Repeated activation of C1 neurons in medulla oblongata decreases anti-inflammatory effect via the hypofunction of the adrenal gland adrenergic response

Repeated activation of C1 neurons in medulla oblongata decreases anti-inflammatory effect via the hypofunction of the adrenal gland adrenergic response
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延髓中 C1 神经元的重复激活通过肾上腺肾上腺素能反应功能减退降低抗炎作用

DOI:
10.1016/j.bbi.2023.04.003
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发表时间:
2023
期刊:
Brain, Behavior, and Immunity
影响因子:
--
通讯作者:
Morita Hironobu
Morita Hironobu
中科院分区:
--
文献类型:
--
作者:
Abe Chikara;Katayama Chikako;Bazek Murat;Nakamura Yasuna;Ohbayashi Kento;Horii Kazuhiro;Fujimoto Chisato;Tanida Mamoru;Iwasaki Yusaku;Inoue Tsuyoshi;Nin Fumiaki;Morita Hironobu

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已知免疫系统由自主神经系统控制,包括交感神经和副交感神经(迷走神经)。延髓中的C1神经元参与自主神经系统的控制,是对应激源的反应并调节免疫系统。C1神经元的短期激活抑制炎症,而这些神经元的长期激活对炎症反射的影响尚不清楚。在此,我们证明脾交感神经和肾上腺肾上腺素能反应的共同激活对于急性肺损伤的预后是不可或缺的。C1神经元的化学发生激活增加血浆儿茶酚胺,包括肾上腺素和去甲肾上腺素水平。当C1神经元被化学遗传学或光遗传学工具刺激时,在肾上腺中使用局部注射病毒载体来删除儿茶酚胺能细胞消除了对急性肺损伤的保护作用。此外,重复激活C1神经元化学发生工具抑制肾上腺反应,而不影响血浆去甲肾上腺素水平,消除对急性肺损伤的保护作用。这是由异丙肾上腺素管理挽救。我们的结论是,通过肾上腺C1神经元的肾上腺素能反应的维护是一个有效的抗炎反应的交付的先决条件。
The immune system is known to be controlled by the autonomic nervous system including sympathetic and parasympathetic (vagus) nerves. C1 neurons in the medulla oblongata, which participate in the control of the autonomic nervous system, are responders to stressors and regulate the immune system. Short-term activation of C1 neurons suppresses inflammation, while the effect of a long-term activation of these neurons on the inflammatory reflex is unclear. We, herein, demonstrate that the coactivation of both the splenic sympathetic nerves and the adrenal gland adrenergic response are indispensable for the prognosis of acute lung injury. The chemogenetic activation of C1 neurons increased plasma catecholamine including adrenaline and noradrenaline levels. The deletion of catecholaminergic cells using local injections of viral vector in the adrenal gland abolished the protective effect against acute lung injury when the C1 neurons were stimulated by either chemogenetic or optogenetic tools. Furthermore, repeated activation of C1 neurons using chemogenetic tool inhibited the adrenal response without affecting the plasma noradrenaline levels, eliminated the protective effect against acute lung injury. This was rescued by the isoprenaline administration. We concluded that the maintenance of an adrenergic response via C1 neurons in the adrenal gland is a prerequisite for the delivery of an effective anti-inflammatory response.
DOI: 10.1113/jphysiol.1967.sp008332
发表时间: 1967-01-01
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