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Krishna DV, Sankar MR, Sarma PVGK, Samundeshwari EL. Copper nanoparticles loaded gelatin/ polyvinyl alcohol/ guar gum-based 3D printable multimaterial hydrogel for tissue engineering applications. Int J Biol Macromol 2024; 276:133866. [PMID: 39009268 DOI: 10.1016/j.ijbiomac.2024.133866] [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: 04/04/2024] [Revised: 07/01/2024] [Accepted: 07/11/2024] [Indexed: 07/17/2024]
Abstract
Hydrogels are becoming increasingly significant in tissue engineering because of their numerous benefits, including biocompatibility, biodegradability, and their ability to provide a supportive structure for cell proliferation. This study presents the synthesis and characterization of a new multimaterial hydrogel with 3D-printing capabilities composed of copper nanoparticle-reinforced gelatin, polyvinyl alcohol (PVA), and guar gum-based biomaterials intended for tissue engineering applications. Combining CuNPs aims to enhance the hydrogel's antibacterial properties, mechanical strength, and bioactivity, which are essential for successful tissue regeneration. Hydrogels are chemically cross-linked with glyoxal and analyzed through different assessments to examine the compressive behavior, surface morphology, sorbing capacity, biocompatibility, thermal stability, and degradation properties. The results demonstrated that including CuNPs significantly improved the hydrogel's compressive modulus (4.18 MPa) for the hydrogel with the CuNPs and provided better antibacterial activity against common pathogens with controlled degradation. All the hydrogels exhibited a lower coefficient of friction, which was below 0.1. In vitro cell culture studies using chondrocytes indicated that the CuNPs-loaded hydrogel supported cell proliferation and growth of chondrogenic genes such as collagen type II (COL2) and aggrecan (ACAN). The biocompatibility and enhanced mechanical properties of the multimaterial hydrogel make it a promising candidate for developing customized, patient-specific tissue engineering scaffolds.
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Affiliation(s)
- D V Krishna
- Department of Mechanical Engineering, Indian Institute of Technology Tirupati, Andhra Pradesh 517619, India
| | - M R Sankar
- Department of Mechanical Engineering, Indian Institute of Technology Tirupati, Andhra Pradesh 517619, India.
| | - P V G K Sarma
- Department of Biotechnology, Sri Venkateswara Institute of Medical Sciences, Tirupati, Andhra Pradesh 517502, India
| | - E L Samundeshwari
- Department of Biotechnology, Sri Venkateswara Institute of Medical Sciences, Tirupati, Andhra Pradesh 517502, India
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2
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Yao C, Pripatnanont P, Zhang J, Suttapreyasri S. Fabrication and characterization of a bioactive composite scaffold based on polymeric collagen/gelatin/nano β-TCP for alveolar bone regeneration. J Mech Behav Biomed Mater 2024; 153:106500. [PMID: 38484429 DOI: 10.1016/j.jmbbm.2024.106500] [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: 12/12/2023] [Revised: 02/26/2024] [Accepted: 03/08/2024] [Indexed: 03/26/2024]
Abstract
One strategy to correct alveolar bone defects is use of bioactive bone substitutes to maintain the structure of defect site and facilitate cells and vessels' ingrowth. This study aimed to fabricate and characterize the freeze-dried bone regeneration scaffolds composed of polymeric Type I collagen, nano Beta-tricalcium phosphate (β-TCP), and gelatin. The stable structures of scaffolds were obtained by thermal crosslinking and EDC/NHS ((1-ethyl-3-(3-dimethylaminopropyl) carbodiimide)/(N-hydroxysuccinimide)) chemical crosslinking processes. Subsequently, the physicochemical and biological properties of the scaffolds were characterized and assessed. The results indicated the bioactive composite scaffolds containing 10% and 20% (w/v) nano β-TCP exhibited suitable porosity (84.45 ± 25.43 nm, and 94.51 ± 14.69 nm respectively), a rapid swelling property (reaching the maximum swelling rate at 1 h), excellent degradation resistance (residual mass percentage of scaffolds higher than 80% on day 90 in PBS and Type I collagenase solution respectively), and sustained calcium release capabilities. Moreover, they displayed outstanding biological properties, including superior cell viability, cell adhesion, and cell proliferation. Additionally, the scaffolds containing 10% and 20% (w/v) nano β-TCP could promote the osteogenic differentiation of MC3T3-E1. Therefore, the bioactive composite scaffolds containing 10% and 20% (w/v) nano β-TCP could be further studied for being used to treat alveolar bone defects in vivo.
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Affiliation(s)
- Chao Yao
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Prince of Songkla University, Hat Yai, 90112, Thailand
| | - Prisana Pripatnanont
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Prince of Songkla University, Hat Yai, 90112, Thailand
| | - Junbiao Zhang
- Orthodontic Section, Department of Preventive Dentistry, Faculty of Dentistry, Prince of Songkla University, Hat Yai, 90112, Songkhla, Thailand; Guiyang Hospital of Stomatology, Guiyang, 550002, People's Republic of China
| | - Srisurang Suttapreyasri
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Prince of Songkla University, Hat Yai, 90112, Thailand.
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3
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Ozkendir O, Karaca I, Cullu S, Erdoğan OC, Yaşar HN, Dikici S, Owen R, Aldemir Dikici B. Engineering periodontal tissue interfaces using multiphasic scaffolds and membranes for guided bone and tissue regeneration. BIOMATERIALS ADVANCES 2024; 157:213732. [PMID: 38134730 DOI: 10.1016/j.bioadv.2023.213732] [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: 10/22/2023] [Revised: 12/06/2023] [Accepted: 12/11/2023] [Indexed: 12/24/2023]
Abstract
Periodontal diseases are one of the greatest healthcare burdens worldwide. The periodontal tissue compartment is an anatomical tissue interface formed from the periodontal ligament, gingiva, cementum, and bone. This multifaceted composition makes tissue engineering strategies challenging to develop due to the interface of hard and soft tissues requiring multiphase scaffolds to recreate the native tissue architecture. Multilayer constructs can better mimic tissue interfaces due to the individually tuneable layers. They have different characteristics in each layer, with modulation of mechanical properties, material type, porosity, pore size, morphology, degradation properties, and drug-releasing profile all possible. The greatest challenge of multilayer constructs is to mechanically integrate consecutive layers to avoid delamination, especially when using multiple manufacturing processes. Here, we review the development of multilayer scaffolds that aim to recapitulate native periodontal tissue interfaces in terms of physical, chemical, and biological characteristics. Important properties of multiphasic biodegradable scaffolds are highlighted and summarised, with design requirements, biomaterials, and fabrication methods, as well as post-treatment and drug/growth factor incorporation discussed.
