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Husch JFA, Araújo-Gomes N, Willemen NGA, Cofiño-Fabrés C, van Creij N, Passier R, Leijten J, van den Beucken JJJP. Upscaling Osteoclast Generation by Enhancing Macrophage Aggregation Using Hollow Microgels. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2403272. [PMID: 39087382 DOI: 10.1002/smll.202403272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 07/02/2024] [Indexed: 08/02/2024]
Abstract
Osteoclasts, the bone resorbing cells of hematopoietic origin formed by macrophage fusion, are essential in bone health and disease. However, in vitro research on osteoclasts remains challenging due to heterogeneous cultures that only contain a few multinucleated osteoclasts. Indeed, a strategy to generate homogeneous populations of multinucleated osteoclasts in a scalable manner has remained elusive. Here, the investigation focuses on whether microencapsulation of human macrophages in microfluidically generated hollow, sacrificial tyramine-conjugated dextran (Dex-TA) microgels could facilitate macrophage precursor aggregation and formation of multinucleated osteoclasts. Therefore, human mononuclear cells are isolated from buffy coats and differentiated toward macrophages. Macrophages are encapsulated in microgels using flow focus microfluidics and outside-in enzymatic oxidative phenolic crosslinking, and differentiated toward osteoclasts. Morphology, viability, and osteoclast fusion of microencapsulated cells are assessed. Furthermore, microgels are degraded to allow cell sorting of released cells based on osteoclastic marker expression. The successful encapsulation and osteoclast formation of human macrophages in Dex-TA microgels are reported for the first time using high-throughput droplet microfluidics. Intriguingly, osteoclast formation within these 3D microenvironments occurs at a significantly higher level compared to the conventional 2D culture system. Furthermore, the feasibility of establishing a pure osteoclast culture from cell transfer and release from degradable microgels is demonstrated.
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Affiliation(s)
- Johanna F A Husch
- Regenerative Biomaterials, Department of Dentistry, Radboudumc, Philips van Leydenlaan 25, Nijmegen, 6525EX, The Netherlands
- Leijten Laboratory, Department of BioEngineering Technologies, University of Twente, Drienerlolaan 5, Enschede, 7522NB, The Netherlands
| | - Nuno Araújo-Gomes
- Leijten Laboratory, Department of BioEngineering Technologies, University of Twente, Drienerlolaan 5, Enschede, 7522NB, The Netherlands
| | - Niels G A Willemen
- Leijten Laboratory, Department of BioEngineering Technologies, University of Twente, Drienerlolaan 5, Enschede, 7522NB, The Netherlands
| | - Carla Cofiño-Fabrés
- Applied Stem Cell Technologies, Department of BioEngineering Technologies, University of Twente, Drienerlolaan 5, Enschede, 7522NB, The Netherlands
| | - Nils van Creij
- Regenerative Biomaterials, Department of Dentistry, Radboudumc, Philips van Leydenlaan 25, Nijmegen, 6525EX, The Netherlands
| | - Robert Passier
- Applied Stem Cell Technologies, Department of BioEngineering Technologies, University of Twente, Drienerlolaan 5, Enschede, 7522NB, The Netherlands
| | - Jeroen Leijten
- Leijten Laboratory, Department of BioEngineering Technologies, University of Twente, Drienerlolaan 5, Enschede, 7522NB, The Netherlands
| | - Jeroen J J P van den Beucken
- Regenerative Biomaterials, Department of Dentistry, Radboudumc, Philips van Leydenlaan 25, Nijmegen, 6525EX, The Netherlands
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2
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Wang J, Ruan X, Guan H, Fu H, Ai S, Wang Y. Drug Efficacy Comparison of pH-Sensitive and Non-pH-Sensitive Taxol Delivery Nanoparticles in Cancer Therapy. Macromol Biosci 2024; 24:e2400009. [PMID: 38490190 DOI: 10.1002/mabi.202400009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 03/07/2024] [Indexed: 03/17/2024]
Abstract
Taxol is one of the most widely used chemotherapeutic agents but is restricted by its poor solubility and severe side effects in clinical practice. To overcome these limitations, pH-sensitive nanoparticles, Acetalated Dextran6k-PEG5k-PLA2k-Taxol (ADPP-PTX), non-pH-sensitive nanoparticles, and Propionic Anhydride modified Dextran6k-PEG5k-PLA2k-Taxol (PDPP-PTX) are developed for the delivery of Taxol. Compared with PDPP-PTX, ADPP-PTX shows higher sensitivity to acid response and greater anti-proliferative effect on cancer cells. In the in vivo study, ADPP-PTX treatment effectively suppresses the growth of tumors, while only half the dose of Taxol is used, which significantly reduces systemic toxicity compared with Taxol and PDPP-PTX.
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Affiliation(s)
- Jianquan Wang
- School of Material Engineering, Jinling Institute of Technology, Nanjing, 211169, China
- Department of Biomedical Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing, Jiangsu Province, 210093, China
| | - Xinyan Ruan
- Tianyuan Honors School, Nanjing Medical University, Nanjing, 211163, China
| | - Hangmin Guan
- School of Material Engineering, Jinling Institute of Technology, Nanjing, 211169, China
| | - Hailuo Fu
- School of Material Engineering, Jinling Institute of Technology, Nanjing, 211169, China
| | - Shichao Ai
- Department of General Surgery, Drum Tower Hospital, Medical School of Nanjing University, 321 Zhongshan Road, Nanjing, Jiangsu, 210008, China
| | - Yiqing Wang
- Department of Biomedical Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing, Jiangsu Province, 210093, China
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3
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Chen C, Zhao H, Zhang W, Hong X, Li S, Rohani S. Wharton's jelly stem cells delivered via a curcumin-loaded nanofibrous wound dressings improved diabetic wound healing via upregulating VEGF and IGF genes: An in vitro and in vivo study. Regen Ther 2024; 26:547-556. [PMID: 39210999 PMCID: PMC11359744 DOI: 10.1016/j.reth.2024.06.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Revised: 06/15/2024] [Accepted: 06/27/2024] [Indexed: 09/04/2024] Open
Abstract
Diabetic wounds pose an enduring clinical hurdle, marked by delayed recovery, persistent inflammation, and an elevated susceptibility to infections. Conventional treatment approaches often fall short of delivering optimal outcomes, prompting the exploration of innovative methods to enhance the healing process. Electrospun wound dressings offer superior healing, controlled drug release, enhanced cell proliferation, biocompatibility, high surface area, and antimicrobial properties. In the current study, polycaprolactone/gelatin-based nanofibrous wound dressings were developed for the delivery of Wharton's jelly stem cells and curcumin into the diabetic wounds bed. Curcumin was loaded into the polycaprolactone/gelatin solution and electrospun to produce curcumin-loaded scaffolds. In vitro experiments including scanning electron microscopy, cell viability assay, release assay, hemocompatibility assay, cell proliferation assay, and antibacterial assay were utilized to characterize the delivery system. Then, curcumin-loaded scaffolds were seeded with 30,000 Wharton's jelly stem cells and implanted into a rat model of diabetic wounds. Study showed that the scaffolds containing both Wharton's jelly stem cells and curcumin significantly improved diabetic wound closure (86.32 3.88% at the end of 14th day), augmented collagen deposition, and improved epithelial tissue formation. Gene expression studies showed that VEGF and IGF genes were significantly upregulated by the co-delivery system. Our developed system may have augmented diabetic wound healing via upregulating pro-healing genes.
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Affiliation(s)
- Chengjin Chen
- Department of Orthopedics and Traumatology, The Third People's Hospital of Yunnan Province, Kunming City, 650000, China
| | - Hui Zhao
- Department of Orthopedics and Traumatology, The Third People's Hospital of Yunnan Province, Kunming City, 650000, China
| | - Wenlu Zhang
- Rehabilitation Medicine Department, The Third People's Hospital of Yunnan Province, Kunming City, 650000, China
| | - Xuelan Hong
- Department of Orthopedics and Traumatology, The Third People's Hospital of Yunnan Province, Kunming City, 650000, China
| | - Shengjie Li
- Department of Orthopedics and Traumatology, The Third People's Hospital of Yunnan Province, Kunming City, 650000, China
| | - Saeed Rohani
- Department of Tissue Engineering and Applied Cell Science, Tehran University of Medical Sciences, Tehran, 444522125, Iran
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Tamo AK, Djouonkep LDW, Selabi NBS. 3D Printing of Polysaccharide-Based Hydrogel Scaffolds for Tissue Engineering Applications: A Review. Int J Biol Macromol 2024; 270:132123. [PMID: 38761909 DOI: 10.1016/j.ijbiomac.2024.132123] [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: 12/05/2023] [Revised: 05/02/2024] [Accepted: 05/04/2024] [Indexed: 05/20/2024]
Abstract
In tissue engineering, 3D printing represents a versatile technology employing inks to construct three-dimensional living structures, mimicking natural biological systems. This technology efficiently translates digital blueprints into highly reproducible 3D objects. Recent advances have expanded 3D printing applications, allowing for the fabrication of diverse anatomical components, including engineered functional tissues and organs. The development of printable inks, which incorporate macromolecules, enzymes, cells, and growth factors, is advancing with the aim of restoring damaged tissues and organs. Polysaccharides, recognized for their intrinsic resemblance to components of the extracellular matrix have garnered significant attention in the field of tissue engineering. This review explores diverse 3D printing techniques, outlining distinctive features that should characterize scaffolds used as ideal matrices in tissue engineering. A detailed investigation into the properties and roles of polysaccharides in tissue engineering is highlighted. The review also culminates in a profound exploration of 3D polysaccharide-based hydrogel applications, focusing on recent breakthroughs in regenerating different tissues such as skin, bone, cartilage, heart, nerve, vasculature, and skeletal muscle. It further addresses challenges and prospective directions in 3D printing hydrogels based on polysaccharides, paving the way for innovative research to fabricate functional tissues, enhancing patient care, and improving quality of life.
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Affiliation(s)
- Arnaud Kamdem Tamo
- Institute of Microsystems Engineering IMTEK, University of Freiburg, 79110 Freiburg, Germany; Freiburg Center for Interactive Materials and Bioinspired Technologies FIT, University of Freiburg, 79110 Freiburg, Germany; Freiburg Materials Research Center FMF, University of Freiburg, 79104 Freiburg, Germany; Ingénierie des Matériaux Polymères (IMP), Université Claude Bernard Lyon 1, INSA de Lyon, Université Jean Monnet, CNRS, UMR 5223, 69622 Villeurbanne CEDEX, France.
| | - Lesly Dasilva Wandji Djouonkep
- College of Petroleum Engineering, Yangtze University, Wuhan 430100, China; Key Laboratory of Drilling and Production Engineering for Oil and Gas, Wuhan 430100, China
| | - Naomie Beolle Songwe Selabi
- Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and Technology, Wuhan 430081, China
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5
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Li L, Griebel ME, Uroz M, Bubli SY, Gagnon KA, Trappmann B, Baker BM, Eyckmans J, Chen CS. A Protein-Adsorbent Hydrogel with Tunable Stiffness for Tissue Culture Demonstrates Matrix-Dependent Stiffness Responses. ADVANCED FUNCTIONAL MATERIALS 2024; 34:2309567. [PMID: 38693998 PMCID: PMC11060701 DOI: 10.1002/adfm.202309567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Indexed: 05/03/2024]
Abstract
Although tissue culture plastic has been widely employed for cell culture, the rigidity of plastic is not physiologic. Softer hydrogels used to culture cells have not been widely adopted in part because coupling chemistries are required to covalently capture extracellular matrix (ECM) proteins and support cell adhesion. To create an in vitro system with tunable stiffnesses that readily adsorbs ECM proteins for cell culture, we present a novel hydrophobic hydrogel system via chemically converting hydroxyl residues on the dextran backbone to methacrylate groups, thereby transforming non-protein adhesive, hydrophilic dextran to highly protein adsorbent substrates. Increasing methacrylate functionality increases the hydrophobicity in the resulting hydrogels and enhances ECM protein adsorption without additional chemical reactions. These hydrophobic hydrogels permit facile and tunable modulation of substrate stiffness independent of hydrophobicity or ECM coatings. Using this approach, we show that substrate stiffness and ECM adsorption work together to affect cell morphology and proliferation, but the strengths of these effects vary in different cell types. Furthermore, we reveal that stiffness mediated differentiation of dermal fibroblasts into myofibroblasts is modulated by the substrate ECM. Our material system demonstrates remarkable simplicity and flexibility to tune ECM coatings and substrate stiffness and study their effects on cell function.
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Affiliation(s)
- Linqing Li
- Department of Biomedical Engineering, Biological Design Center, Boston University, Boston, MA, 02215, United States
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, 02115, United States
- Department of Chemical Engineering and Bioengineering, University of New Hampshire, Durham, New Hampshire, 03824, United States
| | - Megan E Griebel
- Department of Biomedical Engineering, Biological Design Center, Boston University, Boston, MA, 02215, United States
| | - Marina Uroz
- Department of Biomedical Engineering, Biological Design Center, Boston University, Boston, MA, 02215, United States
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, 02115, United States
| | - Saniya Yesmin Bubli
- Department of Chemical Engineering and Bioengineering, University of New Hampshire, Durham, New Hampshire, 03824, United States
| | - Keith A Gagnon
- Department of Biomedical Engineering, Biological Design Center, Boston University, Boston, MA, 02215, United States
| | - Britta Trappmann
- Bioactive Materials Laboratory, Max Planck Institute for Molecular Biomedicine, Röntgenstraße 20, Münster, 48149 Germany
| | - Brendon M Baker
- Engineered Microenvironments and Mechanobiology Lab, Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, 48109 United States
| | - Jeroen Eyckmans
- Department of Biomedical Engineering, Biological Design Center, Boston University, Boston, MA, 02215, United States
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, 02115, United States
| | - Christopher S Chen
- Department of Biomedical Engineering, Biological Design Center, Boston University, Boston, MA, 02215, United States
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, 02115, United States
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6
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Angolkar M, Paramshetti S, Gahtani RM, Al Shahrani M, Hani U, Talath S, Osmani RAM, Spandana A, Gangadharappa HV, Gundawar R. Pioneering a paradigm shift in tissue engineering and regeneration with polysaccharides and proteins-based scaffolds: A comprehensive review. Int J Biol Macromol 2024; 265:130643. [PMID: 38467225 DOI: 10.1016/j.ijbiomac.2024.130643] [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: 10/13/2023] [Revised: 02/16/2024] [Accepted: 03/03/2024] [Indexed: 03/13/2024]
Abstract
In the realm of modern medicine, tissue engineering and regeneration stands as a beacon of hope, offering the promise of restoring form and function to damaged or diseased organs and tissues. Central to this revolutionary field are biological macromolecules-nature's own blueprints for regeneration. The growing interest in bio-derived macromolecules and their composites is driven by their environmentally friendly qualities, renewable nature, minimal carbon footprint, and widespread availability in our ecosystem. Capitalizing on these unique attributes, specific composites can be tailored and enhanced for potential utilization in the realm of tissue engineering (TE). This review predominantly concentrates on the present research trends involving TE scaffolds constructed from polysaccharides, proteins and glycosaminoglycans. It provides an overview of the prerequisites, production methods, and TE applications associated with a range of biological macromolecules. Furthermore, it tackles the challenges and opportunities arising from the adoption of these biomaterials in the field of TE. This review also presents a novel perspective on the development of functional biomaterials with broad applicability across various biomedical applications.
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Affiliation(s)
- Mohit Angolkar
- Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education and Research (JSSAHER), Mysuru 570015, Karnataka, India
| | - Sharanya Paramshetti
- Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education and Research (JSSAHER), Mysuru 570015, Karnataka, India
| | - Reem M Gahtani
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha 61421, Saudi Arabia.
| | - Mesfer Al Shahrani
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha 61421, Saudi Arabia.
| | - Umme Hani
- Department of Pharmaceutics, College of Pharmacy, King Khalid University, Abha 61421, Saudi Arabia.
| | - Sirajunisa Talath
- Department of Pharmaceutical Chemistry, RAK College of Pharmaceutical Sciences, RAK Medical and Health Sciences University, Ras Al Khaimah 11172, United Arab Emirates.
| | - Riyaz Ali M Osmani
- Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education and Research (JSSAHER), Mysuru 570015, Karnataka, India.
| | - Asha Spandana
- Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education and Research (JSSAHER), Mysuru 570015, Karnataka, India.
| | | | - Ravi Gundawar
- Department of Pharmaceutical Quality Assurance, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal 576104, Karnataka, India.
