同时准BMI1和MYC,以消除状细胞癌症瘤中的癌症干细胞
Zhen Qin1, Shuo Liu1, Yunfei Zheng2
1Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology, Beijing 100081, P.R. China.
Cell reports. Medicine
|April 16, 2025
概括
在头癌干细胞 (CSCs) 中准BMI1可以导致非干细胞恢复到CSCs. 双重阻断BMI1和MYC可以消除CSC并防止复发.
科学领域:
- 在瘤学瘤学.
- 癌症干细胞生物学
- 头部和部癌症研究研究
背景情况:
- Bmi1阳性 (Bmi1+) 瘤细胞在头角状细胞癌 (HNSCC) 中作为癌症干细胞 (CSC) 起作用,有助于疾病复发和治疗耐药性.
- 虽然BMI1抑制剂减少CSCs,但针对非干细胞的西斯普拉丁联合治疗显示出更大的疗效. 然而,非干细胞在治疗后恢复到CSC的可能性需要进一步调查.
研究的目的:
- 调查HNSCC中非干细胞瘤细胞在BMI1向治疗后可能回归到CSC的体内机制.
- 探索针对BMI1/MYC轴的潜力,以持续消除CSC和预防HNSCC的复发.
主要方法:
- 在HNSCC的临床前模型中使用了BMI1抑制剂和西斯丁.
- 采用血统追踪来追踪瘤细胞的命运,并确定逆转机制.
- 研究了DNA损伤,核因子kB (NF-kB) 信号传递,炎症性细胞因子和MYC表达在CSC可塑性中的作用.
主要成果:
- 单独使用BMI1抑制剂导致瘤暂时回归,随后复发.
- 观察到,质素16标记的非干瘤细胞恢复到Bmi1+ CSC,推动补偿性瘤生长.
- 抑制BMI1激活了DNA损伤/NF-κB信号和细胞因子分泌,提高了非干细胞中的MYC的调节,促进了它们的转变为CSC.
- 结合MYC的遗传或药理抑制与BMI1向导致持续的CSC根除和预防复发.
结论:
- 非干细胞瘤细胞具有可塑性,使他们能够在BMI1向治疗后恢复到CSC,由MYC上调调节介导.
- 双重阻断BMI1和MYC代表了消除CSC和预防HNSCC复发的有希望的治疗策略.
关键词:
在BMI1中,BMI1是BMI1.在IL-6的研究中,IL-6被认为是IL-6的基因.我的世界 MYC在 NF-κBB 中.癌症干细胞是癌症干细胞.头部和部状细胞癌瘤质素 16 质素 16 质素更多相关视频
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