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Hybrid nanocomposite as a chest wall graft with improved vascularization by copper oxide nanoparticles. J Biomater Appl 2022; 36:1826-1837. [DOI: 10.1177/08853282211065624] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Chest wall repair can be necessary after tumor resection or chest injury. In order to cover or replace chest wall defects, autologous tissue or different synthetic materials are commonly used, among them the semi-rigid gold standard Gore-Tex® and prolene meshes. Synthetic tissues include composite materials with an organic and an inorganic component. On the basis of previously reported hybrid nanocomposite poly-lactic-co-glycolic acid amorphous calcium phosphate nanocomposite (PLGA/aCaP), a CuO component was incorporated to yield (60%/35%/5%). This graft was tested in vitro by seeding with murine adipose-derived stem cells (ASCs) for cell attachment and migration. The graft was compared to PLGA/CaCO3 and PLGA/hydroxyapatite, each providing the inorganic phase as nanoparticles. Further characterization of the graft was performed using scanning electron microscopy. Furthermore, PLGA/aCaP/CuO was implanted as a chest wall graft in mice. After 4 weeks, total cell density, graft integration, extracellular matrix components such as fibronectin and collagen I, the cellular inflammatory response (macrophages, F4/80 and lymphocytes, CD3) as well as vascularization (CD31) were quantitatively assessed. The nanocomposite PLGA/aCaP/CuO showed a good cell attachment and cells migrated well into the pores of the electrospun meshes. Cell densities did not differ between PLGA/aCaP/CuO and PLGA/CaCO3 or PLGA/hydroxyapatite, respectively. When applied as a chest wall graft, adequate stability for suturing into the thoracic wall could be achieved. Four weeks post-implantation, there was an excellent tissue integration without relevant fibrotic changes and a predominating collagen I matrix deposition within the graft. Slightly increased inflammation, reflected by increased infiltration of macrophages could be observed. Vascularization of the graft was significantly enhanced when compared with PLGA/aCaP (no CuO). We conclude that the hybrid nanocomposite PLGA/aCaP/CuO is a viable option to be used as a chest wall graft. Surgical implantation of the material is feasible and provides stability and enough flexibility. Proper tissue integration and an excellent vascularization are characteristics of this biodegradable material.
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2
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Ragothaman M, Kannan Villalan A, Dhanasekaran A, Palanisamy T. Bio-hybrid hydrogel comprising collagen-capped silver nanoparticles and melatonin for accelerated tissue regeneration in skin defects. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 128:112328. [PMID: 34474879 DOI: 10.1016/j.msec.2021.112328] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 06/29/2021] [Accepted: 07/18/2021] [Indexed: 01/22/2023]
Abstract
Hydrogel-based drug delivery systems have emerged as a promising platform for chronic tissue defects owing to their inherent ability to inhibit pathogenic infection and accelerate rapid tissue regeneration. Here, we fabricated a stable bio-hybrid hydrogel system comprising collagen, aminated xanthan gum, bio-capped silver nanoparticles and melatonin with antimicrobial, antioxidant and anti-inflammatory properties. Highly colloidal bio-capped silver nanoparticles were synthesized using collagen as a reducing cum stabilizing agent for the first time while aminated xanthan gum was synthesized using ethylenediamine treatment on xanthan gum. The synthesized bio-hybrid hydrogel exhibits better gelation, surface morphology, rheology and degelation properties. In vitro assessment of bio-hybrid hydrogel demonstrates excellent bactericidal efficiency against both common wound and multidrug-resistant pathogens and biocompatibility properties. In vivo animal studies demonstrate rapid tissue regeneration, collagen deposition and angiogenesis at the wound site predominantly due to the synergistic effect of silver nanoparticles and melatonin in the hydrogel. This study paves the way for developing biologically functional bio-nano hydrogel systems for promoting effective care for various ailments, including infected chronic wounds.
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Affiliation(s)
- Murali Ragothaman
- Centre for Biotechnology, Anna University, Chennai 600025, India; Advanced Materials Laboratory, Central Leather Research Institute (Council of Scientific and Industrial Research), Adyar, Chennai 600020, India
| | - Arivizhivendhan Kannan Villalan
- Advanced Materials Laboratory, Central Leather Research Institute (Council of Scientific and Industrial Research), Adyar, Chennai 600020, India
| | | | - Thanikaivelan Palanisamy
- Advanced Materials Laboratory, Central Leather Research Institute (Council of Scientific and Industrial Research), Adyar, Chennai 600020, India.
