一种来自tRNA-Glu/TTC的新型tRF,HCETSR,通过调节SPBTN1-catenin复杂轴来抑制HCC恶性病变
Tao Rui1,2, Kangbei Zhu1, Zonglei Mao1
1Department of Surgery, Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, Hangzhou, 310003, China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|February 8, 2025
概括
在肝细胞癌 (HCC) 中,tRNA衍生片段HCETSR被下调,抑制恶性瘤. 这种来自tRNA-Glu/TTC的新型生物标志物调节SPTBN1/catenin轴,为HCC提供潜在的预后标志物和治疗策略.
科学领域:
- 分子生物学分子生物学
- 在瘤学瘤学.
- 在RNA生物学,RNA生物学.
背景情况:
- tRNA衍生碎片 (tRFs) 是参与瘤调节的小型非编码RNA.
- HCETSR是一种特定的tRF,在肝细胞癌 (HCC) 中显著下调.
- 低HCETSR水平与晚期瘤负担和HCC死亡率增加相关.
研究的目的:
- 调查HCETSR在HCC恶性瘤中的作用.
- 阐明HCETSR在HCC中的功能背后的分子机制.
- 评估HCETSR作为HCC的预后标志物.
主要方法:
- 在HCC模型中对HCETSR的功能分析.
- 对SPTBN1/catenin复合体轴的研究.
- 对HCETSR生物发生路径的分析,涉及到spliceosome和Dicer1.
主要成果:
- HCETSR抑制了HCC恶性瘤,并预测了不良的预后.
- HCETSR破坏了SPTBN1/catenin复合体,影响了catenin的局部化.
- HCETSR降低了β-catenin的蛋白质体降解,并抑制了LEF1的转录活性.
- HCETSR是由tRNA-Glu/TTC衍生而来的,其生物发生由结合体和Dicer1.1调节.
结论:
- 来自tRNA-Glu/TTC的HCETSR通过调节SPTBN1/catenin轴来抑制HCC恶性病变.
- HCETSR作为HCC的潜在预后标志物.
- 准HCETSR可能为HCC提供一种新的治疗策略.
更多相关视频
11:34A Competent Hepatocyte Model Examining Hepatitis B Virus Entry through Sodium Taurocholate Cotransporting Polypeptide as a Therapeutic Target
Published on: May 10, 2022
2.1K
10:26Biotinylated Cell-penetrating Peptides to Study Intracellular Protein-protein Interactions
Published on: December 20, 2017
9.4K
相关概念视频
Catenins
2.3K
Catenins are characterized by multiple binding domains and dynamic structures that allow them to function as linker proteins in cell junction complexes. All catenins, except α-catenin, contain a characteristic protein sequence called the armadillo repeat and are therefore also called armadillo proteins.
Catenins in Cell Junctions
Catenins bind to cell adhesion molecules such as cadherins and link them to different cytoskeletal proteins depending on the type of cell junction. At the...
Catenins in Cell Junctions
Catenins bind to cell adhesion molecules such as cadherins and link them to different cytoskeletal proteins depending on the type of cell junction. At the...
2.3K
lncRNA - Long Non-coding RNAs
8.5K
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...
8.5K
Targeted Cancer Therapies
7.4K
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
There are several types of targeted therapies against...
7.4K
Metastasis
5.5K
Metastasis is the spread of cancer cells from the original site to distant locations in the body. Cancer cells can spread via blood vessels (hematogenous) as well as lymph vessels in the body.
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
Epithelial-to-Mesenchymal Transition
The epithelial-to-mesenchymal transition or EMT is a developmental process commonly observed in wound healing, embryogenesis, and cancer metastasis. EMT is induced by transforming growth factor-beta (TGF-β) or receptor tyrosine kinase (RTK) ligands, which further...
5.5K
Cadherins in Tissue Organization
2.9K
The cadherins are a superfamily of cell adhesion molecules comprising over 180 variants, with specific tissues expressing a particular combination of cadherin types. Cadherins generally exhibit homophilic binding; i.e., cadherins on one cell bind to cadherins of the same or closely related type on another cell. Thus, cells of the same type have a specific affinity to bind to each other and sort themselves into clusters to form tissues.
Cell Sorting During Development
Cell sorting plays an...
Cell Sorting During Development
Cell sorting plays an...
2.9K
Canonical Wnt Signaling Pathway
8.7K
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...
8.7K
