在 doxorubicin 化疗后的 trastuzumab 治疗期间,外周血液单核细胞中线粒体功能和细胞死亡模式的变化
Krit Leemasawat1,2,3, Nichanan Osataphan1,2,3, Nattayaporn Apaijai2,3
1Cardiology Division, Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand.
Biomedicines
|September 28, 2024
概括
特拉斯图祖马布可能通过损害外周血液单核细胞 (PBMCs) 中的线粒体功能和细胞活力而导致心脏损伤. 这项研究评估了在接受治疗的HER2阳性乳腺癌患者中的这些影响.
科学领域:
- 在瘤学瘤学.
- 心脏病学 心脏病学
- 免疫学 免疫学 免疫学
背景情况:
- 反HER2抗体trastuzumab与心脏毒性有关,可能是通过线粒体功能障碍.
- 周围血液单核细胞 (PBMCs) 对评估特拉斯图祖马布诱导的心脏毒性的实用性尚不清楚.
研究的目的:
- 为了研究治疗期间来自HER2阳性乳腺癌患者的PBMC中的线粒体功能,氧化应激和细胞死亡的时间变化.
- 为了将这些变化与HER2阴性乳腺癌患者的PBMCs进行比较,这些患者没有接受trastuzumab治疗.
主要方法:
- 招募了18名 HER2 阳性乳腺癌患者接受多克索鲁比和特拉斯图祖马布治疗,并与 HER2 阴性对照进行了匹配.
- 定期收集血液检测心脏生物标志物和PBMC;进行心声回声.
- 在孤立的PBMC中评估了线粒体呼吸,氧化应激,亡和亡.
主要成果:
- 在多克索鲁比加重的亚临床心脏损伤后使用trastuzumab.
- 线粒体呼吸能力在多克索鲁比后的对照中增加,但在接受过特鲁祖马布治疗的患者中没有增加.
- 细胞亡和亡在对照组中降低了,但在治疗了trastuzumab的患者中没有降低,这表明细胞活力受损.
结论:
- 特拉斯图祖马布有助于微妙的心肌损伤.
- 特拉斯图祖马布损害了线粒体呼吸,并降低了单独的PBMC中的细胞活力.
- PBMCs可能作为特斯图祖马布诱导心脏毒性的潜在生物标志物.
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