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Lopes SV, Collins MN, Reis RL, Oliveira JM, Silva-Correia J. Vascularization Approaches in Tissue Engineering: Recent Developments on Evaluation Tests and Modulation. ACS APPLIED BIO MATERIALS 2021; 4:2941-2956. [DOI: 10.1021/acsabm.1c00051] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Soraia V. Lopes
- 3B’s Research Group, Research Institute on Biomaterials, Biodegradables and Biomimetics, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, University of Minho, Guimarães 4805-017, Portugal
- ICVS/3B’s − PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Maurice N. Collins
- Bernal Institute, School of Engineering, University of Limerick, Limerick V94 T9PX, Ireland
| | - Rui L. Reis
- 3B’s Research Group, Research Institute on Biomaterials, Biodegradables and Biomimetics, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, University of Minho, Guimarães 4805-017, Portugal
- ICVS/3B’s − PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Joaquim M. Oliveira
- 3B’s Research Group, Research Institute on Biomaterials, Biodegradables and Biomimetics, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, University of Minho, Guimarães 4805-017, Portugal
- ICVS/3B’s − PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Joana Silva-Correia
- 3B’s Research Group, Research Institute on Biomaterials, Biodegradables and Biomimetics, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, University of Minho, Guimarães 4805-017, Portugal
- ICVS/3B’s − PT Government Associate Laboratory, Braga/Guimarães, Portugal
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Elnashar M, Vaccarezza M, Al-Salami H. Cutting-edge biotechnological advancement in islet delivery using pancreatic and cellular approaches. Future Sci OA 2020; 7:FSO660. [PMID: 33552541 PMCID: PMC7849926 DOI: 10.2144/fsoa-2020-0105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
There are approximately 1 billion prediabetic people worldwide, and the global cost for diabetes mellitus (DM) is estimated to be $825 billion. In regard to Type 1 DM, transplanting a whole pancreas or its islets has gained the attention of researchers in the last few decades. Recent studies showed that islet transplantation (ILT) containing insulin-producing β cells is the most notable advancement cure for Type 1 DM. However, this procedure has been hindered by shortage and lack of sufficient islet donors and the need for long-term immunosuppression of any potential graft rejection. The strategy of encapsulation may avoid the rejection of stem-cell-derived allogeneic islets or xenogeneic islets. This review article describes various biotechnology features in encapsulation-of-islet-cell therapy for humans, including the use of bile acids.
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Affiliation(s)
- Magdy Elnashar
- Biotechnology & Drug Development Research Laboratory, School of Pharmacy & Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia, Australia.,Centre of Excellence, Department of Polymers, National Research Centre, Cairo, Egypt
| | - Mauro Vaccarezza
- School of Pharmacy & Biomedical Science, Faculty of Health Sciences, Curtin University, Bentley, Perth, WA 6102, Australia
| | - Hani Al-Salami
- Biotechnology & Drug Development Research Laboratory, School of Pharmacy & Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia, Australia
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5
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Luo Z, Li J, Qu J, Sheng W, Yang J, Li M. Cationized Bombyx mori silk fibroin as a delivery carrier of the VEGF165-Ang-1 coexpression plasmid for dermal tissue regeneration. J Mater Chem B 2018; 7:80-94. [PMID: 32254952 DOI: 10.1039/c8tb01424h] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The angiogenesis of an implanted construct is among the most important issues in tissue engineering. In this study, spermine was used to modify Bombyx mori silk fibroin (BSF) to synthesize cationized BSF (CBSF). BSF and CBSF were coated in sequence on the surface of polyethyleneimine (PEI)/vascular endothelial growth factor 165/angiopoietin-1 coexpression plasmid DNA (pDNA) complexes to form CBSF/BSF/PEI/pDNA quaternary complexes. BSF scaffolds loaded with carrier/pDNA complexes were prepared as dermal regeneration scaffolds by freeze-drying. In one set of experiments, scaffolds were used to cover a chick embryo chorioallantoic membrane (CAM) to investigate the influence of carrier/pDNA complexes on angiogenesis; in another set of experiments, scaffolds were implanted into dorsal full-thickness wounds in Sprague-Dawley rats to evaluate the effect of carrier/pDNA complex-loaded BSF scaffolds on neovascularization and dermal tissue regeneration. After modification with spermine, the surface zeta potential value of BSF rose to +11 mV from an initial value of -9 mV, and the isoelectric point of BSF increased from 4.20 to 9.04. The in vitro transfection of human umbilical vein endothelial cells (EA.hy926) with quaternary complexes revealed that the CBSF/BSF/PEI/pDNA complexes clearly exhibited lower cytotoxicity and higher transfection efficiency than the PEI/pDNA complexes. The CAM assay showed a more abundant branching pattern of blood vessels in BSF scaffolds loaded with CBSF/BSF/PEI/pDNA complexes than in BSF scaffolds without complexes or loaded with PEI/pDNA complexes. The in vivo experimental results demonstrated that the incorporation of CBSF/BSF/PEI/pDNA complexes could effectively enhance angiogenesis in the implanted BSF scaffolds, thereby promoting the regeneration of dermal tissue, providing a new scaffold for the regeneration of dermal tissue and other tissues containing blood vessels.
