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Zhang Z, Ji J, Hossain MS, Bailey B, Nangia S, Mozhdehi D. Lipidation alters the phase-separation of resilin-like polypeptides. SOFT MATTER 2024; 20:4007-4014. [PMID: 38690757 PMCID: PMC11095499 DOI: 10.1039/d4sm00358f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Accepted: 04/16/2024] [Indexed: 05/03/2024]
Abstract
Biology exploits biomacromolecular phase separation to form condensates, known as membraneless organelles. Despite significant advancements in deciphering sequence determinants for phase separation, modulating these features in vivo remains challenging. A promising approach inspired by biology is to use post-translational modifications (PTMs)-to modulate the amino acid physicochemistry instead of altering protein sequences-to control the formation and characteristics of condensates. However, despite the identification of more than 300 types of PTMs, the detailed understanding of how they influence the formation and material properties of protein condensates remains incomplete. In this study, we investigated how modification with myristoyl lipid alters the formation and characteristics of the resilin-like polypeptide (RLP) condensates, a prototypical disordered protein with upper critical solution temperature (UCST) phase behaviour. Using turbidimetry, dynamic light scattering, confocal and electron microscopy, we demonstrated that lipidation-in synergy with the sequence of the lipidation site-significantly influences RLPs' thermodynamic propensity for phase separation and their condensate properties. Molecular simulations suggested these effects result from an expanded hydrophobic region created by the interaction between the lipid and lipidation site rather than changes in peptide rigidity. These findings emphasize the role of "sequence context" in modifying the properties of PTMs, suggesting that variations in lipidation sequences could be strategically used to fine-tune the effect of these motifs. Our study advances understanding of lipidation's impact on UCST phase behaviour, relevant to proteins critical in biological processes and diseases, and opens avenues for designing lipidated resilins for biomedical applications like heat-mediated drug elution.
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Affiliation(s)
- Zhe Zhang
- Department of Chemistry, Syracuse University, Syracuse, New York 13244, USA.
| | - Jingjing Ji
- Department of Biomedical and Chemical Engineering, Syracuse University, Syracuse, New York 13244, USA.
| | | | - Briah Bailey
- Department of Biomedical Engineering, Augusta University, Augusta, Georgia 30912, USA
| | - Shikha Nangia
- Department of Biomedical and Chemical Engineering, Syracuse University, Syracuse, New York 13244, USA.
| | - Davoud Mozhdehi
- Department of Chemistry, Syracuse University, Syracuse, New York 13244, USA.
- BioInspired Syracuse: Institute for Material and Living Systems, Syracuse University, Syracuse, NY 13244, USA
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2
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Zhang Z, Lynch CJ, Huo Y, Chakraborty S, Cremer PS, Mozhdehi D. Modulating Phase Behavior in Fatty Acid-Modified Elastin-like Polypeptides (FAMEs): Insights into the Impact of Lipid Length on Thermodynamics and Kinetics of Phase Separation. J Am Chem Soc 2024; 146:5383-5392. [PMID: 38353994 PMCID: PMC10910508 DOI: 10.1021/jacs.3c12791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 01/22/2024] [Accepted: 01/29/2024] [Indexed: 02/29/2024]
Abstract
Although post-translational lipidation is prevalent in eukaryotes, its impact on the liquid-liquid phase separation of disordered proteins is still poorly understood. Here, we examined the thermodynamic phase boundaries and kinetics of aqueous two-phase system (ATPS) formation for a library of elastin-like polypeptides modified with saturated fatty acids of different chain lengths. By systematically altering the physicochemical properties of the attached lipids, we were able to correlate the molecular properties of lipids to changes in the thermodynamic phase boundaries and the kinetic stability of droplets formed by these proteins. We discovered that increasing the chain length lowers the phase separation temperature in a sigmoidal manner due to alterations in the unfavorable interactions between protein and water and changes in the entropy of phase separation. Our kinetic studies unveiled remarkable sensitivity to lipid length, which we propose is due to the temperature-dependent interactions between lipids and the protein. Strikingly, we found that the addition of just a single methylene group is sufficient to allow tuning of these interactions as a function of temperature, with proteins modified with C7-C9 lipids exhibiting non-Arrhenius dependence in their phase separation, a behavior that is absent for both shorter and longer fatty acids. This work advances our theoretical understanding of protein-lipid interactions and opens avenues for the rational design of lipidated proteins in biomedical paradigms, where precise control over the phase separation is pivotal.
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Affiliation(s)
- Zhe Zhang
- Department
of Chemistry, Syracuse University, Syracuse, New York 13244, United States
| | - Christopher J. Lynch
- Department
of Chemistry, Syracuse University, Syracuse, New York 13244, United States
| | - Ying Huo
- Department
of Chemistry, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Somya Chakraborty
- Fayetteville-Manlius
High School, Manlius, New York 13104, United States
| | - Paul S. Cremer
- Department
of Chemistry, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Davoud Mozhdehi
- Department
of Chemistry, Syracuse University, Syracuse, New York 13244, United States
- BioInspired
Syracuse: Institute for Material and Living Systems, Syracuse University, Syracuse, New York 13244, United States
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3
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Li B, Liu H, Zhou M, Wu A, Hao W, Jiang Y, Hu Z. Preparation of PEG/P(U-AM-ChCl) composite hydrogels using ternary DES light polymerization and their properties. RSC Adv 2024; 14:2993-2999. [PMID: 38239452 PMCID: PMC10794902 DOI: 10.1039/d3ra08235k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Accepted: 01/03/2024] [Indexed: 01/22/2024] Open
Abstract
Deep eutectic solvents (DES) were prepared using urea (U) and acrylamide (AM) as hydrogen bond donors (HBD) and choline chloride (ChCl) as hydrogen bond acceptor (HBA), and polyethylene glycol (PEG) was selected as a filler and uniformly dispersed in DES to prepare PEG/P(U-AM-ChCl) composite hydrogels by light polymerization. The composite hydrogels were characterized by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). The effects of the content of PEG on the swelling properties, mechanical properties and fatigue resistance of the composite hydrogels were investigated. The results showed that the compressive strength and fatigue strength of the composite hydrogels were gradually enhanced with the increase of the PEG content in the composite hydrogels, in which the maximum compressive strength of the hydrogels with 1 wt% PEG added was increased by 1.86 times. The composite hydrogel had excellent swelling properties, and the equilibrium swelling degree of the hydrogel with 1 wt% PEG added reached 10.15. Meanwhile, the PEG/P(U-AM-ChCl) composite hydrogel had excellent self-healing properties, and the self-healing rate of the composite hydrogel with a PFG content of 1 wt% could reach 91.93% after 48 hours of healing. This study provides a convenient and efficient method to prepare composite hydrogels with superior swelling properties and self-healing properties.
