利用骨髓间充质干细胞膜片原位构建“三明治”样组织工程牙周膜的实验研究 |
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引用本文: | 刘翠,朱彪,张欣然,刘东华,赵刚,郭希民,郭红延. 利用骨髓间充质干细胞膜片原位构建“三明治”样组织工程牙周膜的实验研究[J]. 军事医学, 2016, 0(4): 294-298. DOI: 10.7644/j.issn.1674-9960.2016.04.007 |
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作者姓名: | 刘翠 朱彪 张欣然 刘东华 赵刚 郭希民 郭红延 |
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作者单位: | 1. 辽宁医学院武警总医院研究生培养基地,北京,100039;2. 武警总医院口腔医学中心,北京,100039;3. 军事医学科学院基础医学研究所全军干细胞与再生医学重点实验室,北京,100850 |
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基金项目: | 国家自然科学基金面上资助项目(31170926,81170523) |
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摘 要: | 目的:探讨骨髓间充质干细胞( BMSC)膜片与胶原膜构建的“三明治”样结构植入体内后牙周膜的再生情况。方法制备BMSC细胞膜片,与胶原膜构建夹层结构复合于牙根表面,植入原位生长,分别于4和12周取材,利用X片、HE和天狼星红染色观察牙周膜的再生情况。结果相比单纯胶原膜组和空白对照组,实验组在牙根与牙槽骨间形成了清晰的软组织间隙,且有类Sharpey纤维存在,即形成了功能性牙周膜。结论细胞膜片-胶原膜-细胞膜片的“三明治”样夹层结构可较好地促进牙周膜再生。
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关 键 词: | 骨髓间充质干细胞 细胞膜片 牙周膜再生 细胞外基质 组织工程 |
Periodontal regeneration on surface of tooth root using BMSCs sheet combined with a sandwich structure:a canine model in situ |
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Abstract: | Objective To probe the periodontal ligament regeneration following the implantation of bone marrow mesenchymal cells ( BMSCs ) sheet-collagen membrane-BMSCs sheet sandwich complex.Methods BMSCs cell sheet-collagen membrane-BMSCs sheet complexes were compounded on the root surface of teeth of Beagle dogs.All the dogs were killed on 4 and 12 weeks after implantation.Periodontal ligament regeneration was observed by radiological means, HE staining and Sirus-red staining.Results Compared with collagen membrane group and blank control group, there was a clearly periodontal ligament like tissue and Sharpey′s like fibres formation in test group only.Conclustion Cell sheet-collagen membrane-cell sheet sandwich complex can effectively improve the periodontal ligament regeneration. |
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Keywords: | bone marrow mesenchymal stem cell cell sheet periodontal ligament regeneration extracellular matrix tissue engineering |
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