T7菌体显示显示了NOLC1作为人类乳腺癌MCF-7细胞中的GM3结合伙伴
Hyunju Choi1, Hee-Do Kim1, Yeon-Woo Choi1
1Molecular and Cellular Glycobiology Unit, Department of Biological Sciences, SungKyunKwan University, Seoburo 2066, Jangan-Gu, Suwon, 16419, South Korea.
Archives of biochemistry and biophysics
|November 8, 2023
概括
研究人员使用T7菌体显示识别了人类核细胞和卷状体蛋白1 (NOLC1) 作为一种新型蛋白质,与类酶GM3相互作用. 这一发现可能会揭示类酶GM3的含量.
科学领域:
- 葡萄糖生物学 葡萄糖生物学
- 分子生物学分子生物学
- 癌症研究 癌症研究
背景情况:
- 甘胺GM3是细胞过程的关键调节者,包括粘附,增殖和分化.
- 之前的研究使用T7菌体显示识别了GM3结合受体,突出显示了它在细胞信号传递中的作用.
- 了解GM3蛋白相互作用对于破译其多样化的生物功能至关重要.
研究的目的:
- 为了识别与化物GM3相互作用的新型蛋白质.
- 描述甘氏体GM3与人类核细胞和卷状体蛋白1 (NOLC1) 之间的相互作用.
- 探索GM3-NOLC1相互作用在癌细胞中的生物学意义.
主要方法:
- 利用T7菌体显示生物扫描与固定生物标记的3'-sialyllactose来选人类肺部cDNA库.
- 使用BLAST分析分离和分析候选蛋白序列.
- 使用谷氨S转移酶 (GST) 融合蛋白质测试证实了NOLC1与GM3的结合能力.
- 研究了NOLC1在MCF-7乳腺癌细胞中以多克索鲁比治疗的亚细胞局部化和表达变化.
主要成果:
- 确定了人类核细胞和卷状体蛋白1 (NOLC1) 作为与GM3相互作用的频繁分离的候选蛋白质.
- 证实了NOLC1与GM3的直接结合.
- 在MCF-7细胞中观察到NOLC1的细胞内定位,在多克索鲁比治疗后,核中表达增加.
- 在 doxorubicin 治疗的 MCF-7 细胞中发现了 GM3 和 NOLC1 水平之间的相关性.
结论:
- NOLC1是一种通过T7菌体显示识别的新型GM3相互作用蛋白.
- GM3和NOLC1之间的相互作用表明了潜在的新信号通路.
- 这些发现为了解类体GM3在细胞过程和癌症生物学中的功能性作用提供了基础.
相关概念视频
02:53Adaptive Mechanisms in Cancer Cells
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,...
01:05Cancer-Critical Genes II: Tumor Suppressor Genes
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
02:53Adaptive Mechanisms in Cancer Cells
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,...
01:05Cancer-Critical Genes II: Tumor Suppressor Genes
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
01:22Antigen Presenting Cells
The immune system is a complex network of cells and molecules that protects the body from foreign invaders. T cells, a type of white blood cell, play a crucial role in this process. They recognize and attack foreign substances, such as pathogens, that enter the body.
T cells require the help of antigen-presenting cells (APCs), which process foreign antigens into smaller fragments that can be recognized by T cells. These APCs are highly specialized cells that efficiently internalize antigens...
T cells require the help of antigen-presenting cells (APCs), which process foreign antigens into smaller fragments that can be recognized by T cells. These APCs are highly specialized cells that efficiently internalize antigens...