心理压力因素对自然杀手细胞功能的影响:基于压力因素的类型,持续时间,强度和物种的综合分析
Alexis R Katz1, Margaret P Huntwork2, Jay K Kolls3
1Department of Medicine, Tulane University School of Medicine, New Orleans, LA 70112, USA; Departments of Medicine and Pediatrics, Center for Translational Research in Infection and Inflammation, Tulane University School of Medicine, New Orleans, LA 70112, USA.
Physiology & behavior
|November 15, 2024
概括
心理压力会影响自然杀手 (NK) 细胞的活动,增加感染和癌症的风险. 这种功能障碍是持久的,特别是在生命早期或长期压力后,恢复选择有限.
科学领域:
- 免疫学 免疫学 免疫学
- 心理神经免疫学 心理神经免疫学
- 压力研究 压力研究
背景情况:
- 自然杀手 (NK) 细胞对于对抗病毒和癌症的免疫监测至关重要.
- NK细胞缺乏或功能障碍增加了对感染,癌症和巨细胞激活综合征的易感性.
- 心理压力越来越被认为是免疫功能的重要调节器.
研究的目的:
- 审查现有的关于心理压力对NK细胞功能障碍影响的研究.
- 确定影响压力诱导NK细胞变化的关键因素,包括压力源类型,持续时间和暴露年龄.
- 探索NK细胞功能障碍背后的机制和应激反应中的特定物种差异.
主要方法:
- 对调查心理压力和NK细胞活性 (NKCA) 的研究进行系统审查.
- 分析数据,重点关注压力特征,物种,年龄,性别和NKCA测量方法 (细胞分解试验).
- 检查 NK 细胞损伤的拟议分子和细胞机制.
主要成果:
- 心理压力因素在不同物种中始终降低NKCA,长时间的压力会导致更严重和不可逆转的缺陷.
- 生命早期和慢性压力显著增加感染和癌症的风险,由于NK细胞功能受损.
- 存在基于性别的差异,女性在压力下表现出更明显的免疫抑制NK细胞表型.
- 小鼠模型对于研究与压力相关的NK细胞功能障碍是不理想的,因为与人类和其他动物相比,NK细胞的反应不同.
结论:
- 心理压力严重损害NK细胞数量和功能,导致对感染和恶性瘤的脆弱性增加.
- 压力对NK细胞的影响往往是持久的,康复策略的有效性有限.
- 潜在的机制包括 lysosome 释放受损,突触形成,受体表达变化和信号通路失调.
- 进一步的研究对于阐明这些机制和开发应激诱导的免疫失调干预措施至关重要.
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