相关实验视频

Updated: Jul 14, 2025

Optimization of a Multiplex RNA-based Expression Assay Using Breast Cancer Archival Material

Optimization of a Multiplex RNA-based Expression Assay Using Breast Cancer Archival Material

Published on: August 1, 2018

MAF1是HER2阳性乳腺癌中的预测生物标志物

Stephanie Cabarcas-Petroski¹, Gabriella Olshefsky², Laura Schramm³

¹Department of Biology, Pennsylvania State University, Beaver Campus, Monaca, PA, United States of America.

|October 6, 2023

概括

在大多数乳腺癌中,MAF1的表达减少,但在抗HER2治疗时会增加. 这表明MAF1可能会预测HER2阳性乳腺癌患者的治疗反应和生存率.

科学领域:

在瘤学瘤学.
分子生物学分子生物学
遗传学遗传学是一个

背景情况:

RNA聚合酶III转录对于细胞生长至关重要,并且在癌症中经常发生变化.
MAF1是RNA聚合酶III转录的负调节者,但其在人类癌症中的作用尚未完全理解.
之前的研究表明,MAF1表达在特定癌症类型中发生变化.

研究的目的:

调查乳腺癌中MAF1的变化,特别是HER2阳性亚型.
确定MAF1表达是否与乳腺癌患者的临床结果和治疗反应相关.

主要方法:

临床乳腺癌数据集的生物信息分析.
查MAF1表达变化和促进物甲基化.
在细胞系和患者队列中分析MAF1蛋白和mRNA水平.
MAF1表达与临床结果和对抗HER2治疗的反应的相关性.

主要成果:

MAF1在39%的乳腺癌亚型中被放大,与MYC同时发生.
MAF1放大与促进体甲基化增加相关.
在发光性,HER2阳性和三阴性乳腺癌 (TNBC) 亚型以及晚期乳腺癌中,MAF1蛋白表达显著下降.
在细胞系中抗HER2疗法治疗后,MAF1mRNA表达增加.
在HER2阳性患者中,MAF1表达的增加与在治疗后改善的无复发存活率相关.

结论:

MAF1的改变与HER2阳性乳腺癌有关.
在对抗HER2疗法的反应中,MAF1表达的变化.
MAF1可以作为一个预测性生物标志物,用于特斯图祖马布治疗疗效和乳腺癌的预后指标.

更多相关视频

Performing Data Mining And Integrative Analysis Of Biomarker in Breast Cancer Using Multiple Publicly Accessible Databases

Performing Data Mining And Integrative Analysis Of Biomarker in Breast Cancer Using Multiple Publicly Accessible Databases

Published on: May 17, 2019

Detection of Human Leukocyte Antigen Biomarkers in Breast Cancer Utilizing Label-free Biosensor Technology

Detection of Human Leukocyte Antigen Biomarkers in Breast Cancer Utilizing Label-free Biosensor Technology

Published on: March 24, 2015

相关概念视频

Mitogens and the Cell Cycle

Mitogens and the Cell Cycle

Mitogens and their receptors play a crucial role in controlling the progression of the cell cycle. However, the loss of mitogenic control over cell division leads to tumor formation. Therefore, mitogens and mitogen receptors play an important role in cancer research. For instance, the epidermal growth factor (EGF) - a type of mitogen and its transmembrane receptor (EGFR), decides the fate of the cell's proliferation. When EGF binds to EGFR, a member of the ErbB family of tyrosine kinase...