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Affiliation(s)
- Ozgu Ozkendir
- Department of Bioengineering, Izmir Institute of Technology, Urla, Izmir 35433, Turkey
| | - Ilayda Karaca
- Department of Bioengineering, Izmir Institute of Technology, Urla, Izmir 35433, Turkey
| | - Selin Cullu
- Department of Bioengineering, Izmir Institute of Technology, Urla, Izmir 35433, Turkey
| | - Oğul Can Erdoğan
- Department of Molecular Biology and Genetics, Izmir Institute of Technology, Urla, Izmir 35433, Turkey
| | - Hüsniye Nur Yaşar
- Department of Molecular Biology and Genetics, Izmir Institute of Technology, Urla, Izmir 35433, Turkey
| | - Serkan Dikici
- Department of Bioengineering, Izmir Institute of Technology, Urla, Izmir 35433, Turkey
| | - Robert Owen
- School of Pharmacy, University of Nottingham Biodiscovery Institute, University of Nottingham, Nottingham NG7 2RD, United Kingdom
| | - Betül Aldemir Dikici
- Department of Bioengineering, Izmir Institute of Technology, Urla, Izmir 35433, Turkey.
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4
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Carriero VC, Di Muzio L, Petralito S, Casadei MA, Paolicelli P. Cryogel Scaffolds for Tissue-Engineering: Advances and Challenges for Effective Bone and Cartilage Regeneration. Gels 2023; 9:979. [PMID: 38131965 PMCID: PMC10742915 DOI: 10.3390/gels9120979] [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: 11/14/2023] [Revised: 12/07/2023] [Accepted: 12/12/2023] [Indexed: 12/23/2023] Open
Abstract
Critical-sized bone defects and articular cartilage injuries resulting from trauma, osteonecrosis, or age-related degeneration can be often non-healed by physiological repairing mechanisms, thus representing a relevant clinical issue due to a high epidemiological incidence rate. Novel tissue-engineering approaches have been proposed as an alternative to common clinical practices. This cutting-edge technology is based on the combination of three fundamental components, generally referred to as the tissue-engineering triad: autologous or allogenic cells, growth-stimulating factors, and a scaffold. Three-dimensional polymer networks are frequently used as scaffolds to allow cell proliferation and tissue regeneration. In particular, cryogels give promising results for this purpose, thanks to their peculiar properties. Cryogels are indeed characterized by an interconnected porous structure and a typical sponge-like behavior, which facilitate cellular infiltration and ingrowth. Their composition and the fabrication procedure can be appropriately tuned to obtain scaffolds that match the requirements of a specific tissue or organ to be regenerated. These features make cryogels interesting and promising scaffolds for the regeneration of different tissues, including those characterized by very complex mechanical and physical properties, such as bones and joints. In this review, state-of-the-art fabrication and employment of cryogels for supporting effective osteogenic or chondrogenic differentiation to allow for the regeneration of functional tissues is reported. Current progress and challenges for the implementation of this technology in clinical practice are also highlighted.
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Affiliation(s)
| | | | | | | | - Patrizia Paolicelli
- Department of Drug Chemistry and Technologies, Sapienza University of Rome, 00185 Rome, Italy; (V.C.C.); (L.D.M.); (S.P.); (M.A.C.)
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5
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Olevsky LM, Anup A, Jacques M, Keokominh N, Holmgren EP, Hixon KR. Direct Integration of 3D Printing and Cryogel Scaffolds for Bone Tissue Engineering. Bioengineering (Basel) 2023; 10:889. [PMID: 37627774 PMCID: PMC10451777 DOI: 10.3390/bioengineering10080889] [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: 06/30/2023] [Revised: 07/21/2023] [Accepted: 07/24/2023] [Indexed: 08/27/2023] Open
Abstract
Cryogels, known for their biocompatibility and porous structure, lack mechanical strength, while 3D-printed scaffolds have excellent mechanical properties but limited porosity resolution. By combining a 3D-printed plastic gyroid lattice scaffold with a chitosan-gelatin cryogel scaffold, a scaffold can be created that balances the advantages of both fabrication methods. This study compared the pore diameter, swelling potential, mechanical characteristics, and cellular infiltration capability of combined scaffolds and control cryogels. The incorporation of the 3D-printed lattice demonstrated patient-specific geometry capabilities and significantly improved mechanical strength compared to the control cryogel. The combined scaffolds exhibited similar porosity and relative swelling ratio to the control cryogels. However, they had reduced elasticity, reduced absolute swelling capacity, and are potentially cytotoxic, which may affect their performance. This paper presents a novel approach to combine two scaffold types to retain the advantages of each scaffold type while mitigating their shortcomings.
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Affiliation(s)
- Levi M. Olevsky
- Thayer School of Engineering, Dartmouth College, Hanover, NH 03755, USA; (L.M.O.); (A.A.)
| | - Amritha Anup
- Thayer School of Engineering, Dartmouth College, Hanover, NH 03755, USA; (L.M.O.); (A.A.)
| | - Mason Jacques
- College of Engineering and Physical Sciences, University of New Hampshire, Durham, NH 03824, USA; (M.J.); (N.K.)
| | - Nadia Keokominh
- College of Engineering and Physical Sciences, University of New Hampshire, Durham, NH 03824, USA; (M.J.); (N.K.)
| | - Eric P. Holmgren
- Geisel School of Medicine, Dartmouth College, Hanover, NH 03755, USA;
| | - Katherine R. Hixon
- Thayer School of Engineering, Dartmouth College, Hanover, NH 03755, USA; (L.M.O.); (A.A.)
