PKCζ酸化VASP以调解乳腺癌细胞中的化学作用
Chunqing Wang1, Xiaoqing Zhao2, Liqing Zhao3
1Department of Clinical Laboratory Medicine, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of Laboratory Medicine China.
Experimental cell research
|October 27, 2023
概括
蛋白激酶C zeta (PKCζ) 通过化维门丁相关血清/三酸酶 (VASP) 来促进乳腺癌转移,增强细胞运动性和化学反应.
科学领域:
- 在瘤学瘤学.
- 细胞生物学 细胞生物学
- 分子生物学分子生物学
背景情况:
- 乳腺癌 (BC) 转移是癌症相关死亡的主要原因.
- 化疗是癌细胞转移的一个关键过程.
- 乳腺癌化学毒剂的精确分子机制正在研究中.
研究的目的:
- 阐明由蛋白激酶C zeta (PKCζ) 调节的乳腺癌细胞化学反应的分子机制.
- 为了确定参与乳腺癌转移的PKCζ相互作用蛋白质.
- 为了研究PKCζ在调节维门相关血清/氨酸酸酶 (VASP) 功能中的作用.
主要方法:
- 蛋白质学方法用于识别乳腺癌细胞中的PKCζ相互作用蛋白.
- 皮表皮生长因子 (EGF) 刺激以诱导蛋白质相互作用和细胞膜转位.
- 西方涂抹和功能测试以评估蛋白质酸化,局部化和细胞运动性.
主要成果:
- 鉴定出维门丁相关的血清/氨酸酸酶 (VASP) 是一种PKCζ相互作用的蛋白质.
- PKCζ在Ser157中酸化VASP,这对VASP在化学反应和活性蛋白聚合中的功能至关重要.
- 抗击PKCζ降低了前沿的VASP丰富,减弱了VASP-profilin1相互作用,降低了乳腺癌细胞的化学反应和运动性.
结论:
- PKCζ作为VASP的新激酶,促进乳腺癌细胞的化学反应和运动性.
- PKCζ-VASP通路是乳腺癌转移的一个重要因素.
- 这项研究为针对乳腺癌转移的新生物治疗策略提供了理论基础.
相关概念视频
Cancer Cell Migration through Invadopodia
2.3K
Invadosome is a broad category of cell surface structures with proteolytic activity that degrades the extracellular matrix (ECM). Invadosomes are present in normal cell types, including macrophages, endothelial cells, and neurons, as well as tumor cells. Although the macrophage podosomes and tumor cell invadopodia are classified as invadosomes, they have different structures, molecular pathways, and functions. Podosomes are short structures that last for a few minutes. However,...
2.3K
Chemotaxis and Direction of Cell Migration
3.4K
Cells can detect chemical cues in their environment and reorganize the cytoskeleton to migrate toward them or away from them. This directional migration, called chemotaxis, is essential during embryogenesis and development, immune response, tissue repair and regeneration, and reproduction. These chemical cues can either attract or repel the cell's movement. For example, axon development is determined by a combination of chemoattractants and chemorepellents that direct the growing axon...
3.4K
PI3K/mTOR/AKT Signaling Pathway
3.6K
The mammalian target of rapamycin (mTOR) is a serine/threonine kinase that regulates growth, proliferation, and cell survival in response to hormones, growth factors, or nutrient availability. This kinase exists in two structurally and functionally distinct forms: mTOR complex 1 (mTORC1) and mTOR complex 2 (mTORC2). The first form (mTORC1) is composed of a rapamycin-sensitive Raptor and proline-rich Akt substrate, PRAS40. In contrast, mTORC2 consists of a...
3.6K
cAMP-dependent Protein Kinase Pathways
6.4K
Cyclic Adenosine Monophosphate (cAMP) is an essential second messenger that activates protein kinase A (PKA) and regulates various biological processes. A single epinephrine molecule binds to GPCR and activates several heterotrimeric G proteins, each stimulating multiple adenylyl cyclase, amplifying the signal, and synthesizing large numbers of cAMP molecules. Small changes in cAMP concentration affect PKA activity. The binding of four cAMP molecules induces a conformational change in PKA,...
6.4K
mTOR Signaling and Cancer Progression
3.8K
The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...
The mTOR pathway or the...
3.8K
Cell Polarization by Rho Proteins
2.7K
Cell polarity is the asymmetric distribution of cellular and membrane components, making one side of the cell different from the other. This polarity is essential to many processes such as embryogenesis, axon migration, glucose transport across epithelial cells, and directional cell migration. A migrating cell responds to intracellular or extracellular signals via molecular cascades that reorganize the actin cytoskeleton to establish this polarity. In these cells, the Rho family proteins Cdc42,...
2.7K


