99901
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Abstract
The enzyme-mediated polymerization of bioactive phenolic compounds, such as the flavonoid rutin, has gained interest due to the enhanced physico-chemical and biological properties of the products, which increases their potential application as a nutraceutical. In this work, the influence of enzyme activity on rutin oligomerization was evaluated in reactions with low (1000 U/L) and high (10,000 U/L) initial laccase activities. For both reactions, high molecular weight oligomer fractions showed better properties compared to lower weight oligomers. Products of the reaction with low laccase activity exhibited thermal stability and antioxidant potential similar to control reaction, but led to higher inhibitory activity of xanthine oxidase and apparent aqueous solubility. Oligomers obtained in the reaction with high laccase activity showed better apparent aqueous solubility but decreased biological activities and stability. Their low antioxidant activity was correlated with a decreased phenolic content, which could be attributed to the formation of several bonds between rutin molecules.
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99902
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Kumar A, Pisula W, Müllen K. Molecular self-assembly and morphology induction in high-performance aromatic phosphonated block copolymers. J Appl Polym Sci 2018. [DOI: 10.1002/app.46750] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Avneesh Kumar
- Institute of Organic Chemistry; Technical University of Darmstadt, Alarich-Weiss-Street 4; Darmstadt 64287 Germany
| | - Wojciech Pisula
- Department of Molecular Physics, Faculty of Chemistry; Lodz University of Technology, Zeromskiego 116; 90-924 Lodz Poland
- Max Planck Institute for Polymer Research, Ackermannweg 10; Mainz 55128 Germany
| | - Klaus Müllen
- Max Planck Institute for Polymer Research, Ackermannweg 10; Mainz 55128 Germany
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99903
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Varlas S, Blackman LD, Findlay HE, Reading E, Booth PJ, Gibson MI, O’Reilly RK. Photoinitiated Polymerization-Induced Self-Assembly in the Presence of Surfactants Enables Membrane Protein Incorporation into Vesicles. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b00994] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Spyridon Varlas
- School of Chemistry, University of Birmingham, B15 2TT Birmingham, U.K
| | | | - Heather E. Findlay
- Department of Chemistry, King’s College London, Britannia House, 7 Trinity Street, SE1 1DB London, U.K
| | - Eamonn Reading
- Department of Chemistry, King’s College London, Britannia House, 7 Trinity Street, SE1 1DB London, U.K
| | - Paula J. Booth
- Department of Chemistry, King’s College London, Britannia House, 7 Trinity Street, SE1 1DB London, U.K
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99904
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Abstract
Nanoparticle delivery systems offer advantages over free drugs, in that they increase solubility and biocompatibility. Nanoparticles can deliver a high payload of therapeutic molecules while limiting off-target side effects. Therefore, delivery of an existing drug with a nanoparticle frequently results in an increased therapeutic index. Whether of synthetic or biologic origin, nanoparticle surface coatings are often required to reduce immune clearance and thereby increase circulation times allowing the carriers to reach their target site. To this end, polyethylene glycol (PEG) has long been used, with several PEGylated products reaching clinical use. Unfortunately, the growing use of PEG in consumer products has led to an increasing prevalence of PEG-specific antibodies in the human population, which in turn has fueled the search for alternative coating strategies. This review highlights alternative bioinspired nanoparticle shielding strategies, which may be more beneficial moving forward than PEG and other synthetic polymer coatings.
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Affiliation(s)
- Neetu M. Gulati
- Department of Pharmacology, Division of General Medical Sciences Oncology, Case Western Reserve University, Cleveland, Ohio
- Cleveland Center for Membrane and Structural Biology, Division of General Medical Sciences Oncology, Case Western Reserve University, Cleveland, Ohio
| | - Phoebe L. Stewart
- Department of Pharmacology, Division of General Medical Sciences Oncology, Case Western Reserve University, Cleveland, Ohio
- Cleveland Center for Membrane and Structural Biology, Division of General Medical Sciences Oncology, Case Western Reserve University, Cleveland, Ohio
| | - Nicole F. Steinmetz
- Department of Biomedical Engineering, Division of General Medical Sciences Oncology, Case Western Reserve University, Cleveland, Ohio
- Department of Radiology, Division of General Medical Sciences Oncology, Case Western Reserve University, Cleveland, Ohio
- Department of Materials Science and Engineering, Division of General Medical Sciences Oncology, Case Western Reserve University, Cleveland, Ohio
- Department of Macromolecular Science and Engineering, Division of General Medical Sciences Oncology, Case Western Reserve University, Cleveland, Ohio
- Case Comprehensive Cancer Center, Division of General Medical Sciences Oncology, Case Western Reserve University, Cleveland, Ohio
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99905
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Narayan R, Nayak UY, Raichur AM, Garg S. Mesoporous Silica Nanoparticles: A Comprehensive Review on Synthesis and Recent Advances. Pharmaceutics 2018; 10:E118. [PMID: 30082647 PMCID: PMC6160987 DOI: 10.3390/pharmaceutics10030118] [Citation(s) in RCA: 399] [Impact Index Per Article: 66.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 07/28/2018] [Accepted: 07/31/2018] [Indexed: 12/18/2022] Open
Abstract
Recent advancements in drug delivery technologies utilizing a variety of carriers have resulted in a path-breaking revolution in the approach towards diagnosis and therapy alike in the current times. Need for materials with high thermal, chemical and mechanical properties have led to the development of mesoporous silica nanoparticles (MSNs). These ordered porous materials have garnered immense attention as drug carriers owing to their distinctive features over the others. They can be synthesized using a relatively simple process, thus making it cost effective. Moreover, by controlling the parameters during the synthesis; the morphology, pore size and volume and particle size can be transformed accordingly. Over the last few years, a rapid increase in research on MSNs as drug carriers for the treatment of various diseases has been observed indicating its potential benefits in drug delivery. Their widespread application for the loading of small molecules as well as macromolecules such as proteins, siRNA and so forth, has made it a versatile carrier. In the recent times, researchers have sorted to several modifications in the framework of MSNs to explore its potential in drug resistant chemotherapy, antimicrobial therapy. In this review, we have discussed the synthesis of these multitalented nanoparticles and the factors influencing the size and morphology of this wonder carrier. The second part of this review emphasizes on the applications and the advances made in the MSNs to broaden the spectrum of its use especially in the field of biomedicine. We have also touched upon the lacunae in the thorough understanding of its interaction with a biological system which poses a major hurdle in the passage of this carrier to the clinical level. In the final part of this review, we have discussed some of the major patents filed in the field of MSNs for therapeutic purpose.
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Affiliation(s)
- Reema Narayan
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences,Manipal Academy of Higher Education, Manipal 576104, India.
| | - Usha Y Nayak
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences,Manipal Academy of Higher Education, Manipal 576104, India.
| | - Ashok M Raichur
- Department of Materials Engineering, Indian Institute of Science, Bengaluru 560012, India.
| | - Sanjay Garg
- School of Pharmacy and Medical Science, University of South Australia, Adelaide, SA 5000, Australia.
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99906
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Park J, Cho H, Hwang D, Kim S, Moon I, Kim M. Design of a Novel Process for Continuous Lactide Synthesis from Lactic Acid. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b02419] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Jinwoo Park
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Hyungtae Cho
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Dongwon Hwang
- Green Carbon Catalysis Research Group, Korea Research Institute of Chemical Technology (KRICT), 141Gajeongro, Yuseong, Daejeon 34114, Republic of Korea
| | - Seungnam Kim
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Il Moon
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Myungjun Kim
- Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, Republic of Korea
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99907
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Posey ND, Hango CR, Minter LM, Tew GN. The Role of Cargo Binding Strength in Polymer-Mediated Intracellular Protein Delivery. Bioconjug Chem 2018; 29:2679-2690. [DOI: 10.1021/acs.bioconjchem.8b00363] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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99908
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Jirofti N, Mohebbi-Kalhori D, Samimi A, Hadjizadeh A, Kazemzadeh GH. Small-diameter vascular graft using co-electrospun composite PCL/PU nanofibers. Biomed Mater 2018; 13:055014. [DOI: 10.1088/1748-605x/aad4b5] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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99909
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Midha S, Kumar S, Sharma A, Kaur K, Shi X, Naruphontjirakul P, Jones JR, Ghosh S. Silk fibroin-bioactive glass based advanced biomaterials: towards patient-specific bone grafts. Biomed Mater 2018; 13:055012. [DOI: 10.1088/1748-605x/aad2a9] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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99910
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Costa E, González-García C, Gómez Ribelles JL, Salmerón-Sánchez M. Maintenance of chondrocyte phenotype during expansion on PLLA microtopographies. J Tissue Eng 2018; 9:2041731418789829. [PMID: 30093985 PMCID: PMC6080075 DOI: 10.1177/2041731418789829] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 06/26/2018] [Indexed: 12/15/2022] Open
Abstract
Articular chondrocytes are difficult to grow, as they lose their characteristic
phenotype following expansion on standard tissue culture plates. Here, we show
that culturing them on surfaces of poly(L-lactic acid) of well-defined
microtopography allows expansion and maintenance of characteristic chondrogenic
markers. We investigated the dynamics of human chondrocyte dedifferentiation on
the different poly(L-lactic acid) microtopographies by the expression of
collagen type I, collagen type II and aggrecan at different culture times. When
seeded on poly(L-lactic acid), chondrocytes maintained their characteristic
hyaline phenotype up to 7 days, which allowed to expand the initial cell
population approximately six times without cell dedifferentiation. Maintenance
of cell phenotype was afterwards correlated to cell adhesion on the different
substrates. Chondrocytes adhesion occurs via the
α5β1 integrin on
poly(L-lactic acid), suggesting cell–fibronectin interactions. However,
α2β1 integrin is
mainly expressed on the control substrate after 1 day of culture, and the
characteristic chondrocytic markers are lost (collagen type II expression is
overcome by the synthesis of collagen type I). Expanding chondrocytes on
poly(L-lactic acid) might be an effective solution to prevent dedifferentiation
and improving the number of cells needed for autologous chondrocyte
transplantation.
