米RNA对乳腺癌中Wnt相关基因活性的影响
Tomasz Sirek1,2, Agata Sirek3, Nikola Zmarzły3
1Department of Plastic Surgery, Faculty of Medicine, Academia of Silesia, Katowice, 40-555, Poland. drtskierka@gmail.com.
Scientific reports
|May 9, 2025
概括
这项研究确定了在波兰妇女中五种乳腺癌亚型中影响Wnt相关基因的特定微RNA (miRNA). 研究结果揭示了乳腺癌治疗的潜在miRNA点,包括与细胞周期和信号通路基因的关联.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
背景情况:
- 乳腺癌是全球女性癌症诊断的主要原因.
- Wnt信号通路在细胞生长和癌症发展中发挥着关键作用.
- 干扰Wnt通路与乳腺癌诱导和进展有关.
研究的目的:
- 在五种不同的乳腺癌亚型中,确定调节Wnt相关基因的微RNA (miRNA).
- 在波兰妇女队伍中研究这些miRNA-基因相互作用.
主要方法:
- 对Wnt相关基因的基因表达特征 (mRNA微阵列,RT-qPCR) 和蛋白质水平 (ELISA) 的分析.
- 使用miRNA微阵列和miRDB数据库进行miRNA分析.
- 研究包括5种乳腺癌亚型:光线A,HER2阳性光线B,HER2阴性光线B,非光线HER2阳性和三阴性乳腺癌 (TNBC).
主要成果:
- 减少miR-130a和miR-199a的活性与CCND1和GSK3B的过度表达相关.
- miR-2115的高活性与TCF7L2下调相关.
- 过度表达WNT5A与低MIR-497水平有关. 在亚型中观察到增加的APC,DVL3,LEF1和减少的FZD4,TCF7L1表达.
结论:
- 特定的miRNAs (miR-130a,miR-199a,miR-2115,miR-497) 在乳腺癌中的Wnt通路基因中显示出潜在的调节作用.
- 这些发现突出了针对各种乳腺癌亚型的潜在的基于miRNA的新型治疗点.
相关概念视频
MicroRNAs
2.9K
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 the pre-miRNA...
2.9K
Canonical Wnt Signaling Pathway
8.6K
The gene encoding the main signaling molecules of the Wnt signaling pathways (the Wnt proteins) was discovered almost four decades ago by Nüsslein-Volhard and Wieschaus. They identified and originally named the gene "wingless" (wg) after a phenotype discovered during their landmark genetic screen in Drosophila for body pattern defects. At around the same time, another researcher named Harold Varmus found that a murine tumor virus activates the mammalian wg homolog, Int-1, which...
8.6K
Non-Canonical Wnt Signaling Pathways
7.2K
Wnt is a zygotic effect gene that is expressed during very early embryonic development. It regulates various processes in animals starting from early development through the adult stage, such as organogenesis in the embryo and maintenance of neuronal and blood stem cells. Wnt proteins can induce a wide variety of intracellular pathways depending upon the specific abilities of different Wnt ligands to form a complex with shared and cognate receptors in the presence of different co-receptors. The...
7.2K
lncRNA - Long Non-coding RNAs
8.4K
In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA...
8.4K
mTOR Signaling and Cancer Progression
3.6K
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...
3.6K


