哺乳动物细胞沟通和接触史的监测
在PubMed上查看摘要
概括
此摘要是机器生成的。研究人员开发了一种新的基因技术, 这种方法永久标记细胞连接,有助于研究发育,组织健康和瘤生长.
科学领域
- 细胞生物学
- 发育生物学
- 遗传学
背景情况
- 了解细胞间的沟通对于胚胎和瘤形成等过程至关重要.
- 在体内跟踪细胞接触提供了对动态生物事件的洞察力.
研究的目的
- 开发和验证一种新的细胞间遗传技术,用于在体内监测和追踪细胞间接触史.
- 在多细胞生物中设计细胞接触的永久标记系统.
主要方法
- 在发送细胞中设计了人工的Notch连接体,在小鼠的接收细胞中设计了一个人工的受体.
- 使用由细胞接触触发的合成Notch信号来激活下游的转录程序.
- 在接触时实施接受细胞的暂时或永久标记.
主要成果
- 在胚胎发育,组织平衡和瘤生长过程中成功观察到细胞与细胞的接触.
- 通过开发的遗传技术来监测和追踪细胞接触史的能力.
- 证实了转录程序的激活导致细胞在接触时标记.
结论
- 开发的细胞间基因技术为研究活体细胞相互作用提供了强大的工具.
- 这项技术可以应用于各种生物环境,包括发育,组织维护和癌症研究.
- 潜在的应用包括研究细胞命运的可塑性和复杂的细胞通信网络的绘制.
相关概念视频
Despite the protective membrane that separates a cell from the environment, cells need the ability to detect and respond to environmental changes. Additionally, cells often need to communicate with one another. Unicellular and multicellular organisms use a variety of cell signaling mechanisms to communicate with the environment.
Cells respond to many types of information, often through receptor proteins positioned on the membrane. For example, skin cells respond to and transmit touch...
Contact-dependent signaling, as the name suggests, requires that communicating cells be in direct contact with each other. This is achieved either through receptor-ligand interactions or by specialized cytoplasmic channels that allow the flow of small molecules between cells. In animal cells, channels called gap junctions facilitate contact-dependent signaling in certain tissues, whereas, plasmodesmata perform a similar function in plants.
Gap Junctions
In animal cells, gap junctions are formed...
Despite the protective membrane that separates a cell from the environment, cells need the ability to detect and respond to environmental changes. Additionally, cells often need to communicate with one another. Unicellular and multicellular organisms use a variety of cell signaling mechanisms to communicate to respond to the environment.
Cells respond to many types of information, often through receptor proteins positioned on the membrane. For example, skin cells respond to and transmit touch...
The Notch signaling pathway is a major intracellular signaling pathway that is highly conserved over a broad spectrum of metazoan species. It stands unique from other intracellular signaling mechanisms in animals because notch protein itself acts as the receptor as well as the primary signaling molecule.
The Notch gene came into the limelight in 1914 after the discovery that its mutation in Drosophila melanogaster leads to a serrated (or "notched") wing margin phenotype. It was not...
Hormones—or any molecule that binds to a receptor, known as a ligand—that are lipid-insoluble (water-soluble) are not able to diffuse across the cell membrane. In order to be able to affect a cell without entering it, these hormones bind to receptors on the cell membrane. When a first messenger, a hormone, binds to a receptor, a signal cascade is set off, causing second messengers, proteins inside the cell, to become activated, resulting in downstream effects.
Variety of Receptor...
Immunoglobulin-like cell adhesion molecules or Ig-CAMs are a versatile group of cell surface glycoproteins belonging to the immunoglobulin protein superfamily. Ig-CAMs possess the characteristic immunoglobulin protein domains and other domains such as the fibronectin type III domain. The Ig domains are glycosylated to varying degrees in different Ig-CAMs.
Ig-CAMs exhibit either homophilic binding (to other Ig-CAMs) or heterophilic binding (to other ligands such as integrins). While most Ig-CAMs...