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Affiliation(s)
- Elisa Costa
- Centre for Biomaterials and Tissue
Engineering (CBIT), Universitat Politècnica de València, Valencia, Spain
| | | | - José Luis Gómez Ribelles
- Centre for Biomaterials and Tissue
Engineering (CBIT), Universitat Politècnica de València, Valencia, Spain
- Biomedical Research Networking Center in
Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Valencia, Spain
| | - Manuel Salmerón-Sánchez
- Centre for Biomaterials and Tissue
Engineering (CBIT), Universitat Politècnica de València, Valencia, Spain
- Biomedical Research Networking Center in
Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Valencia, Spain
- Centre for the Cellular
Microenvironment, University of Glasgow, Glasgow, UK
- Manuel Salmerón-Sánchez, Centre for the
Cellular Microenvironment, School of Engineering, Rankine Bld, Oakfield Av, G12
8LT, University of Glasgow, Glasgow, UK.
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99911
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Effect of Differently Extracted Arabinoxylan on Gluten-Free Sourdough-Bread Properties. J FOOD QUALITY 2018. [DOI: 10.1155/2018/5719681] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The role of arabinoxylans (AXs) in bread-making has gained interest due to their positive contribution to bread quality. Therefore, the effect of differently extracted (water, alkaline, or enzymatic) rye AXs on gluten-free (GF) buckwheat and millet batter rheology and bread properties was evaluated. The results showed that the addition of AXs influenced most of the batter and bread properties differently, which depended on the chemical and structural properties of the AXs. All batter systems displayed a typical weak gel behavior. Enzyme- (Pentopan Mono BG-) extracted AXs (PEAXs) were able to strengthen both millet and buckwheat batter structures to a greater degree, as seen by the increase in storage modulus. Regarding bread properties, in buckwheat breads, calcium hydroxide-extracted AX (CEAX) was able to improve the specific volume (from 1.73 to 1.93 cm3/g) and firmness (from 10.88 to 4.69 N) the most, compared to the control. The AXs extracted successively with water and the enzyme Pentopan Mono BG (WPEAX) produced the highest loaf volume (2.39 cm3/g) and one of the lowest crumb firmness values (5.51 N) but caused larger pores and a ruptured crust. In millet breads, water-extracted AXs (WEAXs) and CEAX produced lowest crumb hardness (WEAX: 6.94 N; CEAX: 8.53 N). Specific volume was highest in breads with WEAX (2.35 cm3/g), but CEAX displayed a better pore structure. Overall, water-extracted AXs improved the GF bread properties to a higher extent than alkaline-extracted AXs. Only CEAX displayed a comparable effect in some cases, and considering the fact that alkaline extraction of AX is much more efficient (much higher yield), its application compared to other AXs could be more favorable. Overall, AXs hold great potential as baking improvers for GF bread; the extent of their improvement will be defined by their functional properties.
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99912
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Li L, Zhou S, Lv N, Zhen Z, Liu T, Gao S, Xie J, Ma Q. Photosensitizer-Encapsulated Ferritins Mediate Photodynamic Therapy against Cancer-Associated Fibroblasts and Improve Tumor Accumulation of Nanoparticles. Mol Pharm 2018; 15:3595-3599. [PMID: 29966416 PMCID: PMC6435375 DOI: 10.1021/acs.molpharmaceut.8b00419] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Nanoparticles have been widely tested as drug delivery carriers or imaging agents, largely because of their ability to selectively accumulate in tumors through the enhanced permeability and retention (EPR) effect. However, studies show that many tumors afford a less efficient EPR effect and that many nanoparticles are trapped in the perivascular region after extravasation and barely migrate into tumor centers. This is to a large degree attributed to the dense tumor extracellular matrix (ECM), which functions as a physical barrier to prevent efficient nanoparticle extravasation and diffusion. In this study, we report a photodynamic therapy (PDT) approach to enhance tumor uptake of nanoparticles. Briefly, we encapsulate ZnF16Pc, a photosensitizer, into ferritin nanocages, and then conjugate to the surface of the ferritin a single chain viable fragment (scFv) sequence specific to fibroblast activation protein (FAP). FAP is a plasma surface protein widely upregulated in cancer-associated fibroblasts (CAFs), which is a major source of the ECM fiber components. We found that the scFv-conjugated and ZnF16Pc-loaded ferritin nanoparticles (scFv-Z@FRT) can mediate efficient and selective PDT, leading to eradication of CAFs in tumors. When tested in bilateral 4T1 tumor models, we found that the tumor accumulation of serum albumin (BSA), 10 nm quantum dots (QDs), and 50 nm QDs was increased by 2-, 3.5-, and 18-fold after scFv-Z@FRT mediated PDT. Our studies suggest a novel and safe method to enhance the delivery of nanoparticles to tumors.
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Affiliation(s)
- Lu Li
- Department of Nuclear Medicine, China-Japan Union Hospital of Jilin University, 126 Xiantai Street, ErDao District, Changchun 13033, China
| | - Shiyi Zhou
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, USA
| | - NingNing Lv
- Department of Nuclear Medicine, China-Japan Union Hospital of Jilin University, 126 Xiantai Street, ErDao District, Changchun 13033, China
| | - Zipeng Zhen
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, USA
| | - Tianji Liu
- Department of Nuclear Medicine, China-Japan Union Hospital of Jilin University, 126 Xiantai Street, ErDao District, Changchun 13033, China
| | - Shi Gao
- Department of Nuclear Medicine, China-Japan Union Hospital of Jilin University, 126 Xiantai Street, ErDao District, Changchun 13033, China
| | - Jin Xie
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, USA
- Bio-Imaging Research Center, University of Georgia, Athens, Georgia 30602, USA
| | - Qingjie Ma
- Department of Nuclear Medicine, China-Japan Union Hospital of Jilin University, 126 Xiantai Street, ErDao District, Changchun 13033, China
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99913
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Li X, Figg CA, Wang R, Jiang Y, Lyu Y, Sun H, Liu Y, Wang Y, Teng IT, Hou W, Cai R, Cui C, Li L, Pan X, Sumerlin BS, Tan W. Cross-Linked Aptamer-Lipid Micelles for Excellent Stability and Specificity in Target-Cell Recognition. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201804682] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Xiaowei Li
- Center for Research at the Bio/Nano Interface; Department of Chemistry and Department of Physiology and Functional Genomics; Health Cancer Center; UF Genetics Institute and McKnight Brain Institute; University of Florida; Gainesville FL 32611 USA
| | - C. Adrian Figg
- George and Josephine Butler Polymer Research Laboratory; Center for Macromolecular Science and Engineering; Department of Chemistry; University of Florida; Gainesville FL 32611-7200 USA
| | - Ruowen Wang
- Molecular Science and Biomedicine Laboratory (MBL); State Key Laboratory of Chemo/Bio-Sensing and Chemometrics; College of Life Sciences and College of Chemistry and Chemical Engineering; Aptamer Engineering; Center of Hunan Province; Hunan University; Changsha Hunan 410082 China
- Institute of Molecular Medicine, Renji Hospital; Shanghai Jiao Tong University School of Medicine; College of Chemistry and Chemical Engineering; Shanghai 200240 China
| | - Ying Jiang
- Center for Research at the Bio/Nano Interface; Department of Chemistry and Department of Physiology and Functional Genomics; Health Cancer Center; UF Genetics Institute and McKnight Brain Institute; University of Florida; Gainesville FL 32611 USA
- Molecular Science and Biomedicine Laboratory (MBL); State Key Laboratory of Chemo/Bio-Sensing and Chemometrics; College of Life Sciences and College of Chemistry and Chemical Engineering; Aptamer Engineering; Center of Hunan Province; Hunan University; Changsha Hunan 410082 China
| | - Yifan Lyu
- Center for Research at the Bio/Nano Interface; Department of Chemistry and Department of Physiology and Functional Genomics; Health Cancer Center; UF Genetics Institute and McKnight Brain Institute; University of Florida; Gainesville FL 32611 USA
- Molecular Science and Biomedicine Laboratory (MBL); State Key Laboratory of Chemo/Bio-Sensing and Chemometrics; College of Life Sciences and College of Chemistry and Chemical Engineering; Aptamer Engineering; Center of Hunan Province; Hunan University; Changsha Hunan 410082 China
- Institute of Molecular Medicine, Renji Hospital; Shanghai Jiao Tong University School of Medicine; College of Chemistry and Chemical Engineering; Shanghai 200240 China
| | - Hao Sun
- George and Josephine Butler Polymer Research Laboratory; Center for Macromolecular Science and Engineering; Department of Chemistry; University of Florida; Gainesville FL 32611-7200 USA
| | - Yuan Liu
- Molecular Science and Biomedicine Laboratory (MBL); State Key Laboratory of Chemo/Bio-Sensing and Chemometrics; College of Life Sciences and College of Chemistry and Chemical Engineering; Aptamer Engineering; Center of Hunan Province; Hunan University; Changsha Hunan 410082 China
| | - Yanyue Wang
- Center for Research at the Bio/Nano Interface; Department of Chemistry and Department of Physiology and Functional Genomics; Health Cancer Center; UF Genetics Institute and McKnight Brain Institute; University of Florida; Gainesville FL 32611 USA
| | - I-Ting Teng
- Center for Research at the Bio/Nano Interface; Department of Chemistry and Department of Physiology and Functional Genomics; Health Cancer Center; UF Genetics Institute and McKnight Brain Institute; University of Florida; Gainesville FL 32611 USA
| | - Weijia Hou
- Center for Research at the Bio/Nano Interface; Department of Chemistry and Department of Physiology and Functional Genomics; Health Cancer Center; UF Genetics Institute and McKnight Brain Institute; University of Florida; Gainesville FL 32611 USA
| | - Ren Cai
- Molecular Science and Biomedicine Laboratory (MBL); State Key Laboratory of Chemo/Bio-Sensing and Chemometrics; College of Life Sciences and College of Chemistry and Chemical Engineering; Aptamer Engineering; Center of Hunan Province; Hunan University; Changsha Hunan 410082 China
| | - Cheng Cui
- Center for Research at the Bio/Nano Interface; Department of Chemistry and Department of Physiology and Functional Genomics; Health Cancer Center; UF Genetics Institute and McKnight Brain Institute; University of Florida; Gainesville FL 32611 USA
- Molecular Science and Biomedicine Laboratory (MBL); State Key Laboratory of Chemo/Bio-Sensing and Chemometrics; College of Life Sciences and College of Chemistry and Chemical Engineering; Aptamer Engineering; Center of Hunan Province; Hunan University; Changsha Hunan 410082 China
| | - Long Li
- Center for Research at the Bio/Nano Interface; Department of Chemistry and Department of Physiology and Functional Genomics; Health Cancer Center; UF Genetics Institute and McKnight Brain Institute; University of Florida; Gainesville FL 32611 USA
| | - Xiaoshu Pan
- Center for Research at the Bio/Nano Interface; Department of Chemistry and Department of Physiology and Functional Genomics; Health Cancer Center; UF Genetics Institute and McKnight Brain Institute; University of Florida; Gainesville FL 32611 USA
| | - Brent S. Sumerlin
- George and Josephine Butler Polymer Research Laboratory; Center for Macromolecular Science and Engineering; Department of Chemistry; University of Florida; Gainesville FL 32611-7200 USA
| | - Weihong Tan
- Center for Research at the Bio/Nano Interface; Department of Chemistry and Department of Physiology and Functional Genomics; Health Cancer Center; UF Genetics Institute and McKnight Brain Institute; University of Florida; Gainesville FL 32611 USA
- Molecular Science and Biomedicine Laboratory (MBL); State Key Laboratory of Chemo/Bio-Sensing and Chemometrics; College of Life Sciences and College of Chemistry and Chemical Engineering; Aptamer Engineering; Center of Hunan Province; Hunan University; Changsha Hunan 410082 China
- Institute of Molecular Medicine, Renji Hospital; Shanghai Jiao Tong University School of Medicine; College of Chemistry and Chemical Engineering; Shanghai 200240 China
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99914
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Petersen SR, Wilson JA, Becker ML. Versatile Ring-Opening Copolymerization and Postprinting Functionalization of Lactone and Poly(propylene fumarate) Block Copolymers: Resorbable Building Blocks for Additive Manufacturing. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b01372] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Shannon R. Petersen
- Department of Polymer Science, University of Akron, Akron, Ohio 44325, United States
| | - James A. Wilson
- Department of Polymer Science, University of Akron, Akron, Ohio 44325, United States
| | - Matthew L. Becker
- Department of Polymer Science, University of Akron, Akron, Ohio 44325, United States
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99915
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Aytemiz D, Fukuda Y, Higuchi A, Asano A, Nakazawa CT, Kameda T, Yoshioka T, Nakazawa Y. Compatibility Evaluation of Non-Woven Sheet Composite of Silk Fibroin and Polyurethane in the Wet State. Polymers (Basel) 2018; 10:polym10080874. [PMID: 30960799 PMCID: PMC6403721 DOI: 10.3390/polym10080874] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 08/01/2018] [Accepted: 08/02/2018] [Indexed: 01/07/2023] Open
Abstract
SF/polyurethane composite non-woven sheet was fabricated to evaluate the cardiovascular tissue engineering materials in the wet state. The compatibility and microstructure analyses were carried out on the fabricated SF/polyurethane composite non-woven sheet by thermal analysis and solid-state NMR analysis in the wet state. To evaluate the modulus of elasticity, a tensile test was performed and supported with dynamic viscoelasticity and mechanical analysis. Results showed that SF/polyurethane composites form domains within the non-woven sheet and are in a finely dispersed state while maintaining their structures at a scale of several tens of nm. Moreover, an increase of the loss tangent with low elastic modulus proved that a micromolecular interaction occurs between silk fibroin (SF) and polyurethane molecules.
