相关实验视频
Updated: Jul 16, 2025

10:04
Enhancing Tumor Content through Tumor Macrodissection
Published on: February 12, 2022
10.1K
白血病呈现和MCD/C5扩散大B细胞淋巴瘤 (DLBCL) 的渐进性基因组变化
Patricia M Kim1,2, Reza Nejati1, Pin Lu1
1Department of Pathology, Fox Chase Cancer Center, Philadelphia, Pennsylvania 19111, USA.
Cold Spring Harbor molecular case studies
|September 20, 2023
概括
这项研究详细介绍了白血病形式扩散型大B细胞淋巴瘤 (DLBCL) 的独特案例. 研究人员确定了关键突变并跟踪了疾病的进展,揭示了这种侵袭性癌症中耐药性的机制.
科学领域:
- 血液学 血液学 血液学
- 在瘤学瘤学.
- 分子生物学分子生物学
背景情况:
- 扩散型大B细胞淋巴瘤 (DLBCL) 是一种异构的淋巴状恶性瘤.
- 根据基因表达,DLBCL被分为由生殖中心 (GC) 衍生的和激活的B细胞 (ABC) 类型.
- 分子进步进一步改进DLBCL分类,使用遗传异常.
研究的目的:
- 描述一个独特的DLBCL病例呈白血病形式.
- 为了对淋巴瘤进行深入的分子表征.
- 研究疾病进展和药物耐药性的机制.
主要方法:
- 275个基因的DNA测序.
- 高分辨率的染色体微阵列用于拷贝数量改变 (CNA).
- 复发性淋巴瘤细胞的体外研究.
主要成果:
- 在CD79B,MyD88,TP53,TBL1XR1和PIM1中发现了突变,将该病例归类为MCD/C5 DLBCL (ABC亚型).
- 观察到的复发与TP53失去了异性 (LOH),PRDM1损失,BTK和FOXO1突变,以及CNAs.
- 复发的细胞对易布鲁替尼和利图克桑有抗性,但对韦卡布鲁替尼有敏感性.
结论:
- 这项研究提供了对新型白血病DLBCL病例的全面分子见解.
- 鉴定了导致淋巴瘤进展和获得药物耐药性的遗传变化.
- 韦卡布鲁丁尼显示出对抗耐药DLBCL突变的潜力.
相关概念视频
Tumor Progression
6.4K
Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
6.4K
Disorders of Leukocytes
982
Leukocyte disorders can lead to either leukopenia, characterized by an abnormally low leukocyte count, or leukocytosis, marked by a very high leukocyte number.
Leukopenia may result from bone marrow disorders, autoimmune diseases, and infectious diseases. For example, conditions such as multiple myeloma and aplastic anemia can impair the bone marrow's ability to produce adequate leukocytes. Similarly, autoimmune diseases like lupus and viral infections such as HIV can prompt the immune...
Leukopenia may result from bone marrow disorders, autoimmune diseases, and infectious diseases. For example, conditions such as multiple myeloma and aplastic anemia can impair the bone marrow's ability to produce adequate leukocytes. Similarly, autoimmune diseases like lupus and viral infections such as HIV can prompt the immune...
982
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

