MLLT6/ATF2轴通过驱动DDIT3/4表达来抑制乳腺癌的进展
Qing Yu1, Jiayi Zhao1, Anli Yang2
1Department of Clinical Laboratory, Foshan Women and Children Hospital, Foshan, China.
Molecular cancer research : MCR
|May 17, 2024
概括
骨髓/淋巴细胞或混合血统白血病6 (MLLT6) 在乳腺癌中起到瘤抑制作用. 它的下调促进转移通过抑制通过MLLT6/ATF2轴的亡,建议PI3K/AKT抑制作为治疗策略.
科学领域:
- 在瘤学瘤学.
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 分子生物学分子生物学
背景情况:
- 表观遗传变化对癌症进展至关重要.
- 识别天然瘤抑制剂对于有效的癌症治疗至关重要,特别是克服转移.
研究的目的:
- 调查骨髓/淋巴细胞或混合血统白血病 (MLLT) 家庭成员在乳腺癌进展中的作用.
- 阐明MLLT6影响乳腺癌转移的机制,并确定潜在的治疗点.
主要方法:
- 在乳腺癌组织中分析MLLT6表达.
- 在体外功能测试 (殖民地形成,迁移,亡测试).
- RNA测序和染色体免疫沉降 (ChIP) 试验.
- 在体内转移模型.
主要成果:
- 高MLLT6表达与更好的预后相关;表达的减少与恶性瘤有关.
- 缺氧通过DNMT1在其促进体上的丰富而降低MLLT6的调节.
- 由于MLLT6的枯竭,它通过抑制细胞灭亡来促进繁殖和迁移,部分是通过对DNA损伤诱导转录3/4 (DDIT3/4) 的下调.
- 受到AKT信号传递影响的MLLT6/激活转录因子2 (ATF2) 轴诱导DDIT3/4表达并抑制转移.
结论:
- 在乳腺癌中,MLLT6通过MLLT6/ATF2/DDIT3/4通路促进细胞灭绝,从而起到瘤抑制作用.
- 由低氧驱动的MLLT6下调,有助于乳腺癌恶性和转移.
- 抑制PI3K/AKT信号传递为通过控制MLLT6表达来管理转移性乳腺癌提供了潜在的治疗策略.
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