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Affiliation(s)
- Bin Li
- School of Mechanical Engineering, Wuhan Polytechnic University Wuhan Hubei 430023 China +18827081895
| | - Haiying Liu
- School of Mechanical Engineering, Wuhan Polytechnic University Wuhan Hubei 430023 China +18827081895
| | - Mengjing Zhou
- School of Mechanical Engineering, Wuhan Polytechnic University Wuhan Hubei 430023 China +18827081895
| | - Aolin Wu
- School of Science, Wuhan University of Technology Wuhan Hubei 430070 China
| | - Wenrui Hao
- School of Science, Wuhan University of Technology Wuhan Hubei 430070 China
| | - YaJun Jiang
- School of Mechanical Engineering, Wuhan Polytechnic University Wuhan Hubei 430023 China +18827081895
| | - Zhigang Hu
- School of Mechanical Engineering, Wuhan Polytechnic University Wuhan Hubei 430023 China +18827081895
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4
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Yu X, Wang X, He W. Leveraging Microgels Prepared from Poly(ethylene glycol) Bisepoxide and Polyetheramine for Versatile Surface Structuring of Agarose Hydrogels. ACS APPLIED BIO MATERIALS 2023; 6:4430-4438. [PMID: 37788183 DOI: 10.1021/acsabm.3c00660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
We demonstrate a macromer-type bisepoxide, poly(ethylene glycol) diglycidyl ether, polymerizing readily with a trifunctional polyetheramine Jeffamine T-403 in water to facilitate the development of a series of microgels abbreviated as PMG. Simply by varying the concentration of the as-prepared thermoresponsive intermediate prepolymer from 1 to 2 and 4%, hydrodynamic sizes of the resulting P1MG, P2MG, and P4MG are easily tuned in the submicrometer to micrometer range shown by the dynamic light scattering results. Besides size difference, these microgels also deform differently, where the drying-induced deformation effect is most severe for P1MG and least prominent for P4MG. Simple evaporative deposition of PMG into multilayer packing provides versatile and green options for microgel-mediated surface structuring of agarose hydrogels. Specifically, deformabile P1MG- and P2MG-derived coatings render agarose gel microwrinkle textures by buckling against swelling-induced surface instability. Conversely, stiffer P4MG microgels lead to a patchy patterned hierarchical coating on agarose, similar to the cracking effect in drying colloidal films. The straightforward microgel-on-macrogel strategy allows integration of both wrinkle and patchy patterns to generate Janus-type agarose gels, just by rationally arranging the coating sequence. Diversifying topographic features attainable through microgel-based coatings on hydrogels could potentially make the sustainable and biocompatible material of agarose a more compelling choice for bioapplications. Brief demonstrations of the broad applicability of P1MG toward wrinkling of proteinaceous and synthetic hydrogels further highlight promising prospects of the PMG microgel-on-macrogel functionalization strategy.
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Affiliation(s)
- Xueying Yu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024 Liaoning, China
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024 Liaoning, China
| | - Xinnan Wang
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024 Liaoning, China
| | - Wei He
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024 Liaoning, China
- School of Chemical Engineering, Dalian University of Technology, Dalian 116024 Liaoning, China
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5
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Bubli SY, Smolag M, Blackwell E, Lin YC, Tsavalas JG, Li L. Inducing an LCST in hydrophilic polysaccharides via engineered macromolecular hydrophobicity. Sci Rep 2023; 13:14896. [PMID: 37689784 PMCID: PMC10492858 DOI: 10.1038/s41598-023-41947-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 09/04/2023] [Indexed: 09/11/2023] Open
Abstract
Thermoresponsive polysaccharide-based materials with tunable transition temperatures regulating phase-separated microdomains offer substantial opportunities in tissue engineering and biomedical applications. To develop novel synthetic thermoresponsive polysaccharides, we employed versatile chemical routes to attach hydrophobic adducts to the backbone of hydrophilic dextran and gradually increased the hydrophobicity of the dextran chains to engineer phase separation. Conjugating methacrylate moieties to the dextran backbone yielded a continuous increase in macromolecular hydrophobicity that induced a reversible phase transition whose lower critical solution temperature can be modulated via variations in polysaccharide concentration, molecular weight, degree of methacrylation, ionic strength, surfactant, urea and Hofmeister salts. The phase separation is driven by increased hydrophobic interactions of methacrylate residues, where the addition of surfactant and urea disassociates hydrophobic interactions and eliminates phase transition. Morphological characterization of phase-separated dextran solutions via scanning electron and flow imaging microscopy revealed the formation of microdomains upon phase transition. These novel thermoresponsive dextrans exhibited promising cytocompatibility in cell culture where the phase transition exerted negligible effects on the attachment, spreading and proliferation of human dermal fibroblasts. Leveraging the conjugated methacrylate groups, we employed photo-initiated radical polymerization to generate phase-separated hydrogels with distinct microdomains. Our bottom-up approach to engineering macromolecular hydrophobicity of conventional hydrophilic, non-phase separating dextrans to induce robust phase transition and generate thermoresponsive phase-separated biomaterials will find applications in mechanobiology, tissue repair and regenerative medicine.
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Affiliation(s)
- Saniya Yesmin Bubli
- Department of Chemical Engineering and Bioengineering, University of New Hampshire, Durham, NH, 03824, USA
| | - Matthew Smolag
- Department of Chemical Engineering and Bioengineering, University of New Hampshire, Durham, NH, 03824, USA
| | - Ellen Blackwell
- Department of Chemical Engineering and Bioengineering, University of New Hampshire, Durham, NH, 03824, USA
| | - Yung-Chun Lin
- Department of Chemistry, University of New Hampshire, Durham, NH, 03824, USA
| | - John G Tsavalas
- Department of Chemistry, University of New Hampshire, Durham, NH, 03824, USA
- Materials Science Program, University of New Hampshire, Durham, NH, 03824, USA
| | - Linqing Li
- Department of Chemical Engineering and Bioengineering, University of New Hampshire, Durham, NH, 03824, USA.