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Affiliation(s)
- Derya Aytemiz
- Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan.
| | - Yasuhiro Fukuda
- Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan.
| | - Akira Higuchi
- Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan.
| | - Atsushi Asano
- Department of Applied Chemistry, National Defense Academy, 1-10-20 Hashirimizu, Yokosuka, Kanagawa 239-8686, Japan.
| | - Chikako T Nakazawa
- Department of Applied Chemistry, National Defense Academy, 1-10-20 Hashirimizu, Yokosuka, Kanagawa 239-8686, Japan.
| | - Tsunenori Kameda
- Silk Material Research Unit, Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, Ohwashi, Tsukuba, Ibaraki 305-8634, Japan.
| | - Taiyo Yoshioka
- Silk Material Research Unit, Institute of Agrobiological Sciences, National Agriculture and Food Research Organization, Ohwashi, Tsukuba, Ibaraki 305-8634, Japan.
| | - Yasumoto Nakazawa
- Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan.
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99916
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Keya JJ, Kabir AMR, Inoue D, Sada K, Hess H, Kuzuya A, Kakugo A. Control of swarming of molecular robots. Sci Rep 2018; 8:11756. [PMID: 30082825 PMCID: PMC6079095 DOI: 10.1038/s41598-018-30187-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 07/17/2018] [Indexed: 12/19/2022] Open
Abstract
Recently we demonstrated swarming of a self-propelled biomolecular motor system microtubule (MT)-kinesin where interactions among thousands of motile MTs were regulated in a highly programmable fashion by using DNA as a processor. However, precise control of this potential system is yet to be achieved to optimize the swarm behavior. In this work, we systematically controlled swarming of MTs on kinesin adhered surface by different physicochemical parameters of MT-kinesin and DNA. Tuning the length of DNA sequences swarming was precisely controlled with thermodynamic and kinetic feasibility. In addition, swarming was regulated using different concentration of DNA crosslinkers. Reversibility of swarming was further controlled by changing the concentration of strand displacement DNA signal allowing dissociation of swarm. The control over the swarm was accompanied by variable stiffness of MTs successfully, providing translational and circular motion. Moreover, the morphology of swarm was also found to be changed not only depending on the stiffness but also body length of MTs. Such detail study of precise control of swarming would provide new insights in developing a promising molecular swarm robotic system with desired functions.
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Affiliation(s)
- Jakia Jannat Keya
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, 060-0810, Japan
| | | | - Daisuke Inoue
- Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan
| | - Kazuki Sada
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, 060-0810, Japan
- Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan
| | - Henry Hess
- Department of Biomedical Engineering, Columbia University, 1210 Amsterdam Ave., New York, NY, 10027, USA
| | - Akinori Kuzuya
- Department of Chemistry and Materials Engineering, Kansai University, Osaka, 564-8680, Japan.
| | - Akira Kakugo
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, Sapporo, 060-0810, Japan.
- Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan.
- Department of Biomedical Engineering, Columbia University, 1210 Amsterdam Ave., New York, NY, 10027, USA.
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99917
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Duijvelshoff R, van Engeland NCA, Gabriels KMR, Söntjens SHM, Smits AIPM, Dankers PYW, Bouten CVC. Host Response and Neo-Tissue Development during Resorption of a Fast Degrading Supramolecular Electrospun Arterial Scaffold. Bioengineering (Basel) 2018; 5:bioengineering5030061. [PMID: 30082586 PMCID: PMC6164451 DOI: 10.3390/bioengineering5030061] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 07/23/2018] [Accepted: 08/03/2018] [Indexed: 01/16/2023] Open
Abstract
In situ vascular tissue engineering aims to regenerate vessels "at the target site" using synthetic scaffolds that are capable of inducing endogenous regeneration. Critical to the success of this approach is a fine balance between functional neo-tissue formation and scaffold degradation. Circulating immune cells are important regulators of this process as they drive the host response to the scaffold and they play a central role in scaffold resorption. Despite the progress made with synthetic scaffolds, little is known about the host response and neo-tissue development during and after scaffold resorption. In this study, we designed a fast-degrading biodegradable supramolecular scaffold for arterial applications and evaluated this development in vivo. Bisurea-modified polycaprolactone (PCL2000-U4U) was electrospun in tubular scaffolds and shielded by non-degradable expanded polytetrafluoroethylene in order to restrict transmural and transanastomotic cell ingrowth. In addition, this shield prevented graft failure, permitting the study of neo-tissue and host response development after degradation. Scaffolds were implanted in 60 healthy male Lewis rats as an interposition graft into the abdominal aorta and explanted at different time points up to 56 days after implantation to monitor sequential cell infiltration, differentiation, and tissue formation in the scaffold. Endogenous tissue formation started with an acute immune response, followed by a dominant presence of pro-inflammatory macrophages during the first 28 days. Next, a shift towards tissue-producing cells was observed, with a striking increase in α-Smooth Muscle Actin-positive cells and extracellular matrix by day 56. At that time, the scaffold was resorbed and immune markers were low. These results suggest that neo-tissue formation was still in progress, while the host response became quiescent, favoring a regenerative tissue outcome. Future studies should confirm long-term tissue homeostasis, but require the strengthening of the supramolecular scaffold if a non-shielded model will be used.
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Affiliation(s)
- Renee Duijvelshoff
- Department of Biomedical Engineering, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands.
- Institute for Complex Molecular Systems (ICMS), 5600 MB Eindhoven, The Netherlands.
| | - Nicole C A van Engeland
- Department of Biomedical Engineering, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands.
| | - Karen M R Gabriels
- Department of Biomedical Engineering, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands.
- Institute for Complex Molecular Systems (ICMS), 5600 MB Eindhoven, The Netherlands.
| | | | - Anthal I P M Smits
- Department of Biomedical Engineering, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands.
- Institute for Complex Molecular Systems (ICMS), 5600 MB Eindhoven, The Netherlands.
| | - Patricia Y W Dankers
- Department of Biomedical Engineering, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands.
- Institute for Complex Molecular Systems (ICMS), 5600 MB Eindhoven, The Netherlands.
| | - Carlijn V C Bouten
- Department of Biomedical Engineering, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands.
- Institute for Complex Molecular Systems (ICMS), 5600 MB Eindhoven, The Netherlands.
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99918
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Grant DS, Siegele R, Bazaka K, Jacob MV. Formation of nanocrystalline and amorphous carbon by high fluence swift heavy ion irradiation of a plasma polymerized polyterpenol thin film precursor. J Appl Polym Sci 2018. [DOI: 10.1002/app.46498] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Daniel S. Grant
- College of Science and EngineeringJames Cook UniversityTownsville Queensland 4811 Australia
| | - Rainer Siegele
- Institute for Environmental Research, Australian Nuclear Science and Technology OrganisationLucas Heights New South Wales 2234 Australia
| | - Kateryna Bazaka
- College of Science and EngineeringJames Cook UniversityTownsville Queensland 4811 Australia
- School of Chemistry, Physics, and Mechanical EngineeringQueensland University of TechnologyBrisbane Queensland 4000 Australia
| | - Mohan V. Jacob
- College of Science and EngineeringJames Cook UniversityTownsville Queensland 4811 Australia
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99919
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Jeong J, Essafi M, Lee C, Haoues M, Diouani MF, Kim H, Kim Y. Ultrasensitive detection of hazardous reactive oxygen species using flexible organic transistors with polyphenol-embedded conjugated polymer sensing layers. JOURNAL OF HAZARDOUS MATERIALS 2018; 355:17-24. [PMID: 29763797 DOI: 10.1016/j.jhazmat.2018.04.063] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 04/16/2018] [Accepted: 04/25/2018] [Indexed: 06/08/2023]
Abstract
Here we report that superoxide, one of the hazardous reactive oxygen species (ROS), can be quickly detected by flexible organic field-effect transistors (OFETs) with the polyphenol-embedded conjugated polymer micro-channels. Rutin, one of the abundant polyphenols found in a variety of plants, was employed as a sensing molecule and embedded in the poly(3-hexylthiophene) (P3HT) matrix. The rutin-embedded P3HT layers showed randomly distributed micro-domains, which became bigger as the rutin content increased. The best transistor performance was achieved at the rutin content of 10 wt%, while the OFETs exhibited proper and controllable transistor performances even in the phosphate buffer solutions. The sensing test revealed that the present OFET sensors could stably detect superoxide using very small amount (<10 μl) of samples at extremely low concentrations (500 pM), while they exhibited outstanding stability and durability upon repeated detection and storage-reuse tests. Finally, the present flexible OFET sensors could deliver confident sensing results for the detection of superoxide generated from the mouse RAW264.7 macrophages.
