在慢性髓性白血病中,FABD域对BCR/ABL的瘤性至关重要
Renren Zheng1, Wei Wei1, Suotian Liu1
1Department of Clinical Hematology, Key Laboratory of Laboratory Medical Diagnostics Designated by Ministry of Education, School of Laboratory Medicine, Chongqing Medical University, Chongqing, China.
Cell communication and signaling : CCS
|June 7, 2024
概括
从BCR/ABL中删除F-actin结合域 (FABD) 会降低其促进癌症的能力,并增加细胞死亡. 这种FABD删除还减少了小鼠的白血病传播,为BCR/ABL的功能提供了新的见解.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
背景情况:
- 异常的BCR/ABL蛋白表达驱动慢性髓性白血病 (CML).
- BCR/ABL的F-actin结合域 (FABD) 对激酶活性至关重要,但其在CML中的作用尚不清楚.
研究的目的:
- 调查FABD在BCR/ABL中的功能.
- 确定FABD删除对BCR/ABL在CML发展和进展中的作用的影响.
主要方法:
- 构造的FABD缺陷和野生型BCR/ABL腺病毒载体.
- 感染的32D细胞和CML小鼠模型来评估增殖,亡,信号和细胞定位.
- 使用了CCK-8,殖民地形成试验,流细胞计,DAPI染色,西斑,免疫光和联合IP.
主要成果:
- 删除FABD削弱了BCR/ABL的扩散促进能力,并对下游信号进行了下调.
- FABD的损失导致BCR/ABL从细胞质转移到细胞核,通过p73上调增加了细胞亡.
- 没有FABD可以缓解小鼠中BCR/ABL诱导的白血病细胞透.
结论:
- 在体外和体内,FABD删除减少了BCR/ABL的致癌潜力.
- 这项研究阐明了FABD在BCR/ABL驱动的白血病发生中的关键作用.
相关概念视频
Abnormal Proliferation
4.5K
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...
4.5K
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
Targeted Cancer Therapies
7.5K
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
There are several types of targeted therapies against...
7.5K
Mitogens and the Cell Cycle
6.5K
Mitogens and their receptors play a crucial role in controlling the progression of the cell cycle. However, the loss of mitogenic control over cell division leads to tumor formation. Therefore, mitogens and mitogen receptors play an important role in cancer research. For instance, the epidermal growth factor (EGF) - a type of mitogen and its transmembrane receptor (EGFR), decides the fate of the cell's proliferation. When EGF binds to EGFR, a member of the ErbB family of tyrosine kinase...
6.5K
Diversity of Antigen Receptors
568
Antigen receptors are essential components of the immune system crucial in defending the body against foreign invaders. These receptors are present on the surface of B and T cells, enabling them to recognize antigens and mount an appropriate immune response.
Before encountering any antigen, lymphocytes express these receptors. On B cells, the antigen receptor is a membrane-bound antibody molecule called BCR; on T cells, it is a T cell receptor or TCR. B and T cell receptors are composed of two...
Before encountering any antigen, lymphocytes express these receptors. On B cells, the antigen receptor is a membrane-bound antibody molecule called BCR; on T cells, it is a T cell receptor or TCR. B and T cell receptors are composed of two...
568
Combination Therapies and Personalized Medicine
4.9K
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...
4.9K


