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转录因子TFAP2B表现出神经保护作用,针对缺血症/再输液损伤中的BNIP3介导的线粒

Yong Peng¹, Jiaoying Jia¹, Mingming Zhang¹

¹Department of Neurosurgery, The Second Xiangya Hospital of Central South University, No. 139 Renmin Middle Road, Changsha, Hunan, 410011, People's Republic of China.

Molecular neurobiology

|February 21, 2024

概括

转录因子TFAP2B通过激活线粒细胞衰变来保护神经元免受脑缺血-再输损伤 (CIRI). 这项研究确定了TFAP2B作为脑损伤的潜在治疗点.

科学领域:

神经科学是一个神经科学.
分子生物学分子生物学
生物化学生物化学

背景情况:

大脑缺血-反损伤 (CIRI) 会导致严重的脑损伤,包括,血脑屏障破坏和神经元亡.
在CIRI中N6-甲基氨酸 (m6A) RNA修饰的作用尚不清楚.
识别新的分子点对于开发有效的CIRI疗法至关重要.

研究的目的:

调查m6ARNA修饰的作用,并在CIRI中确定潜在的分子标.
在CIRI的背景下探索转录因子TFAP2B的功能.
阐明TFAP2B发挥其保护作用的潜在分子机制.

主要方法:

在老鼠中,中脑动脉封闭和再输 (MCAO/R).
进行MeRIP测序和RNA测序.
对测序数据的生物信息分析.
采用初级神经元的体外氧-葡萄糖剥夺/反 (OGD/R) 模型.
TFAP2B 过度表达和验证实验.
在体内MCAO/R模型.

主要成果:

在MCAO/R大鼠中,TFAP2B表达和m6A丰度都降低了.
神经元中的TFAP2B过度表达减少了OGD/R.R.期间的神经细胞亡和增强自的发生.
TFAP2B直接激活了线粒细胞受体BNIP3的转录.
TFAP2B增强了BNIP3介导的神经,保护神经元免受OGD/R损伤.
在体内,TFAP2B减轻了MCAO/R损伤.

结论:

在CIRI中,TFAP2B通过促进BNIP3介导的线粒起保护作用.
TFAP2B是一种潜在的治疗点,用于治疗缺血-再输血后的脑损伤.
需要进一步的研究来证实TFAP2B失调在CIRI中的m6A依赖.

关键词:

在BNIP3中,BNIP3是BNP3.大脑缺血再输血损伤通过MeRIP进行测序.线粒细胞衰变 - - 线粒细胞衰变 (mitophagy) 是一种主要神经元的主要神经元.通过RNA测序进行RNA测序.这是TFAP2B的第二部分.

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