- Geisel School of Medicine, Dartmouth College, Hanover, NH 03755, USA;
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6
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Pepe A, Laezza A, Ostuni A, Scelsi A, Laurita A, Bochicchio B. Bioconjugation of Carbohydrates to Gelatin Sponges Promoting 3D Cell Cultures. Biomimetics (Basel) 2023; 8:biomimetics8020193. [PMID: 37218779 DOI: 10.3390/biomimetics8020193] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 04/28/2023] [Accepted: 05/02/2023] [Indexed: 05/24/2023] Open
Abstract
Gelatin sponges are widely employed as hemostatic agents, and are gaining increasing interest as 3D scaffolds for tissue engineering. To broaden their possible application in the field of tissue engineering, a straightforward synthetic protocol able to anchor the disaccharides, maltose and lactose, for specific cell interactions was developed. A high conjugation yield was confirmed by 1H-NMR and FT-IR spectroscopy, and the morphology of the resulting decorated sponges was characterized by SEM. After the crosslinking reaction, the sponges preserve their porous structure as ascertained by SEM. Finally, HepG2 cells cultured on the decorated gelatin sponges show high viability and significant differences in the cellular morphology as a function of the conjugated disaccharide. More spherical morphologies are observed when cultured on maltose-conjugated gelatin sponges, while a more flattened aspect is discerned when cultured onto lactose-conjugated gelatin sponges. Considering the increasing interest in small-sized carbohydrates as signaling cues on biomaterial surfaces, systematic studies on how small carbohydrates might influence cell adhesion and differentiation processes could take advantage of the described protocol.
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Affiliation(s)
- Antonietta Pepe
- Laboratory of Protein-Inspired Biomaterials, Department of Science, University of Basilicata, Via Ateneo Lucano, 10, 85100 Potenza, Italy
| | - Antonio Laezza
- Laboratory of Protein-Inspired Biomaterials, Department of Science, University of Basilicata, Via Ateneo Lucano, 10, 85100 Potenza, Italy
| | - Angela Ostuni
- Cellular Biochemistry Laboratory, Department of Science, University of Basilicata, Via Ateneo Lucano, 10, 85100 Potenza, Italy
| | - Alessandra Scelsi
- Laboratory of Protein-Inspired Biomaterials, Department of Science, University of Basilicata, Via Ateneo Lucano, 10, 85100 Potenza, Italy
| | - Alessandro Laurita
- Microscopy Area, Department of Science, University of Basilicata, Via Ateneo Lucano, 10, 85100 Potenza, Italy
| | - Brigida Bochicchio
- Laboratory of Protein-Inspired Biomaterials, Department of Science, University of Basilicata, Via Ateneo Lucano, 10, 85100 Potenza, Italy
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7
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Canatar İ, Zenger O, Özdaş S, Baydemir Peşint G. Pterostilbene loaded poly(vinyl alcohol)-gelatin cryogels as potential bioactive wound dressing material. J Biomed Mater Res B Appl Biomater 2023; 111:1259-1270. [PMID: 36863724 DOI: 10.1002/jbm.b.35230] [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: 09/06/2022] [Revised: 01/02/2023] [Accepted: 01/30/2023] [Indexed: 03/04/2023]
Abstract
Cryogels are support materials which are good at mimicking extracellular matrix due to their excellent hydrophilicity, biocompatibility, and macroporous structure, thus they are useful in facilitating cell activities during healing process. In this study, polyvinyl alcohol-gelatin (PVA-Gel) based cryogel membranes loaded with pterostilbene (trans-3,5-dimethoxy-4-hydroxystilbene; PTS) (PVA-Gel/PTS) was synthesized as wound dressing materials. PVA-Gel and PVA-Gel/PTS were synthesized with the polymerization yields of 96% ± 0.23% and 98% ± 0.18%, respectively, and characterized by swelling tests, Brunauer-Emmett-Teller (BET) and scanning electron microscopy (SEM) analysis. The swelling ratios were calculated as 98.6% ± 4.93% and 102% ± 5.1%, macroporosities were determined as 85% ± 2.13% and 88% ± 2.2%, for PVA-Gel and PVA-Gel/PTS, respectively. It was determined that PVA-Gel and PVA-Gel/PTS have 17 m2 /g ± 0.76 m2 /g and 20 m2 /g ± 0.92 m2 /g surface areas, respectively. SEM studies were demonstrated that they have ~100 μm pore sizes. According to 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), trypan blue exclusion and live-dead assay results, it was observed that cell proliferation, cell number and cell viability were higher in PVA-Gel/PTS cryogel at 24, 48, and 72 h compared to PVA-Gel. A strong and transparent fluorescent light intensity was observed indicating higher cell population in PVA-Gel/PTS in comparison with PVA-Gel, according to 4',6-diamidino-2-phenylindole (DAPI) staining. SEM, F-Actin, Giemsa staining and inverted-phase microscope image of fibroblasts in PVA-Gel/PTS cryogels revealed that dense fibroblast proliferation and spindle-shaped morphology of cells were preserved. Moreover, DNA agarose gel data demonstrated that PVA-Gel/PTS cryogels had no effect on DNA integrity. Consequently, produced PVA-Gel/PTS cryogel can be used as wound dressing material to promote wound therapies, inducing cell viability and proliferation.
