在质瘤发育和进展中的紧接环蛋白
Jakub Moskal1, Slawomir Michalak1,2
1Department of Neurosurgery and Neurotraumatology, Poznan University of Medical Sciences, Poznan, Poland.
Frontiers in cellular neuroscience
|February 18, 2025
概括
紧密的结节调节细胞屏障,并在质瘤中被破坏,影响瘤透和药物输送. 了解这些变化是预测质瘤进展和治疗疗效的关键.
科学领域:
- 细胞生物学 细胞生物学
- 神经科学是一个神经科学.
- 在瘤学瘤学.
背景情况:
- 紧密的连接在上皮和内皮细胞中形成关键的细胞隔壁,调节分子和细胞运输.
- 这些结点包括像claudins,MARVEL蛋白和JAMs这样的不可分割的膜蛋白,这些蛋白质被诸如zonula occludens和cingulin这样的蛋白质定.
- 紧结蛋白由各种因素动态调节,包括细胞因子,缺血,炎症和翻译后修饰.
研究的目的:
- 调查紧结蛋白失调在质瘤形成和进展中的作用.
- 探索变化的紧接口对血脑屏障透性,周围胀和脑瘤中化疗药物输送的影响.
- 阐明如何理解交叉环境可以区分高度和低度质瘤.
主要方法:
- 关于质瘤紧结蛋白表达和功能的文献综述.
- 对研究的分析,研究紧密的结节,血脑屏障的完整性和质瘤特征之间的关系.
- 紧接点变化的相关性与质瘤透,胀和药物输送效率.
主要成果:
- 克劳丁与瘤发生有关,观察到克劳丁,奥克卢丁和zonula occludens-1的丰富性和局部化在质瘤中的失调.
- 由于紧密的接口中断,细胞间粘附的削弱有助于质瘤细胞的透.
- 血脑屏障的变化细胞透性影响周围胀和药物输送到质瘤.
结论:
- 紧张结节的调节失调是质瘤发展和进展的重要因素.
- 准紧密结路径可能为质瘤提供治疗策略.
- 了解紧结的动力学对于预测质瘤的行为和优化治疗结果至关重要.
相关概念视频
Tight Junctions
5.2K
Tight junctions are molecular seals between cells that prevent the leaking of fluids, ions, and other small solutes across cavities and compartments in multicellular organisms. They are mainly composed of claudin and occludin transmembrane proteins, and other proteins such as tricellulin and JAM (junctional adhesion molecule). All these proteins are 4-pass transmembrane proteins, except JAM, which is a single-pass transmembrane protein belonging to the immunoglobulin superfamily. The...
5.2K
Overview of Cell-Cell Junctions
22.6K
The complex three-dimensional arrangement of cells in any multicellular organism is defined and maintained by interactions of cells with each other and the extracellular matrix. Cell-cell junctions are specialized structures where the multi-protein complexes on one cell interact with the multi-protein complexes on another cell. These cell junctions are classified into three main types based on their function — occluding, anchoring, and gap junctions.
Occluding or Tight...
Occluding or Tight...
22.6K
Nervous Tissue: Glial Cells
2.6K
Glia, or neuroglia, are vital support cells that assist neurons in their functions. The term "glia" originates from the Greek word for "glue," reflecting their role in holding the nervous system together. These cells can be categorized into six types: four in the central nervous system (CNS) and two in the peripheral nervous system (PNS).
The CNS glial cell includes the astrocytes, the oligodendrocytes, the microglia, and the ependymal cells.
Astrocytes are star-shaped glial...
The CNS glial cell includes the astrocytes, the oligodendrocytes, the microglia, and the ependymal cells.
Astrocytes are star-shaped glial...
2.6K
Glial Cells
86.2K
Overview
86.2K
Tumor Progression
6.2K
Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
6.2K
Overview of Cell-Matrix Interactions
7.0K
The extracellular matrix or ECM holds cells together to form a tissue and allows the cells within the tissue to communicate. ECM comprises proteins such as fibronectin, collagen, laminin, etc. The most abundant protein in this space is collagen. Collagen fibers are interwoven with carbohydrate-containing protein molecules called proteoglycans. ECM allows cell migration and provides a structural scaffold at cell adhesion that anchors the cell when the extracellular matrix proteins interact with...
7.0K


