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Decellularization, cross-linking and heparin immobilization of porcine carotid arteries for tissue engineering vascular grafts

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机构: [1]Department of Vascular Surgery, Xuan Wu Hospital, Capital Medical University, No. 45, Changchun Street, Xicheng District, Beijing 100053, China
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关键词: Cross-linking Decellularization Heparin immobilization TEVGs

摘要:
Tissue engineering vascular grafts (TEVGs) have the potential to replace small-diameter grafts in bypass surgery which is good news for patients with cardiovascular disease. Decellularized arteries can be ideal TEVGs because their natural three-dimensional structures support the migration of host cells and vascular remodeling. There are many methods for decellularization without a standard protocol. In this study, a combination of Triton X-100 and sodium dodecyl sulfate (SDS) were used to prepare decellularized arteries. However, decellularization may damage the biochemical and mechanical properties to some degree. We used the cross-linking agents N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide hydrochloride (EDC) and N-hydroxysuccinimide (NHS) to improve mechanical properties and immobilize heparin to inhibit thrombogenesis. Histological analysis, scanning electron microscopy, biomechanical properties test, determination of immobilized heparin, active partial thrombin time assay, and subcutaneous embedding experiment were used to evaluate the efficiency of decellularization and the efficacy of heparinized cross-linked vascular scaffold. Results showed 1% Triton X-100 combined with 0.3% SDS can decellularize successfully. EDC and NHS cross-linking can improve the mechanical properties, reduce the inflammatory reaction and slow the degradation time. Heparin immobilized on the scaffolds can inhibit thrombogenesis effectively. This study indicated the heparinized cross-linked vascular scaffolds may be ideal scaffolds for TEVGs. © 2019, Springer Nature B.V.

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出版当年[2018]版:
大类 | 4 区 医学
小类 | 4 区 细胞生物学 4 区 工程:生物医学
最新[2025]版:
大类 | 4 区 医学
小类 | 4 区 细胞生物学 4 区 工程:生物医学
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出版当年[2017]版:
Q3 ENGINEERING, BIOMEDICAL Q4 CELL BIOLOGY
最新[2023]版:
Q4 CELL BIOLOGY Q4 ENGINEERING, BIOMEDICAL

影响因子: 最新[2023版] 最新五年平均 出版当年[2017版] 出版当年五年平均 出版前一年[2016版] 出版后一年[2018版]

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第一作者机构: [1]Department of Vascular Surgery, Xuan Wu Hospital, Capital Medical University, No. 45, Changchun Street, Xicheng District, Beijing 100053, China
通讯作者:
通讯机构: [1]Department of Vascular Surgery, Xuan Wu Hospital, Capital Medical University, No. 45, Changchun Street, Xicheng District, Beijing 100053, China
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