Reactive Oxygen Species (ROS) Are Not a Key Determinant for Zika Virus-Induced Apoptosis in SH-SY5Y Neuroblastoma Cells.

Reactive Oxygen Species (ROS) Are Not a Key Determinant for Zika Virus-Induced Apoptosis in SH-SY5Y Neuroblastoma Cells.
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DOI:
10.3390/v13112111
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发表时间:
2021-10-20
期刊:
Viruses
影响因子:
--
通讯作者:
Franca RFO
Franca RFO
中科院分区:
其他
文献类型:
--
作者:
Mendonça-Vieira LR;Aníbal-Silva CE;Menezes-Neto A;Azevedo EAN;Zanluqui NG;Peron JPS;Franca RFO

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简介:ZIKV 是一种高度嗜神经病毒,可通过线粒体损伤和内在的凋亡信号传导导致受感染的神经祖细胞死亡。在这种情况下,活性氧(ROS)在寨卡病毒引起的神经细胞死亡中的作用仍然难以捉摸。目的:我们旨在评估这些细胞成分在感染 ZIKV 的人未分化神经母细胞瘤细胞系死亡中的作用。结果:ZIKV 感染导致 SH-SY5Y 细胞广泛死亡,涉及存活和凋亡反应的多个基因上调,以及线粒体染色与 ZIKV 包膜 (E) 蛋白共定位。值得注意的是,在 ZIKV 感染未分化的 SH-SY5Y 细胞期间,细胞内活性氧 (ROS) 水平没有改变,并且与这些结果一致,用广泛研究的 ROS 清除剂 N-乙酰半胱氨酸 (NAC) 处理感染细胞并不能阻止这些细胞的细胞死亡。结论:总而言之,我们的结果表明,过量的 ROS 产生并不是 ZIKV 感染中 SH-SY5Y 细胞死亡的主要触发因素。
Introduction: ZIKV is a highly neurotropic virus that can cause the death of infected neuroprogenitor cells through mitochondrial damage and intrinsic apoptotic signaling. In this context, the role of reactive oxygen species (ROS) in neuronal cell death caused by ZIKV still remains elusive. Objective: We aimed at evaluating the role of these cellular components in the death of human undifferentiated neuroblastoma cell line infected with ZIKV. Results: ZIKV infection resulted in the extensive death of SH-SY5Y cells with the upregulation of several genes involved in survival and apoptotic responses as well as the colocalization of mitochondrial staining with ZIKV Envelope (E) protein. Notably, levels of intracellular reactive oxygen species (ROS) were not altered during ZIKV infection in undifferentiated SH-SY5Y cells, and consistent with these results, the treatment of infected cells with the widely studied ROS scavenger N-acetylcysteine (NAC) did not prevent cell death in these cells. Conclusion: Altogether, our results suggest that excessive ROS production is not the main trigger of SH-SY5Y cells death in ZIKV infection.
抑制细胞凋亡可防止西尼罗河病毒诱导的细胞死亡。
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