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Zhao T, Xu K, Wu Q, Wang C, Xiao S, Li H, He T, Wang L, Li F, Chen Q. Duraplasty of PHBV/PLA/Col membranes promotes axonal regeneration by inhibiting NLRP3 complex and M1 macrophage polarization in rats with spinal cord injury. FASEB J 2020; 34:12147-12162. [PMID: 32686873 DOI: 10.1096/fj.202000190rr] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 06/21/2020] [Accepted: 06/29/2020] [Indexed: 12/20/2022]
Abstract
Duraplasty after decompression decreases the lesion size and scar formation, promoting better functional recovery, but the underlying mechanism has not been clarified. Here, we fabricated a series of poly(hydroxybutyrate-co-hydroxyvalerate)/polylactic acid/collagen (PHBV/PLA/Col) membranes and cultured them with VSC4.1 motor neurons. The material characteristics and in vitro biological characteristics were evaluated. In the subcutaneous implantation test, PHBV/PLA/COl scaffolds supported the cellular infiltration, microvasculature formation, and decreased CD86-positive macrophage aggregation. Following contusion spinal cord injury at T10 in Sprague-Dawley rats, durotomy was performed with allograft dura mater or PHBV/PLA or PHBV/PLA/Col membranes. At 3 days post-injury, Western blot assay showed decreased the expression of the NLRP3, ASC, cleaved-caspase-1, IL-1β, TNF-α, and CD86 expression but increased the expression of CD206. Immunofluorescence demonstrated that duraplasty with PHBV/PLA/Col membranes reduced the infiltration of CD86-positive macrophages in the lesion site, decreased the glial fibrillary acidic protein expression, and increased the expression of NF-200. Moreover, duraplasty with PHBV/PLA/Col membranes improved locomotor functional recovery at 8 weeks post-injury. Thus, duraplasty with PHBV/PLA/Col membranes decreased the glial scar formation and promoted axon growth by inhibiting inflammasome activation and modulating macrophage polarization in acute spinal cord injury.
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Affiliation(s)
- Tengfei Zhao
- Department of Orthopedic Surgery, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Kan Xu
- Department of Orthopedic Surgery, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Qionghua Wu
- Department of Orthopedic Surgery, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Chenggui Wang
- Department of Orthopedic Surgery, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Shining Xiao
- Department of Orthopedic Surgery, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Heyangzi Li
- Department of Basic Medicine Sciences, Zhejiang University School of Medicine, Hangzhou, China.,Department of Orthopaedics of Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Teng He
- Department of Basic Medicine Sciences, Zhejiang University School of Medicine, Hangzhou, China.,Department of Orthopaedics of Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Linlin Wang
- Department of Basic Medicine Sciences, Zhejiang University School of Medicine, Hangzhou, China.,Department of Orthopaedics of Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Fangcai Li
- Department of Orthopedic Surgery, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Qixin Chen
- Department of Orthopedic Surgery, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
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Zouhair S, Dal Sasso E, Tuladhar SR, Fidalgo C, Vedovelli L, Filippi A, Borile G, Bagno A, Marchesan M, De Rossi G, Gregori D, Wolkers WF, Romanato F, Korossis S, Gerosa G, Iop L. A Comprehensive Comparison of Bovine and Porcine Decellularized Pericardia: New Insights for Surgical Applications. Biomolecules 2020; 10:E371. [PMID: 32121155 PMCID: PMC7175169 DOI: 10.3390/biom10030371] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 02/15/2020] [Accepted: 02/17/2020] [Indexed: 12/11/2022] Open
Abstract
Xenogeneic pericardium-based substitutes are employed for several surgical indications after chemical shielding, limiting their biocompatibility and therapeutic durability. Adverse responses to these replacements might be prevented by tissue decellularization, ideally removing cells and preserving the original extracellular matrix (ECM). The aim of this study was to compare the mostly applied pericardia in clinics, i.e. bovine and porcine tissues, after their decellularization, and obtain new insights for their possible surgical use. Bovine and porcine pericardia were submitted to TRICOL decellularization, based on osmotic shock, detergents and nuclease treatment. TRICOL procedure resulted in being effective in cell removal and preservation of ECM architecture of both species' scaffolds. Collagen and elastin were retained but glycosaminoglycans were reduced, significantly for bovine scaffolds. Tissue hydration was varied by decellularization, with a rise for bovine pericardia and a decrease for porcine ones. TRICOL significantly increased porcine pericardial thickness, while a non-significant reduction was observed for the bovine counterpart. The protein secondary structure and thermal denaturation profile of both species' scaffolds were unaltered. Both pericardial tissues showed augmented biomechanical compliance after decellularization. The ECM bioactivity of bovine and porcine pericardia was unaffected by decellularization, sustaining viability and proliferation of human mesenchymal stem cells and endothelial cells. In conclusion, decellularized bovine and porcine pericardia demonstrate possessing the characteristics that are suitable for the creation of novel scaffolds for reconstruction or replacement: differences in water content, thickness and glycosaminoglycans might influence some of their biomechanical properties and, hence, their indication for surgical use.