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Affiliation(s)
- İpek Canatar
- Faculty of Engineering Sciences, Department of Bioengineering, Adana Alpaslan Türkeş Science and Technology University, Adana, Turkey
| | - Okan Zenger
- Faculty of Engineering Sciences, Department of Bioengineering, Adana Alpaslan Türkeş Science and Technology University, Adana, Turkey
| | - Sibel Özdaş
- Faculty of Engineering Sciences, Department of Bioengineering, Adana Alpaslan Türkeş Science and Technology University, Adana, Turkey
| | - Gözde Baydemir Peşint
- Faculty of Engineering Sciences, Department of Bioengineering, Adana Alpaslan Türkeş Science and Technology University, Adana, Turkey
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8
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Babanejad N, Mfoafo K, Thumma A, Omidi Y, Omidian H. Advances in cryostructures and their applications in biomedical and pharmaceutical products. Polym Bull (Berl) 2023. [DOI: 10.1007/s00289-023-04683-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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9
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Cryostructuring of Polymeric Systems: 63. † Synthesis of Two Chemically Tanned Gelatin-Based Cryostructurates and Evaluation of Their Potential as Scaffolds for Culturing of Mammalian Cells. Gels 2022; 8:gels8110695. [DOI: 10.3390/gels8110695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/22/2022] [Accepted: 10/25/2022] [Indexed: 11/17/2022] Open
Abstract
Various gelatin-containing gel materials are used as scaffolds for animal and human cell culturing within the fields of cell technologies and tissue engineering. Cryostructuring is a promising technique for the preparation of efficient macroporous scaffolds in biomedical applications. In the current study, two new gelatin-based cryostructurates were synthesized, their physicochemical properties and microstructure were evaluated, and their ability to serve as biocompatible scaffolds for mammalian cells culturing was tested. The preparation procedure included the dissolution of Type A gelatin in water, the addition of urea to inhibit self-gelation, the freezing of such a solution, ice sublimation in vacuo, and urea extraction with ethanol from the freeze-dried matter followed by its cross-linking in an ethanol medium with either carbodiimide or glyoxal. It was shown that in the former case, a denser cross-linked polymer phase was formed, while in the latter case, the macropores in the resultant biopolymer material were wider. The subsequent biotesting of these scaffolds demonstrated their biocompatibility for human mesenchymal stromal cells and HepG2 cells during subcutaneous implantation in rats. Albumin secretion and urea synthesis by HepG2 cells confirmed the possibility of using gelatin cryostructurates for liver tissue engineering.
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10
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Wang R, Guo T, Li J. Mechanisms of Peritoneal Mesothelial Cells in Peritoneal Adhesion. Biomolecules 2022; 12:biom12101498. [PMID: 36291710 PMCID: PMC9599397 DOI: 10.3390/biom12101498] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 10/08/2022] [Accepted: 10/14/2022] [Indexed: 11/24/2022] Open
Abstract
A peritoneal adhesion (PA) is a fibrotic tissue connecting the abdominal or visceral organs to the peritoneum. The formation of PAs can induce a variety of clinical diseases. However, there is currently no effective strategy for the prevention and treatment of PAs. Damage to peritoneal mesothelial cells (PMCs) is believed to cause PAs by promoting inflammation, fibrin deposition, and fibrosis formation. In the early stages of PA formation, PMCs undergo mesothelial–mesenchymal transition and have the ability to produce an extracellular matrix. The PMCs may transdifferentiate into myofibroblasts and accelerate the formation of PAs. Therefore, the aim of this review was to understand the mechanism of action of PMCs in PAs, and to offer a theoretical foundation for the treatment and prevention of PAs.
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Affiliation(s)
- Ruipeng Wang
- The First School of Clinical Medical, Gansu University of Chinese Medicine, Lanzhou 730030, China
| | - Tiankang Guo
- Department of General Surgery, Gansu Provincial Hospital, Lanzhou 730030, China
- The First School of Clinical Medicine, Lanzhou University, Lanzhou 730030, China
| | - Junliang Li
- The First School of Clinical Medical, Gansu University of Chinese Medicine, Lanzhou 730030, China
- Department of General Surgery, Gansu Provincial Hospital, Lanzhou 730030, China
- The First School of Clinical Medicine, Lanzhou University, Lanzhou 730030, China
- Correspondence:
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11
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Chiang MC, Nicol CJB, Lo SS, Hung SW, Wang CJ, Lin CH. Resveratrol Mitigates Oxygen and Glucose Deprivation-Induced Inflammation, NLRP3 Inflammasome, and Oxidative Stress in 3D Neuronal Culture. Int J Mol Sci 2022; 23:ijms231911678. [PMID: 36232980 PMCID: PMC9570351 DOI: 10.3390/ijms231911678] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 09/16/2022] [Accepted: 09/26/2022] [Indexed: 11/21/2022] Open
Abstract
Oxygen glucose deprivation (OGD) can produce hypoxia-induced neurotoxicity and is a mature in vitro model of hypoxic cell damage. Activated AMP-activated protein kinase (AMPK) regulates a downstream pathway that substantially increases bioenergy production, which may be a key player in physiological energy and has also been shown to play a role in regulating neuroprotective processes. Resveratrol is an effective activator of AMPK, indicating that it may have therapeutic potential as a neuroprotective agent. However, the mechanism by which resveratrol achieves these beneficial effects in SH-SY5Y cells exposed to OGD-induced inflammation and oxidative stress in a 3D gelatin scaffold remains unclear. Therefore, in the present study, we investigated the effect of resveratrol in 3D gelatin scaffold cells to understand its neuroprotective effects on NF-κB signaling, NLRP3 inflammasome, and oxidative stress under OGD conditions. Here, we show that resveratrol improves the expression levels of cell viability, inflammatory cytokines (TNF-α, IL-1β, and IL-18), NF-κB signaling, and NLRP3 inflammasome, that OGD increases. In addition, resveratrol rescued oxidative stress, nuclear factor-erythroid 2 related factor 2 (Nrf2), and Nrf2 downstream antioxidant target genes (e.g., SOD, Gpx GSH, catalase, and HO-1). Treatment with resveratrol can significantly normalize OGD-induced changes in SH-SY5Y cell inflammation, oxidative stress, and oxidative defense gene expression; however, these resveratrol protective effects are affected by AMPK antagonists (Compounds C) blocking. These findings improve our understanding of the mechanism of the AMPK-dependent protective effect of resveratrol under 3D OGD-induced inflammation and oxidative stress-mediated cerebral ischemic stroke conditions.
