需要Tex15用于鼻感觉神经元多样性和男性激素检测
Nader Boutros Ghali1, Paige Kramer1, Ryan Edwards1
1Department of Molecular Biology and Biochemistry, Rutgers University, Piscataway, NJ, 08904, USA.
bioRxiv : the preprint server for biology
|December 19, 2025
概括
试管体表达的15 (Tex15) 基因调节小鼠的吐口鼻受体表达. 它的缺失破坏了激素检测,通过减少受体多样性,影响了诸如攻击性之类的社会行为.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 是一个遗传学.
- 分子生物学分子生物学
背景情况:
- 小鼠的口腔鼻腔器官 (VNO) 检测出对于社会行为至关重要的激素.
- 吐口鼻传感神经元 (VSN) 表达G蛋白合受体 (GPCRs),特别是V1Rs和V2Rs,以感知这些费洛蒙.
- 控制V1R和V2R在VSN中的表达的监管机制在很大程度上是未知的.
研究的目的:
- 调查丸表达基因15 (Tex15) 在调节VSNs中鼻受体 (VR) 表达中的作用.
- 为了确定Tex15缺乏对激素感应和相关行为的影响.
主要方法:
- 利用了缺乏Tex15基因的淘汰赛小鼠模型.
- 使用分子技术分析了VSN中的VR表达模式.
- 在接触男性气味剂时,在辅助嗅觉球 (AOB) 中评估神经元激活.
- 在Tex15淘汰赛小鼠中观察到男性男性的侵略行为.
主要成果:
- VSN前体暂时表达Tex15,这通常会抑制可转移的元素.
- 缺少Tex15导致对V1Rs和V2Rs (A,B,D家族) 的VR选择失调.
- 德克斯15缺陷导致VR曲目变少多样化,并减少了与侵略相关的受体的表达.
- 德克斯15淘汰赛小鼠显示AOB激活率降低,男性男性侵略性受损.
结论:
- Tex15对于确保VSN表达VRs的多样化曲目至关重要.
- 德克斯15在激素感知和调节VSN介导的社会行为方面发挥着至关重要的作用.
相关概念视频
Physiology of Smell and Olfactory Pathway
12.1K
Humans detect odors with the help of specialized cells located in the upper part of the nasal cavity, called olfactory receptor neurons (ORNs). ORNs possess hair-like structures called cilia, which are receptive to sensations from the inhaled air. When an odorant molecule binds to a specific receptor on the cell of the cilia, it leads to a series of events that ultimately cause the ORN to send electrical signals to the olfactory bulb in the brain through the olfactory nerves.
The olfactory...
The olfactory...
12.1K
Olfactory Receptors: Location and Structure
11.1K
The process of olfaction, also known as the sense of smell, is a sophisticated chemical response system. The specialized sensory neurons that facilitate this process, known as olfactory receptor neurons, are situated in an upper segment of the nasal cavity, known as the olfactory epithelium. Olfactory sensory neurons are bipolar, with their dendrites extending from the epithelium's apex into the mucus that lines the nasal cavity. Airborne molecules, when inhaled, traverse the olfactory...
11.1K
Olfaction
48.0K
The sense of smell is achieved through the activities of the olfactory system. It starts when an airborne odorant enters the nasal cavity and reaches olfactory epithelium (OE). The OE is protected by a thin layer of mucus, which also serves the purpose of dissolving more complex compounds into simpler chemical odorants. The size of the OE and the density of sensory neurons varies among species; in humans, the OE is only about 9-10 cm2.
The olfactory receptors are embedded in the cilia of the...
The olfactory receptors are embedded in the cilia of the...
48.0K