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Affiliation(s)
- Jaehoon Jeong
- Organic Nanoelectronics Laboratory and KNU Institute for Nanophotonics Applications (KINPA), Department of Chemical Engineering, School of Applied Chemical Engineering, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Makram Essafi
- Laboratory of Transmission, Control and Immunobiology of Infections (LTCII), Institut Pasteur de Tunis, LR11IPT02, Tunis-Belvédère 1002, and Université Tunis El Manar, Tunis 1068, Tunisia
| | - Chulyeon Lee
- Organic Nanoelectronics Laboratory and KNU Institute for Nanophotonics Applications (KINPA), Department of Chemical Engineering, School of Applied Chemical Engineering, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Meriam Haoues
- Laboratory of Transmission, Control and Immunobiology of Infections (LTCII), Institut Pasteur de Tunis, LR11IPT02, Tunis-Belvédère 1002, and Université Tunis El Manar, Tunis 1068, Tunisia
| | - Mohamed Fethi Diouani
- Laboratory of Epidemiology and Veterinary Microbiology (LEMV), Institut Pasteur de Tunis, LR11IPT02, Tunis-Belvédère 1002, and Université Tunis El Manar, Tunis 1068, Tunisia
| | - Hwajeong Kim
- Priority Research Center, Research Institute of Advanced Energy Technology, Kyungpook National University, Daegu 41566, Republic of Korea.
| | - Youngkyoo Kim
- Organic Nanoelectronics Laboratory and KNU Institute for Nanophotonics Applications (KINPA), Department of Chemical Engineering, School of Applied Chemical Engineering, Kyungpook National University, Daegu 41566, Republic of Korea.
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99920
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Ali HM, El-Hashemy MA. Analytical investigation of the influence of ornidazole on the native protein fluorescence. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 201:178-184. [PMID: 29751351 DOI: 10.1016/j.saa.2018.05.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 04/06/2018] [Accepted: 05/01/2018] [Indexed: 06/08/2023]
Abstract
A novel spectrofluorimetric method for the determination of ornidazole (ORN) in pure form and dosage forms was developed based on the influence of ORN on the native fluorescence of bovine serum albumin (BSA) in a stimulated physiological environment. The obtained data reveal that the presence of ORN has a strong quenching effect on the fluorescence of BSA through both a dynamic and a static process. The parameters of the binding of ORN to BSA were calculated at different temperatures. Thermodynamic parameters values suggest a role of electrostatic and hydrophobic forces in the binding of ORN to BSA. The investigated method for the determination of ORN is accurate, precise and sensitive with a detection limit of 0.106 μg/mL and a quantification limit of 0.353 μg/mL. The quenching method was applied successfully in the determination of ORN in pure form and dosage forms.
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Affiliation(s)
- Hazim M Ali
- Department of Chemistry, College of Science, Jouf University, Sakaka, Saudi Arabia; Forensic Chemistry Department, Forensic Medicine Authority, Egypt.
| | - Mohammed A El-Hashemy
- Department of Chemistry, College of Science, Jouf University, Sakaka, Saudi Arabia; Air Pollution Research Department, Environmental Research Division, National Research Centre, 12622, Egypt
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99921
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Chakraborty S, Pagaduan JNM, Melgar ZKA, Seitz S, Kan K, Ajiro H. Glycerol-modified poly(ε-caprolactone): an biocatalytic approach to improve the hydrophilicity of poly(ε-caprolactone). Polym Bull (Berl) 2018. [DOI: 10.1007/s00289-018-2443-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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99922
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Hu Z, Zhang DY, Lu ST, Li PW, Li SD. Chitosan-Based Composite Materials for Prospective Hemostatic Applications. Mar Drugs 2018; 16:E273. [PMID: 30081571 PMCID: PMC6117657 DOI: 10.3390/md16080273] [Citation(s) in RCA: 143] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 07/27/2018] [Accepted: 08/02/2018] [Indexed: 01/22/2023] Open
Abstract
Effective hemostasis is vital to reduce the pain and mortality of patients, and the research and development of hemostatic materials are prerequisite for effective hemostasis. Chitosan (CS), with good biodegradability, biocompatibility and non-toxicity, has been widely applied in bio-medicine, the chemical industry, the food industry and cosmetics. The excellent hemostatic properties of CS have been extensively studied. As a result, chitosan-based composite hemostatic materials have been emerging. In this review, the hemostatic mechanism of chitosan is briefly discussed, and then the progress of research on chitosan-based composite hemostatic materials with multiple forms such as films, sponges, hydrogels, particles and fibers are introduced. Finally, future perspectives of chitosan-based composite hemostatic materials are given. The objective of this review is to provide a reference for further research and development of effective hemostatic materials.
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Affiliation(s)
- Zhang Hu
- Department of Applied Chemistry, School of Chemistry and Environmental Science, Guangdong Ocean University, Zhanjiang 524088, Guangdong, China.
| | - Dong-Ying Zhang
- Department of Applied Chemistry, School of Chemistry and Environmental Science, Guangdong Ocean University, Zhanjiang 524088, Guangdong, China.
| | - Si-Tong Lu
- Department of Applied Chemistry, School of Chemistry and Environmental Science, Guangdong Ocean University, Zhanjiang 524088, Guangdong, China.
| | - Pu-Wang Li
- Agricultural Product Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang 524001, Guangdong, China.
| | - Si-Dong Li
- Department of Applied Chemistry, School of Chemistry and Environmental Science, Guangdong Ocean University, Zhanjiang 524088, Guangdong, China.
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99923
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Infante JC. Nanoparticle-Based Systems for Delivery of Protein Therapeutics to the Spinal Cord. Front Neurosci 2018; 12:484. [PMID: 30072866 PMCID: PMC6060369 DOI: 10.3389/fnins.2018.00484] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Accepted: 06/26/2018] [Indexed: 12/15/2022] Open
Abstract
Recent studies have demonstrated that delivery of protein therapeutics to the spinal cord may promote functional axon regeneration, providing a pathway for recovery of certain motor skills. The timeframe for delivery of protein therapeutics, however, must be modulated to prevent bulk release of the therapeutics and minimize the frequency of implantations. This perspective examines both affinity-based and nanoparticle-based strategies for delivery of neurotrophic factors (NFs) to the spinal cord in an effective, safe, and tunable manner.
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Affiliation(s)
- Juan C Infante
- Department of Molecular and Cellular Biology, Harvard College, Harvard University, Cambridge, MA, United States
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99924
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Effect of 2-aminobenzothiazole on antimicrobial activity of waterborne polyurethane dispersions (WPUDs). Polym Bull (Berl) 2018. [DOI: 10.1007/s00289-018-2469-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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99925
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Hypoxia-responsive block copolymer radiosensitizers as anticancer drug nanocarriers for enhanced chemoradiotherapy of bulky solid tumors. Biomaterials 2018; 181:360-371. [PMID: 30098571 DOI: 10.1016/j.biomaterials.2018.08.014] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2018] [Revised: 07/10/2018] [Accepted: 08/03/2018] [Indexed: 12/12/2022]
Abstract
Radiosensitizers play an important role in the clinical radiotherapy of hypoxic solid tumors to improve therapeutic efficacy. However, the in vivo performance of clinically used small-molecule radiosensitizers is commonly compromised by low bioavailability in hypoxic tumor regions. Herein, amphiphilic block copolymer radiosensitizers are prepared from clinically approved poly(ethylene glycol)-block-poly(l-glutamic acid) (PEG-b-PLG) and metronidazole (MN) to obtain MN-grafted PEG-b-PLG (PEG-b-P(LG-g-MN)) via condensation reaction, which can self-assemble into core-shell micelles as nanoparticle-formulated radiosensitizers in aqueous solution. The radiosensitizers are demonstrated to possess significantly higher sensitization enhancement ratio (SER) of 2.18 and potent in vivo tumor ablation capability upon exposure to electron beam irradiation compared with clinically used sodium glycididazole (GS) with SER of 1.32. Moreover, after optimizing the ratios of carboxyl and MN groups, PEG-b-P(LG-g-MN) micelles can be used to encapsulate doxorubicin (DOX@HMs) efficiently. Hypoxia-responsive structural transformation of MN into hydrophilic aminoimidazole triggers fast DOX release from DOX@HMs. After intravenous injection of DOX@HMs, potent ablation capability against bulky solid tumors (∼500 mm3) is realized at a low radiation dose (4 Gy) via enhanced chemoradiotherapy. Therefore, the developed novel amphiphilic block copolymer radiosensitizers can be concurrently used as high-efficiency radiosensitizers and hypoxia-responsive DOX nanocarriers for enhanced chemoradiotherapy.
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99926
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A review of natural polysaccharides for drug delivery applications: Special focus on cellulose, starch and glycogen. Biomed Pharmacother 2018; 107:96-108. [PMID: 30086465 DOI: 10.1016/j.biopha.2018.07.136] [Citation(s) in RCA: 126] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 07/20/2018] [Accepted: 07/25/2018] [Indexed: 01/13/2023] Open
Abstract
Natural polysaccharides are renewable with a high degree of biocompatibility, biodegradability, and ability to mimic the natural extracellular matrix (ECM) microenvironment. Comprehensive investigations of polysaccharides are essential for our fundamental understanding of exploiting its potential as bio-composite, nano-conjugate and in pharmaceutical sectors. Polysaccharides are considered to be superior to other polymers, for its ease in tailoring, bio-compatibility, bio-activity, homogeneity and bio-adhesive properties. The main focus of this review is to spotlight the new advancements and challenges concerned with surface modification, binding domains, biological interaction with the conjugate including stability, polydispersity, and biodegradability. In this review, we have limited our survey to three essential polysaccharides including cellulose, starch, and glycogen that are sourced from plants, microbes, and animals respectively are reviewed. We also present the polysaccharides which have been extensively modified with the various types of conjugates for combating last-ditch pharmaceutical challenges.
