lncRNAADEPTR功能丧失引起性别特异的行为和脊柱缺陷
Kaushik Chanda1, Jackson P Carter1, Hirofumi Nishizono2,3
1Department of Neuroscience, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology, Jupiter, FL 33458, USA.
iScience
|July 31, 2025
概括
这项研究表明,长非编码RNAADEPTR对突触结构至关重要,并以性别特异的方式影响与焦虑相关的行为,补偿基因表达保留认知功能.
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
- 遗传学 遗传学 是一个
背景情况:
- 活动依赖的神经元可塑性是学习和记忆的基础.
- 长非编码RNAs (lncRNAs) 在这些过程中的作用是一个新兴的研究领域.
研究的目的:
- 调查ADEPTR的功能,在树突中局部化并由cAMP调节的lncRNA,在突触形态和行为中.
- 检查ADEPTR对神经元架构和认知功能的性别特异性影响.
主要方法:
- 利用两种小鼠模型:ADEPTR删除 (L-ADEPTR) 和一种缺乏其蛋白相互作用域 (S-ADEPTR) 的变异.
- 进行行为测试,分析神经元培养,并在发育阶段检查大脑组织.
- 评估了像BDNF和cFOS这样的可塑性标记物的基因表达.
主要成果:
- 成年雄性S-ADEPTR小鼠在没有认知缺陷的情况下表现出减少焦虑.
- 两性都表现出神经元结构的形态障碍.
- 雌性L-ADEPTR小鼠在海马CA1区域的P42.2.中的细棘较少.
- 增加BDNF和cFOS的表达表明了补偿机制.
结论:
- 在调节神经元结构和与焦虑相关的行为方面,ADEPTR起着特定于性别的作用.
- 尽管存在结构性缺陷,但通过补偿性基因表达,认知功能似乎得到了保护.
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