相关实验视频
Updated: Oct 19, 2025

16:24
Profiling of Estrogen-regulated MicroRNAs in Breast Cancer Cells
Published on: February 21, 2014
20.4K
雌激素受体对RNA产生影响
1Departments of Molecular and Integrative Physiology and Cell and Developmental Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA; Cancer Center at Illinois, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
Cell
|September 24, 2021
概括
雌激素受体α (ERα) 是乳腺癌进展的关键因素,也是一种RNA结合蛋白. 这种新发现的ERα的RNA结合作用对于癌细胞的生存和健康至关重要.
科学领域:
- 分子生物学
- 癌症生物学
- 遗传学
背景情况:
- 雌激素受体α (ERα) 是一种核激素受体和转录因子.
- 在许多乳腺癌的进展中,ERα起着重要作用.
研究的目的:
- 研究ERα的非转录功能.
- 为了确定ERα是否具有RNA结合能力.
- 阐明ERα在癌症中的后转录活性.
主要方法:
- 这项研究使用了评估ERαRNA结合活性的技术.
- 研究了ERα对细胞过程的RNA结合的影响.
主要成果:
- 雌激素受体α (ERα) 作为一种RNA结合蛋白.
- 它的RNA结合活性提高了癌细胞的适应性.
- ERα的转录后功能有助于癌细胞的存活.
结论:
- 在癌症中,ERα具有双重作用,作为转录因子和RNA结合蛋白.
- 对于癌细胞的生存和健康,ERα的RNA结合功能至关重要.
- 针对ERα的转录后活性可能为乳腺癌提供新的治疗策略.
相关概念视频
Transducer Mechanism: Nuclear Receptors
1.9K
Nuclear receptors, or NRs, are unique transcription factors that regulate gene transcription and affect the cellular pathways involved in reproduction, development, or metabolism. Their ability to be stimulated by small lipophilic ligands and control vital cellular processes makes them ideal drug targets. Nearly 10-15% of currently prescribed drugs target these receptors.
About 48 different soluble family members of nuclear receptors are identified that can be divided into two main classes:
About 48 different soluble family members of nuclear receptors are identified that can be divided into two main classes:
1.9K
Types of RNA
7.0K
Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in regulating gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
RNA Performs Diverse...
RNA Performs Diverse...
7.0K
Regulation of Expression at Multiple Steps
1.1K
The gene expression in cells is regulated at different stages: (i) transcription, (ii) RNA processing, (iii) RNA localization, and (iv) translation. Transcriptional regulation is mediated by regulatory proteins such as transcription factors, activators, or repressors—these control gene expression by initiating or inhibiting the transcription of genes. Once a precursor or pre-mRNA is produced, it undergoes post-transcriptional modification, including 5' capping, splicing, and the...
1.1K
Nuclear Export of mRNA
8.0K
Before mRNAs are exported to the cytoplasm, it is crucial to check each mRNA for structural and functional integrity. Eukaryotic cells use several different mechanisms, collectively known as mRNA surveillance, to look for irregularities in mRNAs. Irregular or aberrant mRNA are rapidly degraded by various enzymes. If a defective mRNA escapes the surveillance, it would be translated into a protein which would either be non-functional or not function properly. One of the primary irregularities in...
8.0K
Regulation of Expression Occurs at Multiple Steps
23.8K
Gene expression can be regulated at almost every step from gene to protein. Transcription is the step that is most commonly regulated. This involves the binding of proteins to short regulatory sequences on the DNA. This association can either promote or inhibit the transcription of a gene associated with the respective sequence.
Transcription results in the generation of precursor (pre-mRNA) that consists of both exons and introns, which needs further processing before being translated to a...
Transcription results in the generation of precursor (pre-mRNA) that consists of both exons and introns, which needs further processing before being translated to a...
23.8K
Chromatin Structure Regulates pre-mRNA Processing
7.5K
In eukaryotic cells, nascent mRNA transcripts need to undergo many post-transcriptional modifications to reach the cell cytoplasm and translate into functional proteins. For a long time, transcription and pre-mRNA processing were considered two independent events that occur sequentially in the cell. However, it has now been well established that transcription and pre-mRNA processing are two simultaneous processes that are precisely regulated inside the cell.
The chromatin structure, especially...
The chromatin structure, especially...
7.5K

