在分子完全缓解期间发生在NPM1-突变AML中的ET:复杂疾病的进一步潜在演变
Diego Bertoli1, Carlotta Giupponi1,2, Giuseppe Rossi2
1Highly Specialized Laboratory, ASST Spedali Civili di Brescia, Brescia, Italy.
British journal of haematology
|November 18, 2025
概括
一些患有NPM1突变的急性髓性白血病患者在缓解后可能会发展至关重要的血小板血. 骨髓中的JAK2V617F突变可能会增加这种风险.
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:
- 核素1 (NPM1) 突变在急性髓性白血病 (AML) 中很常见.
- 获得分子缓解的NPM1突变AML患者仍然可以面临疾病演变.
- 基本血栓细胞性病 (ET) 是一种可以在特定情况下出现的骨髓增殖性瘤.
研究的目的:
- 在实现缓解后,研究NPM1-突变性急性髓性白血病 (AML) 患者中基本血小板血 (ET) 的潜在演变.
- 确定可能使NPM1-突变AML患者易患ET的因素.
主要方法:
- 分析患者数据,以检测疾病缓解后的演变.
- 在持久的造血细胞中检测特定突变,包括JAK2V617F.
主要成果:
- 大约3%的NPM1-突变AML患者实现了分子缓解的ET.
- 在NPM1突变的AML的克隆性造血背景中存在JAK2V617F突变与ET发展的风险增加有关.
结论:
- 缓解期的NPM1突变AML患者有发展ET的风险.
- JAK2V617F突变是有利于该患者群体中ET发展的关键因素.
相关概念视频
Mismatch Repair
6.3K
Organisms are capable of detecting and fixing nucleotide mismatches that occur during DNA replication. This sophisticated process requires identifying the new strand and replacing the erroneous bases with correct nucleotides. Mismatch repair is coordinated by many proteins in both prokaryotes and eukaryotes.
The Mutator Protein Family Plays a Key Role in DNA Mismatch Repair
The human genome has more than 3 billion base pairs of DNA per cell. Prior to cell division, that vast amount of genetic...
The Mutator Protein Family Plays a Key Role in DNA Mismatch Repair
The human genome has more than 3 billion base pairs of DNA per cell. Prior to cell division, that vast amount of genetic...
6.3K
Mismatch Repair
43.5K
Overview
43.5K
Mutations
42.6K
Mutations are changes in the sequence of DNA. These changes can occur spontaneously or they can be induced by exposure to environmental factors. Mutations can be characterized in a number of different ways: whether and how they alter the amino acid sequence of the protein, whether they occur over a small or large area of DNA, and whether they occur in somatic cells or germline cells.
Chromosomal Alterations Are Large-Scale Mutations
While point mutations are changes in a single nucleotide in...
Chromosomal Alterations Are Large-Scale Mutations
While point mutations are changes in a single nucleotide in...
42.6K
Mutations
94.3K
Overview
94.3K
Spontaneous and Induced Mutations
2.0K
Spontaneous mutations arise infrequently during DNA replication due to errors in the process. A key factor behind these errors is tautomeric shifts in nitrogenous bases, where bases transition from keto to enol forms or amino to imino forms. This shift can alter base-pairing rules, leading to mutations. Additionally, reactive oxygen species (ROS) arising from aerobic metabolism can damage DNA, resulting in depurination (loss of a purine base) or depyrimidination (loss of a pyrimidine base).
2.0K
Conservative Site-specific Recombination and Phase Variation
6.6K
Because the DNA segments are cut and reorganized in a direction-specific manner, site-specific recombination has emerged as an efficient genetic engineering technique. Flippase and Cyclization recombinases or Flp and Cre, respectively, are two members of the tyrosine recombinase family derived from bacteriophages, that are used to mediate site-specific DNA insertions, deletions, and targeted expression of proteins in mammalian cell lines.
The recognition sites for Cre recombinase called LoxP...
The recognition sites for Cre recombinase called LoxP...
6.6K


