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Alves P, Simão AF, Graça MFP, Mariz MJ, Correia IJ, Ferreira P. Dextran-Based Injectable Hydrogel Composites for Bone Regeneration. Polymers (Basel) 2023; 15:4501. [PMID: 38231931 PMCID: PMC10707775 DOI: 10.3390/polym15234501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 11/13/2023] [Accepted: 11/14/2023] [Indexed: 01/19/2024] Open
Abstract
Currently, bone infections caused by diseases or injuries are a major health issue. In addition, the conventional therapeutic approaches used to treat bone diseases or injuries present several drawbacks. In the area of tissue engineering, researchers have been developing new alternative therapeutic approaches, such as scaffolds, to promote the regeneration of injured tissues. Despite the advantages of these materials, most of them require an invasive surgical procedure. To overcome these problems, the main focus of this work was to develop scaffolds for bone regeneration, which can be applied using injectable hydrogels that circumvent the use of invasive procedures, while allowing for bone regeneration. Throughout this work, injectable hydrogels were developed based on a natural polymer, dextran, along with the use of two inorganic compounds, calcium β-triphosphate and nanohydroxyapatite, that aimed to reinforce the mechanical properties of the 3D mesh. The materials were chemically characterized considering the requirements for the intended application: the swelling capacity was evaluated, the degradation rate in a simulated physiological environment was assessed, and compression tests were performed. Furthermore, vancomycin was incorporated into the polymeric matrices to obtain scaffolds with antibacterial performance, and their drug release profile was assessed. The cytotoxic profile of the hydrogels was assessed by an MTS assay, using osteoblasts as model cells. The data obtained demonstrated that dextran-based hydrogels were successfully synthesized, with a drug release profile with an initial burst between 50 and 80% of the drug. The hydrogels possess fair biocompatibility. The swelling capacity showed that the stability of the samples and their degradation profile is compatible with the average time period required for bone regeneration (usually about one month) and have a favorable Young's modulus (200-300 kPa). The obtained hydrogels are well-suited for bone regeneration applications such as infections that occur during implantation or bone graft substitutes with antibiotics.
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Affiliation(s)
- Patrícia Alves
- University of Coimbra, CIEPQPF, Department of Chemical Engineering, Faculty of Sciences and Technology, Rua Sílvio Lima, 3030-790 Coimbra, Portugal; (A.F.S.); (M.J.M.); (I.J.C.); (P.F.)
| | - Ana Filipa Simão
- University of Coimbra, CIEPQPF, Department of Chemical Engineering, Faculty of Sciences and Technology, Rua Sílvio Lima, 3030-790 Coimbra, Portugal; (A.F.S.); (M.J.M.); (I.J.C.); (P.F.)
| | - Mariana F. P. Graça
- CICS-UBI, Health Sciences Research Centre, Faculty of Health Sciences, University of Beira Interior, 6200-506 Covilhã, Portugal;
| | - Marcos J. Mariz
- University of Coimbra, CIEPQPF, Department of Chemical Engineering, Faculty of Sciences and Technology, Rua Sílvio Lima, 3030-790 Coimbra, Portugal; (A.F.S.); (M.J.M.); (I.J.C.); (P.F.)
| | - Ilídio J. Correia
- University of Coimbra, CIEPQPF, Department of Chemical Engineering, Faculty of Sciences and Technology, Rua Sílvio Lima, 3030-790 Coimbra, Portugal; (A.F.S.); (M.J.M.); (I.J.C.); (P.F.)
- CICS-UBI, Health Sciences Research Centre, Faculty of Health Sciences, University of Beira Interior, 6200-506 Covilhã, Portugal;
| | - Paula Ferreira
- University of Coimbra, CIEPQPF, Department of Chemical Engineering, Faculty of Sciences and Technology, Rua Sílvio Lima, 3030-790 Coimbra, Portugal; (A.F.S.); (M.J.M.); (I.J.C.); (P.F.)
