中国神经再生研究(英文版) ›› 2023, Vol. 18 ›› Issue (10): 2206-2207.doi: 10.4103/1673-5374.368301

• 观点:退行性病与再生 • 上一篇    下一篇

亨廷顿病中的肾素-血管紧张素系统:来自动物模型和人类患者的证据

  

  • 出版日期:2023-10-15 发布日期:2023-03-28

Renin-angiotensin system in the central nervous system: focus on Huntington’s disease

Aline Silva de Miranda*, Antonio Lucio Teixeira*#br#   

  1. Laboratório de Neurobiologia, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG, Brasil (de Miranda AS)
    Laboratório Interdisciplinar de Investigação Médica (LIIM), Faculdade de Medicina, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG, Brasil (de Miranda AS)
    Neuropsychiatry Program, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, University of Texas Health Science Center at Houston, TX, USA (Teixeira AL) 
    Faculdade Santa Casa BH, Belo Horizonte, MG, Brasil (Teixeira AL) 
  • Online:2023-10-15 Published:2023-03-28
  • Contact: Aline Silva de Miranda, PhD, mirandas.aline@gmail.com; Antonio Lucio Teixeira, MD, PhD, antonio.L.Teixeira@uth.tmc.edu.
  • Supported by:
    ASM and ALT have received financial support from the Brazilian government funding agencies: FAPEMIG (Fundação de Amparo à Pesquisa do Estado de Minas Gerais, Brazil), CNPq (Conselho Nacional de Desenvolvimento Científico e Tecnológico, Brazil) and CAPES (Coordenação de Aperfeiçoamento de Pessoal de Nível Superior). ALT received financial support from UTHealth Department of Psychiatry and Behavioral Sciences, NIH/NIA, TARCC. ASM and ALT are CNPq fellowship recipients.

摘要:

https://orcid.org/0000-0003-2811-7924 (Aline Silva de Miranda)

https://orcid.org/0000-0002-9621-5422 (Antonio Lucio Teixeira)


Abstract: The renin-angiotensin system (RAS) was originally conceived as a circulating hormonal system involved in the regulation of cardiovascular and renal homeostasis. With the discovery of local RAS components in diverse organs, including the brain, and related biologically active peptides, enzymes, and receptors, the understanding of the physiological and pathophysiological roles of RAS has changed significantly. Accordingly, RAS has been conceptualized as a system composed of two major axes: a “classical” one formed by the angiotensin-converting enzyme (ACE), angiotensin II (Ang II), and angiotensin type 1 (AT1) receptor (ACE/Ang II/AT1), and a ‘counter-regulatory’ one composed by the ACE2, Ang-(1-7), Mas receptor (ACE2/Ang-(1-7)/Mas). The classical arm promotes vasoconstriction, pro-inflammatory, pro-thrombotic, and pro-fibrotic effects mainly through the activation of AT1 receptors. Ang II can also bind to AT type 2 receptor but with much less affinity and with distinct effects of AT1. The counter-regulatory axis ACE2/Ang-(1-7)/Mas often opposes the actions of the classical arm, promoting anti-inflammatory, anti-oxidant, anti-apoptotic, and anti-fibrotic effects (Miranda et al., 2022).