使用实验室菌株在体外Trypanosoma cruzi感染期间进行的差异性心肌细胞转录基因重塑,对致病宿主反应产生影响
Katherine-Sofia Candray-Medina1,2,3, Yu Nakagama4,5, Masamichi Ito6,7
1Department of Parasitology, Graduate School of Medicine, Osaka Metropolitan University, 1-4-3 Asahi-machi, Abeno-ku, Osaka, 545-8585, Japan.
Tropical medicine and health
|December 8, 2023
概括
不同的Trypanosoma cruzi菌株会影响心肌细胞基因表达,导致氧化应激和缩. 这项研究揭示了与查加斯心肌病进展相关的明显的转录基因特征.
科学领域:
- 心脏病学 心脏病学
- 分子生物学分子生物学
- 寄生虫学的寄生虫学
背景情况:
- 查加斯病会导致危及生命的心脏问题.
- 特里帕诺索马克鲁兹 (T. cruzi) 菌株的遗传变异可能会影响疾病的严重程度和查加斯心肌病 (CCM) 的进展.
研究的目的:
- 为了研究感染了不同的T. cruzi菌株的心肌细胞的转录组差异.
- 探索这些转录基因变化与CCM病原体之间的联系.
主要方法:
- HL-1心肌细胞感染了哥伦比亚,Y或图拉胡恩T. cruzi菌株.
- 微阵列分析是在感染后分离的RNA上进行的.
- 分析了基因表达,生物通路和细胞内活性氧物种 (ROS) 水平.
主要成果:
- 观察到氧化应激,缩,亡和MAPK信号通路的升级.
- 哥伦比亚/Y菌株独特地调节了谷氨/单碳代谢和代谢途径.
- T. cruzi感染显著增加了心肌细胞中的细胞内ROS水平.
结论:
- 氧化应激和缩途径是对T. cruzi感染心肌细胞的普遍反应.
- 和谷氨代谢的改变可能会将化应激和受损的基因清理与CCM病理生理学联系起来.
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