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7
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Pakhomov O, Shevchenko N, Chernobai N, Prokopiuk V, Yershov S, Bozhok G. Open-source hardware- and software-based cryomicroscopy system for investigation of phase transitions in cryobiological research. J Microsc 2024; 293:71-85. [PMID: 38093667 DOI: 10.1111/jmi.13253] [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: 09/07/2023] [Revised: 11/08/2023] [Accepted: 12/11/2023] [Indexed: 12/20/2023]
Abstract
The development of inexpensive equipment adapted for the study of a specific biological object is very important for cryobiology. In the presented work, we have proposed a simple system for microscopy utilising open-source platform Arduino. Testing this system showed that it had sufficient sensitivity to determine the physical processes occurring in a cryopreserved sample such as intra- and extracellular water crystallisation and salt eutectic. Utilising this system, we investigated the mechanisms of cryoprotection and cryodamage of testis interstitial cells (ICs) in cryoprotective media, which included cryoprotective agents such as dimethyl sulphoxide (Me2 SO), as well as foetal bovine serum or polymers (dextran, hydroxyethyl starch and polyethylene glycol). It was shown that a serum-/xeno-free medium that included 0.7 M Me2 SO and 100 mg/mL dextran was able to reduce intracellular water crystallisation in cells, change the structure of extracellular ice, and reduce salt eutectic and recrystallisation. All these effects correlated with better IC survival after cryopreservation in the medium. This medium is potentially less toxic as it has lower concentrations of Me2 SO compared to serum-containing media developed for cryopreservation of testicular cells. This would pave a way for the creation of nontoxic serum-free compositions that does not require removal before use of cryopreserved living cells for laboratory practice or in clinics.
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Affiliation(s)
- Oleksandr Pakhomov
- Department of Cryoendocrinology, Institute for Problems of Cryobiology and Cryomedicine, National Academy of Sciences of Ukraine, Kharkiv, Ukraine
| | - Nadiia Shevchenko
- Department of Cryoendocrinology, Institute for Problems of Cryobiology and Cryomedicine, National Academy of Sciences of Ukraine, Kharkiv, Ukraine
| | - Nadiia Chernobai
- Department of Cryoendocrinology, Institute for Problems of Cryobiology and Cryomedicine, National Academy of Sciences of Ukraine, Kharkiv, Ukraine
| | - Volodymyr Prokopiuk
- Department of Cryoendocrinology, Institute for Problems of Cryobiology and Cryomedicine, National Academy of Sciences of Ukraine, Kharkiv, Ukraine
| | - Serhii Yershov
- Department of Cryoendocrinology, Institute for Problems of Cryobiology and Cryomedicine, National Academy of Sciences of Ukraine, Kharkiv, Ukraine
| | - Galyna Bozhok
- Department of Cryoendocrinology, Institute for Problems of Cryobiology and Cryomedicine, National Academy of Sciences of Ukraine, Kharkiv, Ukraine
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8
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Sanjanwala D, Londhe V, Trivedi R, Bonde S, Sawarkar S, Kale V, Patravale V. Polysaccharide-based hydrogels for medical devices, implants and tissue engineering: A review. Int J Biol Macromol 2024; 256:128488. [PMID: 38043653 DOI: 10.1016/j.ijbiomac.2023.128488] [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: 06/20/2023] [Revised: 11/10/2023] [Accepted: 11/27/2023] [Indexed: 12/05/2023]
Abstract
Hydrogels are highly biocompatible biomaterials composed of crosslinked three-dimensional networks of hydrophilic polymers. Owing to their natural origin, polysaccharide-based hydrogels (PBHs) possess low toxicity, high biocompatibility and demonstrate in vivo biodegradability, making them great candidates for use in various biomedical devices, implants, and tissue engineering. In addition, many polysaccharides also show additional biological activities such as antimicrobial, anticoagulant, antioxidant, immunomodulatory, hemostatic, and anti-inflammatory, which can provide additional therapeutic benefits. The porous nature of PBHs allows for the immobilization of antibodies, aptamers, enzymes and other molecules on their surface, or within their matrix, potentiating their use in biosensor devices. Specific polysaccharides can be used to produce transparent hydrogels, which have been used widely to fabricate ocular implants. The ability of PBHs to encapsulate drugs and other actives has been utilized for making neural implants and coatings for cardiovascular devices (stents, pacemakers and venous catheters) and urinary catheters. Their high water-absorption capacity has been exploited to make superabsorbent diapers and sanitary napkins. The barrier property and mechanical strength of PBHs has been used to develop gels and films as anti-adhesive formulations for the prevention of post-operative adhesion. Finally, by virtue of their ability to mimic various body tissues, they have been explored as scaffolds and bio-inks for tissue engineering of a wide variety of organs. These applications have been described in detail, in this review.
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Affiliation(s)
- Dhruv Sanjanwala
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga (E), Mumbai 400019, Maharashtra, India; Department of Pharmaceutical Sciences, College of Pharmacy, 428 Church Street, University of Michigan, Ann Arbor, MI 48109, United States.
| | - Vaishali Londhe
- SVKM's NMIMS, Shobhaben Pratapbhai College of Pharmacy and Technology Management, V.L. Mehta Road, Vile Parle (W), Mumbai 400056, Maharashtra, India
| | - Rashmi Trivedi
- Smt. Kishoritai Bhoyar College of Pharmacy, Kamptee, Nagpur 441002, Maharashtra, India
| | - Smita Bonde
- SVKM's NMIMS, School of Pharmacy and Technology Management, Shirpur Campus, Maharashtra, India
| | - Sujata Sawarkar
- Department of Pharmaceutics, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, University of Mumbai, Mumbai 400056, Maharashtra, India
| | - Vinita Kale
- Department of Pharmaceutics, Gurunanak College of Pharmacy, Kamptee Road, Nagpur 440026, Maharashtra, India
| | - Vandana Patravale
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga (E), Mumbai 400019, Maharashtra, India.
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9
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Bulut S, Günther D, Bund M, Haats C, Bissing T, Bastard C, Wessling M, De Laporte L, Pich A. Cellular Architects at Work: Cells Building their Own Microgel Houses. Adv Healthc Mater 2023:e2302957. [PMID: 37988182 DOI: 10.1002/adhm.202302957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 11/14/2023] [Indexed: 11/23/2023]
Abstract
Microporous annealed particle (MAP) scaffolds are investigated for their application as injectable 3D constructs in the field of regenerative medicine and tissue repair. While available MAP scaffolds provide a stable interlinked matrix of microgels for cell culture, the infiltration depth and space for cells to grow inside the scaffolds is pre-determined by the void fraction during the assembly. In the case of MAP scaffolds fabricated from interlinked spherical microgels, a cellularity gradient can be observed with the highest cell density on the scaffold surface. Additionally, the interlinked microgel network limits the ability of cells to remodel their environment, which contradicts native tissue dynamics. In this work, a cell-induced interlinking method for MAP scaffold formation is established, which avoids the necessity of chemical crosslinkers and pre-engineered pores to achieve micro- or macropores in these 3D frameworks. This method enables cells to self-organize with microgels into dynamic tissue constructs, which can be further controlled by altering the microgel properties, the cell/microgel ratio, and well shape. To form a cell-induced interlinked scaffold, the cells are mixed with dextran-based microgels and function as a glue between the microgels, resulting in a more homogenous cell distribution throughout the scaffold with efficient cell-cell interactions.
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Affiliation(s)
- Selin Bulut
- DWI - Leibniz Institute for Interactive Materials e. V, RWTH Aachen University, Forckenbeckstraße 50, 52074, Aachen, Germany
- Functional and Interactive Polymers, Institute of Technical and Macromolecular Chemistry (ITMC), RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany
| | - Daniel Günther
- DWI - Leibniz Institute for Interactive Materials e. V, RWTH Aachen University, Forckenbeckstraße 50, 52074, Aachen, Germany
- Advanced Materials for Biomedicine (AMB), Institute of Technical and Macromolecular Chemistry (ITMC), RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany
- Advanced Materials for Biomedicine (AMB), Institute of Applied Medical Engineering (AME), University Hospital RWTH Aachen, Center for Biohybrid Medical Systems (CBMS), Forckenbeckstraße 55, 52074, Aachen, Germany
| | - Michelle Bund
- DWI - Leibniz Institute for Interactive Materials e. V, RWTH Aachen University, Forckenbeckstraße 50, 52074, Aachen, Germany
- Functional and Interactive Polymers, Institute of Technical and Macromolecular Chemistry (ITMC), RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany
| | - Christina Haats
- DWI - Leibniz Institute for Interactive Materials e. V, RWTH Aachen University, Forckenbeckstraße 50, 52074, Aachen, Germany
- Advanced Materials for Biomedicine (AMB), Institute of Technical and Macromolecular Chemistry (ITMC), RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany
| | - Thomas Bissing
- DWI - Leibniz Institute for Interactive Materials e. V, RWTH Aachen University, Forckenbeckstraße 50, 52074, Aachen, Germany
- Functional and Interactive Polymers, Institute of Technical and Macromolecular Chemistry (ITMC), RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany
| | - Céline Bastard
- DWI - Leibniz Institute for Interactive Materials e. V, RWTH Aachen University, Forckenbeckstraße 50, 52074, Aachen, Germany
- Advanced Materials for Biomedicine (AMB), Institute of Technical and Macromolecular Chemistry (ITMC), RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany
- Advanced Materials for Biomedicine (AMB), Institute of Applied Medical Engineering (AME), University Hospital RWTH Aachen, Center for Biohybrid Medical Systems (CBMS), Forckenbeckstraße 55, 52074, Aachen, Germany
| | - Matthias Wessling
- DWI - Leibniz Institute for Interactive Materials e. V, RWTH Aachen University, Forckenbeckstraße 50, 52074, Aachen, Germany
- Department of Chemical Process Engineering (AVT.CVT), RWTH Aachen University, Forckenbeckstraße 51, 52074, Aachen, Germany
| | - Laura De Laporte
- DWI - Leibniz Institute for Interactive Materials e. V, RWTH Aachen University, Forckenbeckstraße 50, 52074, Aachen, Germany
- Advanced Materials for Biomedicine (AMB), Institute of Technical and Macromolecular Chemistry (ITMC), RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany
- Advanced Materials for Biomedicine (AMB), Institute of Applied Medical Engineering (AME), University Hospital RWTH Aachen, Center for Biohybrid Medical Systems (CBMS), Forckenbeckstraße 55, 52074, Aachen, Germany
| | - Andrij Pich
- DWI - Leibniz Institute for Interactive Materials e. V, RWTH Aachen University, Forckenbeckstraße 50, 52074, Aachen, Germany
- Functional and Interactive Polymers, Institute of Technical and Macromolecular Chemistry (ITMC), RWTH Aachen University, Worringerweg 2, 52074, Aachen, Germany
- Aachen Maastricht Institute for Biobased Materials (AMIBM), Maastricht University, Brightlands Chemelot Campus, Urmonderbaan 22, Geleen, 6167 RD, Netherlands
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10
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Patrocinio D, Galván-Chacón V, Gómez-Blanco JC, Miguel SP, Loureiro J, Ribeiro MP, Coutinho P, Pagador JB, Sanchez-Margallo FM. Biopolymers for Tissue Engineering: Crosslinking, Printing Techniques, and Applications. Gels 2023; 9:890. [PMID: 37998980 PMCID: PMC10670821 DOI: 10.3390/gels9110890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 11/02/2023] [Accepted: 11/07/2023] [Indexed: 11/25/2023] Open
Abstract
Currently, tissue engineering has been dedicated to the development of 3D structures through bioprinting techniques that aim to obtain personalized, dynamic, and complex hydrogel 3D structures. Among the different materials used for the fabrication of such structures, proteins and polysaccharides are the main biological compounds (biopolymers) selected for the bioink formulation. These biomaterials obtained from natural sources are commonly compatible with tissues and cells (biocompatibility), friendly with biological digestion processes (biodegradability), and provide specific macromolecular structural and mechanical properties (biomimicry). However, the rheological behaviors of these natural-based bioinks constitute the main challenge of the cell-laden printing process (bioprinting). For this reason, bioprinting usually requires chemical modifications and/or inter-macromolecular crosslinking. In this sense, a comprehensive analysis describing these biopolymers (natural proteins and polysaccharides)-based bioinks, their modifications, and their stimuli-responsive nature is performed. This manuscript is organized into three sections: (1) tissue engineering application, (2) crosslinking, and (3) bioprinting techniques, analyzing the current challenges and strengths of biopolymers in bioprinting. In conclusion, all hydrogels try to resemble extracellular matrix properties for bioprinted structures while maintaining good printability and stability during the printing process.
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Affiliation(s)
- David Patrocinio
- CCMIJU, Bioengineering and Health Technologies, Jesus Usón Minimally Invasive Surgery Center, 10071 Cáceres, Spain; (D.P.); (V.G.-C.); (J.B.P.)
| | - Victor Galván-Chacón
- CCMIJU, Bioengineering and Health Technologies, Jesus Usón Minimally Invasive Surgery Center, 10071 Cáceres, Spain; (D.P.); (V.G.-C.); (J.B.P.)
| | - J. Carlos Gómez-Blanco
- CCMIJU, Bioengineering and Health Technologies, Jesus Usón Minimally Invasive Surgery Center, 10071 Cáceres, Spain; (D.P.); (V.G.-C.); (J.B.P.)
| | - Sonia P. Miguel
- CPIRN-IPG, Center of Potential and Innovation of Natural Resources, Polytechnic of Guarda, 6300-559 Guarda, Portugal (M.P.R.)
- CICS-UBI, Health Science Research Center, University of Beira Interior, 6201-506 Covilhã, Portugal
| | - Jorge Loureiro
- CPIRN-IPG, Center of Potential and Innovation of Natural Resources, Polytechnic of Guarda, 6300-559 Guarda, Portugal (M.P.R.)
| | - Maximiano P. Ribeiro
- CPIRN-IPG, Center of Potential and Innovation of Natural Resources, Polytechnic of Guarda, 6300-559 Guarda, Portugal (M.P.R.)
- CICS-UBI, Health Science Research Center, University of Beira Interior, 6201-506 Covilhã, Portugal
| | - Paula Coutinho
- CPIRN-IPG, Center of Potential and Innovation of Natural Resources, Polytechnic of Guarda, 6300-559 Guarda, Portugal (M.P.R.)
- CICS-UBI, Health Science Research Center, University of Beira Interior, 6201-506 Covilhã, Portugal
| | - J. Blas Pagador
- CCMIJU, Bioengineering and Health Technologies, Jesus Usón Minimally Invasive Surgery Center, 10071 Cáceres, Spain; (D.P.); (V.G.-C.); (J.B.P.)
- CIBER CV, Centro de Investigación Biomédica en Red—Enfermedades Cardiovasculares, 28029 Madrid, Spain;
| | - Francisco M. Sanchez-Margallo
- CIBER CV, Centro de Investigación Biomédica en Red—Enfermedades Cardiovasculares, 28029 Madrid, Spain;
- Scientific Direction, Jesus Usón Minimally Invasive Surgery Center, 10071 Cáceres, Spain
- TERAV/ISCIII, Red Española de Terapias Avanzadas, Instituto de Salud Carlos III (RICORS, RD21/0017/0029), 28029 Madrid, Spain
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11
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Dellaquila A, Dujardin C, Le Bao C, Chaumeton C, Carré A, Le Guilcher C, Lam F, Simon-Yarza T. Fibroblasts mediate endothelium response to angiogenic cues in a newly developed 3D stroma engineered model. BIOMATERIALS ADVANCES 2023; 154:213636. [PMID: 37778292 DOI: 10.1016/j.bioadv.2023.213636] [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: 05/11/2023] [Revised: 08/30/2023] [Accepted: 09/20/2023] [Indexed: 10/03/2023]
Abstract
Three-dimensional stroma engineered models would enable fundamental and applicative studies of human tissues interaction and remodeling in both physiological and pathological conditions. In this work, we propose a 3D vascularized stroma model to be used as in vitro platform for drug testing. A pullulan/dextran-based porous scaffold containing pre-patterned microchannels of 100 μm diameter is used for co-culturing of fibroblasts within the matrix pores and endothelial cells to form the lumen. Optical clearing of the constructs by hyperhydration allows for in-depth imaging of the model up to 1 mm by lightsheet and confocal microscopy. Our 3D vascularized stroma model allows for higher viability, metabolism and cytokines expression compared to a monocultured vascular model. Stroma-endothelium cross-talk is then investigated by exposing the system to pro and anti-angiogenic molecules. The results highlight the protective role played by fibroblasts on the vasculature, as demonstrated by decreased cytotoxicity, restoration of nitric oxide levels upon challenge, and sustained expression of endothelial markers CD31, vWF and VEGF. Our tissue model provides a 3D engineered platform for in vitro studies of stroma remodeling in angiogenesis-driven events, known to be a leading mechanism in diseased conditions, such as metastatic cancers, retinopathies and ischemia, and to investigate related potential therapies.
