首页> 外文期刊>Cell biology international. >Adventitial fibroblasts from apoE(-/-) mice exhibit the characteristics of transdifferentiation into myofibroblasts.
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Adventitial fibroblasts from apoE(-/-) mice exhibit the characteristics of transdifferentiation into myofibroblasts.

机译:来自apoE(-/-)小鼠的外源成纤维细胞表现出转分化为成肌纤维细胞的特征。

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Adventitial fibroblasts (AFs) are the main cell type in the adventitia, however, their role in atherosclerosis remains unclear. We have investigate the role of AFs in atherosclerotic lesion formation by comparing the characteristics of AFs from apoE(-/-) to C57BL/6 mice. A minority of AFs from apoE(-/-) mice expressed α-SM-actin, but no α-SM-actin-positive cells were found in AFs from C57BL/6 mice. The content of total collagens, and the mRNA levels of collagen I and collagen III in AFs of apoE(-/-) mice, were higher than in C57BL/6 mice. AFs from apoE(-/-) mice proliferate and migrate faster, and synthesized more TGF-β(1) , MCP-1, and PDGF-b AFs from apoE(-/-) mice have the characteristics of transdifferentiation into myofibroblasts, including enhanced proliferation and migration, along with synthesis of collagens and cytokines compared to AFs from C57BL/6 mice. The histological and functional characteristics of AFs may contribute to early atherosclerotic lesion formation.
机译:外膜成纤维细胞(AF)是外膜中的主要细胞类型,但是,它们在动脉粥样硬化中的作用仍不清楚。我们已经通过比较从apoE(-/-)到C57BL / 6小鼠的AF的特征来研究AF在动脉粥样硬化病变形成中的作用。来自apoE(-/-)小鼠的少数AFs表达α-SM-肌动蛋白,但在C57BL / 6小鼠的AFs中未发现α-SM-actin阳性细胞。 apoE(-/-)小鼠房颤的总胶原含量以及胶原I和III的mRNA水平均高于C57BL / 6小鼠。来自apoE(-/-)小鼠的AFs增殖和迁移更快,并且合成了更多的apoE(-/-)小鼠的TGF-β(1),MCP-1和PDGF-b AFs具有转分化为成肌纤维细胞的特征,包括与来自C57BL / 6小鼠的AF相比,增强的增殖和迁移以及胶原蛋白和细胞因子的合成。 AF的组织学和功能特征可能有助于早期动脉粥样硬化病变的形成。

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