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6
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Patkar SS, Garcia Garcia C, Palmese LL, Kiick KL. Sequence-Encoded Differences in Phase Separation Enable Formation of Resilin-like Polypeptide-Based Microstructured Hydrogels. Biomacromolecules 2023; 24:3729-3741. [PMID: 37525441 DOI: 10.1021/acs.biomac.3c00418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
Microstructured hydrogels are promising platforms to mimic structural and compositional heterogeneities of the native extracellular matrix (ECM). The current state-of-the-art soft matter patterning techniques for generating ECM mimics can be limited owing to their reliance on specialized equipment and multiple time- and energy-intensive steps. Here, a photocross-linking methodology that traps various morphologies of phase-separated multicomponent formulations of compositionally distinct resilin-like polypeptides (RLPs) is reported. Turbidimetry and quantitative 1H NMR spectroscopy were utilized to investigate the sequence-dependent liquid-liquid phase separation of multicomponent solutions of RLPs. Differences between the intermolecular interactions of two different photocross-linkable RLPs and a phase-separating templating RLP were exploited for producing microstructured hydrogels with tunable control over pore diameters (ranging from 1.5 to 150 μm) and shear storage moduli (ranging from 0.2 to 5 kPa). The culture of human mesenchymal stem cells demonstrated high viability and attachment on microstructured hydrogels, suggesting their potential for developing customizable platforms for regenerative medicine applications.
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Affiliation(s)
- Sai S Patkar
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Cristobal Garcia Garcia
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Luisa L Palmese
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, United States
| | - Kristi L Kiick
- Department of Materials Science and Engineering, University of Delaware, Newark, Delaware 19716, United States
- Department of Biomedical Engineering, University of Delaware, Newark, Delaware 19713, United States
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7
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Hutin S, Kumita JR, Strotmann VI, Dolata A, Ling WL, Louafi N, Popov A, Milhiet PE, Blackledge M, Nanao MH, Wigge PA, Stahl Y, Costa L, Tully MD, Zubieta C. Phase separation and molecular ordering of the prion-like domain of the Arabidopsis thermosensory protein EARLY FLOWERING 3. Proc Natl Acad Sci U S A 2023; 120:e2304714120. [PMID: 37399408 PMCID: PMC10334799 DOI: 10.1073/pnas.2304714120] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 06/06/2023] [Indexed: 07/05/2023] Open
Abstract
Liquid-liquid phase separation (LLPS) is an important mechanism enabling the dynamic compartmentalization of macromolecules, including complex polymers such as proteins and nucleic acids, and occurs as a function of the physicochemical environment. In the model plant, Arabidopsis thaliana, LLPS by the protein EARLY FLOWERING3 (ELF3) occurs in a temperature-sensitive manner and controls thermoresponsive growth. ELF3 contains a largely unstructured prion-like domain (PrLD) that acts as a driver of LLPS in vivo and in vitro. The PrLD contains a poly-glutamine (polyQ) tract, whose length varies across natural Arabidopsis accessions. Here, we use a combination of biochemical, biophysical, and structural techniques to investigate the dilute and condensed phases of the ELF3 PrLD with varying polyQ lengths. We demonstrate that the dilute phase of the ELF3 PrLD forms a monodisperse higher-order oligomer that does not depend on the presence of the polyQ sequence. This species undergoes LLPS in a pH- and temperature-sensitive manner and the polyQ region of the protein tunes the initial stages of phase separation. The liquid phase rapidly undergoes aging and forms a hydrogel as shown by fluorescence and atomic force microscopies. Furthermore, we demonstrate that the hydrogel assumes a semiordered structure as determined by small-angle X-ray scattering, electron microscopy, and X-ray diffraction. These experiments demonstrate a rich structural landscape for a PrLD protein and provide a framework to describe the structural and biophysical properties of biomolecular condensates.
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Affiliation(s)
- Stephanie Hutin
- Laboratoire de Physiologie Cellulaire et Végétale, University Grenoble Alpes, Centre national de la recherche scientifique, Commissariat à l'énergie atomique et aux énergies alternatives, Institut national de recherche pour l’agriculture, l’alimentation et l’environnement, Institut de recherche interdisciplinaire de Grenoble, Grenoble38054, France
| | - Janet R. Kumita
- Department of Pharmacology, University of Cambridge, CambridgeCB2 1PD, United Kingdom
| | - Vivien I. Strotmann
- Institute for Developmental Genetics, Heinrich-Heine University, DüsseldorfD-40225, Germany
| | - Anika Dolata
- Institute for Developmental Genetics, Heinrich-Heine University, DüsseldorfD-40225, Germany
| | - Wai Li Ling
- University Grenoble Alpes, Commissariat à l'énergie atomique et aux énergies alternatives, Centre national de la recherche scientifique, Institut de Biologie Structurale, Institut de recherche interdisciplinaire de Grenoble, Grenoble38000, France
| | - Nessim Louafi
- Centre de Biologie Structurale, University Montpellier, Centre national de la recherche scientifique, Institut national de la santé et de la recherche médicale, Montpellier34090, France
| | - Anton Popov
- European Synchrotron Radiation Facility, Structural Biology Group, Grenoble38000, France
| | - Pierre-Emmanuel Milhiet
- Centre de Biologie Structurale, University Montpellier, Centre national de la recherche scientifique, Institut national de la santé et de la recherche médicale, Montpellier34090, France
| | - Martin Blackledge
- University Grenoble Alpes, Commissariat à l'énergie atomique et aux énergies alternatives, Centre national de la recherche scientifique, Institut de Biologie Structurale, Institut de recherche interdisciplinaire de Grenoble, Grenoble38000, France
| | - Max H. Nanao
- European Synchrotron Radiation Facility, Structural Biology Group, Grenoble38000, France
| | - Philip A. Wigge
- Leibniz-Institut für Gemüse- und Zierpflanzenbau, 14979Grossbeeren, Germany
- Institute of Biochemistry and Biology, University of Potsdam, 14476Potsdam, Germany
| | - Yvonne Stahl
- Institute for Developmental Genetics, Heinrich-Heine University, DüsseldorfD-40225, Germany
- Cluster of Excellence on Plant Sciences, Heinrich-Heine University, DüsseldorfD-40225, Germany
| | - Luca Costa
- Centre de Biologie Structurale, University Montpellier, Centre national de la recherche scientifique, Institut national de la santé et de la recherche médicale, Montpellier34090, France
| | - Mark D. Tully
- European Synchrotron Radiation Facility, Structural Biology Group, Grenoble38000, France
| | - Chloe Zubieta
- Laboratoire de Physiologie Cellulaire et Végétale, University Grenoble Alpes, Centre national de la recherche scientifique, Commissariat à l'énergie atomique et aux énergies alternatives, Institut national de recherche pour l’agriculture, l’alimentation et l’environnement, Institut de recherche interdisciplinaire de Grenoble, Grenoble38054, France
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8
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Yu X, Wang L, He W. Cytophilic Agarose-Epoxide-Amine Cryogels Engineered with Granulated Microstructures. ACS APPLIED BIO MATERIALS 2023; 6:694-702. [PMID: 36695539 DOI: 10.1021/acsabm.2c00938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Inherent cytophobicity of agarose limits its direct use for the growth of anchorage-dependent cells. Here, we report a simple strategy allowing the development of agarose-based hydrogels entailed with both cytophilicity and microstructured morphology. Through the reaction of water-soluble 1,4-butanediol diglycidyl ether (BDDE) with trifunctional polyetheramine Jeffamine T403 in agarose solution followed by cryogelation of the mixtures, a series of macroporous agarose-epoxide-amine cryogels were prepared readily. Results from fluorescent labeling and energy-dispersive X-ray elemental mapping showed the formation of granulated microstructures in the cryogels. Such features closely correlated to the phase separation of BDDE-T403 polymers within the agarose matrix. Cytophilicity of the microstructured cryogels due to the integrated amine moieties was demonstrated through the adhesion of fibroblasts. Functional enrichment of the cryogels was further highlighted by leveraging the granulates as micro-reservoirs for polyphenol proanthocyanidin to enable antioxidation and protection of fibroblasts from H2O2-induced cytotoxic effect in vitro.