- Applied Research Institute, Polytechnic Institute of Coimbra, Rua da Misericórdia, Lagar dos Cortiços—S. Martinho do Bispo, 3045-093 Coimbra, Portugal
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2
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Ding Q, Zhang S, Liu X, Zhao Y, Yang J, Chai G, Wang N, Ma S, Liu W, Ding C. Hydrogel Tissue Bioengineered Scaffolds in Bone Repair: A Review. Molecules 2023; 28:7039. [PMID: 37894518 PMCID: PMC10609504 DOI: 10.3390/molecules28207039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 09/27/2023] [Accepted: 10/09/2023] [Indexed: 10/29/2023] Open
Abstract
Large bone defects due to trauma, infections, and tumors are difficult to heal spontaneously by the body's repair mechanisms and have become a major hindrance to people's daily lives and economic development. However, autologous and allogeneic bone grafts, with their lack of donors, more invasive surgery, immune rejection, and potential viral transmission, hinder the development of bone repair. Hydrogel tissue bioengineered scaffolds have gained widespread attention in the field of bone repair due to their good biocompatibility and three-dimensional network structure that facilitates cell adhesion and proliferation. In addition, loading natural products with nanoparticles and incorporating them into hydrogel tissue bioengineered scaffolds is one of the most effective strategies to promote bone repair due to the good bioactivity and limitations of natural products. Therefore, this paper presents a brief review of the application of hydrogels with different gel-forming properties, hydrogels with different matrices, and nanoparticle-loaded natural products loaded and incorporated into hydrogels for bone defect repair in recent years.
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Affiliation(s)
- Qiteng Ding
- College of Traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China; (Q.D.); (S.Z.); (J.Y.); (S.M.)
| | - Shuai Zhang
- College of Traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China; (Q.D.); (S.Z.); (J.Y.); (S.M.)
| | - Xinglong Liu
- College of Traditional Chinese Medicine, Jilin Agriculture Science and Technology College, Jilin 132101, China;
| | - Yingchun Zhao
- Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250117, China;
| | - Jiali Yang
- College of Traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China; (Q.D.); (S.Z.); (J.Y.); (S.M.)
| | - Guodong Chai
- College of Resources and Environment, Jilin Agricultural University, Changchun 130118, China; (G.C.); (N.W.)
| | - Ning Wang
- College of Resources and Environment, Jilin Agricultural University, Changchun 130118, China; (G.C.); (N.W.)
| | - Shuang Ma
- College of Traditional Chinese Medicine, Jilin Agricultural University, Changchun 130118, China; (Q.D.); (S.Z.); (J.Y.); (S.M.)
| | - Wencong Liu
- School of Food and Pharmaceutical Engineering, Wuzhou University, Wuzhou 543002, China
| | - Chuanbo Ding
- College of Traditional Chinese Medicine, Jilin Agriculture Science and Technology College, Jilin 132101, China;
- Scientific and Technological Innovation Center of Health Products and Medical Materials with Characteristic Resources of Jilin Province, Changchun 130118, China
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3
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Dellali M, Iurciuc (Tincu) CE, Savin CL, Spahis N, Djennad M, Popa M. Hydrogel Films Based on Chitosan and Oxidized Carboxymethylcellulose Optimized for the Controlled Release of Curcumin with Applications in Treating Dermatological Conditions. Molecules 2021; 26:2185. [PMID: 33920154 PMCID: PMC8069243 DOI: 10.3390/molecules26082185] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 03/26/2021] [Accepted: 04/06/2021] [Indexed: 01/27/2023] Open
Abstract
Cross-linked chitosan (CS) films with aldehyde groups obtained by oxidation of carboxymethyl cellulose (CMC) with NaIO4 were prepared using different molar ratios between the CHO groups from oxidized carboxymethyl cellulose (CMCOx) and NH2 groups from CS (from 0.25:1 to 2:1). Fourier-transform infrared (FTIR) and nuclear magnetic resonance (NMR) spectroscopy demonstrated the aldehyde groups' presence in the CMCOx. The maximum oxidation degree was 22.9%. In the hydrogel, the amino groups' conversion index value increased when the -CHO/-NH2 molar ratio, cross-linking temperature, and time increased, while the swelling degree values decreased. The hydrogel films were characterized by scanning electron microscopy (SEM) and FTIR analysis. The curcumin encapsulation efficiency decreases from 56.74% to 16.88% when the cross-linking degree increases. The immobilized curcumin release efficiency (REf%) and skin membrane permeability were evaluated in vitro in two different pH solutions using a Franz diffusion cell, and it was found to decrease when the molar ratio -CH=O/NH2 increases. The curcumin REf% in the receptor compartment was higher at pH = 7.4 (18%- for the sample with a molar ratio of 0.25:1) than at pH = 5.5 (16.5%). The curcumin absorption in the skin membrane at pH = 5.5 (47%) was more intense than at pH = 7.4 (8.6%). The curcumin-loaded films' antioxidant activity was improved due to the CS presence.
