1
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Yuan D, Qin L, Niu Z, Zhou F, Zhao M. Maintained particulate integrity of soy protein nanoparticles during gastrointestinal digestion via genipin crosslinking enhancing stability and bioavailability of curcumin. Int J Biol Macromol 2024; 274:133213. [PMID: 38889834 DOI: 10.1016/j.ijbiomac.2024.133213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 06/13/2024] [Accepted: 06/15/2024] [Indexed: 06/20/2024]
Abstract
Poor stability during gastrointestinal digestion is a major challenge for the applications of protein-based nanoparticles as oral delivery systems. In this work, genipin was used to crosslink the partially enzymatic hydrolyzed soy protein nanoparticles, aiming to improve their performance in gastrointestinal tract as delivery carrier. Results showed that the obtained genipin-crosslinked soy protein nanoparticles (GSPNPs) were still spherically monodisperse with a diameter around 60 nm. Encapsulation with GSPNPs significantly improved the solubility of curcumin (Cur) and its stability against UV light as well as long-term storage. Compared to those un-crosslinked nanoparticles, particles crosslinked by genipin had a more compact structure less sensitive to ionic effect and digestive enzymes, showing enhanced digestion stability. The well-maintained nanoparticulate structure of GSPNPs further contributed to the enhanced bioaccessibility and facilitated absorption by epithelial cells. Furthermore, in vivo experiment on rats showed that Cur encapsulated in GSPNPs exhibited a slowed down and sustained absorption manner with an 8.11-fold improvement in its bioavailability. These suggested that GSPNPs could be a promising nanocarrier to enhance the bioavailability of functional factors.
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Affiliation(s)
- Dan Yuan
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Guangdong Food Green Processing and Nutrition Regulation Technology Research Center, Guangzhou 510640, China
| | - Ling Qin
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Zhicheng Niu
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Guangdong Food Green Processing and Nutrition Regulation Technology Research Center, Guangzhou 510640, China
| | - Feibai Zhou
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Guangdong Food Green Processing and Nutrition Regulation Technology Research Center, Guangzhou 510640, China.
| | - Mouming Zhao
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Guangdong Food Green Processing and Nutrition Regulation Technology Research Center, Guangzhou 510640, China; Chaozhou Branch of Chemistry and Chemical Engineering Guangdong Laboratory, Chaozhou 521000, China.
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2
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Wang Q, Yan H, Zhang J, Tian X, Xiao J. Engineering a durable BDDE cross-linked collagen filler for skin rejuvenation. Biomed Mater 2024; 19:055021. [PMID: 39069835 DOI: 10.1088/1748-605x/ad6548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Accepted: 07/18/2024] [Indexed: 07/30/2024]
Abstract
Skin aging, characterized by reduced regeneration, chronic inflammation, and heightened skin cancer risk, poses a significant challenge. Collagen fillers have emerged as a potential solution for skin rejuvenation by stimulating collagen regeneration. However, their clinical efficacy is limited by inherent instability and vulnerability toin vivodegradation by collagenase. Chemical cross-linking presents a promising approach to enhance stability, but it carries risks such as cytotoxicity, calcification, and discoloration. Here, we introduce a highly durable 1,4-butanediol diglycidyl ether (BDDE) cross-linked collagen filler for skin rejuvenation. BDDE effectively cross-links collagen, resulting in fillers with exceptional mechanical strength and injectability. These fillers demonstrate favorable stability and durability, promoting proliferation, adhesion, and spreading of human foreskin fibroblast-1 cellsin vitro. In vivostudies confirm enhanced collagen regeneration without inducing calcification. BDDE cross-linked collagen fillers offer promising prospects for medical cosmetology and tissue regeneration.
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Affiliation(s)
- Qi Wang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China
- Gansu Engineering Research Center of Medical Collagen, Lanzhou 730000, People's Republic of China
| | - Huiyu Yan
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China
- Gansu Engineering Research Center of Medical Collagen, Lanzhou 730000, People's Republic of China
| | - Jingting Zhang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China
- Gansu Engineering Research Center of Medical Collagen, Lanzhou 730000, People's Republic of China
| | - Xinyu Tian
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China
- Gansu Engineering Research Center of Medical Collagen, Lanzhou 730000, People's Republic of China
| | - Jianxi Xiao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China
- Gansu Engineering Research Center of Medical Collagen, Lanzhou 730000, People's Republic of China
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3
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Vukajlovic D, Timmons R, Macesic S, Sanderson J, Xie F, Abdelghany TM, Smith E, Lau WM, Ng KW, Novakovic K. Mathematical modelling of genipin-bovine serum albumin interaction using fluorescence intensity measurements. Int J Biol Macromol 2024; 276:133850. [PMID: 39004259 DOI: 10.1016/j.ijbiomac.2024.133850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 07/10/2024] [Accepted: 07/11/2024] [Indexed: 07/16/2024]
Abstract
The interaction between genipin and a model protein bovine serum albumin (BSA), with and without the addition of acetic acid, has been studied experimentally and by modelling. The number of amino groups available to react was determined to be 5.6 % of the total number of amino acid building blocks on BSA. Fluorescence intensity was used to record the progress of the reaction over the 24 h, while the modelling study focused on capturing the kinetic profiles of the reaction. The experiments revealed a slow start to the BSA and genipin interaction, that subsequently accelerated in an S-shaped curve which the modelling study linked with the existence of the feedback cycle for both reactive amino groups and genipin. At BSA concentrations ≥30 mg/mL the reaction was accelerated in the presence of acid, while below 30 mg/mL the acidified conditions delayed the onset of the reaction. Contrary to the reaction mechanisms previously proposed, a degree of breakdown of the fluorescent links in the products formed was denoted both experimentally and in a modelling study. This indicated the reversibility of the processes forming fluorescent product/s and suggested feasibility of the successful release of the protein following prospective encapsulation within the genipin-crosslinked hydrogel structure.
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Affiliation(s)
- Djurdja Vukajlovic
- School of Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom
| | - Rory Timmons
- School of Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom
| | - Stevan Macesic
- University of Belgrade, Faculty of Physical Chemistry, Studentski trg 12-16, Belgrade, Serbia
| | - John Sanderson
- School of Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom
| | - Fengwei Xie
- School of Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom; Department of Chemical Engineering, University of Bath, Bath BA2 7AY, United Kingdom
| | - Tarek M Abdelghany
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Kasr El-Aini St., Cairo 11562, Egypt; Institute of Education in Healthcare and Medical Sciences, School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Foresthill, Aberdeen AB25 2ZD, United Kingdom; School of Biomedical, Nutritional and Sport Sciences, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, United Kingdom
| | - Emma Smith
- School of Pharmacy, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom
| | - Wing Man Lau
- School of Pharmacy, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom
| | - Keng Wooi Ng
- School of Pharmacy, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom
| | - Katarina Novakovic
- School of Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom.
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4
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González-Duque MI, Flórez AM, Torres MA, Fontanilla MR. Composite Zonal Scaffolds of Collagen I/II for Meniscus Regeneration. ACS Biomater Sci Eng 2024; 10:2426-2441. [PMID: 38549452 DOI: 10.1021/acsbiomaterials.3c01737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
The meniscus is divided into three zones according to its vascularity: an external vascularized red-red zone mainly comprising collagen I, a red-white interphase zone mainly comprising collagens I and II, and an internal white-white zone rich in collagen II. Known scaffolds used to treat meniscal injuries do not reflect the chemical composition of the vascular areas of the meniscus. Therefore, in this study, four composite zonal scaffolds (named A, B, C, and D) were developed and characterized; the developed scaffolds exhibited the main chemical components of the external (collagen I), interphase (collagens I/II), and internal (collagen II) zones of the meniscus. Noncomposite scaffolds were also produced (named E), which had the same shape as the composite scaffolds but were entirely made of collagen I. The composite zonal scaffolds were prepared using different concentrations of collagen I and the same concentration of collagen II and were either cross-linked with genipin or not cross-linked. Porous, biodegradable, and hydrophilic scaffolds with an expected chemical composition were obtained. Their pore size was smaller than the size reported for the meniscus substitutes; however, all scaffolds allowed the adhesion and proliferation of human adipose-derived stem cells (hADSCs) and were not cytotoxic. Data from enzymatic degradation and hADSC proliferation assays were considered for choosing the cross-linked composite scaffolds along with the collagen I scaffold and to test if composite zonal scaffolds seeded with hADSC and cultured with differentiation medium produced fibrocartilage-like tissue different from that formed in noncomposite scaffolds. After 21 days of culture, hADSCs seeded on composite scaffolds afforded an extracellular matrix with aggrecan, whereas hADSCs seeded on noncomposite collagen I scaffolds formed a matrix-like fibrocartilage without aggrecan.
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Affiliation(s)
- Martha Isabel González-Duque
- Tissue Engineering Group, Departmento de Farmacia, Facultad de Ciencias, Universidad Nacional de Colombia, Av. Carrera 30 # 45-10, Bogotá 111321, D.C., Colombia
| | - Adriana Matilde Flórez
- Tissue Engineering Group, Departmento de Farmacia, Facultad de Ciencias, Universidad Nacional de Colombia, Av. Carrera 30 # 45-10, Bogotá 111321, D.C., Colombia
| | - María Alejandra Torres
- Tissue Engineering Group, Departmento de Farmacia, Facultad de Ciencias, Universidad Nacional de Colombia, Av. Carrera 30 # 45-10, Bogotá 111321, D.C., Colombia
| | - Marta Raquel Fontanilla
- Tissue Engineering Group, Departmento de Farmacia, Facultad de Ciencias, Universidad Nacional de Colombia, Av. Carrera 30 # 45-10, Bogotá 111321, D.C., Colombia
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5
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Dai X, Yuan M, Yang Y, Dang M, Yang J, Shi J, Liu D, Li M, Yao H, Fei W. Dual cross-linked COL1/HAp bionic gradient scaffolds containing human amniotic mesenchymal stem cells promote rotator cuff tendon-bone interface healing. BIOMATERIALS ADVANCES 2024; 158:213799. [PMID: 38364326 DOI: 10.1016/j.bioadv.2024.213799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 01/17/2024] [Accepted: 02/08/2024] [Indexed: 02/18/2024]
Abstract
The tendon-bone interface heals through scar tissue, while the lack of a natural interface gradient structure and collagen fibre alignment leads to the occurrence of retearing. Therefore, the promotion of tendon healing has become the focus of regenerative medicine. The purpose of this study was to develop a gradient COL1/ hydroxyapatite (HAp) biomaterial loaded with human amniotic mesenchymal stem cells (hAMSCs). The performance of common cross-linking agents, Genipin, 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide/N-hydroxysuccinimide (EDC/NHS), and dual cross-linked materials were compared to select the best cross-linking mechanism to optimize the biological and mechanical properties of the scaffold. The optimal COL1/HAp-loaded with hAMSCs were implanted into the tendon-bone rotator cuff interfaces in rats and the effect on the tendon-bone healing was assessed by micro-CT, histological analysis, and biomechanical properties. The results showed that Genipin and EDC/NHS dual cross-linked COL1/HAp had good biological activity and mechanical properties and promoted the proliferation and differentiation of hAMSCs. Animal experiments showed that the group using a scaffold loaded with hAMSCs had excellent continuity and orientation of collagen fibers, increased fibrocartilage and bone formation, and significantly higher biomechanical functions than the control group at the interface at 12 weeks post operation. This study demonstrated that dual cross-linked gradient COL1/HAp-loaded hAMSCs could promote interface healing, thereby providing a feasible strategy for tendon-bone interface regeneration.
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Affiliation(s)
- Xiaomei Dai
- School of Nursing and School of Public Health, Yangzhou University, Yangzhou 225001, PR China; Department of Orthopedics and Sports Medicine, Northern Jiangsu People's Hospital, Affiliated to Yangzhou University, Yangzhou 225001, PR China
| | - Meijuan Yuan
- School of Nursing and School of Public Health, Yangzhou University, Yangzhou 225001, PR China; Department of Orthopedics and Sports Medicine, Northern Jiangsu People's Hospital, Affiliated to Yangzhou University, Yangzhou 225001, PR China
| | - Yuxia Yang
- Department of Orthopedics and Sports Medicine, Northern Jiangsu People's Hospital, Affiliated to Yangzhou University, Yangzhou 225001, PR China; Medical College, Yangzhou University, Yangzhou 225001, PR China
| | - Mengbo Dang
- Department of Orthopedics and Sports Medicine, Northern Jiangsu People's Hospital, Affiliated to Yangzhou University, Yangzhou 225001, PR China; Dalian Medical University, Dalian 116044, PR China
| | - Jian Yang
- Department of Orthopedics and Sports Medicine, Northern Jiangsu People's Hospital, Affiliated to Yangzhou University, Yangzhou 225001, PR China; Medical College, Yangzhou University, Yangzhou 225001, PR China
| | - Junli Shi
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225009, PR China
| | - Dianwei Liu
- Department of Orthopedics and Sports Medicine, Northern Jiangsu People's Hospital, Affiliated to Yangzhou University, Yangzhou 225001, PR China; Dalian Medical University, Dalian 116044, PR China
| | - Mingjun Li
- Department of Orthopedics and Sports Medicine, Northern Jiangsu People's Hospital, Affiliated to Yangzhou University, Yangzhou 225001, PR China; Dalian Medical University, Dalian 116044, PR China
| | - Hang Yao
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225009, PR China.
| | - Wenyong Fei
- Department of Orthopedics and Sports Medicine, Northern Jiangsu People's Hospital, Affiliated to Yangzhou University, Yangzhou 225001, PR China.