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Affiliation(s)
- Xueying Yu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, Liaoning116024, China.,School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning116024, China
| | - Liwei Wang
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, Liaoning116024, China.,School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning116024, China
| | - Wei He
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, Liaoning116024, China.,School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning116024, China
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9
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Leveraging polyetheramine-bisepoxide reaction in water and LCST-mediated phase separation toward microstructured poly(amino alcohol ethers) hydrogels. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Nadine S, Chung A, Diltemiz SE, Yasuda B, Lee C, Hosseini V, Karamikamkar S, de Barros NR, Mandal K, Advani S, Zamanian BB, Mecwan M, Zhu Y, Mofidfar M, Zare MR, Mano J, Dokmeci MR, Alambeigi F, Ahadian S. Advances in microfabrication technologies in tissue engineering and regenerative medicine. Artif Organs 2022; 46:E211-E243. [PMID: 35349178 DOI: 10.1111/aor.14232] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 02/02/2022] [Accepted: 02/28/2022] [Indexed: 12/17/2022]
Abstract
BACKGROUND Tissue engineering provides various strategies to fabricate an appropriate microenvironment to support the repair and regeneration of lost or damaged tissues. In this matter, several technologies have been implemented to construct close-to-native three-dimensional structures at numerous physiological scales, which are essential to confer the functional characteristics of living tissues. METHODS In this article, we review a variety of microfabrication technologies that are currently utilized for several tissue engineering applications, such as soft lithography, microneedles, templated and self-assembly of microstructures, microfluidics, fiber spinning, and bioprinting. RESULTS These technologies have considerably helped us to precisely manipulate cells or cellular constructs for the fabrication of biomimetic tissues and organs. Although currently available tissues still lack some crucial functionalities, including vascular networks, innervation, and lymphatic system, microfabrication strategies are being proposed to overcome these issues. Moreover, the microfabrication techniques that have progressed to the preclinical stage are also discussed. CONCLUSIONS This article aims to highlight the advantages and drawbacks of each technique and areas of further research for a more comprehensive and evolving understanding of microfabrication techniques in terms of tissue engineering and regenerative medicine applications.
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Affiliation(s)
- Sara Nadine
- Terasaki Institute for Biomedical Innovation (TIBI), Los Angeles, California, USA.,CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Ada Chung
- Department of Psychology, University of California-Los Angeles, Los Angeles, California, USA
| | | | - Brooke Yasuda
- Terasaki Institute for Biomedical Innovation (TIBI), Los Angeles, California, USA.,Department of Psychology, University of California-Los Angeles, Los Angeles, California, USA
| | - Charles Lee
- Terasaki Institute for Biomedical Innovation (TIBI), Los Angeles, California, USA.,Department of Veterinary Pathobiology, Texas A&M University, College Station, Texas, USA.,Station 1, Lawrence, Massachusetts, USA
| | - Vahid Hosseini
- Terasaki Institute for Biomedical Innovation (TIBI), Los Angeles, California, USA
| | - Solmaz Karamikamkar
- Terasaki Institute for Biomedical Innovation (TIBI), Los Angeles, California, USA
| | | | - Kalpana Mandal
- Terasaki Institute for Biomedical Innovation (TIBI), Los Angeles, California, USA
| | - Shailesh Advani
- Terasaki Institute for Biomedical Innovation (TIBI), Los Angeles, California, USA
| | | | - Marvin Mecwan
- Terasaki Institute for Biomedical Innovation (TIBI), Los Angeles, California, USA
| | - Yangzhi Zhu
- Terasaki Institute for Biomedical Innovation (TIBI), Los Angeles, California, USA
| | - Mohammad Mofidfar
- Department of Chemistry, Stanford University, Palo Alto, California, USA
| | | | - João Mano
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Mehmet Remzi Dokmeci
- Terasaki Institute for Biomedical Innovation (TIBI), Los Angeles, California, USA
| | - Farshid Alambeigi
- Walker Department of Mechanical Engineering, University of Texas at Austin, Austin, Texas, USA
| | - Samad Ahadian
- Terasaki Institute for Biomedical Innovation (TIBI), Los Angeles, California, USA
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11
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Chen X, Wu J, Cao X, Jiang H, Wu Z, Zeng Z, Chen H, Zhang J. The role of gel wound dressings loaded with stem cells in the treatment of diabetic foot ulcers. Am J Transl Res 2021; 13:13261-13272. [PMID: 35035674 PMCID: PMC8748097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 11/03/2021] [Indexed: 06/14/2023]
Abstract
Diabetic foot ulcers (DFUs) are a serious complication of diabetes and the main cause of nontraumatic lower limb amputations, resulting in a serious economic burden on society. The main causes of DFUs include peripheral neuropathy, foot deformity, chronic inflammation, and peripheral artery disease. There are many clinical approaches for the treatment of DFUs, but they are all aimed at addressing a single aetiological factor. Stem cells (SCs), which express many cytokines and a variety of nerve growth factors and modulate immunological function in the wound, may accelerate DFU healing by promoting angiogenesis, cell proliferation, and nerve growth and regulating the inflammatory response. However, the survival time of SCs without scaffold support in the wound is short. Multifunctional gel wound dressings play a critical role in skin wound healing due to their ability to maintain SC survival for a long time, provide moisture and prevent electrolyte and water loss in DFUs. Among the many methods for clinical treatment of DFUs, the most successful one is therapy with gel dressings loaded with SCs. To accelerate DFU healing, gel wound dressings loaded with SCs are needed to promote the survival and migration of SCs and increase wound contraction. This review summarizes the research advancements regarding multifunctional gel wound dressings and SCs in the treatment of DFU to demonstrate the effectiveness and safety of this combinational therapeutic strategy.