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Affiliation(s)
- Ming-Chang Chiang
- Department of Life Science, College of Science and Engineering, Fu Jen Catholic University, New Taipei 242304, Taiwan
| | - Christopher J. B. Nicol
- Departments of Pathology and Molecular Medicine, Queen’s University, Kingston, ON K7L 3N6, Canada
- Departments of Biomedical and Molecular Sciences, Queen’s University, Kingston, ON K7L 3N6, Canada
- Cancer Biology and Genetics Division, Cancer Research Institute, Queen’s University, Kingston, ON K7L 3N6, Canada
| | - Shy-Shyong Lo
- Department of Life Science, College of Science and Engineering, Fu Jen Catholic University, New Taipei 242304, Taiwan
| | - Shiang-Wei Hung
- Department of Life Science, College of Science and Engineering, Fu Jen Catholic University, New Taipei 242304, Taiwan
| | - Chieh-Ju Wang
- Department of Life Science, College of Science and Engineering, Fu Jen Catholic University, New Taipei 242304, Taiwan
| | - Chien-Hung Lin
- Division of Pediatric Immunology and Nephrology, Department of Pediatrics, Taipei Veterans General Hospital, Taipei 11217, Taiwan
- Department of Pediatrics, Zhongxing Branch, Taipei City Hospital, Taipei 10341, Taiwan
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan
- College of Science and Engineering, Fu Jen Catholic University, New Taipei 242304, Taiwan
- Correspondence:
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12
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Hu J, Tao M, Sun F, Chen C, Chen G, Wang G. Multifunctional hydrogel based on dopamine-modified hyaluronic acid, gelatin and silver nanoparticles for promoting abdominal wall defect repair. Int J Biol Macromol 2022; 222:55-64. [PMID: 36100003 DOI: 10.1016/j.ijbiomac.2022.09.052] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Revised: 08/30/2022] [Accepted: 09/06/2022] [Indexed: 11/26/2022]
Abstract
Abdominal wall defects are often accompanied by severe infections and complications, creating a significant challenge for clinicians. There is an urgent need to develop a novel wound dressing that can effectively prevent intra-abdominal infection and promote the healing of defective abdominal walls. Based on a hydrogel dressing containing hyaluronic acid (HA) and gelatin (GT), herein we integrated dopamine with a catechol structure to enhance its antioxidant and adherent properties. HA is oxidized to form an aldehyde group, and subsequently grafted with dopamine. The dopamine-modified HA undergoes amidation reaction with GT at different concentrations. In addition, silver nanoparticles (AgNPs) were introduced to the hydrogel to enhance the antibacterial properties. The in vitro studies on GT/DA-HA demonstrated excellent physical and chemical properties, biodegradability, and biocompatibility. In a rat full-thickness skin defect model and a full-thickness abdominal wall defect model, the GT/DA-HA hydrogel could accelerate the healing process by improving wet adhesion, reducing wound inflammation, and promoting angiogenesis and formation of granulation tissues. The multifunctional hydrogel developed in this study shows great potential for treating full-thickness abdominal wall defects.
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Affiliation(s)
- Jie Hu
- Department of General Surgery, Jinling Hospital, the First School of Clinical Medicine, Southern Medical University, Guangzhou 510515, China
| | - Mengyu Tao
- Department of Gastroenterology, The First Affiliated Hospital of Nanchang University, Nanchang 330000, China
| | - Fenghua Sun
- Department of Burn and Plastic Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Canwen Chen
- Department of General Surgery, Jinling Hospital, the First School of Clinical Medicine, Southern Medical University, Guangzhou 510515, China
| | - Guopu Chen
- Department of Burn and Plastic Surgery, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210002, China.
| | - Gefei Wang
- Department of General Surgery, Jinling Hospital, the First School of Clinical Medicine, Southern Medical University, Guangzhou 510515, China.
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13
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Polycaprolactone/Chitosan Composite Nanofiber Membrane as a Preferred Scaffold for the Culture of Mesothelial Cells and the Repair of Damaged Mesothelium. Int J Mol Sci 2022; 23:ijms23179517. [PMID: 36076916 PMCID: PMC9455682 DOI: 10.3390/ijms23179517] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 08/16/2022] [Accepted: 08/19/2022] [Indexed: 11/26/2022] Open
Abstract
Mesothelial cells are specific epithelial cells lining the serosal cavity and internal organs. Nonetheless, few studies have explored the possibility to culture mesothelial cells in a nanostructure scaffold for tissue engineering applications. Therefore, this study aims to fabricate nanofibers from a polycaprolactone (PCL) and PCL/chitosan (CS) blend by electrospinning, and to elucidate the effect of CS on the cellular response of mesothelial cells. The results demonstrate that a PCL and PCL/CS nanofiber membrane scaffold could be prepared with a comparable fiber diameter (~300 nm) and porosity for cell culture. Blending CS with PCL influenced the mechanical properties of the scaffold due to interference of PCL crystallinity in the nanofibers. However, CS substantially improves scaffold hydrophilicity and results in a ~6-times-higher cell attachment rate in PCL/CS. The mesothelial cells maintain high viability in both nanofiber membranes, but PCL/CS provides better maintenance of cobblestone-like mesothelial morphology. From gene expression analysis and immunofluorescence staining, the incorporation of CS also results in the upregulated expression of mesothelial marker genes and the enhanced production of key mesothelial maker proteins, endorsing PCL/CS to better maintain the mesothelial phenotype. The PCL/CS scaffold was therefore chosen for the in vivo studies, which involved transplanting a cell/scaffold construct containing allograft mesothelial cells for mesothelium reconstruction in rats. In the absence of mesothelial cells, the mesothelium wound covered with PCL/CS showed an inflammatory response. In contrast, a mesothelium layer similar to native mesothelium tissue could be obtained by implanting the cell/scaffold construct, based on hematoxylin and eosin (H&E) and immunohistochemical staining.
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Natural Scaffolds Used for Liver Regeneration: A Narrative Update. Stem Cell Rev Rep 2022; 18:2262-2278. [PMID: 35320512 DOI: 10.1007/s12015-022-10362-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/05/2022] [Indexed: 10/18/2022]
Abstract
Annually chronic liver diseases cause two million death worldwide. Although liver transplantation (LT) is still considered the best therapeutic option, the limited number of donated livers and lifelong side effects of LT has led researchers to seek alternative therapies. Tissue engineering (TE) as a promising method is considered for liver repair and regeneration. TE uses natural or synthetic scaffolds, functional somatic cells, multipotent stem cells, and growth factors to develop new organs. Biological scaffolds are notable in TE because of their capacity to mimic extracellular matrices, biodegradability, and biocompatibility. Moreover, natural scaffolds are classified based on their source and function in three separate groups. Hemostat-based scaffolds as the first group were reviewed for their application in coagulation in liver injury or surgery. Furthermore, recent studies showed improvement in the function of biological hydrogels in liver regeneration and vascularity. In addition, different applications of natural scaffolds were discussed and compared with synthetic scaffolds. Finally, we focused on the efforts to improve the performance of decellularized extracellular matrixes for liver implantation.