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6
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AlFatlawi Z, Huang M, Chau DYS, D'Aiuto F. Three dimensional (3D) gingival models in periodontal research: a systematic review. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2023; 34:58. [PMID: 37938480 PMCID: PMC10632299 DOI: 10.1007/s10856-023-06761-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 10/19/2023] [Indexed: 11/09/2023]
Abstract
The aim of this study is to systematically appraise the evidence on available full thickness 3D gingival and mucosal models (3D culture in scaffold base system) and their application in periodontal and peri-implant research. This study involved a systematic review of twenty-two studies obtained from searching from five electronic databases: MEDLINE-OVID, EMBASE, EBSCOhost, Web of Science Core Collection and LILACS, as well as a hand search of eligible articles up to September 2022. A total of 2338 studies were initially identified, after removal of duplicates (573), abstracts/title selection (1765), and full text screening (95), twenty-two studies were included, thirty-seven models were identified. Several cellular markers were reported by the studies included. The expression of keratinocytes differentiation markers (K4, K5, K10, K13, K14, K16, K17, K18, K19, involucrin, laminin5), proliferation marker (Ki67, CD90), and vimentin, Type I, II and IV collagen produced by fibroblasts were investigated in thirty models. No quantitative analyses were performed, and results of the review confirmed a substantial level of heterogeneity across experiments. In conclusion, there is currently insufficient evidence to conclude that the available 3D gingival and mucosal models can entirely recapitulate the human gingival tissue/mucosa and provide a useful research tool for periodontal and peri-implant research. This review also highlighted the lack of a standardized protocol to construct and characterize 3D gingival models. A new protocol is proposed for the characterization of in vitro gingival models for future research.
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Affiliation(s)
- Z AlFatlawi
- Periodontology Unit, UCL Eastman Dental Institute, 21 University Street, London, WC1E 6DE, UK
- Division of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, Royal Free Campus, Rowland Hill Street, London, NW3 2PF, UK
| | - M Huang
- Periodontology Unit, UCL Eastman Dental Institute, 21 University Street, London, WC1E 6DE, UK
| | - D Y S Chau
- Division of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, Royal Free Campus, Rowland Hill Street, London, NW3 2PF, UK.
| | - F D'Aiuto
- Periodontology Unit, UCL Eastman Dental Institute, 21 University Street, London, WC1E 6DE, UK
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7
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Chen Z, Liu X, You J, Tomaskovic-Crook E, Yue Z, Talaei A, Sutton G, Crook J, Wallace G. Electro-compacted collagen for corneal epithelial tissue engineering. J Biomed Mater Res A 2023; 111:1151-1160. [PMID: 36651651 DOI: 10.1002/jbm.a.37500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 12/15/2022] [Accepted: 01/02/2023] [Indexed: 01/19/2023]
Abstract
Bioengineered corneal substitutes offer a solution to the shortage of donor corneal tissue worldwide. As one of the major structural components of the cornea, collagen has shown great potential for tissue-engineered cornea substitutes. Herein, free-standing collagen membranes fabricated using electro-compaction were assessed in corneal bioengineering application by comparing them with nonelectro-compacted collagen (NECC). The well-organized and biomimetic fibril structure resulted in a significant improvement in mechanical properties. A 10-fold increase in tensile and compressive modulus was recorded when compared with NECC membranes. In addition to comparable transparency in the visible light range, the glucose permeability of the electro-compacted collagen (ECC) membrane is higher than that of the native human cornea. Human corneal epithelial cells adhere and proliferate well on the ECC membrane, with a large cell contact area observed. The as-described ECC has appropriate structural, topographic, mechanical, optical, glucose permeable, and cell support properties to provide a platform for a bioengineered cornea; including the outer corneal epithelium and potentially deeper corneal tissues.
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Affiliation(s)
- Zhi Chen
- ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, AIIM Facility, Innovation Campus, University of Wollongong, Fairy Meadow, New South Wales, Australia
| | - Xiao Liu
- ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, AIIM Facility, Innovation Campus, University of Wollongong, Fairy Meadow, New South Wales, Australia
| | - Jingjing You
- Lions New South Wales Eye Bank and New South Wales Bone Bank, New South Wales Organ and Tissue Donation Service, Sydney, New South Wales, Australia
| | - Eva Tomaskovic-Crook
- ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, AIIM Facility, Innovation Campus, University of Wollongong, Fairy Meadow, New South Wales, Australia
- Arto Hardy Family Biomedical Innovation Hub, Chris O'Brien Lifehouse, Camperdown, New South Wales, Australia
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
| | - Zhilian Yue
- ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, AIIM Facility, Innovation Campus, University of Wollongong, Fairy Meadow, New South Wales, Australia
| | - Alireza Talaei
- ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, AIIM Facility, Innovation Campus, University of Wollongong, Fairy Meadow, New South Wales, Australia
| | - Gerard Sutton
- Lions New South Wales Eye Bank and New South Wales Bone Bank, New South Wales Organ and Tissue Donation Service, Sydney, New South Wales, Australia
- Save Sight Institute, University of Sydney, Sydney, New South Wales, Australia
- Chatswood Clinic, Vision Eye Institute, Sydney, New South Wales, Australia
- Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia
| | - Jeremy Crook
- ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, AIIM Facility, Innovation Campus, University of Wollongong, Fairy Meadow, New South Wales, Australia
- Arto Hardy Family Biomedical Innovation Hub, Chris O'Brien Lifehouse, Camperdown, New South Wales, Australia
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
| | - Gordon Wallace
- ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, AIIM Facility, Innovation Campus, University of Wollongong, Fairy Meadow, New South Wales, Australia
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8
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Chen H, Tan X, Hu M, Xie J, Han X, Yu Y, Zhu H, Wang H, Zhang Y. Genipin-mediated subunit-subunit crosslinking of ferritin nanocages: Structure, properties, and its application for food bioactive compound sealing. Food Chem 2023; 411:135437. [PMID: 36701920 DOI: 10.1016/j.foodchem.2023.135437] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 12/12/2022] [Accepted: 01/05/2023] [Indexed: 01/09/2023]
Abstract
Ferritin proteins are promising nano-carriers for bioactive compound delivery. However, the disassembly properties under acidic/alkaline conditions pose risks of cargo leakage. Herein, genipin-mediated chemical crosslinking method was provided as an alternative and effective strategy to construct robust ferritin nanocarrier through controlled-intramolecular conjugation. As indicated by SDS-/Native- PAGE, the crosslinking degree gradually increased with incubating time prolonging. CD results showed that the cross-linking would decrease α-helix content from 78.4 % to 52.7 % upon 6 h incubation. However, TEM images showed that the genipin-modification has subtle influence on its shell-like structure. Remarkably, the cross-linking can be well controlled by intramolecular subunit-subunit conjugation rather than intermolecular conjugation, giving an excellent monodispersity. Importantly, the covalent cross-linking can tight neighboring subunits and inhibit its disassociation, finally inhibiting the leakage of encapsulated-cargos from ferritin cavity under acidic environments. Such findings suggested that the genipin-mediated cross-linking strategy can fabricate robust nano-carriers for bioactive compound delivery.
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Affiliation(s)
- Hai Chen
- College of Food Science, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chongqing 400715, China; State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Xiaoyi Tan
- College of Food Science & Nutritional Engineering, China Agricultural University, 14 Beijing 100083, China
| | - Mengji Hu
- College of Food Science, Southwest University, Chongqing 400715, China
| | - Jiang Xie
- College of Food Science, Southwest University, Chongqing 400715, China
| | - Xueer Han
- College of Food Science, Southwest University, Chongqing 400715, China
| | - Yong Yu
- College of Food Science, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chongqing 400715, China; State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Hankun Zhu
- College of Food Science, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chongqing 400715, China; State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Hongxia Wang
- College of Food Science, Southwest University, Chongqing 400715, China; Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chongqing 400715, China; State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
| | - Yuhao Zhang
- College of Food Science, Southwest University, Chongqing 400715, China; Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, Chongqing 400715, China; Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chongqing 400715, China; State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China.
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9
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Saldanha DJ, Cai A, Dorval Courchesne NM. The Evolving Role of Proteins in Wearable Sweat Biosensors. ACS Biomater Sci Eng 2023; 9:2020-2047. [PMID: 34491052 DOI: 10.1021/acsbiomaterials.1c00699] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Sweat is an increasingly popular biological medium for fitness monitoring and clinical diagnostics. It contains an abundance of biological information and is available continuously and noninvasively. Sweat-sensing devices often employ proteins in various capacities to create skin-friendly matrices that accurately extract valuable and time-sensitive information from sweat. Proteins were first used in sensors as biorecognition elements in the form of enzymes and antibodies, which are now being tuned to operate at ranges relevant for sweat. In addition, a range of structural proteins, sometimes assembled in conjunction with polymers, can provide flexible and compatible matrices for skin sensors. Other proteins also naturally possess a range of functionalities─as adhesives, charge conductors, fluorescence emitters, and power generators─that can make them useful components in wearable devices. Here, we examine the four main components of wearable sweat sensors─the biorecognition element, the transducer, the scaffold, and the adhesive─and the roles that proteins have played so far, or promise to play in the future, in each component. On a case-by-case basis, we analyze the performance characteristics of existing protein-based devices, their applicable ranges of detection, their transduction mechanism and their mechanical properties. Thereby, we review and compare proteins that can readily be used in sweat sensors and others that will require further efforts to overcome design, stability or scalability challenges. Incorporating proteins in one or multiple components of sweat sensors could lead to the development and deployment of tunable, greener, and safer biosourced devices.
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Affiliation(s)
- Dalia Jane Saldanha
- Department of Chemical Engineering, McGill University, Montréal, Québec, Canada H3A 0C5
| | - Anqi Cai
- Department of Chemical Engineering, McGill University, Montréal, Québec, Canada H3A 0C5
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10
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Abdelgalil R, Khattab SN, Ebrahim S, Elkhodairy KA, Teleb M, Bekhit AA, Sallam MA, Elzoghby AO. Engineered Sericin-Tagged Layered Double Hydroxides for Combined Delivery of Pemetrexed and ZnO Quantum Dots as Biocompatible Cancer Nanotheranostics. ACS OMEGA 2023; 8:5655-5671. [PMID: 36816638 PMCID: PMC9933221 DOI: 10.1021/acsomega.2c07128] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 01/20/2023] [Indexed: 05/25/2023]
Abstract
Despite extensive progress in the field of cancer nanotheranostics, clinical development of biocompatible theranostic nanomedicine remains a formidable challenge. Herein, we engineered biocompatible silk-sericin-tagged inorganic nanohybrids for efficient treatment and imaging of cancer cells. The developed nanocarriers are anticipated to overcome the premature release of the chemotherapeutic drug pemetrexed (PMX), enhance the colloidal stability of layered double hydroxides (LDHs), and maintain the luminescence properties of ZnO quantum dots (QDs). Materials and Methods: PMX-intercalated LDHs were modified with sericin and coupled to ZnO QDs for therapy and imaging of breast cancer cells. Results: The optimized nanomedicine demonstrated a sustained release profile of PMX, and high cytotoxicity against MDA-MB-231 cells compared to free PMX. In addition, high cellular uptake of the engineered nanocarriers into MDA-MB-231 breast cancer cells was accomplished. Conclusions: Conclusively, the LDH-sericin nanohybrids loaded with PMX and conjugated to ZnO QDs offered a promising cancer theranostic nanomedicine.
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Affiliation(s)
- Riham
M. Abdelgalil
- Department
of Industrial Pharmacy, Faculty of Pharmacy, Alexandria University, Alexandria 21521, Egypt
- Cancer
Nanotechnology Research Laboratory (CNRL), Faculty of Pharmacy, Alexandria University, Alexandria 21521, Egypt
| | - Sherine N. Khattab
- Chemistry
Department, Faculty of Science, Alexandria
University, Alexandria 21321, Egypt
| | - Shaker Ebrahim
- Department
of Materials Science, Institute of Graduate Studies and Research, Alexandria 21526, Egypt
| | - Kadria A. Elkhodairy
- Department
of Industrial Pharmacy, Faculty of Pharmacy, Alexandria University, Alexandria 21521, Egypt
- Cancer
Nanotechnology Research Laboratory (CNRL), Faculty of Pharmacy, Alexandria University, Alexandria 21521, Egypt
| | - Mohamed Teleb
- Cancer
Nanotechnology Research Laboratory (CNRL), Faculty of Pharmacy, Alexandria University, Alexandria 21521, Egypt
- Department
of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, Alexandria 21521, Egypt
| | - Adnan A. Bekhit
- Cancer
Nanotechnology Research Laboratory (CNRL), Faculty of Pharmacy, Alexandria University, Alexandria 21521, Egypt
- Department
of Pharmaceutical Chemistry, Faculty of Pharmacy, Alexandria University, Alexandria 21521, Egypt
- Pharmacy
Program, Allied Health Department, College of Health and Sport Sciences, University of Bahrain, Zallaq 32038, Kingdom of Bahrain
| | - Marwa A. Sallam
- Department
of Industrial Pharmacy, Faculty of Pharmacy, Alexandria University, Alexandria 21521, Egypt
| | - Ahmed O. Elzoghby
- Department
of Industrial Pharmacy, Faculty of Pharmacy, Alexandria University, Alexandria 21521, Egypt
- Cancer
Nanotechnology Research Laboratory (CNRL), Faculty of Pharmacy, Alexandria University, Alexandria 21521, Egypt
- Division
of Engineering in Medicine, Department of Medicine, Brigham and Women’s
Hospital, Harvard Medical School, Boston, Massachusetts 02115, United States
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11
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Furusawa K, Kawahana Y, Miyashita R. Construction of Engineered Muscle Tissue Consisting of Myotube Bundles in a Collagen Gel Matrix. Gels 2023; 9:gels9020141. [PMID: 36826311 PMCID: PMC9956229 DOI: 10.3390/gels9020141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 02/02/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023] Open
Abstract
Tissue engineering methods that aim to mimic the hierarchical structure of skeletal muscle tissue have been widely developed due to utilities in various fields of biology, including regenerative medicine, food technology, and soft robotics. Most methods have aimed to reproduce the microscopical morphology of skeletal muscles, such as the orientation of myotubes and the sarcomere structure, and there is still a need to develop a method to reproduce the macroscopical morphology. Therefore, in this study, we aim to establish a method to reproduce the macroscopic morphology of skeletal muscle by constructing an engineered muscle tissue (EMT) by culturing embryonic chicken myoblast-like cells that are unidirectionally aligned in collagen hydrogels with micro-channels (i.e., MCCG). Whole mount fluorescent imaging of the EMT showed that the myotubes were unidirectionally aligned and that they were bundled in the collagen gel matrix. The myotubes contracted in response to periodic electrostimulations with a frequency range of 0.5-2.0 Hz, but not at 5.0 Hz. Compression tests of the EMT showed that the EMT had anisotropic elasticity. In addition, by measuring the relaxation moduli of the EMTs, an anisotropy of relaxation strengths was observed. The observed anisotropies could be attributed to differences in maturation and connectivity of myotubes in the directions perpendicular and parallel to the long axis of the micro-channels of the MCCG.
