人胎盘与脐动、静脉血造血干-祖细胞归巢相关黏附分子表达的研究
14页1、1人胎盘与脐动、静脉血造血干/ 祖细胞归巢相关黏附分子表达的研究作者:苏蕊,陈代雄,方宁,陈琦,龚芳泽【摘要 】 为了评价人胎盘组织造血干/祖细胞(hematopoietic stem/progenitor cell,HSPC)的归巢能力,采用机械法制备人胎盘组织单个细胞悬液,用流式细胞术分析胎盘组织及脐动、静脉血有核细胞中 CD34+细胞及其亚群的含量,检测三者来源的 CD34+细胞表面归巢相关黏附分子CD44、CD11a、CD62L、CD49d 、CD49e 和 CD54 的表达水平。结果显示,胎盘组织 CD34+细胞及 CD34+CD38-细胞百分率明显高于脐动、静脉血;脐动脉与脐静脉血中 HSPC 百分率没有明显差异。胎盘来源 CD34+细胞高度表达黏附分子CD11a、CD49d 、CD44、CD49e 及 CD54,其中表达 CD49e 及CD54 水平明显高于脐动、静脉血 CD34+细胞。胎盘来源的CD34+CD62L+细胞百分率为(64.5815.52)%,低于脐静脉血来源的表达。结论:人胎盘富含 HSPC。胎盘来源的 CD34+细胞多数黏附分子的表达水平近似或高于脐血,
2、提示胎盘 HSPC 的归巢能力有可能强于脐带血。 2【关键词】 胎盘Expressions of Homing-Related Adhesion Molecules in Hemato-poietic Stem/Progenitor Cells Derived from Human Placenta, Umbilical Cord Arterial and Venous BloodAbstract The aim of this study was to evaluate the homing capabilities of hematopoietic stem/progenitor cells (HSPCs) derived from human placenta tissues (PT). Single cell suspension of human PT was prepared by mechanical method. The expression levels of homing-related adhesion molecules (HRAM) including CD
3、11a,CD49d ,CD44,CD49e,CD62L and CD54 on CD34+ cells and the percentages of CD34+ cells and their subpopulations in nucleated cells (NC) from fresh human PT,umbilical cord arterial blood (UCAB) and umbilical cord venous blood(UCVB) were detected by using flow cytometry. The results showed that the percentage of CD34+cells and CD34+CD38- cells in placenta were higher than those in UCAB and UCVB. There were no significant difference in percentage of HSPC between UCAB and UCVB. Placenta-derived CD34
4、+ cells strongly expressed 3CD11a,CD49d ,CD44,CD49e and CD54,among which expression levels of CD49e and CD54 on placenta-derived CD34+ cells were significantly higher than those on UCAB and UCVB-derived CD34+ cells. While the percentage of CD34+CD62L+ cells in placenta was only lower than that in UCVB. It is concluded that human placenta is rich in HSPC. Moreover,the expression levels of most HRAM in CD34+ cells from PT are higher than those from UCAB and UCVB or are close to them. It suggested
《人胎盘与脐动、静脉血造血干-祖细胞归巢相关黏附分子表达的研究》由会员油条分享,可在线阅读,更多相关《人胎盘与脐动、静脉血造血干-祖细胞归巢相关黏附分子表达的研究》请在金锄头文库上搜索。
最新学校新冠肺炎疫情突发事件应急处置办法和流程
最新疫情防控期间学校用餐与食堂管理规定和师生一日流程图
最新Xx省xx区返学师生员工健康登记表
诊所简介
高中英语-第二单元-《the-United-Kingdom》课件-新必修5
新版新目标英语七年级下unit4--Don't-eat-in-class课件
新版PEP六年级英语unit6-how-do-you-feel-A-Let's-talk
安徽专版2018秋八年级英语上册Unit5Doyouwanttowatchagameshow第6课时习题课件新人教目标版
酸的和甜的教学课件.doc
Lesson-1-Where-do-we-go-from-here概要
Docker技术与实践
七年级英语下册-Unit-9-What-does-he-look-like(第3课时)(Grammar-Focus-3d)同步语法精讲精练课件-(新版
《I'm-going-to-do-the-high-jump》PPT课件3
高二英语外研版-必修5-Module-2-A-Job-Worth-Doing-Reading课件
英语片段教学-I-can-do-it
Adobe公司简介
安徽专版2018秋八年级英语上册Unit5Doyouwanttowatchagameshow第2课时习题课件新人教目标版
第二单元全课件Unit2-What-time-do-you-go-to-school-全课件
第18课-Windows的磁盘管理与安全
第12章--Windows-Server-2008路由及远程访问
2023-11-06 36页
2023-11-30 12页
2024-01-19 60页
2023-12-01 1页
2024-02-20 1页
2022-12-16 6页
2023-07-19 7页
2022-10-25 6页
2023-11-04 30页
2022-08-13 17页