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用于识别MDA-MB-468乳腺癌细胞中突变p53的目标基因和共识结合序列的ChIP芯片数据

Mai Nhu Uyen Le¹, Yichong Ning^1,2, Jianlin Zhou¹

¹State Key Laboratory of Developmental Biology of Freshwater Fish & Key Laboratory of Protein Chemistry and Developmental Biology of the Ministry of Education, College of Life Science, Hunan Normal University, Changsha, Hunan 410081, China.

|September 4, 2023

概括

突变p53,在三阴性乳腺癌 (TNBC) 中常见,改变基因标. 这项研究使用了ChIP-chip来识别由p53 R273H突变调节的基因,有助于理解其致癌作用.

科学领域:

分子生物学分子生物学
癌症遗传学癌症遗传学
基因组学就是基因组学.

背景情况:

编码瘤抑制蛋白p53的TP53基因在人类癌症中经常发生突变,特别是三阴性乳腺癌 (TNBC).
TP53突变,通常是5-8外子中的误解突变,会影响DNA结合域,改变p53的基因特异性.
了解突变p53的目标基因对于阐明其致癌机制至关重要.

研究的目的:

为了识别由常见的p53 R273H突变体调节的目标基因.
为了描述p53 R273H突变的DNA结合基因.
为进一步研究突变p53致癌活性的分子机制提供数据.

主要方法:

使用染色体免疫沉,然后使用DNA微阵列 (ChIP-chip).
使用了具有内源性p53-R273H突变的TNBC细胞系MDA-MB-468.
使用p53单克隆抗体识别了p53结合的DNA,并与促进子阵列共混合.

主要成果:

芯片分析确定了由p53 R273H突变体结合的特定DNA区域.
该研究产生了针对p53 R273H突变的目标基因和共识结合动机的数据.
原始和分析的数据可供进一步研究.

结论:

已确定的目标基因和结合动机为突变p53.3的功能提供了洞察力.
这项研究有助于了解TNBC中p53驱动的瘤发生的分子基础.
这些数据有助于进一步研究突变p53.3的致癌活性.

关键词:

染色体免疫沉 (ChIP) 是一种结合DNA的动机是结合DNA的动机.这是一个DNA微阵列.这就是TP53的特点.转录因子是一种转录因子.

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