PARD6A通过Serpina3促进肺腺癌细胞的增殖和侵入
Lanlin Hu1,2,3, Mingxin Liu4, Bo Tang3
1Yu-Yue Pathology Scientific Research Center, Chongqing, 400039, China.
Cancer gene therapy
|September 19, 2024
概括
帕尔6α (PARD6A) 通过增加细胞增殖,迁移和入侵来促进肺腺癌 (LUAD) 的进展. 这种蛋白调节Serpina3,表明Serpina3是LUAD的潜在治疗点.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 癌症研究 癌症研究
背景情况:
- 帕尔6α (PARD6A) 涉及癌症的开始和进展.
- 在各种癌症中,PARD6A经常被上调.
- 在肺腺癌 (LUAD) 进展中PARD6A的特定作用需要阐明.
研究的目的:
- 研究PARD6A在LUAD中的表达和预后意义.
- 确定PARD6A在LUAD细胞进展中的功能作用.
- 为了确定由PARD6A在LUAD中调节的下游分子机制.
主要方法:
- 在使用组织微阵列 (TMA) 的LUAD患者活检中分析PARD6A表达.
- 利用TCGA和GEO数据集进行生存概率分析.
- 进行了体外 (增殖,伤口愈合,Transwell测定,RNA-seq) 和体内 (皮下瘤小鼠模型) 实验.
- 在LUAD细胞系中操纵PARD6A和Serpina3表达 (H1299,H1975).
主要成果:
- PARD6A在LUAD组织中表达高,与患者预后不佳相关.
- 在体外,PARD6A过度表达增强了LUAD细胞的增殖,迁移和入侵.
- RNA测序确定了Serpina3作为PARD6A的一个关键下游目标.
- 塞尔皮纳3调制相互影响PARD6A水平影响的LUAD细胞行为.
结论:
- PARD6A显著促进了LUAD的进展.
- PARD6A至少部分通过诱导Serpina3表达来发挥其作用.
- PARD6A及其下游效应器Serpina3代表了LUAD的潜在治疗点.
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
Abnormal Proliferation
4.5K
Under normal conditions, most adult cells remain in a non-proliferative state unless stimulated by internal or external factors to replace lost cells. Abnormal cell proliferation is a condition in which the cell's growth exceeds and is uncoordinated with normal cells. In such situations, cell division persists in the same excessive manner even after cessation of the stimuli, leading to persistent tumors. The tumor arises from the damaged cells that replicate to pass the damage to the...
4.5K
Tumor Progression
6.3K
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...
6.3K
Adaptive Mechanisms in Cancer Cells
5.7K
Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
5.7K


