光学成像揭示了化疗诱导的残留疾病和复发的代谢重编程
Enakshi D Sunassee1, Riley J Deutsch1, Victoria W D'Agostino1
1Department of Biomedical Engineering, Duke University, Durham, NC, USA.
Science advances
|April 5, 2024
概括
三重阴性乳腺癌细胞通过改变其新陈代谢来逃避化疗. 耐药瘤显示线粒体活性增加和代谢多样性,与敏感瘤不同,提供新的治疗标.
科学领域:
- 在瘤学瘤学.
- 代谢研究研究 代谢研究
- 癌症生物学 癌症生物学
背景情况:
- 三阴性乳腺癌 (TNBC) 的治疗选择有限,大多数患者无法获得长期化疗反应.
- 耐药瘤细胞通过利用替代代代谢途径在化疗中存活下来,导致复发.
研究的目的:
- 研究在残留和复发性TNBC异种移植中具有差异性帕克利塔塞尔敏感性的纵向代谢重编程.
- 确定与TNBC治疗耐药性和残留疾病相关的代谢特征.
主要方法:
- 在体内使用纵向光学成像和代谢学.
- 采用了对帕克利塔克塞尔 (MDA-MB-231和HCC-1806) 有不同的敏感度的TNBC异种移植模型.
- 分析了代谢重编程,线粒体代谢和内代谢异质性.
主要成果:
- 耐药MDA-MB-231瘤在回归和残留疾病期间表现出非葡萄糖驱动的线粒体代谢和代谢异质性的增加.
- 敏感的HCC-1806瘤主要依赖于葡萄糖的吸收,其代谢变化最小.
- 耐药HCC-1806瘤与敏感瘤相比,更依赖线粒体代谢和更高的异质性.
结论:
- 代谢灵活性,线粒体代谢增加和代谢异质性增加是TNBC中持续残留疾病的特征.
- 这些代谢特征为TNBC患者选择合适的疗法和治疗时间提供了洞察力.
- 了解代谢重编程对于克服三阴性乳腺癌的化疗耐药性至关重要.
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