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Hayat U, Liu C, Raza A, Hou J, Jia C, Wang JY. In vitro/ in vivoidentification of zein degraded peptides using HPLC-MS/MS and their safety evaluation. Biomed Mater 2023; 18. [PMID: 36649654 DOI: 10.1088/1748-605x/acb411] [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: 10/29/2022] [Accepted: 01/17/2023] [Indexed: 01/18/2023]
Abstract
The identification of degraded products of implanted scaffolds is desirable to avoid regulatory concerns.In vivoidentification of products produced by the degradation of natural protein-based scaffolds is complex and demands the establishment of a routine analytical method. In this study, we developed a method for the identification of peptides produced by the degradation of zein bothin vitroandin vivousing high performance liquid chromatography with tandem mass spectrometry (HPLC-MS/MS). Forin vitroexperiments, zein was degraded enzymatically and analyzed produced peptides.In vitrostudy showed cytocompatibility of peptides present in the hydrolysate of zein with no induction of apoptosis and cell senescence. Forin vivoexperiment, zein gels were prepared and subcutaneously implanted in rats. Peptides produced by the degradation of zein were identified and few were selected as targeted (unique peptides) and two peptides were synthesized as the reference sequence of these peptides. Further, peptide analysis using HPLC-MS/MS of different organs was performed after 2 and 8 weeks of implantation of zein gel in rats. It was found that zein-originated peptides were accumulated in different organs. QQHIIGGALF or peptides with same fractions were identified as unique peptides. These peptides were also found in control rats with regular rat feed, which means the degradation of implanted zein biomaterial produced food related peptides of non-toxic nature. Furthermore, hemotoxylin and eosin (H&E) staining exhibited normal features. Overall, zein degraded products showed cytocompatibility and did not induce organ toxicity, and QQHIIGGALF can act as a standard peptide for tracing and determining zein degradation. The study also provides the feasibility of complex analysis on identification and quantification of degradation products of protein-based scaffolds.
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Affiliation(s)
- Uzma Hayat
- School of Biomedical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China.,Jiaxing Yaojiao Medical Device Co. Ltd, 321 Jiachuang Road, Jiaxing 314032, People's Republic of China
| | - Chang Liu
- School of Biomedical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
| | - Ali Raza
- School of Biomedical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
| | - Jingli Hou
- Instrumental Analysis Center, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
| | - Caiwei Jia
- School of Biomedical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China
| | - Jin-Ye Wang
- School of Biomedical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People's Republic of China.,Jiaxing Yaojiao Medical Device Co. Ltd, 321 Jiachuang Road, Jiaxing 314032, People's Republic of China
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2
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Mehwish N, Chen Y, Zaeem M, Wang Y, Lee BH, Deng H. Novel biohybrid spongy scaffolds for fabrication of suturable intraoral graft substitutes. Int J Biol Macromol 2022; 214:617-631. [PMID: 35753514 DOI: 10.1016/j.ijbiomac.2022.06.125] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 05/17/2022] [Accepted: 06/17/2022] [Indexed: 11/05/2022]
Abstract
Despite the fact that classic autograft is the gold standard material for periodontal plastic surgery, it has some drawbacks, including the need for a second surgical site and the scarcity of palatal donor tissue. However, only a few research works on the manufacturing of bioengineered intraoral connective tissue grafts have been conducted. In this work, porous bovine serum albumin methacryloyl/gelatin methacryloyl (BG) biohybrid scaffolds were developed for super-elasticity, shape recovery, suturability for persistent stability, sufficient scaffolding function, and convenient manipulating characteristics to fabricate an intraoral graft substitute with superb stability to resist frequent dynamic forces caused by functional movement (speaking, masticating, and swallowing). Furthermore, in a 3D cell culture assay, BG scaffolds demonstrated excellent cell adhesion and proliferation of L929 cells. In addition, the BG scaffolds were able to release Ibuprofen in a controlled manner for postoperative recovery. The use of a low-cost, optimized cryogelation technique for functional biomacromolecules offers up new possibilities to develop promising scaffolds for dental clinical settings.
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Affiliation(s)
- Nabila Mehwish
- Wenzhou Institute, University of CAS, Wenzhou, Zhejiang 325011, China
| | - Yuan Chen
- Wenzhou Institute, University of CAS, Wenzhou, Zhejiang 325011, China; Department of Periodontics, School & Hospital of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Muhammad Zaeem
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Yi Wang
- Department of Orthodontics, School & Hospital of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Bae Hoon Lee
- Wenzhou Institute, University of CAS, Wenzhou, Zhejiang 325011, China; Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou, Zhejiang 325001, China.
| | - Hui Deng
- Department of Periodontics, School & Hospital of Stomatology, Wenzhou Medical University, Wenzhou, Zhejiang 325027, China.