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99927
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Reinišová L, Novotný F, Pumera M, Kološtová K, Hermanová S. Nanoparticles Based on Poly(trimethylene carbonate) Triblock Copolymers with Post-Crystallization Ability and Their Degradation in vitro. Macromol Res 2018. [DOI: 10.1007/s13233-019-7007-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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99928
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Cardiac differentiation of induced pluripotent stem cells on elastin-like protein-based hydrogels presenting a single-cell adhesion sequence. Polym J 2018. [DOI: 10.1038/s41428-018-0110-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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99929
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Chen D, Zhang Y, Pan X, Wang F, Huang S. Oxidation of Tertiary Aromatic Alcohols to Ketones in Water. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800612] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Dengfeng Chen
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources; Nanjing Forestry University; Nanjing 210037 People's Republic of China
| | - Yuchen Zhang
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources; Nanjing Forestry University; Nanjing 210037 People's Republic of China
| | - Xingyu Pan
- Department of Chemistry; Tsinghua University; Beijing 100084 People's Republic of China
| | - Fei Wang
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources; Nanjing Forestry University; Nanjing 210037 People's Republic of China
| | - Shenlin Huang
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources; Nanjing Forestry University; Nanjing 210037 People's Republic of China
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99930
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Wang Y, Ma M, Wang J, Zhang W, Lu W, Gao Y, Zhang B, Guo Y. Development of a Photo-Crosslinking, Biodegradable GelMA/PEGDA Hydrogel for Guided Bone Regeneration Materials. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E1345. [PMID: 30081450 PMCID: PMC6119853 DOI: 10.3390/ma11081345] [Citation(s) in RCA: 107] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 07/29/2018] [Accepted: 07/31/2018] [Indexed: 01/17/2023]
Abstract
Gelatin-based hydrogel, which mimics the natural dermal extracellular matrix, is a promising tissue engineering material. However, insufficient and uncontrollable mechanical and degradation properties remain the major obstacles for its application in medical bone regeneration material. Herein, we develop a facile but efficient strategy for a novel hydrogel as guided bone regeneration (GBR) material. In this study, methacrylic anhydride (MA) has been used to modify gelatin to obtain photo-crosslinkable methacrylated gelatin (GelMA). Moreover, the GelMA/PEGDA hydrogel was prepared by photo-crosslinking GelMA and PEGDA with photoinitiator I2959 under UV treatment. Compared with the GelMA hydrogel, the GelMA/PEGDA hydrogel exhibits several times stronger mechanical properties than pure GelMA hydrogel. The GelMA/PEGDA hydrogel shows a suitable degradation rate of more than 4 weeks, which is beneficial to implant in body. In vitro cell culture showed that osteoblast can adhere and proliferate on the surface of the hydrogel, indicating that the GelMA/PEGDA hydrogel had good cell viability and biocompatibility. Furthermore, by changing the quantities of GelMA, I2959, and PEGDA, the gelation time can be controlled easily to meet the requirement of its applications. In short, this study demonstrated that PEGDA enhanced the performance and extended the applications of GelMA hydrogels, turning the GelMA/PEGDA hydrogel into an excellent GBR material.
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Affiliation(s)
- Yihu Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China.
- Hangzhou Branch of Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Hangzhou 310018, China.
| | - Ming Ma
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
| | - Jianing Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Weijie Zhang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
| | - Weipeng Lu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
- Hangzhou Branch of Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Hangzhou 310018, China.
| | - Yunhua Gao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
| | - Bing Zhang
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
| | - Yanchuan Guo
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China.
- Hangzhou Branch of Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Hangzhou 310018, China.
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99931
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Adachi M, Noji M, So M, Sasahara K, Kardos J, Naiki H, Goto Y. Aggregation-phase diagrams of β 2-microglobulin reveal temperature and salt effects on competitive formation of amyloids versus amorphous aggregates. J Biol Chem 2018; 293:14775-14785. [PMID: 30077972 DOI: 10.1074/jbc.ra118.004683] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 07/28/2018] [Indexed: 11/06/2022] Open
Abstract
Several serious diseases are associated with crystal-like amyloid fibrils or glass-like amorphous aggregates of denatured proteins. However, protein aggregation involving both types of aggregates has not yet been elucidated in much detail. Using a protein associated with dialysis-related amyloidosis, β2-microglobulin (β2m), we previously demonstrated that amyloid fibrils and amorphous aggregates form competitively depending on salt (NaCl) concentration. To examine the generality of the underlying competitive mechanisms, we herein investigated the effects of heat on acid-denatured β2m at pH 2. Using thioflavin fluorescence, CD, and light scattering analysis along with atomic force microscopy imaging, we found that the temperature-dependent aggregation of β2m markedly depends on NaCl concentration. Stepwise transitions from monomers to amyloids and then back to monomers were observed at low NaCl concentrations. Amorphous aggregates formed rapidly at ambient temperatures at high NaCl concentrations, but the transition from amorphous aggregates to amyloids occurred only as the temperature increased. Combining the data from the temperature- and NaCl-dependent transitions, we constructed a unified phase diagram of conformational states, indicating a parabolic solubility curve with a minimum NaCl concentration at ambient temperatures. Although amyloid fibrils formed above this solubility boundary, amorphous aggregates dominated in regions distant from this boundary. Kinetic competition between supersaturation-limited slow amyloid fibrillation and supersaturation-unlimited fast amorphous aggregation deformed the phase diagram, with amyloid regions disappearing with fast titration rates. We conclude that phase diagrams combining thermodynamics and kinetics data provide a comprehensive view of β2m aggregation exhibiting severe hysteresis depending on the heat- or salt-titration rates.
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Affiliation(s)
- Masayuki Adachi
- From the Institute for Protein Research, Osaka University, Osaka 565-0871, Japan
| | - Masahiro Noji
- From the Institute for Protein Research, Osaka University, Osaka 565-0871, Japan
| | - Masatomo So
- From the Institute for Protein Research, Osaka University, Osaka 565-0871, Japan
| | - Kenji Sasahara
- From the Institute for Protein Research, Osaka University, Osaka 565-0871, Japan
| | - József Kardos
- the ELTE NAP Neuroimmunology Research Group, Department of Biochemistry, Eötvös Loránd University, Budapest 1117, Hungary, and
| | - Hironobu Naiki
- Faculty of Medical Sciences, University of Fukui, Fukui 910-1193, Japan
| | - Yuji Goto
- From the Institute for Protein Research, Osaka University, Osaka 565-0871, Japan,
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99932
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Miri AK, Khalilpour A, Cecen B, Maharjan S, Shin SR, Khademhosseini A. Multiscale bioprinting of vascularized models. Biomaterials 2018; 198:204-216. [PMID: 30244825 DOI: 10.1016/j.biomaterials.2018.08.006] [Citation(s) in RCA: 130] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 05/24/2018] [Accepted: 08/02/2018] [Indexed: 12/18/2022]
Abstract
A basic prerequisite for the survival and function of three-dimensional (3D) engineered tissue constructs is the establishment of blood vessels. 3D bioprinting of vascular networks with hierarchical structures that resemble in vivo structures has allowed blood circulation within thick tissue constructs to accelerate vascularization and enhance tissue regeneration. Successful rapid vascularization of tissue constructs requires synergy between fabrication of perfusable channels and functional bioinks that induce angiogenesis and capillary formation within constructs. Combinations of 3D bioprinting techniques and four-dimensional (4D) printing concepts through patterning proangiogenic factors may offer novel solutions for implantation of thick constructs. In this review, we cover current bioprinting techniques for vascularized tissue constructs with vasculatures ranging from capillaries to large blood vessels and discuss how to implement these approaches for patterning proangiogenic factors to maintain long-term, stimuli-controlled formation of new capillaries.
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Affiliation(s)
- Amir K Miri
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA; Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA; Department of Mechanical Engineering, Rowan University, Glassboro, NJ 08028, USA.
| | - Akbar Khalilpour
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA; Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA
| | - Berivan Cecen
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA; Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA
| | - Sushila Maharjan
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA; Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA
| | - Su Ryon Shin
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA; Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA
| | - Ali Khademhosseini
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA; Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA; Department of Bioengineering, Department of Chemical and Biomolecular Engineering, Henry Samueli School of Engineering and Applied Sciences, University of California-Los Angeles, Los Angeles, CA, USA; Department of Radiology, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, USA; Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA, USA; California NanoSystems Institute (CNSI), University of California-Los Angeles, Los Angeles, CA, USA; Department of Bioindustrial Technologies, College of Animal Bioscience and Technology, Konkuk University, Seoul, Republic of Korea; Center for Nanotechnology, King Abdulaziz University, Jeddah 21569, Saudi Arabia.
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99933
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Liu G, Wu Q, Dwivedi P, Hu C, Zhu Z, Shen S, Chu J, Zhao G, Si T, Xu R. Hemoglobin-Laden Microcapsules for Simulating Oxygen Dynamics of Biological Tissue. ACS Biomater Sci Eng 2018; 4:3177-3184. [DOI: 10.1021/acsbiomaterials.8b00830] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Guangli Liu
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Huangshan Road, Hefei, Anhui 230027, China
| | - Qiang Wu
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Huangshan Road, Hefei, Anhui 230027, China
| | - Pankaj Dwivedi
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Huangshan Road, Hefei, Anhui 230027, China
| | - Chuanzhen Hu
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Huangshan Road, Hefei, Anhui 230027, China
| | - Zhiqiang Zhu
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Huangshan Road, Hefei, Anhui 230027, China
| | - Shuwei Shen
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Huangshan Road, Hefei, Anhui 230027, China
| | - Jiaru Chu
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Huangshan Road, Hefei, Anhui 230027, China
| | - Gang Zhao
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Huangshan Road, Hefei, Anhui 230027, China
| | - Ting Si
- Department of Modern Mechanics, University of Science and Technology of China, Huangshan Road, Hefei, Anhui 230027, China
| | - Ronald Xu
- Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Huangshan Road, Hefei, Anhui 230027, China
- Department of Biomedical Engineering, The Ohio State University, 1080 Carmack Road, Columbus, Ohio 43210, United States
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99934
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Loyez M, Albert J, Caucheteur C, Wattiez R. Cytokeratins Biosensing Using Tilted Fiber Gratings. BIOSENSORS-BASEL 2018; 8:bios8030074. [PMID: 30081506 PMCID: PMC6163579 DOI: 10.3390/bios8030074] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 07/31/2018] [Accepted: 08/01/2018] [Indexed: 02/04/2023]
Abstract
Optical fiber gratings have widely proven their applicability in biosensing, especially when they are coupled with antibodies for specific antigen recognition. While this is customarily done with fibers coated by a thin metal film to benefit from plasmonic enhancement, in this paper, we propose to study their intrinsic properties, developing a label-free sensor for the detection of biomarkers in real-time without metal coatings for surface plasmon resonances. We focus on the inner properties of our modal sensor by immobilizing receptors directly on the silica surface, and reporting the sensitivity of bare tilted fiber Bragg gratings (TFBGs) used at near infrared wavelengths. We test different strategies to build our sensing surface against cytokeratins and show that the most reliable functionalization method is the electrostatic adsorption of antibodies on the fiber, allowing a limit of detection reaching 14 pM by following the guided cladding modes near the cut-off area. These results present the biodetection performance that TFBGs bring through their modal properties for different functionalizations and data processing strategies.
