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Activation of Mitogen-Activated Protein Kinase in Descending Pain Modulatory System

机译:减痛调节系统中丝裂原活化蛋白激酶的活化

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摘要

The descending pain modulatory system is thought to undergo plastic changes following peripheral tissue injury and exerts bidirectional (facilitatory and inhibitory) influence on spinal nociceptive transmission. The mitogen-activated protein kinases (MAPKs) superfamily consists of four main members: the extracellular signal-regulated protein kinase1/2 (ERK1/2), the c-Jun N-terminal kinases (JNKs), the p38 MAPKs, and the ERK5. MAPKs not only regulate cell proliferation and survival but also play important roles in synaptic plasticity and memory formation. Recently, many studies have demonstrated that noxious stimuli activate MAPKs in several brain regions that are components of descending pain modulatory system. They are involved in pain perception and pain-related emotional responses. In addition, psychophysical stress also activates MAPKs in these brain structures. Greater appreciation of the convergence of mechanisms between noxious stimuli- and psychological stress-induced neuroplasticity is likely to lead to the identification of novel targets for a variety of pain syndromes.
机译:人们认为,下行疼痛调节系统在周围组织损伤后会发生塑性变化,并对脊柱伤害感受传递产生双向(促进和抑制)影响。丝裂原活化蛋白激酶(MAPK)超家族由四个主要成员组成:细胞外信号调节蛋白激酶1/2(ERK1 / 2),c-Jun N端激酶(JNKs),p38 MAPK和ERK5 。 MAPK不仅调节细胞增殖和存活,而且在突触可塑性和记忆形成中起重要作用。最近,许多研究表明,有害刺激会激活作为疼痛调节系统下降成分的几个大脑区域中的MAPK。他们参与疼痛感知和与疼痛相关的情绪反应。此外,心理生理压力还可以激活这些大脑结构中的MAPK。对有害刺激和心理应激诱导的神经可塑性之间的机制趋同的更多了解可能会导致确定各种疼痛综合征的新靶标。

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