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Ajisafe VA, Raichur AM. Snail Mucus-Enhanced Adhesion of Human Chondrocytes on 3D Porous Agarose Scaffolds. ACS APPLIED MATERIALS & INTERFACES 2024; 16:11324-11335. [PMID: 38406881 DOI: 10.1021/acsami.3c19557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
This study reports the preparation of a novel porous 3D scaffold from agarose-snail mucus (AGSMu) for cartilage tissue repair applications. AG is reported for its unique thermal and mechanical properties, biocompatibility, and biodegradability, making it suitable for biomedical applications. Still, it lacks the cell adhesion properties required for tissue engineering applications. SMu is a complex substance identified to contain glycosaminoglycans (GAGs) and other bioactive molecules that promote wound healing and reduce cartilage deterioration and inflammation. Hence, porous 3D blend scaffolds containing AG and SMu were prepared by the freeze-drying method, characterized, and investigated for bioactive effects on human chondrocyte (C28/I2) cells. The scaffolds had a microporous structure with an average pore size of 245 μm. FTIR spectroscopy showed that SMu was successfully incorporated into the scaffolds. The SMu increased the mechanical strength of the composite scaffolds by more than 80% compared to the pristine AG scaffold. The scaffolds were found to be biocompatible with tunable degradation. The human chondrocyte cells attached and proliferated well on the 3D scaffolds in a few days, demonstrating a marked improvement in adhesion due to the presence of SMu. Enhanced cell adhesion and mechanical properties of 3D porous AG scaffolds could make them suitable for articular cartilage repair and regeneration.
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Affiliation(s)
- Victor A Ajisafe
- Department of Materials Engineering, Indian Institute of Science, Bengaluru, Karnataka 560012, India
| | - Ashok M Raichur
- Department of Materials Engineering, Indian Institute of Science, Bengaluru, Karnataka 560012, India
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Decellularized tendon-based heparinized nanocomposite scaffolds for prospective regenerative applications: Chemical, physical, thermal, mechanical and in vitro biological evaluations. J Mech Behav Biomed Mater 2022; 134:105387. [DOI: 10.1016/j.jmbbm.2022.105387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 07/12/2022] [Accepted: 07/17/2022] [Indexed: 11/19/2022]
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Li H, Wang X, Liu J, Liu Z, Wang H, Mo X, Wu J. Nanofiber configuration affects biological performance of decellularized meniscus extracellular matrix incorporated electrospun scaffolds. Biomed Mater 2021; 16. [PMID: 34547733 DOI: 10.1088/1748-605x/ac28a5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 09/21/2021] [Indexed: 01/13/2023]
Abstract
Electrospinning represents the simplest approach to fabricate nanofiber scaffolds that approximate the heterogeneous fibrous structure of the meniscus. More effort is needed to understand the relationship between scaffold properties and cell responses to determine the appropriate scaffolds supporting meniscus tissue repair and regeneration. In this study, we investigate the influence of nanofiber configuration of electrospun scaffolds on phenotype and matrix production of meniscus cells, as well as on scaffold degradation behaviors and biocompatibility. Twisting electrospun nanofibers into yarns not only recapitulates the major collagen bundles of the meniscus but also increases the pore size and porosity of resultant scaffolds. The yarn scaffold significantly regulated expression levels of meniscus-associated genes and promoted extracellular matrix production compared with conventional electrospun scaffolds with random or aligned nanofiber orientation. Additionally, the yarn scaffold allowed considerable cell infiltration and experienced faster degradation and tissue remodeling upon subcutaneous implantation in a rat model. These results suggest that nanofiber configuration dictates cell interactions, scaffold degradation and integration with host tissue, providing design parameters of porosity and pore size of electrospun scaffolds toward meniscus repair.
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Affiliation(s)
- Haiyan Li
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education & Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Xiaoyu Wang
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education & Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Jiajie Liu
- Department of Hernia and Abdominal Wall Surgery, Shanghai East Hospital, TongJi University, Shanghai 200120, People's Republic of China
| | - Zhengni Liu
- Department of Hernia and Abdominal Wall Surgery, Shanghai East Hospital, TongJi University, Shanghai 200120, People's Republic of China
| | - Hongsheng Wang
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education & Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Xiumei Mo
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education & Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
| | - Jinglei Wu
- Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education & Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, People's Republic of China
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Abdel-Haq H. Accuracy of the dimethylmethylene blue spectrophotometric assay in measuring the amount of encapsulated pentosan polysulfate into nanoparticles. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-020-01464-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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