相关实验视频
Updated: Jan 31, 2026

09:45
Detection of Copy Number Alterations Using Single Cell Sequencing
Published on: February 17, 2017
12.1K
多模式分析TAAD病原:SHAP增强的可解释模型和单细胞测序分析揭示了免疫微环境的变化
Zhong Wang1,2, Yixian Wang1, Dianjun Tang1,3
1Department of Vascular and Thyroid Surgery, The First Hospital, China Medical University, Shenyang, Liaoning, China.
Frontiers in immunology
|January 30, 2026
概括
斯坦福A型大动脉解剖 (TAAD) 是一种致命的疾病. 研究人员将SIX4,SCNN1B和PCDH11X确定为关键基因,SIX4显著影响TAAD中的光滑肌肉细胞行为和免疫反应.
科学领域:
- 心血管生物学 心血管生物学
- 分子医学是分子医学.
- 基因组学就是基因组学.
背景情况:
- 斯坦福A型大动脉剖析 (TAAD) 呈现出一个关键的,高死亡率的心血管紧急情况.
- 有效的诊断和有针对性的干预需要更深入地了解TAAD的分子基础和可靠的生物标志物.
研究的目的:
- 确定关键的分子调节剂和潜在的生物标志物,用于斯坦福A型大动脉解剖 (TAAD).
- 阐明已识别的基因在TAAD的发病过程中的作用,特别是关于血管光滑肌肉细胞功能和免疫微环境.
主要方法:
- 综合批量和单细胞转录组数据使用Harmony批量校正.
- 采用机器学习算法 (LASSO,随机森林,SVM-RFE) 和SHAP分析来识别和优先考虑枢纽基因.
- 进行了免疫透,细胞通信和VSMC增殖/迁移测试.
主要成果:
- 通过融合机器学习确定SIX4,SCNN1B和PCDH11X作为重要的枢纽基因.
- SIX4成为主要的诊断预测因子 (AUC>0.9),并局部化到合成VSMCs,影响免疫信号传递 (CXCL12-CXCR4).
- 过度表达SIX4促进了VSMC的扩散和迁移,表明它在TAAD进展中的作用.
结论:
- SIX4,SCNN1B和PCDH11X是TAAD病变发生的关键调节者.
- 在TAAD背景下,SIX4在调节光滑肌肉细胞可塑性和免疫信号动态方面发挥着关键作用.
- SHAP引导模型对于识别TAAD等复杂血管疾病中的机械驱动因素非常有价值.
相关概念视频
Pedigree Analysis
89.3K
Overview
89.3K
Dimensional Analysis
64.2K
Dimensional analysis, also known as the factor label method, is a versatile approach for mathematical operations. The main principle behind this approach is: the units of quantities must be subjected to the same mathematical operations as their associated numbers. This method can be applied to computations ranging from simple unit conversions to more complex and multi-step calculations involving several different quantities and their units.
Conversion Factors and Dimensional Analysis
The unit...
Conversion Factors and Dimensional Analysis
The unit...
64.2K
Qualitative Analysis
24.2K
For solutions containing mixtures of different cations, the identity of each cation can be determined by qualitative analysis. This technique involves a series of selective precipitations with different chemical reagents, each reaction producing a characteristic precipitate for a specific group of cations. Metal ions within a group are further separated by varying the pH, heating the mixture to redissolve a precipitate, or adding other reagents to form complex ions.
For instance, group IV...
For instance, group IV...
24.2K
Mechanistic Models: Compartment Models in Individual and Population Analysis
264
Mechanistic models are utilized in individual analysis using single-source data, but imperfections arise due to data collection errors, preventing perfect prediction of observed data. The mathematical equation involves known values (Xi), observed concentrations (Ci), measurement errors (εi), model parameters (ϕj), and the related function (ƒi) for i number of values. Different least-squares metrics quantify differences between predicted and observed values. The ordinary least...
264
Per-Unit Sequence Models
449
An ideal Y-Y transformer, grounded through neutral impedances, displays per-unit sequence networks akin to those of a single-phase ideal transformer when subjected to balanced positive- or negative-sequence currents. These currents do not produce neutral currents, and their associated voltage drops.
Zero-sequence currents, which are identical in magnitude and phase, generate a neutral current, resulting in voltage drops across the neutral impedance and the low-voltage winding. If the...
Zero-sequence currents, which are identical in magnitude and phase, generate a neutral current, resulting in voltage drops across the neutral impedance and the low-voltage winding. If the...
449
Alterations in Respiration II
1.8K
There are numerous types of normal and abnormal respiration. Based on ventilatory movements, breathing patterns are classified as regular, deep, or shallow. Examples include Biot's breathing, Cheyne-Stokes respiration, Kussmaul's breathing, hyperventilation, and hypoventilation. Each pattern is clinically significant and aids in evaluating patients.
In Biot's breathing, the respiratory rate and depth are irregular, alternating between periods of deep gasping and apnea. Common causes...
In Biot's breathing, the respiratory rate and depth are irregular, alternating between periods of deep gasping and apnea. Common causes...
1.8K