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3
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Biodegradable polymeric conduits: Platform materials for guided nerve regeneration and vascular tissue engineering. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2021.103014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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4
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Wu X, Wu S, Kawashima H, Hara H, Ono M, Gao C, Wang R, Lunardi M, Sharif F, Wijns W, Serruys PW, Onuma Y. Current perspectives on bioresorbable scaffolds in coronary intervention and other fields. Expert Rev Med Devices 2021; 18:351-365. [PMID: 33739213 DOI: 10.1080/17434440.2021.1904894] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Introduction: The first-generation bioresorbable scaffolds (BRSs) had a large strut profile to compensate for the insufficient radial strength of bioresorbable polymer materials, resulting in higher scaffold thrombosis rates than conventional drug-eluting stents. To improve the clinical safety and efficacy, the new generation BRSs have been improved by optimal structure design, post-processing of bioresorbable polymer materials, or altering bioresorbable metallic alloys.Areas covered: This review summarizes the lessons learned from the first-generation BRS, updates the clinical outcomes of trials evaluating ABSORB bioresorbable vascular scaffold at long-term and bioresorbable metallic alloy-based devices, and examines recent outcomes of BRS treated in STEMI patients. This review also provides an overview of the current clinical data of seven BRSs manufactured in Asia, and of the BRSs extended application in other clinical arenas.Expert opinion: Drawbacks of the first-generation BRSs need to be addressed by the next generation of these stents with novel materials and technologies. Clinical research, including randomized controlled trials, are required to further evaluate BRSs application in coronary artery disease. The encouraging results of BRSs innovation applied in the peripheral arteries and gastrointestinal tracts support other potential clinical applications of BRS technology.
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Affiliation(s)
- Xinlei Wu
- Institute of Cardiovascular Development and Translational Medicine, the Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Cardiology, National University of Ireland Galway (NUIG), Galway, Ireland
| | - Sijing Wu
- Department of Cardiology, National University of Ireland Galway (NUIG), Galway, Ireland.,Department of Cardiology, Beijing Anzhen Hospital, Beijing, China
| | - Hideyuki Kawashima
- Department of Cardiology, National University of Ireland Galway (NUIG), Galway, Ireland
| | - Hironori Hara
- Department of Cardiology, National University of Ireland Galway (NUIG), Galway, Ireland
| | - Masafumi Ono
- Department of Cardiology, National University of Ireland Galway (NUIG), Galway, Ireland
| | - Chao Gao
- Department of Cardiology, National University of Ireland Galway (NUIG), Galway, Ireland.,Department of Cardiology, Xijing Hospital, Xi'an, China
| | - Rutao Wang
- Department of Cardiology, National University of Ireland Galway (NUIG), Galway, Ireland.,Department of Cardiology, Xijing Hospital, Xi'an, China
| | - Mattia Lunardi
- Department of Cardiology, National University of Ireland Galway (NUIG), Galway, Ireland
| | - Faisal Sharif
- Department of Cardiology, National University of Ireland Galway (NUIG), Galway, Ireland
| | - William Wijns
- Department of Cardiology, National University of Ireland Galway (NUIG), Galway, Ireland
| | - Patrick W Serruys
- Department of Cardiology, National University of Ireland Galway (NUIG), Galway, Ireland.,National Heart & Lung Institute, Imperial College London, London, UK
| | - Yoshinobu Onuma
- Department of Cardiology, National University of Ireland Galway (NUIG), Galway, Ireland
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Wang F, Liu H, Li Y, Li Y, Ma Q, Zhang J, Hu X. Tunable Biodegradable Polylactide-Silk Fibroin Scaffolds Fabricated by a Solvent-Free Pressure-Controllable Foaming Technology. ACS APPLIED BIO MATERIALS 2020; 3:8795-8807. [PMID: 35019555 DOI: 10.1021/acsabm.0c01157] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Polylactide (PLA) and silk fibroin (SF) are biocompatible green macromolecular materials with tunable structures and properties. In this study, microporous PLA/SF composites were fabricated under different pressures by a green solid solvent-free foaming technology. Scanning electron microscopy (SEM), dynamic mechanical analysis (DMA), differential scanning calorimetry (DSC), X-ray diffraction (XRD), thermogravimetric (TG) analysis, and Fourier transform infrared (FTIR) spectroscopy were used to analyze the morphology, structure, and mechanical properties of the PLA/SF scaffolds. The crystalline, mobile amorphous phases and rigid amorphous phases in PLA/SF composites were calculated to further understand their structure-property relations. It was found that an increase in pore density and a decrease in pore size can be achieved by increasing the saturation pressure during the foaming process. In addition, changes in the microcellular structure provided PLA/SF scaffolds with better thermal stability, tunable biodegradation rates, and mechanical properties. FTIR and XRD analysis indicated strong hydrogen bonds were formed between PLA and SF molecules, which can be tuned by changing the foaming pressure. The composite scaffolds have good cell compatibility and are conducive to cell adhesion and growth, suggesting that PLA/SF microporous scaffolds could be used as three-dimensional (3-D) biomaterials with a wide range of applications.