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Affiliation(s)
- Zuwei Luo
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China.
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Thangavel P, Kannan R, Ramachandran B, Moorthy G, Suguna L, Muthuvijayan V. Development of reduced graphene oxide (rGO)-isabgol nanocomposite dressings for enhanced vascularization and accelerated wound healing in normal and diabetic rats. J Colloid Interface Sci 2018; 517:251-264. [PMID: 29428812 DOI: 10.1016/j.jcis.2018.01.110] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 01/30/2018] [Accepted: 01/31/2018] [Indexed: 01/24/2023]
Abstract
Treatment of chronic non-healing wounds in diabetes is still a major clinical challenge. Here, we have developed reduced graphene oxide (rGO) loaded isabgol nanocomposite scaffolds (Isab + rGO) to treat normal and diabetic wounds. rGO was synthesized by rapid reduction of graphene oxide (GO) under focused solar radiation. Then, rGO was uniformly dispersed into isabgol solution to prepare Isab + rGO nanocomposite scaffolds. These scaffolds were characterized using various physiochemical techniques. Isab + rGO nanocomposite scaffolds showed suitable cell viability, proliferation, and attachment. In vivo experiments were performed using Wistar rats to study the wound healing efficacy of these scaffolds in normal and diabetic rats. Results revealed that rGO stimulated collagen synthesis, collagen crosslinking, wound contraction, and reduced the wound re-epithelialization time significantly compared to control. Histology and immunohistochemistry analyses showed that Isab + rGO scaffold treatment enhanced angiogenesis, collagen synthesis, and deposition in treated wounds. Isab + rGO scaffold treatment also played a major role in shortening the inflammation phase and recruiting macrophages to enhance the early phase of wound healing. Overall, this investigation showed that Isab + rGO scaffold dressing could significantly accelerate the healing of normal and diabetic wounds.
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Affiliation(s)
- Ponrasu Thangavel
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India
| | - Ramya Kannan
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India; Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Balaji Ramachandran
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India
| | - Ganeshkumar Moorthy
- The School of Pharmacy, Faculty of Medicine, The Hebrew University of Jerusalem, Ein Karem, P.O.Box 12065, Jerusalem 9112102, Israel
| | - Lonchin Suguna
- Department of Biochemistry and Biotechnology, CSIR-Central Leather Research Institute, Adyar, Chennai 600020, India
| | - Vignesh Muthuvijayan
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India.