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Affiliation(s)
- Alessandra Dellaquila
- Université Paris Cité, Université Sorbonne Paris Nord, Laboratory for Vascular Translational Science, INSERM U1148, X. Bichat Hospital, Paris 75018, France.
| | - Chloé Dujardin
- Université Paris Cité, Université Sorbonne Paris Nord, Laboratory for Vascular Translational Science, INSERM U1148, X. Bichat Hospital, Paris 75018, France
| | - Chau Le Bao
- Université Paris Cité, Université Sorbonne Paris Nord, Laboratory for Vascular Translational Science, INSERM U1148, X. Bichat Hospital, Paris 75018, France
| | - Chloé Chaumeton
- Sorbonne Université, Institute of Biology Paris-Seine, Paris 75005, France
| | - Albane Carré
- Université Paris Cité, Université Sorbonne Paris Nord, Laboratory for Vascular Translational Science, INSERM U1148, X. Bichat Hospital, Paris 75018, France
| | - Camille Le Guilcher
- Université Paris Cité, Université Sorbonne Paris Nord, Laboratory for Vascular Translational Science, INSERM U1148, X. Bichat Hospital, Paris 75018, France
| | - France Lam
- Sorbonne Université, Institute of Biology Paris-Seine, Paris 75005, France
| | - Teresa Simon-Yarza
- Université Paris Cité, Université Sorbonne Paris Nord, Laboratory for Vascular Translational Science, INSERM U1148, X. Bichat Hospital, Paris 75018, France.
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12
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Jung SA, Malyaran H, Demco DE, Manukanc A, Häser LS, Kučikas V, van Zandvoort M, Neuss S, Pich A. Fibrin-Dextran Hydrogels with Tunable Porosity and Mechanical Properties. Biomacromolecules 2023; 24:3972-3984. [PMID: 37574715 DOI: 10.1021/acs.biomac.3c00269] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Hydrogels as scaffolds in tissue engineering have gained increasing attention in recent years. Natural hydrogels, e.g., collagen or fibrin, are limited by their weak mechanical properties and fast degradation, whereas synthetic hydrogels face issues with biocompatibility and biodegradation. Therefore, combining natural and synthetic polymers to design hydrogels with tunable mechanical stability and cell affinity for biomedical applications is of interest. By using fibrin with its excellent cell compatibility and dextran with controllable mechanical properties, a novel bio-based hydrogel can be formed. Here, we synthesized fibrin and dextran-methacrylate (MA)-based hydrogels with tailorable mechanical properties, controllable degradation, variable pore sizes, and ability to support cell proliferation. The hydrogels are formed through in situ gelation of fibrinogen and dextran-MA with thrombin and dithiothreitol. Swelling and nuclear magnetic resonance diffusometry measurements showed that the water uptake and mesh sizes of fabricated hydrogels decrease with increasing dextran-MA concentrations. Cell viability tests confirm that these hydrogels exhibit no cytotoxic effect.
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Affiliation(s)
- Shannon Anna Jung
- DWI-Leibniz Institute for Interactive Materials, RWTH Aachen University, Forckenbeckstraße 50, Aachen 52074, Germany
- Institute for Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 2, Aachen 52074, Germany
| | - Hanna Malyaran
- Helmholtz Institute for Biomedical Engineering, BioInterface Group, RWTH Aachen University, Pauwelsstrasse 20, Aachen 52074, Germany
- Interdisciplinary Centre for Clinical Research, RWTH Aachen University, Pauwelsstrasse 30, Aachen 52074, Germany
| | - Dan Eugen Demco
- DWI-Leibniz Institute for Interactive Materials, RWTH Aachen University, Forckenbeckstraße 50, Aachen 52074, Germany
| | - Anna Manukanc
- DWI-Leibniz Institute for Interactive Materials, RWTH Aachen University, Forckenbeckstraße 50, Aachen 52074, Germany
- Institute for Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 2, Aachen 52074, Germany
| | - Leonie Sophie Häser
- DWI-Leibniz Institute for Interactive Materials, RWTH Aachen University, Forckenbeckstraße 50, Aachen 52074, Germany
- Institute for Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 2, Aachen 52074, Germany
| | - Vytautas Kučikas
- Institute for Molecular Cardiovascular Research (IMCAR), RWTH Aachen University, Pauwelsstrasse 30, Aachen 52074, Germany
| | - Marc van Zandvoort
- Institute for Molecular Cardiovascular Research (IMCAR), RWTH Aachen University, Pauwelsstrasse 30, Aachen 52074, Germany
- Department of Genetics and Cell Biology, GROW, CARIM, MHeNS, Maastricht University, Maastricht 6200 MD, The Netherlands
| | - Sabine Neuss
- Helmholtz Institute for Biomedical Engineering, BioInterface Group, RWTH Aachen University, Pauwelsstrasse 20, Aachen 52074, Germany
- Institute of Pathology, RWTH Aachen University, Pauwelsstrasse 30, Aachen 52074, Germany
| | - Andrij Pich
- DWI-Leibniz Institute for Interactive Materials, RWTH Aachen University, Forckenbeckstraße 50, Aachen 52074, Germany
- Institute for Technical and Macromolecular Chemistry, RWTH Aachen University, Worringerweg 2, Aachen 52074, Germany
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13
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Bubli SY, Smolag M, Blackwell E, Lin YC, Tsavalas JG, Li L. Inducing an LCST in hydrophilic polysaccharides via engineered macromolecular hydrophobicity. Sci Rep 2023; 13:14896. [PMID: 37689784 PMCID: PMC10492858 DOI: 10.1038/s41598-023-41947-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 09/04/2023] [Indexed: 09/11/2023] Open
Abstract
Thermoresponsive polysaccharide-based materials with tunable transition temperatures regulating phase-separated microdomains offer substantial opportunities in tissue engineering and biomedical applications. To develop novel synthetic thermoresponsive polysaccharides, we employed versatile chemical routes to attach hydrophobic adducts to the backbone of hydrophilic dextran and gradually increased the hydrophobicity of the dextran chains to engineer phase separation. Conjugating methacrylate moieties to the dextran backbone yielded a continuous increase in macromolecular hydrophobicity that induced a reversible phase transition whose lower critical solution temperature can be modulated via variations in polysaccharide concentration, molecular weight, degree of methacrylation, ionic strength, surfactant, urea and Hofmeister salts. The phase separation is driven by increased hydrophobic interactions of methacrylate residues, where the addition of surfactant and urea disassociates hydrophobic interactions and eliminates phase transition. Morphological characterization of phase-separated dextran solutions via scanning electron and flow imaging microscopy revealed the formation of microdomains upon phase transition. These novel thermoresponsive dextrans exhibited promising cytocompatibility in cell culture where the phase transition exerted negligible effects on the attachment, spreading and proliferation of human dermal fibroblasts. Leveraging the conjugated methacrylate groups, we employed photo-initiated radical polymerization to generate phase-separated hydrogels with distinct microdomains. Our bottom-up approach to engineering macromolecular hydrophobicity of conventional hydrophilic, non-phase separating dextrans to induce robust phase transition and generate thermoresponsive phase-separated biomaterials will find applications in mechanobiology, tissue repair and regenerative medicine.
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Affiliation(s)
- Saniya Yesmin Bubli
- Department of Chemical Engineering and Bioengineering, University of New Hampshire, Durham, NH, 03824, USA
| | - Matthew Smolag
- Department of Chemical Engineering and Bioengineering, University of New Hampshire, Durham, NH, 03824, USA
| | - Ellen Blackwell
- Department of Chemical Engineering and Bioengineering, University of New Hampshire, Durham, NH, 03824, USA
| | - Yung-Chun Lin
- Department of Chemistry, University of New Hampshire, Durham, NH, 03824, USA
| | - John G Tsavalas
- Department of Chemistry, University of New Hampshire, Durham, NH, 03824, USA
- Materials Science Program, University of New Hampshire, Durham, NH, 03824, USA
| | - Linqing Li
- Department of Chemical Engineering and Bioengineering, University of New Hampshire, Durham, NH, 03824, USA.
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14
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Cheng A, Liu Y, Song HQ. Elevating nucleic acid delivery via a stable anionic peptide-dextran ternary system. Biointerphases 2023; 18:051001. [PMID: 37791728 DOI: 10.1116/6.0003084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 09/12/2023] [Indexed: 10/05/2023] Open
Abstract
Nucleic acid-based therapies hold promise for treating previously intractable diseases but require effective delivery vectors to protect the therapeutic agents and ensure efficient transfection. Cationic polymeric vectors are particularly notable for their adaptability, high transfection efficiency, and low cost, but their positive charge often attracts blood proteins, causing aggregation and reduced transfection efficiency. Addressing this, we designed an anionic peptide-grafted dextran (Dex-LipE5H) to serve as a cross-linkable coating to bolster the stability of cationic polymer/nucleic acid complexes. The Dex-LipE5H was synthesized through a Michael addition reaction, combining an anionic peptide (LipE5H) with dextran modified by divinyl sulfone. We demonstrated Dex-lipE5H utility in a novel ternary nucleic acid delivery system, CDex-LipE5H/PEI/nucleic acid. CDex-LipE5H/PEI/nucleic acid demonstrated lower cytotoxicity and superior anti-protein absorption ability compared to PEI/pDNA and Dex-LipE5H/PEI/pDNA. Most notably, the crosslinked CDex-LipE5H/PEI/pDNA demonstrated remarkable transfection performance in HepG2 cells, which poses significant transfection challenges, even in a medium with 20% serum. This system's effective siRNA interference performance was further validated through a PCSK9 gene knockdown assay. This investigation provides novel insights and contributes to the design of cost-effective, next-generation nucleic acid delivery systems with enhanced blood stability and transfection efficiency.
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Affiliation(s)
- Alex Cheng
- Department of Chemical Engineering, University of Illinois at Chicago, Chicago, Illinois 60607
| | - Ying Liu
- Department of Chemical Engineering, University of Illinois at Chicago, Chicago, Illinois 60607
| | - Hai-Qing Song
- Department of Chemical Engineering, University of Illinois at Chicago, Chicago, Illinois 60607
- Engineering Research Center of Clinical Functional Materials and Diagnosis and Treatment Devices of Zhejiang Province, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325000, China
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15
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Farzamfar S, Richer M, Rahmani M, Naji M, Aleahmad M, Chabaud S, Bolduc S. Biological Macromolecule-Based Scaffolds for Urethra Reconstruction. Biomolecules 2023; 13:1167. [PMID: 37627232 PMCID: PMC10452429 DOI: 10.3390/biom13081167] [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: 06/12/2023] [Revised: 07/17/2023] [Accepted: 07/17/2023] [Indexed: 08/27/2023] Open
Abstract
Urethral reconstruction strategies are limited with many associated drawbacks. In this context, the main challenge is the unavailability of a suitable tissue that can endure urine exposure. However, most of the used tissues in clinical practices are non-specialized grafts that finally fail to prevent urine leakage. Tissue engineering has offered novel solutions to address this dilemma. In this technology, scaffolding biomaterials characteristics are of prime importance. Biological macromolecules are naturally derived polymers that have been extensively studied for various tissue engineering applications. This review discusses the recent advances, applications, and challenges of biological macromolecule-based scaffolds in urethral reconstruction.
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Affiliation(s)
- Saeed Farzamfar
- Centre de Recherche en Organogénèse Expérimentale/LOEX, Regenerative Medicine Division, CHU de Québec-Université Laval Research Center, Quebec, QC G1V 4G2, Canada; (S.F.); (M.R.); (S.C.)
| | - Megan Richer
- Centre de Recherche en Organogénèse Expérimentale/LOEX, Regenerative Medicine Division, CHU de Québec-Université Laval Research Center, Quebec, QC G1V 4G2, Canada; (S.F.); (M.R.); (S.C.)
| | - Mahya Rahmani
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran 1983963113, Iran;
| | - Mohammad Naji
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran 1983963113, Iran;
| | - Mehdi Aleahmad
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran 1417613151, Iran;
| | - Stéphane Chabaud
- Centre de Recherche en Organogénèse Expérimentale/LOEX, Regenerative Medicine Division, CHU de Québec-Université Laval Research Center, Quebec, QC G1V 4G2, Canada; (S.F.); (M.R.); (S.C.)
| | - Stéphane Bolduc
- Centre de Recherche en Organogénèse Expérimentale/LOEX, Regenerative Medicine Division, CHU de Québec-Université Laval Research Center, Quebec, QC G1V 4G2, Canada; (S.F.); (M.R.); (S.C.)
- Department of Surgery, Faculty of Medicine, Laval University, Quebec, QC G1V 0A6, Canada
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16
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Canciani E, Straticò P, Varasano V, Dellavia C, Sciarrini C, Petrizzi L, Rimondini L, Varoni EM. Polylevolysine and Fibronectin-Loaded Nano-Hydroxyapatite/PGLA/Dextran-Based Scaffolds for Improving Bone Regeneration: A Histomorphometric in Animal Study. Int J Mol Sci 2023; 24:ijms24098137. [PMID: 37175849 PMCID: PMC10179305 DOI: 10.3390/ijms24098137] [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: 03/11/2023] [Revised: 04/21/2023] [Accepted: 04/27/2023] [Indexed: 05/15/2023] Open
Abstract
The regeneration of large bone defects is still demanding, requiring biocompatible scaffolds, with osteoconductive and osteoinductive properties. This study aimed to assess the pre-clinical efficacy of a nano-hydroxyapatite (nano-HA)/PGLA/dextran-based scaffold loaded with Polylevolysine (PLL) and fibronectin (FN), intended for bone regeneration of a critical-size tibial defect, using an ovine model. After physicochemical characterization, the scaffolds were implanted in vivo, producing two monocortical defects on both tibiae of ten adult sheep, randomly divided into two groups to be euthanized at three and six months after surgery. The proximal left and right defects were filled, respectively, with the test scaffold (nano-HA/PGLA/dextran-based scaffold loaded with PLL and FN) and the control scaffold (nano-HA/PGLA/dextran-based scaffold not loaded with PLL and FN); the distal defects were considered negative control sites, not receiving any scaffold. Histological and histomorphometric analyses were performed to quantify the bone ingrowth and residual material 3 and 6 months after surgery. In both scaffolds, the morphological analyses, at the SEM, revealed the presence of submicrometric crystals on the surfaces and within the scaffolds, while optical microscopy showed a macroscopic 3D porous architecture. XRD confirmed the presence of nano-HA with a high level of crystallinity degree. At the histological and histomorphometric evaluation, new bone formation and residual biomaterial were detectable inside the defects 3 months after intervention, without differences between the scaffolds. At 6 months, the regenerated bone was significantly higher in the defects filled with the test scaffold (loaded with PLL and FN) than in those filled with the control scaffold, while the residual material was higher in correspondence to the control scaffold. Nano-HA/PGLA/dextran-based scaffolds loaded with PLL and FN appear promising in promoting bone regeneration in critical-size defects, showing balanced regenerative and resorbable properties to support new bone deposition.
