相关实验视频
Updated: Sep 18, 2025

11:42
Induction of Mesenchymal-Epithelial Transitions in Sarcoma Cells
Published on: April 7, 2017
9.5K
微RNA miR-193b-3p通过准RSF1来调节食道癌的进展
Yao Lin1, Xudong Zhao1,2, Zhenhua Du1
1School of Life Sciences, Henan University, Kaifeng 475004, China.
Cells
|June 25, 2025
概括
微RNA miR-193b-3p通过向RSF1.1来抑制食道癌 (ESCA) 的进展. 这个miR-193b-3p/RSF1轴是ESCA的关键调节器,提供潜在的治疗点.
科学领域:
- 分子瘤学分子瘤学
- 癌症生物学 癌症生物学
- 基因调节 基因调节
背景情况:
- 食道癌 (ESCA) 是全球癌症死亡的主要原因.
- 驱动ESCA启动和进展的分子机制尚未完全阐明.
- 微RNAs (miRNAs) 被认为是各种癌症的关键调节者.
研究的目的:
- 为了确定食道癌症进展的新型分子调节剂.
- 研究微RNAmiR-193b-3p及其目标基因RSF1在ESCA中的作用.
主要方法:
- 对TCGA_ESCA数据集和RT-qPCR进行分析,以评估RSF1和miR-193b-3p的表达.
- 双露西法酶记者测定和miRNA模仿/抑制剂转染证实RSF1是miR-193b-3p的直接目标.
- 实验室细胞增殖,迁移和入侵测定,以及体内异种移植小鼠模型.
主要成果:
- 在ESCA中,RSF1表达显著升高,与miR-193b-3p水平相反相关.
- miR-193b-3p直接针对ESCA细胞中的RSF1并对其进行下调.
- 过度表达miR-193b-3p抑制了ESCA细胞的增殖,迁移和入侵,效应被RSF1.1部分逆转.
- 在ESCA异种移植模型中,AgomiR-193b-3p的使用抑制了瘤生长.
结论:
- 在食道癌的进展中,miR-193b-3p/RSF1轴起着至关重要的作用.
- miR-193b-3p通过准RSF1.1,在ESCA中起到瘤抑制作用.
- 这个轴代表了食道癌症治疗的潜在治疗点.
相关概念视频
MicroRNAs
21.8K
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After...
21.8K
Abnormal Proliferation
4.6K
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...
4.6K
mTOR Signaling and Cancer Progression
3.9K
The mammalian target of rapamycin or mTOR protein was discovered in 1994 due to its direct interaction with rapamycin. The protein gets its name from a yeast homolog called TOR. The mTOR protein complex in mammalian cells plays a major role in balancing anabolic processes such as the synthesis of proteins, lipids, and nucleotides and catabolic processes, such as autophagy in response to environmental cues, such as availability of nutrients and growth factors.
The mTOR pathway or the...
The mTOR pathway or the...
3.9K
Experimental RNAi
6.3K
RNA interference (RNAi) is a cellular mechanism that inhibits gene expression by suppressing its transcription or activating the RNA degradation process. The mechanism was discovered by Andrew Fire and Craig Mello in 1998 in plants. Today, it is observed in almost all eukaryotes, including protozoa, flies, nematodes, insects, parasites, and mammals. This precise cellular mechanism of gene silencing has been developed into a technique that provides an efficient way to identify and determine the...
6.3K

