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成像足体动力学与基质降解。

Imaging podosome dynamics and matrix degradation.

作者信息

Starnes Taylor W, Cortesio Christa L, Huttenlocher Anna

机构信息

Department of Medical Microbiology and Immunology, University of Wisconsin-Madison, Madison, WI, USA.

出版信息

Methods Mol Biol. 2011;769:111-36. doi: 10.1007/978-1-61779-207-6_9.

Abstract

Invasive cell migration is critical for leukocyte trafficking into tissues. Podosomes are matrix-degrading adhesive structures that are formed by macrophages and are necessary for macrophage migration and invasion. Here, we describe methods for imaging and quantifying podosomes in primary human macrophages and in THP-1 cells, a monocyte cell line that can be differentiated to a macrophage-like state. Moreover, we outline detailed methods for live imaging of podosomes, which are highly dynamic, and for the quantification of rates of podosome turnover. Finally, we discuss methods for the quantitative analysis of matrix degradation on fluorescent-gelatin-coated cover slips.

摘要

侵袭性细胞迁移对于白细胞进入组织的过程至关重要。足体是由巨噬细胞形成的降解基质的粘附结构,是巨噬细胞迁移和侵袭所必需的。在这里,我们描述了在原代人巨噬细胞和THP-1细胞(一种可分化为巨噬细胞样状态的单核细胞系)中对足体进行成像和定量的方法。此外,我们概述了对高度动态的足体进行实时成像以及定量足体周转速率的详细方法。最后,我们讨论了在荧光明胶包被的盖玻片上对基质降解进行定量分析的方法。

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