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Yap JX, Leo CP, Mohd Yasin NH, Show PL, Chu DT, Singh V, Derek CJC. Recent advances of natural biopolymeric culture scaffold: synthesis and modification. Bioengineered 2022; 13:2226-2247. [PMID: 35030968 PMCID: PMC8974151 DOI: 10.1080/21655979.2021.2024322] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Traditionally existing 2D culture scaffold has been inappropriately validated due to the failure in generating the precise therapeutic response. Therefore, this leads to the fabrication of 3D culture scaffold resolving the limitations in the in vivo environment. In recent years, tissue engineering played an important role in the field of bio-medical engineering. Biopolymer material, a novel natural material with excellent properties of nontoxic and biodegradable merits can be served as culture scaffold. This review summarizes the modifications of natural biopolymeric culture scaffold with different crosslinkers and their application. In addition, this review provides the recent progress of natural biopolymeric culture scaffold mainly focusing on their properties, synthesizing and modification and application.
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Affiliation(s)
- Jia Xin Yap
- School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal, Malaysia
| | - C P Leo
- School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal, Malaysia
| | - Nazlina Haiza Mohd Yasin
- Department of Biological Sciences and Biotechnology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi, Malaysia
| | - Pau Loke Show
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Semenyih, Malaysia
| | - Dinh-Toi Chu
- Center for Biomedicine and Community Health, International School, Vietnam National University, Hanoi, Vietnam
| | - Vijai Singh
- Department of Biosciences, School of Science, Indrashil University, Rajpur, Mehsana, India
| | - C J C Derek
- School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal, Malaysia
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16
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Mehra L, Mehra S, Tiwari N, Singh T, Rawat H, Belagavi S, Jaimini A, Mittal G. Fabrication, characterization and evaluation of the efficacy of gelatin/hyaluronic acid microporous scaffolds suffused with aloe-vera in a rat burn model. J Biomater Appl 2021; 36:1346-1358. [PMID: 34873947 DOI: 10.1177/08853282211061821] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Burn induced injuries are commonly encountered in civilian and military settings, leading to severe morbidity and mortality. Objective of this study was to construct microporous bioactive scaffolds of gelatin-hyaluronic acid suffused with aloe-vera gel (Gela/HA/AvG), and to evaluate their efficacy in healing partial-thickness burn wounds. Scaffolds were characterized using Fourier transform-infrared spectroscopy, Scanning electron microscopy, and Thermo-gravimetric analysis to understand intermolecular interactions and morphological characteristics. In-vitro fluid uptake ability and hemolytic index of test scaffolds were also determined. In-vitro collagenase digestion was done to assess biodegradability of scaffolds. Wound retraction studies were carried out in Sprague Dawley rats inflicted with partial-thickness burn wounds to assess and compare efficacy of optimized scaffolds with respect to negative and positive control groups. In-vivo gamma scintigraphy using Technetium-99m labeled Immunoglobulin-G (99mTc-IgG) as imaging agent was also performed to validate efficacy results. Histological and immunohistochemical comparison between groups was also made. Scaffolds exhibited mircoporous structure, with pore size getting reduced from 41.3 ± 4.3 µm to 30.49 ± 5.7 µm when gelatin conc. was varied from 1% to 5%. Optimized test scaffolds showed sustained in-vitro swelling behavior, were biodegradable and showed hemolytic index in range of 2.4-4.3%. Wound retraction study along with in-vivo gamma scintigraphy indicated that Gela/HA/AvG scaffolds were not only able to reduce local inflammation faster but also accelerated dermis regeneration. Immunohistochemical analysis, in terms of expression levels of epidermal growth factor and fibroblast growth factor-2 also corroborated in-vivo efficacy findings. Gela/HA/AvG scaffolds, therefore, can potentially be developed into an effective dermal regeneration template for partial-thickness burn wounds.
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Affiliation(s)
- Lalita Mehra
- Department of Combat Sciences, 93048DRDO Institute of Nuclear Medicine and Allied Sciences, Delhi, India
| | - Smritee Mehra
- Department of Biotechnology, RinggoldID:231547Manav Rachna International Institute of Research and Studies, Faridabad, Haryana, India
| | - Nidhi Tiwari
- Department of Combat Sciences, 93048DRDO Institute of Nuclear Medicine and Allied Sciences, Delhi, India
| | - Thakuri Singh
- Department of Combat Sciences, 93048DRDO Institute of Nuclear Medicine and Allied Sciences, Delhi, India
| | - Harish Rawat
- Department of Nuclear Medicine, 93048DRDO Institute of Nuclear Medicine and Allied Sciences, Delhi, India
| | - Shreeshail Belagavi
- Department of Cytopathology, 93048DRDO Institute of Nuclear Medicine and Allied Sciences, Delhi, India
| | - Abhinav Jaimini
- Department of Nuclear Medicine, 93048DRDO Institute of Nuclear Medicine and Allied Sciences, Delhi, India
| | - Gaurav Mittal
- Department of Combat Sciences, 93048DRDO Institute of Nuclear Medicine and Allied Sciences, Delhi, India
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Wartenberg A, Weisser J, Schnabelrauch M. Glycosaminoglycan-Based Cryogels as Scaffolds for Cell Cultivation and Tissue Regeneration. Molecules 2021; 26:5597. [PMID: 34577067 PMCID: PMC8466427 DOI: 10.3390/molecules26185597] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 09/08/2021] [Accepted: 09/12/2021] [Indexed: 12/12/2022] Open
Abstract
Cryogels are a class of macroporous, interconnective hydrogels polymerized at sub-zero temperatures forming mechanically robust, elastic networks. In this review, latest advances of cryogels containing mainly glycosaminoglycans (GAGs) or composites of GAGs and other natural or synthetic polymers are presented. Cryogels produced in this way correspond to the native extracellular matrix (ECM) in terms of both composition and molecular structure. Due to their specific structural feature and in addition to an excellent biocompatibility, GAG-based cryogels have several advantages over traditional GAG-hydrogels. This includes macroporous, interconnective pore structure, robust, elastic, and shape-memory-like mechanical behavior, as well as injectability for many GAG-based cryogels. After addressing the cryogelation process, the fabrication of GAG-based cryogels and known principles of GAG monomer crosslinking are discussed. Finally, an overview of specific GAG-based cryogels in biomedicine, mainly as polymeric scaffold material in tissue regeneration and tissue engineering-related controlled release of bioactive molecules and cells, is provided.