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12
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Liu Y, Xing R, Li J, Yan X. Covalently triggered self-assembly of peptide-based nanodrugs for cancer theranostics. iScience 2022; 26:105789. [PMID: 36594020 PMCID: PMC9804138 DOI: 10.1016/j.isci.2022.105789] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Covalently triggered peptide self-assembly is achieved through sequential integration of spontaneous covalent reaction and noncovalent interactions, thus both enhancing the physiological stability and extending unexpected functionality of the resulting peptide-based assemblies, different from popular supramolecular peptide self-assembly merely associated with noncovalent interactions. This review summarizes the recent progress on the development of covalently triggered peptide self-assembly for cancer theranostics. Especially, we propose the fundamental design principle of covalently triggered peptide self-assembly for constructing a variety of peptide-based assemblies including nanoparticles, nanofibers, hollow nanospheres, and other nanoarchitectures. Subsequently, the discussion is anchored in an overview of representative covalently assembled peptide-based nanodrugs for the cancer theranostics. Finally, the challenges and perspectives on the clinical potential of the covalently assembled peptide-based nanodrugs are highlighted. This review will provide new insights into construction of peptide-based nanodrugs through combination of covalent reaction and noncovalent self-assembly and prompt their clinical applications in cancer diagnosis and therapeutics.
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Affiliation(s)
- Yamei Liu
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Ruirui Xing
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China,School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China,Corresponding author
| | - Junbai Li
- Beijing National Laboratory for Molecular Sciences, CAS Key Lab of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Xuehai Yan
- State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China,School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing 100049, China,Center for Mesoscience, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China,Corresponding author
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13
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Fukada K, Tajima T, Seyama M. Thermally Degradable Inductors with Water-Resistant Metal Leaf/Oleogel Wires and Gelatin/Chitosan Hydrogel Films. ACS APPLIED MATERIALS & INTERFACES 2022; 14:44697-44703. [PMID: 36095329 DOI: 10.1021/acsami.2c12380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Ingestible electronics monitor biometric information from outside the body. Making them with harmless or digestible materials will contribute to further reducing the burden on the patient's oral intake. Here, considering that the inductive part plays an important role in communications, we demonstrate a degradable inductor fabricated with harmless substances. Such a transient component must meet conflicting requirements for both operation and disassembly. Therefore, we integrated a substrate made of gelatin, a thermally degradable material, and a precision coil pattern made of edible gold or silver leaf. However, gelatin itself lost its initial shape easily due to quick sol-gel changes in physiological conditions. Thus, we managed the gelatin's thermal responsiveness by using a tangle of gelatin/chitosan gel networks and genipin, an organic cross-linking agent, and gained insights into the criteria for developing transient devices with thermo-degradability. In addition, to compensate for the lack of water resistance and low conductivity of thin metal foils, we propose a laminated structure with oleogel (beeswax/olive oil). LCR resonance circuits, by connecting a commercial capacitor to the coil, worked wirelessly in the megahertz band and gradually degraded in a warm-water environment. The presented organic electronics will contribute to the future development of transient wireless communications for implantable and ingestible medical devices or environmental sensors with natural and harmless ingredients.
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Affiliation(s)
- Kenta Fukada
- NTT Device Technology Laboratories, NTT Corporation, 3-1 Morinosato, Wakamiya, Atsugi, Kanagawa 243-0198, Japan
| | - Takuro Tajima
- NTT Device Technology Laboratories, NTT Corporation, 3-1 Morinosato, Wakamiya, Atsugi, Kanagawa 243-0198, Japan
| | - Michiko Seyama
- NTT Device Technology Laboratories, NTT Corporation, 3-1 Morinosato, Wakamiya, Atsugi, Kanagawa 243-0198, Japan
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14
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Koskinen Holm C, Qu C. Engineering a 3D In Vitro Model of Human Gingival Tissue Equivalent with Genipin/Cytochalasin D. Int J Mol Sci 2022; 23:ijms23137401. [PMID: 35806407 PMCID: PMC9266888 DOI: 10.3390/ijms23137401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 06/28/2022] [Accepted: 07/01/2022] [Indexed: 02/05/2023] Open
Abstract
Although three-dimensional (3D) co-culture of gingival keratinocytes and fibroblasts-populated collagen gel can mimic 3D structure of in vivo tissue, the uncontrolled contraction of collagen gel restricts its application in clinical and experimental practices. We here established a stable 3D gingival tissue equivalent (GTE) using hTERT-immortalized gingival fibroblasts (hGFBs)-populated collagen gel directly crosslinked with genipin/cytochalasin D and seeding hTERT-immortalized gingival keratinocytes (TIGKs) on the upper surface for a 2-week air–liquid interface co-culture. MTT assay was used to measure the cell viability of GTEs. GTE size was monitored following culture period, and the contraction was analyzed. Immunohistochemical assay was used to analyze GTE structure. qRT-PCR was conducted to examine the mRNA expression of keratinocyte-specific genes. Fifty µM genipin (G50) or combination (G + C) of G50 and 100 nM cytochalasin D significantly inhibited GTE contraction. Additionally, a higher cell viability appeared in GTEs crosslinked with G50 or G + C. GTEs crosslinked with genipin/cytochalasin D showed a distinct multilayered stratified epithelium that expressed keratinocyte-specific genes similar to native gingiva. Collagen directly crosslinked with G50 or G + C significantly reduced GTE contraction without damaging the epithelium. In summary, the TIGKs and hGFBs can successfully form organotypic multilayered cultures, which can be a valuable tool in the research regarding periodontal disease as well as oral mucosa disease. We conclude that genipin is a promising crosslinker with the ability to reduce collagen contraction while maintaining normal cell function in collagen-based oral tissue engineering.
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Affiliation(s)
- Cecilia Koskinen Holm
- Department of Odontology, Umeå University, 90185 Umeå, Sweden
- Wallenberg Center for Molecular Medicine, Umeå University, 90187 Umeå, Sweden
- Correspondence: (C.K.H.); (C.Q.)
| | - Chengjuan Qu
- Department of Odontology, Umeå University, 90185 Umeå, Sweden
- Wallenberg Center for Molecular Medicine, Umeå University, 90187 Umeå, Sweden
- Correspondence: (C.K.H.); (C.Q.)
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15
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Yakimov BP, Vlasova II, Efremov YM, Maksimov EG, Shirshin EA, Kagan VE, Timashev PS. Detection of HOCl-driven degradation of the pericardium scaffolds by label-free multiphoton fluorescence lifetime imaging. Sci Rep 2022; 12:10329. [PMID: 35725581 PMCID: PMC9209456 DOI: 10.1038/s41598-022-14138-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 05/17/2022] [Indexed: 11/24/2022] Open
Abstract
Artificial biomaterials can significantly increase the rate of tissue regeneration. However, implantation of scaffolds leads not only to accelerated tissue healing but also to an immune response of the organism, which results in the degradation of the biomaterial. The synergy of the immune response and scaffold degradation processes largely determines the efficiency of tissue regeneration. Still, methods suitable for fast, accurate and non-invasive characterization of the degradation degree of biomaterial are highly demandable. Here we show the possibility of monitoring the degradation of decellularized bovine pericardium scaffolds under conditions mimicking the immune response and oxidation processes using multiphoton tomography combined with fluorescence lifetime imaging (MPT-FLIM). We found that the fluorescence lifetimes of genipin-induced cross-links in collagen and oxidation products of collagen are prominent markers of oxidative degradation of scaffolds. This was verified in model experiments, where the oxidation was induced with hypochlorous acid or by exposure to activated neutrophils. The fluorescence decay parameters also correlated with the changes of micromechanical properties of the scaffolds as assessed using atomic force microscopy (AFM). Our results suggest that FLIM can be used for quantitative assessments of the properties and degradation of the scaffolds essential for the wound healing processes in vivo.
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Affiliation(s)
- B P Yakimov
- World-Class Research Center "Digital Biodesign and Personalized Healthcare", Sechenov First Moscow State Medical University, Trubetskaya 8, Moscow, Russia, 119048.,Faculty of Physics, M.V. Lomonosov Moscow State University, 1-2 Leninskie Gory, Moscow, Russia, 119991
| | - I I Vlasova
- World-Class Research Center "Digital Biodesign and Personalized Healthcare", Sechenov First Moscow State Medical University, Trubetskaya 8, Moscow, Russia, 119048.,Department of Advanced Biomaterials, Institute for Regenerative Medicine, Sechenov First Moscow State Medical University, Trubetskaya 8, Moscow, Russia, 119048
| | - Y M Efremov
- World-Class Research Center "Digital Biodesign and Personalized Healthcare", Sechenov First Moscow State Medical University, Trubetskaya 8, Moscow, Russia, 119048.,Department of Advanced Biomaterials, Institute for Regenerative Medicine, Sechenov First Moscow State Medical University, Trubetskaya 8, Moscow, Russia, 119048
| | - E G Maksimov
- Faculty of Biology, M.V. Lomonosov Moscow State University, 1-12 Leninskie Gory, Moscow, Russia, 119991
| | - E A Shirshin
- World-Class Research Center "Digital Biodesign and Personalized Healthcare", Sechenov First Moscow State Medical University, Trubetskaya 8, Moscow, Russia, 119048. .,Faculty of Physics, M.V. Lomonosov Moscow State University, 1-2 Leninskie Gory, Moscow, Russia, 119991.
| | - V E Kagan
- Department of Advanced Biomaterials, Institute for Regenerative Medicine, Sechenov First Moscow State Medical University, Trubetskaya 8, Moscow, Russia, 119048.,Center for Free Radical and Antioxidant Health, Department of Environmental and Occupational Health, University of Pittsburgh, Pittsburgh, PA, 15261, USA
| | - P S Timashev
- World-Class Research Center "Digital Biodesign and Personalized Healthcare", Sechenov First Moscow State Medical University, Trubetskaya 8, Moscow, Russia, 119048. .,Department of Advanced Biomaterials, Institute for Regenerative Medicine, Sechenov First Moscow State Medical University, Trubetskaya 8, Moscow, Russia, 119048. .,Faculty of Chemistry, M.V. Lomonosov Moscow State University, 1-3 Leninskie Gory, Moscow, Russia, 119991.
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16
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Sharma K, Kaur M, Rattan G, Kaushik A. Effective biocatalyst developed via genipin mediated acetylcholinesterase immobilization on rice straw derived cellulose nanofibers for detection and bioremediation of organophosphorus pesticide. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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17
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Kim S, Lee H, Kim JA, Park TH. Prevention of collagen hydrogel contraction using polydopamine-coating and alginate outer shell increases cell contractile force. BIOMATERIALS ADVANCES 2022; 136:212780. [PMID: 35929298 DOI: 10.1016/j.bioadv.2022.212780] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 03/07/2022] [Accepted: 03/25/2022] [Indexed: 06/15/2023]
Abstract
Collagen is the most abundant protein in the extracellular matrix of mammals and has a great effect on various cell behaviors including adhesion, differentiation, and migration. However, it is difficult to utilize collagen gel as a physical scaffold in vitro because of its severe contraction. Decrease in the overall hydrogel volume induces changes in cell distribution, and mass transfer within the gel. Uncontrolled mechanical and physiological factors in the fibrous matrix result in uncontrolled cell behaviors in the surrounding cells. In this study, two strategies were used to minimize the contraction of collagen gel. A disk-shaped frame made of polydopamine-coated polydimethylsiloxane (PDMS) prevented horizontal contraction at the edge of the hydrogel. The sequentially cross-linked collagen gel with alginate outer shell (CA-shell) structure inhibited the vertical gel contraction. The combined method synergistically prevented the hydrogel from shrinkage in long-term 3D cell culture. We observed the shift in balance of differentiation from adipogenesis to osteogenesis in mesenchymal stem cells under the environment where gel contraction was prevented, and confirmed that this phenomenon is closely associated with the mechanotransduction based on Yes-associated protein (YAP) localization. Development of this contraction inhibition platform made it possible to investigate the influence of regulation of cellular microenvironments. The physical properties of the hydrogel fabricated in this study were similar to that of pure collagen gel but completely changed the cell behavior within the gel by inhibition of gel contraction. The platform can be used to broaden our understanding of the fundamental mechanism underlying cell-matrix interactions and reproduce extracellular matrix in vivo.
