LINC00520通过miRNA-195-3p / NAT2轴促进结直肠癌的进展
Haibin Liu1, Guochao Zhang2, Chaofeng Li3
1Department of Gastrointestinal Surgery, China-Japan Friendship Hospital, Beijing, China. dr_haibinliu1971@163.com.
概括
长非编码RNA LINC00520在结直肠癌 (CRC) 中表达高,并促进瘤的进展. 它通过microRNA-195-3p/NAT2通路调节细胞侵入性,建议LINC00520作为CRC的潜在治疗标.
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:
- 结肠直肠癌 (CRC) 仍然是全球癌症相关死亡的主要原因.
- 了解驱动CRC进展的分子机制对于开发有效疗法至关重要.
研究的目的:
- 研究长非编码RNA LINC00520在结直肠癌 (CRC) 进展中的作用.
- 阐明LINC00520影响CRC细胞行为的分子机制.
主要方法:
- 定量实时PCR (qRT-PCR) 用于评估CRC组织和细胞系中的LINC00520表达.
- 透过lentivirus介导的基因操纵,在CRC细胞中提高或降低LINC00520的调节.
- 穿孔和伤口愈合测试以评估细胞侵入性和迁移.
- 生物信息学分析和 luciferase 记者测定用于识别和确认LINC00520/microRNA-195-3p/NAT2轴内的调节性相互作用.
主要成果:
- 与相邻的正常组织相比,LINC00520表达在CRC组织和细胞系中显著升高.
- LINC00520 过度表达增强了CRC细胞的侵入性和迁移.
- 确定了一个调节轴,LINC00520与microRNA-195-3p相互作用,这反过来又针对NAT2.2.
- NAT2过度表达抵消了LINC00520沉默对细胞入侵和迁移的影响.
结论:
- 通过增强细胞侵入性和迁移,LINC00520在促进结直肠癌进展方面发挥着重要作用.
- LINC00520/microRNA-195-3p/NAT2轴是参与CRC病变发生的关键分子通路.
- LINC00520代表了结直肠癌的潜在诊断生物标志物和治疗点.
更多相关视频
10:33Molecular Profiling of the Invasive Tumor Microenvironment in a 3-Dimensional Model of Colorectal Cancer Cells and Ex vivo Fibroblasts
Published on: April 29, 2014
11.1K
08:12Detection of a Circulating MicroRNA Custom Panel in Patients with Metastatic Colorectal Cancer
Published on: March 14, 2019
5.5K
相关概念视频
MicroRNAs
3.0K
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...
3.0K
lncRNA - Long Non-coding RNAs
8.6K
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...
8.6K
Induced Pluripotent Stem Cells
4.0K
Stem cells are undifferentiated cells that divide and produce different cell types. Ordinarily, cells that have differentiated into a specific cell type are terminally differentiated; however, scientists have found a way to reprogram these mature cells so that they dedifferentiate and return to an unspecialized, proliferative state. These cells are pluripotent like embryonic stem cells—able to produce all cell types—and are called induced pluripotent stem cells (iPSCs).
Somatic...
Somatic...
4.0K
Abnormal Proliferation
4.5K
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...
4.5K
