克隆性血液形成可能在几年之前诊断出无塑性贫血
Qian Wei Liu, Fang Fang1, Huiwen Xue2
1Karolinska Institutet, Stockholm, Sweden.
Blood advances
|November 26, 2025
概括
克隆性血液形成 (CH) 显著增加了无塑性贫血 (AA) 的风险. 在CH中,SRSF2,TET2,ASXL1和DNMT3A等特定突变与发展AA有很强的关联.
科学领域:
- 血液学 血液学 血液学
- 遗传学 遗传学 是一个
- 在瘤学瘤学.
背景情况:
- 无形性贫血 (AA) 是一种骨髓衰竭综合征,由血液形成干细胞的免疫破坏引起.
- 克隆性造血 (CH) 涉及突变的造血干细胞的扩张,通常与癌症有关.
- 在AA患者中存在很高的CH患病率,但直接的关联不清楚.
研究的目的:
- 调查克隆性血液形成 (CH) 与随后发展无塑性贫血 (AA) 的风险之间的关联.
- 为了确定特定的CH相关突变是否会影响AA的风险.
主要方法:
- 使用2006-2022年英国生物库数据进行了前性,匹配的队列研究.
- 通过整体外基因组测序识别了CH患者.
- 考克斯回归模型用于计算与对照组相比,CH患者的AA危险比率 (HRs).
主要成果:
- 患有CH的人患上AA的风险显著增加 (HR 2.72).
- 在SRSF2 (HR 19.35),TET2 (HR 4.45),ASXL1 (HR 2.06) 和DNMT3A (HR 1.88) 中CH突变的个体中,AA的风险显著增加.
结论:
- 克隆性血液形成可能会在诊断出无塑性贫血之前.
- 特定的CH突变,特别是SRSF2,TET2,ASXL1和DNMT3A,与AA的风险增加密切相关.
- 需要进一步的研究来阐明CH和AA之间的共享致病机制.
更多相关视频
06:39Use of Hematopoietic Stem Cell Transplantation to Assess the Origin of Myelodysplastic Syndrome
Published on: October 3, 2018
10.1K
09:32Clonal Analysis of Embryonic Hematopoietic Stem Cell Precursors Using Single Cell Index Sorting Combined with Endothelial Cell Niche Co-culture
Published on: May 8, 2018
8.9K
相关概念视频
Bone Marrow Sampling and Transplants
845
Bone marrow transplant is a potential cure for several diseases, including cancer and specific genetic disorders. Notably, this procedure is applicable for patients suffering from aplastic anemia, certain types of leukemia, severe combined immunodeficiency disease (SCID), Hodgkin's disease, non-Hodgkin's lymphoma, multiple myeloma, thalassemia, sickle-cell disease, and certain cancers.
The transplant begins with high doses of chemotherapy and radiation treatment, which aim to destroy...
The transplant begins with high doses of chemotherapy and radiation treatment, which aim to destroy...
845
Cells of the Adaptive Immune Response
8.4K
The T and B lymphocytes of the adaptive immune system develop from common lymphoid progenitor cells in the bone marrow. These progenitors give rise to precursors that eventually develop into both T and B lymphocytes. As these precursors mature, they gain the ability to detect and respond to foreign antigens in the body, a process known as immunocompetence. Additionally, these precursors acquire self-tolerance, a process that ensures they do not react to self-antigens. This intricate system...
8.4K
Lineage Commitment
4.1K
Commitment is the process whereby stem cells:
4.1K
Hematopoiesis
8.6K
The process of blood cell formation is called hematopoiesis. Hematopoiesis starts early during development, on the seventh day of embryogenesis. This phase of hematopoiesis is called the primitive wave, wherein the extraembryonic yolk sac allows the production of erythroid cells and endothelial cells from a common precursor called hemangioblast. The erythroid cells provide oxygen to support the growth of the rapidly dividing embryo. Hemangioblasts later develop into hematopoietic stem cells or...
8.6K
Tumor Progression
7.2K
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...
7.2K
Overview of Hematopoiesis
8.2K
Hematopoiesis, or blood cell production, is a vital biological process that begins early in embryonic development and continues throughout life. This process generates the various types of cells found in blood, including red blood cells, white blood cells, and platelets from hematopoietic stem cells (HSCs).
Developmental Phases of Hematopoiesis
Initially, HSCs are formed in the embryonic yolk sac, a critical site for early blood cell production. These stem cells subsequently migrate to other...
Developmental Phases of Hematopoiesis
Initially, HSCs are formed in the embryonic yolk sac, a critical site for early blood cell production. These stem cells subsequently migrate to other...
8.2K