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Affiliation(s)
- Annika Wartenberg
- Biomaterials Department, INNOVENT e.V., Pruessingstrasse 27B, 07745 Jena, Germany;
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18
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He Y, Wang C, Wang C, Xiao Y, Lin W. An Overview on Collagen and Gelatin-Based Cryogels: Fabrication, Classification, Properties and Biomedical Applications. Polymers (Basel) 2021; 13:2299. [PMID: 34301056 PMCID: PMC8309424 DOI: 10.3390/polym13142299] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/20/2021] [Accepted: 07/09/2021] [Indexed: 12/16/2022] Open
Abstract
Decades of research into cryogels have resulted in the development of many types of cryogels for various applications. Collagen and gelatin possess nontoxicity, intrinsic gel-forming ability and physicochemical properties, and excellent biocompatibility and biodegradability, making them very desirable candidates for the fabrication of cryogels. Collagen-based cryogels (CBCs) and gelatin-based cryogels (GBCs) have been successfully applied as three-dimensional substrates for cell culture and have shown promise for biomedical use. A key point in the development of CBCs and GBCs is the quantitative and precise characterization of their properties and their correlation with preparation process and parameters, enabling these cryogels to be tuned to match engineering requirements. Great efforts have been devoted to fabricating these types of cryogels and exploring their potential biomedical application. However, to the best of our knowledge, no comprehensive overviews focused on CBCs and GBCs have been reported currently. In this review, we attempt to provide insight into the recent advances on such kinds of cryogels, including their fabrication methods and structural properties, as well as potential biomedical applications.
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Affiliation(s)
- Yujing He
- Department of Biomass and Leather Engineering, Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, China; (Y.H.); (C.W.); (Y.X.)
| | - Chunhua Wang
- Department of Biomass and Leather Engineering, Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, China; (Y.H.); (C.W.); (Y.X.)
- National Engineering Research Center of Clean Technology in Leather Industry, Sichuan University, Chengdu 610065, China
| | - Chenzhi Wang
- Department of Biomass and Leather Engineering, Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, China; (Y.H.); (C.W.); (Y.X.)
| | - Yuanhang Xiao
- Department of Biomass and Leather Engineering, Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, China; (Y.H.); (C.W.); (Y.X.)
| | - Wei Lin
- Department of Biomass and Leather Engineering, Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, China; (Y.H.); (C.W.); (Y.X.)
- National Engineering Research Center of Clean Technology in Leather Industry, Sichuan University, Chengdu 610065, China
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Savina IN, Zoughaib M, Yergeshov AA. Design and Assessment of Biodegradable Macroporous Cryogels as Advanced Tissue Engineering and Drug Carrying Materials. Gels 2021; 7:79. [PMID: 34203439 PMCID: PMC8293244 DOI: 10.3390/gels7030079] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 06/17/2021] [Accepted: 06/22/2021] [Indexed: 12/13/2022] Open
Abstract
Cryogels obtained by the cryotropic gelation process are macroporous hydrogels with a well-developed system of interconnected pores and shape memory. There have been significant recent advancements in our understanding of the cryotropic gelation process, and in the relationship between components, their structure and the application of the cryogels obtained. As cryogels are one of the most promising hydrogel-based biomaterials, and this field has been advancing rapidly, this review focuses on the design of biodegradable cryogels as advanced biomaterials for drug delivery and tissue engineering. The selection of a biodegradable polymer is key to the development of modern biomaterials that mimic the biological environment and the properties of artificial tissue, and are at the same time capable of being safely degraded/metabolized without any side effects. The range of biodegradable polymers utilized for cryogel formation is overviewed, including biopolymers, synthetic polymers, polymer blends, and composites. The paper discusses a cryotropic gelation method as a tool for synthesis of hydrogel materials with large, interconnected pores and mechanical, physical, chemical and biological properties, adapted for targeted biomedical applications. The effect of the composition, cross-linker, freezing conditions, and the nature of the polymer on the morphology, mechanical properties and biodegradation of cryogels is discussed. The biodegradation of cryogels and its dependence on their production and composition is overviewed. Selected representative biomedical applications demonstrate how cryogel-based materials have been used in drug delivery, tissue engineering, regenerative medicine, cancer research, and sensing.
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Affiliation(s)
- Irina N. Savina
- School of Pharmacy and Biomolecular Sciences, University of Brighton, Huxley Building, Lewes Road, Brighton BN2 4GJ, UK
| | - Mohamed Zoughaib
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, 18 Kremlyovskaya St., 420008 Kazan, Russia; (M.Z.); (A.A.Y.)
| | - Abdulla A. Yergeshov
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, 18 Kremlyovskaya St., 420008 Kazan, Russia; (M.Z.); (A.A.Y.)
