通过向E2F3的目标,米R-363抑制了结直肠癌细胞的增殖,迁移和入侵
Wenyu Yang1, Xiqian Yang1, Yang Zhang1
1Clinical College of Chinese Medicine, Hubei University of Chinese Medicine, Wuhan 430061, China.
Journal of Cancer
|June 7, 2023
概括
微RNA 363 (miR-363) 通过抑制E2F3基因来抑制结直肠癌 (CRC) 的生长. 这一发现揭示了针对CRC进展的新机制,并提供了潜在的治疗策略.
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:
- 微RNAs (miRNAs) 在癌症的发展中起着至关重要的作用,包括结直肠癌 (CRC).
- 微RNAs影响CRC瘤发生的特定机制需要进一步阐明.
- miR-363已与癌症有关,但其在CRC中的确切作用尚未完全理解.
研究的目的:
- 为了研究miR-363在结直肠癌中的功能.
- 在CRC细胞中识别miR-363的分子标.
- 为了确定在CRC中准miR-363/E2F3轴的治疗潜力.
主要方法:
- 定量实时PCR (RT-PCR) 用于测量miR-363的表达.
- 细胞增殖试验 (CCK-8),伤口愈合试验和细胞入侵试验,以评估细胞行为.
- 西方涂抹和 luciferase 记者测定以确认目标基因相互作用.
- E2F3敲击实验验验证了miR-363的调节作用.
主要成果:
- 发现miR-363表达与CRC细胞系中的E2F3表达相反相关 (HCT-116,SW480).
- 路西法酶记者测定证实E2F3是miR-363.3的直接标基因.
- 过度表达miR-363或抑制E2F3显著抑制了CRC细胞的增殖,迁移和入侵.
- 在体内研究表明,miR-363抑制瘤生长.
结论:
- miR-363在结肠直肠癌中起到瘤抑制作用.
- miR-363通过负面调节其目标基因E2F3.3来抑制CRC细胞的增殖,迁移和入侵.
- 在结直肠癌治疗中,miR-363/E2F3通路是潜在的治疗标.
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
Mitogens and the Cell Cycle
6.6K
Mitogens and their receptors play a crucial role in controlling the progression of the cell cycle. However, the loss of mitogenic control over cell division leads to tumor formation. Therefore, mitogens and mitogen receptors play an important role in cancer research. For instance, the epidermal growth factor (EGF) - a type of mitogen and its transmembrane receptor (EGFR), decides the fate of the cell's proliferation. When EGF binds to EGFR, a member of the ErbB family of tyrosine kinase...
6.6K
Role of Ephrin-Eph Signalling in Intestinal Stem Cell Renewal
2.3K
Erythropoietin-producing hepatocellular carcinoma receptor (Eph) and its ligand, Eph receptor-interacting protein (Ephrin) were first discovered in the human carcinoma cell line, hence the name. Ephrin-Eph interaction guides cells to reach their appropriate location in adult tissues. They also play an essential role in the immune system by helping in immune cell migration, adhesion, and activation. Based on their structure and function, Eph is divided into two classes — EphA and EphB.
2.3K
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