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Affiliation(s)
- Xionglin Chen
- Department of Histology & Embryology and Medical Genetics, School of Medicine, Jiujiang UniversityJiujiang 332000, Jiangxi, China
| | - Jianfang Wu
- Department of Pathogenic Biology and Immunology, School of Medicine, Jiujiang UniversityJiujiang 332000, Jiangxi, China
| | - Xiaoming Cao
- Department of Anatomy, School of Medicine, Jiujiang UniversityJiujiang 332000, Jiangxi, China
| | - He Jiang
- Department of Histology & Embryology and Medical Genetics, School of Medicine, Jiujiang UniversityJiujiang 332000, Jiangxi, China
| | - Zhiren Wu
- Department of Preventive Medicine, Grade 2019, School of Medicine, Jiujiang UniversityJiujiang 332000, Jiangxi, China
| | - Zidu Zeng
- Department of Preventive Medicine, Grade 2019, School of Medicine, Jiujiang UniversityJiujiang 332000, Jiangxi, China
| | - Hui Chen
- Department of Anatomy, School of Medicine, Jiujiang UniversityJiujiang 332000, Jiangxi, China
| | - Jie Zhang
- Department of Histology & Embryology and Medical Genetics, School of Medicine, Jiujiang UniversityJiujiang 332000, Jiangxi, China
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12
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Bongiovanni Abel S, Martinez MV, Bruno MM, Barbero CA, Abraham GA, Acevedo DF. A modular platform based on electrospun carbon nanofibers and poly(
N
‐isopropylacrylamide) hydrogel for sensor applications. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5473] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Silvestre Bongiovanni Abel
- Research Institute of Materials Science and Technology (INTEMA) National University of Mar del Plata (UNMdP)‐National Council of Scientific and Technical Research (CONICET) Mar del Plata Argentina
| | - María V. Martinez
- Research Institute for Energy Technologies and Advanced Materials (IITEMA) National University of Río Cuarto (UNRC)‐National Council of Scientific and Technical Research (CONICET) Río Cuarto Argentina
| | - Mariano M. Bruno
- Research Institute for Energy Technologies and Advanced Materials (IITEMA) National University of Río Cuarto (UNRC)‐National Council of Scientific and Technical Research (CONICET) Río Cuarto Argentina
| | - Cesar A. Barbero
- Research Institute for Energy Technologies and Advanced Materials (IITEMA) National University of Río Cuarto (UNRC)‐National Council of Scientific and Technical Research (CONICET) Río Cuarto Argentina
| | - Gustavo A. Abraham
- Research Institute of Materials Science and Technology (INTEMA) National University of Mar del Plata (UNMdP)‐National Council of Scientific and Technical Research (CONICET) Mar del Plata Argentina
| | - Diego F. Acevedo
- Research Institute for Energy Technologies and Advanced Materials (IITEMA) National University of Río Cuarto (UNRC)‐National Council of Scientific and Technical Research (CONICET) Río Cuarto Argentina
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13
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Constantinou AP, Tall A, Li Q, Georgiou TK. Liquid–liquid phase separation in aqueous solutions of poly(ethylene glycol) methacrylate homopolymers. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210714] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Anna P. Constantinou
- Department of Materials Imperial College London, South Kensington Campus, Royal School of Mines London UK
| | - Amy Tall
- Department of Materials Imperial College London, South Kensington Campus, Royal School of Mines London UK
| | - Qian Li
- Department of Materials Imperial College London, South Kensington Campus, Royal School of Mines London UK
| | - Theoni K. Georgiou
- Department of Materials Imperial College London, South Kensington Campus, Royal School of Mines London UK
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14
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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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15
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Magnani JS, Montazami R, Hashemi NN. Recent Advances in Microfluidically Spun Microfibers for Tissue Engineering and Drug Delivery Applications. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2021; 14:185-205. [PMID: 33940929 DOI: 10.1146/annurev-anchem-090420-101138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In recent years, the unique and tunable properties of microfluidically spun microfibers have led to tremendous advancements for the field of biomedical engineering, which have been applied to areas such as tissue engineering, wound dressing, and drug delivery, as well as cell encapsulation and cell seeding. In this article, we analyze the most recent advances in microfluidics and microfluidically spun microfibers, with an emphasis on biomedical applications. We explore in detail these new and innovative experiments, how microfibers are made, the experimental purpose of making microfibers, and the future work that can be done as a result of these new types of microfibers. We also focus on the applications of various materials used to fabricate microfibers, as well as their many promises and limitations.
