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Effect of TGF-beta and TNF-alpha treatment in Trypanosoma cruzi-infected cardiomyocytes: new insights on Chagas' disease extracellular matrix regulation

机译:TGF-β和TNF-α治疗在脑瘤瘤瘤瘤感染心肌细胞中的影响:对黏磁疾病细胞外基质调节的新见解

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Extracellular matrix (ECM) is accumulated in cardiac tissue during Chagas' disease, leading to fibrosis. However, the specific mechanisms that regulate ECM during Chagas disease in cardiomyocytes still need to be investigated. Digital image analysis revealed that treatment of cardiomyocytes cultures with TGF-beta and TNF-alpha leads to an enhancement of FN matrix only in uninfected cardiomyocytes, while infected myocytes displayed low FN expression. Additionally, cytokines treatment induced a 2-fold increase in the FN expression in cardiomyocytes detected by western blot, whereas T.cruzi infection significantly reduced FN levels in all conditions. In contrast, no change in the LM expression was detected after cytokines treatment by western blotting, whereas alteration on its distribution was visualized by indirect immunofluorescence.
机译:细胞外基质(ECM)在Chagas疾病中累积在心脏组织中,导致纤维化。然而,需要调查在心肌细胞中调节ECM的特定机制仍然需要调查心肌细胞中的CHAGAS病。数字图像分析显示,用TGF-β和TNF-α处理心肌细胞培养物,仅导致FN基质的增强仅在未感染的心肌细胞中,而受感染的肌细胞显示出低FN表达。另外,细胞因子治疗诱导了Western印迹检测到的心肌细胞中FN表达的2倍,而T.Cruzi感染在所有条件下显着降低了FN水平。相反,通过蛋白质印迹处理细胞因子处理后没有LM表达的变化,而间接免疫荧光可视化其分布的改变。

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