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Affiliation(s)
- Médéric Loyez
- Proteomics and Microbiology Department, University of Mons, Champ de Mars 6, 7000 Mons, Belgium.
| | - Jacques Albert
- Department of Electronics, Carleton University, Mackenzie Building 5170, 1125 Colonel by Drive, Ottawa, ON K1S 5B6, Canada.
| | - Christophe Caucheteur
- Electromagnetism and Telecommunication Department, University of Mons, Bld Dolez 31, 7000 Mons, Belgium.
| | - Ruddy Wattiez
- Proteomics and Microbiology Department, University of Mons, Champ de Mars 6, 7000 Mons, Belgium.
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99935
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Li J, Liu P. pH/Reduction Dual-Triggered Degradable Poly(doxorubicin) Prodrug Nanoparticles for Leakage-Free Tumor-Specific Self-Delivery. Macromol Rapid Commun 2018; 39:e1800381. [DOI: 10.1002/marc.201800381] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 07/10/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Jiagen Li
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province; College of Chemistry and Chemical Engineering; Lanzhou University; Lanzhou 730000 China
| | - Peng Liu
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province; College of Chemistry and Chemical Engineering; Lanzhou University; Lanzhou 730000 China
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99936
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Future Research Directions in the Design of Versatile Extracellular Matrix in Tissue Engineering. Int Neurourol J 2018; 22:S66-75. [PMID: 30068068 PMCID: PMC6077942 DOI: 10.5213/inj.1836154.077] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 07/12/2018] [Indexed: 12/19/2022] Open
Abstract
Native and artificial extracellular matrices (ECMs) have been widely applied in biomedical fields as one of the most effective components in tissue regeneration. In particular, ECM-based drugs are expected to be applied to treat diseases in organs relevant to urology, because tissue regeneration is particularly important for preventing the recurrence of these diseases. Native ECMs provide a complex in vivo architecture and native physical and mechanical properties that support high biocompatibility. However, the applications of native ECMs are limited due to their tissue-specificity and chemical complexity. Artificial ECMs have been fabricated in an attempt to create a broadly applicable scaffold by using controllable components and a uniform formulation. On the other hands, artificial ECMs fail to mimic the properties of a native ECM; consequently, their applications in tissues are also limited. For that reason, the design of a versatile, hybrid ECM that can be universally applied to various tissues is an emerging area of interest in the biomedical field.
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99937
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Fernández-Pérez EJ, Sepúlveda FJ, Peters C, Bascuñán D, Riffo-Lepe NO, González-Sanmiguel J, Sánchez SA, Peoples RW, Vicente B, Aguayo LG. Effect of Cholesterol on Membrane Fluidity and Association of Aβ Oligomers and Subsequent Neuronal Damage: A Double-Edged Sword. Front Aging Neurosci 2018; 10:226. [PMID: 30123122 PMCID: PMC6085471 DOI: 10.3389/fnagi.2018.00226] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Accepted: 07/03/2018] [Indexed: 02/06/2023] Open
Abstract
Background: The beta-amyloid peptide (Aβ) involved in Alzheimer's disease (AD) has been described to associate/aggregate on the cell surface disrupting the membrane through pore formation and breakage. However, molecular determinants involved for this interaction (e.g., some physicochemical properties of the cell membrane) are largely unknown. Since cholesterol is an important molecule for membrane structure and fluidity, we examined the effect of varying cholesterol content with the association and membrane perforation by Aβ in cultured hippocampal neurons. Methods: To decrease or increase the levels of cholesterol in the membrane we used methyl-β-cyclodextrin (MβCD) and MβCD/cholesterol, respectively. We analyzed if membrane fluidity was affected using generalized polarization (GP) imaging and the fluorescent dye di-4-ANEPPDHQ. Additionally membrane association and perforation was assessed using immunocytochemistry and electrophysiological techniques, respectively. Results: The results showed that cholesterol removal decreased the macroscopic association of Aβ to neuronal membranes (fluorescent-puncta/20 μm: control = 18 ± 2 vs. MβCD = 10 ± 1, p < 0.05) and induced a facilitation of the membrane perforation by Aβ with respect to control cells (half-time for maximal charge transferred: control = 7.2 vs. MβCD = 4.4). Under this condition, we found an increase in membrane fluidity (46 ± 3.3% decrease in GP value, p < 0.001). On the contrary, increasing cholesterol levels incremented membrane rigidity (38 ± 2.7% increase in GP value, p < 0.001) and enhanced the association and clustering of Aβ (fluorescent-puncta/20 μm: control = 18 ± 2 vs. MβCD = 10 ± 1, p < 0.01), but inhibited membrane disruption. Conclusion: Our results strongly support the significance of plasma membrane organization in the toxic effects of Aβ in hippocampal neurons, since fluidity can regulate distribution and insertion of the Aβ peptide in the neuronal membrane.
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Affiliation(s)
- Eduardo J Fernández-Pérez
- Laboratory of Neurophysiology, Department of Physiology, Universidad de Concepción, Concepción, Chile
| | - Fernando J Sepúlveda
- Laboratory of Neurophysiology, Department of Physiology, Universidad de Concepción, Concepción, Chile
| | - Christian Peters
- Laboratory of Neurophysiology, Department of Physiology, Universidad de Concepción, Concepción, Chile
| | - Denisse Bascuñán
- Laboratory of Neurophysiology, Department of Physiology, Universidad de Concepción, Concepción, Chile
| | - Nicolás O Riffo-Lepe
- Laboratory of Neurophysiology, Department of Physiology, Universidad de Concepción, Concepción, Chile
| | | | - Susana A Sánchez
- Departamento de Polímeros, Facultad de Ciencias Químicas, Universidad de Concepción, Concepción, Chile
| | - Robert W Peoples
- Department of Biomedical Sciences, Marquette University, Milwaukee, WI, United States
| | - Benjamín Vicente
- Department of Psychiatry and Mental Health, Universidad de Concepción, Concepción, Chile
| | - Luis G Aguayo
- Laboratory of Neurophysiology, Department of Physiology, Universidad de Concepción, Concepción, Chile
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99938
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Sun L, Gao W, Fu X, Shi M, Xie W, Zhang W, Zhao F, Chen X. Enhanced wound healing in diabetic rats by nanofibrous scaffolds mimicking the basketweave pattern of collagen fibrils in native skin. Biomater Sci 2018; 6:340-349. [PMID: 29265119 DOI: 10.1039/c7bm00545h] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Nanofibrous scaffolds that offer proper microenvironmental cues to promote the healing process are highly desirable for patients with chronic wounds. Although studies have shown that fiber organization regulates cell behaviors in vitro, little is known about its effects on the wound healing process in vivo. Most of the nanofibrous scaffolds currently used in skin repair are randomly oriented. Herein, inspired by the basketweave-like pattern of collagen fibrils in native skin, we fabricated biomimetic nanofibrous scaffolds with crossed fiber organization via electrospinning. The regulation of crossed nanofibrous scaffolds on fibroblasts was compared with that of aligned and random nanofibrous scaffolds. Unexpectedly, crossed nanofibrous scaffolds induced different cellular responses in fibroblasts, including differences in cellular morphology, migration and wound healing related gene expression, in comparison to either aligned or random nanofibrous scaffolds. More importantly, the regulation of nanofibrous scaffolds with different fiber organizations on wound repair was systematically investigated in diabetic rats. While the healing processes were enhanced by all nanofibrous scaffolds, wounds treated with crossed nanofibrous scaffolds achieved the best healing outcome, which was evidenced by the resolution of inflammation, the accelerated migration of fibroblasts and keratinocytes, and the promotion of angiogenesis. These findings helped reveal the role of fiber organization in regulating the wound healing process in vivo and suggest the potential utility of biomimetic crossed nanofibrous scaffolds for the repair of chronic wounds.
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Affiliation(s)
- Luyao Sun
- School of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, People's Republic of China.