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Affiliation(s)
- Mohamed Dellali
- Laboratory of Structure, Elaboration, and Application of Molecular Materials, Abdelhamid Ibn Badis University of Mostaganem, Mostaganem 27000, Algeria; (M.D.); (M.D.)
- Faculty of Technology, Hassiba Benbouali University of Chlef, BP 151, Chlef 02000, Algeria;
- Department of Natural and Synthetic Polymers, Gheorghe Asachi Technical University of Iasi, Mangeron Blvd. no. 73, 700050 Iasi, Romania;
| | - Camelia Elena Iurciuc (Tincu)
- Department of Natural and Synthetic Polymers, Gheorghe Asachi Technical University of Iasi, Mangeron Blvd. no. 73, 700050 Iasi, Romania;
- Department of Pharmaceutical Technology, Faculty of Pharmacy, “Grigore T. Popa” University of Medicine and Pharmacy, University Street, no. 16, 700115 Iaşi, Romania
| | - Corina Lenuța Savin
- Department of Natural and Synthetic Polymers, Gheorghe Asachi Technical University of Iasi, Mangeron Blvd. no. 73, 700050 Iasi, Romania;
| | - Nawel Spahis
- Faculty of Technology, Hassiba Benbouali University of Chlef, BP 151, Chlef 02000, Algeria;
| | - M’hamed Djennad
- Laboratory of Structure, Elaboration, and Application of Molecular Materials, Abdelhamid Ibn Badis University of Mostaganem, Mostaganem 27000, Algeria; (M.D.); (M.D.)
| | - Marcel Popa
- Department of Natural and Synthetic Polymers, Gheorghe Asachi Technical University of Iasi, Mangeron Blvd. no. 73, 700050 Iasi, Romania;
- Academy of Romanian Scientists, Splaiul Independentei Street, No 54, 050094 Bucharest, Romania
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4
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Ong J, Zhao J, Justin AW, Markaki AE. Albumin-based hydrogels for regenerative engineering and cell transplantation. Biotechnol Bioeng 2019; 116:3457-3468. [PMID: 31520415 PMCID: PMC6899591 DOI: 10.1002/bit.27167] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 09/08/2019] [Accepted: 09/12/2019] [Indexed: 01/04/2023]
Abstract
Albumin, the most abundant plasma protein in mammals, is a versatile and easily obtainable biomaterial. It is pH and temperature responsive, dissolvable in high concentrations and gels readily in defined conditions. This versatility, together with its inexpensiveness and biocompatibility, makes albumin an attractive biomaterial for biomedical research and therapeutics. So far, clinical research in albumin has centered mainly on its use as a carrier molecule or nanoparticle to improve drug pharmacokinetics and delivery to target sites. In contrast, research in albumin-based hydrogels is less established albeit growing in interest over recent years. In this minireview, we report current literature and critically discuss the synthesis, mechanical properties, biological effects and uses, biodegradability and cost of albumin hydrogels as a xeno-free, customizable, and transplantable construct for tissue engineering and regenerative medicine.
