对介质细胞重编程的抗性维持了转移性乳腺癌中的克隆传播
Massimo Saini1, Laura Schmidleitner2, Helena Domínguez Moreno3
1Division of Stem Cells and Cancer, German Cancer Research Center (DKFZ), and DKFZ-ZMBH Alliance, Heidelberg, Germany; Heidelberg Institute for Stem Cell Technology and Experimental Medicine (HI-STEM gGmbH), Heidelberg, Germany; Institute of Stem Cell Research, Helmholtz Center Munich, Neuherberg, Germany; Department of Biology, Institute of Molecular Health Sciences, Swiss Federal Institute of Technology (ETH) Zurich, Zurich, Switzerland.
Cell reports
|May 31, 2023
概括
在乳腺癌细胞中持续表达的上皮细胞粘附分子 (EPCAM) 促进瘤生长和转移. 失去EPCAM会使细胞进入非瘤性介质细胞状态,抑制疾病的传播.
科学领域:
- 在瘤学瘤学.
- 癌症生物学 癌症生物学
- 细胞生物学 细胞生物学
背景情况:
- 皮质转介质转变 (EMT) 与癌症进展有关,但其在乳腺癌转移中的功能作用仍在争论中.
- 了解控制EMT的因素及其对瘤细胞行为的影响,对于开发有效疗法至关重要.
研究的目的:
- 研究人类乳腺癌转移中的表皮和介质细胞表型的功能相关性.
- 鉴定转移性乳腺癌中差异性疾病传播潜力的基础分子机制.
主要方法:
- 从人类转移性乳腺癌活检中分离了上皮细胞和介质细胞群.
- 孤立细胞群体的体内功能评估.
- 对表皮细胞粘附分子 (EPCAM) 表达水平和与疾病传播的相关性进行分析.
- 研究ZEB1和GRHL2在调节表观遗传程序和EMT之间的相互作用.
主要成果:
- 逐渐下降的上皮细胞粘附分子 (EPCAM) 水平与乳腺癌疾病传播的减少相关.
- 持久的EPCAM表达识别了抗EMT诱导和有能力竞争繁殖的表皮克隆.
- 失去EPCAM会导致克隆在介酶状态中被捕获,抑制瘤性和转移潜力.
- 独特的克隆轨迹,受ZEB1/GRHL2相互作用的影响,决定了表观遗传程序和EMT易感性.
结论:
- 对不可逆转的EMT敏感性抑制了乳腺癌中的克隆传播.
- 对介质细胞重编程的抗性维持了人类转移性乳腺癌模型中的疾病传播.
- EPCAM表达是影响转移潜力的不同克隆行为的一个关键标记.
相关概念视频
Metastasis
5.6K
Metastasis is the spread of cancer cells from the original site to distant locations in the body. Cancer cells can spread via blood vessels (hematogenous) as well as lymph vessels in the body.
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
5.6K
Mesenchymal Stem Cells
4.8K
Mesenchymal stem cells (MSCs) are adult stem cells that can differentiate into most connective tissue cell types, except for hematopoietic cells, depending upon the source of MSCs. For example, bone-marrow-derived MSCs (BM-MSCs) can differentiate into osteocytes, hepatocytes, and pancreatic and neuronal cells. MSCs can be isolated from various sources such as bone marrow, placenta, adipose tissue, teeth, and Wharton’s jelly, a gelatinous substance in the umbilical cord. The ease of their...
4.8K


