CRTC2促进AML的进展,并调解线粒体驱动的维内托克拉克斯抵抗
Xiaomei Liang1,2, Yilu Zheng1,2, Bangxue Jiang1,2
1Department of Hematology, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, China.
概括
通过增加线粒体活动,CRTC2促进急性髓性白血病 (AML) 的进展和维尼托克拉克斯 (VEN) 耐药性. 抑制CRTC2使AML细胞对VEN敏感,提供了一个新的治疗策略.
科学领域:
- 血液学恶性瘤是什么
- 癌症生物学 癌症生物学
- 分子瘤学分子瘤学
背景情况:
- 急性髓性白血病 (AML) 是一种血液癌症,治疗选择有限.
- 威尼托克拉克斯 (VEN) 改善了结果,但耐药性仍然是一个挑战.
- 确定新的治疗点对于克服AML治疗耐药性至关重要.
研究的目的:
- 调查CRTC2在AML病原和维内托克拉克斯 (VEN) 耐药性中的作用.
- 探索CRTC2作为AML的潜在治疗点.
- 阐明CRTC2介导的VEN耐药性背后的分子机制.
主要方法:
- 集成的ChIP-seq和数据库分析以确定CRTC2.
- qRT-PCR,敲击和过度表达研究来评估CRTC2功能.
- 细胞系衍生异种移植 (CDX) 模型,线粒体检测和临床样本分析.
主要成果:
- 增加CRTC2表达与AML患者的预后不佳和VEN耐药性相关.
- 通过CRTC2 Knockdown,可以延缓AML的进展,并提高VEN的敏感性.
- 抑制CRTC2可以降低线粒体活动,克服VEN抵抗.
结论:
- CRTC2是AML进展和VEN耐药性的关键调节者.
- 针对CRTC2提供了一个有希望的策略,以改善AML治疗结果.
- 通过调节线粒体功能,CRTC2抑制使AML细胞对VEN敏感.
相关概念视频
Treatment Resistant Cancers
3.7K
Cancer is the second leading cause of death in the United States. A cancer cell is genetically unstable and hence can mutate faster. They can also modify their microenvironment and escape immune surveillance. The difficulties in treating cancer are further compounded by the emergence of rapid resistance to anticancer drugs. The most common ways to attain resistance in cancer cells include alteration in drug transport and metabolism, modification of drug target, elevated DNA damage response, or...
3.7K
Electron Transport Chain: Complex I and II
18.4K
The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
ROS generation is regulated and maintained at moderate levels necessary...
ROS generation is regulated and maintained at moderate levels necessary...
18.4K
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
Anaphase Promoting Complex
3.3K
The stepwise destruction of specific proteins is necessary for the progression and completion of the cell cycle. Such proteins are ubiquitinated by ubiquitin ligases and then subsequently destroyed by the proteasome. The SCF (Skp1/Cullin/F-box) and the anaphase-promoting complex (APC) are two important ubiquitin ligases involved in cell cycle progression. While SCF is active throughout the cell cycle, APC gets activated during metaphase to anaphase transition. Cdc20 or Cdh1 binds to APC and...
3.3K
Combination Therapies and Personalized Medicine
5.9K
Combining two or more treatment methods increases the life span of cancer patients while reducing damage to vital organs or tissue from the overuse of a single treatment. Combination therapy also targets different cancer-inducing pathways, thus reducing the chances of developing resistance to treatment.
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
5.9K
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