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Affiliation(s)
- John Ong
- Department of Engineering, University of Cambridge, Cambridge, UK.,Gastroenterology Specialty Training Program, East of England Deanery, Cambridge, UK
| | - Junzhe Zhao
- Department of Engineering, University of Cambridge, Cambridge, UK
| | | | - Athina E Markaki
- Department of Engineering, University of Cambridge, Cambridge, UK
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5
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Dalton E, Chai Q, Shaw MW, McKenzie TJ, Mullins ES, Ayres N. Hydrogel‐coated polyurethane/urea shape memory polymer foams. ACTA ACUST UNITED AC 2019. [DOI: 10.1002/pola.29398] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Emily Dalton
- The Department of Chemistry The University of Cincinnati Cincinnati Ohio 45221
| | - Qinyuan Chai
- The Department of Chemistry The University of Cincinnati Cincinnati Ohio 45221
| | - Molly W. Shaw
- Cancer and Blood Diseases Institute, Cincinnati Children's Hospital Medical Center Cincinnati Ohio 45229
| | - Tucker J. McKenzie
- The Department of Chemistry The University of Cincinnati Cincinnati Ohio 45221
| | - Eric S. Mullins
- Cancer and Blood Diseases Institute, Cincinnati Children's Hospital Medical Center Cincinnati Ohio 45229
| | - Neil Ayres
- The Department of Chemistry The University of Cincinnati Cincinnati Ohio 45221
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6
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Kloypan C, Suwannasom N, Chaiwaree S, Prapan A, Smuda K, Baisaeng N, Pruß A, Georgieva R, Bäumler H. In-vitro haemocompatibility of dextran-protein submicron particles. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2019; 47:241-249. [PMID: 30663396 DOI: 10.1080/21691401.2018.1548476] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Blood compatibility is a key requirement to fulfil for intravenous administration of drug and oxygen carrier system. Recently, we published the fabrication of oxidised-dextran (Odex)-crosslinked protein particles by one-pot formulation. In the current study we investigate the haemocompatibility of these Odex - particles including albumin particles (Odex-APs) and haemoglobin particles (Odex-HbMPs). Odex-APs and Odex-HbMPs have a submicron size ranged 800-1000 nm with peanut-like shape and a negative surface charge. In vitro haemocompatibility assays included haemolysis test, indirect phagocytosis test and platelet activation test in human blood. Odex-APs and Odex-HbMPs did not provoke any undesirable effects on the blood cells. Firstly, the ratio of haemolysis after contacted with Odex-crosslinked protein particles were less than 5% and therefore the particles may be considered non-haemolytic. Secondly, the incubation of leukocyte with Odex-APs/HbMPs did not influence the phagocytosis of leukocyte. We conclude that our particles are not recognized by monocytes or granulocytes. Finally, exposure of Odex-APs/HbMPs to platelets did not cause an activation of platelets. Additionally, Odex-HbMP/AP did not enhance or attenuate agonist-induced platelet activation. We conclude that Odex-crosslinked protein particles exhibit a very good haemocompatibility and represent highly promising carriers for drugs or oxygen.
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Affiliation(s)
- Chiraphat Kloypan
- a Institute of Transfusion Medicine , Charité-Universitätsmedizin Berlin , Berlin , Germany.,b Division of Clinical Immunology and Transfusion Sciences, School of Allied Health Sciences , University of Phayao , Phayao , Thailand
| | - Nittiya Suwannasom
- a Institute of Transfusion Medicine , Charité-Universitätsmedizin Berlin , Berlin , Germany.,c Division of Biochemistry and Nutrition, School of Medical Sciences , University of Phayao , Phayao , Thailand
| | - Saranya Chaiwaree
- d Department of Radiological Technology, Faculty of Allied Health Sciences , Naresuan University , Phitsanulok , Thailand
| | - Ausanai Prapan
- e Department of Pharmaceutical Technology, Faculty of Pharmacy , Payap University , Chiang Mai , Thailand
| | - Kathrin Smuda
- a Institute of Transfusion Medicine , Charité-Universitätsmedizin Berlin , Berlin , Germany
| | - Nuttakorn Baisaeng
- f Division of Pharmaceutical Sciences, School of Pharmaceutical Sciences , University of Phayao , Phayao , Thailand
| | - Axel Pruß
- a Institute of Transfusion Medicine , Charité-Universitätsmedizin Berlin , Berlin , Germany
| | - Radostina Georgieva
