循环瘤细胞的生长信号自主性有助于转移性播种
Saptarshi Sinha1, Alex Farfel2, Kathryn E Luker2
1Department of Cellular and Molecular Medicine, School of Medicine, University of California San Diego, La Jolla, CA 92093, USA.
PNAS nexus
|February 5, 2024
概括
癌细胞通过"秘密和感觉"的生长因子循环实现了自给自足,推动了增殖和转移. 这种生长信号自主性对于循环瘤细胞至关重要,并预测治疗反应.
科学领域:
- 在瘤学瘤学.
- 癌症生物学 癌症生物学
- 分子细胞生物学 分子细胞生物学
背景情况:
- 自给自足的生长信号是癌症的一个关键标志,使细胞持续存活和增殖.
- 瘤细胞通过分泌和感知自身的生长因子 (GFs) 来实现这种自主性,从而创建自身隐形/隐形环.
- 一个涉及GTPase交换机的Golgi局部电路最近被确定为编排这种生长信号自主性的关键.
研究的目的:
- 定义自主癌症状态的转录组,蛋白质组和现象.
- 调查生长信号自主性在癌症进展中的作用,特别是在乳腺癌中.
- 了解自主性与干性,增殖,表皮-介质细胞可塑性和药物耐药性的关联.
主要方法:
- 利用基因编辑创建乳腺癌细胞,并没有用于增长信号自主性的电路.
- 进行了全面的转录基因和蛋白质基因分析,以表征自治状态.
- 来自自主性的基因表达特征,并分析了其在循环瘤细胞 (CTC) 中的存在.
主要成果:
- 自主性与增强的干性,增殖和表皮-介质细胞可塑性的程序有关.
- 自主性对于固独立,GF受限制的增殖,耐药性和转移性进展至关重要.
- 自主性特别与自我维持的表皮生长因子受体 (EGFR) /ErbB信号相关,并且在CTC中独特诱导.
结论:
- 增长信号自主性是癌症进展的关键驱动因素,使血液传播的关键过程成为可能.
- 在CTC中,自主性作为跟踪治疗反应和预测患者结果的生物标志物.
- 针对自主电路可能为晚期乳腺癌提供新的治疗策略.
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