组织起源的转录基因相互作用作为炎症衰老和衰老基因发现指标
Wei Emma Wu1, Qingyue Wei1, Zixia Zhou1
1Department of Radiation Oncology, Stanford University, Stanford, CA, 94305, USA.
Computers in biology and medicine
|June 17, 2025
概括
这项研究引入了"基因图"以可视化基因相互作用,从转录组学数据创建了一个准确的衰老时钟. 这种新的方法超越了现有的测试,并建议采取干预措施来对抗与年龄相关的免疫衰退.
科学领域:
- 免疫学 免疫学 免疫学
- 遗传学 遗传学 是一个
- 计算生物学 计算生物学
背景情况:
- 老龄化涉及复杂的免疫和生理变化,增加疾病风险.
- 从高维转录组学中识别免疫遗传衰老标记是很困难的,因为数据的复杂性.
- 基因与基因的相互作用至关重要,它们的模式随着年龄的增长而以组织特定的方式发生变化.
研究的目的:
- 开发一种用于识别免疫遗传衰老标记的新方法.
- 为了创建一个高度准确的,组织特定的炎症衰老时钟.
- 探索与年龄相关的免疫衰退的潜在干预措施.
主要方法:
- 将单细胞RNA测序 (scRNA-seq) 数据转换为代表空间转录基因相互作用的"基因图".
- 利用基因图谱来检测基因相互作用模式中与衰老相关的变化.
- 与传统方法 (血液检测,miRNA,蛋白质组学) 进行比较.
主要成果:
- 使用基因组图,构建了一个高度准确的,特定于组织的炎症衰老时钟.
- 基于基因组图的时钟显著超过了传统的衰老预测方法.
- 一项in silico研究表明,通过Map3k1/Map2k4/JNK途径进行潜在的干预可以逆转B细胞衰老.
结论:
- 基因组图为在衰老研究中分析复杂的转录基因组数据提供了一个强大的新策略.
- 开发的衰老时钟对理解和潜在地减轻与年龄相关的疾病有广泛的影响.
- 这一框架可以促进衰老和发育生物学研究和治疗干预.
更多相关视频
相关概念视频
01:19The Effect of Aging on Tissues
2.6K
Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...
2.6K
01:26Aging
198
Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
198
02:51mRNA Stability and Gene Expression
5.8K
The structure and stability of mRNA molecules regulates gene expression, as mRNAs are a key step in the pathway from gene to protein. In eukaryotes, the half-life of mRNA varies from a few minutes up to several days. mRNA stability is essential in growth and development. The absence of the proteins regulating its stability, such as tristetraprolin in mice, can cause systemic issues, including bone marrow overgrowth, inflammation, and autoimmunity.
Cis-acting Elements involved in mRNA stability
Cis-acting Elements involved in mRNA stability
5.8K