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Affiliation(s)
- Seulha Kim
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea.
| | - Haein Lee
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea.
| | - Jeong Ah Kim
- Center for Scientific Instrumentation, Korea Basic Science Institute, Cheongju, Chungbuk 28119, Republic of Korea.
| | - Tai Hyun Park
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea; Interdisciplinary Program in Bioengineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea; BioMAX/N-Bio Institute, Institute of BioEngineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea.
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18
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Widespread mesenteric phlebosclerosis presenting as intestinal obstruction due to stenosis of the right-sided colon. Clin J Gastroenterol 2022; 15:717-721. [PMID: 35489002 DOI: 10.1007/s12328-022-01637-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 04/16/2022] [Indexed: 02/07/2023]
Abstract
Mesenteric phlebosclerosis is a rare form of intestinal ischemia characterized by thickening of the right-sided colon and calcification of the mesenteric vein. We describe the case of a 58-year-old woman admitted to our hospital because of abdominal pain and distension. An abdominal computed tomography study revealed remarkable dilatation and fluid collection of the small intestine compatible with intestinal obstruction, which was considered to be the result of stenosis of the ascending colon. The thickened wall of the cecum and ascending colon was associated with calcification of the colonic wall and mesenteric veins. Colonoscopy showed dark purple discoloration of the edematous mucosa from the splenic flexure through the hepatic flexure, at which point the colonoscope could not be advanced further because of stenosis of the ascending colon. Over 10 years previously, the patient had taken an herbal medicine containing gardenia fruit, which can cause mesenteric phlebosclerosis. An extensive colonic resection was performed after intestinal decompression. This case highlights extensive mesenteric phlebosclerosis causing intestinal obstruction from the cecum through the proximal portion of the sigmoid colon, which was treated with extensive colonic resection.
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19
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Mechanically Tunable Extracellular Matrix of Genipin Crosslinked Collagen and Its Effect on Endothelial Function. APPLIED SCIENCES-BASEL 2022; 12:2401. [PMID: 36713025 PMCID: PMC9881191 DOI: 10.3390/app12052401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Mechanical rigidity of a matrix, to which cells adhere, plays a significant role in regulating phenotypic cellular behaviors such as spreading and junction formation because vascular cells sense and respond to changes in their mechanical environment. Controlling mechanical properties of extracellular matrix by using a crosslinker is important for cell and tissue mechanobiology. In this paper, we explored genipin, a natural plant extract, to crosslink collagen-I in order to enhance mechanical properties with low cytotoxicity. We characterized the effects of genipin concentration on the mechanical properties, color change, degradation, structure, cell viability, and endothelial function such as transendothelial electrical resistance (TEER). Through the analysis of both material properties and endothelial response, it was found that genipin-based glycation caused an increase in viscoelastic moduli in collagen hydrogels, as well as increased fiber density in their structural morphology. Endothelial cells were found to form better barriers, express higher levels of tight junction proteins, and exhibit better adhesion on stiffer matrices.
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20
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Shaik TA, Baria E, Wang X, Korinth F, Lagarto JL, Höppener C, Pavone FS, Deckert V, Popp J, Cicchi R, Krafft C. Structural and Biochemical Changes in Pericardium upon Genipin Cross-Linking Investigated Using Nondestructive and Label-Free Imaging Techniques. Anal Chem 2022; 94:1575-1584. [PMID: 35015512 DOI: 10.1021/acs.analchem.1c03348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Tissue cross-linking represents an important and often used technique to enhance the mechanical properties of biomaterials. For the first time, we investigated biochemical and structural properties of genipin (GE) cross-linked equine pericardium (EP) using optical imaging techniques in tandem with quantitative atomic force microscopy (AFM). EP was cross-linked with GE at 37 °C, and its biochemical and biomechanical properties were observed at various time points up to 24 h. GE cross-linked EP was monitored by the normalized ratio between its second-harmonic generation (SHG) and two-photon autofluorescence emissions and remained unchanged for untreated EP; however, a decreasing ratio due to depleted SHG and elevated autofluorescence and a fluorescence band at 625 nm were found for GE cross-linked EP. The mean autofluorescence lifetime of GE cross-linked EP also decreased. The biochemical signature of GE cross-linker and shift in collagen bands were detected and quantified using shifted excitation Raman difference spectroscopy as an innovative approach for tackling artifacts with high fluorescence backgrounds. AFM images indicated a higher and increasing Young's modulus correlated with cross-linking, as well as collagen structural changes in GE cross-linked EP, qualitatively explaining the observed decrease in the second-harmonic signal. In conclusion, we obtained detailed information about the biochemical, structural, and biomechanical effects of GE cross-linked EP using a unique combination of optical and force microscopy techniques in a nondestructive and label-free manner.
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Affiliation(s)
- Tanveer Ahmed Shaik
- Leibniz Institute of Photonic Technology and Member of Leibniz Research Alliance "Health Technologies", Albert-Einstein-Strasse 9, 07745 Jena, Germany
| | - Enrico Baria
- National Institute of Optics, National Research Council (CNR-INO), Largo E. Fermi 6, 50125 Florence, Italy.,European Laboratory for Non-Linear Spectroscopy (LENS), University of Florence, Via Nello Carrara 1, 50019 Sesto Fiorentino, Italy
| | - Xinyue Wang
- Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich-Schiller-University, Helmholtzweg 4, 07743 Jena, Germany
| | - Florian Korinth
- Leibniz Institute of Photonic Technology and Member of Leibniz Research Alliance "Health Technologies", Albert-Einstein-Strasse 9, 07745 Jena, Germany
| | - João L Lagarto
- National Institute of Optics, National Research Council (CNR-INO), Largo E. Fermi 6, 50125 Florence, Italy.,European Laboratory for Non-Linear Spectroscopy (LENS), University of Florence, Via Nello Carrara 1, 50019 Sesto Fiorentino, Italy
| | - Christiane Höppener
- Leibniz Institute of Photonic Technology and Member of Leibniz Research Alliance "Health Technologies", Albert-Einstein-Strasse 9, 07745 Jena, Germany.,Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich-Schiller-University, Helmholtzweg 4, 07743 Jena, Germany
| | - Francesco S Pavone
- National Institute of Optics, National Research Council (CNR-INO), Largo E. Fermi 6, 50125 Florence, Italy.,European Laboratory for Non-Linear Spectroscopy (LENS), University of Florence, Via Nello Carrara 1, 50019 Sesto Fiorentino, Italy
| | - Volker Deckert
- Leibniz Institute of Photonic Technology and Member of Leibniz Research Alliance "Health Technologies", Albert-Einstein-Strasse 9, 07745 Jena, Germany.,Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich-Schiller-University, Helmholtzweg 4, 07743 Jena, Germany
| | - Jürgen Popp
- Leibniz Institute of Photonic Technology and Member of Leibniz Research Alliance "Health Technologies", Albert-Einstein-Strasse 9, 07745 Jena, Germany.,Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich-Schiller-University, Helmholtzweg 4, 07743 Jena, Germany
| | - Riccardo Cicchi
- National Institute of Optics, National Research Council (CNR-INO), Largo E. Fermi 6, 50125 Florence, Italy.,European Laboratory for Non-Linear Spectroscopy (LENS), University of Florence, Via Nello Carrara 1, 50019 Sesto Fiorentino, Italy
| | - Christoph Krafft
- Leibniz Institute of Photonic Technology and Member of Leibniz Research Alliance "Health Technologies", Albert-Einstein-Strasse 9, 07745 Jena, Germany
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21
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Nweke CE, Stegemann JP. Fabrication and characterization of osteogenic function of progenitor cell-laden gelatin microcarriers. J Biomed Mater Res B Appl Biomater 2021; 110:1265-1278. [PMID: 34918466 DOI: 10.1002/jbm.b.34998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 11/29/2021] [Accepted: 12/05/2021] [Indexed: 11/11/2022]
Abstract
Biomaterial-based bone regeneration strategies often include a cellular component to accelerate healing. Modular approaches have the potential for minimally-invasive delivery and the ability to conformally fill complex defects. In this study, spherical gelatin microparticles were fabricated via water-in-oil emulsification and were subsequently crosslinked with genipin. Microparticle diameter depended on impeller geometry, and increased stirring rates consistently produced smaller particles with narrower size distributions. Increasing the concentration of gelatin resulted in larger particles with a broader size distribution. Viscoelastic characterization showed that increased gelatin concentration produced stiffer matrices, though the mechanical properties at lower gelatin concentration were more stable across strain rate. Microparticles of 6.0% wt/vol gelatin were then applied as microcarriers for packed-bed culture of human mesenchymal stromal cells (MSC) at seeding densities of 5.0 × 103 , 2.5 × 104 , or 5.0 × 104 cells/cm2 of surface area, in either control or osteogenic medium. Cell viability was uniformly high (>90%) across seeding densities over 22 days in culture. MSC number stayed approximately constant in the 5.0 × 103 and 2.5 × 104 cells/cm2 samples, while it dropped over time at 5.0 × 104 cells/cm2 . Alkaline phosphatase activity was significantly upregulated in osteogenic conditions relative to controls at day 15, and absolute calcium deposition was strongly induced by days 15 and 22. However, calcium deposition per cell was highest in the lowest cell density, suggesting an inhibitory effect of high cell numbers. These results show that genipin-crosslinked gelatin microcarriers can be reproducibly fabricated and used as microcarriers for progenitor cells, which may have utility in treating large and complex bone defects.
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Affiliation(s)
- Chukwuma E Nweke
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, USA
| | - Jan P Stegemann
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, USA
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22
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Fukada K, Tajima T, Seyama M. Thermoresponsive Gelatin/Chitosan Hydrogel Films for a Degradable Capacitor. ACS APPLIED MATERIALS & INTERFACES 2021; 13:59006-59011. [PMID: 34817996 DOI: 10.1021/acsami.1c14905] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Ingestible electronic devices are tools for exploring the condition of the gastrointestinal tract and adjacent organs without a burden on the patients. Making them safe requires that they be fabricated with harmless materials. In this study, we developed a capacitor using food materials for a wireless sensing component. As a safer approach, gelatin, an ingredient responsive to external stimuli, was selected as a substrate for deforming the device at the desired time. Gelatin experiences sol-gel changes near body temperature; however, it is instantly dissolved and is not suitable for long-term use in the body. Thus, to maintain its thermal responsiveness, we used a tangle of gel networks created by mixing gelatin and chitosan without cross-linking agents. Our search for the appropriate gel mixing ratio provided insights into the criteria for achieving slow sol-gel changes and how to improve the thermal durability. We transferred a sputtered gold film onto the gel films to produce electrodes and then made a capacitor by sandwiching a naturally dried sodium polyacrylate film between the electrodes. The resonance frequency measurement of RLC circuits in combination with commercial plane coils showed that the capacitor worked in the megahertz band and that it collapsed when immersed in hot water. Gastric acid detection was also achieved with this capacitor. This electronic part will contribute to the development of implanted or ingestible medical devices and a wide range of environmental sensors composed of natural ingredients.
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Affiliation(s)
- Kenta Fukada
- NTT Device Technology Labs, NTT Corporation 3-1 Morinosato, Wakamiya, Atsugi, Kanagawa 243-0198, Japan
| | - Takuro Tajima
- NTT Device Technology Labs, NTT Corporation 3-1 Morinosato, Wakamiya, Atsugi, Kanagawa 243-0198, Japan
| | - Michiko Seyama
- NTT Device Technology Labs, NTT Corporation 3-1 Morinosato, Wakamiya, Atsugi, Kanagawa 243-0198, Japan
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23
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Riacci L, Sorriento A, Ricotti L. Genipin-Based Crosslinking of Jellyfish Collagen 3D Hydrogels. Gels 2021; 7:gels7040238. [PMID: 34940298 PMCID: PMC8700866 DOI: 10.3390/gels7040238] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 11/24/2021] [Accepted: 11/25/2021] [Indexed: 01/30/2023] Open
Abstract
Collagen-based hydrogels are an attractive option in the field of cartilage regeneration with features of high biocompatibility and low immunogenic response. Crosslinking treatments are often employed to create stable 3D gels that can support and facilitate cell embodiment. In this study, we explored the properties of JellaGel™, a novel jellyfish material extracted from Rhizostoma pulmo. In particular, we analyzed the influence of genipin, a natural crosslinker, on the formation of 3D stable JellaGel™ hydrogels embedding human chondrocytes. Three concentrations of genipin were used for this purpose (1 mM, 2.5 mM, and 5 mM). Morphological, thermal, and mechanical properties were investigated for the crosslinked materials. The metabolic activity of embedded chondrocytes was also evaluated at different time points (3, 7, and 14 days). Non-crosslinked hydrogels resulted in an unstable matrix, while genipin-crosslinked hydrogels resulted in a stable matrix, without significant changes in their properties; their collagen network revealed characteristic dimensions in the order of 20 µm, while their denaturation temperature was 57 °C. After 7 and 14 days of culture, chondrocytes showed a significantly higher metabolic activity within the hydrogels crosslinked with 1 mM genipin, compared to those crosslinked with 5 mM genipin.