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Affiliation(s)
- Elena Canciani
- Department of Health Sciences, Università del Piemonte Orientale, 28100 Novara, Italy
| | - Paola Straticò
- Department of Veterinary Medicine, University of Teramo, 64100 Teramo, Italy
| | - Vincenzo Varasano
- Department of Veterinary Medicine, University of Teramo, 64100 Teramo, Italy
| | - Claudia Dellavia
- Department of Biomedical, Surgical and Dental Sciences, Università degli Studi di Milano, 20142 Milan, Italy
| | - Chiara Sciarrini
- Department of Veterinary Medicine, University of Teramo, 64100 Teramo, Italy
| | - Lucio Petrizzi
- Department of Veterinary Medicine, University of Teramo, 64100 Teramo, Italy
| | - Lia Rimondini
- Department of Health Sciences, Università del Piemonte Orientale, 28100 Novara, Italy
| | - Elena M Varoni
- Department of Biomedical, Surgical and Dental Sciences, Università degli Studi di Milano, 20142 Milan, Italy
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17
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Samrot AV, Sathiyasree M, Rahim SBA, Renitta RE, Kasipandian K, Krithika Shree S, Rajalakshmi D, Shobana N, Dhiva S, Abirami S, Visvanathan S, Mohanty BK, Sabesan GS, Chinni SV. Scaffold Using Chitosan, Agarose, Cellulose, Dextran and Protein for Tissue Engineering-A Review. Polymers (Basel) 2023; 15:polym15061525. [PMID: 36987305 PMCID: PMC10054888 DOI: 10.3390/polym15061525] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 01/27/2023] [Accepted: 01/27/2023] [Indexed: 03/30/2023] Open
Abstract
Biological macromolecules like polysaccharides/proteins/glycoproteins have been widely used in the field of tissue engineering due to their ability to mimic the extracellular matrix of tissue. In addition to this, these macromolecules are found to have higher biocompatibility and no/lesser toxicity when compared to synthetic polymers. In recent years, scaffolds made up of proteins, polysaccharides, or glycoproteins have been highly used due to their tensile strength, biodegradability, and flexibility. This review is about the fabrication methods and applications of scaffolds made using various biological macromolecules, including polysaccharides like chitosan, agarose, cellulose, and dextran and proteins like soy proteins, zein proteins, etc. Biopolymer-based nanocomposite production and its application and limitations are also discussed in this review. This review also emphasizes the importance of using natural polymers rather than synthetic ones for developing scaffolds, as natural polymers have unique properties, like high biocompatibility, biodegradability, accessibility, stability, absence of toxicity, and low cost.
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Affiliation(s)
- Antony V Samrot
- School of Bioscience, Faculty of Medicine, Bioscience and Nursing, MAHSA University, Jalan SP2, Bandar Saujana Putra, Jenjarom 42610, Selangor, Malaysia
| | - Mahendran Sathiyasree
- Department of Biotechnology, School of Bio and Chemical Engineering Sathyabama Institute of Science and Technology, Chennai 600119, Tamil Nadu, India
| | - Sadiq Batcha Abdul Rahim
- Faculty of Engineering, Built Environment and IT, MAHSA University, Jalan SP2, Bandar Saujana Putra, Jenjarom 42610, Selangor, Malaysia
| | - Robinson Emilin Renitta
- Department of Food Processing, Karunya Institute of Technology and Science, Coimbatore 641114, Tamil Nadu, India
| | - Kasirajan Kasipandian
- Faculty of Engineering, Built Environment and IT, MAHSA University, Jalan SP2, Bandar Saujana Putra, Jenjarom 42610, Selangor, Malaysia
| | - Sivasuriyan Krithika Shree
- Department of Biotechnology, School of Bio and Chemical Engineering Sathyabama Institute of Science and Technology, Chennai 600119, Tamil Nadu, India
| | - Deenadhayalan Rajalakshmi
- Department of Biotechnology, School of Bio and Chemical Engineering Sathyabama Institute of Science and Technology, Chennai 600119, Tamil Nadu, India
| | - Nagarajan Shobana
- Department of Biotechnology, School of Bio and Chemical Engineering Sathyabama Institute of Science and Technology, Chennai 600119, Tamil Nadu, India
| | - Shanmugaboopathi Dhiva
- Department of Microbiology, Sree Narayana College, Alathur, Palakkad 678682, Kerala, India
| | - Sasi Abirami
- Department of Microbiology, Kamaraj College, Thoothukudi, Affiliated to Manonmaniam Sundaranar University, Thoothukudi 628003, Tamil Nadu, India
| | - Sridevi Visvanathan
- Unit of Biochemistry, Faculty of Medicine, AIMST University, Semeling, Bedong 08100, Kedah Darul Aman, Malaysia
| | - Basanta Kumar Mohanty
- Faculty of Medicine, Manipal University College Malaysia (MUCM), Jalan Padang Jambu, Bukit Baru 75150, Melaka, Malaysia
| | - Gokul Shankar Sabesan
- Faculty of Medicine, Manipal University College Malaysia (MUCM), Jalan Padang Jambu, Bukit Baru 75150, Melaka, Malaysia
| | - Suresh V Chinni
- Department of Biochemistry, Faculty of Medicine, Bioscience and Nursing, MAHSA University, Jalan SP2, Bandar Saujana Putra, Jenjarom 42610, Selangor, Malaysia
- Department of Periodontics, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai 602105, Tamil Nadu, India
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18
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Nicu R, Ciolacu DE, Petrovici AR, Rusu D, Avadanei M, Mihaila AC, Butoi E, Ciolacu F. 3D Matrices for Enhanced Encapsulation and Controlled Release of Anti-Inflammatory Bioactive Compounds in Wound Healing. Int J Mol Sci 2023; 24:ijms24044213. [PMID: 36835619 PMCID: PMC9959390 DOI: 10.3390/ijms24044213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 02/13/2023] [Accepted: 02/17/2023] [Indexed: 02/22/2023] Open
Abstract
Current trends in the development of wound dressings are oriented towards the use of biopolymer-based materials, due to their unique properties such as non-toxicity, hydrophilicity, biocompatibility and biodegradability, properties that have advantageous therapeutic characteristics. In this regard, the present study aims to develop hydrogels based on cellulose and dextran (CD) and to reveal their anti-inflammatory performance. This purpose is achieved by incorporating plant bioactive polyphenols (PFs) in CD hydrogels. The assessments include establishing the structural characteristics using attenuated total reflection Fourier transformed infrared (ATR-FTIR) spectroscopy, the morphology by scanning electron microscopy (SEM), the swelling degree of hydrogels, the PFs incorporation/release kinetics and the hydrogels' cytotoxicity, together with evaluation of the anti-inflammatory properties of PFs-loaded hydrogels. The results show that the presence of dextran has a positive impact on the hydrogel's structure by decreasing the pore size at the same time as increasing the uniformity and interconnectivity of the pores. In addition, there is an increased degree of swelling and of the encapsulation capacity of PFs, with the increase of the dextran content in hydrogels. The kinetics of PFs released by hydrogels was studied according to the Korsmeyer-Peppas model, and it was observed that the transport mechanisms depend on hydrogels' composition and morphology. Furthermore, CD hydrogels have been shown to promote cell proliferation without cytotoxicity, by successfully culturing fibroblasts and endothelial cells on CD hydrogels (over 80% viability). The anti-inflammatory tests performed in the presence of lipopolysaccharides demonstrate the anti-inflammatory properties of the PFs-loaded hydrogels. All these results provide conclusive evidence on the acceleration of wound healing by inhibiting the inflammation process and support the use of these hydrogels encapsulated with PFs in wound healing applications.
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Affiliation(s)
- Raluca Nicu
- Department of Natural Polymers, Bioactive and Biocompatible Materials, “Petru Poni” Institute of Macromolecular Chemistry, 700487 Iasi, Romania
| | - Diana Elena Ciolacu
- Department of Natural Polymers, Bioactive and Biocompatible Materials, “Petru Poni” Institute of Macromolecular Chemistry, 700487 Iasi, Romania
- Correspondence: (D.E.C.); (F.C.); Tel.: +40-332-880-220 (D.E.C.); +40-232-278-683 (ext. 2200) (F.C.)
| | - Anca-Roxana Petrovici
- Center of Advanced Research in Bionanoconjugates and Biopolymers, “Petru Poni” Institute of Macromolecular Chemistry, 700487 Iasi, Romania
| | - Daniela Rusu
- Department of Physics of Polymers and Polymeric Materials, “Petru Poni” Institute of Macromolecular Chemistry, 700487 Iasi, Romania
| | - Mihaela Avadanei
- Department of Physical Chemistry of Polymers, “Petru Poni” Institute of Macromolecular Chemistry, 700487 Iasi, Romania
| | - Andreea Cristina Mihaila
- Biopathology and Therapy of Inflammation, Institute of Cellular Biology and Pathology “Nicolae Simionescu”, 050568 Bucuresti, Romania
| | - Elena Butoi
- Biopathology and Therapy of Inflammation, Institute of Cellular Biology and Pathology “Nicolae Simionescu”, 050568 Bucuresti, Romania
| | - Florin Ciolacu
- Department of Natural and Synthetic Polymers, “Gheorghe Asachi” Technical University of Iasi, 700050 Iasi, Romania
- Correspondence: (D.E.C.); (F.C.); Tel.: +40-332-880-220 (D.E.C.); +40-232-278-683 (ext. 2200) (F.C.)
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The Current Status, Prospects, and Challenges of Shape Memory Polymers Application in Bone Tissue Engineering. Polymers (Basel) 2023; 15:polym15030556. [PMID: 36771857 PMCID: PMC9920657 DOI: 10.3390/polym15030556] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 12/28/2022] [Accepted: 01/18/2023] [Indexed: 01/24/2023] Open
Abstract
Bone defects can occur after severe trauma, infection, or bone tumor resection surgery, which requires grafting to repair the defect when it reaches a critical size, as the bone's self-healing ability is insufficient to complete the bone repair. Natural bone grafts or artificial bone grafts, such as bioceramics, are currently used in bone tissue engineering, but the low availability of bone and high cost limit these treatments. Therefore, shape memory polymers (SMPs), which combine biocompatibility, biodegradability, mechanical properties, shape tunability, ease of access, and minimally invasive implantation, have received attention in bone tissue engineering in recent years. Here, we reviewed the various excellent properties of SMPs and their contribution to bone formation in experiments at the cellular and animal levels, respectively, especially for the repair of defects in craniomaxillofacial (CMF) and limb bones, to provide new ideas for the application of these new SMPs in bone tissue engineering.
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20
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Nimbalkar Y, Gharat SA, Tanna V, Nikam VS, Nabar S, Sawarkar SP. Modification and Functionalization of Polymers for Targeting to Bone Cancer and Bone Regeneration. Crit Rev Biomed Eng 2023; 51:21-58. [PMID: 37560878 DOI: 10.1615/critrevbiomedeng.2023043780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/11/2023]
Abstract
Bone is one of the most complex, inaccessible body structures, responsible for calcium storage and haematopoiesis. The second highest cause of death across the world is cancer. Amongst all the types of cancers, bone cancer treatment modalities are limited due to the structural complexity and inaccessibility of bones. The worldwide incidence of bone diseases and bone defects due to cancer, infection, trauma, age-related bone degeneration is increasing. Currently different conventional therapies are available for bone cancer such as chemotherapy, surgery and radiotherapy, but they have several disadvantages associated with them. Nanomedicine is being extensively researched as viable therapeutics to mitigate drug resistance in cancer therapy and promote bone regeneration. Several natural polymers such as chitosan, dextran, alginate, hyaluronic acid, and synthetic polymers like polyglycolic acid, poly(lactic-co-glycolic acid), polycaprolactone are investigated for their application in nanomedicine for bone cancer treatment and bone regeneration. Nanocarriers have shown promising results in preclinical experimental studies. However, they still face a major drawback of inadequate targetability. The paper summarizes the status of research and the progress made so far in modifications and functionalization of natural polymers for improving their site specificity and targeting for effective treatment of bone cancer and enhancing bone regeneration.
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Affiliation(s)
- Yogesh Nimbalkar
- Department of Pharmaceutics, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, University of Mumbai, Vile Parle West, Mumbai 400056 India
| | - Sankalp A Gharat
- Department of Pharmaceutics, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, University of Mumbai, Vile Parle West, Mumbai 400056 India
| | - Vidhi Tanna
- Department of Pharmaceutics, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, University of Mumbai, Vile Parle West, Mumbai 400056 India
| | - Vandana S Nikam
- Department of Pharmacology, STES's Smt. Kashibai Navale College of Pharmacy, Kondhwa, S.P. Pune University, Pune 411048, India
| | - Swapna Nabar
- Radiation Medicine Centre, Tata Memorial Hospital, Parel, Mumbai, India
| | - Sujata P Sawarkar
- Department of Pharmaceutics, SVKM's Dr. Bhanuben Nanavati College of Pharmacy, University of Mumbai, Vile Parle West, Mumbai 400056 India
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Kazemi Asl S, Rahimzadegan M, Ostadrahimi R. The recent advancement in the chitosan hybrid-based scaffolds for cardiac regeneration after myocardial infarction. Carbohydr Polym 2023; 300:120266. [DOI: 10.1016/j.carbpol.2022.120266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 10/08/2022] [Accepted: 10/23/2022] [Indexed: 11/07/2022]
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22
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Acciaretti F, Vesentini S, Cipolla L. Fabrication Strategies Towards Hydrogels for Biomedical Application: Chemical and Mechanical Insights. Chem Asian J 2022; 17:e202200797. [PMID: 36112345 PMCID: PMC9828515 DOI: 10.1002/asia.202200797] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 09/16/2022] [Indexed: 01/12/2023]
Abstract
This review aims at giving selected chemical and mechanical insights on design criteria that should be taken into account in hydrogel production for biomedical applications. Particular emphasis will be given to the chemical aspects involved in hydrogel design: macromer chemical composition, cross-linking strategies and chemistry towards "conventional" and smart/stimuli responsive hydrogels. Mechanical properties of hydrogels in view of regenerative medicine applications will also be considered.
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Affiliation(s)
- Federico Acciaretti
- Department of Biotechnology and BiosciencesUniversity of Milano – BicoccaPiazza della Scienza 220126MilanoItaly
| | - Simone Vesentini
- Department of ElectronicsInformation and BioengineeringPolitecnico di Milano (Italy)Piazza Leonardo da Vinci 3220133MilanoItaly
| | - Laura Cipolla
- Department of Biotechnology and BiosciencesUniversity of Milano – BicoccaPiazza della Scienza 220126MilanoItaly
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23
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Hybrid nanostructured gadolinium oxide-collagen-dextran polymeric hydrogel for corneal repair and regeneration. Int J Biol Macromol 2022; 224:1423-1438. [DOI: 10.1016/j.ijbiomac.2022.10.229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 10/13/2022] [Accepted: 10/24/2022] [Indexed: 11/05/2022]
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24
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Alkhursani SA, Ghobashy MM, Al-Gahtany SA, Meganid AS, Abd El-Halim SM, Ahmad Z, Khan FS, Atia GAN, Cavalu S. Application of Nano-Inspired Scaffolds-Based Biopolymer Hydrogel for Bone and Periodontal Tissue Regeneration. Polymers (Basel) 2022; 14:3791. [PMID: 36145936 PMCID: PMC9504130 DOI: 10.3390/polym14183791] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 08/28/2022] [Accepted: 08/30/2022] [Indexed: 11/17/2022] Open
Abstract
This review's objectives are to provide an overview of the various kinds of biopolymer hydrogels that are currently used for bone tissue and periodontal tissue regeneration, to list the advantages and disadvantages of using them, to assess how well they might be used for nanoscale fabrication and biofunctionalization, and to describe their production processes and processes for functionalization with active biomolecules. They are applied in conjunction with other materials (such as microparticles (MPs) and nanoparticles (NPs)) and other novel techniques to replicate physiological bone generation more faithfully. Enhancing the biocompatibility of hydrogels created from blends of natural and synthetic biopolymers can result in the creation of the best scaffold match to the extracellular matrix (ECM) for bone and periodontal tissue regeneration. Additionally, adding various nanoparticles can increase the scaffold hydrogel stability and provide a number of biological effects. In this review, the research study of polysaccharide hydrogel as a scaffold will be critical in creating valuable materials for effective bone tissue regeneration, with a future impact predicted in repairing bone defects.
