在人类卵巢癌模型中,协调的蛋白质模块在单细胞分辨率下定义了对碳柏金的DNA损伤反应
Jacob S Bedia1, Ying-Wen Huang1, Antonio Delgado Gonzalez1
1Department of Urology, Stanford University School of Medicine, Stanford, CA 94305, USA.
bioRxiv : the preprint server for biology
|November 28, 2024
概括
管卵巢高度血清癌 (HGSC) 细胞表现出多种DNA损伤修复 (DDR) 反应对碳白金. 通过单细胞质细胞计识别的特定DDR敏感度模块可以预测患者的抗性.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 管卵巢高度血清癌 (HGSC) 是一种致命的妇科癌症.
- 基于的化疗是一种常见的治疗方法,但对抗性机制的了解很少.
- 缺乏生物标志物阻碍了高高质量纤维细胞的有效治疗策略.
研究的目的:
- 系统地评估DNA损伤反应 (DDR) 蛋白质酸化和HGSC中的丰富性,使用单细胞质细胞计.
- 在单细胞水平上确定基底的碳烯抗性和敏感性的分子机制.
- 探索潜在的生物标志物来预测患者对化疗的反应.
主要方法:
- 单细胞质细胞计 (CyTOF) 用于分析HGSC细胞系和患者模型中的蛋白质表达.
- 细胞的特征是基于核内白金水平作为碳白金吸收的代理.
- 使用无监督和分解分析来识别与药物反应相关的独特蛋白质模块.
主要成果:
- 具有相似含量的HGSC细胞表现出不同的细胞命运和DDR反应.
- 观察到连续的DDR反应,揭示了细胞对碳金反应的复杂性.
- 通过单细胞分辨率确定了与碳白抗性和敏感性相关的八个不同的蛋白质模块.
- 在患者衍生模型中,复杂的DDR灵敏度模块与治疗反应有显著的关联.
结论:
- 单细胞质细胞计提供了一种强大的方法来剖析HGSC中复杂的耐药性表型.
- 鉴定到的DDR灵敏度模块显示出其作为一种临床生物标志物的潜力,用于表征抗性.
- 对该模块的进一步研究可能会为高高血压患者改善治疗策略.
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