ARF (CARF) 的协作者的酸化依赖稳定抑制了淋巴瘤细胞的增殖
Li Qu1, Zhuang Wei2, Shuting Zhou1
1Joint Center for Single Cell Biology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China.
概括
改变ARF协作物 (CARF) 和植物基普相关蛋白6 (KRP6) 的酸化抑制了淋巴瘤细胞的增殖. 这表明针对这些蛋白质上的酸化位点进行精确的癌症治疗.
科学领域:
- 分子生物学分子生物学
- 在瘤学瘤学.
- 生物化学 生物化学
背景情况:
- 无法控制的细胞增殖驱动癌症,使细胞循环调节成为关键的治疗策略.
- 蛋白质的酸化对于癌症的发病,转移和进展至关重要.
- 识别关键酸化部位对于开发向癌症疗法至关重要.
研究的目的:
- 调查ARF (CARF) 合作者在淋巴瘤预后和生存中的作用.
- 探索CARF和植物基普相关蛋白6 (KRP6) 中保存酸化位在细胞循环调节中的功能.
- 评估针对B细胞淋巴瘤中CARF酸化的治疗潜力.
主要方法:
- 全癌症分析以评估CARF与淋巴瘤患者预后的关联.
- 哺乳动物CARF和植物KRP6的比较分析,包括酸化位点的识别.
- 使用B细胞淋巴瘤细胞系的体外试验和使用老鼠异种移植模型的体内研究来评估CARF变体.
主要成果:
- 在淋巴瘤患者中,CARF与预后和生存率密切相关.
- 在CARF中316和356系列的保存酸化位,类似于KRP6系列75和109,调节其功能.
- 与野生型CARF相比,一种非酸化的CARF变体显著抑制了B细胞淋巴瘤细胞的增殖和瘤形成.
结论:
- 在CARF中保存位置的酸化批判性地调节了B细胞淋巴瘤细胞的增殖.
- 向CARF的酸化为精确的淋巴瘤治疗提供了一个有希望的策略.
- 这些发现表明,酸化修饰蛋白在癌症治疗中具有潜在的跨物种生物工程应用.
更多相关视频
08:38Phospho Flow Cytometry with Fluorescent Cell Barcoding for Single Cell Signaling Analysis and Biomarker Discovery
Published on: October 4, 2018
21.4K
06:44Author Spotlight: Integrating BRET-Based Assays and Rare Mutation Analysis to Decipher RAF Kinase Regulation in Live Cells
Published on: March 1, 2024
1.2K
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
PI3K/mTOR/AKT Signaling Pathway
4.0K
The mammalian target of rapamycin (mTOR) is a serine/threonine kinase that regulates growth, proliferation, and cell survival in response to hormones, growth factors, or nutrient availability. This kinase exists in two structurally and functionally distinct forms: mTOR complex 1 (mTORC1) and mTOR complex 2 (mTORC2). The first form (mTORC1) is composed of a rapamycin-sensitive Raptor and proline-rich Akt substrate, PRAS40. In contrast, mTORC2 consists of a...
4.0K
DNA Damage can Stall the Cell Cycle
9.3K
In response to DNA damage, cells can pause the cell cycle to assess and repair the breaks. However, the cell must check the DNA at certain critical stages during the cell cycle. If the cell cycle pauses before DNA replication, the cells will contain twice the amount of DNA. On the other hand, if cells arrest after DNA replication but before mitosis, they will contain four times the normal amount of DNA. With a host of specialized proteins at their disposal,cells must use the right protein at...
9.3K
Negative Regulator Molecules
36.1K
Positive regulators allow a cell to advance through cell cycle checkpoints. Negative regulators have an equally important role as they terminate a cell’s progression through the cell cycle—or pause it—until the cell meets specific criteria.
36.1K
Anaphase Promoting Complex
3.0K
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...
3.0K
Interactions Between Signaling Pathways
6.5K
Signaling cascades usually lack linearity. Multiple pathways interact and regulate one another, allowing cells to integrate and respond to diverse environmental stimuli.
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
Convergence and divergence, and cross-talk between signaling pathways
Two distinct signaling pathways can converge on a single functional unit, which may either be a single protein or a complex of proteins. The response is either functionally distinct or synergistic between the two pathways but different from the response...
6.5K
