相关实验视频
Updated: Jun 25, 2025

11:42
Induction of Mesenchymal-Epithelial Transitions in Sarcoma Cells
Published on: April 7, 2017
9.4K
miR-497 血管肉瘤中的目标基因调控网络
Annaleigh Benton1,2, Noah M Moriarty2,3, Emma Terwilliger1,2
1Department of Biological Sciences, Purdue University, West Lafayette, Indiana.
Molecular cancer research : MCR
|May 21, 2024
概括
在侵袭性血管肉瘤中,microRNA-497-5p (miR-497) 显示出强大的瘤抑制作用. 过度表达miR-497抑制细胞活力,迁移和瘤形成,表明其治疗潜力.
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:
- 血管肉瘤是一种具有有限治疗选择的侵袭性血管癌.
- DICER1,对于微RNA (miRNA) 生物发生至关重要,与血管肉瘤的发展有关.
- 确定新的治疗点对于改善患者的治疗结果至关重要.
研究的目的:
- 研究微RNA-497-5p (miR-497) 在血管肉瘤中抑制瘤的作用.
- 阐明miR-497在血管肉瘤中的功能背后的分子机制.
- 为了确定血管瘤的潜在治疗漏洞.
主要方法:
- 在血管肉瘤细胞系中选抑制瘤的miRNAs.
- 过度表达miR-497和评估细胞活力,迁移和瘤形成.
- RNA测序,患者数据分析和目标预测,以确定miR-497的目标.
- 目标基因的直接调节的验证,包括增值税1.
主要成果:
- miR-497显著抑制了血管肉瘤细胞活力,迁移和瘤形成.
- miR-497直接调节关键基因:环林-D2,环林依赖性激酶6和囊泡氨基运输蛋白1 (VAT1).
- 药理上抑制VAT1使用新卡西林A降低了血管肉瘤细胞迁移.
结论:
- miR-497在血管肉瘤中表现出显著的瘤抑制特性.
- miR-497的治疗潜力需要进一步研究血管肉瘤治疗.
- 了解miR-497的调节网络,可以了解血管肉瘤的发病过程和潜在的治疗策略.
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
mTOR Signaling and Cancer Progression
3.8K
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...
3.8K
Regulation of Angiogenesis and Blood Supply
2.6K
Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits. Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl...
2.6K
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

