氧化还原素,氨酸和激酶-A三合一维持髓性白血病
1Chester Medical School, University of Chester, Exton Park, Chester, United Kingdom; Department of Biochemistry, Cell and Systems Biology, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, United Kingdom.
Advances in cancer research
|September 21, 2024
概括
反应性氧物种 (ROS) 对于细胞信号传递至关重要,但可以推动髓性白血病的存活率. 了解ROS介导的激酶信号是开发针对这些癌症的向治疗的关键.
科学领域:
- 生物化学 生化学
- 细胞生物学 细胞生物学
- 在瘤学瘤学.
背景情况:
- 反应性氧物种 (ROS) 作为信号分子,调节细胞反应和平衡.
- 慢性高ROS水平会导致细胞损伤和疾病,包括白血病发生.
- 骨髓性白血病 (MLs) 通过激酶级联利用ROS生存.
研究的目的:
- 为了探索骨髓状癌的氧化还原系统和醇介导反应.
- 调查ROS在酶信号通路中的作用,与MLs相关.
- 为了澄清在ROS的背景下,控制细胞命运的信号开关.
主要方法:
- 氧化还原机制和硫醇介导反应的分析.
- 专注于骨髓癌中酶信号通路的研究.
- 在MLs中对NADPH氧化酶2 (NOX2) 和NOX4的研究的综述.
主要成果:
- ROS是细胞信号的组成部分,但失调有助于ML生存.
- 激酶级联,由ROS调节,在ML中提供生存优势.
- NOX2和NOX4与骨髓细胞和MLs中的ROS活性有关.
结论:
- 准ROS是MLs的一个有前途的治疗策略.
- 需要进一步了解ROS依赖信号,以定义治疗窗口.
- 阐明ROS介导信号开关对于有效的ML处理至关重要.
相关概念视频
Differentiation of Common Myeloid Progenitor Cells
3.2K
Common myeloid progenitors (CMPs) are oligopotent cells that can differentiate into granulocytes and macrophages. Granulocytes and macrophages are essential for protecting the body against bacterial, viral, or fungal infections. They migrate from the bone marrow into the circulating blood to reach specific tissue sites where they differentiate and help in immune surveillance. However, they survive only for a few days and must be continuously made available to the organism to maintain a robust...
3.2K
Role of Hematopoietic Growth Factors
1.3K
Hematopoietic growth factors are molecules that regulate the differentiation rate of hematopoietic stem cells (HSCs). Erythropoietin (EPO), primarily produced by the kidneys, plays a crucial role in erythrocyte production. When oxygen levels in the blood are low, EPO is released into the bloodstream, reaching the bone marrow, where it stimulates HSCs to differentiate and mature into erythrocytes, which are vital for oxygen transport.
Thrombopoietin (TPO), mainly released by the liver,...
Thrombopoietin (TPO), mainly released by the liver,...
1.3K
Regulation of Hematopoietic Stem Cells
3.2K
All blood and immune cells are produced from the multipotent hematopoietic stem cells (HSCs) by the process of hematopoiesis. However, they all have a limited life span. In addition, many are depleted in immune surveillance or combatting an injury or infection. This makes blood one of the most regenerative tissues. Hematopoiesis helps replenish these blood and immune cells, restoring the body's normal functioning. However, overproduction of blood and immune cells can make them cancerous or...
3.2K
Lineage Commitment
3.0K
Commitment is the process whereby stem cells:
3.0K
Electron Transport Chain: Complex I and II
12.2K
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...
12.2K
Cancer Stem Cells and Tumor Maintenance
4.9K
Early diagnosis and treatment can often cure cancer. However, even with treatment, residual cells called cancer stem cells (CSC) might remain, often causing tumor recurrence. These cancer stem cells possess the potential for self-renewal and multi-lineage differentiation and are often responsible for the therapeutic resistance displayed in most cancers.
Cancer stem cells are thought to originate from tissue-specific normal stem cells or progenitor cells. The normal stem cells usually reside in...
Cancer stem cells are thought to originate from tissue-specific normal stem cells or progenitor cells. The normal stem cells usually reside in...
4.9K


