定量蛋白质学和系统遗传学分析的结合揭示了PTN与睡眠丧失引起的认知障碍有关
Yutong Zhou1, Hui Li1, Xiaoya Liu1
1Shandong Technology Innovation Center of Molecular Targeting and Intelligent Diagnosis and Treatment, Binzhou Medical University, Yantai, Shandong 264003, China.
Journal of proteome research
|August 23, 2023
概括
睡眠不足会影响认知功能. 这项研究确定了类蛋白 (Ptn) 作为一个关键的调解物,揭示了涉及MAPK通路和神经元亡的新机制,为失眠相关的认知衰退提供了一个新的生物标志物.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 遗传学 是一个
- 分子生物学分子生物学
背景情况:
- 睡眠不足与认知功能障碍有关,但根本机制尚未完全理解.
- 确定特定的分子参与者和途径对于理解和治疗与睡眠相关的认知缺陷至关重要.
研究的目的:
- 阐明睡眠不足导致认知障碍的分子机制.
- 为了确定睡眠损失引起的认知功能障碍的新生物标志物.
主要方法:
- 建立了对甲氨酸 (PCPA) 诱导的失眠小鼠模型.
- 利用基于质谱的蛋白质组学来分析海马蛋白质表达.
- 在BXD小鼠小组中进行了全转录组协会选.
- 进行基因共同表达分析以确定信号通路.
主要成果:
- 在失眠小鼠的海马体中鉴定出164种明显改变的蛋白质.
- 类蛋白 (Ptn) 表达与认知功能有显著的关联.
- 发现Ptn通过MAPK信号通路调解睡眠丧失引起的认知障碍,涉及Fos和Nr4a1,导致神经元亡.
- Ptn在小鼠海马体中被遗传转调节,并与人类的神经退行性疾病有关.
结论:
- 聚氨酸 (Ptn) 是睡眠损失引起的认知障碍的关键调解者.
- Ptn-MAPK信号通路在与失眠相关的神经元亡中起着关键作用.
- 这项研究为失眠引起的认知障碍提供了一个新的生物标志物,并通过综合蛋白质学和系统遗传学为生物标志物发现提供了一个新的策略.
相关概念视频
Substance Use Disorders Affecting Sleep
196
Substance use disorders involve a pattern of using drugs more extensively than intended and continuing use despite harmful consequences. This includes legal substances like alcohol and nicotine, as well as illegal drugs. These disorders often involve both physical and psychological dependence, reflecting compulsive use of substances that significantly alter thoughts, feelings, and behaviors, contributing to a major public health issue.
Understanding the concepts of physical dependence,...
Understanding the concepts of physical dependence,...
196
Understanding Sleep
408
Sleep, an essential biological state, involves significant reductions in physical activity, sensory awareness, and interaction with the environment. This complex physiological process is primarily regulated by specific brain regions, notably the hypothalamus and pons, which govern the sleep-wake cycle or circadian rhythm.
The circadian rhythm, a nearly 24-hour cycle, is deeply influenced by environmental light cues. Light exposure directly affects the hypothalamus, which in turn regulates...
The circadian rhythm, a nearly 24-hour cycle, is deeply influenced by environmental light cues. Light exposure directly affects the hypothalamus, which in turn regulates...
408
Insufficient Sleep and Sleep Deprivation
171
Insufficient sleep refers to not getting the recommended amount of sleep for optimal functioning, even if it's just slightly less than needed. Sleep insufficiency may occur due to lifestyle choices, such as staying up late for social events or work, resulting in routinely getting less sleep than required. For example, consistently sleeping 6 hours when the body needs 7-9 hours can lead to cumulative effects on health and well-being.
Sleep deprivation is a more severe form of sleep loss...
Sleep deprivation is a more severe form of sleep loss...
171


