{{'Search' | translate}}
 

Acetic acid

Company: Sigma-Aldrich
Catalog#: 109088
Bio-protocol()
Company-protocol()
Other protocol()

Activation of Fibroblast Contractility via Cell-Cell Interactions and Soluble Signals
Author:
Date:
2018-09-20
[Abstract]  The collagen contraction assay is an in vitro, three-dimensional method to determine the factor(s) affecting the contractile behavior of activated cells such as fibroblasts in either physiological or pathological scenarios. The collagen lattices/hydrogels are seeded with fibroblasts to mimic the interactions between these cells and their surrounding extracellular matrix proteins in the connective tissue. This method is an important platform to assess components as potential therapeutic targets to prevent pathologies such as fibrosis, which are manifestations of hyperactivated fibroblasts. We have described a basic version of this collagen contraction assay, which is amenable to customization using different cell types under diverse experimental conditions. [摘要]  胶原收缩测定是体外三维方法,用于确定影响生理或病理场景中活化细胞如成纤维细胞的收缩行为的因子。 胶原蛋白晶格/水凝胶用成纤维细胞接种,以模拟这些细胞与其周围细胞外基质蛋白在结缔组织中的相互作用。 该方法是评估组分作为潜在治疗靶标的重要平台,以预防纤维化等病症,这些病症是过度活化的成纤维细胞的表现。 我们已经描述了这种胶原收缩测定的基本版本,其适于在不同实验条件下使用不同细胞类型进行定制。

【背景】细胞外基质的组织收缩和重塑是许多生理条件(例如伤口愈合)中的基本过程。这两种现象的核心是成纤维细胞,它不仅产生和分泌细胞外基质蛋白,而且还可以通过机械相互作用重组它们。有趣的是,这些细胞行为通常在诸如纤维化的病理条件下被夸大(Desmoulière et al。,2005),从而说明需要理解这些过程的分子调节。虽然人们早就知道,胶原蛋白是细胞外基质的主要成分之一,是组织收缩的主要参与者(Bell et al。,1979),对机械细节的透彻理解。这个过程仍然难以捉摸。对体外成纤维细胞胶原基质体外收缩的研究使研究人员能够识别导致组织收缩的新型运动员(Ngo et al。,2006; Su and Chen, 2015年)。基于该测定,可溶性因子如TGFβ(Levi-Schaffer 等,1999)和免疫细胞(Garbuzenko et al。,2002; ...

Comments