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Jonidi Shariatzadeh F, Solouk A, Bagheri Khoulenjani S, Bonakdar S, Mirzadeh H. Injectable and reversible preformed cryogels based on chemically crosslinked gelatin methacrylate (GelMA) and physically crosslinked hyaluronic acid (HA) for soft tissue engineering. Colloids Surf B Biointerfaces 2021; 203:111725. [PMID: 33838583 DOI: 10.1016/j.colsurfb.2021.111725] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 03/01/2021] [Accepted: 03/24/2021] [Indexed: 12/12/2022]
Abstract
Hydrogels are a promising choice for soft tissue (cartilage, skin and adipose) engineering and repair. However, lack of interconnected porosity and poor mechanical performance have hindered their application, especially in natural polymer-based hydrogels. Cryogels with the potential to overcome the shortcomings of hydrogels have drawn attention in the last few years. Thus, in this study, highly porous and mechanically robust cryogels based on interpenetrating polymer network (IPN) of gelatin methacrylate (GelMA) and hyaluronic acid (HA) were fabricated for soft tissue engineering application. Cryogels have a constant amount of GelMA (3% wt) with different concentrations of HA (from 5% to 20 % w/w). In fact, crosslinking through cryogelation in subzero temperature facilitates the formation of interconnected pores with 90 % porosity percentage without external progen. On the other hand, high mechanical stability (no failure up to 90 % compression) was achieved due to the cryogelation and chemical crosslinking of GelMA as well as physical crosslinking of HA. Furthermore, the porous and hydrophile nature of the cryogels resulted in shape memory properties under compression, which can reverse to initial shape after retaining the water. Although increasing the HA concentration followed by the density of physical crosslinking boosted the mechanical performance of cryogels under compression, it limited the reversibility properties. Nevertheless, all cryogels with different HA concentrations showed acceptable gel strength and Young's modulus (G-H-20, E = 6kPa) and had appropriate pore size for cell infiltration and nutrient transportation with good cell adhesion and high cell viability (more than 90 %). The unique property of fabricated cryogels that facilitate less invasive delivery makes them a promising alternative for the soft tissue application.
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Affiliation(s)
| | - Atefeh Solouk
- Biomedical Engineering Department, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran.
| | - Shadab Bagheri Khoulenjani
- Polymer and Color Engineering Department, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran.
| | - Shahin Bonakdar
- National Cell Bank Department, Pasteur Institute of Iran, Tehran, Iran
| | - Hamid Mirzadeh
- Biomedical Engineering Department, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
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Shen BY, Li JX, Wang XF, Zhou Q. Impact of Different Proportions of 2D and 3D Scaffolds on the Proliferation and Differentiation of Human Adipose-Derived Stem Cells. J Oral Maxillofac Surg 2021; 79:1580.e1-1580.e11. [PMID: 33675701 DOI: 10.1016/j.joms.2021.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 12/28/2020] [Accepted: 02/01/2021] [Indexed: 11/25/2022]
Abstract
PURPOSE To observe the proliferation and differentiation of human adipose-derived stem cells (hADSCs) on 2D and 3D scaffolds, the sodium alginate and collagen interpenetrating network hydrogel were developed to determine optimal properties for bone tissue engineering. METHODS Three groups of scaffold materials were prepared according to the ratio of sodium alginate to collagen: A (4:1), B (2:1), and C (1:1), respectively. For each group, gel beads (3D surfaces) and freeze-dried films (2D surfaces) were respectively prepared. For gel beads, hADSCs were mixed during the preparation of the beads, and then stem cells were applied to the surface of each film after freeze-drying and sterilization during the preparation of the freeze-dried films. Cell proliferation and osteogenic differentiation potential were detected by cell counting kit, viable/dead cell staining kit, quantitative reverse transcription polymerase chain reaction, and immunofluorescent staining, respectively. RESULTS Results showed that cell proliferation rate progressively increased with the increase of collagen ratio, with group C of 3D surfaces of gel beads achieving the highest rate. In particular, highest cell viability on the 2D surfaces was achieved in group B. Differences in BGLAP and RUNX2 expression in hADSCs on 2D or 3D surfaces of the 3 groups were statistically significant. Particularly, BGLAP and RUNX2 gene expression levels were highest in group C of freeze-dried films and were highest in group B of gel beads. Furthermore, the trend of immunofluorescence expression of RUNX2 and osteocalcin expression were consistent with the genetic testing results. CONCLUSIONS All data indicated that sodium alginate-collagen scaffolding materials had no adverse impact on the proliferation and osteogenic differentiation of hADSCs. Cell differentiation and proliferation of bone tissue engineering can be promoted with the use of sodium alginate and collagen interpenetrating network hydrogel, and the appropriate ratio of sodium alginate and collagen is 2:1.
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Affiliation(s)
- Bei-Yong Shen
- Resident, Department of Stomatology, Shenzhen Second Peoples Hospital, Shenzhen University First Affiliated Hospital, Shenzhen, Guangdong Province, China
| | - Jun-Xin Li
- Resident, Department of Stomatology, Shenzhen Second Peoples Hospital, Shenzhen University First Affiliated Hospital, Shenzhen, Guangdong Province, China
| | - Xiao-Fei Wang
- Resident, Department of Stomatology, Shenzhen Second Peoples Hospital, Shenzhen University First Affiliated Hospital, Shenzhen, Guangdong Province, China
| | - Qi Zhou
- Department Head, Department of Stomatology, Shenzhen Second Peoples Hospital, Shenzhen University First Affiliated Hospital, Shenzhen, Guangdong Province, China.
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3D Cytocompatible Composites of PCL/magnetite. MATERIALS 2019; 12:ma12233843. [PMID: 31766520 PMCID: PMC6926959 DOI: 10.3390/ma12233843] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 11/14/2019] [Accepted: 11/19/2019] [Indexed: 02/06/2023]
Abstract
A study of Magnetite (Fe3O4) as a suitable matrix for the improved adhesion and proliferation of MC3T3-E1 pre-osteoblast cells in bone regeneration is presented. Biodegradable and magnetic polycaprolactone (PCL)/magnetite (Fe3O4) scaffolds, which were fabricated by Thermally Induced Phase Separation, are likewise analyzed. Various techniques are used to investigate in vitro degradation at 37 °C, over 104 weeks, in a phosphate buffered saline (PBS) solution. Magnetic measurements that were performed at physiological temperature (310 K) indicated that degradation neither modified the nature nor the distribution of the magnetite nanoparticles. The coercive field strength of the porous matrices demonstrated ferromagnetic behavior and the probable presence of particle interactions. The added nanoparticles facilitated the absorption of PBS, with no considerable increase in matrix degradation rates, as shown by the Gel Permeation Chromatography (GPC) results for Mw, Mn, and I. There was no collapse of the scaffold structures that maintained their structural integrity. Their suitability for bone regeneration was also supported by the absence of matrix cytotoxicity in assays, even after additions of up to 20% magnetite.
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