相关实验视频
Updated: Jan 10, 2026

07:02
In Vivo Inhibition of MicroRNA to Decrease Tumor Growth in Mice
Published on: August 23, 2019
7.8K
通过CeRNA网络识别ITGA2作为甲基化调节的瘤基因,用于皮肤状甲状腺癌的皮肤状甲状腺癌
Guoliang Wu1, Xinyu Wang1, Yiming Zhu1
1Department of Head and Neck Surgical Oncology, National Cancer Center/ National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
Discover oncology
|November 25, 2025
概括
研究人员在乳头甲状腺癌 (PTC) 中确定了一种竞争的内源性RNA (ceRNA) 网络,并将整合素α2 (ITGA2) 确定为关键的治疗标. 与低甲基化相关的ITGA2过度表达驱动PTC进展.
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:
- 乳头甲状腺癌 (PTC) 是最常见的内分泌恶性瘤.
- 了解推动PTC的分子机制对于开发有效的治疗方法至关重要.
研究的目的:
- 在PTC中构建一个竞争的内源RNA (ceRNA) 网络.
- 识别和验证用于PTC治疗的新型分子标.
主要方法:
- 整合了来自GEO和TCGA数据库的基因表达数据,以构建一个ceRNA网络.
- 利用路径丰富分析来识别候选基因.
- 在PTC细胞系和临床标本中使用qRT-PCR,西斑和功能检测验证了基因表达和功能.
主要成果:
- 确定了160个潜在的ceRNA对,其中51个与甲基化有关.
- 确定了8个与瘤发生相关的基因,包括整合蛋白α2 (ITGA2).
- 在PTC中,ITGA2显著过度表达,其倒置抑制了扩散,入侵和转移. 促进物低甲基化与ITGA2上调相关.
结论:
- 在PTC中建立了一个新的ceRNA调节网络.
- 综合素α2 (ITGA2) 被确定为PTC的潜在治疗标.
- ITGA2失调与表观遗传改变有关,为PTC进展提供了洞察力.
相关概念视频
mTOR Signaling and Cancer Progression
4.6K
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...
4.6K
Master Transcription Regulators
7.7K
Master transcription regulators are regulatory proteins that are predominantly responsible for regulating the expression of multiple genes. Often these genes work in concert to drive a complex process. Activation of a master transcription regulator can lead to a cascade of transcriptional activation necessary for that outcome. These regulators can directly bind to the regulatory sequences of the various genes involved, or they can indirectly regulate transcription by binding to regulatory...
7.7K
Epigenetic Regulation
33.4K
Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
33.4K
Epigenetic Regulation
3.7K
Epigenetic changes alter the physical structure of the DNA without changing the genetic sequence and often regulate whether genes are turned on or off. This regulation ensures that each cell produces only proteins necessary for its function. For example, proteins that promote bone growth are not produced in muscle cells. Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
X-chromosome...
X-chromosome...
3.7K
The Retinoblastoma Gene
4.6K
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,...
4.6K
Abnormal Proliferation
5.1K
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...
5.1K