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Affiliation(s)
- Sheikha A. Alkhursani
- Faculty of Science and Humanities-Jubail, Imam Abdulrahman Bin Faisal University, Jubail 31441, Saudi Arabia
| | - Mohamed Mohamady Ghobashy
- Radiation Research of Polymer Chemistry Department, National Center for Radiation Research and Technology (NCRRT), Atomic Energy Authority, Cairo 11787, Egypt
| | | | - Abeer S. Meganid
- Faculty of Science and Humanities-Jubail, Imam Abdulrahman Bin Faisal University, Jubail 31441, Saudi Arabia
| | - Shady M. Abd El-Halim
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, October 6 University, 6th of October City, Giza 12585, Egypt
| | - Zubair Ahmad
- Unit of Bee Research and Honey Production, Faculty of Science, King Khalid University, Abha 61413, Saudi Arabia
- Biology Department, College of Arts and Sciences, Dehran Al-Junub, King Khalid University, Abha 61413, Saudi Arabia
| | - Farhat S. Khan
- Biology Department, College of Arts and Sciences, Dehran Al-Junub, King Khalid University, Abha 61413, Saudi Arabia
| | - Gamal Abdel Nasser Atia
- Department of Oral Medicine, Periodontology and Diagnosis, Faculty of Dentistry, Suez Canal University, Ismailia 41522, Egypt
| | - Simona Cavalu
- Faculty of Medicine and Pharmacy, University of Oradea, P-ta 1 Decembrie 10, 410087 Oradea, Romania
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25
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Lee AW, Chang PL, Liaw SK, Lu CH, Chen JK. Inflammation-Responsive Nanovalves of Polymer-Conjugated Dextran on a Hole Array of Silicon Substrate for Controlled Antibiotic Release. Polymers (Basel) 2022; 14:polym14173611. [PMID: 36080686 PMCID: PMC9459923 DOI: 10.3390/polym14173611] [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: 07/01/2022] [Revised: 08/19/2022] [Accepted: 08/20/2022] [Indexed: 11/16/2022] Open
Abstract
Poly(methacrylic acid) (PMAA) brushes were tethered on a silicon surface possessing a 500-nm hole array via atom transfer radical polymerization after the modification of the halogen group. Dextran-biotin (DB) was sequentially immobilized on the PMAA chains to obtain a P(MAA-DB) brush surrounding the hole edges on the silicon surface. After loading antibiotics inside the holes, biphenyl-4,4′-diboronic acid (BDA) was used to cross-link the P(MAA-DB) chains through the formation of boronate esters to cap the hole and block the release of the antibiotics. The boronate esters were disassociated with reactive oxygen species (ROS) to open the holes and release the antibiotics, thus indicating a reversible association. The total amount of drug inside the chip was approximately 52.4 μg cm−2, which could be released at a rate of approximately 1.6 μg h−1 cm−2 at a ROS concentration of 10 nM. The P(MAA-DB) brush-modified chip was biocompatible without significant toxicity toward L929 cells during the antibiotic release. The inflammation-triggered antibiotic release system based on a subcutaneous implant chip not only exhibits excellent efficacy against bacteria but also excellent biocompatibility, recyclability, and sensitivity, which can be easily extended to other drug delivery systems for numerous biomedical applications without phagocytosis- and metabolism-related issues.
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Affiliation(s)
- Ai-Wei Lee
- Department of Anatomy and Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 106, Taiwan
- Department of Materials and Science Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Pao-Lung Chang
- Department of Anatomy and Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, Taipei 106, Taiwan
| | - Shien-Kuei Liaw
- Department of Electronic and Computer Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Chien-Hsing Lu
- Department of Obstetrics and Gynecology, Taichung Veterans General Hospital, Taichung 40705, Taiwan
- Ph.D. Program in Translational Medicine, Institute of Biomedical Sciences, Rong-Hsing Research Center for Translational Medicine, National Chung-Hsing University, Taichung 40227, Taiwan
- Correspondence: (C.-H.L.); (J.-K.C.); Tel.: +886-2-27376523 (J.-K.C.); Fax: +886-2-27376544 (J.-K.C.)
| | - Jem-Kun Chen
- Department of Materials and Science Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
- Correspondence: (C.-H.L.); (J.-K.C.); Tel.: +886-2-27376523 (J.-K.C.); Fax: +886-2-27376544 (J.-K.C.)
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26
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Das A, Ringu T, Ghosh S, Pramanik N. A comprehensive review on recent advances in preparation, physicochemical characterization, and bioengineering applications of biopolymers. Polym Bull (Berl) 2022; 80:7247-7312. [PMID: 36043186 PMCID: PMC9409625 DOI: 10.1007/s00289-022-04443-4] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 07/20/2022] [Accepted: 08/15/2022] [Indexed: 12/01/2022]
Abstract
Biopolymers are mainly the polymers which are created or obtained from living creatures such as plants and bacteria rather than petroleum, which has traditionally been the source of polymers. Biopolymers are chain-like molecules composed of repeated chemical blocks derived from renewable resources that may decay in the environment. The usage of biomaterials is becoming more popular as a means of reducing the use of non-renewable resources and reducing environmental pollution produced by synthetic materials. Biopolymers' biodegradability and non-toxic nature help to maintain our environment clean and safe. This study discusses how to improve the mechanical and physical characteristics of biopolymers, particularly in the realm of bioengineering. The paper begins with a fundamental introduction and progresses to a detailed examination of synthesis and a unique investigation of several recent focused biopolymers with mechanical, physical, and biological characterization. Biopolymers' unique non-toxicity, biodegradability, biocompatibility, and eco-friendly features are boosting their applications, especially in bioengineering fields, including agriculture, pharmaceuticals, biomedical, ecological, industrial, aqua treatment, and food packaging, among others, at the end of this paper. The purpose of this paper is to provide an overview of the relevance of biopolymers in smart and novel bioengineering applications. Graphical abstract The Graphical abstract represents the biological sources and applications of biopolymers. Plants, bacteria, animals, agriculture wastes, and fossils are all biological sources for biopolymers, which are chemically manufactured from biological monomer units, including sugars, amino acids, natural fats and oils, and nucleotides. Biopolymer modification (chemical or physical) is recognized as a crucial technique for modifying physical and chemical characteristics, resulting in novel materials with improved capabilities and allowing them to be explored to their full potential in many fields of application such as tissue engineering, drug delivery, agriculture, biomedical, food industries, and industrial applications.
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Affiliation(s)
- Abinash Das
- Department of Chemistry, National Institute of Technology, Arunachal Pradesh, Jote, Arunachal Pradesh 791113 India
| | - Togam Ringu
- Department of Chemistry, National Institute of Technology, Arunachal Pradesh, Jote, Arunachal Pradesh 791113 India
| | - Sampad Ghosh
- Department of Chemistry, Nalanda College of Engineering, Nalanda, Bihar 803108 India
| | - Nabakumar Pramanik
- Department of Chemistry, National Institute of Technology, Arunachal Pradesh, Jote, Arunachal Pradesh 791113 India
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27
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Wang H, Wang X, Wu D. Recent Advances of Natural Polysaccharide-based Double-network Hydrogels for Tissue Repair. Chem Asian J 2022; 17:e202200659. [PMID: 35837995 DOI: 10.1002/asia.202200659] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/08/2022] [Indexed: 11/08/2022]
Abstract
Natural polysaccharide hydrogels have been extensively explored for many years due to their outstanding biocompatibility and biodegradability, which are very promising candidates as artificial soft materials for biomedical applications. However, their inferior mechanical performances greatly limited their applications. Introduction of double-network (DN) structure has been well documented to be an efficient strategy for significant improvement of the mechanical property of hydrogels. Here, recent progress of natural polysaccharide-based DN hydrogels is reviewed from the perspective of fundamental concepts on both design rationale and preparation strategies to biomedical application in tissue repair. Retrospect of the DN-strengthened polysaccharide hydrogels can give a deep insight into the fundamental relationship of such bio-based hydrogels among structural design, mechanical properties and practical demands, thereby prompting their translation to clinical application prospects.
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Affiliation(s)
- Hufei Wang
- Institute of Chemistry Chinese Academy of Sciences, Beijing National Laboratory for Molecular Sciences, CHINA
| | - Xing Wang
- Institute of Chemistry Chinese Academy of Sciences, Beijing National Laboratory for Molecular Sciences, CHINA
| | - Decheng Wu
- Southern University of Science and Technology, Department of Biomedical Engineering, No. 1088 Xueyuan Avenue, 518055, Shenzhen, CHINA
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Pakhomov O, Gurina T, Mazaeva V, Polyakova A, Deng B, Legach E, Bozhok G. Phase transitions and mechanisms of cryoprotection of serum-/xeno-free media based on dextran and dimethyl sulfoxide. Cryobiology 2022; 107:13-22. [PMID: 35753382 DOI: 10.1016/j.cryobiol.2022.06.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 06/15/2022] [Accepted: 06/21/2022] [Indexed: 11/19/2022]
Abstract
The development of serum-/xeno-free media may help avoid the drawbacks of using serum and its components, such as probable contamination, instability of composition, or difficulty in sterilization. The objectives of this research were to investigate the use of combinations of a permeating cryoprotective agent (Me2SO) and non-permeating (polyvinyl alcohol, polyvinylpyrrolidone, polyethylene glycol, hydroxyethyl starch, dextran) polymers for cryopreservation of interstitial cells (ICs) of rat testis, and to propose the mechanism of cryoprotection of such compositions. In the course of this study, the best combination was 100 mg/ml dextran (M.m. 40 kDa) (Dex40) with 0.7 M Me2SO in Ham's F12. The ICs were additionally cooled and warmed to different end temperatures (-30, -50, -50 and -196 °C) to determine which temperature intervals contributed most to the IC loss. Then, the cryoprotective action of this serum-/xeno-free medium was investigated in comparison with serum or albumin-containing media by differential scanning calorimetry (DSC) and thermomechanical analysis (TMA). The results showed that the medium based on Dex40 did not decrease the amount of ice formed. However, it could undergo other phase separation and phase transformation to form glassy states. Potential cell-damaging physical processes such as eutectic crystallization/melting, recrystallization of NaCl and/or Me2SO derivatives, found in serum-containing media and taking place in specific temperature intervals, were not observed in the Dex40 based media. This was in good correlation with indicators of cell survival. Additionally, the application of Dex40 allowed using Me2SO in lower concentrations (0.7 M) than required for serum-containing media (1.4 M), which may decrease the toxicity of serum-/xeno-free media.
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Affiliation(s)
- Oleksandr Pakhomov
- Department of Cryoendocrinology, Institute for Problems of Cryobiology and Cryomedicine, National Academy of Sciences of Ukraine, 23 Pereyaslavskaya St, Kharkiv, 61016, Ukraine.
| | - Tatyana Gurina
- Department of Cryoendocrinology, Institute for Problems of Cryobiology and Cryomedicine, National Academy of Sciences of Ukraine, 23 Pereyaslavskaya St, Kharkiv, 61016, Ukraine.
| | - Viktoria Mazaeva
- Department of Studies of Technology for Processing Oils and Fats, Ukrainian Research Institute of Oils and Fats, National Academy of Agrarian Sciences of Ukraine, 2a Dziuby Ave, Kharkiv, 61019, Ukraine.
| | - Anna Polyakova
- Department of Cryoendocrinology, Institute for Problems of Cryobiology and Cryomedicine, National Academy of Sciences of Ukraine, 23 Pereyaslavskaya St, Kharkiv, 61016, Ukraine.
| | - Bo Deng
- Department of Physiology, Henan University of Science and Technology, 263 Kaiyuan Ave, Henan, Luoyang, 471023, China.
| | - Evgeniy Legach
- Department of Cryoendocrinology, Institute for Problems of Cryobiology and Cryomedicine, National Academy of Sciences of Ukraine, 23 Pereyaslavskaya St, Kharkiv, 61016, Ukraine.
| | - Galyna Bozhok
- Department of Cryoendocrinology, Institute for Problems of Cryobiology and Cryomedicine, National Academy of Sciences of Ukraine, 23 Pereyaslavskaya St, Kharkiv, 61016, Ukraine.
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30
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Fan J, Abedi-Dorcheh K, Sadat Vaziri A, Kazemi-Aghdam F, Rafieyan S, Sohrabinejad M, Ghorbani M, Rastegar Adib F, Ghasemi Z, Klavins K, Jahed V. A Review of Recent Advances in Natural Polymer-Based Scaffolds for Musculoskeletal Tissue Engineering. Polymers (Basel) 2022; 14:polym14102097. [PMID: 35631979 PMCID: PMC9145843 DOI: 10.3390/polym14102097] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 05/09/2022] [Accepted: 05/17/2022] [Indexed: 02/01/2023] Open
Abstract
The musculoskeletal (MS) system consists of bone, cartilage, tendon, ligament, and skeletal muscle, which forms the basic framework of the human body. This system plays a vital role in appropriate body functions, including movement, the protection of internal organs, support, hematopoiesis, and postural stability. Therefore, it is understandable that the damage or loss of MS tissues significantly reduces the quality of life and limits mobility. Tissue engineering and its applications in the healthcare industry have been rapidly growing over the past few decades. Tissue engineering has made significant contributions toward developing new therapeutic strategies for the treatment of MS defects and relevant disease. Among various biomaterials used for tissue engineering, natural polymers offer superior properties that promote optimal cell interaction and desired biological function. Natural polymers have similarity with the native ECM, including enzymatic degradation, bio-resorb and non-toxic degradation products, ability to conjugate with various agents, and high chemical versatility, biocompatibility, and bioactivity that promote optimal cell interaction and desired biological functions. This review summarizes recent advances in applying natural-based scaffolds for musculoskeletal tissue engineering.
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Affiliation(s)
- Jingzhi Fan
- Rudolfs Cimdins Riga Biomaterials Innovations and Development Centre of RTU, Institute of General Chemical Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Pulka St 3, LV-1007 Riga, Latvia;
- Baltic Biomaterials Centre of Excellence, Headquarters at Riga Technical University, Pulka St 3, LV-1007 Riga, Latvia
| | - Keyvan Abedi-Dorcheh
- Biomedical Engineering Division, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran 14117-13116, Iran; (K.A.-D.); (A.S.V.); (F.K.-A.); (S.R.); (M.S.); (M.G.); (F.R.A.); (Z.G.)
| | - Asma Sadat Vaziri
- Biomedical Engineering Division, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran 14117-13116, Iran; (K.A.-D.); (A.S.V.); (F.K.-A.); (S.R.); (M.S.); (M.G.); (F.R.A.); (Z.G.)
| | - Fereshteh Kazemi-Aghdam
- Biomedical Engineering Division, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran 14117-13116, Iran; (K.A.-D.); (A.S.V.); (F.K.-A.); (S.R.); (M.S.); (M.G.); (F.R.A.); (Z.G.)
| | - Saeed Rafieyan
- Biomedical Engineering Division, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran 14117-13116, Iran; (K.A.-D.); (A.S.V.); (F.K.-A.); (S.R.); (M.S.); (M.G.); (F.R.A.); (Z.G.)
| | - Masoume Sohrabinejad
- Biomedical Engineering Division, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran 14117-13116, Iran; (K.A.-D.); (A.S.V.); (F.K.-A.); (S.R.); (M.S.); (M.G.); (F.R.A.); (Z.G.)
| | - Mina Ghorbani
- Biomedical Engineering Division, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran 14117-13116, Iran; (K.A.-D.); (A.S.V.); (F.K.-A.); (S.R.); (M.S.); (M.G.); (F.R.A.); (Z.G.)
| | - Fatemeh Rastegar Adib
- Biomedical Engineering Division, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran 14117-13116, Iran; (K.A.-D.); (A.S.V.); (F.K.-A.); (S.R.); (M.S.); (M.G.); (F.R.A.); (Z.G.)
| | - Zahra Ghasemi
- Biomedical Engineering Division, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran 14117-13116, Iran; (K.A.-D.); (A.S.V.); (F.K.-A.); (S.R.); (M.S.); (M.G.); (F.R.A.); (Z.G.)
| | - Kristaps Klavins
- Rudolfs Cimdins Riga Biomaterials Innovations and Development Centre of RTU, Institute of General Chemical Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Pulka St 3, LV-1007 Riga, Latvia;
- Baltic Biomaterials Centre of Excellence, Headquarters at Riga Technical University, Pulka St 3, LV-1007 Riga, Latvia
- Correspondence: (K.K.); (V.J.)
| | - Vahid Jahed
- Rudolfs Cimdins Riga Biomaterials Innovations and Development Centre of RTU, Institute of General Chemical Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Pulka St 3, LV-1007 Riga, Latvia;
- Baltic Biomaterials Centre of Excellence, Headquarters at Riga Technical University, Pulka St 3, LV-1007 Riga, Latvia
- Correspondence: (K.K.); (V.J.)
