通过控制乳酸平衡,PKM2是调节神经发生和认知的关键因素
Pengyan He1, Bingjun Zhang1, Wei Jiang1
1Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, 600 Tianhe Road, Guangzhou 510630, Guangdong Province, China.
Stem cell reports
|December 20, 2024
概括
酸盐激酶M2 (PKM2) 对于成人海马神经发生 (AHN) 和认知功能至关重要. 补充L-乳酸盐可以通过单碳酸盐转运体2 (MCT2) 恢复PKM2缺乏的小鼠的神经发生.
科学领域:
- 神经科学是一个神经科学.
- 代谢过程中的代谢.
- 细胞生物学 细胞生物学
背景情况:
- 成年海马神经发生 (AHN) 对认知功能至关重要.
- 代谢过程显著影响AHN.
- 酸盐激酶M2 (PKM2),一个关键的糖解酶,在AHN中没有明确的作用.
研究的目的:
- 研究PKM2在AHN和认知功能中的作用.
- 阐明PKM2对神经生成的影响的潜在机制.
主要方法:
- 利用淘汰和淘汰策略在体内研究PKM2功能.
- 在小鼠模型中测量L-乳酸盐水平并评估AHN和认知表现.
- 研究了单碳酸盐运输体2 (MCT2) 在调解L-乳酸盐效应中的作用.
主要成果:
- PKM2 缺乏导致AHN 减少和认知功能受损.
- 关闭PKM2的小鼠表现出较低的L-乳酸盐水平.
- 补充L-乳酸盐恢复了PKM2淘汰赛小鼠的AHN和认知功能,这些小鼠依赖MCT2.
结论:
- PKM2对于维持成人海马神经发生是必不可少的.
- 乳酸L在PKM2介导的神经发生过程中起着至关重要的作用.
- 准PKM2-乳酸盐-MCT2通路可能为认知障碍提供治疗策略.
相关概念视频
01:03Long-term Depression
2.5K
Long-term depression, or LTD, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTD is the process of synaptic weakening that occurs over time between pre and postsynaptic neuronal connections. The synaptic weakening of LTD works in opposition to synaptic strengthening by long-term potentiation (LTP) and together are the main mechanisms that underlie learning and memory.
Calcium Ion Concentration Mechanism
If over...
Calcium Ion Concentration Mechanism
If over...
2.5K
01:35Long-term Potentiation
54.8K
Long-term potentiation, or LTP, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTP is the process of synaptic strengthening that occurs over time between pre- and postsynaptic neuronal connections. The synaptic strengthening of LTP works in opposition to the synaptic weakening of long-term depression (LTD) and together are the main mechanisms that underlie learning and memory.
54.8K