低氧诱导的反应反映在乳腺癌的 stromal 蛋白质组中
Silje Kjølle1, Kenneth Finne1, Even Birkeland1
1Centre for Cancer Biomarkers CCBIO, Department of Clinical Medicine, Section for Pathology, University of Bergen, Bergen, N-5021, Norway.
Nature communications
|June 22, 2023
概括
乳腺癌的缺氧涉及代谢变化. 侧膜中的33蛋白签名 (33P) 区分了瘤等级,并预测了患者的存活率,影响了放射治疗的有效性.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 癌症新陈代谢 癌症新陈代谢
背景情况:
- 癌症经常表现出缺氧和代谢重编程,推动瘤的进展.
- 乳腺癌亚型 (类似于光线和类似于基底) 显示出对缺氧的明显反应.
- 瘤微环境和分泌的蛋白质在癌症进展中起着至关重要的作用.
研究的目的:
- 通过分析不同等级的分泌蛋白质来研究乳腺癌缺氧反应.
- 为了识别基层性缺氧特征 (33P) 和它与瘤特征的关联.
- 为了评估33P签名在乳腺癌患者的预后价值.
主要方法:
- 在正常和缺氧条件下对低级和高级乳腺癌细胞系的秘密分析.
- 蛋白质学数据集成与激光微切割的人类乳腺癌流体.
- 鉴定和验证一个33蛋白 stromal hypoxia 概况 (33P).
- 对33P与代谢差异,瘤亚型和患者生存数据的相关性分析.
主要成果:
- 鉴定了一种33蛋白质的 stromal hypoxia 概况 (33P),区分了类似光线的和类似基底的乳腺瘤.
- 33P的特征与代谢适应和其他缺氧引起的变化有关.
- 33P蛋白的mRNA表达独立地预测了患者在分子亚型的生存率,包括低度的光样瘤.
- 在33P签名和放射治疗结果之间发现了显著的预后相互作用.
结论:
- 33P的特征是乳腺癌低氧反应和瘤异质性的强有力的生物标志物.
- 运动性缺氧概况可以预测患者的生存率和治疗反应,为个性化医疗提供了潜在的潜力.
- 对33P签名的进一步研究可能会揭示乳腺癌的新型治疗点.
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