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Wu CY, Guo CL, Yang YC, Huang CW, Zeng JY, Guan ZY, Chiang YC, Wang PY, Chen HY. Parylene-Based Porous Scaffold with Functionalized Encapsulation of Platelet-Rich Plasma and Living Stem Cells for Tissue Engineering Applications. ACS APPLIED BIO MATERIALS 2020; 3:7193-7201. [PMID: 35019377 DOI: 10.1021/acsabm.0c00995] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A scaffold was fabricated to synergistically encapsulate living human adipose-derived stem cells (hASCs) and platelet-rich plasma (PRP) based on a vapor-phase sublimation and deposition process. During the process, ice templates were prepared using sterile water as the solvent and were used to accommodate the sensitive living cells and PRP molecules. Under controlled processing conditions, the ice templates underwent vapor sublimation to evaporate water molecules, while at the same time, vapor-phase deposition of poly-p-xylylene (Parylene, USP Class VI highly biocompatible) occurred to replace the templates, and the final construction yielded a scaffold with Parylene as the matrix, with simultaneously encapsulated living hASCs and PRP molecules. Evaluation of the fabricated synergistic scaffold for the proliferation activities toward the encapsulated hASCs indicated significant augmentation of cell proliferation contributed by the PRP ingredients. In addition, osteogenic activity in the early stage by alkaline phosphatase expression and later stage with calcium mineralization indicated significant enhancement toward osteogenetic differentiation of the encapsulated hASCs, which were guided by the PRP molecules. By contrast, examinations of adipogenic activity by lipid droplet formation revealed an inhibition of adipogenesis with decreased intracellular lipid accumulation, and a statistically significant downregulation of adipogenic differentiation was postulated for the scaffold products when compared to the osteogenetic results and the control experiments. The reported fabrication method featured a clean and simple process to construct scaffolds that combined delicate living hASCs and PRP molecules inside the structure. The resultant synergistic scaffold and the selected commercially available hASCs and PRP are emerging as tissue engineering tools that provide multifunctionality for tissue repair and regeneration.
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Affiliation(s)
- Chih-Yu Wu
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan.,Molecular Imaging Center, National Taiwan University, Taipei 10617, Taiwan.,Advanced Research Center for Green Materials Science and Technology, National Taiwan University, Taipei 10617, Taiwan
| | - Chin-Lin Guo
- Institute of Physics, Academia Sinica, Taipei 11579, Taiwan
| | - Yen-Ching Yang
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Chao-Wei Huang
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Jun-Yu Zeng
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Zhen-Yu Guan
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan
| | - Yu-Chih Chiang
- School of Dentistry, Graduate Institute of Clinical Dentistry, National Taiwan University, Taipei 10048, Taiwan
| | - Peng-Yuan Wang
- Shenzhen Key Laboratory of Biomimetic Materials and Cellular Immunomodulation, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.,China Department of Chemistry and Biotechnology, School of Science, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
| | - Hsien-Yeh Chen
- Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan.,Molecular Imaging Center, National Taiwan University, Taipei 10617, Taiwan.,Advanced Research Center for Green Materials Science and Technology, National Taiwan University, Taipei 10617, Taiwan
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Kim H, Jang Y, Jung J, Oh J. Parylene-C coated microporous PDMS structure protecting from functional deconditioning of platelets exposed to cardiostimulants. LAB ON A CHIP 2020; 20:2284-2295. [PMID: 32478781 DOI: 10.1039/d0lc00253d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Most elderly patients after orthopedic and dental implant surgeries are exposed to cardiostimulants to reduce potential blood pressure-related risks of cardiovascular diseases. Such treatments lead to deconditioning of platelet function, which is an important factor in wound healing treatments. We introduced an innovative parylene-C coated microporous PDMS structure that can prevent the functional deconditioning of platelets caused by certain cardiostimulants. At different concentrations of cardiostimulants (IPR; isoprenaline and DA; dopamine), pre-activation, activation, and post-activation of platelets were intensively examined under mechanical and chemical stimulation mimicking the physiological environment on four different surfaces (glass, flat parylene-C coated glass (F-PPXC), microporous PDMS structure (P-PDMS), and parylene-C-coated microporous PDMS structure (S-PPXC)). The 3D microporous structure with parylene-C (S-PPXC) surface could attenuate the deconditioning of platelet function caused by IPR. Moreover, the S-PPXC surface further enhanced the DA-dependent stimulation of platelet function. The reason for this is that the 3D microporous structure with parylene-C S-PPXC induced stable and fast adhesion of platelets through increased surface roughness and softness, resulting in a significant enhancement of platelet activity. Therefore, we propose the use of functional S-PPXC surfaces as a novel strategy in the development of biomedical products.
