从细胞外囊中衍生出来的LPS预先调节的嗅觉覆盖细胞通过mir-1224/CD44/SLC7A11轴在脊髓损伤后调节微质极化
Luxuan Wang1,2,3,4, Chunhui Li1,5, Xiaosong Shan1,5
1Clinical Medicine College, Hebei University, Baoding, Hebei, China.
概括
在脊髓损伤模型中, lipopolysaccharide预先条件的嗅觉吸收细胞 (L-EVs) 的外体减少神经炎症. 通过mir-1224/CD44/SLC7A11通路,L-EVs调节微质极化,提供了一个有前途的治疗方法.
科学领域:
- 神经科学是一个神经科学.
- 细胞生物学 细胞生物学
- 再生医学是一种再生医学.
背景情况:
- 嗅觉凝固细胞 (OECs) 在脊髓损伤 (SCI) 治疗方面表现有前途.
- 来自OEC的外体在SCI中表现出神经保护作用.
- 研究OEC外体的增强抗炎特性至关重要.
研究的目的:
- 为了确定LPS预先条件的OEC (L-EVs) 的外体是否比正常的OEC外体 (N-EVs) 具有更好的抗炎作用.
- 阐明L-EVs在SCI中的抗炎作用的潜在机制.
- 探索L-EVs在调节微质极化中的作用.
主要方法:
- 使用电子显微镜,纳米粒子追踪分析和西布的N-EV和L-EV的表征.
- 对L-EV及其对微质细胞的影响进行了代谢学和miRNA微阵列分析.
- 在体外增益和损失函数实验中验证分子路径.
主要成果:
- L-EVs有效调节了从M1到M2表型的微质极化.
- L-EVs改变了氨基酸代谢,并降低了微质中的SLC7A11表达.
- L-EVs显示了mir-1224的更高表达,这促进了CD44的降解,并减少了SLC7A11,调节了微质极化.
结论:
- 来自LPS预先条件的OEC的细胞外囊泡为SCI提供了潜在的治疗策略.
- 通过mir-1224/CD44/SLC7A11轴调节微质极化,L-EVs可以缓解神经炎症.
相关概念视频
01:26Spinal Cord
1.9K
The spinal cord, a critical component of the central nervous system, extends from the base of the brainstem to the lumbar region of the vertebral column. It is essential for maintaining physical stability and facilitating communication between the brain and peripheral parts of the body.
1.9K
01:54The Spinal Cord
31.9K
The spinal cord is the body’s major nerve tract of the central nervous system, communicating afferent sensory information from the periphery to the brain and efferent motor information from the brain to the body. The human spinal cord extends from the hole at the base of the skull, or foramen magnum, to the level of the first or second lumbar vertebra.
31.9K
02:41Chromatin Structure Regulates pre-mRNA Processing
8.2K
In eukaryotic cells, nascent mRNA transcripts need to undergo many post-transcriptional modifications to reach the cell cytoplasm and translate into functional proteins. For a long time, transcription and pre-mRNA processing were considered two independent events that occur sequentially in the cell. However, it has now been well established that transcription and pre-mRNA processing are two simultaneous processes that are precisely regulated inside the cell.
The chromatin structure, especially...
The chromatin structure, especially...
8.2K
01:10Spinal Cord: Information Processing
3.6K
The spinal cord is an integral hub for motor and sensory information that enables the brain to communicate with the peripheral nervous system (PNS). This communication consists of relaying sensory data and transmission of motor commands.
Sensory Information Processing
Sensory information processing begins at the sensory receptors located in the skin and other tissues, which detect somatic sensory stimuli such as touch, temperature, or pain. These receptors function as catalysts, initiating...
Sensory Information Processing
Sensory information processing begins at the sensory receptors located in the skin and other tissues, which detect somatic sensory stimuli such as touch, temperature, or pain. These receptors function as catalysts, initiating...
3.6K
01:15Spinal Cord: Gross Anatomy
5.8K
The spinal cord resides within the protective confines of the vertebral column. It is the main pathway for information traveling between the brain and the body. It plays a fundamental role in nearly all bodily functions, from simple reflexes to complex motor movements. The spinal cord begins at the medulla oblongata at the base of the brainstem and extends downward, terminating at the conus medullaris near the first and second lumbar vertebrae. The spinal cord's length in adults is...
5.8K
01:01Group Polarization
39.2K
Group polarization is the strengthening of an original group attitude following the discussion of views within a group (Teger & Pruitt, 1967). That is, if a group initially favors a viewpoint, after discussion the group consensus is likely a stronger endorsement of the viewpoint. Conversely, if the group was initially opposed to a viewpoint, group discussion would likely lead to stronger opposition.
39.2K