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Affiliation(s)
- Laura Riacci
- The BioRobotics Institute, Scuola Superiore Sant’Anna, 56127 Pisa, Italy;
- Department of Excellence in Robotics & AI, Scuola Superiore Sant’Anna, 56127 Pisa, Italy
- Correspondence: (L.R.); (A.S.)
| | - Angela Sorriento
- The BioRobotics Institute, Scuola Superiore Sant’Anna, 56127 Pisa, Italy;
- Department of Excellence in Robotics & AI, Scuola Superiore Sant’Anna, 56127 Pisa, Italy
- Correspondence: (L.R.); (A.S.)
| | - Leonardo Ricotti
- The BioRobotics Institute, Scuola Superiore Sant’Anna, 56127 Pisa, Italy;
- Department of Excellence in Robotics & AI, Scuola Superiore Sant’Anna, 56127 Pisa, Italy
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24
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Formisano N, Putten C, Grant R, Sahin G, Truckenmüller RK, Bouten CVC, Kurniawan NA, Giselbrecht S. Mechanical Properties of Bioengineered Corneal Stroma. Adv Healthc Mater 2021; 10:e2100972. [PMID: 34369098 DOI: 10.1002/adhm.202100972] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 07/15/2021] [Indexed: 12/26/2022]
Abstract
For the majority of patients with severe corneal injury or disease, corneal transplantation is the only suitable treatment option. Unfortunately, the demand for donor corneas greatly exceeds the availability. To overcome shortage issues, a myriad of bioengineered constructs have been developed as mimetics of the corneal stroma over the last few decades. Despite the sheer number of bioengineered stromas developed , these implants fail clinical trials exhibiting poor tissue integration and adverse effects in vivo. Such shortcomings can partially be ascribed to poor biomechanical performance. In this review, existing approaches for bioengineering corneal stromal constructs and their mechanical properties are described. The information collected in this review can be used to critically analyze the biomechanical properties of future stromal constructs, which are often overlooked, but can determine the failure or success of corresponding implants.
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Affiliation(s)
- Nello Formisano
- Department of Instructive Biomaterials Engineering MERLN Institute for Technology‐Inspired Regenerative Medicine Maastricht University Maastricht 6229 ER The Netherlands
| | - Cas Putten
- Department of Biomedical Engineering Eindhoven University of Technology Eindhoven 5612 AP The Netherlands
| | - Rhiannon Grant
- Department of Instructive Biomaterials Engineering MERLN Institute for Technology‐Inspired Regenerative Medicine Maastricht University Maastricht 6229 ER The Netherlands
| | - Gozde Sahin
- Department of Instructive Biomaterials Engineering MERLN Institute for Technology‐Inspired Regenerative Medicine Maastricht University Maastricht 6229 ER The Netherlands
| | - Roman K. Truckenmüller
- Department of Instructive Biomaterials Engineering MERLN Institute for Technology‐Inspired Regenerative Medicine Maastricht University Maastricht 6229 ER The Netherlands
| | - Carlijn V. C. Bouten
- Department of Biomedical Engineering Eindhoven University of Technology Eindhoven 5612 AP The Netherlands
| | - Nicholas A. Kurniawan
- Department of Biomedical Engineering Eindhoven University of Technology Eindhoven 5612 AP The Netherlands
| | - Stefan Giselbrecht
- Department of Instructive Biomaterials Engineering MERLN Institute for Technology‐Inspired Regenerative Medicine Maastricht University Maastricht 6229 ER The Netherlands
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25
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Wang F, Chen J, Liu J, Zeng H. Cancer theranostic platforms based on injectable polymer hydrogels. Biomater Sci 2021; 9:3543-3575. [PMID: 33634800 DOI: 10.1039/d0bm02149k] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Theranostic platforms that combine therapy with diagnosis not only prevent the undesirable biological responses that may occur when these processes are conducted separately, but also allow individualized therapies for patients. Polymer hydrogels have been employed to provide well-controlled drug release and targeted therapy in theranostics, where injectable hydrogels enable non-invasive treatment and monitoring with a single injection, offering greater patient comfort and efficient therapy. Efforts have been focused on applying injectable polymer hydrogels in theranostic research and clinical use. This review highlights recent progress in the design of injectable polymer hydrogels for cancer theranostics, particularly focusing on the elements/components of theranostic hydrogels, and their cross-linking strategies, structures, and performance with regard to drug delivery/tracking. Therapeutic agents and tracking modalities that are essential components of the theranostic platforms are introduced, and the design strategies, properties and applications of the injectable hydrogels developed via two approaches, namely chemical bonds and physical interactions, are described. The theranostic functions of the platforms are highly dependent on the architecture and components employed for the construction of hydrogels. Challenges currently presented by theranostic platforms based on injectable hydrogels are identified, and prospects of acquiring more comfortable and personalized therapies are proposed.
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Affiliation(s)
- Feifei Wang
- The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 510700, China. and Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada.
| | - Jingsi Chen
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada.
| | - Jifang Liu
- The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong 510700, China.
| | - Hongbo Zeng
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada.
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26
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Guo K, Wang H, Li S, Zhang H, Li S, Zhu H, Yang Z, Zhang L, Chang P, Zheng X. Collagen-Based Thiol-Norbornene Photoclick Bio-Ink with Excellent Bioactivity and Printability. ACS APPLIED MATERIALS & INTERFACES 2021; 13:7037-7050. [PMID: 33517661 DOI: 10.1021/acsami.0c16714] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
As the essential foundation of bioprinting technology, cell-laden bio-ink is confronted with the inevitable contradiction between printability and bioactivity. For example, type I collagen has been widely applied for its excellent biocompatibility; however, its relatively low self-assembly speed restricts the performance in high-precision bioprinting of cell-laden structures. In this study, we synthesize norbornene-functionalized neutral soluble collagen (NorCol) by the reaction of acid-soluble collagen (Col) and carbic anhydride in the aqueous phase. NorCol retains collagen triple-helical conformation and can be quickly orthogonally cross-linked to build a cell-laden hydrogel via a cell-friendly thiol-ene photoclick reaction. Moreover, the additional carboxyl groups produced in the reaction of carbic anhydride and collagen obviously improve the solubility of NorCol in neutral buffer and miscibility of NorCol with other polymers such as alginate and gelatin. It enables hybrid bio-ink to respond to multiple stimuli, resulting in continuous cross-linked NorCol networks in hybrid hydrogels. For the first time, the collagen with a triple helix structure and gelatin can be mixed and printed, keeping the integrity of the printed construct after gelatin's dissolution. The molecular interaction among giant collagen molecules allows NorCol hydrogel formation at a low concentration, which leads to excellent cell spreading, migration, and proliferation. These properties give NorCol flexible formability and excellent biocompatibility in temperature-, ion-, and photo-based bioprinting. We speculate that NorCol is a promising bio-ink for emerging demands in tissue engineering, regenerative medicine, and personalized therapeutics.
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Affiliation(s)
- Kai Guo
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110169, China
| | - Heran Wang
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110169, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shijie Li
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110169, China
| | - Hui Zhang
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110169, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Song Li
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110169, China
| | - Huixuan Zhu
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110169, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhenda Yang
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110169, China
| | - Liming Zhang
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110169, China
| | - Peng Chang
- Department of Plastic and Reconstructive Surgery, Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - Xiongfei Zheng
- State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
- Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110169, China
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27
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Walimbe T, Panitch A. Best of Both Hydrogel Worlds: Harnessing Bioactivity and Tunability by Incorporating Glycosaminoglycans in Collagen Hydrogels. Bioengineering (Basel) 2020; 7:E156. [PMID: 33276506 PMCID: PMC7711789 DOI: 10.3390/bioengineering7040156] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 11/26/2020] [Accepted: 11/30/2020] [Indexed: 01/13/2023] Open
Abstract
Collagen, the most abundant protein in mammals, has garnered the interest of scientists for over 50 years. Its ubiquitous presence in all body tissues combined with its excellent biocompatibility has led scientists to study its potential as a biomaterial for a wide variety of biomedical applications with a high degree of success and widespread clinical approval. More recently, in order to increase their tunability and applicability, collagen hydrogels have frequently been co-polymerized with other natural and synthetic polymers. Of special significance is the use of bioactive glycosaminoglycans-the carbohydrate-rich polymers of the ECM responsible for regulating tissue homeostasis and cell signaling. This review covers the recent advances in the development of collagen-based hydrogels and collagen-glycosaminoglycan blend hydrogels for biomedical research. We discuss the formulations and shortcomings of using collagen in isolation, and the advantages of incorporating glycosaminoglycans (GAGs) in the hydrogels. We further elaborate on modifications used on these biopolymers for tunability and discuss tissue specific applications. The information presented herein will demonstrate the versatility and highly translational value of using collagen blended with GAGs as hydrogels for biomedical engineering applications.
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Affiliation(s)
- Tanaya Walimbe
- Department of Biomedical Engineering, University of California, Davis, CA 95616, USA;
| | - Alyssa Panitch
- Department of Biomedical Engineering, University of California, Davis, CA 95616, USA;
- Department of Surgery, University of California Davis Health, Sacramento, CA 95817, USA
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28
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Effects of genipin concentration on cross-linked β-casein micelles as nanocarrier of naringenin: Colloidal properties, structural characterization and controlled release. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2020.105989] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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29
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Lee JM, Suen SKQ, Ng WL, Ma WC, Yeong WY. Bioprinting of Collagen: Considerations, Potentials, and Applications. Macromol Biosci 2020; 21:e2000280. [PMID: 33073537 DOI: 10.1002/mabi.202000280] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 09/21/2020] [Indexed: 12/15/2022]
Abstract
Collagen is the most abundant extracellular matrix protein that is widely used in tissue engineering (TE). There is little research done on printing pure collagen. To understand the bottlenecks in printing pure collagen, it is imperative to understand collagen from a bottom-up approach. Here it is aimed to provide a comprehensive overview of collagen printing, where collagen assembly in vivo and the various sources of collagen available for TE application are first understood. Next, the current printing technologies and strategy for printing collagen-based materials are highlighted. Considerations and key challenges faced in collagen printing are identified. Finally, the key research areas that would enhance the functionality of printed collagen are presented.
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Affiliation(s)
- Jia Min Lee
- Singapore Centre for 3D Printing, School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Sean Kang Qiang Suen
- Singapore Centre for 3D Printing, School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Wei Long Ng
- HP-NTU Digital Manufacturing Corporate Lab, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Wai Cheung Ma
- Singapore Centre for 3D Printing, School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Wai Yee Yeong
- Singapore Centre for 3D Printing, School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore.,HP-NTU Digital Manufacturing Corporate Lab, 50 Nanyang Avenue, Singapore, 639798, Singapore
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30
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Qin X, Vila-Sanjurjo C, Singh R, Philipp B, Goycoolea FM. Screening of Bacterial Quorum Sensing Inhibitors in a Vibrio fischeri LuxR-Based Synthetic Fluorescent E. coli Biosensor. Pharmaceuticals (Basel) 2020; 13:E263. [PMID: 32971993 PMCID: PMC7559085 DOI: 10.3390/ph13090263] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 09/15/2020] [Accepted: 09/18/2020] [Indexed: 02/07/2023] Open
Abstract
A library of 23 pure compounds of varying structural and chemical characteristics was screened for their quorum sensing (QS) inhibition activity using a synthetic fluorescent Escherichia coli biosensor that incorporates a modified version of lux regulon of Vibrio fischeri. Four such compounds exhibited QS inhibition activity without compromising bacterial growth, namely, phenazine carboxylic acid (PCA), 2-heptyl-3-hydroxy-4-quinolone (PQS), 1H-2-methyl-4-quinolone (MOQ) and genipin. When applied at 50 µM, these compounds reduced the QS response of the biosensor to 33.7% ± 2.6%, 43.1% ± 2.7%, 62.2% ± 6.3% and 43.3% ± 1.2%, respectively. A series of compounds only showed activity when tested at higher concentrations. This was the case of caffeine, which, when applied at 1 mM, reduced the QS to 47% ± 4.2%. In turn, capsaicin, caffeic acid phenethyl ester (CAPE), furanone and polygodial exhibited antibacterial activity when applied at 1mM, and reduced the bacterial growth by 12.8% ± 10.1%, 24.4% ± 7.0%, 91.4% ± 7.4% and 97.5% ± 3.8%, respectively. Similarly, we confirmed that trans-cinnamaldehyde and vanillin, when tested at 1 mM, reduced the QS response to 68.3% ± 4.9% and 27.1% ± 7.4%, respectively, though at the expense of concomitantly reducing cell growth by 18.6% ± 2.5% and 16% ± 2.2%, respectively. Two QS natural compounds of Pseudomonas aeruginosa, namely PQS and PCA, and the related, synthetic compounds MOQ, 1H-3-hydroxyl-4-quinolone (HOQ) and 1H-2-methyl-3-hydroxyl-4-quinolone (MHOQ) were used in molecular docking studies with the binding domain of the QS receptor TraR as a target. We offer here a general interpretation of structure-function relationships in this class of compounds that underpins their potential application as alternatives to antibiotics in controlling bacterial virulence.