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Affiliation(s)
- Joseph Scott Magnani
- Department of Mechanical Engineering, Iowa State University, Ames, Iowa 50011, USA;
| | - Reza Montazami
- Department of Mechanical Engineering, Iowa State University, Ames, Iowa 50011, USA;
| | - Nicole N Hashemi
- Department of Mechanical Engineering, Iowa State University, Ames, Iowa 50011, USA;
- Department of Biomedical Sciences, Iowa State University, Ames, Iowa 50011, USA
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16
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Shahidi S, Janmaleki M, Riaz S, Sanati Nezhad A, Syed N. A tuned gelatin methacryloyl (GelMA) hydrogel facilitates myelination of dorsal root ganglia neurons in vitro. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 126:112131. [PMID: 34082948 DOI: 10.1016/j.msec.2021.112131] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 04/18/2021] [Accepted: 04/19/2021] [Indexed: 12/12/2022]
Abstract
Investigating axonal myelination by Schwann cells (SCs) is crucial for understanding mechanisms underlying demyelination and remyelination, which may help gain insights into incurable disorders like neurodegenerative diseases. In this study, a gelatin-based hydrogel, gelatin methacryloyl (GelMA), was optimized to achieve the biocompatibility, porosity, mechanical stability, and degradability needed to provide high cell viability for dorsal root ganglia (DRG) neurons and SCs, and to enable their long-term coculture needed for myelination studies. The results of cell viability, neurite elongation, SC function and maturation, SC-axon interaction, and myelination were compared with two other commonly used substrates, namely collagen and Poly-d Lysine (PDL). The tuned GelMA constructs (Young's modulus of 32.6 ± 1.9 kPa and the median value of pore size of 10.3 μm) enhanced single axon generation (unlike collagen) and promoted the interaction of DRG neurons and SCs (unlike PDL). While DRG cells exhibited relatively higher viability on PDL after 48 h, i.e., 83.8%, the cells had similar survival rate on GelMA and collagen substrates, 66.7% and 61.5%, respectively. Further adjusting the hydrogel properties to achieve two distinct ranges of relatively small and large pores supported SCs to extend their processes freely and enabled physical contact with and wrapping around their corresponding axons. Staining the cells with myelin basic protein (MBA) and myelin-associated glycoprotein (MAG) revealed enhanced myelination on GelMA hydrogel compared to PDL and collagen. Moreover, the engineered porosity enhanced DRGs and SCs attachments and flexibility of movement across the substrate. This engineered hydrogel structure can now be further explored to model demyelination in neurodegenerative diseases, as well as to study the effects of various compounds on myelin regeneration.
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Affiliation(s)
- Sahar Shahidi
- Hotchkiss Brain Institute and Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta T2N 1N4, Canada
| | - Mohsen Janmaleki
- BioMEMS and Bioinspired Microfluidic Laboratory, Biomedical Engineering Graduate Program, University of Calgary, Calgary, T2N 1N4, Alberta, Canada; Center for BioEngineering Research and Education, University of Calgary, Calgary, T2N 1N4, Alberta, Canada
| | - Saba Riaz
- Hotchkiss Brain Institute and Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta T2N 1N4, Canada
| | - Amir Sanati Nezhad
- BioMEMS and Bioinspired Microfluidic Laboratory, Biomedical Engineering Graduate Program, University of Calgary, Calgary, T2N 1N4, Alberta, Canada; Center for BioEngineering Research and Education, University of Calgary, Calgary, T2N 1N4, Alberta, Canada.
| | - Naweed Syed
- Hotchkiss Brain Institute and Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta T2N 1N4, Canada.
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17
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Burgos-Morales O, Gueye M, Lacombe L, Nowak C, Schmachtenberg R, Hörner M, Jerez-Longres C, Mohsenin H, Wagner H, Weber W. Synthetic biology as driver for the biologization of materials sciences. Mater Today Bio 2021; 11:100115. [PMID: 34195591 PMCID: PMC8237365 DOI: 10.1016/j.mtbio.2021.100115] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 05/16/2021] [Accepted: 05/18/2021] [Indexed: 01/16/2023] Open
Abstract
Materials in nature have fascinating properties that serve as a continuous source of inspiration for materials scientists. Accordingly, bio-mimetic and bio-inspired approaches have yielded remarkable structural and functional materials for a plethora of applications. Despite these advances, many properties of natural materials remain challenging or yet impossible to incorporate into synthetic materials. Natural materials are produced by living cells, which sense and process environmental cues and conditions by means of signaling and genetic programs, thereby controlling the biosynthesis, remodeling, functionalization, or degradation of the natural material. In this context, synthetic biology offers unique opportunities in materials sciences by providing direct access to the rational engineering of how a cell senses and processes environmental information and translates them into the properties and functions of materials. Here, we identify and review two main directions by which synthetic biology can be harnessed to provide new impulses for the biologization of the materials sciences: first, the engineering of cells to produce precursors for the subsequent synthesis of materials. This includes materials that are otherwise produced from petrochemical resources, but also materials where the bio-produced substances contribute unique properties and functions not existing in traditional materials. Second, engineered living materials that are formed or assembled by cells or in which cells contribute specific functions while remaining an integral part of the living composite material. We finally provide a perspective of future scientific directions of this promising area of research and discuss science policy that would be required to support research and development in this field.
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Affiliation(s)
- O. Burgos-Morales
- École Supérieure de Biotechnologie de Strasbourg - ESBS, University of Strasbourg, Illkirch, 67412, France
- Faculty of Biology, University of Freiburg, Freiburg, 79104, Germany
| | - M. Gueye
- École Supérieure de Biotechnologie de Strasbourg - ESBS, University of Strasbourg, Illkirch, 67412, France
| | - L. Lacombe
- École Supérieure de Biotechnologie de Strasbourg - ESBS, University of Strasbourg, Illkirch, 67412, France
| | - C. Nowak
- École Supérieure de Biotechnologie de Strasbourg - ESBS, University of Strasbourg, Illkirch, 67412, France
- Faculty of Biology, University of Freiburg, Freiburg, 79104, Germany
| | - R. Schmachtenberg
- École Supérieure de Biotechnologie de Strasbourg - ESBS, University of Strasbourg, Illkirch, 67412, France
- Faculty of Biology, University of Freiburg, Freiburg, 79104, Germany
| | - M. Hörner
- Faculty of Biology, University of Freiburg, Freiburg, 79104, Germany
- Signalling Research Centres BIOSS and CIBSS, University of Freiburg, Freiburg, 79104, Germany
| | - C. Jerez-Longres
- Faculty of Biology, University of Freiburg, Freiburg, 79104, Germany
- Signalling Research Centres BIOSS and CIBSS, University of Freiburg, Freiburg, 79104, Germany
- Spemann Graduate School of Biology and Medicine - SGBM, University of Freiburg, Freiburg, 79104, Germany
| | - H. Mohsenin
- Faculty of Biology, University of Freiburg, Freiburg, 79104, Germany
- Signalling Research Centres BIOSS and CIBSS, University of Freiburg, Freiburg, 79104, Germany
| | - H.J. Wagner
- Faculty of Biology, University of Freiburg, Freiburg, 79104, Germany
- Signalling Research Centres BIOSS and CIBSS, University of Freiburg, Freiburg, 79104, Germany
- Department of Biosystems Science and Engineering - D-BSSE, ETH Zurich, Basel, 4058, Switzerland
| | - W. Weber
- Faculty of Biology, University of Freiburg, Freiburg, 79104, Germany
- Signalling Research Centres BIOSS and CIBSS, University of Freiburg, Freiburg, 79104, Germany
- Spemann Graduate School of Biology and Medicine - SGBM, University of Freiburg, Freiburg, 79104, Germany
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18
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Abstract
Hydrogels are polymeric networks highly swollen with water. Because of their versatility and properties mimicking biological tissues, they are very interesting for biomedical applications. In this aim, the control of porosity is of crucial importance since it governs the transport properties and influences the fate of cells cultured onto or into the hydrogels. Among the techniques allowing for the elaboration of hydrogels, photopolymerization or photo-cross-linking are probably the most powerful and versatile synthetic routes. This Review aims at giving an overview of the literature dealing with photopolymerized hydrogels for which the generation or characterization of porosity is studied. First, the materials (polymers and photoinitiating systems) used for synthesizing hydrogels are presented. The different ways for generating porosity in the photopolymerized hydrogels are explained, and the characterization techniques allowing adequate study of the porosity are presented. Finally, some applications in the field of controlled release and tissue engineering are reviewed.