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Affiliation(s)
- Fang Wang
- Center of Analysis and Testing, Nanjing Normal University, Nanjing 210023, P. R. China.,School of Chemistry and Materials Science, Nanjing Normal University Jiangsu, Nanjing 210023, P. R. China
| | - Hao Liu
- Center of Analysis and Testing, Nanjing Normal University, Nanjing 210023, P. R. China.,School of Chemistry and Materials Science, Nanjing Normal University Jiangsu, Nanjing 210023, P. R. China
| | - Yingying Li
- Center of Analysis and Testing, Nanjing Normal University, Nanjing 210023, P. R. China.,School of Chemistry and Materials Science, Nanjing Normal University Jiangsu, Nanjing 210023, P. R. China
| | - Yajuan Li
- School of Chemistry and Materials Science, Nanjing Normal University Jiangsu, Nanjing 210023, P. R. China
| | - Qingyu Ma
- School of Physics and Technology, Nanjing Normal University, Nanjing 210023, P. R. China
| | - Jun Zhang
- School of Chemistry and Materials Science, Nanjing Normal University Jiangsu, Nanjing 210023, P. R. China
| | - Xiao Hu
- Department of Physics and Astronomy, Rowan University, Glassboro, New Jersey 08028, United States.,Department of Biomedical Engineering, Rowan University, Glassboro, New Jersey 08028, United States.,Department of Molecular and Cellular Biosciences, Rowan University, Glassboro, New Jersey 08028, United States
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6
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Toong DWY, Toh HW, Ng JCK, Wong PEH, Leo HL, Venkatraman S, Tan LP, Ang HY, Huang Y. Bioresorbable Polymeric Scaffold in Cardiovascular Applications. Int J Mol Sci 2020; 21:E3444. [PMID: 32414114 PMCID: PMC7279389 DOI: 10.3390/ijms21103444] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 05/06/2020] [Accepted: 05/08/2020] [Indexed: 12/12/2022] Open
Abstract
Advances in material science and innovative medical technologies have allowed the development of less invasive interventional procedures for deploying implant devices, including scaffolds for cardiac tissue engineering. Biodegradable materials (e.g., resorbable polymers) are employed in devices that are only needed for a transient period. In the case of coronary stents, the device is only required for 6-8 months before positive remodelling takes place. Hence, biodegradable polymeric stents have been considered to promote this positive remodelling and eliminate the issue of permanent caging of the vessel. In tissue engineering, the role of the scaffold is to support favourable cell-scaffold interaction to stimulate formation of functional tissue. The ideal outcome is for the cells to produce their own extracellular matrix over time and eventually replace the implanted scaffold or tissue engineered construct. Synthetic biodegradable polymers are the favoured candidates as scaffolds, because their degradation rates can be manipulated over a broad time scale, and they may be functionalised easily. This review presents an overview of coronary heart disease, the limitations of current interventions and how biomaterials can be used to potentially circumvent these shortcomings in bioresorbable stents, vascular grafts and cardiac patches. The material specifications, type of polymers used, current progress and future challenges for each application will be discussed in this manuscript.
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Affiliation(s)
- Daniel Wee Yee Toong
- School of Materials Science and Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798, Singapore; (D.W.Y.T.); (L.P.T.)
| | - Han Wei Toh
- National Heart Centre Singapore, 5 Hospital Drive, Singapore 169609, Singapore; (H.W.T.); (J.C.K.N.); (P.E.H.W.)
- Department of Biomedical Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore 117583, Singapore;
| | - Jaryl Chen Koon Ng
- National Heart Centre Singapore, 5 Hospital Drive, Singapore 169609, Singapore; (H.W.T.); (J.C.K.N.); (P.E.H.W.)
