高海拔环境对椎间盘退化和核脉核的转录组概况的影响
Jiawei Fu1, Rong Tang1, Tianfei Ran1
1Department of Orthopedics, Xinqiao Hospital, Army Medical University, Chongqing, China.
Frontiers in cell and developmental biology
|December 29, 2025
概括
高海拔环境加速大鼠的椎间盘退化 (IDD),与细胞衰老和细胞循环停止有关. 这项研究确定了SFN作为减轻高海拔诱导IDD的潜在分子标.
科学领域:
- 生物医学科学 生物医学科学
- 环境健康 环境健康
- 衰老研究研究 衰老研究
背景情况:
- 腰部疼痛 (LBP) 是老年人残疾的一个重要原因,椎间盘退化 (IDD) 是主要的贡献者.
- 衰老加剧IDD,在高海拔地区观察到腰椎间椎间盘突起的发生率更高.
- 高海拔环境对IDD及其机制的具体影响仍然在很大程度上是未知的.
研究的目的:
- 研究模拟高海拔条件对大鼠椎间盘衰老和退化的影响.
- 通过转录组分析,在不同高度识别与IDD相关的差异表达基因.
- 阐明了高海拔诱导的IDD背后的分子机制.
主要方法:
- 不同年龄的老鼠被暴露在模拟的高海拔环境中 (低压,缺氧).
- 椎间盘组织分析了与年龄和高度相关的变化.
- 进行了转录组测序,随后进行了基因本体学 (GO) 和基因和基因组的京都百科全书 (KEGG) 途径分析.
主要成果:
- 基因本体学和KEGG分析表明,细胞衰老和相关的生物过程对高海拔诱导的IDD至关重要.
- 转录组测序揭示了细胞循环停止是光盘衰老和退化在高海拔条件下的关键因素.
- 叠加分析在高海拔环境中发现了SFN (斯特拉提芬) 的改变表达,这表明了它的潜在作用.
结论:
- 高海拔环境显著影响椎间盘退化.
- 细胞衰老和细胞循环停止被确定为高海拔诱导的IDD中的关键分子事件.
- 该研究提供了对潜在的分子点的见解,例如SFN,用于解决高海拔居民的磁盘退化问题.
相关概念视频
01:29Herniated Intervertebral Disc l: Introduction
Intervertebral disc herniation refers to the displacement of the nucleus pulposus (the gel-like inner core of the disc) through a tear or weakened area in the annulus fibrosus (the outer fibrous ring). The displaced disc material extends beyond the normal boundaries of the disc space and may compress or irritate nearby spinal nerve roots or, less commonly, the spinal cord.Etiology and Risk FactorsHerniation commonly results from degeneration, in which aging reduces disc hydration and...
01:27Degenerative Disc Disease I: Introduction
Degenerative disc disease is a chronic condition in which intervertebral discs gradually lose structure and function. It is not infectious or autoimmune; rather, it results from age-related biochemical and mechanical changes, influenced by genetic, metabolic, and environmental factors.Structure and Function of DiscsThe spine contains 23 intervertebral discs that absorb load, distribute forces, maintain spacing, and allow flexibility. Each disc consists of a nucleus pulposus, a gel-like core...
01:23Degenerative Disc Disease ll: Pathophysiology
The symptoms of degenerative disc disease arise from a combination of mechanical compression, vascular compromise, and biochemical inflammation, which together disrupt nerve function and produce pain.Mechanical CompressionDisc degeneration reduces height and elasticity, predisposing to herniation of the nucleus pulposus, a major cause of radicular pain. Herniations may be protrusion (bulging with intact annulus), extrusion (nucleus extends beyond disc but remains connected), or sequestration...