黑色素瘤中的细胞层次分离了生长和转移
在PubMed上查看摘要
概括
此摘要是机器生成的。黑色素瘤细胞的多样性促进了瘤的生长和转移. 这些细胞在周围细胞中获得特定的状态,其中一些开始转移而不是主要瘤生长.
科学领域
- 癌症学
- 癌症生物学
- 细胞动力学
背景情况
- 黑色素瘤表现出显著的异质性和可塑性,但细胞状态多样性的起源和程度尚不清楚.
- 目前尚不清楚不同或重叠的黑色素瘤亚群是否导致瘤生长和转移.
研究的目的
- 研究黑色素瘤细胞状态多样性的起源和程度.
- 确定不同的细胞亚群是否支持瘤生长和转移.
主要方法
- 鼠标遗传学
- 单细胞和空间转录组学
- 血统追踪
- 定量建模
主要成果
- 鉴定了一种反映胚胎神经发展的瘤生长层次模型.
- 瘤起源能力与通过内皮细胞沟通获得的周围息地有关.
- 随着时间的推移,追踪到类似甲状腺瘤的细胞并没有促进原发性瘤的生长,而是引发了转移,在次要器官中切换了细胞身份.
结论
- 在空间和时间上绘制了黑色素瘤细胞状态和轨迹.
- 不同的细胞池似乎负责支持瘤生长与转移.
- 通过微环境线索对癌细胞进行重编程的治疗策略是合理的.
相关概念视频
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...
Cell migration is a process by which the cells move from one location to another, playing an essential role in embryological development, repair and regeneration, immune response, and metastasis. Cells migrate in response to chemical or mechanical signals generated by specific organs or tissues. The overall mechanism includes three steps - polarization, protrusion, and release. Polarization involves the formation of a distinct cell front and rear, which determines the direction of movement.
Mitogens and their receptors play a crucial role in controlling the progression of the cell cycle. However, the loss of mitogenic control over cell division leads to tumor formation. Therefore, mitogens and mitogen receptors play an important role in cancer research. For instance, the epidermal growth factor (EGF) - a type of mitogen and its transmembrane receptor (EGFR), decides the fate of the cell's proliferation. When EGF binds to EGFR, a member of the ErbB family of tyrosine kinase...
Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Cancers arise due to mutations in genes involved in the regulation of cell division, which leads to unrestricted cell proliferation. Modern science and medicine have made great strides in the understanding and treatment of cancer, including eradicating cancer in some patients. However, there is still no cure for cancer. This is largely due to the fact that cancer is a large group of many diseases.
Tumors may result in a case where two people have the same mutations in an oncogene or tumor...
The cadherins are a superfamily of cell adhesion molecules comprising over 180 variants, with specific tissues expressing a particular combination of cadherin types. Cadherins generally exhibit homophilic binding; i.e., cadherins on one cell bind to cadherins of the same or closely related type on another cell. Thus, cells of the same type have a specific affinity to bind to each other and sort themselves into clusters to form tissues.
Cell Sorting During Development
Cell sorting plays an...