- Department of Biomedical Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore 117583, Singapore;
| | - Philip En Hou Wong
- National Heart Centre Singapore, 5 Hospital Drive, Singapore 169609, Singapore; (H.W.T.); (J.C.K.N.); (P.E.H.W.)
- Duke-NUS Medical School, National University of Singapore, 8 College Road, Singapore 169857, Singapore
| | - Hwa Liang Leo
- Department of Biomedical Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore 117583, Singapore;
| | - Subramanian Venkatraman
- Materials Science and Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117575, Singapore;
| | - Lay Poh Tan
- School of Materials Science and Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798, Singapore; (D.W.Y.T.); (L.P.T.)
| | - Hui Ying Ang
- National Heart Centre Singapore, 5 Hospital Drive, Singapore 169609, Singapore; (H.W.T.); (J.C.K.N.); (P.E.H.W.)
- Department of Biomedical Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore 117583, Singapore;
| | - Yingying Huang
- School of Materials Science and Engineering, Nanyang Technological University, Nanyang Avenue, Singapore 639798, Singapore; (D.W.Y.T.); (L.P.T.)
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7
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Abstract
Abstract
In the review we describe a method for concentration of anionic liposomes with encapsulated water-soluble substances within a small volume via electrostatic liposome adsorption on the surface of polymer particles with grafted cationic chains (spherical polycationic brushes), or cationic microgel particles. Dozens of intact liposomes can be bound to each polymer particle, the resulting polymer/liposome complex does not dissociate into the original components in a physiological solution. This allows fabrication of multi-liposomal complexes (MLCs) with a required ratio of encapsulated substances. Two approaches are discussed for the synthesis of stimuli-sensitive MLCs. The first is to incorporate the conformation switch, morpholinocyclohexanol-based lipid, into the liposomal membrane thus forming pH-sensitive liposomes capable of releasing their cargo when acidifying the surrounding solution. These liposomes complexed with the brushes release encapsulated substances much faster than the uncomplexed liposomes. The second is to adsorb liposomes on cationic thermo-responsive microgels. The resulting MLCs contracts upon heating over a volume phase transition temperature from the swollen to the collapsed state of microgel, thus causing the adsorbed liposomes to change drastically their morphology and release an encapsulated substance. Complexation of anionic liposomes with chitosan microgels and polylactide micelles gives MLCs which degrade in the presence of enzymes down to small particles, 10–15 nm in diameter. A novel promising approach suggests that immobilized liposomes can act as a capacious depot for biologically active compounds and ensure their controllable leakage to surrounding solution.
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Affiliation(s)
- Alexander A. Yaroslavov
- Lomonosov Moscow State University , Department of Chemistry , Leninskie Gory 1-3 , Moscow 119991 , Russian Federation
| | - Andrey V. Sybachin
- Lomonosov Moscow State University , Department of Chemistry , Leninskie Gory 1-3 , Moscow 119991 , Russian Federation
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8
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Zhao R, Xu Z, Li B, Chen T, Mei N, Wang C, Zhou Z, You L, Wu C, Wang X, Tang S. A comparative study on agarose acetate and PDLLA scaffold for rabbit femur defect regeneration. ACTA ACUST UNITED AC 2019; 14:065007. [PMID: 31422950 DOI: 10.1088/1748-605x/ab3c1b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The development of degradable polymer scaffolds is a key issue in bone regeneration. Poly(D, L-lactide) (PDLLA) and its derivatives have usually been applied to the construction of degradable scaffolds, but these scaffolds had problems with acidic degradation products and quick loss of mechanic strength during the later degradation, which usually led to scaffold collapse and cavity formation because of the slower rate of bone regeneration. In the present paper, a polysaccharide derivative, agarose acetate (AGA), was synthesized and a novel porous AGA scaffold was successfully developed through a salt-leaching process. The AGA scaffold had over 90% porosity without swelling in water, and compared to collapse and acidic products of PDLLA scaffold during degradation, the AGA scaffold maintained a stable morphology and a nearly neutral pH value over 18 months' degradation in PBS. A bone mesenchymal stem cells (BMSCs) adhesion and proliferation experiment showed that more cells adhered to the AGA scaffold than to the PDLLA scaffold. A subcutaneous implant test showed that the AGA scaffold slowly degraded and did not cause an inflammatory response surrounding the implantation lesion site. AGA scaffold was implanted into femur defects in New Zealand white rabbits to test its in vivo performance. Results indicated that the AGA scaffold accelerated the process of bone regeneration compared to the PDLLA group and, with time, new bone was formed from the margin toward the center of the scaffolds, and the scaffold left in place retained its porous structure without collapsing. Meanwhile, the AGA scaffold showed a low degradation rate and kept its shape during the in vivo degradation compared to the PDLLA scaffold. This performance could have the benefit of integrated regenerative bone being formed instead of cavities due to the quickly degraded scaffold disappearing. These results demonstrate that the AGA scaffold has significant potential in bone regeneration applications.
