在压力敏感性和抑郁症中循环的骨髓衍生MMP8
Flurin Cathomas1,2, Hsiao-Yun Lin3,4, Kenny L Chan3,4
1Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, USA. Flurin.Cathomas@mssm.edu.
Nature
|February 7, 2024
概括
在MDD患者和小鼠中,心理压力会增加矩阵金属蛋白酶8 (MMP8). 这种免疫因素会影响大脑功能和社会行为,
科学领域:
- 神经科学
- 免疫学
- 精神病学
背景情况:
- 心理压力会影响免疫系统和大脑.
- 关联周围免疫变化的机制与MDD等压力障碍尚不清楚.
研究的目的:
- 研究循环骨髓细胞特异蛋白酶MMP8在与压力相关的疾病中的作用.
- 阐明外周免疫因子在压力下影响中枢神经系统功能和行为的机制.
主要方法:
- 在患有MDD的人和易受压力的小鼠中测量MMP8血清水平.
- 使用质量细胞测量和单细胞RNA测序进行免疫细胞表型化.
- 在慢性社会失败压力 (CSDS) 后评估小鼠的神经生理和行为变化.
主要成果:
- 在MDD患者和CSDS小鼠中,MMP8表达升高.
- 增加的MMP8会改变小鼠的细胞外空间和神经生理学.
- 减少MMP8可以扭转压力引起的行为和神经生理变化.
结论:
- 周围的MMP8透到大脑,影响NAc的结构和功能.
- 这为影响中枢神经系统和压力下的行为建立了外围免疫的途径.
- 对于与压力相关的神经精神疾病来说,MMP8是一个潜在的治疗标.
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