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学科主题: 内分泌
题名:
从胎儿胰腺组织建立单克隆胰腺前体细胞的研究
其他题名: Monoclonal pancreatic progenitor cells established from human fetal pancreas
作者: 张玲; 洪天配; 胡江; 刘羿男; 吴永华; 李凌松
关键词: 巢蛋白 ; 胰腺干细胞 ; 胰岛移植 ; Islet transplantation
刊名: 中华糖尿病杂志
发表日期: 2004
DOI: 10.3321/j.issn:1006-6187.2004.06.021
卷: 12, 期:6, 页:442-445
收录类别: 中国科技核心期刊 ; CSCD
文章类型: Journal Article
摘要: 目的 探索一种新的人胰腺干细胞分离纯化体系. 方法从胎儿胰腺中分离获得巢蛋白阳性细胞群体,荧光激活细胞分选(FACS)技术分选单个side population(SP)细胞后进行单克隆细胞培养.应用逆转录-聚合酶链反应(RT-PCR)及放射免疫分析(RIA)方法,研究单克隆SP细胞在体外增殖和向胰岛内分泌细胞分化的能力. 结果胎儿胰腺组织经过分离和体外培养后,可获得巢蛋白阳性细胞,对其进行Hoechst 33342染色,分析显示SP细胞约占0.1%;RT-PCR证实SP细胞有ATP结合盒转运子G2(ABCG2)表达,而非SP细胞则未见表达;SP细胞的克隆形成率约为2.7%,而非SP细胞没有克隆形成.在多种细胞因子和无血清的条件下,单克隆SP细胞经诱导后出现胰岛素、胰升糖素和胰十二指肠同源盒基因-1(PDX-1)mRNA的表达,而巢蛋白、neurogenin3(Ngn3)和ABCG2 mRNA表达消失;RIA分析可检测到诱导后的细胞内有胰岛素产生. 结论首次报道从胎儿胰腺组织中分离并建立了单克隆胰腺前体细胞.该细胞在体外具有很强的增殖能力,并可分化为胰岛内分泌细胞. Objective To explore the possibility for establishing monoclonal pancreatic progenitor cells from the nestin positive cells of human fetal pancreas Methods Nestin positive cells were isolated from human fetal pancreas Single side population (SP) cell was sorted from the nestin positive cells via fluorescence activated cell sorting (FACS) and cultured for the assay of clone formation The capability of monoclonal SP cells to proliferate and differentiate into pancreatic islet endocrine cells in vitro were further studied by using reverse transcription polymerase chain reaction (RT PCR) and radioimmunoassay (RIA) Results Nestin positive cells were obtained from human fetal pancreas via cell culture in vitro The SP cells accounted for about 0 1% in the nestin positive cells via FACS analysis after Hoechst 33342 staining RT PCR revealed that ATP binding cassette transporter G2 (ABCG2) mRNA was expressed in the sorted SP cells, but not in the non SP cells The rate of clone formation was about 2 7% for the SP cells, whereas there was no clone formation for the non SP cells RT PCR analysis showed that the mRNA expressions of insulin, glucagon and pancreatic duodenal homeobox gene 1 (PDX 1) were detected,whereas the expressions of nestin, neurogenin 3 (Ngn3) and ABCG2 disappeared in the monoclonal SP cells exposed to serum free media with the cocktail of several growth factors Furthermore, the intra cellular insulin content was detected by RIA in the SP cells after the induction Conclusion It has been shown for the first time that the monoclonal pancreatic progenitor cells are isolated from human fetal pancreas and that they have highly proliferative potential and the capability to differentiate into insulin producing cells in vitro
语种: 中文
原文出处: 查看原文
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内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/72766
Appears in Collections:北京大学第三临床医学院_内分泌科_期刊论文

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作者单位: 1.100083,北京大学第三医院内分泌科
2.北京大学干细胞研究中心

Recommended Citation:
张玲,洪天配,胡江,等. 从胎儿胰腺组织建立单克隆胰腺前体细胞的研究[J]. 中华糖尿病杂志,2004,12(6):442-445.
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