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Affiliation(s)
- Ruifang Zhao
- Biomedical Engineering Institute, Jinan University, Guangzhou 510632 People's Republic of China
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9
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Leprince S, Huberlant S, Allegre L, Warembourg S, Leteuff I, Bethry A, Paniagua C, Taillades H, De Tayrac R, Coudane J, Letouzey V, Garric X. Preliminary design of a new degradable medical device to prevent the formation and recurrence of intrauterine adhesions. Commun Biol 2019; 2:196. [PMID: 31123719 PMCID: PMC6531438 DOI: 10.1038/s42003-019-0447-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 04/26/2019] [Indexed: 01/22/2023] Open
Abstract
Intrauterine adhesions lead to partial or complete obliteration of the uterine cavity and have life-changing consequences for women. The leading cause of adhesions is believed to be loss of stroma resulting from trauma to the endometrium after surgery. Adhesions are formed when lost stroma is replaced by fibrous tissue that join the uterine walls. Few effective intrauterine anti-adhesion barriers for gynecological surgery exist. We designed a degradable anti-adhesion medical device prototype to prevent adhesion formation and recurrence and restore uterine morphology. We focused on ideal degradation time for complete uterine re-epithelialization for optimal anti-adhesion effect and clinical usability. We developed a triblock copolymer prototype [poly(lactide) combined with high molecular mass poly(ethylene oxide)]. Comparative pre-clinical studies demonstrated in vivo anti-adhesion efficacy. Ease of introduction and optimal deployment in a human uterus confirmed clinical usability. This article provides preliminary data to develop an intrauterine medical device and conduct a clinical trial.
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Affiliation(s)
- Salome Leprince
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université Montpellier, ENSCM, Montpellier, 34093 France
| | - Stéphanie Huberlant
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université Montpellier, ENSCM, Montpellier, 34093 France
- Department of Gynecology and Obstetrics, University Hospital, Nîmes, 30900 France
| | - Lucie Allegre
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université Montpellier, ENSCM, Montpellier, 34093 France
- Department of Gynecology and Obstetrics, University Hospital, Nîmes, 30900 France
| | - Sophie Warembourg
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université Montpellier, ENSCM, Montpellier, 34093 France
- Department of Gynecology and Obstetrics, University Hospital, Nîmes, 30900 France
| | - Isabelle Leteuff
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université Montpellier, ENSCM, Montpellier, 34093 France
- Department of Gynecology and Obstetrics, University Hospital, Nîmes, 30900 France
| | - Audrey Bethry
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université Montpellier, ENSCM, Montpellier, 34093 France
| | - Cedric Paniagua
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université Montpellier, ENSCM, Montpellier, 34093 France
| | - Hubert Taillades
- Experimental Department, University of Montpellier, Montpellier, 34000 France
| | - Renaud De Tayrac
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université Montpellier, ENSCM, Montpellier, 34093 France
- Department of Gynecology and Obstetrics, University Hospital, Nîmes, 30900 France
| | - Jean Coudane
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université Montpellier, ENSCM, Montpellier, 34093 France
| | - Vincent Letouzey
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université Montpellier, ENSCM, Montpellier, 34093 France
- Department of Gynecology and Obstetrics, University Hospital, Nîmes, 30900 France
| | - Xavier Garric
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, Université Montpellier, ENSCM, Montpellier, 34093 France
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10
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Gil-Castell O, Badia JD, Bou J, Ribes-Greus A. Performance of Polyester-Based Electrospun Scaffolds under In Vitro Hydrolytic Conditions: From Short-Term to Long-Term Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E786. [PMID: 31121950 PMCID: PMC6566282 DOI: 10.3390/nano9050786] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 05/15/2019] [Accepted: 05/20/2019] [Indexed: 12/15/2022]
Abstract
The evaluation of the performance of polyesters under in vitro physiologic conditions is essential to design scaffolds with an adequate lifespan for a given application. In this line, the degradation-durability patterns of poly(lactide-co-glycolide) (PLGA), polydioxanone (PDO), polycaprolactone (PCL) and polyhydroxybutyrate (PHB) scaffolds were monitored and compared giving, as a result, a basis for the specific design of scaffolds from short-term to long-term applications. For this purpose, they were immersed in ultra-pure water and phosphate buffer solution (PBS) at 37 °C. The scaffolds for short-time applications were PLGA and PDO, in which the molar mass diminished down to 20% in a 20-30 days lifespan. While PDO developed crystallinity that prevented the geometry of the fibres, those of PLGA coalesced and collapsed. The scaffolds for long-term applications were PCL and PHB, in which the molar mass followed a progressive decrease, reaching values of 10% for PCL and almost 50% for PHB after 650 days of immersion. This resistant pattern was mainly ascribed to the stability of the crystalline domains of the fibres, in which the diameters remained almost unaffected. From the perspective of an adequate balance between the durability and degradation, this study may serve technologists as a reference point to design polyester-based scaffolds for biomedical applications.