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Affiliation(s)
- Erwan Nicol
- Institut des Molécules et Matériaux du Mans (IMMM), UMR 6283 CNRS Le Mans Université, Avenue Olivier Messiaen, 72085 Cedex 9 Le Mans, France
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19
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Cai MH, Chen XY, Fu LQ, Du WL, Yang X, Mou XZ, Hu PY. Design and Development of Hybrid Hydrogels for Biomedical Applications: Recent Trends in Anticancer Drug Delivery and Tissue Engineering. Front Bioeng Biotechnol 2021; 9:630943. [PMID: 33681168 PMCID: PMC7925894 DOI: 10.3389/fbioe.2021.630943] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 01/11/2021] [Indexed: 12/18/2022] Open
Abstract
The applications of hydrogels in biomedical field has been since multiple decades. Discoveries in biology and chemistry render this platform endowed with much engineering potentials and growing continuously. Novel approaches in constructing these materials have led to the production of complex hybrid hydrogels systems that can incorporate both natural and synthetic polymers and other functional moieties for mediated cell response, tunable release kinetic profiles, thus they are used and research for diverse biomedical applications. Recent advancement in this field has established promising techniques for the development of biorelevant materials for construction of hybrid hydrogels with potential applications in the delivery of cancer therapeutics, drug discovery, and re-generative medicines. In this review, recent trends in advanced hybrid hydrogels systems incorporating nano/microstructures, their synthesis, and their potential applications in tissue engineering and anticancer drug delivery has been discussed. Examples of some new approaches including click reactions implementation, 3D printing, and photopatterning for the development of these materials has been briefly discussed. In addition, the application of biomolecules and motifs for desired outcomes, and tailoring of their transport and kinetic behavior for achieving desired outcomes in hybrid nanogels has also been reviewed.
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Affiliation(s)
- Mao-Hua Cai
- Department of General Surgery, Chun'an First People's Hospital (Zhejiang Provincial People's Hospital Chun'an Branch), Hangzhou, China
| | - Xiao-Yi Chen
- Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, People's Hospital of Hangzhou Medical College, Zhejiang Provincial People's Hospital, Hangzhou, China.,Clinical Research Institute, Zhejiang Provincial People's Hospital of Hangzhou Medical College, People's Hospital, Hangzhou, China
| | - Luo-Qin Fu
- Department of General Surgery, Chun'an First People's Hospital (Zhejiang Provincial People's Hospital Chun'an Branch), Hangzhou, China
| | - Wen-Lin Du
- Clinical Research Institute, Zhejiang Provincial People's Hospital of Hangzhou Medical College, People's Hospital, Hangzhou, China
| | - Xue Yang
- Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, People's Hospital of Hangzhou Medical College, Zhejiang Provincial People's Hospital, Hangzhou, China.,Clinical Research Institute, Zhejiang Provincial People's Hospital of Hangzhou Medical College, People's Hospital, Hangzhou, China
| | - Xiao-Zhou Mou
- Key Laboratory of Tumor Molecular Diagnosis and Individualized Medicine of Zhejiang Province, People's Hospital of Hangzhou Medical College, Zhejiang Provincial People's Hospital, Hangzhou, China.,Clinical Research Institute, Zhejiang Provincial People's Hospital of Hangzhou Medical College, People's Hospital, Hangzhou, China
| | - Pei-Yang Hu
- Department of Traumatology, Tiantai People's Hospital of Zhejiang Province (Tiantai Branch of Zhejiang People's Hospital), Taizhou, China
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20
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Cao Y, Mezzenga R. Design principles of food gels. ACTA ACUST UNITED AC 2020; 1:106-118. [PMID: 37127997 DOI: 10.1038/s43016-019-0009-x] [Citation(s) in RCA: 199] [Impact Index Per Article: 49.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Accepted: 11/13/2019] [Indexed: 12/19/2022]
Abstract
Naturally sourced gels from food biopolymers have advanced in recent decades to compare favourably in performance and breadth of application to their synthetic counterparts. Here, we comprehensively review the constitutive nature, gelling mechanisms, design approaches, and structural and mechanical properties of food gels. We then consider how these food gel design principles alter rheological and tribological properties for food quality improvement, nutrient-modification of foods while preserving sensory perception, and targeted delivery of drugs and bioactives within the gastrointestinal tract. We propose that food gels may offer advantages over their synthetic counterparts owing to their source renewability, low cost, biocompatibility and biodegradability. We also identify emerging approaches and trends that may improve and expand the current scope, properties and functionalities of food gels and inspire new applications.