- a Institute of Transfusion Medicine , Charité-Universitätsmedizin Berlin , Berlin , Germany.,g Department of Medical Physics, Biophysics and Radiology, Faculty of Medicine , Trakia University , Stara Zagora , Bulgaria
| | - Hans Bäumler
- a Institute of Transfusion Medicine , Charité-Universitätsmedizin Berlin , Berlin , Germany
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7
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Kloypan C, Prapan A, Suwannasom N, Chaiwaree S, Kaewprayoon W, Steffen A, Xiong Y, Baisaeng N, Georgieva R, Bäumler H. Improved oxygen storage capacity of haemoglobin submicron particles by one-pot formulation. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2018; 46:S964-S972. [DOI: 10.1080/21691401.2018.1521819] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Chiraphat Kloypan
- Institute of Transfusion Medicine, Charité – Universitätsmedizin Berlin, Berlin, Germany
- Division of Clinical Immunology and Transfusion Sciences, School of Allied Health Sciences, University of Phayao, Phayao, Thailand
| | - Ausanai Prapan
- Institute of Transfusion Medicine, Charité – Universitätsmedizin Berlin, Berlin, Germany
- Department of Radiological Technology, Naresuan University, Phitsanulok, Thailand
| | - Nittiya Suwannasom
- Institute of Transfusion Medicine, Charité – Universitätsmedizin Berlin, Berlin, Germany
- Division of Biochemistry and Nutrition, School of Medical Sciences, University of Phayao, Phayao, Thailand
| | - Saranya Chaiwaree
- Institute of Transfusion Medicine, Charité – Universitätsmedizin Berlin, Berlin, Germany
- Department of Pharmaceutical Technology, Payap University, Chiang Mai, Thailand
| | - Waraporn Kaewprayoon
- Institute of Transfusion Medicine, Charité – Universitätsmedizin Berlin, Berlin, Germany
- Department of Pharmaceutical Technology, Payap University, Chiang Mai, Thailand
| | - Axel Steffen
- Institute of Transfusion Medicine, Charité – Universitätsmedizin Berlin, Berlin, Germany
| | - Yu Xiong
- Institute of Transfusion Medicine, Charité – Universitätsmedizin Berlin, Berlin, Germany
| | - Nuttakorn Baisaeng
- Division of Pharmaceutical Sciences, School of Pharmaceutical Sciences, University of Phayao, Phayao, Thailand
| | - Radostina Georgieva
- Institute of Transfusion Medicine, Charité – Universitätsmedizin Berlin, Berlin, Germany
- Department of Medical Physics, Biophysics and Radiology, Trakia University, Stara Zagora, Bulgaria
| | - Hans Bäumler
- Institute of Transfusion Medicine, Charité – Universitätsmedizin Berlin, Berlin, Germany
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Atelocollagen-based Hydrogels Crosslinked with Oxidised Polysaccharides as Cell Encapsulation Matrix for Engineered Bioactive Stromal Tissue. Tissue Eng Regen Med 2017; 14:539-556. [PMID: 30603508 DOI: 10.1007/s13770-017-0063-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Revised: 06/01/2017] [Accepted: 06/05/2017] [Indexed: 02/08/2023] Open
Abstract
Tissue stroma is responsible for extracellular matrix (ECM) formation and secretion of factors that coordinate the behaviour of the surrounding cells through the microenvironment created. It's inability to spontaneously regenerate makes it a good candidate for research studies such as testing various tissue engineered products capable of replacing the stroma in order to assure normal tissue regeneration and function. In this study, a bioactive stroma was obtained considering two main components: 1) the artificial ECM formed using atelocollagen-oxidized polysaccharides hydrogels in which the polysaccharide compound (oxidised gellan or pullulan) has the role of crosslinker and 2) encapsulated stromal cells (dermal fibroblasts, ovarian theca-interstitial and granulosa cells). The cell-hosting ability of the hydrogels is demonstrated by a good diffusion of globular proteins (albumin) while the fibrillar morphology proves to be optimal for cell adhesion. These structural properties and cytocompatibility of the components maintain good cell viability and cell encapsulation for more than 12 days. Nevertheless, the results indicate some differences favouring the gellan crosslinked hydrogels. Ovarian stromal cells functionality was maintained as indicated by hormone secretion, confirming cell-cell signalling in encapsulated and co-culture conditions. In vivo implantation shows the regenerative potential of the cell-populated hydrogels as they are integrated into the natural tissue. The possibility of cryopreserving the hydrogel-cell system, while maintaining both cell viability and hydrogel structural integrity underlines the potential of these ready-to-use hydrogels as bioactive stroma for multipurpose tissue regeneration.