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Affiliation(s)
- Oscar Gil-Castell
- Instituto de Tecnología de Materiales (ITM), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain.
- Departament d'Enginyeria Química, Escola Tècnica Superior d'Enginyeria, Universitat de València, Av. de la Universitat s/n, 46100 Burjassot, Spain.
| | - José David Badia
- Instituto de Tecnología de Materiales (ITM), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain.
- Departament d'Enginyeria Química, Escola Tècnica Superior d'Enginyeria, Universitat de València, Av. de la Universitat s/n, 46100 Burjassot, Spain.
| | - Jordi Bou
- Departament d'Enginyeria Química, Universitat Politècnica de Catalunya, Av. Diagonal 647 (ETSEIB), 08028 Barcelona, Spain.
| | - Amparo Ribes-Greus
- Instituto de Tecnología de Materiales (ITM), Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain.
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11
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Huang CH, Lee SY, Horng S, Guy LG, Yu TB. In vitro and in vivo degradation of microfiber bioresorbable coronary scaffold. J Biomed Mater Res B Appl Biomater 2017; 106:1842-1850. [PMID: 28922543 PMCID: PMC6635671 DOI: 10.1002/jbm.b.33987] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 08/21/2017] [Accepted: 08/28/2017] [Indexed: 01/08/2023]
Abstract
The degradation of Mirage Bioresorbable Microfiber Scaffold was evaluated in vitro and in vivo. The degradation in polymer molecular weight (MW), strut morphology, and integrity was accessed using gel permeation chromatography (GPC), X‐ray micro‐computed tomography (micro‐CT) evaluation. To simulate the physiological degradation in vitro, scaffolds were deployed in silicone mock vessels connected to a peristaltic pumping system, which pumps 37°C phosphate‐buffered saline (PBS, pH 7.4) at a constant rate. At various time points (30D, 60D, 90D, 180D, 270D, and 360D), the MW of microfibers decreased to 57.3, 49.8, 36.9, 13.9, 6.4, and 5.1% against the baseline. The in vivo degradation study was performed by implanting scaffolds in internal thoracic arteries (ITAs) of mini‐swine. At the scheduled sacrifice time points (30D, 90D, 180D, 270D, 360D, and 540D), the implanted ITAs were excised for GPC analysis; the MW of the implanted scaffolds dropped to 58.5, 34.7, 24.8, 16.1, 12.9, and 7.1, respectively. Mass loss of scaffolds reached 72.4% at 540D of implantation. Two stages of hydrolysis were observed in in vitro and in vivo degradation kinetics, and the statistical analysis suggested a positive correlation between in vivo and in vitro degradation. After 6 months of incubation in animals, significant strut degradation was seen in the micro‐CT evaluation in all sections as strut fragments and separations. The micro‐CT results further confirmed that every sample at 720D had X‐ray transmission similar to surrounding tissue, thereby indicating full degradation within 2 years. © 2017 The Authors. Journal of Biomedical Materials Research Part B: Applied Biomaterials published by Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 1842–1850, 2018.
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Affiliation(s)
- Chi-Hung Huang
- Division of Cardiology, Department of Internal Medicine, Cathay General Hospital, Taipei, Taiwan.,School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan
| | - Sheng-Yang Lee
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan.,Dental Department of Taipei Medical University, Wan-Fang Hospital, Taipei, Taiwan
| | - Sonida Horng
- Accellab Inc., Boisbriand, Quebec, J7H 1N8, Canada
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