کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6484613 | 1416105 | 2018 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Controlled release of collagen-binding SDF-1α from the collagen scaffold promoted tendon regeneration in a rat Achilles tendon defect model
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Controlled release of collagen-binding SDF-1α from the collagen scaffold promoted tendon regeneration in a rat Achilles tendon defect model Controlled release of collagen-binding SDF-1α from the collagen scaffold promoted tendon regeneration in a rat Achilles tendon defect model](/preview/png/6484613.png)
چکیده انگلیسی
It had been demonstrated that stromal cell-derived factor-1α (SDF-1α) could promote in situ tendon regeneration by recruiting endogenous cells. However, native SDF-1α diffuses too fast in vivo, reducing its local concentration and efficacy. In this study, we prepared a recombinant SDF-1α containing a collagen-binding domain (CBD-SDF-1α) and developed a functional collagen scaffold by tethering CBD-SDF-1α on the collagen scaffold for in situ tendon regeneration. CBD-SDF-1α could induce the migration of mesenchymal stem cells, dermal fibroblasts and Achilles tendon fibroblasts in vitro, and achieve controlled release from the collagen scaffold. In a rat Achilles tendon defect model, the functional scaffold could increase the recruitment of CXCR4 positive fibroblast-like cells and the deposition of Tenascin-C at 7 days after implantation. After 4 and 12 weeks, the functional collagen scaffold could promote the expression of type I collagen, increase the diameters of collagen fibrils and improve the mechanical properties of regenerated tendons. Hence, the functional scaffold increased the efficacy of tendon regeneration by controlling release of SDF-1α, enhancing the recruitment of fibroblast-like cells and providing instructive microenvironment and mechanical support for tendon regeneration. Therefore, CBD-SDF-1α-modified collagen scaffold could serve as a practical application for tendon regeneration.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biomaterials - Volume 162, April 2018, Pages 22-33
Journal: Biomaterials - Volume 162, April 2018, Pages 22-33
نویسندگان
Jie Sun, Chenchen Mou, Qin Shi, Bing Chen, Xianglin Hou, Wen Zhang, Xiaoran Li, Yan Zhuang, Jiajia Shi, Yanyan Chen, Jianwu Dai,