中国神经再生研究(英文版) ›› 2022, Vol. 17 ›› Issue (5): 1156-1160.doi: 10.4103/1673-5374.324852

• 原著:神经损伤修复保护与再生 • 上一篇    

抗精神病药可维持急性氧化应激损伤细胞端粒长度

  

  • 出版日期:2022-05-15 发布日期:2021-11-22

Antipsychotics preserve telomere length in peripheral blood mononuclear cells after acute oxidative stress injury

Gabriel B. Polho1, Giancarlo M. Cardillo1, Daniel S. Kerr1, Thais Chile2, Wagner F. Gattaz1, Orestes V. Forlenza1, Helena P. Brentani2, Vanessa J. De-Paula1, 2, *#br#   

  1. 1Laboratório de Neurociências (LIM-27), Departamento e Instituto de Psiquiatria, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, SP, Brasil; 2Laboratório de Psicobiologia (LIM-23), Departamento e Instituto de Psiquiatria, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, SP, Brasil
  • Online:2022-05-15 Published:2021-11-22
  • Contact: Vanessa J. De-Paula, MSc, PhD, vanessaj@usp.br.
  • Supported by:
    This study was supported by grants from FAPESP (Fundação de Amparo à Pesquisa de São Paulo, Grant nº 2016/01302-9 and 2014/27129-6) and CAPES (Coordenação de Aperfeiçoamento de Pessoal de Nível Superior) 88887.463672/2019-00.

摘要:

精神分裂症患者用抗精神病药治疗可能会延长或保留端粒的大小,并影响线粒体功能,进而影响神经细胞代谢。为验证抗精神病药可延长氧化应激端粒长度的假说,用Ficoll-Histopaque提取健康志愿者外周血白细胞,将单个核重悬浮在细胞培养基中后,加入过氧化氢诱导氧化应激;培养4d后,用阿立哌唑、氟哌啶醇或氯氮平处理细胞7d。实时PCR检测显示,阿立哌唑和氟哌啶醇治疗可使外周血单个核细胞端粒长度分别增加23%和20%。结果表明,氟哌啶醇和阿立哌唑可能会减少氧化应激对包括神经干细胞在内的细胞端粒的损害。

https://orcid.org/0000-0002-2054-6356 (Vanessa J. De-Paula)

Abstract: Antipsychotics may prolong or retain telomere length, affect mitochondrial function, and then affect the metabolism of nerve cells. To validate the hypothesis that antipsychotics can prolong telomere length after oxidative stress injury, leukocytes from healthy volunteers were extracted using Ficoll-Histopaque density gradient. The mononuclear cells layer was resuspended in cell culture medium. Oxidative stress was induced with hydrogen peroxide in cultured leukocytes. Four days later, leukocytes were treated with aripiprazole, haloperidol or clozapine for 7 days. Real-time PCR revealed that treatments with aripiprazole and haloperidol increased the telomere length by 23% and 20% in peripheral blood mononuclear cells after acute oxidative stress injury. These results suggest that haloperidol and aripiprazole can reduce the damage to telomeres induced by oxidative stress. The experiment procedure was approved by the Ethics Committee of Faculty of Medicine of the University of São Paulo (FMUSP/CAAE approval No. 52622616.8.0000.0065).

Key words: antipsychotic, aripiprazole, cell culture, clozapine, haloperidol, oxidative stress, peripheral blood mononuclear cell, telomere length

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