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In vivo efficiency of the collagen coated nanofibrous scaffold and their effect on growth factors and pro-inflammatory cytokines in wound healing. Eur J Pharmacol 2017; 814:45-55. [DOI: 10.1016/j.ejphar.2017.08.003] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2017] [Revised: 07/29/2017] [Accepted: 08/03/2017] [Indexed: 12/11/2022]
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8
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Li J, Jahr H, Zheng W, Ren PG. Visualizing Angiogenesis by Multiphoton Microscopy In Vivo in Genetically Modified 3D-PLGA/nHAp Scaffold for Calvarial Critical Bone Defect Repair. J Vis Exp 2017. [PMID: 28930985 DOI: 10.3791/55381] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
The reconstruction of critically sized bone defects remains a serious clinical problem because of poor angiogenesis within tissue-engineered scaffolds during repair, which gives rise to a lack of sufficient blood supply and causes necrosis of the new tissues. Rapid vascularization is a vital prerequisite for new tissue survival and integration with existing host tissue. The de novo generation of vasculature in scaffolds is one of the most important steps in making bone regeneration more efficient, allowing repairing tissue to grow into a scaffold. To tackle this problem, the genetic modification of a biomaterial scaffold is used to accelerate angiogenesis and osteogenesis. However, visualizing and tracking in vivo blood vessel formation in real-time and in three-dimensional (3D) scaffolds or new bone tissue is still an obstacle for bone tissue engineering. Multiphoton microscopy (MPM) is a novel bio-imaging modality that can acquire volumetric data from biological structures in a high-resolution and minimally-invasive manner. The objective of this study was to visualize angiogenesis with multiphoton microscopy in vivo in a genetically modified 3D-PLGA/nHAp scaffold for calvarial critical bone defect repair. PLGA/nHAp scaffolds were functionalized for the sustained delivery of a growth factor pdgf-b gene carrying lentiviral vectors (LV-pdgfb) in order to facilitate angiogenesis and to enhance bone regeneration. In a scaffold-implanted calvarial critical bone defect mouse model, the blood vessel areas (BVAs) in PHp scaffolds were significantly higher than in PH scaffolds. Additionally, the expression of pdgf-b and angiogenesis-related genes, vWF and VEGFR2, increased correspondingly. MicroCT analysis indicated that the new bone formation in the PHp group dramatically improved compared to the other groups. To our knowledge, this is the first time multiphoton microscopy was used in bone tissue-engineering to investigate angiogenesis in a 3D bio-degradable scaffold in vivo and in real-time.
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Affiliation(s)
- Jian Li
- Center for Translational Medicine Research and Development, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences
| | - Holger Jahr
- Department of Orthopedic Surgery, Maastricht UMC+; Department of Orthopaedic Surgery, University Hospital RWTH
| | - Wei Zheng
- Research Laboratory for Biomedical Optics and Molecular Imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences;
| | - Pei-Gen Ren
- Center for Translational Medicine Research and Development, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences;
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Harrington S, Williams J, Rawal S, Ramachandran K, Stehno-Bittel L. Hyaluronic Acid/Collagen Hydrogel as an Alternative to Alginate for Long-Term Immunoprotected Islet Transplantation<sup/>. Tissue Eng Part A 2017; 23:1088-1099. [PMID: 28142500 DOI: 10.1089/ten.tea.2016.0477] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Alginate has long been the material of choice for immunoprotection of islets due to its low cost and ability to easily form microspheres. Unfortunately, this seaweed-derived material is notoriously prone to fibrotic overgrowth in vivo, resulting in premature graft failure. The purpose of this study was to test an alternative, hyaluronic acid (HA-COL), for in vitro function, viability, and allogeneic islet transplant outcomes in diabetic rats. In vitro studies indicated that the HA-COL gel had diffusion characteristics that would allow small molecules such as glucose and insulin to enter and exit the gel, whereas larger molecules (70 and 500 kDa dextrans) were impeded from diffusing past the gel edge in 24 h. Islets encapsulated in HA-COL hydrogel showed significantly improved in vitro viability over unencapsulated islets and retained their morphology and glucose sensitivity for 28 days. When unencapsulated allogeneic islet transplants were administered to the omentum of outbred rats, they initially were normoglycemic, but by 11 days returned to hyperglycemia. Immunohistological examination of the grafts and surrounding tissue indicated strong graft rejection. By comparison, when using the same outbred strain of rats, allogeneic transplantation of islets within the HA-COL gel reversed long-term diabetes and prevented graft rejection in all animals. Animals were sacrificed at 40, 52, 64, and 80 weeks for evaluation, and all were non-diabetic at sacrifice. Explanted grafts revealed viable islets in the transplant site as well as intact hydrogel, with little or no evidence of fibrotic overgrowth or cellular rejection. The results of these studies demonstrate great potential for HA-COL hydrogel as an alternative to sodium alginate for long-term immunoprotected islet transplantation.
