Circ_0081054通过海绵化miR-637和调节RAB9A促进黑色素瘤的发展
Xiaoqing Li1, Yinghui Kong1, He Li1
1Department of Dermatology, The Affiliated Huaian NO.1 People's Hospital of Nanjing Medical University, Huaian, China.
概括
循环RNAcirc_0081054通过调节miR-637/RAB9A轴来促进黑色素瘤的进展. 沉默circ_0081054抑制瘤生长,增殖和迁移,同时增强亡.
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:
- 异常循环RNA (circRNA) 表达与人类癌症有关.
- 许多circRNAs在癌症发展中的特定作用仍然不清楚.
- 这项研究研究了circ_0081054在黑色素瘤中的功能和机制.
研究的目的:
- 为了阐明circ_0081054在黑色素瘤中的功能作用.
- 为了研究circ_0081054在黑色素瘤进展中的潜在分子机制.
- 为了确定circ_0081054,miR-637和RAB9A在黑色素瘤中的关系.
主要方法:
- 定量实时聚合酶链反应 (qRT-PCR) 用于测量circ_0081054,microRNA-637 (miR-637) 和RAB9AmRNA的表达水平.
- 细胞计数工具-8和殖民地形成测试以评估细胞增殖.
- 伤口愈合试验,以评估细胞入侵和迁移.
主要成果:
- 在黑色素瘤组织和细胞中,circ_0081054被显著上调.
- 沉默circ_0081054抑制了黑色素瘤细胞的增殖,迁移,糖解和血管生成,同时促进了细胞亡.
- circ_0081054作为miR-637的海绵,miR-637针对RAB9A,形成circ_0081054/miR-637/RAB9A轴,促进恶性行为.
结论:
- circ_0081054促进黑色素瘤细胞的恶性行为.
- 该circ_0081054/miR-637/RAB9A分子轴是黑色素瘤进展的关键调节器.
- circ_0081054 缺陷阻碍了体内瘤的生长,表明其作为治疗点的潜力.
相关概念视频
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
MicroRNAs
3.1K
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...
3.1K
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
The Retinoblastoma Gene
4.1K
Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
4.1K
Rab Proteins
4.0K
Rab proteins constitute the largest family of monomeric GTPases, of which 70 members are present in humans. Rab proteins and their effectors regulate consecutive stages of vesicle transport such as vesicle transport, docking, and fusion to the correct recipient membrane.
Rab proteins switch between a cytosolic, GDP-bound inactive state and a membrane-anchored, GTP-bound active state. By themselves, Rabs show slow rates of GDP/GTP exchange and GTP hydrolysis. Thus, Rab proteins are considered...
Rab proteins switch between a cytosolic, GDP-bound inactive state and a membrane-anchored, GTP-bound active state. By themselves, Rabs show slow rates of GDP/GTP exchange and GTP hydrolysis. Thus, Rab proteins are considered...
4.0K
Induced Pluripotent Stem Cells
4.2K
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...
4.2K


