Surface markers for the murine oval cell response.

Surface markers for the murine oval cell response.
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DOI:
10.1002/hep.22468
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发表时间:
2008-10
期刊:
影响因子:
13.5
通讯作者:
Grompe, Markus
Grompe, Markus
中科院分区:
医学1区
文献类型:
--
作者:
Dorrell, Craig;Erker, Laura;Lanxon-Cookson, Kelsea M.;Abraham, Stephanie L.;Victoroff, Tristan;Ro, Simon;Canaday, Pamela S.;Streeter, Philip R.;Grompe, Markus

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肝脏中祖细胞激活的生物学在医学和科学上具有相当大的研究价值。小鼠可用的强大基因工具使其成为研究这一涉及许多不同细胞类型的复杂过程的理想模型系统。然而,与用于造血细胞的试剂相比,用于分离和研究不同肝脏亚群的试剂相当有限。为了生产对卵圆细胞反应更具特异性的细胞表面反应性试剂,我们通过用经3,5 - 二乙氧羰基 - 1,4 - 二氢可力丁处理的成年小鼠肝脏中的酶分散非实质细胞免疫Fischer大鼠,产生了一组新的单克隆抗体。由此产生的每种抗体都能识别一种存在于肝脏细胞亚群上的表面抗原,并允许通过荧光激活细胞分选技术对相关亚群进行活性分离。在正常肝细胞以及卵圆细胞激活的不同阶段观察到不同的活性,这表明其在祖细胞鉴定方面具有潜在用途。利用这些工具对肝细胞进行细分应该有助于研究导管和导管周围肝细胞类型(包括祖细胞)的生物学。 已经开发出一组新的表面反应性单克隆抗体来支持对小鼠卵圆细胞反应的研究。
The biology of progenitor activation in the liver is of considerable medical and scientific interest. The powerful genetic tools available for the mouse make it an ideal model system to study this complex process involving many different cell types. However, reagents for the isolation and study of distinct hepatic subpopulations have been quite limited compared to those available for hematopoietic cells. To produce cell surface reactive reagents more specific for the oval cell response, we generated a new collection of monoclonal antibodies by immunization of Fischer rats with enzymatically dispersed nonparenchymal cells from the livers of adult mice treated with 3,5-diethoxycarbonyl-1,4-dihydrocollidine. Each of the resulting antibodies recognized a surface antigen present on a liver cell subset and permitted the viable isolation of the associated subpopulation by fluorescence-activated cell sorting. Differential activity was observed on normal liver cells and at different stages of oval cell activation, indicating potential utility for progenitor cell identification. The subdivision of liver cells using these tools should facilitate the study of the biology of ductal and periductal hepatic cell types, including progenitors. A new panel of surface reactive monoclonal antibodies to support investigation of the murine oval cell response has been developed.
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