Transcription factor networks involved in cell death in the dorsal root ganglia following peripheral nerve injury.

Transcription factor networks involved in cell death in the dorsal root ganglia following peripheral nerve injury.
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周围神经损伤后背根神经节细胞死亡的转录因子网络

DOI:
10.4103/1673-5374.237183
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发表时间:
2018-09
影响因子:
6.1
通讯作者:
Yao C
Yao C
中科院分区:
医学2区
文献类型:
--
作者:
Qin J;Wu JC;Wang QH;Zhou SL;Mao SS;Yao C

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周围神经系统由于神经元内在的再生能力和容许的微环境而具有神经损伤后再生的潜力。再生过程涉及许多基因表达的变化,其中转录因子发挥关键作用。在此之前,我们通过RNA测序分析了大鼠坐骨神经损伤后不同时间点(0,3和9小时,1,4和7天)背根神经节神经元中失调的基因。在本研究中,我们研究了神经损伤后差异表达的转录因子,我们确定了丰富的分子和细胞功能,这些转录因子的不可逆性通路分析。该分析揭示了坐骨神经损伤后不同时间点参与细胞死亡的转录因子表达的动态变化。此外,我们还构建了细胞死亡过程中差异表达转录因子的调控网络,并鉴定了一些关键转录因子(如STAT 1、JUN、MYC和IRF 7)。我们通过定量逆转录-聚合酶链反应证实了一些关键转录因子(STAT 1和IRF 7)表达的变化。总的来说,我们的分析提供了坐骨神经损伤后背根神经节中转录因子变化的全球概述,并提供了对参与细胞死亡的调控转录因子网络的见解。
The peripheral nervous system has the potential to regenerate after nerve injury owing to the intrinsic regrowth ability of neurons and the permissive microenvironment. The regenerative process involves numerous gene expression changes, in which transcription factors play a critical role. Previously, we profiled dysregulated genes in dorsal root ganglion neurons at different time points (0, 3 and 9 hours, and 1, 4 and 7 days) after sciatic nerve injury in rats by RNA sequencing. In the present study, we investigated differentially expressed transcription factors following nerve injury, and we identified enriched molecular and cellular functions of these transcription factors by Ingenuity Pathway Analysis. This analysis revealed the dynamic changes in the expression of transcription factors involved in cell death at different time points following sciatic nerve injury. In addition, we constructed regulatory networks of the differentially expressed transcription factors in cell death and identified some key transcription factors (such as STAT1, JUN, MYC and IRF7). We confirmed the changes in expression of some key transcription factors (STAT1 and IRF7) by quantitative reverse transcription-polymerase chain reaction. Collectively, our analyses provide a global overview of transcription factor changes in dorsal root ganglia after sciatic nerve injury and offer insight into the regulatory transcription factor networks involved in cell death.
周围神经再生的分子机制:microRNA的新兴作用。
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