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Affiliation(s)
- Xiaofei Qin
- Department of Bioengineering, Zhuhai Campus of Zunyi Medical University, Zhuhai 519041, China;
- Laboratory of Nanobiotechnology, Institute of Plant Biology and Biotechnology, University of Münster, Schlossplatz 8, D-48143 Münster, Germany;
| | - Celina Vila-Sanjurjo
- Laboratory of Nanobiotechnology, Institute of Plant Biology and Biotechnology, University of Münster, Schlossplatz 8, D-48143 Münster, Germany;
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, University of Santiago de Compostela. Campus Vida, s/n, 15782 Santiago de Compostela, Spain
| | - Ratna Singh
- Laboratory of Molecular Phytopathology and Renewable Resources, Institute of Plant Biology and Biotechnology, University of Münster, Schlossplatz 8, D-48143 Münster, Germany;
| | - Bodo Philipp
- Institute of Molecular Microbiology and Biotechnology, University of Münster, Corrensstraße 3, D-48149 Münster, Germany;
| | - Francisco M. Goycoolea
- Laboratory of Nanobiotechnology, Institute of Plant Biology and Biotechnology, University of Münster, Schlossplatz 8, D-48143 Münster, Germany;
- School of Food Science and Nutrition, University of Leeds, Leeds LS2 9JT, UK
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31
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Nair M, Johal RK, Hamaia SW, Best SM, Cameron RE. Tunable bioactivity and mechanics of collagen-based tissue engineering constructs: A comparison of EDC-NHS, genipin and TG2 crosslinkers. Biomaterials 2020. [PMID: 32480093 DOI: 10.17863/cam.36098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Due to its ubiquity and versatility in the human body, collagen is an ideal base material for tissue-engineering constructs. Chemical crosslinking treatments allow precise control of the biochemical and mechanical properties through macromolecular modifications to the structure of collagen. In this work, three key facets regarding the collagen crosslinking process are explored. Firstly, a comparison is drawn between the carbodiimide-succinimide (EDC-NHS) system and two emerging crosslinkers utilising alternate chemistries: genipin and tissue transglutaminase (TG2). By characterising the chemical changes upon treatment, the effect of EDC-NHS, genipin and TG2 crosslinking mechanisms on the chemical structure of collagen, and thus the mechanical properties conferred to the substrate is explored. Secondly, the relative importance of mechanical and biochemical cues on cellular phenomena are investigated, including cell viability, integrin-specific attachment, spreading and proliferation. Here, we observe that for human dermal fibroblasts, long-term, stable proliferation is preconditioned by the availability of suitable binding sites, irrespective of the substrate modulus post-crosslinking. Finally, as seen in the graphical abstract we show that by choosing the appropriate crosslinker chemistries, a materials selection map can be drawn for collagen films, encompassing both a range of tensile modulus and fibroblast proliferation which can be modified independently. Thus, in addition to a range of parameters that can be modified in collagen constructs, we demonstrate a route to obtaining tunable bioactivity and mechanics in collagen constructs is uncovered, that is exclusively driven by the crosslinking process.
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Affiliation(s)
- Malavika Nair
- Cambridge Centre for Medical Materials, Department of Materials Science and Metallurgy, University of Cambridge, 27 Charles Babbage Road, Cambridge, CB3 0FS, United Kingdom
| | - Ramneek K Johal
- Cambridge Centre for Medical Materials, Department of Materials Science and Metallurgy, University of Cambridge, 27 Charles Babbage Road, Cambridge, CB3 0FS, United Kingdom
| | - Samir W Hamaia
- Department of Biochemistry, University of Cambridge, 8 Tennis Court Road, Cambridge, CB2 1QW, United Kingdom
| | - Serena M Best
- Cambridge Centre for Medical Materials, Department of Materials Science and Metallurgy, University of Cambridge, 27 Charles Babbage Road, Cambridge, CB3 0FS, United Kingdom.
| | - Ruth E Cameron
- Cambridge Centre for Medical Materials, Department of Materials Science and Metallurgy, University of Cambridge, 27 Charles Babbage Road, Cambridge, CB3 0FS, United Kingdom.
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32
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Montalbano G, Borciani G, Cerqueni G, Licini C, Banche-Niclot F, Janner D, Sola S, Fiorilli S, Mattioli-Belmonte M, Ciapetti G, Vitale-Brovarone C. Collagen Hybrid Formulations for the 3D Printing of Nanostructured Bone Scaffolds: An Optimized Genipin-Crosslinking Strategy. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1681. [PMID: 32867075 PMCID: PMC7558137 DOI: 10.3390/nano10091681] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 08/22/2020] [Accepted: 08/24/2020] [Indexed: 12/27/2022]
Abstract
Bone-tissue regeneration induced by biomimetic bioactive materials is the most promising approach alternative to the clinical ones used to treat bone loss caused by trauma or diseases such as osteoporosis. The goal is to design nanostructured bioactive constructs able to reproduce the physiological environment: By mimicking the natural features of bone tissue, the cell behavior during the regeneration process may be addressed. At present, 3D-printing technologies are the only techniques able to design complex structures avoiding constraints of final shape and porosity. However, this type of biofabrication requires complex optimization of biomaterial formulations in terms of specific rheological and mechanical properties while preserving high biocompatibility. In this work, we combined nano-sized mesoporous bioactive glasses enriched with strontium ions with type I collagen, to formulate a bioactive ink for 3D-printing technologies. Moreover, to avoid the premature release of strontium ions within the crosslinking medium and to significantly increase the material mechanical and thermal stability, we applied an optimized chemical treatment using ethanol-dissolved genipin solutions. The high biocompatibility of the hybrid system was confirmed by using MG-63 and Saos-2 osteoblast-like cell lines, further highlighting the great potential of the innovative nanocomposite for the design of bone-like scaffolds.
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Affiliation(s)
- Giorgia Montalbano
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy; (G.M.); (G.B.); (C.L.); (F.B.-N.); (D.J.); (S.S.); (S.F.)
| | - Giorgia Borciani
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy; (G.M.); (G.B.); (C.L.); (F.B.-N.); (D.J.); (S.S.); (S.F.)
- Scienze e Tecnologie Biomediche, IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136 Bologna, Italy;
| | - Giorgia Cerqueni
- Department of Clinical and Molecular Sciences (DISCLIMO,) Università Politecnica delle Marche, Via Tronto 10/a, 60126 Ancona, Italy; (G.C.); (M.M.-B.)
| | - Caterina Licini
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy; (G.M.); (G.B.); (C.L.); (F.B.-N.); (D.J.); (S.S.); (S.F.)
- Department of Clinical and Molecular Sciences (DISCLIMO,) Università Politecnica delle Marche, Via Tronto 10/a, 60126 Ancona, Italy; (G.C.); (M.M.-B.)
| | - Federica Banche-Niclot
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy; (G.M.); (G.B.); (C.L.); (F.B.-N.); (D.J.); (S.S.); (S.F.)
| | - Davide Janner
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy; (G.M.); (G.B.); (C.L.); (F.B.-N.); (D.J.); (S.S.); (S.F.)
| | - Stefania Sola
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy; (G.M.); (G.B.); (C.L.); (F.B.-N.); (D.J.); (S.S.); (S.F.)
| | - Sonia Fiorilli
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy; (G.M.); (G.B.); (C.L.); (F.B.-N.); (D.J.); (S.S.); (S.F.)
| | - Monica Mattioli-Belmonte
- Department of Clinical and Molecular Sciences (DISCLIMO,) Università Politecnica delle Marche, Via Tronto 10/a, 60126 Ancona, Italy; (G.C.); (M.M.-B.)
| | - Gabriela Ciapetti
- Scienze e Tecnologie Biomediche, IRCCS Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136 Bologna, Italy;
| | - Chiara Vitale-Brovarone
- Department of Applied Science and Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy; (G.M.); (G.B.); (C.L.); (F.B.-N.); (D.J.); (S.S.); (S.F.)
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33
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Shaik TA, Alfonso-Garcia A, Richter M, Korinth F, Krafft C, Marcu L, Popp J. FLIm and Raman Spectroscopy for Investigating Biochemical Changes of Bovine Pericardium upon Genipin Cross-Linking. Molecules 2020; 25:E3857. [PMID: 32854230 PMCID: PMC7503846 DOI: 10.3390/molecules25173857] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 08/18/2020] [Accepted: 08/19/2020] [Indexed: 12/11/2022] Open
Abstract
Biomaterials used in tissue engineering and regenerative medicine applications benefit from longitudinal monitoring in a non-destructive manner. Label-free imaging based on fluorescence lifetime imaging (FLIm) and Raman spectroscopy were used to monitor the degree of genipin (GE) cross-linking of antigen-removed bovine pericardium (ARBP) at three incubation time points (0.5, 1.0, and 2.5 h). Fluorescence lifetime decreased and the emission spectrum redshifted compared to that of uncross-linked ARBP. The Raman signature of GE-ARBP was resonance-enhanced due to the GE cross-linker that generated new Raman bands at 1165, 1326, 1350, 1380, 1402, 1470, 1506, 1535, 1574, 1630, 1728, and 1741 cm-1. These were validated through density functional theory calculations as cross-linker-specific bands. A multivariate multiple regression model was developed to enhance the biochemical specificity of FLIm parameters fluorescence intensity ratio (R2 = 0.92) and lifetime (R2 = 0.94)) with Raman spectral results. FLIm and Raman spectroscopy detected biochemical changes occurring in the collagenous tissue during the cross-linking process that were characterized by the formation of a blue pigment which affected the tissue fluorescence and scattering properties. In conclusion, FLIm parameters and Raman spectroscopy were used to monitor the degree of cross-linking non-destructively.
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Affiliation(s)
- Tanveer Ahmed Shaik
- Leibniz Institute of Photonic Technology Jena e.V., Albert-Einstein-Str. 9, 07745 Jena, Germany; (T.A.S.); (F.K.); (C.K.)
| | - Alba Alfonso-Garcia
- Biomedical Engineering Department, University of California Davis, Davis, CA 95616, USA;
| | - Martin Richter
- Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany;
| | - Florian Korinth
- Leibniz Institute of Photonic Technology Jena e.V., Albert-Einstein-Str. 9, 07745 Jena, Germany; (T.A.S.); (F.K.); (C.K.)
| | - Christoph Krafft
- Leibniz Institute of Photonic Technology Jena e.V., Albert-Einstein-Str. 9, 07745 Jena, Germany; (T.A.S.); (F.K.); (C.K.)
| | - Laura Marcu
- Biomedical Engineering Department, University of California Davis, Davis, CA 95616, USA;
| | - Jürgen Popp
- Leibniz Institute of Photonic Technology Jena e.V., Albert-Einstein-Str. 9, 07745 Jena, Germany; (T.A.S.); (F.K.); (C.K.)
- Institute of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany;
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Zhang X, Xu S, Shen L, Li G. Factors affecting thermal stability of collagen from the aspects of extraction, processing and modification. JOURNAL OF LEATHER SCIENCE AND ENGINEERING 2020. [DOI: 10.1186/s42825-020-00033-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Abstract
Collagen, as a thermal-sensitive protein, is the most abundant structural protein in animals. Native collagen has been widely applied in various fields due to its specific physicochemical and biological properties. The beneficial properties would disappear with the collapse of the unique triple helical structure during heating. Understanding thermal stability of collagen is of great significance for practical applications. Previous studies have shown the thermal stability would be affected by the different sources, extraction methods, solvent systems in vitro and modified methods. Accordingly, the factors affecting thermal stability of collagen are discussed in detail in this review.
Graphical abstract
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Ishida-Ishihara S, Akiyama M, Furusawa K, Naguro I, Ryuno H, Sushida T, Ishihara S, Haga H. Osmotic gradients induce stable dome morphogenesis on extracellular matrix. J Cell Sci 2020; 133:jcs.243865. [PMID: 32576662 DOI: 10.1242/jcs.243865] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 06/11/2020] [Indexed: 01/04/2023] Open
Abstract
One of the fundamental processes in morphogenesis is dome formation, but many of the mechanisms involved are unexplored. Previous in vitro studies showed that an osmotic gradient is the driving factor of dome formation. However, these investigations were performed without extracellular matrix (ECM), which provides structural support to morphogenesis. With the use of ECM, we observed that basal hypertonic stress induced stable domes in vitro that have not been seen in previous studies. These domes developed as a result of ECM swelling via aquaporin water transport activity. Based on computer simulation, uneven swelling, with a positive feedback between cell stretching and enhanced water transport, was a cause of dome formation. These results indicate that osmotic gradients induce dome morphogenesis via both enhanced water transport activity and subsequent ECM swelling.
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Affiliation(s)
- Sumire Ishida-Ishihara
- Department of Advanced Transdisciplinary Sciences, Faculty of Advanced Life Science, Hokkaido University, N10-W8, Kita-ku, Sapporo 060-0810, Japan
| | - Masakazu Akiyama
- Meiji Institute for Advanced Study of Mathematical Sciences, Meiji University, Nakano 4-21-1, Nakano-ku, Tokyo 164-8525, Japan
| | - Kazuya Furusawa
- Department of Advanced Transdisciplinary Sciences, Faculty of Advanced Life Science, Hokkaido University, N10-W8, Kita-ku, Sapporo 060-0810, Japan.,Faculty of Environmental and Information Sciences, Fukui University of Technology, Gakuen 3-6-1, Fukui 910-8505, Japan
| | - Isao Naguro
- Graduate School of Pharmaceutical Sciences, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Hiroki Ryuno
- Graduate School of Pharmaceutical Sciences, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Takamichi Sushida
- Department of Computer Science and Technology, Salesian Polytechnic, Oyamagaoka 4-6-8, Machida City, Tokyo 194-0215, Japan
| | - Seiichiro Ishihara
- Department of Advanced Transdisciplinary Sciences, Faculty of Advanced Life Science, Hokkaido University, N10-W8, Kita-ku, Sapporo 060-0810, Japan.,Soft Matter GI-CoRE, Hokkaido University, N21W11, Kita-ku, Sapporo 001-0021, Japan
| | - Hisashi Haga
- Department of Advanced Transdisciplinary Sciences, Faculty of Advanced Life Science, Hokkaido University, N10-W8, Kita-ku, Sapporo 060-0810, Japan .,Soft Matter GI-CoRE, Hokkaido University, N21W11, Kita-ku, Sapporo 001-0021, Japan
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Hafezi F, Shorter S, Tabriz AG, Hurt A, Elmes V, Boateng J, Douroumis D. Bioprinting and Preliminary Testing of Highly Reproducible Novel Bioink for Potential Skin Regeneration. Pharmaceutics 2020; 12:pharmaceutics12060550. [PMID: 32545741 PMCID: PMC7356948 DOI: 10.3390/pharmaceutics12060550] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 06/01/2020] [Accepted: 06/09/2020] [Indexed: 12/19/2022] Open
Abstract
Three-dimensional (3D) bioprinting is considered as a novel approach in biofabricating cell-laden constructs that could potentially be used to promote skin regeneration following injury. In this study, a novel crosslinked chitosan (CH)–genipin (GE) bioink laden with keratinocyte and human dermal fibroblast cells was developed and printed successfully using an extruder-based bioprinter. By altering the composition and degree of CH–GE crosslinking, bioink printability was further assessed and compared with a commercial bioink. Rheological analysis showed that the viscosity of the optimised bioink was in a suitable range that facilitated reproducible and reliable printing by applying low pressures ranging from 20–40 kPa. The application of low printing pressures proved vital for viability of cells loaded within the bioinks. Further characterisation using MTT assay showed that cells were still viable within the printed construct at 93% despite the crosslinking, processing and after subjecting to physiological conditions for seven days. The morphological study of the printed cells showed that they were mobile within the bioink. Furthermore, the multi-layered 3D printed constructs demonstrated excellent self-supportive structures in a consistent manner.