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Affiliation(s)
- Hyojae Kim
- Department of Bio-Nano System Engineering, College of Engineering, Jeonbuk National University, Jeonju 54896, South Korea
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Yang G, Yang H, Shi L, Wang T, Zhou W, Zhou T, Han W, Zhang Z, Lu W, Hu J. Enhancing Corrosion Resistance, Osteoinduction, and Antibacterial Properties by Zn/Sr Additional Surface Modification of Magnesium Alloy. ACS Biomater Sci Eng 2018; 4:4289-4298. [PMID: 33418825 DOI: 10.1021/acsbiomaterials.8b00781] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Guangzheng Yang
- Department of Prosthodontics, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai 200011, China
| | - Huawei Yang
- Department of Stomatology, Shanghai Tenth People’s Hospital, Tongji University, Shanghai 200072, China
| | - Lei Shi
- Department of Oral and Maxillofacial Surgery, Gansu Provincial Hospital, Lanzhou 730000, China
| | - Taolei Wang
- School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
| | - Wuchao Zhou
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Nanchang University, Nanchang 330006, China
| | - Tian Zhou
- Department of Oral & Maxillofacial-Head & Neck Oncology, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai 200011, China
| | - Wei Han
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, China
| | - Zhiyuan Zhang
- Department of Oral & Maxillofacial-Head & Neck Oncology, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai 200011, China
| | - Wei Lu
- School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
| | - Jingzhou Hu
- Department of Oral & Maxillofacial-Head & Neck Oncology, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai 200011, China
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Tobin EJ. Recent coating developments for combination devices in orthopedic and dental applications: A literature review. Adv Drug Deliv Rev 2017; 112:88-100. [PMID: 28159606 DOI: 10.1016/j.addr.2017.01.007] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Revised: 12/30/2016] [Accepted: 01/30/2017] [Indexed: 02/06/2023]
Abstract
Orthopedic and dental implants have been used successfully for decades to replace or repair missing or damaged bones, joints, and teeth, thereby restoring patient function subsequent to disease or injury. However, although device success rates are generally high, patient outcomes are sometimes compromised due to device-related problems such as insufficient integration, local tissue inflammation, and infection. Many different types of surface coatings have been developed to address these shortcomings, including those that incorporate therapeutic agents to provide localized delivery to the surgical site. While these coatings hold enormous potential for improving device function, the list of requirements that an ideal combination coating must fulfill is extensive, and no single coating system today simultaneously addresses all of the criteria. Some of the primary challenges related to current coatings are non-optimal release kinetics, which most often are too rapid, the potential for inducing antibiotic resistance in target organisms, high susceptibility to mechanical abrasion and delamination, toxicity, difficult and expensive regulatory approval pathways, and high manufacturing costs. This review provides a survey of the most recent developments in the field, i.e., those published in the last 2-3years, with a particular focus on technologies that have potential for overcoming the most significant challenges facing therapeutically-loaded coatings. It is concluded that the ideal coating remains an unrealized target, but that advances in the field and emerging technologies are bringing it closer to reality. The significant amount of research currently being conducted in the field provides a level of optimism that many functional combination coatings will ultimately transition into clinical practice, significantly improving patient outcomes.
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Guler Z, Silva JC, Sarac AS. Enhanced osteogenesis on biofunctionalized poly(ɛ-caprolactone)/poly(m-anthranilic acid) nanofibers. J Biomater Appl 2016; 31:743-754. [PMID: 27440863 DOI: 10.1177/0885328216660379] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Biofunctionalized nanofibers with a desired biological function can be used as a tissue engineering scaffold due to their small fiber diameters and porous structure. In the present study, poly(ɛ-caprolactone)/poly(m-anthranilic acid) nanofibers were biofunctionalized with covalent immobilization of bone morphogenetic protein-2 (BMP-2) through 1-ethyl-3-(dimethyl-aminopropyl) carbodiimide hydrochloride/N-hydroxysuccinimide activation. Fourier transform infrared analysis of the nanofiber surfaces confirmed the successful immobilization. The amount of immobilized BMP-2 was determined with bicinchoninic acid protein assay. The nanofibers before and after BMP-2 immobilization were non-cytotoxic and enhanced the attachment and proliferation of Saos-2 cells. Biofunctionalization of nanofibers with BMP-2 promoted in vitro osteogenic activity. The alkaline phosphatase activity and calcium mineralizatio of cells after 14 days of in vitro culture were enhanced on nanofibers with immobilized BMP-2.
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Affiliation(s)
- Zeliha Guler
- Nanoscience and Nanoengineering, Istanbul Technical University, Istanbul, Turkey I3N/Cenimat and Physics Department, Faculty of Science and Technology, Nova University of Lisbon, Caparica, Portugal
| | - Jorge C Silva
- I3N/Cenimat and Physics Department, Faculty of Science and Technology, Nova University of Lisbon, Caparica, Portugal
| | - Abdulkadir S Sarac
- Nanoscience and Nanoengineering, Istanbul Technical University, Istanbul, Turkey Department of Chemistry, Istanbul Technical University, Istanbul, Turkey Department of Polymer Science and Technology, Istanbul Technical University, Istanbul, Turkey
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Guler Z, Silva JC, Sezai Sarac A. RGD functionalized poly(ε-caprolactone)/poly(m-anthranilic acid) electrospun nanofibers as high-performing scaffolds for bone tissue engineering RGD functionalized PCL/P3ANA nanofibers. INT J POLYM MATER PO 2016. [DOI: 10.1080/00914037.2016.1190929] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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