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Abstract
Dextran is widely exploited in medical products and as a component of drug-delivering nanoparticles (NPs). Here, we tested whether dextran can serve as the main substrate of NPs and form a stable backbone. We tested dextrans with several molecular masses under several synthesis conditions to optimize NP stability. The analysis of the obtained nanoparticles showed that dextran NPs that were synthesized from 70 kDa dextran with a 5% degree of oxidation of the polysaccharide chain and 50% substitution with dodecylamine formed a NP backbone composed of modified dextran subunits, the mean diameter of which in an aqueous environment was around 100 nm. Dextran NPs could be stored in a dry state and reassembled in water. Moreover, we found that different chemical moieties (e.g., drugs such as doxorubicin) can be attached to the dextran NPs via a pH-dependent bond that allows release of the drug with lowering pH. We conclude that dextran NPs are a promising nano drug carrier.
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Ritz U, Kögler P, Höfer I, Frank P, Klees S, Gebhard S, Brendel C, Kaufmann K, Hofmann A, Rommens PM, Jonas U. Photocrosslinkable polysaccharide hydrogel composites based on dextran or pullulan–amylose blends with cytokines for a human co-culture model of human osteoblasts and endothelial cells. J Mater Chem B 2016; 4:6552-6564. [DOI: 10.1039/c6tb00654j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Polysaccharide hyrogel composites demonstrate fundamental potential as biomaterials for bone regeneration in vitro.
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Affiliation(s)
- Ulrike Ritz
- University Medical Center of the Johannes Gutenberg University Mainz
- Department of Orthopaedics and Traumatology
- Biomatics Group Mainz
- Germany
| | - Peter Kögler
- Macromolecular Chemistry
- University of Siegen
- Germany
| | - Isabel Höfer
- Macromolecular Chemistry
- University of Siegen
- Germany
- TU Hamburg-Harburg
- Umwelttechnik und Energiewirtschaft
| | - Petra Frank
- Macromolecular Chemistry
- University of Siegen
- Germany
| | - Sven Klees
- Macromolecular Chemistry
- University of Siegen
- Germany
| | | | | | | | - Alexander Hofmann
- University Medical Center of the Johannes Gutenberg University Mainz
- Department of Orthopaedics and Traumatology
- Biomatics Group Mainz
- Germany
| | - Pol Maria Rommens
- University Medical Center of the Johannes Gutenberg University Mainz
- Department of Orthopaedics and Traumatology
- Biomatics Group Mainz
- Germany
| | - Ulrich Jonas
- Macromolecular Chemistry
- University of Siegen
- Germany
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11
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Dassie E, Arcidiacono D, Wasiak I, Damiano N, Dall'Olmo L, Giacometti C, Facchin S, Cassaro M, Guido E, De Lazzari F, Marin O, Ciach T, Fery-Forgues S, Alberti A, Battaglia G, Realdon S. Detection of fluorescent organic nanoparticles by confocal laser endomicroscopy in a rat model of Barrett's esophageal adenocarcinoma. Int J Nanomedicine 2015; 10:6811-23. [PMID: 26586943 PMCID: PMC4636176 DOI: 10.2147/ijn.s86640] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
For many years, novel strategies for cancer detection and treatment using nanoparticles (NPs) have been developed. Esophageal adenocarcinoma is the sixth leading cause of cancer-related deaths in Western countries, and despite recent advances in early detection and treatment, its prognosis is still very poor. This study investigated the use of fluorescent organic NPs as potential diagnostic tool in an experimental in vivo model of Barrett’s esophageal adenocarcinoma. NPs were made of modified polysaccharides loaded with [4-(dicyanomethylene)-2-methyl-6-(4-dimethylaminostyryl)-4H-pyran] (DCM), a well-known fluorescent dye. The NP periphery might or might not be decorated with ASYNYDA peptide that has an affinity for esophageal cancer cells. Non-operated and operated rats in which gastroesophageal reflux was surgically induced received both types of NPs (NP-DCM and NP-DCM-ASYNYDA) by intravenous route. Localization of mucosal NPs was assessed in vivo by confocal laser endomicroscopy, a technique which enables a “real time” and in situ visualization of the tissue at a cellular level. After injection of NP-DCM and NP-DCM-ASYNYDA, fluorescence was observed in rats affected by esophageal cancer, whereas no signal was observed in control non-operated rats, or in rats with simple esophagitis or Barrett’s esophagus mucosa. Fluorescence was observable in vivo 30 minutes after the administration of NPs. Interestingly, NP-DCM-ASYNYDA induced strong fluorescence intensity 24 hours after administration. These observations suggested that NPs could reach the tumor cells, likely by enhanced permeability and retention effect, and the peptide ASYNYDA gave them high specificity for esophageal cancer cells. Thus, the combination of NP platform and confocal laser endomicroscopy could play an important role for highlighting esophageal cancer conditions. This result supports the potential of this strategy as a targeted carrier for photoactive and bioactive molecules in esophageal cancer diagnosis and treatment.
