矩阵组件和细胞的相互作用调节了质瘤细胞的细胞和分子过程
Li Yao1, Nischal Neupane1, Teresa Shippy2
1Department of Biological Sciences, Wichita State University, 1845 Fairmount Street, Wichita, KS 67260, USA.
Brain research
|October 24, 2025
概括
瘤细胞在原蛋白上的增殖和迁移比在氨酸 (HA) 上更多. 原可调节细胞迁移中的途径,为质瘤提供潜在的治疗点.
科学领域:
- 神经瘤学神经瘤学
- 分子生物学分子生物学
- 生物化学 生物化学
背景情况:
- 质瘤中异常的细胞外矩阵 (ECM) 生产驱动瘤入侵.
- 氨酸 (HA) 和原影响质瘤细胞的增殖和迁移,但它们的调节作用尚未完全理解.
研究的目的:
- 研究原和HA基质对质瘤细胞迁移,增殖和转录组的影响.
- 阐明细胞过程的调节机制,这些过程受到质瘤中ECM组件的影响.
主要方法:
- 质瘤细胞 (U87和初级) 在原蛋白和HA基质上培养.
- 使用AlamarBlue®试验评估了细胞增殖.
- 测量了细胞迁移速度.
- 进行了转录组分析,以确定差异表达基因 (DEG) 和丰富的通路.
主要成果:
- 与HA基质相比,质瘤细胞在原上表现出更高的增殖和迁移速度.
- 转录组分析显示了诸如焦点粘附,actin细胞骨架调节,ECM受体相互作用和PI3K-Akt对原蛋白的信号传递等途径的丰富.
- 升级调节的DEG包括整体蛋白,ECM分子 (原体,纤维蛋白,拉米因) 和信号分子 (AKT3,RAC2).
- 矩阵金属蛋白酶 (MMP) 基因和糖氨基甘氨酸降解途径组件也在原蛋白上升调节.
结论:
- 与HA相比,原蛋白显著增强质瘤细胞的增殖和迁移.
- 由原诱导的转录性变化涉及调节细胞运动的关键通路.
- 了解这些ECM-质瘤细胞相互作用,可以了解质瘤治疗的潜在治疗点.
更多相关视频
07:39Co-culture of Glutamatergic Neurons and Pediatric High-Grade Glioma Cells Into Microfluidic Devices to Assess Electrical Interactions
Published on: November 17, 2021
3.9K
08:35Hyaluronic-Acid Based Hydrogels for 3-Dimensional Culture of Patient-Derived Glioblastoma Cells
Published on: August 24, 2018
13.6K
相关概念视频
Overview of Cell-Matrix Interactions
8.9K
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...
8.9K
Matrix Proteoglycans and Glycoproteins
4.9K
Proteoglycans are extensively glycosylated proteins, commonly found in the extracellular matrix, interwoven with collagen fibers. Hyaline cartilage, the most common type of cartilage in the body, consists of short and dispersed collagen fibers associated with large amounts of proteoglycans. These proteoglycans have long negative charges that attract cations, which in turn attract water molecules. This influx of ions and water molecules swells up the proteoglycan like a water-soaked gel that can...
4.9K
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
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
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
