确定MRTFA/SRF通路作为癌症静止的关键调节器
Santiago Panesso-Gómez1, Alexander J Cole1, Alyssa Wield1
1Department of Internal Medicine and Magee-Womens Research Institute, University of Pittsburgh, Pittsburgh, PA, USA.
癌症中的化学抵抗可以由细胞静止驱动. 使用CCG257081准肌肉糖相关转录因子/血清反应因子 (MRTF/SRF) 途径,可以抑制癌细胞静止和瘤生长.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 癌症研究 癌症研究
背景情况:
- 化学抵抗显著导致癌症死亡率.
- 细胞静止是一种未被研究的驱动化学抵抗的机制.
- 理解静止调节对于开发有效的癌症疗法至关重要.
研究的目的:
- 研究肌肉相关转录因子/血清反应因子 (MRTF/SRF) 途径在癌细胞静止中的作用.
- 确定针对MRTF/SRF途径的治疗策略,以克服化学抵抗.
主要方法:
- 主要静止卵巢癌细胞 (qOvCa) 通过单细胞培养和RNA测序来分离和描述.
- 使用了MRTF-SRF相互作用的遗传干扰和使用MRTF/SRF抑制剂CCG257081的治疗.
- 使用了基因表达分析,患者衍生器官模型和异种移植模型.
主要成果:
- 在qOvCa中,许多差异表达的基因是由MRTF/SRF通路调节的.
- 抑制MRTF-SRF信号传递改变了qOvCa基因表达和诱导静止.
- 在多种癌细胞类型 (乳腺,肺,结肠,胰腺,卵巢) 中,CCG257081治疗诱导了静止.
- CCG081维持了乳腺癌器官的静止状态,并阻止了卵巢癌外移植的瘤生长.
结论:
- MRTF/SRF通路是各种癌症类型中静止的关键调节者.
- 准MRTF/SRF通路是一种有前途的治疗策略,可以对抗化疗抵抗和瘤进展.
更多相关视频
11:11Desthiobiotin-Streptavidin-Affinity Mediated Purification of RNA-Interacting Proteins in Mesothelioma Cells
Published on: April 25, 2018
13:59A Quantitative Measurement of Reactive Oxygen Species and Senescence-associated Secretory Phenotype in Normal Human Fibroblasts During Oncogene-induced Senescence
Published on: August 12, 2018
相关概念视频
Negative Regulator Molecules
mTOR Signaling and Cancer Progression
The mTOR pathway or the...
Master Transcription Regulators
Abnormal Proliferation
Multipotency of Hematopoietic Stem Cells
The Retinoblastoma Gene
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
