氨酸轴转录组学定义了三种神经母细胞瘤亚型和一个固定的四基因预后特征,与免疫相关
Ying Zheng1, Yanan Zhang2, Xin Li3
1Department of Anesthesiology, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.
Translational pediatrics
|February 9, 2026
概括
这项研究确定了基于氨酸-氨酸代谢的三种神经母细胞瘤 (NB) 亚型,开发了风险分层的四个基因签名,并预测了免疫治疗反应. 这些发现支持以代谢为基础的NB风险评估.
科学领域:
- 在瘤学瘤学.
- 代谢途径 代谢途径
- 癌症基因组学 癌症基因组学
背景情况:
- 代谢可塑性影响神经母细胞瘤 (NB) 异质性和治疗结果.
- 氨酸-氨酸 (氨酸-氨酸) 的组合
- 在Arg轴上.
- ) 代谢计划的组织和NB的临床意义尚未完全理解.
研究的目的:
- 在NB中定义Arg轴转录组子类型.
- 开发和验证由Arg轴衍生的预后风险评分.
- 探索这些亚型和风险评分的免疫相关性.
主要方法:
- 利用54基因的Arg/proline代谢小组进行共识聚类以确定亚型.
- 使用随机森林和考克斯建模开发了一种固定系数的四基因特征.
- 在外部NB队列和免疫疗法数据集中验证了签名.
- 使用ESTIMATE,MCP-counter和CIBERSORT评估免疫背景;使用TIDE和IPS预测检查点反应.
- 使用连接地图 (CMap 2.0) 逆转高风险程序的优先组合.
主要成果:
- 确定了三种Arg轴亚型,具有不同的生存结果和不同的瘤干度 (mRNAsi).
- 这四个基因签名准确地分层了NB患者的结果,独立于年龄,阶段和MYCN,并显示出临床实用性.
- 较高的风险得分与髓质细胞/ECM主导的微环境相关,免疫治疗队伍的生存率较低.
- 素脱乙酶 (HDAC) 抑制,特别是氨酸 (MS-275),被提名用于逆转高风险的转录基因特征.
结论:
- 基于Arg轴的方法有效地定义了NB亚型,并产生了可概括的四基因预后特征.
- 这种特征与免疫微环境相关,并建议治疗策略,包括抑制HDAC.
- 这些发现支持NB的代谢信息风险分层,需要进一步验证.
相关概念视频
Rotational Motion about a Fixed Axis
1.4K
A rigid body's rotation around a fixed axis makes every point within it trace a circular path around a specific line or point. The term given to this type of spinning is defined by the angular position, symbolized by the angle θ. This angle is gauged from a static reference line to the revolving object. From this angular position, any variation is referred to as angular displacement, denoted by dθ. The extent of this displacement can be calculated in degrees, radians, or...
1.4K
Equation of Motion: Rotation About a Fixed Axis
549
Consider a flywheel, having an uneven mass distribution, rotating steadily around a fixed axis. As this rotation occurs, the center of mass of the flywheel traces a circular path. Understanding the acceleration of this center of mass requires observing both its tangential and normal components.
The tangential component is dependent on the direction of the angular acceleration of the flywheel. The tangential component of the acceleration propels the flywheel along its path. On the other hand,...
The tangential component is dependent on the direction of the angular acceleration of the flywheel. The tangential component of the acceleration propels the flywheel along its path. On the other hand,...
549
Correlations
36.5K
Correlation means that there is a relationship between two or more variables (such as ice cream consumption and crime), but this relationship does not necessarily imply cause and effect. When two variables are correlated, it simply means that as one variable changes, so does the other. We can measure correlation by calculating a statistic known as a correlation coefficient. A correlation coefficient is a number from -1 to +1 that indicates the strength and direction of the relationship between...
36.5K
Hypothalamic-Pituitary Axis
66.4K
The response to stress—be it physical or psychological, acute or chronic—involves activation of the Hypothalamic-Pituitary-Adrenal (HPA) axis. The HPA axis is part of the neuroendocrine system because it involves both neuronal and hormonal communication. Its function is to regulate homeostatic systems—metabolic, cardiovascular, and immune—providing the necessary means to respond to a stressor.
66.4K
Correlation and Causation
42.9K
Statistical tests can calculate whether there is a relationship, or correlation, between independent and dependent variables. An indirect relationship of the variables signifies a correlation, while a direct relationship shows causation. If it is determined that no connection exists between the variables, then the correlation is a coincidence.
Correlation versus Causation
If the dependent variable increases or decreases when the independent variable increases, there is a positive or negative...
Correlation versus Causation
If the dependent variable increases or decreases when the independent variable increases, there is a positive or negative...
42.9K
Fixed Action Patterns
17.7K
A fixed action pattern (FAP) is a specific, hard-wired sequence of behaviors that occurs in response to an external stimulus, called a sign stimulus. The behavior is “fixed” because it is essentially unchangeable—proceeding similarly across individuals of a species every time it occurs.
17.7K


