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发现了能调节患者细胞中信号传递的天然产品

Joseph A Balsamo¹, Hannah L Thirman^2,3,4, Kathryn E Penton⁵

¹Department of Pharmacology, Vanderbilt University, Vanderbilt University School of Medicine Nashville Tennessee USA brian.bachmann@vanderbilt.edu.

RSC chemical biology

|February 27, 2026

概括

这项研究引入了一条新的管道,以发现用于癌症治疗的微生物天然产品. 它使用单细胞分析揭示了人环素的结构变化如何影响白血病细胞,提供了针对患者的具体见解.

科学领域:

微生物学微生物学
自然产品化学化学
癌症治疗方法癌症治疗方法

背景情况:

微生物天然产品是化疗剂的重要来源.
发现和生产新的天然产品是具有挑战性的,因为难以刺激生物合成.
分析微生物生物合成基因集群预测了新疗法的巨大未开发潜力.

研究的目的:

开发和验证一种生物活性发现管道,用于识别和表征新型微生物天然产品.
为了研究在人类白血病细胞响应上对人环素的结构变异的影响.
为患者提供治疗分子的生物机制的洞察力.

主要方法:

使用光流细胞测量来检测生物活性二次代谢物.
多重活动代谢学与染色学数据相关的单细胞检测.
单细胞质量细胞计,以分析人类初级细胞上 antracycline 结构修改的影响.

主要成果:

从洞穴微生物提取物中鉴定出新型的赛德罗林和异诺环 B 的分子表型.
证明了与共享药理相结合的环素变体对急性髓性白血病 (AML) 细胞群产生差异性影响.
揭示了人环素中适度的结构变化可以导致细胞功能的显著,患者特异性变化.

结论:

开发的管道有效地识别了依赖刺激的生物活性天然产品.
药理学假设可能不足以预测 antracyclines 的治疗潜力.
单细胞分析为分子机制提供了深入的,患者层面的洞察力,指导新型和现有分子的临床应用.

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