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Liu J, Zhorabek F, Dai X, Huang J, Chau Y. Minimalist Design of an Intrinsically Disordered Protein-Mimicking Scaffold for an Artificial Membraneless Organelle. ACS CENTRAL SCIENCE 2022; 8:493-500. [PMID: 35505868 PMCID: PMC9052801 DOI: 10.1021/acscentsci.1c01021] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Indexed: 05/05/2023]
Abstract
Liquid-liquid phase separation (LLPS) is an emerging and universal mechanism for intracellular organization, particularly, by forming membraneless organelles (MLOs) hosting intrinsically disordered proteins (IDPs) as scaffolds. Genetic engineering is generally applied to reconstruct IDPs harboring over 100 amino acid residues. Here, we report the first design of synthetic hybrids consisting of short oligopeptides of fewer than 10 residues as "stickers" and dextran as a "spacer" to recapitulate the characteristics of IDPs, as exemplified by the multivalent FUS protein. Hybrids undergo LLPS into micron-sized liquid droplets resembling LLPS in vitro and in living cells. Moreover, the droplets formed are capable of recruiting proteins and RNAs and providing a favorable environment for a biochemical reaction with highly enriched components, thereby mimicking the function of natural MLOs. This simple yet versatile model system can help elucidate the molecular interactions implicated in MLOs and pave ways to a new type of biomimetic materials.
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Affiliation(s)
- Jianhui Liu
- Department
of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Fariza Zhorabek
- Department
of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Xin Dai
- Department
of Chemistry, The Hong Kong University of
Science and Technology, Clear Water
Bay, Kowloon, Hong Kong SAR, China
| | - Jinqing Huang
- Department
of Chemistry, The Hong Kong University of
Science and Technology, Clear Water
Bay, Kowloon, Hong Kong SAR, China
| | - Ying Chau
- Department
of Chemical and Biological Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
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Parimala Chelvi Ratnamani M, Zhang X, Wang H. A Comprehensive Assessment on the Pivotal Role of Hydrogels in Scaffold-Based Bioprinting. Gels 2022; 8:gels8040239. [PMID: 35448140 PMCID: PMC9028353 DOI: 10.3390/gels8040239] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 04/06/2022] [Accepted: 04/07/2022] [Indexed: 02/05/2023] Open
Abstract
The past a few decades have seen exponential growth in the field of regenerative medicine. What began as extirpative (complete tissue or organ removal), with little regard to the effects of tissue loss and/or disfigurement, has evolved towards fabricating engineered tissues using personalized living cells (e.g., stem cells), and customizing a matrix or structural organization to support and guide tissue development. Biofabrication, largely accomplished through three-dimensional (3D) printing technology, provides precise, controlled, and layered assemblies of cells and biomaterials, emulating the heterogenous microenvironment of the in vivo tissue architecture. This review provides a concise framework for the bio-manufacturing process and addresses the contributions of hydrogels to biological modeling. The versatility of hydrogels in bioprinting is detailed along with an extensive elaboration of their physical, mechanical, and biological properties, as well as their assets and limitations in bioprinting. The scope of various hydrogels in tissue formation has been discussed through the case studies of biofabricated 3D constructs in order to provide the readers with a glimpse into the barrier-breaking accomplishments of biomedical sciences. In the end, the restraints of bioprinting itself are discussed, accompanied with the identification of available engineering strategies to overcome them.
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Affiliation(s)
| | - Xinping Zhang
- Department of Orthopaedics, Center for Musculoskeletal Research, University of Rochester Medical Center, Rochester, NY 14642, USA;
| | - Hongjun Wang
- Department of Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ 07030, USA;
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, NJ 07030, USA
- Correspondence:
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Matsushige C, Xu X, Miyagi M, Zuo YY, Yamazaki Y. RGD-modified dextran hydrogel promotes follicle growth in three-dimensional ovarian tissue culture in mice. Theriogenology 2022; 183:120-131. [PMID: 35247849 PMCID: PMC9005264 DOI: 10.1016/j.theriogenology.2022.02.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 02/06/2022] [Accepted: 02/07/2022] [Indexed: 10/19/2022]
Abstract
In vitro follicle growth is a promising technology to preserve fertility for cancer patients. We previously developed a three-dimensional (3-D) ovarian tissue culture system supported by mouse tumor cell-derived Matrigel. When murine ovarian tissues at 14 days old were cultured in Matrigel drops, antrum formation and oocyte competence were significantly enhanced compared with those cultured without Matrigel. In this study, we tested whether nonanimal-derived dextran hydrogels can support a 3-D ovarian tissue culture. We employed chemically defined dextran hydrogels consisting of dextran polymers crosslinked with polyethylene glycol (PEG)-based cell-degradable crosslinker. To determine the optimal gel elasticity for the 3-D tissue culture, we measured Young's modulus of dextran hydrogels at four concentrations (1.75, 2.25, 2.75, and 3.25 mmol/L), and cultured ovarian tissues in these gels for 7 days. As a result, 2.25 mmol/L dextran hydrogel with Young's modulus of 224 Pa was appropriate to provide physical support as well as to promote follicle expansion in the 3-D system. To mimic the natural extracellular matrix (ECM) environment, we modified the dextran hydrogels with two bioactive factors: ECM-derived Arg-Gly-Asp (RGD) peptides as a cell-adhesive factor, and activin A. The ovarian tissues were cultured in 2.25 mmol/L dextran hydrogels under four different conditions: Activin-/RGD- (A-R-), A + R-, A-R+, and A + R+. On Day 7 of culture, follicle and oocyte sizes were significantly increased in the RGD-modified conditions compared with those without RGD. The RGD-modified hydrogels also promoted mRNA levels of steroidogenic-related genes and estradiol production in the 3-D ovarian tissue culture. In vitro maturation and developmental competence of follicular oocytes were remarkably improved in the presence of RGD. In particular, blastocyst embryos were obtained only from A-R+ or A+R+ conditions after in vitro fertilization. We also determined synergistic effects of the RGD peptides and activin A on follicle growth and oocyte development in the 3-D tissue culture. In conclusion, our results suggest that RGD-modified dextran hydrogels provide an ECM-mimetic bioactive environment to support folliculogenesis in a 3-D ovarian tissue culture system.
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Bilal M, Munir H, Khan MI, Khurshid M, Rasheed T, Rizwan K, Franco M, Iqbal HMN. Gums-based engineered bio-nanostructures for greening the 21st-century biotechnological settings. Crit Rev Food Sci Nutr 2022; 62:3913-3929. [PMID: 33427482 DOI: 10.1080/10408398.2020.1871318] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Naturally occurring plant-based gums and their engineered bio-nanostructures have gained an immense essence of excellence in several industrial, biotechnological, and biomedical sectors of the modern world. Gums derived from bio-renewable resources that follow green chemistry principles are considered green macromolecules with unique structural and functional attributes. For instance, gum mostly obtained as exudates are bio-renewable, bio-degradable, bio-compatible, sustainable, overall cost-effective, and nontoxic. Gum exudates also offer tunable attributes that play a crucial role in engineering bio-nanostructures of interest for several bio- and non-bio applications, e.g., food-related items, therapeutic molecules, sustained and controlled delivery cues, bio-sensing constructs, and so on. With particular reference to plant gum exudates, this review focuses on applied perspectives of various gums, i.e., gum Arabic, gum albizzia, gum karaya, gum tragacanth, and gum kondagogu. After a brief introduction with problem statement and opportunities, structural and physicochemical attributes of plant-based natural gums are presented. Following that, considerable stress is given to green synthesis and stabilization of gum-based bio-nanostructures. The final part of the review focuses on the bio- and non-bio related applications of various types of gums polysaccharides-oriented bio-nanostructures.
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Affiliation(s)
- Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, China
| | - Hira Munir
- Department of Biochemistry and Biotechnology, University of Gujrat, Gujrat, Pakistan
| | - Muhammad Imran Khan
- Hefei National Lab for Physical Sciences at the Microscale and the Centers for Biomedical Engineering, University of Science and Technology of China, Hefei, Anhui, China
| | - Mohsin Khurshid
- Department of Microbiology, Government College University Faisalabad, Faisalabad, Pakistan
| | - Tahir Rasheed
- School of Chemistry & Chemical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Komal Rizwan
- Department of Chemistry, University of Sahiwal, Sahiwal, Pakistan
| | - Marcelo Franco
- Department of Exact and Technological Sciences, State University of Santa Cruz, Ilhéus, Brazil
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey, Mexico
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Kretzer C, Shkodra B, Klemm P, Jordan PM, Schröder D, Cinar G, Vollrath A, Schubert S, Nischang I, Hoeppener S, Stumpf S, Banoglu E, Gladigau F, Bilancia R, Rossi A, Eggeling C, Neugebauer U, Schubert US, Werz O. Ethoxy acetalated dextran-based nanocarriers accomplish efficient inhibition of leukotriene formation by a novel FLAP antagonist in human leukocytes and blood. Cell Mol Life Sci 2021; 79:40. [PMID: 34971430 PMCID: PMC8966466 DOI: 10.1007/s00018-021-04039-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 11/08/2021] [Accepted: 11/12/2021] [Indexed: 12/13/2022]
Abstract
Leukotrienes are pro-inflammatory lipid mediators generated by 5-lipoxygenase aided by the 5-lipoxygenase-activating protein (FLAP). BRP-201, a novel benzimidazole-based FLAP antagonist, inhibits leukotriene biosynthesis in isolated leukocytes. However, like other FLAP antagonists, BRP-201 fails to effectively suppress leukotriene formation in blood, which limits its therapeutic value. Here, we describe the encapsulation of BRP-201 into poly(lactide-co-glycolide) (PLGA) and ethoxy acetalated dextran (Ace-DEX) nanoparticles (NPs), aiming to overcome these detrimental pharmacokinetic limitations and to enhance the bioactivity of BRP-201. NPs loaded with BRP-201 were produced via nanoprecipitation and the physicochemical properties of the NPs were analyzed in-depth using dynamic light scattering (size, dispersity, degradation), electrophoretic light scattering (effective charge), NP tracking analysis (size, dispersity), scanning electron microscopy (size and morphology), UV-VIS spectroscopy (drug loading), an analytical ultracentrifuge (drug release, degradation kinetics), and Raman spectroscopy (chemical attributes). Biological assays were performed to study cytotoxicity, cellular uptake, and efficiency of BRP-201-loaded NPs versus free BRP-201 to suppress leukotriene formation in primary human leukocytes and whole blood. Both PLGA- and Ace-DEX-based NPs were significantly more efficient to inhibit leukotriene formation in neutrophils versus free drug. Whole blood experiments revealed that encapsulation of BRP-201 into Ace-DEX NPs strongly increases its potency, especially upon pro-longed (≥ 5 h) incubations and upon lipopolysaccharide-challenge of blood. Finally, intravenous injection of BRP-201-loaded NPs significantly suppressed leukotriene levels in blood of mice in vivo. These results reveal the feasibility of our pharmacological approach using a novel FLAP antagonist encapsulated into Ace-DEX-based NPs with improved efficiency in blood to suppress leukotriene biosynthesis.
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Affiliation(s)
- Christian Kretzer
- Department of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, Philosophenweg 14, 07743, Jena, Germany
| | - Blerina Shkodra
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstraße 10, 07743, Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Paul Klemm
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstraße 10, 07743, Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Paul M Jordan
- Department of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, Philosophenweg 14, 07743, Jena, Germany
| | - Daniel Schröder
- Institute of Applied Optics and Biophysics, Friedrich Schiller University Jena, Max-Wien Platz 1, 07743, Jena, Germany
| | - Gizem Cinar
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstraße 10, 07743, Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Antje Vollrath
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstraße 10, 07743, Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Stephanie Schubert
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
- Department of Pharmaceutical Technology and Biopharmacy, Institute of Pharmacy, Friedrich Schiller University Jena, Lessingstraße 8, 07743, Jena, Germany
| | - Ivo Nischang
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstraße 10, 07743, Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Stephanie Hoeppener
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstraße 10, 07743, Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Steffi Stumpf
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstraße 10, 07743, Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Erden Banoglu
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Gazi University, Etiler, Yenimahalle, Ankara, 06330, Turkey
| | - Frederike Gladigau
- Leibniz Institute of Photonic Technology, Albert-Einstein-Straße 9, 07745, Jena, Germany
- Center for Sepsis Control and Care, Jena University Hospital, 07747, Jena, Germany
- Institute of Physical Chemistry and Abbe Center of Photonics, Helmholtzweg 4, 07743, Jena, Germany
| | - Rossella Bilancia
- Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, Via D. Montesano 49, 80131, Naples, Italy
| | - Antonietta Rossi
- Department of Pharmacy, School of Medicine and Surgery, University of Naples Federico II, Via D. Montesano 49, 80131, Naples, Italy
| | - Christian Eggeling
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
- Institute of Applied Optics and Biophysics, Friedrich Schiller University Jena, Max-Wien Platz 1, 07743, Jena, Germany
- Leibniz Institute of Photonic Technology, Albert-Einstein-Straße 9, 07745, Jena, Germany
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Headley Way, Oxford, OX39DS, UK
| | - Ute Neugebauer
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany
- Leibniz Institute of Photonic Technology, Albert-Einstein-Straße 9, 07745, Jena, Germany
- Center for Sepsis Control and Care, Jena University Hospital, 07747, Jena, Germany
- Institute of Physical Chemistry and Abbe Center of Photonics, Helmholtzweg 4, 07743, Jena, Germany
| | - Ulrich S Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstraße 10, 07743, Jena, Germany.
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany.
| | - Oliver Werz
- Department of Pharmaceutical/Medicinal Chemistry, Institute of Pharmacy, Friedrich Schiller University Jena, Philosophenweg 14, 07743, Jena, Germany.
- Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany.
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Kuang Y, Zhai J, Xiao Q, Zhao S, Li C. Polysaccharide/mesoporous silica nanoparticle-based drug delivery systems: A review. Int J Biol Macromol 2021; 193:457-473. [PMID: 34710474 DOI: 10.1016/j.ijbiomac.2021.10.142] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 09/30/2021] [Accepted: 10/19/2021] [Indexed: 11/16/2022]
Abstract
Mesoporous silica nanoparticles (MSNs) have been well-researched in the design and fabrication of advanced drug delivery systems (DDSs) due to their advantages such as good biocompatibility, large specific surface area and pore volume for drug loading, easily surface modification, adjusted size and good thermal/chemical stability. For MSN-based DDSs, gate materials are also necessary. And natural polysaccharides, one kind of the most abundant natural resource, have been widely applied as the "gatekeepers" in MSN-based DDSs. Polysaccharides are cheap and rich in sources with good biocompatibility, and some of them have important biological functions. In this review article, polysaccharides including chitosan, hyaluronic acid, sodium alginate and dextran, et al. are briefly introduced. And the preparation processes and properties such as controlled drug release, cancer targeting and disease diagnosis of functional polysaccharide/MSN-based DDSs are discussed.
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Affiliation(s)
- Ying Kuang
- Glyn O. Philips Hydrocolloid Research Centre at HUT, Hubei University of Technology, Wuhan, Hubei 430068, China
| | - Junjun Zhai
- Glyn O. Philips Hydrocolloid Research Centre at HUT, Hubei University of Technology, Wuhan, Hubei 430068, China
| | - Qinjian Xiao
- Glyn O. Philips Hydrocolloid Research Centre at HUT, Hubei University of Technology, Wuhan, Hubei 430068, China
| | - Si Zhao
- Glyn O. Philips Hydrocolloid Research Centre at HUT, Hubei University of Technology, Wuhan, Hubei 430068, China
| | - Cao Li
- Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei Key Laboratory of Polymer Materials, Hubei University, Wuhan 430062, China.