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Affiliation(s)
- Stephen Harrington
- 1 School of Engineering, University of Kansas , Lawrence, Kansas.,2 University of Kansas Medical Center , Kansas City, Kansas.,3 Likarda, LLC, Kansas City, Kansas
| | - Janette Williams
- 2 University of Kansas Medical Center , Kansas City, Kansas.,3 Likarda, LLC, Kansas City, Kansas
| | - Sonia Rawal
- 2 University of Kansas Medical Center , Kansas City, Kansas
| | | | - Lisa Stehno-Bittel
- 1 School of Engineering, University of Kansas , Lawrence, Kansas.,2 University of Kansas Medical Center , Kansas City, Kansas.,3 Likarda, LLC, Kansas City, Kansas
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10
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Augustine R, Nethi SK, Kalarikkal N, Thomas S, Patra CR. Electrospun polycaprolactone (PCL) scaffolds embedded with europium hydroxide nanorods (EHNs) with enhanced vascularization and cell proliferation for tissue engineering applications. J Mater Chem B 2017; 5:4660-4672. [DOI: 10.1039/c7tb00518k] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
PCL-EHNs scaffolds enhance endothelial cell proliferation, adhesion and blood vessel formation in a VEGFR2/Akt dependent signaling cascade.
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Affiliation(s)
- Robin Augustine
- School of Nano Science and Technology
- National Institute of Technology Calicut
- Kozhikode
- India
| | - Susheel Kumar Nethi
- Department of Chemical Biology
- CSIR-Indian Institute of Chemical Technology
- Hyderabad – 500007
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Nandakumar Kalarikkal
- International and Inter University Centre for Nanoscience and Nanotechnology
- Mahatma Gandhi University
- Kottayam – 686 560
- India
- School of Pure and Applied Physics
| | - Sabu Thomas
- International and Inter University Centre for Nanoscience and Nanotechnology
- Mahatma Gandhi University
- Kottayam – 686 560
- India
- School of Chemical Sciences
| | - Chitta Ranjan Patra
- Department of Chemical Biology
- CSIR-Indian Institute of Chemical Technology
- Hyderabad – 500007
- India
- Academy of Scientific and Innovative Research (AcSIR)
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11
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Ramanathan G, Singaravelu S, Muthukumar T, Thyagarajan S, Perumal PT, Sivagnanam UT. Design and characterization of 3D hybrid collagen matrixes as a dermal substitute in skin tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 72:359-370. [PMID: 28024598 DOI: 10.1016/j.msec.2016.11.095] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Revised: 11/10/2016] [Accepted: 11/21/2016] [Indexed: 10/20/2022]
Abstract
The highly interconnected porous dressing material was fabricated with the utilization of novel collagen (COL-SPG) for the efficient healing of the wound. Herein, we report the fabrication of 3D collagen impregnated with bioactive extract (COL-SPG-CPE) to get rid of infection at the wound site. The resultant 3D collagen matrix was characterized physiochemically using Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and mechanical property. The dressing substrate possesses the high swelling ability, increase in the porosity, in vitro enzymatic degradability and antibacterial property. The in vitro biocompatibility and fluorescence activity of the collagen scaffold against both NIH 3T3 fibroblast and Human keratinocyte (HaCaT) cell lines assisted in excellent cell adhesion and proliferation over the collagen matrix. Furthermore, the in vivo evaluation of the COL-SPG-CPE 3D sponge exhibited with enhanced collagen synthesis and aids in faster reepithelialization. However, the rate of wound healing was influenced by the expression of vascular endothelial growth factor (VEGF), epidermal growth factor (EGF) and transforming growth factor (TGF-β) growth factors promotes the collagen synthesis, thereby increases the healing efficiency. Based on the results, COL-SPG-CPE has a potential ability in the remodeling of the wound with the 3D collagen as wound dressing material.
