在神经母细胞瘤中TERT促进子突变的临床意义
Natasha Persaud1, Gunes Gundem2, Brian H Kushner1
1Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, NY.
JCO precision oncology
|July 10, 2025
概括
通过TERT促进子突变 (TERT-PM) 和TERT重组 (TERT-RA) 维持端粒与高危神经母细胞瘤有关. 通常与MYCN放大同时发生的TERT-PM可能表明超高风险的患者群体.
科学领域:
- 在瘤学瘤学.
- 遗传学 是一个遗传学.
- 分子生物学分子生物学
背景情况:
- 端粒维护对于癌细胞的不朽性至关重要.
- 机制包括MYCN放大 (MYCN-A),TERT重组 (TERT-RA) 和神经母细胞瘤中的ATRX突变 (NB).
- 激活体质TERT促进点突变 (TERT-PM) 是另一种可能影响NB分层的机制.
研究的目的:
- 在神经母细胞瘤中识别TERT-PM和TERT-RA.
- 描述与这些遗传变异相关的临床结果.
主要方法:
- 使用TERT-PM的目标下一代测序 (MSKCC-IMPACT) 进行瘤分析.
- 全基因组测序用于TERT-RA检测.
- 对相关临床数据和患者结果的分析.
主要成果:
- 在2.8% (17/603) 的NB瘤中检测到TERT-PM,在18.4% (31/168) 的NB瘤中检测到TERT-RA.
- TERT-PM经常与MYCN-A同时发生 (53%),而MYCN-A在TERT-RA中很少发生 (3%).
- TERT-PM和TERT-RA都与高风险神经母细胞瘤 (HR-NB) 和不良预后有关,TERT-RA显示总生存期 (OS) 显著更长,尽管中枢神经系统复发率更高.
结论:
- TERT-PM和TERT-RA都与HR-NB和预后不佳有关.
- TERT-PM比TERT-RA更为罕见.
- MYCN-A与TERT-PM的频繁同时发生表明潜在的超高风险子组需要不同的管理策略.
更多相关视频
09:33Author Spotlight: Finding New Therapeutic Targets for Malignant Peripheral Nerve Sheath Tumor Through Genome-Scale shRNA Screens
Published on: August 25, 2023
1.3K
08:57Author Spotlight: Genetically Engineered Mouse Models and Pathological Characterization of Neurofibromatosis Type 1 Associated Tumors
Published on: May 17, 2024
2.1K
相关概念视频
The Retinoblastoma Gene
4.2K
Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
4.2K
Cancer-Critical Genes II: Tumor Suppressor Genes
8.1K
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
8.1K
Abnormal Proliferation
4.6K
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...
4.6K
Loss of Tumor Suppressor Gene Functions
5.1K
Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
When the tumor suppressor genes develop mutations or are lost, cells start growing out of control, leading to cancer. However, a single functional copy of the tumor suppressor gene is enough for the cells to maintain their normal functions and cell...
When the tumor suppressor genes develop mutations or are lost, cells start growing out of control, leading to cancer. However, a single functional copy of the tumor suppressor gene is enough for the cells to maintain their normal functions and cell...
5.1K
Cancer-Critical Genes I: Proto-oncogenes
9.2K
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
9.2K
