Gene Expression Profiling of Cutaneous Injured and Non-Injured Nociceptors in SNI Animal Model of Neuropathic Pain.

Gene Expression Profiling of Cutaneous Injured and Non-Injured Nociceptors in SNI Animal Model of Neuropathic Pain.
复制标题

神经性疼痛的SNI动物模型中皮肤损伤和未受伤的伤害感受器的基因表达分析。

DOI:
10.1038/s41598-017-08865-3
复制
发表时间:
2017-08-24
期刊:
影响因子:
4.6
通讯作者:
Decosterd I
Decosterd I
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Berta T;Perrin FE;Pertin M;Tonello R;Liu YC;Chamessian A;Kato AC;Ji RR;Decosterd I

文献摘要

参考文献

被引文献

相似文献

伤害感受器是背根神经节(DRG)神经元的一种特殊亚型,其检测伤害性刺激并引起疼痛。虽然最近的努力已经揭示了正常条件下的伤害感受器的分子概况,很少有人知道这个概况如何在病理条件下的变化。在这项研究中,我们利用激光捕获显微切割专门收集个别受伤和未受伤的伤害性DRG神经元,并确定其基因表达在大鼠备用神经损伤(SNI)模型的神经病理性疼痛。我们发现SNI后7天未损伤神经元的转录变化最小。与此相反,几个新的成绩单被改变受伤的伤害感受器,这些LCM捕获的神经元的全球签名显着不同的基因表达模式,发现以前使用整个DRG组织后SNI。损伤的伤害感受器的转录组学特征的通路分析揭示了氧化应激作为一个关键的生物学过程。我们验证了caspase-6(CASP 6)在小尺寸DRG神经元中的增加及其在SNI和紫杉醇诱导的神经病理性疼痛中的功能作用。我们的研究结果表明,在特定的DRG神经元群体(例如,伤害感受器)是揭示不同起源的神经病理性疼痛的新机制和治疗靶点的有效策略。
Nociceptors are a particular subtype of dorsal root ganglion (DRG) neurons that detect noxious stimuli and elicit pain. Although recent efforts have been made to reveal the molecular profile of nociceptors in normal conditions, little is known about how this profile changes in pathological conditions. In this study we exploited laser capture microdissection to specifically collect individual injured and non-injured nociceptive DRG neurons and to define their gene profiling in rat spared nerve injury (SNI) model of neuropathic pain. We found minimal transcriptional changes in non-injured neurons at 7 days after SNI. In contrast, several novel transcripts were altered in injured nociceptors, and the global signature of these LCM-captured neurons differed markedly from that the gene expression patterns found previously using whole DRG tissue following SNI. Pathway analysis of the transcriptomic profile of the injured nociceptors revealed oxidative stress as a key biological process. We validated the increase of caspase-6 (CASP6) in small-sized DRG neurons and its functional role in SNI- and paclitaxel-induced neuropathic pain. Our results demonstrate that the identification of gene regulation in a specific population of DRG neurons (e.g., nociceptors) is an effective strategy to reveal new mechanisms and therapeutic targets for neuropathic pain from different origins.
DOI: 10.1038/nrneurol.2014.77
发表时间: 2014-06
期刊: Nature reviews. Neurology
影响因子: --
作者:
Bennett GJ;Doyle T;Salvemini D
通讯作者: Salvemini D
DOI: 10.1016/s0891-5849(01)00597-4
发表时间: 2001-08-15
影响因子: 7.4
作者:
Khalil, Z;Khodr, B
通讯作者: Khodr, B
DOI: 10.1016/j.jneumeth.2010.08.025
发表时间: 2010-10-30
影响因子: 3
作者:
Grace, Peter M.;Hutchinson, Mark R.;Rolan, Paul E.
通讯作者: Rolan, Paul E.
DOI: 10.1146/annurev.neuro.051508.135531
发表时间: 2009
影响因子: 13.9
作者:
Costigan M;Scholz J;Woolf CJ
通讯作者: Woolf CJ
DOI: 10.1111/j.1460-9568.2004.03652.x
发表时间: 2004-10-01
影响因子: 3.4
作者:
Hu, J;Mata, M;Fink, DJ
通讯作者: Fink, DJ