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99939
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Ren E, Lei Z, Wang J, Zhang Y, Liu G. Magnetosome Modification: From Bio-Nano Engineering Toward Nanomedicine. ADVANCED THERAPEUTICS 2018. [DOI: 10.1002/adtp.201800080] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- En Ren
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics and Center for Molecular Imaging and Translational Medicine; School of Public Health; Xiamen University; Xiamen 361102 China
| | - Zhao Lei
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics and Center for Molecular Imaging and Translational Medicine; School of Public Health; Xiamen University; Xiamen 361102 China
| | - Junqing Wang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics and Center for Molecular Imaging and Translational Medicine; School of Public Health; Xiamen University; Xiamen 361102 China
| | - Yang Zhang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics and Center for Molecular Imaging and Translational Medicine; School of Public Health; Xiamen University; Xiamen 361102 China
| | - Gang Liu
- State Key Laboratory of Cellular Stress Biology; Innovation Center for Cell Biology; School of Life Sciences; Xiamen University; Xiamen 361102 China
- The MOE Key Laboratory of Spectrochemical Analysis & Instrumentation; College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 China
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99940
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Dhand C, Balakrishnan Y, Ong ST, Dwivedi N, Venugopal JR, Harini S, Leung CM, Low KZW, Loh XJ, Beuerman RW, Ramakrishna S, Verma NK, Lakshminarayanan R. Antimicrobial quaternary ammonium organosilane cross-linked nanofibrous collagen scaffolds for tissue engineering. Int J Nanomedicine 2018; 13:4473-4492. [PMID: 30122921 PMCID: PMC6080871 DOI: 10.2147/ijn.s159770] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Introduction In search for cross-linkers with multifunctional characteristics, the present work investigated the utility of quaternary ammonium organosilane (QOS) as a potential cross-linker for electrospun collagen nanofibers. We hypothesized that the quaternary ammonium ions improve the electrospinnability by reducing the surface tension and confer antimicrobial properties, while the formation of siloxane after alkaline hydrolysis could cross-link collagen and stimulate cell proliferation. Materials and methods QOS collagen nanofibers were electrospun by incorporating various concentrations of QOS (0.1%–10% w/w) and were cross-linked in situ after exposure to ammonium carbonate. The QOS cross-linked scaffolds were characterized and their biological properties were evaluated in terms of their biocompatibility, cellular adhesion and metabolic activity for primary human dermal fibroblasts and human fetal osteoblasts. Results and discussion The study revealed that 1) QOS cross-linking increased the flexibility of otherwise rigid collagen nanofibers and improved the thermal stability; 2) QOS cross-linked mats displayed potent antibacterial activity and 3) the biocompatibility of the composite mats depended on the amount of QOS present in dope solution – at low QOS concentrations (0.1% w/w), the mats promoted mammalian cell proliferation and growth, whereas at higher QOS concentrations, cytotoxic effect was observed. Conclusion This study demonstrates that QOS cross-linked mats possess anti-infective properties and confer niches for cellular growth and proliferation, thus offering a useful approach, which is important for hard and soft tissue engineering and regenerative medicine.
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Affiliation(s)
- Chetna Dhand
- Anti-Infectives Research Group, Singapore Eye Research Institute, The Academia, Discovery Tower, Singapore, , .,Ophthalmology and Visual Sciences Academic Clinical Program, Duke-NUS Graduate Medical School, Singapore,
| | | | - Seow Theng Ong
- Dermatology and Skin Biology, Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore,
| | - Neeraj Dwivedi
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore
| | - Jayarama R Venugopal
- Faculty of Industrial Sciences & Technology, Universiti Malaysia Pahang, Gambang, Malaysia
| | - Sriram Harini
- Anti-Infectives Research Group, Singapore Eye Research Institute, The Academia, Discovery Tower, Singapore, ,
| | - Chak Ming Leung
- Department of Bioengineering, National University of Singapore, Singapore
| | - Kenny Zhi Wei Low
- Department of Mechanical Engineering, Faculty of Engineering, Center for Nanofibers and Nanotechnology, National University of Singapore, Singapore
| | - Xian Jun Loh
- Department of Mechanical Engineering, Faculty of Engineering, Center for Nanofibers and Nanotechnology, National University of Singapore, Singapore
| | - Roger W Beuerman
- Anti-Infectives Research Group, Singapore Eye Research Institute, The Academia, Discovery Tower, Singapore, , .,Ophthalmology and Visual Sciences Academic Clinical Program, Duke-NUS Graduate Medical School, Singapore,
| | - Seeram Ramakrishna
- Soft Materials Department, Institute of Materials Research and Engineering, ASTAR (Agency for Science, Technology and Research, Singapore
| | - Navin Kumar Verma
- Anti-Infectives Research Group, Singapore Eye Research Institute, The Academia, Discovery Tower, Singapore, , .,Dermatology and Skin Biology, Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore,
| | - Rajamani Lakshminarayanan
- Anti-Infectives Research Group, Singapore Eye Research Institute, The Academia, Discovery Tower, Singapore, , .,Ophthalmology and Visual Sciences Academic Clinical Program, Duke-NUS Graduate Medical School, Singapore,
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99941
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Miao M, Jiang B, Jin Z, BeMiller JN. Microbial Starch-Converting Enzymes: Recent Insights and Perspectives. Compr Rev Food Sci Food Saf 2018; 17:1238-1260. [PMID: 33350152 DOI: 10.1111/1541-4337.12381] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 06/28/2018] [Accepted: 07/02/2018] [Indexed: 11/28/2022]
Affiliation(s)
- Ming Miao
- State Key Laboratory of Food Science & Technology; Jiangnan Univ.; 1800 Lihu Ave. Wuxi Jiangsu 214122 P. R. China
| | - Bo Jiang
- State Key Laboratory of Food Science & Technology; Jiangnan Univ.; 1800 Lihu Ave. Wuxi Jiangsu 214122 P. R. China
| | - Zhengyu Jin
- State Key Laboratory of Food Science & Technology; Jiangnan Univ.; 1800 Lihu Ave. Wuxi Jiangsu 214122 P. R. China
| | - James N. BeMiller
- State Key Laboratory of Food Science & Technology; Jiangnan Univ.; 1800 Lihu Ave. Wuxi Jiangsu 214122 P. R. China
- Dept. of Food Science; Whistler Center for Carbohydrate Research, Purdue Univ.; 745 Agriculture Mall Drive West Lafayette IN 47907-2009 U.S.A
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99942
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Wang Y, Zhang S, Benoit DSW. Degradable poly(ethylene glycol) (PEG)-based hydrogels for spatiotemporal control of siRNA/nanoparticle delivery. J Control Release 2018; 287:58-66. [PMID: 30077736 DOI: 10.1016/j.jconrel.2018.08.002] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 07/21/2018] [Accepted: 08/01/2018] [Indexed: 01/02/2023]
Abstract
Despite great therapeutic potential and development of a repertoire of delivery approaches addressing degradation and cellular uptake limitations, small interfering RNA (siRNA) exhibits poorly controlled tissue-specific localization. To overcome this hurdle, siRNA was complexed to nanoparticles (siRNA/NP) embedded within poly(ethylene glycol)-poly(lactic acid)-dimethacrylate (PEG-PLA-DM) hydrogels with the hypothesis that hydrolytic degradation of ester bonds within the PLA crosslinks would provide tunable, sustained siRNA/NP release. Hydrogels formed from macromers with increasing PLA repeats (e.g., 0 or non-degradable to 5 PLA repeats flanking PEG cores) and mixtures of nondegradable PEG-DM (0 PLA) and degradable PEG-PLA5-DM macromers were investigated. Hydrogels formed only with fully degradable crosslinks degraded rapidly over 6-14 days with limited control over siRNA/NP release. However, hydrogels formed with mixtures of nondegradable and 20%, 50%, and 100% degradable macromers resulted in siRNA/NP release over 3 to 28 days. Subsequently, gene silencing mediated by released siRNA/NP from 20% and 50% degradable hydrogels was sustained for ~28 days. Furthermore, in vivo imaging showed that hydrogel degradation controlled siRNA/NP localization, with sustained siRNA/NP release from 0%, 20% and 50% degradable hydrogels over 28, 21, and 15 days. A model, which accounts for hydrogel degradation rate and siRNA/NP diffusion, was developed to enable rational design of siRNA/NP delivery depots. Overall, this study shows that siRNA/NP release can be sustained via encapsulation in hydrogels with tunable degradation kinetics and modeled for a priori design of delivery depots.
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Affiliation(s)
- Yuchen Wang
- Department of Biomedical Engineering, 308 Robert B. Goergen Hall, University of Rochester, Rochester, NY 14627, USA; Center for Musculoskeletal Research, 601 Elmwood Ave, University of Rochester Medical Center, Rochester, NY 14642, USA.
| | - Sue Zhang
- Department of Biomedical Engineering, 308 Robert B. Goergen Hall, University of Rochester, Rochester, NY 14627, USA.
| | - Danielle S W Benoit
- Department of Biomedical Engineering, 308 Robert B. Goergen Hall, University of Rochester, Rochester, NY 14627, USA; Center for Musculoskeletal Research, 601 Elmwood Ave, University of Rochester Medical Center, Rochester, NY 14642, USA; Departments of Chemical Engineering, 4510 Wegmans Hall, University of Rochester, Rochester, NY 14627, USA; Departments of Orthopaedics, 601 Elmwood Ave, University of Rochester, Rochester, NY 14642, USA; Departments of Biomedical Genetics, 601 Elmwood Ave, University of Rochester, Rochester, NY 14642, USA.
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99943
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Lancaster L, Abdallah W, Banta S, Wheeldon I. Engineering enzyme microenvironments for enhanced biocatalysis. Chem Soc Rev 2018; 47:5177-5186. [PMID: 29796541 DOI: 10.1039/c8cs00085a] [Citation(s) in RCA: 93] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Protein engineering provides a means to alter protein structure leading to new functions. Much work has focused on the engineering of enzyme active sites to enhance catalytic activity, however there is an increasing trend towards engineering other aspects of biocatalysts as these efforts can also lead to useful improvements. This tutorial discusses recent advances in engineering an enzyme's local chemical and physical environment, with the goal of enhancing enzyme reaction kinetics, substrate selectivity, and activity in harsh conditions (e.g., low or high pH). By introducing stimuli-responsiveness to these enzyme modifications, dynamic control of activity also becomes possible. These new biomolecular and protein engineering techniques are separate and independent from traditional active site engineering and can therefore be applied synergistically to create new biocatalyst technologies with novel functions.
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Affiliation(s)
- Louis Lancaster
- Department of Chemical and Environmental Engineering, University of California, Riverside, Riverside, CA 92521, USA.