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Qian Y, Kumar R, Chug MK, Massoumi H, Brisbois EJ. Therapeutic Delivery of Nitric Oxide Utilizing Saccharide-Based Materials. ACS APPLIED MATERIALS & INTERFACES 2021; 13:52250-52273. [PMID: 34714640 PMCID: PMC9050970 DOI: 10.1021/acsami.1c10964] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
As a gasotransmitter, nitric oxide (NO) regulates physiological pathways and demonstrates therapeutic effects such as vascular relaxation, anti-inflammation, antiplatelet, antithrombosis, antibacterial, and antiviral properties. However, gaseous NO has high reactivity and a short half-life, so NO delivery and storage are critical questions to be solved. One way is to develop stable NO donors and the other way is to enhance the delivery and storage of NO donors from biomaterials. Most of the researchers studying NO delivery and applications are using synthetic polymeric materials, and they have demonstrated significant therapeutic effects of these NO-releasing polymeric materials on cardiovascular diseases, respiratory disease, bacterial infections, etc. However, some researchers are exploring saccharide-based materials to fulfill the same tasks as their synthetic counterparts while avoiding the concerns of biocompatibility, biodegradability, and sustainability. Saccharide-based materials are abundant in nature and are biocompatible and biodegradable, with wide applications in bioengineering, drug delivery, and therapeutic disease treatments. Saccharide-based materials have been implemented with various NO donors (like S-nitrosothiols and N-diazeniumdiolates) via both chemical and physical methods to deliver NO. These NO-releasing saccharide-based materials have exhibited controlled and sustained NO release and demonstrated biomedical applications in various diseases (respiratory, Crohn's, cardiovascular, etc.), skin or wound applications, antimicrobial treatment, bone regeneration, anticoagulation, as well as agricultural and food packaging. This review aims to highlight the studies in methods and progress in developing saccharide-based NO-releasing materials and investigating their potential applications in biomedical, bioengineering, and disease treatment.
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Affiliation(s)
- Yun Qian
- School of Chemical, Materials & Biomedical Engineering, University of Georgia, Athens, Georgia 30602, United States
| | - Rajnish Kumar
- School of Chemical, Materials & Biomedical Engineering, University of Georgia, Athens, Georgia 30602, United States
| | - Manjyot Kaur Chug
- School of Chemical, Materials & Biomedical Engineering, University of Georgia, Athens, Georgia 30602, United States
| | - Hamed Massoumi
- School of Chemical, Materials & Biomedical Engineering, University of Georgia, Athens, Georgia 30602, United States
| | - Elizabeth J Brisbois
- School of Chemical, Materials & Biomedical Engineering, University of Georgia, Athens, Georgia 30602, United States
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Re F, Sartore L, Borsani E, Ferroni M, Baratto C, Mahajneh A, Smith A, Dey K, Almici C, Guizzi P, Bernardi S, Faglia G, Magni F, Russo D. Mineralization of 3D Osteogenic Model Based on Gelatin-Dextran Hybrid Hydrogel Scaffold Bioengineered with Mesenchymal Stromal Cells: A Multiparametric Evaluation. MATERIALS 2021; 14:ma14143852. [PMID: 34300769 PMCID: PMC8306641 DOI: 10.3390/ma14143852] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/17/2021] [Accepted: 06/28/2021] [Indexed: 02/06/2023]
Abstract
Gelatin–dextran hydrogel scaffolds (G-PEG-Dx) were evaluated for their ability to activate the bone marrow human mesenchymal stromal cells (BM-hMSCs) towards mineralization. G-PEG-Dx1 and G-PEG-Dx2, with identical composition but different architecture, were seeded with BM-hMSCs in presence of fetal bovine serum or human platelet lysate (hPL) with or without osteogenic medium. G-PEG-Dx1, characterized by a lower degree of crosslinking and larger pores, was able to induce a better cell colonization than G-PEG-Dx2. At day 28, G-PEG-Dx2, with hPL and osteogenic factors, was more efficient than G-PEG-Dx1 in inducing mineralization. Scanning electron microscopy (SEM) and Raman spectroscopy showed that extracellular matrix produced by BM-hMSCs and calcium-positive mineralization were present along the backbone of the G-PEG-Dx2, even though it was colonized to a lesser degree by hMSCs than G-PEG-Dx1. These findings were confirmed by matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI-MSI), detecting distinct lipidomic signatures that were associated with the different degree of scaffold mineralization. Our data show that the architecture and morphology of G-PEG-Dx2 is determinant and better than that of G-PEG-Dx1 in promoting a faster mineralization, suggesting a more favorable and active role for improving bone repair.
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Affiliation(s)
- Federica Re
- Bone Marrow Transplant Unit, Department of Clinical and Experimental Sciences, University of Brescia, ASST Spedali Civili, Piazzale Spedali Civili 1, 25123 Brescia, Italy; (F.R.); (S.B.)
- Centro di Ricerca Emato-Oncologica AIL (CREA), ASST Spedali Civili, Piazzale Spedali Civili 1, 25123 Brescia, Italy
| | - Luciana Sartore
- Department of Mechanical and Industrial Engineering, University of Brescia, Via Branze 38, 25123 Brescia, Italy; (L.S.); (K.D.)
| | - Elisa Borsani
- Division of Anatomy and Physiopathology, Department of Clinical and Experimental Sciences, University of Brescia, Viale Europa 11, 25123 Brescia, Italy;
| | - Matteo Ferroni
- Department of Civil, Environmental, Architectural Engineering and Mathematics (DICATAM), University of Brescia, Via Valotti 9, 25123 Brescia, Italy;
- CNR-IMM Bologna, Via Gobetti 101, 40129 Bologna, Italy
| | | | - Allia Mahajneh
- Clinical Proteomics and Metabolomics Unit, Department of Medicine and Surgery, University of Milano-Bicocca, Via Raoul Follereau 3, 20854 Vedano al Lambro, Italy; (A.M.); (A.S.); (F.M.)
| | - Andrew Smith
- Clinical Proteomics and Metabolomics Unit, Department of Medicine and Surgery, University of Milano-Bicocca, Via Raoul Follereau 3, 20854 Vedano al Lambro, Italy; (A.M.); (A.S.); (F.M.)
| | - Kamol Dey
- Department of Mechanical and Industrial Engineering, University of Brescia, Via Branze 38, 25123 Brescia, Italy; (L.S.); (K.D.)
- Department of Applied Chemistry and Chemical Engineering, Faculty of Science, University of Chittagong, Chittagong 4331, Bangladesh
| | - Camillo Almici
- Laboratory for Stem Cell Manipulation and Cryopreservation, Department of Transfusion Medicine, ASST Spedali Civili, Piazzale Spedali Civili 1, 25123 Brescia, Italy;
| | - Pierangelo Guizzi
- Orthopedics and Traumatology Unit, ASST Spedali Civili, Via Papa Giovanni XXIII 4, 25063 Gardone Val Trompia, 25123 Brescia, Italy;
| | - Simona Bernardi
- Bone Marrow Transplant Unit, Department of Clinical and Experimental Sciences, University of Brescia, ASST Spedali Civili, Piazzale Spedali Civili 1, 25123 Brescia, Italy; (F.R.); (S.B.)
- Centro di Ricerca Emato-Oncologica AIL (CREA), ASST Spedali Civili, Piazzale Spedali Civili 1, 25123 Brescia, Italy
| | - Guido Faglia
- PRISM Lab, CNR-INO, 25123 Brescia, Italy; (C.B.); (G.F.)
- Department of Information Engineering (DII), University of Brescia, Via Branze 38, 25123 Brescia, Italy
| | - Fulvio Magni
- Clinical Proteomics and Metabolomics Unit, Department of Medicine and Surgery, University of Milano-Bicocca, Via Raoul Follereau 3, 20854 Vedano al Lambro, Italy; (A.M.); (A.S.); (F.M.)
| | - Domenico Russo
- Bone Marrow Transplant Unit, Department of Clinical and Experimental Sciences, University of Brescia, ASST Spedali Civili, Piazzale Spedali Civili 1, 25123 Brescia, Italy; (F.R.); (S.B.)
- Correspondence:
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Wu P, Xi X, Li R, Sun G. Engineering Polysaccharides for Tissue Repair and Regeneration. Macromol Biosci 2021; 21:e2100141. [PMID: 34219388 DOI: 10.1002/mabi.202100141] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 06/11/2021] [Indexed: 12/22/2022]
Abstract
The success of repair or regeneration depends greatly on the architecture of 3D scaffolds that finely mimic natural extracellular matrix to support cell growth and assembly. Polysaccharides have excellent biocompatibility with intrinsic biological cues and they have been extensively investigated as scaffolds for tissue engineering and regenerative medicine (TERM). The physical and biochemical structures of natural polysaccharides, however, can barely meet all the requirements of tissue-engineered scaffolds. To take advantage of their inherent properties, many innovative approaches including chemical, physical, or joint modifications have been employed to improve their properties. Recent advancement in molecular and material building technology facilitates the fabrication of advanced 3D structures with desirable properties. This review focuses on the latest progress of polysaccharide-based scaffolds for TERM, especially those that construct advanced architectures for tissue regeneration.
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Affiliation(s)
- Pingli Wu
- College of Chemistry and Environmental Science, Institute of Life Science and Green Development, Hebei University, Baoding, 071002, China
| | - Xin Xi
- Affiliated Hospital of Hebei University, College of Clinical Medicine, Institute of Life Science and Green Development, Hebei University, Baoding, 071000, China
| | - Ruochen Li
- College of Chemistry and Environmental Science, Institute of Life Science and Green Development, Hebei University, Baoding, 071002, China
| | - Guoming Sun
- College of Chemistry and Environmental Science, Institute of Life Science and Green Development, Hebei University, Baoding, 071002, China.,Affiliated Hospital of Hebei University, College of Clinical Medicine, Institute of Life Science and Green Development, Hebei University, Baoding, 071000, China
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40
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Synthesis of Novel Spiro-Tetrahydroquinoline Derivatives and Evaluation of Their Pharmacological Effects on Wound Healing. Int J Mol Sci 2021; 22:ijms22126251. [PMID: 34200731 PMCID: PMC8230376 DOI: 10.3390/ijms22126251] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 06/03/2021] [Accepted: 06/07/2021] [Indexed: 01/22/2023] Open
Abstract
A highly diastereoselective method for the synthesis of novel spiro-tetrahydroquinoline derivatives is reported here, using a one-pot reaction method. All compounds were characterized by 1H-nuclear magnetic resonance (NMR) and mass spectroscopy, and their stereo configurations were confirmed by X-ray analysis. These activities of these derivatives were then tested in human keratocyte cells. The responses of cells to treatment with selected compounds were studied using scratch analysis, and the compounds were tested in a mouse excision wound model. Three of the derivatives demonstrated significant wound-healing activities.
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41
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Aavani F, Biazar E, Heshmatipour Z, Arabameri N, Kamalvand M, Nazbar A. Applications of bacteria and their derived biomaterials for repair and tissue regeneration. Regen Med 2021; 16:581-605. [PMID: 34030458 DOI: 10.2217/rme-2020-0116] [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: 12/21/2022] Open
Abstract
Microorganisms such as bacteria and their derived biopolymers can be used in biomaterials and tissue regeneration. Various methods have been applied to regenerate damaged tissues, but using probiotics and biomaterials derived from bacteria with improved economic-production efficiency and highly applicable properties can be a new solution in tissue regeneration. Bacteria can synthesize numerous types of biopolymers. These biopolymers possess many desirable properties such as biocompatibility and biodegradability, making them good candidates for tissue regeneration. Here, we reviewed different types of bacterial-derived biopolymers and highlight their applications for tissue regeneration.
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Affiliation(s)
- Farzaneh Aavani
- Biomedical Engineering Faculty, Amirkabir University of Technology (Tehran Polytechnic), 15916-34311 Tehran, Iran
| | - Esmaeil Biazar
- Department of Biomedical Engineering, Tissue Engineering Group, Tonekabon Branch, Islamic Azad University, 46841-61167 Tonekabon, Iran
| | - Zoheir Heshmatipour
- Department of Microbiology, Tonekabon Branch, Islamic Azad University, 46841-61167 Tonekabon, Iran
| | - Nasibeh Arabameri
- Department of Microbiology, Tonekabon Branch, Islamic Azad University, 46841-61167 Tonekabon, Iran
| | - Mahshad Kamalvand
- Department of Biomedical Engineering, Tissue Engineering Group, Tonekabon Branch, Islamic Azad University, 46841-61167 Tonekabon, Iran
| | - Abolfazl Nazbar
- National Cell Bank, Pasteur Institute of Iran, 13169-43551 Tehran, Iran
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42
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Carvalho LT, Vieira TA, Zhao Y, Celli A, Medeiros SF, Lacerda TM. Recent advances in the production of biomedical systems based on polyhydroxyalkanoates and exopolysaccharides. Int J Biol Macromol 2021; 183:1514-1539. [PMID: 33989687 DOI: 10.1016/j.ijbiomac.2021.05.025] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 04/30/2021] [Accepted: 05/04/2021] [Indexed: 01/10/2023]
Abstract
In recent years, growing attention has been devoted to naturally occurring biological macromolecules and their ensuing application in agriculture, cosmetics, food and pharmaceutical industries. They inherently have antigenicity, low immunogenicity, excellent biocompatibility and cytocompatibility, which are ideal properties for the design of biomedical devices, especially for the controlled delivery of active ingredients in the most diverse contexts. Furthermore, these properties can be modulated by chemical modification via the incorporation of other (macro)molecules in a random or controlled way, aiming at improving their functionality for each specific application. Among the wide variety of natural polymers, microbial polyhydroxyalkanoates (PHAs) and exopolysaccharides (EPS) are often considered for the development of original biomaterials due to their unique physicochemical and biological features. Here, we aim to fullfil a gap on the present associated literature, bringing an up-to-date overview of ongoing research strategies that make use of PHAs (poly (3-hydroxybutyrate), poly (3-hydroxybutyrate-co-3-hydroxyvalerate), poly (3-hydroxyoctanoate), poly(3-hydroxypropionate), poly (3-hydroxyhexanoate-co-3-hydroxyoctanoate), and poly (3-hydroxybutyrate-co-3-hydroxyhexanoate)) and EPS (bacterial cellulose, alginates, curdlan, pullulan, xanthan gum, dextran, hyaluronan, and schizophyllan) as sources of interesting and versatile biomaterials. For the first time, a monograph addressing the properties, pros and cons, status, challenges, and recent progresses regarding the application of these two important classes of biopolymers in biomedicine is presented.
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Affiliation(s)
- Layde T Carvalho
- Biotechnology Department, Engineering School of Lorena, University of São Paulo, 12602-810 Lorena, SP, Brazil
| | - Thiago A Vieira
- Biotechnology Department, Engineering School of Lorena, University of São Paulo, 12602-810 Lorena, SP, Brazil
| | - Yanjun Zhao
- School of Pharmaceutical Science and Technology, Tianjin Key Laboratory for Modern Drug Delivery 449 and High Efficiency, and Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, China
| | - Annamaria Celli
- Department of Civil, Chemical, Environmental and Materials Engineering, University of Bologna, Via Terracini 28, 40131 Bologna, Italy
| | - Simone F Medeiros
- Biotechnology Department, Engineering School of Lorena, University of São Paulo, 12602-810 Lorena, SP, Brazil; Chemical Engineering Department, Engineering School of Lorena, University of São Paulo, 12602-810 Lorena, SP, Brazil.
| | - Talita M Lacerda
- Biotechnology Department, Engineering School of Lorena, University of São Paulo, 12602-810 Lorena, SP, Brazil.
