PO.BCS01.10 · 生物信息与计算

通过Virtual Lab中机制驱动的模拟为靶点降低风险

De-risk targets through mechanism-enabled simulations in the Virtual Lab

海报缩略图:通过Virtual Lab中机制驱动的模拟为靶点降低风险
编号 4181 展板 8 时间 4/21 09:00–12:00 区域 Section 4 主讲 Krishna Bulusu, PhD
分会场 Integrative Computational Approaches 2
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作者与单位 Authors & Affiliations

Krishna Bulusu, Katalin Szégner, László Mérő, Eszter Szarka, Iván Fekete, María Victoria Ruiz Perez, Csilla Hegedűs, Imre Gáspár, Gábor Kovács, Kristóf Szalay, Daniel Veres

Turbine Simulated Cell Technologies Ltd., Budapest, Hungary

摘要 Abstract

中文摘要
在新型靶点的药物发现中最大限度地降低后期失败的风险,仍然是转化研究中的一个核心挑战。传统的临床前扰动数据集缺乏机制洞察与情境特异性。Turbine的Virtual Lab提供由AI引导的虚拟细胞建模所支持的、具有机制洞察的模拟,可预测代表患者异质性的临床前模型中遗传与药理扰动的表型与转录组学结果。该框架能够系统评估靶点-疾病关联机制、靶点风险以及组合策略,从而丰富临床前决策数据包。我们利用Simulated Cell技术,通过整合大规模组学数据(CCLE)与作为先验知识的精选信号网络,构建了1,200多个癌细胞系的虚拟复制品。这些虚拟细胞系在实验观察到的遗传(DepMap)与药理扰动数据(GDSC2)上进行训练以准确表征其表型响应,并在差异基因表达数据(LINCS)上进行训练以描述扰动后的转录组状态。基准测试针对一组未见过的细胞系进行,涵盖所有基因以及仅选择性必需基因。靶点评估报告通过将模拟衍生的表型与扰动后组学特征与精选的临床情报合并生成,产生了对信号水平作用机制、患者分层策略、组合潜力与初步安全性评估的整合视图。Simulated Cells准确重现了DepMap依赖性结果,在所有基因上展示出全局测试集Pearson相关系数为0.90。仅针对选择性必需基因,我们测得细胞系层面的Pearson相关系数为0.55。同一指标下复制品层面的Pearson相关系数为0.78,而基线(偏差)模型仅为0.23。值得注意的是,前瞻性验证的命中率在依赖性预测方面达到70%,同时也捕获了DepMap中未识别的新型依赖性。对于一组10个计算机模拟识别的靶点,与行业基准相比,我们观察到从识别到体内验证的时间线缩短了50%,体外验证率提高了100%。我们还建立了一个Virtual Lab平台,提供对这些模拟的简便、可扩展且可解释的访问。Turbine的靶点发现平台将机制可解释性与对实验依赖性的高度一致性相结合,架起了计算建模与转化研究之间的桥梁。Virtual Lab界面用户友好,经过优化以便在无需任何数据科学或AI专业知识的情况下采用。该方法能够在肿瘤学发现中实现数据驱动、风险降低且加速的靶点选择与产品组合推进。
查看英文原文 English abstract
Minimizing the risk of late-stage failure in drug discovery for novel targets remains a central challenge in translational research. Conventional preclinical perturbation datasets lack mechanistic insight and context specificity. Turbine's Virtual Lab offers access to simulations with mechanistic insights enabled by AI-guided virtual cell modeling to predict phenotypic and transcriptomic outcomes of genetic and pharmacological perturbations in preclinical models representative of patient heterogeneity. This framework enables systematic evaluation of target-disease linkage mechanisms, target liabilities, and combinatorial strategies to enrich preclinical decision-making data packages. We utilized our Simulated Cell technology to construct virtual replicates of more than 1,200 cancer cell lines by integrating large-scale omics data (CCLE) with a curated signaling network as prior knowledge. The virtual cell lines were trained on experimentally observed genetic (DepMap) and pharmacological perturbation data (GDSC2) to accurately represent their phenotypic responses, and on differential gene expression data (LINCS) to describe post-perturbation transcriptomic states. Benchmarking was performed against an unseen set of cell lines across all genes and selective essential genes only. Target assessment reports were generated by merging simulation-derived phenotypic and post-perturbation omics features with curated clinical intelligence, yielding an integrated view of signaling-level mechanisms of action, patient stratification strategies, combination potential, and initial safety assessments. The Simulated Cells accurately reproduced DepMap dependency outcomes, demonstrating a global test-set Pearson correlation of 0.90 across all genes. For selective essential genes only, we measured a cell-line wise 0.55 Pearson correlation. Replicate-level Pearson correlation is 0.78 for the same metric, while baseline (bias) models score only 0.23. Notably, the prospective validation hit rate stands at 70% for dependency predictions, also capturing novel dependencies not identified in DepMap. For a set of 10 in silico-identified targets, we observed a 50% shorter timeline from identification to in vivo validation and a 100% higher rate of in vitro validation compared with industry benchmarks. We have also established a Virtual Lab platform that provides easy, scalable, and interpretable access to these simulations. Turbine's target discovery platform combines mechanistic interpretability with strong concordance to experimental dependencies, bridging computational modeling and translational research. The Virtual Lab interface is user-friendly and optimized for adoption without any data science or AI expertise. This approach enables data-driven, de-risked, and accelerated target selection and portfolio advancement in oncology discovery.
利益披露 Disclosure
K. Bulusu, AstraZeneca Employment. K. Szégner, None.. L. Mérő, None.. E. Szarka, None.. I. Fekete, None.. M. Ruiz Perez, None.. C. Hegedűs, None.. I. Gáspár, None.. G. Kovács, None.. K. Szalay, None.. D. Veres, None.

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