B细胞激活因子诱导毛细胞白血病变体的耐药性
Claire Fritz1, Daniel Feinberg1, Akshaya Radhakrishnan2
1Department of Pathology, Case Western Reserve University, Cleveland, OH 44106, USA.
B细胞激活因子 (BAFF) 通过激活非经典核因子kappa B (NF-κB) 途径,促进毛细胞白血病变体 (HCL-v) 的化学抵抗. 阻断BAFF可能会改善抗HCL-v患者的纯氨酸核酸类比 (PNA) 治疗效果.
科学领域:
- 血液学 血液学 血液学
- 在瘤学瘤学.
- 免疫学 免疫学 免疫学
背景情况:
- 毛细胞白血病变体 (HCL-v) 对标准的纯氨酸核酸盐类比 (PNA) 疗法表现出化学抵抗.
- 毛状细胞白血病变体 (HCL-v) 是与经典毛状细胞白血病 (HCL-c) 截然不同的实体,它对PNAs敏感.
- 研究B细胞激活因子 (BAFF) 在HCL-v化学抵抗中的作用,对于开发有效的治疗方法至关重要.
研究的目的:
- 调查B细胞激活因子 (BAFF) 在促进HCL-v. 化学抵抗中的作用.
- 为了确定HCL-v细胞中BAFF激活的信号通路.
- 评估BAFF对HCL-v细胞对克拉迪宾敏感性的影响.
主要方法:
- 流细胞计和定量PCR测量BAFF及其受体.
- 西部涂抹用于分析BAFF激活的通路 (NF-κB,Erk,PI3K/AKT).
- 在患者衍生HCL-v细胞上进行RNA测序和体外治疗BAFF和克拉迪宾.
主要成果:
- HCL-v细胞表达BAFF受体,BAFF刺激激活非经典NF-κB通路.
- 在HCL-v细胞中,BAFF可以调节化学抵抗基因 (例如IL1,CXCL1/2,CXCL5,CXCL8,TRAF3,PTGS2) 的升级.
- 在体外,BAFF保护HCL-v细胞免受cladribine诱导的亡.
结论:
- BAFF通过激活非经典NF-κB信号传递和上调支持生存的基因来赋予HCL-v的化学电阻.
- BAFF在HCL-v化疗耐药性方面发挥着重要作用.
- 向BAFF可能会在耐药HCL-v患者中增强PNA化学敏感性.
更多相关视频
10:09Methods for Evaluating the Role of c-Fos and Dusp1 in Oncogene Dependence
Published on: January 7, 2019
11:06Genome-wide Analysis of HDAC Inhibitor-mediated Modulation of microRNAs and mRNAs in B Cells Induced to Undergo Class-switch DNA Recombination and Plasma Cell Differentiation
Published on: September 20, 2017
相关概念视频
B Cell Activation and Differentiation
When naive B cells encounter a specific antigen that can bind to the B cell receptor (BCR) on their surface, they undergo sensitization to respond to the antigen's presence. Sensitization begins with...
Treatment Resistant Cancers
Targeted Cancer Therapies
There are several types of targeted therapies against...
Regulation of Hematopoietic Stem Cells
Combination Therapies and Personalized Medicine
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...
T Cell Activation and Clonal Selection
Naive T cells that have not yet encountered an antigen express two primary CD...