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99944
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Xu CR, Qiu L, Pan CY, Hong CY, Hao ZY. Efficient Synthesis of Polymer Prodrug by Thiol–Acrylate Michael Addition Reaction and Fabrication of pH-Responsive Prodrug Nanoparticles. Bioconjug Chem 2018; 29:3203-3212. [DOI: 10.1021/acs.bioconjchem.8b00531] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Chao-Ran Xu
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Liang Qiu
- Institute of Biophysics, Hebei University of Technology, Tianjin, 300401, China
| | - Cai-Yuan Pan
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Chun-Yan Hong
- CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Zong-Yao Hao
- Department of Urology, the First Affiliated Hospital of Anhui Medical University and Institute of Urology, Anhui Medical University, Hefei, Anhui 230026, China
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99945
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Li Y, Vergaelen M, Pan X, Du Prez FE, Hoogenboom R, De Clerck K. In Situ Cross-Linked Nanofibers by Aqueous Electrospinning of Selenol-Functionalized Poly(2-oxazoline)s. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b01113] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Yin Li
- Department of Materials, Textiles and Chemical Engineering, Ghent University, Technologiepark 907, 9052 Ghent, Belgium
| | - Maarten Vergaelen
- Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, 9000 Ghent, Belgium
| | - Xiangqiang Pan
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Filip E. Du Prez
- Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, 9000 Ghent, Belgium
| | - Richard Hoogenboom
- Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, 9000 Ghent, Belgium
| | - Karen De Clerck
- Department of Materials, Textiles and Chemical Engineering, Ghent University, Technologiepark 907, 9052 Ghent, Belgium
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99946
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Zhao Z, Du T, Liang F, Liu S. Amphiphilic DNA Organic Hybrids: Functional Materials in Nanoscience and Potential Application in Biomedicine. Int J Mol Sci 2018; 19:E2283. [PMID: 30081520 PMCID: PMC6121482 DOI: 10.3390/ijms19082283] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Revised: 07/23/2018] [Accepted: 07/30/2018] [Indexed: 12/13/2022] Open
Abstract
Due to the addressability and programmability, DNA has been applied not merely in constructing static elegant nanostructures such as two dimensional and three dimensional DNA nanostructures but also in designing dynamic nanodevices. Moreover, DNA could combine with hydrophobic organic molecules to be a new amphiphilic building block and then self-assemble into nanomaterials. Of particular note, a recent state-of-the-art research has turned our attention to the amphiphilic DNA organic hybrids including small molecule modified DNA (lipid-DNA, fluorescent molecule-DNA, etc.), DNA block copolymers, and DNA-dendron hybrids. This review focuses mainly on the development of their self-assembly behavior and their potential application in nanomaterial and biomedicine. The potential challenges regarding of the amphiphilic DNA organic hybrids are also briefly discussed, aiming to advance their practical applications in nanoscience and biomedicine.
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Affiliation(s)
- Zhiyong Zhao
- The State Key Laboratory of Refractories and Metallurgy, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China.
| | - Ting Du
- The State Key Laboratory of Refractories and Metallurgy, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China.
| | - Feng Liang
- The State Key Laboratory of Refractories and Metallurgy, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China.
| | - Simin Liu
- The State Key Laboratory of Refractories and Metallurgy, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China.
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99947
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K. J. N, Balaji AN, Ramanujam NR. Isolation and characterization of cellulose nanocrystals from Saharan aloe vera cactus fibers. INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION 2018. [DOI: 10.1080/1023666x.2018.1478366] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Nagarajan K. J.
- Department of Mechanical Engineering, K.L.N. College of Engineering, Pottapalayam, India
| | - A. N. Balaji
- Department of Mechanical Engineering, K.L.N. College of Engineering, Pottapalayam, India
| | - N. R. Ramanujam
- Department of Physics, K.L.N. College of Engineering, Pottapalayam, India
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99948
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Hajipour AR, Zakery S. α-ZrP/Uracil/Cu2+nanoparticles as an efficient catalyst in the Morita-Baylis-Hillman reaction. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4487] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Abdol R. Hajipour
- Pharmaceutical Research Laboratory, Department of Chemistry; Isfahan University of Technology; Isfahan 84156-83111 Iran
| | - Saedeh Zakery
- Pharmaceutical Research Laboratory, Department of Chemistry; Isfahan University of Technology; Isfahan 84156-83111 Iran
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99949
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Intanoo M, Kongkeitkajorn MB, Pattarajinda V, Bernard JK, Callaway TR, Suriyasathaporn W, Phasuk Y. Isolation and screening of aflatoxin-detoxifying yeast and bacteria from ruminal fluids to reduce aflatoxin B 1 contamination in dairy cattle feed. J Appl Microbiol 2018; 125:1603-1613. [PMID: 30074672 DOI: 10.1111/jam.14060] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 07/24/2018] [Accepted: 07/26/2018] [Indexed: 12/01/2022]
Abstract
AIMS To obtain yeast and bacteria from ruminal fluids that possess aflatoxin B1 (AFB1 ) detoxifying ability for use in animal feed. METHODS AND RESULTS Sources of isolation were ruminal fluids of three nonfistulated dairy cows, fed diets containing cassava pulp, rice straw or distillery yeast sludge. The isolation was carried out to screen for the isolates that were active in both anaerobic and aerobic conditions. Three yeast and three bacteria isolates were selected. Up to 85% of AFB1 was detoxified by yeast isolates and up to 60% AFB1 reduction was evident by bacteria isolates. Two yeast isolates were identified as Kluyveromyces marxianus and one isolate as Pichia kudriavzevii. The three bacteria isolates were identified as Enterococcus faecium, Corynebacterium phoceense and C. vitaeruminis. All strains showed high biomass production when cultivated in medium with 80 g l-1 glucose. CONCLUSIONS The isolated yeast and bacteria with AFB1 detoxifying ability showed a good potential to be applied as an aflatoxin-detoxifying agent to ingredients used to feed dairy cattle. SIGNIFICANCE AND IMPACT OF THE STUDY The abilities of isolates to survive and be active in anaerobic and aerobic conditions rendered them to be active in cattle's rumen. Their biomass could be produced in bulk and used as feed supplement for aflatoxin detoxification in dairy cattle.
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Affiliation(s)
- M Intanoo
- Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen, Thailand
- Graduate School, Khon Kaen University, Khon Kaen, Thailand
| | - M B Kongkeitkajorn
- Department of Biotechnology, Faculty of Technology, Khon Kaen University, Khon Kaen, Thailand
- Fermentation Research Center for Value Added Agricultural Products, Faculty of Technology, Khon Kaen University, Khon Kaen, Thailand
| | - V Pattarajinda
- Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen, Thailand
| | - J K Bernard
- Department of Animal and Dairy Science, College of Agricultural and Environmental Science, The University of Georgia, Athens, GA, USA
| | - T R Callaway
- Department of Animal and Dairy Science, College of Agricultural and Environmental Science, The University of Georgia, Athens, GA, USA
| | - W Suriyasathaporn
- Department of Feed Animal Clinics, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Y Phasuk
- Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen, Thailand
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99950
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Diogo GS, Senra EL, Pirraco RP, Canadas RF, Fernandes EM, Serra J, Pérez-Martín RI, Sotelo CG, Marques AP, González P, Moreira-Silva J, Silva TH, Reis RL. Marine Collagen/Apatite Composite Scaffolds Envisaging Hard Tissue Applications. Mar Drugs 2018; 16:E269. [PMID: 30081528 PMCID: PMC6117652 DOI: 10.3390/md16080269] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 07/21/2018] [Accepted: 08/01/2018] [Indexed: 12/02/2022] Open
Abstract
The high prevalence of bone defects has become a worldwide problem. Despite the significant amount of research on the subject, the available therapeutic solutions lack efficiency. Autografts, the most commonly used approaches to treat bone defects, have limitations such as donor site morbidity, pain and lack of donor site. Marine resources emerge as an attractive alternative to extract bioactive compounds for further use in bone tissue-engineering approaches. On one hand they can be isolated from by-products, at low cost, creating value from products that are considered waste for the fish transformation industry. One the other hand, religious constraints will be avoided. We isolated two marine origin materials, collagen from shark skin (Prionace glauca) and calcium phosphates from the teeth of two different shark species (Prionace glauca and Isurus oxyrinchus), and further proposed to mix them to produce 3D composite structures for hard tissue applications. Two crosslinking agents, 1-[3-(dimethylamino)propyl]-3-ethylcarbodiimide hydrochloride/N-Hydroxysuccinimide (EDC/NHS) and hexamethylene diisocyanate (HMDI), were tested to enhance the scaffolds' properties, with EDC/NHS resulting in better properties. The characterization of the structures showed that the developed composites could support attachment and proliferation of osteoblast-like cells. A promising scaffold for the engineering of bone tissue is thus proposed, based on a strategy of marine by-products valorisation.
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Affiliation(s)
- Gabriela S Diogo
- 3B's Research Group-Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, 4805-017 Barco, Guimarães, Portugal.
- ICVS/3B's-PT Government Associate Laboratory, 4806-909 Braga/Guimarães, Portugal.
| | - Estefânia L Senra
- New Materials Group, Department of Applied Physics, Instituto de Investigación Sanitaria Galicia Sur IISGS, University of Vigo, Campus Lagoas-Marcosende, 36310 Vigo, Spain.
| | - Rogério P Pirraco
- 3B's Research Group-Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, 4805-017 Barco, Guimarães, Portugal.
- ICVS/3B's-PT Government Associate Laboratory, 4806-909 Braga/Guimarães, Portugal.
| | - Raphael F Canadas
- 3B's Research Group-Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, 4805-017 Barco, Guimarães, Portugal.
- ICVS/3B's-PT Government Associate Laboratory, 4806-909 Braga/Guimarães, Portugal.
| | - Emanuel M Fernandes
- 3B's Research Group-Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, 4805-017 Barco, Guimarães, Portugal.
- ICVS/3B's-PT Government Associate Laboratory, 4806-909 Braga/Guimarães, Portugal.
| | - Julia Serra
- New Materials Group, Department of Applied Physics, Instituto de Investigación Sanitaria Galicia Sur IISGS, University of Vigo, Campus Lagoas-Marcosende, 36310 Vigo, Spain.
| | | | - Carmen G Sotelo
- Instituto de Investigaciones Marinas (CSIC), Eduardo Cabello 6, 36208 Vigo, Spain.
| | - Alexandra P Marques
- 3B's Research Group-Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, 4805-017 Barco, Guimarães, Portugal.
- ICVS/3B's-PT Government Associate Laboratory, 4806-909 Braga/Guimarães, Portugal.
| | - Pio González
- New Materials Group, Department of Applied Physics, Instituto de Investigación Sanitaria Galicia Sur IISGS, University of Vigo, Campus Lagoas-Marcosende, 36310 Vigo, Spain.
| | - Joana Moreira-Silva
- 3B's Research Group-Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, 4805-017 Barco, Guimarães, Portugal.
- ICVS/3B's-PT Government Associate Laboratory, 4806-909 Braga/Guimarães, Portugal.
| | - Tiago H Silva
- 3B's Research Group-Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, 4805-017 Barco, Guimarães, Portugal.
- ICVS/3B's-PT Government Associate Laboratory, 4806-909 Braga/Guimarães, Portugal.
| | - Rui L Reis
- 3B's Research Group-Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Parque de Ciência e Tecnologia, 4805-017 Barco, Guimarães, Portugal.
- ICVS/3B's-PT Government Associate Laboratory, 4806-909 Braga/Guimarães, Portugal.
- The Discoveries Centre for Regenerative and Precision Medicine, Headquarters at University of Minho, Avepark, 4805-017 Barco, Guimarães, Portugal.
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