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Affiliation(s)
- Giriprasath Ramanathan
- Bioproducts Lab, CSIR-Central Leather Research Institute, Chennai 600020, Tamilnadu, India
| | - Sivakumar Singaravelu
- Bioproducts Lab, CSIR-Central Leather Research Institute, Chennai 600020, Tamilnadu, India
| | - Thangavelu Muthukumar
- Department of Physiology, College of Veterinary Medicine, Chonbuk National University, 79 Gobong-ro, Iksan-city, Jeollabuk-Do 570-752, Republic of Korea
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12
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Takei T, Sakai S, Yoshida M. In vitro formation of vascular-like networks using hydrogels. J Biosci Bioeng 2016; 122:519-527. [DOI: 10.1016/j.jbiosc.2016.03.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Revised: 03/22/2016] [Accepted: 03/29/2016] [Indexed: 01/19/2023]
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13
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Singaravelu S, Ramanathan G, Muthukumar T, Raja MD, Nagiah N, Thyagarajan S, Aravinthan A, P G, Natarajan TS, V N Geetha Selva G, Kim JH, Sivagnanam UT. Durable keratin-based bilayered electrospun mats for wound closure. J Mater Chem B 2016; 4:3982-3997. [PMID: 32263097 DOI: 10.1039/c6tb00720a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A bilayered nanofibrous scaffold with rapid wound healing properties is found to be suitable for tissue regeneration applications. The objective of this study is to reveal the fabrication of a poly(3-hydroxybutyric acid) (P)-gelatin (G) nanofibrous mat through electrospinning, with a horn keratin-chitosan-based biosheet (KC) as a bilayered nanofibrous scaffold. The mupirocin (D)-loaded horn KC biosheet (KCD) acts as the primary layer over which PG nanofibers were electrospun to act as the secondary layer. It is shown that this engineered bilayered nanofibrous scaffold material (KC-PG) should fulfill the functions of the extracellular matrix (ECM) by elucidating its function in vitro and in vivo. The bilayered nanofibrous scaffold was designed to exhibit improved physiochemical, biological and mechanical properties, with better swelling and porosity for enhanced oxygen permeability, and it also exhibits an acceptable antibacterial property to prevent infection at the wound site. The bilayered nanofibrous scaffold assists in better biocompatibility towards fibroblast and keratinocyte cell lines. The morphology of the nanofibrous scaffold aids increased cell adhesion and proliferation with cell material interactions. This was elucidated with the help of in vitro fluorescence staining against both cell lines. The bilayered KCD-PG nanofibrous scaffold material gives accelerated wound healing efficiency during in vivo wound healing. The results showed the regulation of growth factors with enhanced collagen synthesis, thereby helping in faster wound healing.
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Affiliation(s)
- Sivakumar Singaravelu
- Bioproducts Lab, CSIR-Central Leather Research Institute, Chennai 600020, Tamilnadu, India.
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14
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Murali R, Thanikaivelan P. Bionic, porous, functionalized hybrid scaffolds with vascular endothelial growth factor promote rapid wound healing in Wistar albino rats. RSC Adv 2016. [DOI: 10.1039/c5ra27571g] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Biomimetic collagen-poly(dialdehyde) locust bean gum based hybrid scaffolds synergistically combined with vascular endothelial growth factor were prepared to regenerate tissue formation for wound healing applications.
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Affiliation(s)
- Ragothaman Murali
- Advanced Materials Laboratory
- Centre for Leather Apparel & Accessories Development
- Central Leather Research Institute (Council of Scientific and Industrial Research)
- Chennai 600020
- India
| | - Palanisamy Thanikaivelan
- Advanced Materials Laboratory
- Centre for Leather Apparel & Accessories Development
- Central Leather Research Institute (Council of Scientific and Industrial Research)
- Chennai 600020
- India
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15
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Murali R, Thanikaivelan P, Cheirmadurai K. Melatonin in functionalized biomimetic constructs promotes rapid tissue regeneration in Wistar albino rats. J Mater Chem B 2016; 4:5850-5862. [DOI: 10.1039/c6tb01221c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Biomimetic collagen–poly(dialdehyde) gum acacia based hybrid scaffolds with a synergistic combination of melatonin were prepared to regenerate tissue formation in wound-healing applications.
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Affiliation(s)
- Ragothaman Murali
- Advanced Materials Laboratory
- Central Leather Research Institute (Council of Scientific and Industrial Research)
- Chennai 600020
- India
| | - Palanisamy Thanikaivelan
- Advanced Materials Laboratory
- Central Leather Research Institute (Council of Scientific and Industrial Research)
- Chennai 600020
- India
| | - Kalirajan Cheirmadurai
- Advanced Materials Laboratory
- Central Leather Research Institute (Council of Scientific and Industrial Research)
- Chennai 600020
- India
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