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Affiliation(s)
- Elisa Dassie
- Department of Molecular Medicine, University of Padua, Padua, Italy ; Venetian Institute of Molecular Medicine, University of Padua, Padua, Italy
| | - Diletta Arcidiacono
- Venetian Institute of Molecular Medicine, University of Padua, Padua, Italy ; Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy
| | - Iga Wasiak
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Nunzio Damiano
- Department of Biomedical Sciences, University of Padua, Padua, Italy
| | - Luigi Dall'Olmo
- Department of Emergency Medicine, "Santi Giovanni e Paolo" Hospital, Venice, University of Padua, Italy
| | - Cinzia Giacometti
- Anatomic Pathology Unit, ULSS 15, Alta Padovana, Camposampiero, University of Padua, Italy
| | - Sonia Facchin
- Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy
| | - Mauro Cassaro
- Anatomic Pathology Unit, ULSS 15, Alta Padovana, Camposampiero, University of Padua, Italy
| | - Ennio Guido
- Gastroenterology Unit, Sant'Antonio Hospital, University of Padua, Italy
| | - Franca De Lazzari
- Gastroenterology Unit, Sant'Antonio Hospital, University of Padua, Italy
| | - Oriano Marin
- Interdepartmental Research Centre for Innovative Biotechnologies (CRIBI), University of Padua, Italy ; Proteomics Facility, Azienda Ospedaliera di Padova, Padua, Italy
| | - Tomasz Ciach
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Suzanne Fery-Forgues
- CNRS, ITAV-USR 3505, Toulouse, France ; Université de Toulouse, ITAV-USR 3505, Toulouse, France
| | - Alfredo Alberti
- Department of Molecular Medicine, University of Padua, Padua, Italy ; Venetian Institute of Molecular Medicine, University of Padua, Padua, Italy
| | - Giorgio Battaglia
- Endoscopy Unit, Veneto Institute of Oncology (IOV-IRCCS), Padua, Italy
| | - Stefano Realdon
- Endoscopy Unit, Veneto Institute of Oncology (IOV-IRCCS), Padua, Italy
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12
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Blumlein A, McManus JJ. Bigels formed via spinodal decomposition of unfolded protein. J Mater Chem B 2015; 3:3429-3435. [PMID: 32262225 DOI: 10.1039/c5tb00131e] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Bigels (or double network gels) are an emerging class of tuneable soft materials characterized by two discrete but interpenetrating gel networks in which both networks contribute to the physical and mechanical properties of the material. We describe, for the first time, the formation of a bigel network from two different proteins. By careful control of solution conditions, kinetics and specific protein chemistry the inter-species interactions in the two protein system are weak compared with the intra-protein attraction, which leads to bigel formation. The resulting protein bigel has an elastic modulus four times greater than the combined elastic moduli of the parent gels, has an elastic response over several deformation cycles and is both thermo- and chemo-responsive. These gels have the potential to be used as biomimetics in tissue culture, in drug delivery or for biomedical applications such as wound healing.
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Affiliation(s)
- Alice Blumlein
- Department of Chemistry, Maynooth University, Maynooth, Co. Kildare, Ireland.
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