein-tagged target proteins in high cell density E. coli fermentation. Microb Cell Fact 2010; 9:77. [PMID: 20959011 PMCID: PMC2978133 DOI: 10.1186/1475-2859-9-77] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2010] [Accepted: 10/19/2010] [Indexed: 11/20/2022] Open
Abstract
Background Elastin-like polypeptides (ELPs) are useful tools that can be used to non-chromatographically purify proteins. When paired with self-cleaving inteins, they can be used as economical self-cleaving purification tags. However, ELPs and ELP-tagged target proteins have been traditionally expressed using highly enriched media in shake flask cultures, which are generally not amenable to scale-up. Results In this work, we describe the high cell-density expression of self-cleaving ELP-tagged targets in a supplemented minimal medium at a 2.5 liter fermentation scale, with increased yields and purity compared to traditional shake flask cultures. This demonstration of ELP expression in supplemented minimal media is juxtaposed to previous expression of ELP tags in extract-based rich media. We also describe several sets of fed-batch conditions and their impact on ELP expression and growth medium cost. Conclusions By using fed batch E. coli fermentation at high cell density, ELP-intein-tagged proteins can be expressed and purified at high yield with low cost. Further, the impact of media components and fermentation design can significantly impact the overall process cost, particularly at large scale. This work thus demonstrates an important advances in the scale up of self-cleaving ELP tag-mediated processes.
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Affiliation(s)
- Baley A Fong
- Department of Chemical Engineering, Princeton University, Princeton, New Jersey 08544, USA
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46
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Sengupta D, Heilshorn SC. Protein-Engineered Biomaterials: Highly Tunable Tissue Engineering Scaffolds. TISSUE ENGINEERING PART B-REVIEWS 2010; 16:285-93. [DOI: 10.1089/ten.teb.2009.0591] [Citation(s) in RCA: 125] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Debanti Sengupta
- Department of Chemistry, Stanford University, Stanford, California
| | - Sarah C. Heilshorn
- Department of Materials Science and Engineering, Stanford University, Stanford, California
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47
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Application of Recombinant Fusion Proteins for Tissue Engineering. Ann Biomed Eng 2010; 38:683-93. [DOI: 10.1007/s10439-010-9935-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2009] [Accepted: 01/17/2010] [Indexed: 10/19/2022]
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48
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MacEwan SR, Chilkoti A. Elastin-like polypeptides: Biomedical applications of tunable biopolymers. Biopolymers 2010; 94:60-77. [DOI: 10.1002/bip.21327] [Citation(s) in RCA: 313] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Abraham TN, Raj V, Prasad T, Kumar PRA, Sreenivasan K, Kumary TV. A novel thermoresponsive graft copolymer containing phosphorylated HEMA for generating detachable cell layers. J Appl Polym Sci 2010. [DOI: 10.1002/app.30538] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Nettles DL, Haider MA, Chilkoti A, Setton LA. Neural network analysis identifies scaffold properties necessary for in vitro chondrogenesis in elastin-like polypeptide biopolymer scaffolds. Tissue Eng Part A 2010; 16:11-20. [PMID: 19754250 PMCID: PMC2806067 DOI: 10.1089/ten.tea.2009.0134] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2009] [Accepted: 07/14/2009] [Indexed: 12/22/2022] Open
Abstract
The successful design of biomaterial scaffolds for articular cartilage tissue engineering requires an understanding of the impact of combinations of material formulation parameters on diverse and competing functional outcomes of biomaterial performance. This study sought to explore the use of a type of unsupervised artificial network, a self-organizing map, to identify relationships between scaffold formulation parameters (crosslink density, molecular weight, and concentration) and 11 such outcomes (including mechanical properties, matrix accumulation, metabolite usage and production, and histological appearance) for scaffolds formed from crosslinked elastin-like polypeptide (ELP) hydrogels. The artificial neural network recognized patterns in functional outcomes and provided a set of relationships between ELP formulation parameters and measured outcomes. Mapping resulted in the best mean separation amongst neurons for mechanical properties and pointed to crosslink density as the strongest predictor of most outcomes, followed by ELP concentration. The map also grouped formulations together that simultaneously resulted in the highest values for matrix production, greatest changes in metabolite consumption or production, and highest histological scores, indicating that the network was able to recognize patterns amongst diverse measurement outcomes. These results demonstrated the utility of artificial neural network tools for recognizing relationships in systems with competing parameters, toward the goal of optimizing and accelerating the design of biomaterial scaffolds for articular cartilage tissue engineering.
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Affiliation(s)
- Dana L. Nettles
- Department of Biomedical Engineering, Duke University, Durham, North Carolina
| | - Mansoor A. Haider
- Department of Mathematics, North Carolina State University, Raleigh, North Carolina
| | - Ashutosh Chilkoti
- Department of Biomedical Engineering, Duke University, Durham, North Carolina
| | - Lori A. Setton
- Department of Biomedical Engineering, Duke University, Durham, North Carolina
- Division of Orthopaedic Surgery, Department of Surgery, Duke University, Durham, North Carolina
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