超越细胞与细胞接触:Eph信号在中枢神经系统瘤中的治疗潜力
Fernanda Cristina Poscai Ribeiro1, Moisés Willian Aparecido Gonçalves2,3, Aleff Mascarenhas Silva1
1Department of Internal Medicine, Western São Paulo University (UNOESTE), Medical School, Guarujá, São Paulo, Brazil.
Frontiers in molecular neuroscience
|November 7, 2025
概括
埃弗/埃弗林信号传递在脑瘤中起着双重作用,促进一些,同时抑制其他. 针对这个系统为中枢神经系统瘤提供了有前途的治疗策略.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 神经科学是一个神经科学.
背景情况:
- 埃弗受体氨酸激酶和埃弗林配体形成了一个双向信号系统,对细胞功能至关重要.
- 这个系统的失调与各种癌症有关,包括中枢神经系统 (CNS) 瘤.
- 了解Eph/ephrin在中枢神经系统瘤中的作用,对于开发向疗法至关重要.
研究的目的:
- 审查关于中枢神经系统瘤中Eph/ephrin表达和功能的临床前和临床数据.
- 评估针对这些恶性瘤的Eph/ephrin轴的治疗潜力.
- 概述Eph/ephrin信号传递在脑瘤进展中的上下文依赖的作用.
主要方法:
- 临床前模型和临床队列的综合性审查.
- 在质瘤,脑髓母细胞瘤和脑膜瘤中分析Eph/ephrin表达模式.
- 评估与Eph/ephrin失调相关的功能结果.
主要成果:
- 在质瘤中,EphA2/A3的过度表达与更高的度和侵入性相关,而以弗林-A1/A5显示瘤抑制作用.
- 脑髓母细胞瘤中EphB1/A4的升高与血管生成和迁移的增加有关.
- 在脑膜瘤中异常的EphA2/B1激活通过mTOR和ERBB3通路促进增殖.
结论:
- 在中枢神经系统瘤中,eph/ephrin信号表现出双重作用,既起瘤驱动作用,又起瘤抑制作用.
- 针对Eph/ephrin轴的新兴疗法显示出显著的临床前抗瘤疗效.
- 结合调节Eph/ephrin相互作用为治疗中枢神经系统恶性瘤提供了一个有希望的策略.
相关概念视频
Role of Ephrin-Eph Signalling in Intestinal Stem Cell Renewal
2.6K
Erythropoietin-producing hepatocellular carcinoma receptor (Eph) and its ligand, Eph receptor-interacting protein (Ephrin) were first discovered in the human carcinoma cell line, hence the name. Ephrin-Eph interaction guides cells to reach their appropriate location in adult tissues. They also play an essential role in the immune system by helping in immune cell migration, adhesion, and activation. Based on their structure and function, Eph is divided into two classes — EphA and EphB.
2.6K
Mitogens and the Cell Cycle
7.7K
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...
7.7K
Interactions Between Signaling Pathways
7.2K
Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
7.2K
Intracellular Signaling Affects Focal Adhesions
3.5K
Integrins act both as extracellular input receivers and as intracellular processing activators. As their name suggests, integrins are entirely integrated into the membrane structure. Their hydrophobic membrane-spanning regions interact with the phospholipid bilayer's hydrophobic region. These membrane receptors provide extracellular attachment sites for effectors like hormones and growth factors. They activate intracellular response cascades when their effectors are bound and active.
Some...
Some...
3.5K
Targeted Cancer Therapies
8.6K
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
There are several types of targeted therapies against...
8.6K
The Tumor Microenvironment
7.6K
Every normal cell or tissue is embedded in a complex local environment called stroma, consisting of different cell types, a basal membrane, and blood vessels. As normal cells mutate and develop into cancer cells, their local environment also changes to allow cancer progression. The tumor microenvironment (TME) consists of a complex cellular matrix of stromal cells and the developing tumor. The cross-talk between cancer cells and surrounding stromal cells is critical to disrupt normal tissue...
7.6K


