小柯机器人

神经免疫心血管界面控制动脉粥样硬化
2022-04-30 10:12

德国慕尼黑大学Andreas J. R. Habenicht、Sarajo K. Mohanta等研究人员合作发现,神经免疫心血管界面控制动脉粥样硬化。该研究于2022年4月27日在线发表于国际一流学术期刊《自然》。

由于外周神经系统将外膜作为其到达远处目标的主要通道,研究人员推测外周神经系统可能直接与患病的动脉相互作用。出乎意料的是,广泛的神经免疫心血管界面(NICI)出现在小鼠和人类动脉粥样硬化病变的外膜段,显示出扩大的轴突网络,包括免疫细胞和介质平滑肌细胞附近轴突末端的生长锥。小鼠NICI建立了一个结构性的动脉-脑回路(ABC)。腹腔内动脉痛觉传入通过脊髓T6-T13背根神经节进入中枢神经系统,并被追踪到更高的脑区,包括腹股沟旁和中央杏仁核神经元;交感传出神经元从髓质和下丘脑神经元通过脊髓中外侧神经元,和腹腔和交感链神经节投射到腹腔内。
 
此外,ABC外周神经系统成分被激活:脾脏交感神经和腹腔迷走神经的活动与疾病进展同步增加,而腹腔神经节切除术则导致了腹腔内NICI的瓦解,减少了疾病进展并增强了斑块稳定性。因此,外周神经系统使用NICI来组装一个结构性ABC,而对ABC的治疗干预可以减弱动脉粥样硬化。
 
据了解,动脉粥样硬化斑块在动脉内膜层中发展,可导致心脏病发作和中风。由于斑块缺乏神经支配,神经元控制对动脉粥样硬化的影响仍不清楚。然而,免疫系统对斑块的反应是在动脉的外部结缔组织外套(外膜)形成白细胞浸润。
 
附:英文原文
 
Title: Neuroimmune cardiovascular interfaces control atherosclerosis

Author: Mohanta, Sarajo K., Peng, Li, Li, Yuanfang, Lu, Shu, Sun, Ting, Carnevale, Lorenzo, Perrotta, Marialuisa, Ma, Zhe, Frstera, Benjamin, Stanic, Karen, Zhang, Chuankai, Zhang, Xi, Szczepaniak, Piotr, Bianchini, Mariaelvy, Saeed, Borhan R., Carnevale, Raimondo, Hu, Desheng, Nosalski, Ryszard, Pallante, Fabio, Beer, Michael, Santovito, Donato, Ertrk, Ali, Mettenleiter, Thomas C., Klupp, Barbara G., Megens, Remco T. A., Steffens, Sabine, Pelisek, Jaroslav, Eckstein, Hans-Henning, Kleemann, Robert, Habenicht, Livia, Mallat, Ziad, Michel, Jean-Baptiste, Bernhagen, Jrgen, Dichgans, Martin, DAgostino, Giuseppe, Guzik, Tomasz J., Olofsson, Peder S., Yin, Changjun, Weber, Christian, Lembo, Giuseppe, Carnevale, Daniela, Habenicht, Andreas J. R.

Issue&Volume: 2022-04-27

Abstract: Atherosclerotic plaques develop in the inner intimal layer of arteries and can cause heart attacks and strokes1. As plaques lack innervation, the effects of neuronal control on atherosclerosis remain unclear. However, the immune system responds to plaques by forming leukocyte infiltrates in the outer connective tissue coat of arteries (the adventitia)2,3,4,5,6. Here, because the peripheral nervous system uses the adventitia as its principal conduit to reach distant targets7,8,9, we postulated that the peripheral nervous system may directly interact with diseased arteries. Unexpectedly, widespread neuroimmune cardiovascular interfaces (NICIs) arose in mouse and human atherosclerosis-diseased adventitia segments showed expanded axon networks, including growth cones at axon endings near immune cells and media smooth muscle cells. Mouse NICIs established a structural artery–brain circuit (ABC): abdominal adventitia nociceptive afferents10,11,12,13,14 entered the central nervous system through spinal cord T6–T13 dorsal root ganglia and were traced to higher brain regions, including the parabrachial and central amygdala neurons; and sympathetic efferent neurons projected from medullary and hypothalamic neurons to the adventitia through spinal intermediolateral neurons and both coeliac and sympathetic chain ganglia. Moreover, ABC peripheral nervous system components were activated: splenic sympathetic and coeliac vagus nerve activities increased in parallel to disease progression, whereas coeliac ganglionectomy led to the disintegration of adventitial NICIs, reduced disease progression and enhanced plaque stability. Thus, the peripheral nervous system uses NICIs to assemble a structural ABC, and therapeutic intervention in the ABC attenuates atherosclerosis.

DOI: 10.1038/s41586-022-04673-6

Source: https://www.nature.com/articles/s41586-022-04673-6

 

Nature:《自然》,创刊于1869年。隶属于施普林格·自然出版集团,最新IF:69.504
官方网址:http://www.nature.com/
投稿链接:http://www.nature.com/authors/submit_manuscript.html


本期文章:《自然》:Online/在线发表

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