中国组织工程研究 ›› 2013, Vol. 17 ›› Issue (5): 866-871.doi: 10.3969/j.issn.2095-4344.2013.05.016

• 细胞与组织移植 cell and tissue transplantation • 上一篇    下一篇

移植异体血管内皮祖细胞向大鼠损伤皮肤的趋化

刘 超1,赵计林1,苗雷英2   

  1. 1 南京大学附属口腔医学院正畸科,江苏省南京市 210008
    2 南京大学附属口腔医学院牙体牙髓病科,江苏省南京市 21000
  • 收稿日期:2012-04-20 修回日期:2012-06-26 出版日期:2013-01-29 发布日期:2013-01-29
  • 通讯作者: 苗雷英,博士,南京大学附属口腔医学院牙体牙髓病科,江苏省南京市 210008 miaoleiying80@163.com
  • 作者简介:刘超☆,男,1978年生,吉林省长春市人,汉族,2009年吉林大学口腔医学院毕业,博士,主要从事牙齿移动生物学方面的研究。 dxliuchao@163.com

Chemotaxis of vascular endothelial progenitor cells towards rat skin wounds following allogeneic transplantation

Liu Chao1, Zhao Ji-lin1, Miao Lei-ying2   

  1. 1 Department of Orthodontics, School of Stomatology, Nanjing University, Nanjing 210008, Jiangsu Province, China
    2 Department of Operative Dentistry and Endodontics, School of Stomatology, Nanjing University, Nanjing 210008, Jiangsu Province, China
  • Received:2012-04-20 Revised:2012-06-26 Online:2013-01-29 Published:2013-01-29
  • Contact: Miao Lei-ying, Doctor, Department of Operative Dentistry and Endodontics, School of Stomatology, Nanjing University, Nanjing 210008, Jiangsu Province, China miaoleiying80@163.com
  • About author:Liu Chao☆, Doctor, Department of Orthodontics, School of Stomatology, Nanjing University, Nanjing 210008, Jiangsu Province, China dxliuchao@163.com

摘要:

背景:目前关于移植异体内皮祖细胞参与机体缺血组织血管改建的研究正成为热点。
目的:观察移植的同种异体内皮祖细胞向大鼠皮肤损伤区趋化的情况。
方法:以BrdU标记体外培养的大鼠外周血内皮祖细胞,通过尾静脉回输于背部皮肤有切割伤的大鼠(实验组)体内,以正常大鼠为对照,采用免疫荧光染色观察细胞移植后1,3,7,14 d时受体大鼠皮肤损伤区BrdU阳性内皮祖细胞的数量变化情况,苏木精-伊红染色观察受体大鼠脾脏淋巴滤泡数量和体积变化情况。
结果与结论:移植的内皮祖细胞可以向大鼠皮肤损伤区趋化,3,7 d时内皮祖细胞数量最多(P < 0.05),14 d时在损伤区血管内壁中仍可见BrdU阳性细胞。实验组大鼠脾脏淋巴滤泡的数量和体积与对照组相比没有明显差异,证实移植同种异体内皮祖细胞没有引起明显的免疫排斥反应。

关键词: 器官移植, 组织移植, 血管内皮祖细胞, 移植, 皮肤损伤, 大鼠脾脏, 免疫排斥, 异体移植, 其他基金, 器官移植图片文章

Abstract:

BACKGROUND: It becomes a hotspot that allogeneic endothelial progenitor cells participate in vascular remodeling in ischemic tissues of the body.
OBJECTIVE: To observe the chemotaxis of allogeneic transplantation of vascular endothelial progenitor cells to rat skin wounds.
METHODS: Endothelial progenitor cells isolated from the peripheral blood of rats were cultured and labeled with BrdU, and then injected into rats with cutting injury on the back skin via the tail vein. Another normal rats served as controls. The number of BrdU positive endothelial progenitor cells in skin wound areas wasdetected by immunofluorescence staining at 1, 3, 7, 14 days after transplantation, and the changes in the number and volume of spleen lymphoid follicles were observed by hematoxylin-eosin staining.
RESULTS AND CONCLUSION: Endothelial progenitor cells could move to the injured skin areas. The number of endothelial progenitor cells was most at 3 and 7 days (P < 0.05), and BrdU positive cells could be seen until the 14th day in the vessel wall of the injured skin area. There was no significant difference between the two groups in the number and volume of spleen lymphoid follicles. No significant immunological rejection was caused by the allogeneic transplantation of vascular endothelial progenitor cells.

Key words: Organ transplantation, tissue transplantation, vascular endothelial progenitor cells, transplantation, skin injury, rat spleen, immune rejection, allogeneic transplantation, other grants-supported paper

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