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Affiliation(s)
- Forough Hafezi
- School of Science, Faculty of Engineering and Science, University of Greenwich, Chatham Maritime, Kent ME4 4TB, UK; (F.H.); (S.S.); (A.G.T.); (A.H.); (V.E.)
- Centre for Innovation and Process Engineering Research, University of Greenwich, Chatham Maritime, Kent ME4 4TB, UK
| | - Susan Shorter
- School of Science, Faculty of Engineering and Science, University of Greenwich, Chatham Maritime, Kent ME4 4TB, UK; (F.H.); (S.S.); (A.G.T.); (A.H.); (V.E.)
| | - Atabak Ghanizadeh Tabriz
- School of Science, Faculty of Engineering and Science, University of Greenwich, Chatham Maritime, Kent ME4 4TB, UK; (F.H.); (S.S.); (A.G.T.); (A.H.); (V.E.)
- Centre for Innovation and Process Engineering Research, University of Greenwich, Chatham Maritime, Kent ME4 4TB, UK
| | - Andrew Hurt
- School of Science, Faculty of Engineering and Science, University of Greenwich, Chatham Maritime, Kent ME4 4TB, UK; (F.H.); (S.S.); (A.G.T.); (A.H.); (V.E.)
| | - Victoria Elmes
- School of Science, Faculty of Engineering and Science, University of Greenwich, Chatham Maritime, Kent ME4 4TB, UK; (F.H.); (S.S.); (A.G.T.); (A.H.); (V.E.)
| | - Joshua Boateng
- School of Science, Faculty of Engineering and Science, University of Greenwich, Chatham Maritime, Kent ME4 4TB, UK; (F.H.); (S.S.); (A.G.T.); (A.H.); (V.E.)
- Centre for Innovation and Process Engineering Research, University of Greenwich, Chatham Maritime, Kent ME4 4TB, UK
- Correspondence: (J.B.); (D.D.)
| | - Dennis Douroumis
- School of Science, Faculty of Engineering and Science, University of Greenwich, Chatham Maritime, Kent ME4 4TB, UK; (F.H.); (S.S.); (A.G.T.); (A.H.); (V.E.)
- Centre for Innovation and Process Engineering Research, University of Greenwich, Chatham Maritime, Kent ME4 4TB, UK
- Correspondence: (J.B.); (D.D.)
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Tunable bioactivity and mechanics of collagen-based tissue engineering constructs: A comparison of EDC-NHS, genipin and TG2 crosslinkers. Biomaterials 2020; 254:120109. [PMID: 32480093 PMCID: PMC7298615 DOI: 10.1016/j.biomaterials.2020.120109] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 04/24/2020] [Accepted: 05/07/2020] [Indexed: 02/05/2023]
Abstract
Due to its ubiquity and versatility in the human body, collagen is an ideal base material for tissue-engineering constructs. Chemical crosslinking treatments allow precise control of the biochemical and mechanical properties through macromolecular modifications to the structure of collagen. In this work, three key facets regarding the collagen crosslinking process are explored. Firstly, a comparison is drawn between the carbodiimide-succinimide (EDC-NHS) system and two emerging crosslinkers utilising alternate chemistries: genipin and tissue transglutaminase (TG2). By characterising the chemical changes upon treatment, the effect of EDC-NHS, genipin and TG2 crosslinking mechanisms on the chemical structure of collagen, and thus the mechanical properties conferred to the substrate is explored. Secondly, the relative importance of mechanical and biochemical cues on cellular phenomena are investigated, including cell viability, integrin-specific attachment, spreading and proliferation. Here, we observe that for human dermal fibroblasts, long-term, stable proliferation is preconditioned by the availability of suitable binding sites, irrespective of the substrate modulus post-crosslinking. Finally, as seen in the graphical abstract we show that by choosing the appropriate crosslinker chemistries, a materials selection map can be drawn for collagen films, encompassing both a range of tensile modulus and fibroblast proliferation which can be modified independently. Thus, in addition to a range of parameters that can be modified in collagen constructs, we demonstrate a route to obtaining tunable bioactivity and mechanics in collagen constructs is uncovered, that is exclusively driven by the crosslinking process.
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Chiesa I, De Maria C, Lapomarda A, Fortunato GM, Montemurro F, Di Gesù R, Tuan RS, Vozzi G, Gottardi R. Endothelial cells support osteogenesis in an in vitro vascularized bone model developed by 3D bioprinting. Biofabrication 2020; 12:025013. [PMID: 31929117 DOI: 10.1088/1758-5090/ab6a1d] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Bone is a highly vascularized tissue, in which vascularization and mineralization are concurrent processes during skeletal development. Indeed, both components should be included in any reliable and adherent in vitro model platform for the study of bone physiology and pathogenesis of skeletal disorders. To this end, we developed an in vitro vascularized bone model, using a gelatin-nanohydroxyapatite (gel-nHA) three-dimensional (3D) bioprinted scaffold. First, we seeded human mesenchymal stem cells (hMSCs) on the scaffold, which underwent osteogenic differentiation for 2 weeks. Then, we included lentiviral-GFP transfected human umbilical vein endothelial cells (HUVECs) within the 3D bioprinted scaffold macropores to form a capillary-like network during 2 more weeks of culture. We tested three experimental conditions: condition 1, bone constructs with HUVECs cultured in 1:1 osteogenic medium (OM): endothelial medium (EM); condition 2, bone constructs without HUVECs cultured in 1:1 OM:EM; condition 3: bone construct with HUVECs cultured in 1:1 growth medium:EM. All samples resulted in engineered bone matrix. In conditions 1 and 3, HUVECs formed tubular structures within the bone constructs, with the assembly of a complex capillary-like network visible by fluorescence microscopy in the live tissue and histology. CD31 immunostaining confirmed significant vascular lumen formation. Quantitative real-time PCR was used to quantify osteogenic differentiation and endothelial response. Alkaline phosphatase and runt-related transcription factor 2 upregulation confirmed early osteogenic commitment of hMSCs. Even when OM was removed under condition 3, we observed clear osteogenesis, which was notably accompanied by upregulation of osteopontin, vascular endothelial growth factor, and collagen type I. These findings indicate that we have successfully realized a bone model with robust vascularization in just 4 weeks of culture and we highlighted how the inclusion of endothelial cells more realistically supports osteogenesis. The approach reported here resulted in a biologically inspired in vitro model of bone vascularization, simulating de novo morphogenesis of capillary vessels occurring during tissue development.
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Affiliation(s)
- Irene Chiesa
- Research Center 'E. Piaggio', University of Pisa, Pisa, Italy. Center for Cellular and Molecular Engineering, Department of Orthopedic Surgery, School of Medicine, University of Pittsburgh, Pittsburgh, United States of America. Department of Pediatrics, Division of Pulmonary Medicine, The Children's Hospital of Philadelphia, Philadelphia, United States of America. Dept. of Ingegneria dell'Informazione, University of Pisa, Pisa, Italy
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Musilkova J, Filova E, Pala J, Matejka R, Hadraba D, Vondrasek D, Kaplan O, Riedel T, Brynda E, Kucerova J, Konarik M, Lopot F, Jan Pirk, Bacakova L. Human decellularized and crosslinked pericardium coated with bioactive molecular assemblies. ACTA ACUST UNITED AC 2019; 15:015008. [PMID: 31665713 DOI: 10.1088/1748-605x/ab52db] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Decellularized human pericardium is under study as an allogenic material for cardiovascular applications. The effects of crosslinking on the mechanical properties of decellularized pericardium were determined with a uniaxial tensile test, and the effects of crosslinking on the collagen structure of decellularized pericardium were determined by multiphoton microscopy. The viability of human umbilical vein endothelial cells seeded on decellularized human pericardium and on pericardium strongly and weakly crosslinked with glutaraldehyde and with genipin was evaluated by means of an MTS assay. The viability of the cells, measured by their metabolic activity, decreased considerably when the pericardium was crosslinked with glutaraldehyde. Conversely, the cell viability increased when the pericardium was crosslinked with genipin. Coating both non-modified pericardium and crosslinked pericardium with a fibrin mesh or with a mesh containing attached heparin and/or fibronectin led to a significant increase in cell viability. The highest degree of viability was attained for samples that were weakly crosslinked with genipin and modified by means of a fibrin and fibronectin coating. The results indicate a method by which in vivo endothelialization of human cardiac allografts or xenografts could potentially be encouraged.
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Affiliation(s)
- Jana Musilkova
- Department of Biomaterials and Tissue Engineering, Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic
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Wang Q, Jiang J, Xiong YL. Genipin-Aided Protein Cross-linking to Modify Structural and Rheological Properties of Emulsion-Filled Hempseed Protein Hydrogels. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:12895-12903. [PMID: 31682429 DOI: 10.1021/acs.jafc.9b05665] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Genipin, a natural electrophilic cross-linker, was applied (5, 10, 20, and 30 mM) to modify hempseed protein isolate (HPI). Genipin treatments resulted in general losses of total sulfhydryls (up to 2.9 nmol/mg) and free amines (up to 77.3 nmol/mg). Surface hydrophobicity decreased by nearly 90% with 30 mM genipin, corresponding to similar tryptophan fluorescence quenching. The genipin treatment converted HPI into highly cross-linked polymers. Hydrogels formed with such polymers when also incorporated with hemp oil emulsions exhibited substantially enhanced gelling ability: up to 3.3- and 2.6-fold increases, respectively, in gel strength and gel elasticity over genipin-untreated protein. The genipin-modified composite gels also exhibited superior water-holding capacity. Microstructural analysis revealed a compact gel network filled with protein-coated oil globules that interacted intimately with the protein matrix when treated with genipin. Such gels remained readily digestible. Hence, genipin-treated hemp protein hydrogels show promise as functional food components.
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Affiliation(s)
- Qingling Wang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, and Synergetic Innovation Center of Food Safety and Nutrition , at Jiangnan University , Wuxi , Jiangsu 214122 , China
| | - Jiang Jiang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, and Synergetic Innovation Center of Food Safety and Nutrition , at Jiangnan University , Wuxi , Jiangsu 214122 , China
| | - Youling L Xiong
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, and Synergetic Innovation Center of Food Safety and Nutrition , at Jiangnan University , Wuxi , Jiangsu 214122 , China
- Department of Animal and Food Sciences , University of Kentucky , Lexington , Kentucky 40546 , United States
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Wang D, Wang X, Li X, Jiang L, Chang Z, Li Q. Biologically responsive, long-term release nanocoating on an electrospun scaffold for vascular endothelialization and anticoagulation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 107:110212. [PMID: 31761208 DOI: 10.1016/j.msec.2019.110212] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 08/21/2019] [Accepted: 09/16/2019] [Indexed: 01/19/2023]
Abstract
A critical challenge to the development of tissue engineering small-diameter vascular grafts is to achieve rapid endothelialization and long-term anticoagulation. It is necessary to graft both adhesion and antithrombus factors onto the surface of polycaprolactone without burst release to promote endothelial cell affinity and antithrombogenicity. A bionic structure with a nanocoating that allows a biologically responsive, long-term release was employed in this work to enable the grafting of various bioactive molecules such as gelatin, polylysine, and heparin. This approach involved orienting the biomimetic vascular structures; the self-assembly grafting of gelatin, polylysine, and heparin nanoparticles; and genipin crosslinking to form a multiphase crosslinked nanocoating. In this biologically inspired design, vascular endothelialization and long-term anticoagulation were successfully induced through a matrix metallopeptidase 2 regulative mechanism by delivering both adhesion and antithrombus factors with a responsive, long-term release without burst release. The method provided a simple and effective approach for delivering dual factors for tissue engineering small-diameter vascular grafts.
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Affiliation(s)
- Dongfang Wang
- School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou, 450001, PR China; National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, 450001, PR China.
| | - Xiaofeng Wang
- School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou, 450001, PR China; National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, 450001, PR China.
| | - Xuyan Li
- School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou, 450001, PR China; National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, 450001, PR China.
| | - Lin Jiang
- National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, 450001, PR China.
| | - Zhonghua Chang
- School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou, 450001, PR China; National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, 450001, PR China.
| | - Qian Li
- School of Mechanics and Engineering Science, Zhengzhou University, Zhengzhou, 450001, PR China; National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, 450001, PR China.
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Hannon BG, Schwaner SA, Boazak EM, Gerberich BG, Winger EJ, Prausnitz MR, Ethier CR. Sustained scleral stiffening in rats after a single genipin treatment. J R Soc Interface 2019; 16:20190427. [PMID: 31615330 DOI: 10.1098/rsif.2019.0427] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Scleral stiffening has been proposed as a therapy for glaucoma and myopia. Previous in vivo studies have evaluated the efficacy of scleral stiffening after multiple treatments with a natural collagen crosslinker, genipin. However, multiple injections limit clinical translatability. Here, we examined whether scleral stiffening was maintained after four weeks following a single genipin treatment. Eyes from brown Norway rats were treated in vivo with a single 15 mM genipin retrobulbar injection, sham retrobulbar injection, or were left naive. Eyes were enucleated either 1 day or four weeks post-injection and underwent whole globe inflation testing. We assessed first principal Lagrange strain of the posterior sclera using digital image correlation as a proxy for scleral stiffness. Four weeks post-injection, genipin treatment resulted in a 58% reduction in scleral strain as compared to controls (p = 0.005). We conclude that a single in vivo injection of genipin effectively stiffened rat sclera for at least four weeks which motivates further functional studies and possible clinical translation of genipin-induced scleral stiffening.
