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Cardiomyocyte Transplantation after Myocardial Infarction Alters the Immune Response in the Heart.
Cells ( IF 5.1 ) Pub Date : 2020-08-03 , DOI: 10.3390/cells9081825
Praveen Vasudevan 1, 2, 3 , Markus Wolfien 4 , Heiko Lemcke 1, 2 , Cajetan Immanuel Lang 5 , Anna Skorska 1, 2 , Ralf Gaebel 1, 2 , Dirk Koczan 6 , Tobias Lindner 7 , Robby Engelmann 8 , Brigitte Vollmar 9 , Bernd Joachim Krause 10 , Olaf Wolkenhauer 4, 11 , Hermann Lang 3 , Gustav Steinhoff 1, 2 , Robert David 1, 2
Affiliation  

We investigated the influence of syngeneic cardiomyocyte transplantation after myocardial infarction (MI) on the immune response and cardiac function. Methods and Results: We show for the first time that the immune response is altered as a result of syngeneic neonatal cardiomyocyte transplantation after MI leading to improved cardiac pump function as observed by magnetic resonance imaging in C57BL/6J mice. Interestingly, there was no improvement in the capillary density as well as infarct area as observed by CD31 and Sirius Red staining, respectively. Flow cytometric analysis revealed a significantly different response of monocyte-derived macrophages and regulatory T cells after cell transplantation. Interestingly, the inhibition of monocyte infiltration accompanied by cardiomyocyte transplantation diminished the positive effect of cell transplantation alone. The number of CD68+ macrophages in the remote area of the heart observed after four weeks was also different between the groups. Transcriptome analysis showed several changes in the gene expression involving circadian regulation, mitochondrial metabolism and immune responses after cardiomyocyte transplantation. Conclusion: Our work shows that cardiomyocyte transplantation alters the immune response after myocardial infarction with the recruited monocytes playing a role in the beneficial effect of cell transplantation. It also paves the way for further optimization of the efficacy of cardiomyocyte transplantation and their successful translation in the clinic.

中文翻译:

心肌梗塞后心肌细胞移植改变心脏的免疫反应。

我们调查了心肌梗死(MI)后同基因心肌细胞移植对免疫反应和心脏功能的影响。方法和结果:我们首次显示,通过磁共振成像在C57BL / 6J小鼠中观察到,MI后同基因新生儿心肌细胞移植导致免疫应答改变,导致心脏泵功能改善。有趣的是,分别通过CD31和Sirius Red染色观察到的毛细血管密度和梗塞面积没有改善。流式细胞仪分析显示,单核细胞衍生的巨噬细胞和调节性T细胞在细胞移植后的反应显着不同。有趣的是 单核细胞浸润伴随心肌细胞移植的抑制作用减弱了单独细胞移植的积极作用。两组之间观察到的心脏远端区域中CD68 +巨噬细胞的数量也不同。转录组分析显示了心肌细胞移植后基因表达的一些变化,包括昼夜调节,线粒体代谢和免疫反应。结论:我们的工作表明,心肌细胞移植改变了心肌梗塞后的免疫反应,募集的单核细胞在细胞移植的有益作用中发挥了作用。它还为进一步优化心肌细胞移植的功效及其在临床上的成功翻译铺平了道路。两组之间观察到的心脏远端区域中CD68 +巨噬细胞的数量也不同。转录组分析显示了心肌细胞移植后基因表达的一些变化,包括昼夜调节,线粒体代谢和免疫反应。结论:我们的工作表明,心肌细胞移植可改变心肌梗塞后的免疫反应,募集的单核细胞在细胞移植的有益作用中发挥作用。它还为进一步优化心肌细胞移植的功效及其在临床上的成功翻译铺平了道路。两组之间观察到的心脏远端区域中CD68 +巨噬细胞的数量也不同。转录组分析显示了心肌细胞移植后基因表达的一些变化,包括昼夜调节,线粒体代谢和免疫反应。结论:我们的工作表明,心肌细胞移植改变了心肌梗塞后的免疫反应,募集的单核细胞在细胞移植的有益作用中发挥了作用。它还为进一步优化心肌细胞移植的功效及其在临床上的成功翻译铺平了道路。转录组分析显示了心肌细胞移植后基因表达的一些变化,包括昼夜调节,线粒体代谢和免疫反应。结论:我们的工作表明,心肌细胞移植改变了心肌梗塞后的免疫反应,募集的单核细胞在细胞移植的有益作用中发挥了作用。它还为进一步优化心肌细胞移植的功效及其在临床上的成功翻译铺平了道路。转录组分析显示了心肌细胞移植后基因表达的一些变化,包括昼夜调节,线粒体代谢和免疫反应。结论:我们的工作表明,心肌细胞移植改变了心肌梗塞后的免疫反应,募集的单核细胞在细胞移植的有益作用中发挥了作用。它还为进一步优化心肌细胞移植的功效及其在临床上的成功翻译铺平了道路。
更新日期:2020-08-03
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