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Affiliation(s)
- Sabra Zouhair
- Cardiovascular Regenerative Medicine, Department of Cardiac Thoracic Vascular Sciences and Public Health, University of Padua, I-35128 Padua, Italy
| | - Eleonora Dal Sasso
- Cardiovascular Regenerative Medicine, Department of Cardiac Thoracic Vascular Sciences and Public Health, University of Padua, I-35128 Padua, Italy
| | - Sugat R. Tuladhar
- Cardiovascular Regenerative Medicine, Department of Cardiac Thoracic Vascular Sciences and Public Health, University of Padua, I-35128 Padua, Italy
| | - Catia Fidalgo
- Cardiovascular Regenerative Medicine, Department of Cardiac Thoracic Vascular Sciences and Public Health, University of Padua, I-35128 Padua, Italy
| | - Luca Vedovelli
- Biostatistics, Department of Cardiac Thoracic Vascular Sciences and Public Health, University of Padua, I-35128 Padua, Italy
| | - Andrea Filippi
- Department of Physics and Astronomy "G. Galilei," University of Padua, I-35131 Padua, Italy
- Fondazione Bruno Kessler, I-38123 Trento, Italy
- Institute of Pediatric Research Città della Speranza, I-35127 Padua, Italy
| | - Giulia Borile
- Department of Physics and Astronomy "G. Galilei," University of Padua, I-35131 Padua, Italy
- Institute of Pediatric Research Città della Speranza, I-35127 Padua, Italy
- Department of Biomedical Sciences, University of Padua, I-35131 Padua, Italy
| | - Andrea Bagno
- Department of Industrial Engineering, University of Padua, I-35131 Padua, Italy
- L.I.F.E.L.A.B. Program, Consorzio per la Ricerca Sanitaria (CORIS), Veneto Region, I-35127 Padua, Italy
| | - Massimo Marchesan
- Cardiovascular Regenerative Medicine, Department of Cardiac Thoracic Vascular Sciences and Public Health, University of Padua, I-35128 Padua, Italy
| | | | - Dario Gregori
- Biostatistics, Department of Cardiac Thoracic Vascular Sciences and Public Health, University of Padua, I-35128 Padua, Italy
| | - Willem F. Wolkers
- Institute of Multiphase Processes, Leibniz Universität Hannover, D-30167 Hannover, Germany
| | - Filippo Romanato
- Department of Physics and Astronomy "G. Galilei," University of Padua, I-35131 Padua, Italy
- Institute of Pediatric Research Città della Speranza, I-35127 Padua, Italy
- L.I.F.E.L.A.B. Program, Consorzio per la Ricerca Sanitaria (CORIS), Veneto Region, I-35127 Padua, Italy
- Laboratory for Nanofabrication of Nanodevices, I-35127 Padua, Italy
| | - Sotirios Korossis
- Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, D-30625 Hannover, Germany
- Lower Saxony Centre for Biomedical Engineering Implant Research and Development, Hannover Medical School, D-30625 Hannover, Germany
- Centre for Biological Engineering, Wolfson School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University, Loughborough LE11 3TU, Leicestershire, UK
| | - Gino Gerosa
- Cardiovascular Regenerative Medicine, Department of Cardiac Thoracic Vascular Sciences and Public Health, University of Padua, I-35128 Padua, Italy
- L.I.F.E.L.A.B. Program, Consorzio per la Ricerca Sanitaria (CORIS), Veneto Region, I-35127 Padua, Italy
| | - Laura Iop
- Cardiovascular Regenerative Medicine, Department of Cardiac Thoracic Vascular Sciences and Public Health, University of Padua, I-35128 Padua, Italy
- L.I.F.E.L.A.B. Program, Consorzio per la Ricerca Sanitaria (CORIS), Veneto Region, I-35127 Padua, Italy
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Crapo PM, Tottey S, Slivka PF, Badylak SF. Effects of biologic scaffolds on human stem cells and implications for CNS tissue engineering. Tissue Eng Part A 2013; 20:313-23. [PMID: 24004192 DOI: 10.1089/ten.tea.2013.0186] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Biologic scaffolds composed of mammalian extracellular matrix (ECM) promote constructive remodeling of tissues via mechanisms that include the recruitment of endogenous stem/progenitor cells, modulation of the host innate immune response, and influence of cell fate differentiation. Such scaffold materials are typically prepared by decellularization of source tissues and are prepared as sheets, powder, or hydrogels. It is plausible that ECM derived from an anatomically distinct tissue would have unique or specific effects on cells that naturally reside in this same tissue. The present study investigated the in vitro effect of a soluble form of ECM derived from central nervous system (CNS) tissue, specifically the spinal cord or brain, versus ECM derived from a non-CNS tissue; specifically, the urinary bladder on the behavior of neural stem cells (NSCs) and perivascular stem cells. All forms of ECM induce positive, mitogenic, and chemotactic effects at concentrations of approximately 100 μg/mL without affecting stem cell viability. CNS-derived ECMs also showed the ability to differentiate NSCs into neurons as indicted by βIII-tubulin expression in two-dimensional culture and neurite extension on the millimeter scale after 24 days of three-dimensional cultures in an ECM hydrogel. These results suggest that solubilized forms of ECM scaffold materials may facilitate the postinjury healing response in CNS tissues.
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Affiliation(s)
- Peter M Crapo
- McGowan Institute for Regenerative Medicine, University of Pittsburgh , Pittsburgh, Pennsylvania
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