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Affiliation(s)
- Bailey G Hannon
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, USA
| | - Stephen A Schwaner
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, USA
| | - Elizabeth M Boazak
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA
| | - Brandon G Gerberich
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA
| | - Erin J Winger
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, USA
| | - Mark R Prausnitz
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, USA.,Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA
| | - C Ross Ethier
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, USA.,Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA
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Chen IH, Chen YF, Liou JH, Lai JT, Hsu CC, Wang NY, Jan JS. Green synthesis of gold nanoparticle/gelatin/protein nanogels with enhanced bioluminescence/biofluorescence. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 105:110101. [PMID: 31546461 DOI: 10.1016/j.msec.2019.110101] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 07/24/2019] [Accepted: 08/19/2019] [Indexed: 12/15/2022]
Abstract
Here we report the green synthesis of gelatin/protein hybrid nanogels containing gold nanoparticles (AuNPs) that collectively exhibit metal-enhanced luminescence/fluorescence (MEL/MEF). The gelatin/protein nanogels, prepared by genipin cross-linking of preformed gelatin/protein polyion complexes (PICs), exhibited sizes ranging between 50 and 200 nm, depending on the weight ratio of gelatin and protein. These nanogels serve as reducing and stabilizing agents for the AuNPs, allowing for nucleation in a gel network that exhibits colloidal stability and MEL/MEF. AuNP/gelatin/HRP and AuNP/gelatin/LTF nanogels presented an ~11-fold enhancement of bioluminescence in an HRP-luminol system and a ~50-fold fluorescence enhancement when compared to free LTF in cell uptake experiments. These hybrid nanogels show promise for optically enhanced diagnosis and other therapeutic applications.
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Affiliation(s)
- I-Hsiu Chen
- Department of Chemical Engineering, National Cheng Kung University, No 1, University Rd., Tainan 70101, Taiwan
| | - Yu-Fon Chen
- Department of Chemical Engineering, National Cheng Kung University, No 1, University Rd., Tainan 70101, Taiwan
| | - Jhih-Han Liou
- Department of Chemical Engineering, National Cheng Kung University, No 1, University Rd., Tainan 70101, Taiwan
| | - Jinn-Tsyy Lai
- Bioresource Collection and Research Center, Food Industry Research and Development Institute, Hsinchu 30052, Taiwan
| | - Chia-Chen Hsu
- Bioresource Collection and Research Center, Food Industry Research and Development Institute, Hsinchu 30052, Taiwan
| | - Nai-Yi Wang
- Bioresource Collection and Research Center, Food Industry Research and Development Institute, Hsinchu 30052, Taiwan
| | - Jeng-Shiung Jan
- Department of Chemical Engineering, National Cheng Kung University, No 1, University Rd., Tainan 70101, Taiwan; Hierarchical Green-Energy Materials (Hi-GEM) Research Center, National Cheng Kung University, Tainan 70101, Taiwan.
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Meyer M. Processing of collagen based biomaterials and the resulting materials properties. Biomed Eng Online 2019; 18:24. [PMID: 30885217 PMCID: PMC6423854 DOI: 10.1186/s12938-019-0647-0] [Citation(s) in RCA: 235] [Impact Index Per Article: 47.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Accepted: 03/12/2019] [Indexed: 02/07/2023] Open
Abstract
Collagen, the most abundant extracellular matrix protein in animal kingdom belongs to a family of fibrous proteins, which transfer load in tissues and which provide a highly biocompatible environment for cells. This high biocompatibility makes collagen a perfect biomaterial for implantable medical products and scaffolds for in vitro testing systems. To manufacture collagen based solutions, porous sponges, membranes and threads for surgical and dental purposes or cell culture matrices, collagen rich tissues as skin and tendon of mammals are intensively processed by physical and chemical means. Other tissues such as pericardium and intestine are more gently decellularized while maintaining their complex collagenous architectures. Tissue processing technologies are organized as a series of steps, which are combined in different ways to manufacture structurally versatile materials with varying properties in strength, stability against temperature and enzymatic degradation and cellular response. Complex structures are achieved by combined technologies. Different drying techniques are performed with sterilisation steps and the preparation of porous structures simultaneously. Chemical crosslinking is combined with casting steps as spinning, moulding or additive manufacturing techniques. Important progress is expected by using collagen based bio-inks, which can be formed into 3D structures and combined with live cells. This review will give an overview of the technological principles of processing collagen rich tissues down to collagen hydrolysates and the methods to rebuild differently shaped products. The effects of the processing steps on the final materials properties are discussed especially with regard to the thermal and the physical properties and the susceptibility to enzymatic degradation. These properties are key features for biological and clinical application, handling and metabolization.
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Affiliation(s)
- Michael Meyer
- Research Institute for Leather and Plastic Sheeting, Meissner Ring 1-5, 09599, Freiberg, Germany.
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Chitosan based polymer/bioglass composites for tissue engineering applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 96:955-967. [DOI: 10.1016/j.msec.2018.12.026] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 11/09/2018] [Accepted: 12/09/2018] [Indexed: 01/12/2023]
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Yuan L, Li X, Ge L, Jia X, Lei J, Mu C, Li D. Emulsion Template Method for the Fabrication of Gelatin-Based Scaffold with a Controllable Pore Structure. ACS APPLIED MATERIALS & INTERFACES 2019; 11:269-277. [PMID: 30525427 DOI: 10.1021/acsami.8b17555] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The porous microstructure of scaffolds is an essential consideration for tissue engineering, which plays an important role for cell adhesion, migration, and proliferation. It is crucial to choose optimum pore sizes of scaffolds for the treatment of various damaged tissues. Therefore, the proper porosity is the significant factor that should be considered when designing tissue scaffolds. Herein, we develop an improved emulsion template method to fabricate gelatin-based scaffolds with controllable pore structure. Gelatin droplets were first prepared by emulsification and then solidified by genipin to prepare gelatin microspheres. The microspheres were used as a template for the fabrication of porous scaffolds, which were gathered and tightened together by dialdehyde amylose. The results showed that emulsification can produce gelatin microspheres with narrow size distribution. The size of gelatin microspheres was easily controlled by adjusting the concentration of gelatin and the speed of mechanical agitation. The gelatin-based scaffolds presented macroporous and interconnected structure. It is interesting that the pore size of scaffolds was directly related to the size of gelatin microspheres, displaying the same trend of change in size. It indicated that the gelatin microspheres can be used as the proper template to fabricate gelatin-based scaffold with a desired pore structure. In addition, the gelatin-based scaffolds possessed good blood compatibility and cytocompatibility. Overall, the gelatin-based scaffolds exhibited great potential in tissue engineering.
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Affiliation(s)
- Lun Yuan
- Department of Pharmaceutics and Bioengineering, School of Chemical Engineering , Sichuan University , Chengdu 610065 , P. R. China
| | - Xinying Li
- College of Chemistry and Environment Protection Engineering , Southwest Minzu University , Chengdu 610041 , P. R. China
| | - Liming Ge
- Department of Pharmaceutics and Bioengineering, School of Chemical Engineering , Sichuan University , Chengdu 610065 , P. R. China
| | - Xiaoqi Jia
- Department of Pharmaceutics and Bioengineering, School of Chemical Engineering , Sichuan University , Chengdu 610065 , P. R. China
| | - Jinfeng Lei
- Department of Pharmaceutics and Bioengineering, School of Chemical Engineering , Sichuan University , Chengdu 610065 , P. R. China
| | - Changdao Mu
- Department of Pharmaceutics and Bioengineering, School of Chemical Engineering , Sichuan University , Chengdu 610065 , P. R. China
| | - Defu Li
- Department of Pharmaceutics and Bioengineering, School of Chemical Engineering , Sichuan University , Chengdu 610065 , P. R. China
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Gorgieva S, Vuherer T, Kokol V. Autofluorescence-aided assessment of integration and μ-structuring in chitosan/gelatin bilayer membranes with rapidly mineralized interface in relevance to guided tissue regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 93:226-241. [DOI: 10.1016/j.msec.2018.07.077] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 07/24/2018] [Accepted: 07/27/2018] [Indexed: 01/31/2023]
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48
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Gobinathan S, Zainol SS, Azizi SF, Iman NM, Muniandy R, Hasmad HN, Yusof MRB, Husain S, Abd Aziz H, Lokanathan Y. Decellularization and genipin crosslinking of amniotic membrane suitable for tissue engineering applications. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2018; 29:2051-2067. [PMID: 29983100 DOI: 10.1080/09205063.2018.1485814] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Amniotic membrane has the potential to be used as scaffold in various tissue engineering applications. However, increasing its biostability at the same time maintaining its biocompatibility is important to enhance its usage as a scaffold. This studied characteristics genipin-crosslinked amniotic membrane as a bioscaffold. Redundant human amniotic membranes (HAM) divided into native (nAM), decellularized (dAM) and genipin-crosslinked (clAM) groups. The dAM and clAM group were decellularized using thermolysin (TL) and sodium hydroxide (NaOH) solution. Next, clAM group was crosslinked with 0.5% and 1.0% (w/v) genipin. The HAM was then studied for in vitro degradation, percentage of swelling, optical clarity, ultrastructure and mechanical strength. Meanwhile, fibroblasts isolated from nasal turbinates were then seeded onto nAM, dAM and clAM for biocompatibility studies. clAM had the slowest degradation rate and were still morphologically intact after 30 days of incubation in 0.01% collagenase type 1 solution. The dAM had a significantly highest percentage of swelling than other groups (p < 0.05). Besides, the dAM retained the collagen content at similar level of nAM. Although the dAM had highest mechanical strength compared to the rest of the groups, the differences were statistically insignificant. Cell attachment on dAM and 0.5% clAM was higher compared to that on nAM and 1.0% clAM. In conclusion, clAM have better biostability and biocompatibility compared to the nAM and dAM. Together with other suitable characteristics of the clAM such as percentage of swelling, structural integrity and ECM content, clAM is suitable as scaffold for various tissue engineering applications.
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Affiliation(s)
- Sarumathi Gobinathan
- a Tissue Engineering Centre, Universiti Kebangsaan Malaysia Medical Centre , Universiti Kebangsaan Malaysia , Kuala Lumpur , Malaysia
| | - Siti Solehah Zainol
- a Tissue Engineering Centre, Universiti Kebangsaan Malaysia Medical Centre , Universiti Kebangsaan Malaysia , Kuala Lumpur , Malaysia
| | - Siti Fatmah Azizi
- a Tissue Engineering Centre, Universiti Kebangsaan Malaysia Medical Centre , Universiti Kebangsaan Malaysia , Kuala Lumpur , Malaysia
| | - Nabil Mohamad Iman
- a Tissue Engineering Centre, Universiti Kebangsaan Malaysia Medical Centre , Universiti Kebangsaan Malaysia , Kuala Lumpur , Malaysia
| | - Rajasegaran Muniandy
- a Tissue Engineering Centre, Universiti Kebangsaan Malaysia Medical Centre , Universiti Kebangsaan Malaysia , Kuala Lumpur , Malaysia
| | - Hanis Nazihah Hasmad
- a Tissue Engineering Centre, Universiti Kebangsaan Malaysia Medical Centre , Universiti Kebangsaan Malaysia , Kuala Lumpur , Malaysia
| | | | - Salina Husain
- c Department of Otorhinolaryngology-Head and Neck Surgery, Universiti Kebangsaan Malaysia Medical Centre , Universiti Kebangsaan Malaysia , Kuala Lumpur , Malaysia
| | - Haslinda Abd Aziz
- d Department of Obstetrics and Gynaecology, Faculty of Medicine Universiti Kebangsaan Malaysia Medical Centre , Universiti Kebangsaan Malaysia , Kuala Lumpur , Malaysia
| | - Yogeswaran Lokanathan
- a Tissue Engineering Centre, Universiti Kebangsaan Malaysia Medical Centre , Universiti Kebangsaan Malaysia , Kuala Lumpur , Malaysia
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Selestin Raja I, Thangam R, Fathima NN. Polymeric Micelle of a Gelatin-Oleylamine Conjugate: A Prominent Drug Delivery Carrier for Treating Triple Negative Breast Cancer Cells. ACS APPLIED BIO MATERIALS 2018; 1:1725-1734. [DOI: 10.1021/acsabm.8b00526] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Iruthayapandi Selestin Raja
- Inorganic and Physical Chemistry Laboratory, Central Leather Research Institute, Council of Scientific and Industrial Research, Adyar, Chennai 600020, India
| | - Ramar Thangam
- Inorganic and Physical Chemistry Laboratory, Central Leather Research Institute, Council of Scientific and Industrial Research, Adyar, Chennai 600020, India
| | - Nishter Nishad Fathima
- Inorganic and Physical Chemistry Laboratory, Central Leather Research Institute, Council of Scientific and Industrial Research, Adyar, Chennai 600020, India
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Dong X, Sun Z, Liang J, Wang H, Zhu D, Leng X, Wang C, Kong D, Lv F. A visible fluorescent nanovaccine based on functional genipin crosslinked ovalbumin protein nanoparticles. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2018; 14:1087-1098. [DOI: 10.1016/j.nano.2018.02.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 01/29/2018] [Accepted: 02/10/2018] [Indexed: 01/11/2023]
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