一个基于超图的模型,用于预测癌症治疗中的潜在药物组合
Qi Wang1, Zhiheng Zhou2,3, Guiying Yan4,5
1College of Science, China Agricultural University, Beijing, 100083, China. wangqi@amss.ac.cn.
Interdisciplinary sciences, computational life sciences
|October 21, 2025
概括
这项研究引入了一种增强的超图随机步行 (EHRW) 模型,用于预测癌症等复杂疾病的有效药物组合. 该模型通过整合化学相似性来提高准确性,优于现有的多药协同发现方法.
科学领域:
- 计算生物学是一种计算生物学.
- 药物发现 药物发现
- 网络科学 网络科学
背景情况:
- 药物组合提高了复杂疾病的疗效,克服了复杂疾病的耐药性.
- 现有的计算模型往往无法捕捉超出对对相互作用的更高阶药物协同作用.
研究的目的:
- 开发一种先进的计算模型,用于预测有效的多药组合.
- 解决当前药物发现模型中对对相互作用预测的局限性.
主要方法:
- 引入了一个增强的超图随机步行 (EHRW) 模型来表示多种药物关系.
- 纳入了使用化学相似性 (SMILES指纹) 的后处理策略,以改进预测.
- 验证了肺癌和乳腺癌数据集的模型.
主要成果:
- 与基线模型相比,增强的EHRW模型显示出更高的预测准确性.
- 基于化学相似性的后处理显著改善了预测性能.
- 该模型成功地扩展到得分三种药物组合.
结论:
- 增强的EHRW模型提供了一个灵活,准确和可扩展的工具,用于发现有效的多药疗法.
- 整合网络拓与化学相似性可以提高药物组合预测.
- 这种方法有助于对复杂疾病的更高阶药物疗法进行评估.
相关概念视频
Combination Therapies and Personalized Medicine
5.8K
Combining two or more treatment methods increases the life span of cancer patients while reducing damage to vital organs or tissue from the overuse of a single treatment. Combination therapy also targets different cancer-inducing pathways, thus reducing the chances of developing resistance to treatment.
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
5.8K
Agonism and Antagonism: Quantification
935
When drugs are administered, they can elicit either an agonist or antagonist effect on the body. Agonism occurs when a drug activates a specific receptor, triggering a biological response. On the other hand, antagonism happens when a drug binds to the same receptors but blocks their activation, thereby preventing a biological response.
To quantify these effects, researchers use a dose-response curve, which provides valuable information about the potency and efficacy of a drug. Potency refers to...
To quantify these effects, researchers use a dose-response curve, which provides valuable information about the potency and efficacy of a drug. Potency refers to...
935
Combined Effects of Drugs: Synergism
6.7K
Synergism is a useful mechanism where combining two or more drugs is more effective than each constituent used alone. Such combinations are also called supra-additive interactions. The drugs collectively enhance the final therapeutic effect by acting on different targets. Another advantage is that the low dose of each constituent drug is sufficient to achieve the desired effect. This helps reduce the duration of therapy and lower the adverse effects of these drugs.
Such synergistic combinations...
Such synergistic combinations...
6.7K
Model Approaches for Pharmacokinetic Data: Distributed Parameter Models
218
Pharmacokinetic models are mathematical constructs that represent and predict the time course of drug concentrations in the body, providing meaningful pharmacokinetic parameters. These models are categorized into compartment, physiological, and distributed parameter models.
The distributed parameter models are specifically designed to account for variations and differences in some drug classes. This model is particularly useful for assessing regional concentrations of anticancer or...
The distributed parameter models are specifically designed to account for variations and differences in some drug classes. This model is particularly useful for assessing regional concentrations of anticancer or...
218
Pharmacokinetic Models: Overview
1.8K
Pharmacokinetic models utilize mathematical analysis to achieve a detailed quantitative understanding of a drug's life cycle within the body. They are instrumental in simulating a drug's pharmacokinetic parameters, predicting drug concentrations over time, optimizing dosage regimens, linking concentrations with pharmacologic activity, and estimating potential toxicity.
There are three primary types of models: empirical, compartment, and physiological. Empirical models, with minimal...
There are three primary types of models: empirical, compartment, and physiological. Empirical models, with minimal...
1.8K
Drug Discovery: Overview
10.9K
Drug discovery is a multifaceted process involving extensive screening, testing, and optimization of lead compounds to identify potential new drugs for therapeutic use. It combines several approaches, including screening large numbers of natural products, chemical modification of known active molecules, identification of new drug targets, and rational design based on biological mechanisms and drug-receptor structure. These approaches are carried out in both academic research laboratories and...
10.9K


