The μ-opioid receptor induces miR-21 expression and is ERK/PKCμ-dependent.

The μ-opioid receptor induces miR-21 expression and is ERK/PKCμ-dependent.
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DOI:
10.1016/j.jneuroim.2021.577585
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发表时间:
2021-07-15
影响因子:
3.3
通讯作者:
Rogers TJ
Rogers TJ
中科院分区:
医学4区
文献类型:
--
作者:
Chang JK;Cornwell WD;Rogers TJ

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据信微小RNA-21(miR-21)在先天免疫反应从炎症到消退的转变中发挥重要作用。诱导miR-21的生物化学基础仍然不确定。然而,μ-阿片受体(莫尔)的激活诱导miR-21的表达。我们的结果显示,用μ-阿片激动剂处理的人单核细胞表现出miR-21表达的显著增加。我们发现miR-21的MOR诱导需要Ras-Raf-MEK-ERK信号级联的激活,令我们惊讶的是,PKCμ(PKD 1)的激活。考虑到miR-21在疼痛敏感性中的作用,这些结果是显著的。通过μ-阿片受体诱导miR-21的机制涉及新的PKCμ依赖性信号转导途径。
Micro RNA-21 (miR-21) is believed to perform an important role in the transition from inflammation to resolution in the innate immune response. The biochemical basis for the induction of miR-21 remains uncertain. However, the activation of the μ-opioid receptor (MOR) induces the expression of miR-21. Our results show that human monocytes treated with μ-opioid agonists exhibit a significant increase in miR-21 expression. We found that MOR-induction of miR-21 requires the activation of the Ras-Raf-MEK-ERK signaling cascade, and to our surprise, the activation of PKCμ (PKD1). These results are significant given the role of miR-21 in the sensitivity to pain. The mechanism of induction of miR-21 through the μ-opioid receptor involves a novel PKCμ-dependent signal-transduction pathway.
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期刊: SCIENCE
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