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21
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Meere M, Pontrelli G, McGinty S. Modelling phase separation in amorphous solid dispersions. Acta Biomater 2019; 94:410-424. [PMID: 31238110 DOI: 10.1016/j.actbio.2019.06.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 05/10/2019] [Accepted: 06/07/2019] [Indexed: 12/29/2022]
Abstract
Much work has been devoted to analysing thermodynamic models for solid dispersions with a view to identifying regions in the phase diagram where amorphous phase separation or drug recrystallization can occur. However, detailed partial differential equation non-equilibrium models that track the evolution of solid dispersions in time and space are lacking. Hence theoretical predictions for the timescale over which phase separation occurs in a solid dispersion are not available. In this paper, we address some of these deficiencies by (i) constructing a general multicomponent diffusion model for a dissolving solid dispersion; (ii) specializing the model to a binary drug/polymer system in storage; (iii) deriving an effective concentration dependent drug diffusion coefficient for the binary system, thereby obtaining a theoretical prediction for the timescale over which phase separation occurs; (iv) calculating the phase diagram for the Felodipine/HPMCAS system; and (iv) presenting a detailed numerical investigation of the Felodipine/HPMCAS system assuming a Flory-Huggins activity coefficient. The numerical simulations exhibit numerous interesting phenomena, such as the formation of polymer droplets and strings, Ostwald ripening/coarsening, phase inversion, and droplet-to-string transitions. A numerical simulation of the fabrication process for a solid dispersion in a hot melt extruder was also presented. STATEMENT OF SIGNIFICANCE: Solid dispersions are products that contain mixtures of drug and other materials e.g. polymer. These are liable to separate-out over time - a phenomenon known as phase separation. This means that it is possible the product differs both compositionally and structurally between the time of manufacture and the time it is taken by the patient, leading to poor bioavailability and so ultimately the shelf-life of the product has to be reduced. Theoretical predictions for the timescale over which phase separation occurs are not currently available. Also lacking are detailed partial differential equation non-equilibrium models that track the evolution of solid dispersions in time and space. This study addresses these issues, before presenting a detailed investigation of a particular drug-polymer system.
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Affiliation(s)
- Martin Meere
- School of Mathematics, NUI Galway, University Road, Galway, Ireland.
| | | | - Sean McGinty
- Division of Biomedical Engineering, University of Glasgow, Glasgow G12 8QQ, UK
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22
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Mesenchymal Stem Cells in Homeostasis and Systemic Diseases: Hypothesis, Evidences, and Therapeutic Opportunities. Int J Mol Sci 2019; 20:ijms20153738. [PMID: 31370159 PMCID: PMC6696100 DOI: 10.3390/ijms20153738] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 07/29/2019] [Indexed: 12/21/2022] Open
Abstract
Mesenchymal stem cells (MSCs) are present in all organs and tissues, playing a well-known function in tissue regeneration. However, there is also evidence indicating a broader role of MSCs in tissue homeostasis. In vivo studies have shown MSC paracrine mechanisms displaying proliferative, immunoregulatory, anti-oxidative, or angiogenic activity. In addition, recent studies also demonstrate that depletion and/or dysfunction of MSCs are associated with several systemic diseases, such as lupus, diabetes, psoriasis, and rheumatoid arthritis, as well as with aging and frailty syndrome. In this review, we hypothesize about the role of MSCs as keepers of tissue homeostasis as well as modulators in a variety of inflammatory and degenerative systemic diseases. This scenario opens the possibility for the use of secretome-derived products from MSCs as new therapeutic agents in order to restore tissue homeostasis, instead of the classical paradigm "one disease, one drug".
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23
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Abstract
The use of hydrogels in biomedical applications dates back multiple decades, and the engineering potential of these materials continues to grow with discoveries in chemistry and biology. The approaches have led to increasing complex hydrogels that incorporate both synthetic and natural polymers and functional domains for tunable release kinetics, mediated cell response, and ultimately use in clinical and research applications in biomedical practice. This review focuses on recent advances in hybrid hydrogels that incorporate nano/microstructures, their synthesis, and applications in biomedical research. Examples discussed include the implementation of click reactions, photopatterning, and 3D printing for the facile production of these hybrid hydrogels, the use of biological molecules and motifs to promote a desired cellular outcome, and the tailoring of kinetic and transport behavior through hybrid-hydrogel engineering to achieve desired biomedical outcomes. Recent progress in the field has established promising approaches for the development of biologically relevant hybrid hydrogel materials with potential applications in drug discovery, drug/gene delivery, and regenerative medicine.
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Affiliation(s)
- Luisa L. Palmese
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716
| | - Raj Kumar Thapa
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19716
| | - Millicent O. Sullivan
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19716
| | - Kristi L. Kiick
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716
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24
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Dignon G, Zheng W, Kim YC, Mittal J. Temperature-Controlled Liquid-Liquid Phase Separation of Disordered Proteins. ACS CENTRAL SCIENCE 2019; 5:821-830. [PMID: 31139718 PMCID: PMC6535772 DOI: 10.1021/acscentsci.9b00102] [Citation(s) in RCA: 160] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Indexed: 05/18/2023]
Abstract
The liquid-liquid phase separation (LLPS) of intrinsically disordered proteins (IDPs) is a commonly observed phenomenon within the cell, and such condensates are also highly attractive for applications in biomaterials and drug delivery. A better understanding of the sequence-dependent thermoresponsive behavior is of immense interest as it will aid in the design of protein sequences with desirable properties and in the understanding of cellular response to heat stress. In this work, we use a transferable coarse-grained model to directly probe the sequence-dependent thermoresponsive phase behavior of IDPs. To achieve this goal, we develop a unique knowledge-based amino acid potential that accounts for the temperature-dependent effects on solvent-mediated interactions for different types of amino acids. Remarkably, we are able to distinguish between more than 35 IDPs with upper or lower critical solution temperatures at experimental conditions, thus providing direct evidence that incorporating the temperature-dependent solvent-mediated interactions to IDP assemblies can capture the difference in the shape of the resulting phase diagrams. Given the success of the model in predicting experimental behavior, we use it as a high-throughput screening framework to scan through millions of disordered sequences to characterize the composition dependence of protein phase separation.
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Affiliation(s)
- Gregory
L. Dignon
- Department
of Chemical and Biomolecular Engineering, Lehigh University, 111 Research Drive, Bethlehem, Pennsylvania 18015, United States
| | - Wenwei Zheng
- College
of Integrative Sciences and Arts, Arizona
State University, Mesa, Arizona 85212, United
States
| | - Young C. Kim
- Center
for Materials Physics and Technology, Naval
Research Laboratory, Washington, D.C. 20375, United States
| | - Jeetain Mittal
- Department
of Chemical and Biomolecular Engineering, Lehigh University, 111 Research Drive, Bethlehem, Pennsylvania 18015, United States
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