A novel alkaline phosphatase-based isolation method allows characterization of intraepithelial lymphocytes from villi tip and crypt regions of murine small intestine.

A novel alkaline phosphatase-based isolation method allows characterization of intraepithelial lymphocytes from villi tip and crypt regions of murine small intestine.
复制标题

一种基于碱性磷酸酶的新型分离方法可以对来自小鼠小肠绒毛尖端和隐窝区域的上皮内淋巴细胞进行表征。

DOI:
10.1006/bbrc.1997.7839
复制
发表时间:
1997
期刊:
Biochemical and biophysical research communications.
影响因子:
--
通讯作者:
Kiyono,H
Kiyono,H
中科院分区:
--
文献类型:
--
作者:
Kawabata,S;Boyaka,PN;Coste,M;Fujihashi,K;Hamada,S;McGhee,JR;Kiyono,H

文献摘要

参考文献

被引文献

相似文献

肠上皮内淋巴细胞(IEL)的分离是研究肠粘膜细胞和分子串扰的重要前提。由于肠上皮细胞在绒毛尖端和隐窝水平表现出不同的功能特征,这种差异可能延伸到IEL。我们开发了一种从这些不同上皮部位分离IEL的机械程序来验证我们的假设。通过连续搅拌培养从肠上皮中分离的细胞,根据其碱性磷酸酶(AP)活性进行分离,因为绒毛尖端和隐窝部分分别表达高和低AP活性。在Percoll梯度下进一步纯化得到的IEL制剂中,整合素αIELchain+、CD3+T细胞的含量为bb0 ~ 90%,不含Ig+细胞。与隐窝IEL相比,绒毛尖端IEL制剂具有更多的低密度IEL,这表明在肠绒毛尖端和隐窝水平上发生了不同的IEL-上皮细胞相互作用。
The isolation of intestinal intraepithelial lymphocytes (IEL) is a major prerequisite for the investigation of cellular and molecular cross-talk in the intestinal mucosa. Since intestinal epithelial cells exhibit distinct functional features at the villi tip and crypt levels, such differences could extend to IEL. We developed a mechanical procedure for isolation of IEL from these distinct epithelial sites to test our hypothesis. Cells isolated from the intestinal epithelium by sequential incubations under stirring were segregated based upon their alkaline phosphatase (AP) activity since villi tip and crypt fractions expressed high and low AP activity, respectively. IEL preparations obtained after a further purification step in Percoll gradient contained >90% Integrin αIELchain+, CD3+T cells, and no Ig+cells. Villi tip IEL preparations possessed increased numbers of low density IEL when compared to crypt IEL, suggesting that distinct IEL-epithelial cell interactions occur at the intestinal villi tip and crypt levels.
DOI: --
发表时间: 1990
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Fujihashi,K;Taguchi,T;McGhee,JR;Eldridge,JH;Bruce,MG;Green,DR;Singh,B;Kiyono,H
通讯作者: Kiyono,H
DOI: 10.1016/s1074-7613(94)80015-4
发表时间: 1994-12
期刊: Immunity
影响因子: 32.4
作者:
L. Puddington;S. Olson;L. Lefrançois
通讯作者: L. Puddington;S. Olson;L. Lefrançois
DOI: 10.1038/336479a0
发表时间: 1988-12-01
期刊: NATURE
影响因子: 64.8
作者:
BONNEVILLE, M;JANEWAY, CA;TONEGAWA, S
通讯作者: TONEGAWA, S
肠上皮内淋巴细胞亚群的差异功能。
DOI: --
发表时间: 1992
期刊: Journal of immunology (Baltimore, Md. : 1950)
影响因子: --
作者:
Barrett,TA;Gajewski,TF;Danielpour,D;Chang,EB;Beagley,KW;Bluestone,JA
通讯作者: Bluestone,JA
T细胞受体γ/δ+上皮内淋巴细胞通过凋亡选择性死亡
DOI: 10.1002/eji.1830201242
发表时间: 1990
影响因子: 5.4
作者:
J. Viney;T. Macdonald
通讯作者: T. Macdonald