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Su H, Zheng R, Jiang L, Zeng N, Yu K, Zhi Y, Shan S. Dextran hydrogels via disulfide-containing Schiff base formation: Synthesis, stimuli-sensitive degradation and release behaviors. Carbohydr Polym 2021; 265:118085. [PMID: 33966849 DOI: 10.1016/j.carbpol.2021.118085] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 04/01/2021] [Accepted: 04/13/2021] [Indexed: 01/03/2023]
Abstract
Dextran hydrogels (Dex-SS) containing both disulfide and Schiff base bonds were developed via facile method based on the dextran oxidation and subsequent formation of Schiff base linkages between polyaldehyde dextran and cystamine, denoted as the disulfide-containing Schiff base reactions. Results of rheology, swelling and 13C CP/MAS NMR study indicated that cross-linking degree of Dex-SS hydrogels depended strongly on the molar ratio of -CHO/-NH2. Acidic and reductive (GSH) environment sensitive degradation behaviors of Dex-SS hydrogels were then evidenced by SEM, rheology study and Ellman's assay. Moreover, doxorubicin (DOX) was loaded into the hydrogel matrix and pH/GSH-responsive release behaviors were demonstrated. Cytocompatibility of Dex-SS hydrogel and effective cell uptake of released DOX was finally proved by transwell assay with HepG2 cells. Take advantages of the abundance of vicinal hydroxyl on a variety of polysaccharides, the disulfide-containing Schiff base reactions is considered as versatile method to develop stimuli-sensitive hydrogels for local drug delivery.
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Affiliation(s)
- Hongying Su
- Faculty of Chemical Engineering, Kunming University of Science and Technology, 727 South Jingming Road, Kunming, 650500, China.
| | - Rong Zheng
- Faculty of Chemical Engineering, Kunming University of Science and Technology, 727 South Jingming Road, Kunming, 650500, China
| | - Linrui Jiang
- Faculty of Chemical Engineering, Kunming University of Science and Technology, 727 South Jingming Road, Kunming, 650500, China
| | - Ni Zeng
- Faculty of Chemical Engineering, Kunming University of Science and Technology, 727 South Jingming Road, Kunming, 650500, China
| | - Kun Yu
- Faculty of Chemical Engineering, Kunming University of Science and Technology, 727 South Jingming Road, Kunming, 650500, China
| | - Yunfei Zhi
- Faculty of Chemical Engineering, Kunming University of Science and Technology, 727 South Jingming Road, Kunming, 650500, China
| | - Shaoyun Shan
- Faculty of Chemical Engineering, Kunming University of Science and Technology, 727 South Jingming Road, Kunming, 650500, China
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44
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Anita Lett J, Sagadevan S, Fatimah I, Hoque ME, Lokanathan Y, Léonard E, Alshahateet SF, Schirhagl R, Oh WC. Recent advances in natural polymer-based hydroxyapatite scaffolds: Properties and applications. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110360] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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45
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Wu P, Liang Y, Sun G. Engineering immune-responsive biomaterials for skin regeneration. BIOMATERIALS TRANSLATIONAL 2021; 2:61-71. [PMID: 35837252 PMCID: PMC9255827 DOI: 10.3877/cma.j.issn.2096-112x.2021.01.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 12/10/2020] [Accepted: 12/29/2020] [Indexed: 01/17/2023]
Abstract
The progress of biomaterials and tissue engineering has led to significant advances in wound healing, but the clinical therapy to regenerate perfect skin remains a great challenge. The implantation of biomaterial scaffolds to heal wounds inevitably leads to a host immune response. Many recent studies revealed that the immune system plays a significant role in both the healing process and the outcome. Immunomodulation or immuno-engineering has thus become a promising approach to develop pro-regenerative scaffolds for perfect skin regeneration. In this paper, we will review recent advancements in immunomodulating biomaterials in the field of skin repair and regeneration, and discuss strategies to modulate the immune response by tailoring the chemical, physical and biological properties of the biomaterials. Understanding the important role of immune responses and manipulating the inherent properties of biomaterials to regulate the immune reaction are approaches to overcome the current bottleneck of skin repair and regeneration.
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Affiliation(s)
- Pingli Wu
- College of Chemistry and Environmental Science, Hebei University, Baoding, Hebei Province, China
| | - Yangyang Liang
- College of Chemistry and Environmental Science, Hebei University, Baoding, Hebei Province, China
| | - Guoming Sun
- Affiliated Hospital of Hebei University, College of Chemistry and Environmental Science, Hebei University, Baoding, Hebei Province, China,Corresponding author: Guoming Sun,
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46
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Lan W, Chen S, Nong G. An Efficient Synthesis of Novel Dextran-Arsenite Nanoparticles intended for Potential Antitumor Drug Material. AN ACAD BRAS CIENC 2021; 93:e20190551. [PMID: 33729378 DOI: 10.1590/0001-3765202120190551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 08/05/2019] [Indexed: 11/22/2022] Open
Abstract
The functionalization of polysaccharides with synthetic nanopolymers has attracted great attention owing to the applications of this method in many industrial fields. This work aimed to investigate the effect of arsenic trioxide on the functionalization of dextran. Dextran-arsenite nanoparticle formation was induced by microwave with sulfuric acid as a catalyst. Various analytical techniques were used to verify the structure of the nanopolymers. Besides, various reaction conditions, such as dextran concentration, arsenic trioxide concentration and pH, were investigated to determine their impact on particle size. The results indicated that the product was an arsenite-based nanomaterial retaining the basic configuration of dextran and that the product size was positively correlated with pH but negatively correlated with arsenic trioxide concentration. Moreover, the inhibitory effects of the dextran-arsenite nanoparticles on the growth of the human colorectal cancer cell line HCT-116 and human hepatoma carcinoma cell lines Huh-7 and SMMC-7721 were studied. The results showed that the product could inhibit the proliferation of these three tumor cell lines in a dose-dependent manner. Therefore, the product could be a new type of functional nanomaterial for further study on the synthesis, biological activity and development of polysaccharide drugs.
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Affiliation(s)
- Weibing Lan
- Guangxi University, College of Light Industry and Food Engineering, No.100, Daxue East Road, Nanning, 530004, Guangxi, China.,Beibu Gulf University, College of Food Engineering, No.12, Binhai Avenue, Qinzhou 535011, China
| | - Shan Chen
- Guangxi University, College of Light Industry and Food Engineering, No.100, Daxue East Road, Nanning, 530004, Guangxi, China
| | - Guangzai Nong
- Guangxi University, College of Light Industry and Food Engineering, No.100, Daxue East Road, Nanning, 530004, Guangxi, China
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47
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Benwood C, Chrenek J, Kirsch RL, Masri NZ, Richards H, Teetzen K, Willerth SM. Natural Biomaterials and Their Use as Bioinks for Printing Tissues. Bioengineering (Basel) 2021; 8:27. [PMID: 33672626 PMCID: PMC7924193 DOI: 10.3390/bioengineering8020027] [Citation(s) in RCA: 85] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 02/12/2021] [Accepted: 02/17/2021] [Indexed: 12/12/2022] Open
Abstract
The most prevalent form of bioprinting-extrusion bioprinting-can generate structures from a diverse range of materials and viscosities. It can create personalized tissues that aid in drug testing and cancer research when used in combination with natural bioinks. This paper reviews natural bioinks and their properties and functions in hard and soft tissue engineering applications. It discusses agarose, alginate, cellulose, chitosan, collagen, decellularized extracellular matrix, dextran, fibrin, gelatin, gellan gum, hyaluronic acid, Matrigel, and silk. Multi-component bioinks are considered as a way to address the shortfalls of individual biomaterials. The mechanical, rheological, and cross-linking properties along with the cytocompatibility, cell viability, and printability of the bioinks are detailed as well. Future avenues for research into natural bioinks are then presented.
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Affiliation(s)
- Claire Benwood
- Department of Mechanical Engineering, University of Victoria, Victoria, BC V8P 5C2, Canada;
| | - Josie Chrenek
- Biomedical Engineering Program, University of Victoria, Victoria, BC V8P 5C2, Canada; (J.C.); (H.R.); (K.T.)
| | - Rebecca L. Kirsch
- Department of Chemistry, University of Victoria, Victoria, BC V8P 5C2, Canada;
| | - Nadia Z. Masri
- Division of Medical Sciences, University of Victoria, Victoria, BC V8P 5C2, Canada;
| | - Hannah Richards
- Biomedical Engineering Program, University of Victoria, Victoria, BC V8P 5C2, Canada; (J.C.); (H.R.); (K.T.)
| | - Kyra Teetzen
- Biomedical Engineering Program, University of Victoria, Victoria, BC V8P 5C2, Canada; (J.C.); (H.R.); (K.T.)
| | - Stephanie M. Willerth
- Department of Mechanical Engineering, University of Victoria, Victoria, BC V8P 5C2, Canada;
- Biomedical Engineering Program, University of Victoria, Victoria, BC V8P 5C2, Canada; (J.C.); (H.R.); (K.T.)
- Division of Medical Sciences, University of Victoria, Victoria, BC V8P 5C2, Canada;
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48
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Otto S, Marina PF, Zhou F, Blencowe A. Thermoresponsive polysaccharides with tunable thermoresponsive properties via functionalisation with alkylamide groups. Carbohydr Polym 2021; 254:117280. [PMID: 33357856 DOI: 10.1016/j.carbpol.2020.117280] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 10/15/2020] [Accepted: 10/16/2020] [Indexed: 11/17/2022]
Abstract
Polysaccharides have been used widely in many industries, from food technology and mining to cosmetics and biomedical applications. Over recent years there has been growing interest in the development of responsive polysaccharides with unique and switchable properties, particularly systems that display lower-critical solution temperatures (LCSTs). Therefore, in this study we aimed to investigate a novel strategy that would allow the conversion of non-responsive polysaccharides into thermoresponsive polysaccharides with tuneable LCSTs. Through the functionalisation of dextran with alkylamide groups (isopropyl amide, diethyl amide, piperidinyl and diisobutyl amide) using a carbodiimide coupling approach in conjunction with amic acid derivatives, we prepared a library of novel dextrans with various degrees of substitution (DS), which were characterised via nuclear magnetic resonance (NMR) spectroscopy and gel permeation chromatography (GPC). The alkylamide-functionalised dextrans were found to have good solubility in aqueous solutions, with the exception of those having a high DS of large hydrophobic substituents. Determination of the thermoresponsive characteristics of the polymer solutions via UV-vis spectroscopy revealed that the LCST of the alkylamide-functionalised dextrans was highly dependent on the type of alkylamide group and the DS and could be tuned over a large range (5-35 °C). Above the LCST, all of the thermoresponsive alkylamide-functionalised dextrans formed colloidal dispersions with particles sizes ranging from 400 -600 nm, as determined by dynamic light scattering (DLS). In addition, the polymers were found to exhibit a fast and reversible phase transition in solution with narrow hysteresis (∼ 1-5 °C). Finally, the injectability and biocompatibility of the novel thermoresponsive dextrans was confirmed in vivo via subcutaneous and intracranial ventricle injections, with no local or systemic toxicity noted over a 14 d period. Overall, the alkylamide-functionalised dextrans display interesting thermoresponsive properties and trends that may make them useful in biomedical applications, such as drug-delivery.
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Affiliation(s)
- Sarah Otto
- Applied Chemistry and Translational Biomaterials Group, Clinical and Health Sciences, University of South Australia, Adelaide, South Australia, 5000, Australia
| | - Paula Facal Marina
- Applied Chemistry and Translational Biomaterials Group, Clinical and Health Sciences, University of South Australia, Adelaide, South Australia, 5000, Australia
| | - Fiona Zhou
- Applied Chemistry and Translational Biomaterials Group, Clinical and Health Sciences, University of South Australia, Adelaide, South Australia, 5000, Australia; School of Medicine, University of Adelaide, South Australia, 5000, Australia
| | - Anton Blencowe
- Applied Chemistry and Translational Biomaterials Group, Clinical and Health Sciences, University of South Australia, Adelaide, South Australia, 5000, Australia.
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49
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Chen Z, Ni D, Zhang W, Stressler T, Mu W. Lactic acid bacteria-derived α-glucans: From enzymatic synthesis to miscellaneous applications. Biotechnol Adv 2021; 47:107708. [PMID: 33549610 DOI: 10.1016/j.biotechadv.2021.107708] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 12/21/2020] [Accepted: 01/29/2021] [Indexed: 10/22/2022]
Abstract
Lactic acid bacteria (LAB) are capable of producing a variety of exopolysaccharide α-glucans, such as dextran, mutan, reuteran, and alternan. Their structural diversity allows LAB-derived α-glucans to hold vast commercial value and application potential in the food, cosmetic, medical, and biotechnology fields, garnering much attention in recent years. Glycoside Hydrolase 70 family (GH70) enzymes are efficient tools for the biosynthesis of α-glucans with various sizes, linkage compositions, and degrees of branching, using renewable and low-cost sucrose and starch as substrates. To date, plenty of various LAB-derived GH70 glucansucrases (especially dextransucrase) have been biochemically characterized to synthesize α-glucans from sucrose with a variety of structural organizations. This review mainly aimed at the biotechnological synthesis of α-glucans using GH70 family enzymes and their diverse (potential) applications. The purification, structural analysis and physicochemical properties of α-glucan polysaccharides were reviewed in detail. Synchronously, some new insights and future perspectives of LAB-derived α-glucans enzymatic synthesis and applications were also discussed. To expand the range of applications, the physicochemical properties and bioactivities of LAB-derived α-glucans, other than dextran, should be further explored. Additionally, screening novel GH70 subfamily starch-acting enzymes is conducive to expanding the repertoire of α-glucans.
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Affiliation(s)
- Ziwei Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Dawei Ni
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Wenli Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Timo Stressler
- Independend Researcher, 64546 Mörfelden-Walldorf, Germany
| | - Wanmeng Mu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China; International Joint Laboratory on Food Safety, Jiangnan University, Wuxi, Jiangsu 214122, China.
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50
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Rohiwal SS, Ellederova Z, Tiwari AP, Alqarni M, Elazab ST, El-Saber Batiha G, Pawar SH, Thorat ND. Self-assembly of bovine serum albumin (BSA)-dextran bio-nanoconjugate: structural, antioxidant and in vitro wound healing studies. RSC Adv 2021; 11:4308-4317. [PMID: 35424397 PMCID: PMC8694369 DOI: 10.1039/d0ra09301g] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 02/08/2021] [Accepted: 12/27/2020] [Indexed: 11/21/2022] Open
Abstract
Glycation of proteins is often considered as a method to improve their functional properties for promising applications in wound healing. Furthermore, a marked increase in percentage of radical scavenging activity of the conjugates makes it an effective antioxidant synthetic strategy. A simple conjugation process was employed to develop bovine serum albumin-dextran conjugates (BSA-dextran) using Maillard reaction. Higher electrophoretic mobility and surface charge in the prepared conjugates was observed in native PAGE electrophoresis and zeta potential. Moreover, the fluorescence, FTIR and Raman analysis of the BSA-dextran conjugates shows significant shift in the fluorescence and wavelength as a consequence of conjugate formation. In vitro wound healing assay showed increased cell proliferation and migration effect. These finding suggests that BSA-dextran conjugate could open up a new practical way for exploration in the area of wound healing.
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Affiliation(s)
- Sonali S Rohiwal
- Centre for Interdisciplinary Research, D. Y. Patil University Kolhapur - 416006 MH India
- The PIGMOD Center, Institute of Animal Physiology and Genetics, v. v. i., The Czech Academy of Sciences Libechov Czech Republic
| | - Z Ellederova
- The PIGMOD Center, Institute of Animal Physiology and Genetics, v. v. i., The Czech Academy of Sciences Libechov Czech Republic
| | - Arpita P Tiwari
- Department of Stem Cell and Regenerative Medicine, D.Y. Patil Education Society, Deemed to be University Kolhapur India
| | - Mohammed Alqarni
- Department of Pharmaceutical Chemistry, College of Pharmacy, Taif University P.O. Box 11099 Taif 21944 Saudi Arabia
| | - Sara T Elazab
- Department of Pharmacology, Faculty of Veterinary Medicine, Mansoura University Mansoura 35516 Egypt
| | - Gaber El-Saber Batiha
- Department of Pharmacology, Faculty of Veterinary Medicine, Mansoura University Mansoura 35516 Egypt
| | - Shivaji H Pawar
- Centre for Interdisciplinary Research, D. Y. Patil University Kolhapur - 416006 MH India
- Centre for Innovative and Applied Research, Anekant Education Society, T. C. College Campus Baramati MH India
| | - Nanasaheb D Thorat
- Division of Medical Science, Nuffield Department of Women's & Reproductive Health, University of Oxford Oxford UK
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