突变RAS驱动的秘密基因导致乳腺癌骨肌肉缺陷
Ruizhong Wang1, Aditi S Khatpe1,2, Brijesh Kumar1
1Department of Surgery, Indiana University School of Medicine, Indianapolis, Indiana.
Cancer research communications
|April 23, 2024
概括
癌症亚型影响骨肌肉缺陷. 与PIK3CA不同的是,RAS路径突变显著损害肌肉功能和miR-486水平,这突显了需要考虑癌症基因组学来进行全身疗法.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 遗传学 遗传学 是一个
背景情况:
- 癌症引起的骨肌肉缺陷的严重程度各不相同.
- 癌症亚型中的基因组异常被认为是相关的,但研究不足.
- 有限的实验数据存在于癌症亚型对骨肌肉的特定影响.
研究的目的:
- 研究不同乳腺癌亚型和瘤突变如何影响骨肌肉功能.
- 为了将特定的基因组异常与骨肌肉中的分子变化相关联.
- 为了确定癌症诱导的肌肉功能障碍的潜在生物标志物.
主要方法:
- 利用了三种不同的乳腺癌患者衍生异种移植 (PDX) 模型.
- 用HRASG12V或PIK3CAH1047R瘤基因转化的人类乳腺上皮细胞.
- 通过旋杆性能和收缩力评估骨肌肉功能.
- 分析了骨肌肉和血液循环中的分子标记物 (miR-486,Pax7,pAKT,p53,CXCL1,-p38).
主要成果:
- 所有PDX模型都显示骨肌功能受损,miR-486.6降低.
- 只有三阴性乳腺癌 (TNBC) PDX在肌肉中激活了基-p38.
- HRASG12V转化细胞,但不是PIK3CA转化细胞,导致了显著的骨肌肉缺陷.
- HRASG12V瘤增加了循环中的CXCL1和改变了肌肉的miR-486,Pax7,pAKT和p53水平.
结论:
- 与PIK3CA驱动的癌症相比,突变RAS驱动的乳腺癌明显影响骨肌肉功能.
- 特定的基因组异常,特别是在RAS途径中,是癌症诱导系统性影响的关键决定因素.
- 针对癌症诱导的骨肌功能障碍的治疗策略应考虑潜在的癌症基因组.
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