抗瘤疗法会影响体外表型和功能,健康的人类骨髓衍生的介质细胞 stromal 细胞
Bo Scherer1, Lucienne Bogun1, Annemarie Koch1
1Department of Hematology, Oncology and Clinical Immunology, Medical Faculty and University Hospital Duesseldorf, Heinrich Heine University Duesseldorf, Moorenstraße 5, 40225, Düsseldorf, Germany.
Archives of toxicology
|November 12, 2024
概括
某些癌症疗法会损害健康的介质细胞 stromal 细胞 (MSC),影响其功能,并可能导致骨髓抑制. 这项研究探讨了常见的抗癌药物如何影响MSC,为在治疗期间保持骨髓健康提供了见解.
科学领域:
- 癌症生物学 癌症生物学
- 血液学 血液学 血液学
- 细胞生物学 细胞生物学
背景情况:
- 抗瘤疗法可以通过影响健康的造血干细胞和原生细胞 (HSPC) 来引起血液毒性.
- 骨髓微环境中介质层细胞 (MSC) 的作用及其对癌症治疗的反应尚不清楚.
- 调查MSC对抗癌药物的敏感性对于了解与治疗相关的骨髓抑制至关重要.
研究的目的:
- 为了研究常见的抗癌药物 (埃托普西德,特莫索洛米德,5-阿扎西提丁,维尼托克拉克斯) 对健康的骨髓衍生MSC功能的影响.
- 确定MSC变化是否有助于与治疗相关的血液毒性.
- 确定在癌症治疗期间保留MSC功能的潜在策略.
主要方法:
- 在临床上相关的剂量中,健康的骨髓衍生MSC暴露于etoposide,temozolomide,5-azacitidine和venetoclax.
- 评估MSC细胞生长,衰老,mRNA表达 (例如CDKN1A) 和三线化分化能力.
- 血液形成支功能的评估和MSC反应与癌症细胞系和HSPC的比较.
主要成果:
- 低剂量埃托胺抑制了MSC的生长,诱导衰老,并损害了造血支持.
- 5-azacitidine改变了MSC分化,抑制了骨质生成,同时增强了体生成.
- 威尼托克拉克斯和泰莫索洛米德没有影响MSC,但抑制了癌细胞和HSPC,这表明直接损害造血细胞驱动了它们的血液毒性.
结论:
- 介酶体 stromal 细胞 (MSC) 对某些抗瘤剂敏感,表现出功能和分子变化.
- 除了直接的HSPC损伤之外,MSC的改变可能会导致与治疗相关的骨髓抑制.
- 了解MSC药物相互作用是开发癌症治疗期间支持性策略的关键.
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