代谢依赖和神经前体调节障碍:儿童高度质瘤发展的驱动力
Yan Hay Grace Lee1,2, Maria Tsoli1,2, Yan Chuan Shi3,4
1Children's Cancer Institute at Minderoo Children's Comprehensive Cancer Centre, Sydney, NSW, Australia, Sydney, NSW, Australia.
Cancer metastasis reviews
|March 13, 2026
概括
儿科高度质瘤 (pHGGs) 是一种侵袭性的儿童大脑瘤. 了解它们的分子亚型,表观遗传变化和代谢脆弱性是开发针对性治疗这些致命疾病的关键.
科学领域:
- 儿科瘤学 儿科瘤学
- 神经瘤学神经瘤学
- 癌症表观遗传学 癌症表观遗传学
背景情况:
- 儿科高度质瘤 (pHGGs) 是最致命的儿科脑瘤.
- 2021年世卫组织分类定义了pHGGs的独特分子亚型,与成人质母细胞瘤不同.
- 有限的治疗选择和深刻的表观遗传失调是pHGGs的特征.
研究的目的:
- 根据2021年世卫组织框架审查pHGGs的分子分类.
- 检查瘤微环境和质瘤干细胞在pHGG进展和治疗抵抗中的作用.
- 探索代谢重编程及其与pHGGs表观遗传调节的相互作用.
主要方法:
- 文献综述综合了关于pHGG分子亚型,瘤微环境和质瘤干细胞的当前研究.
- 分析代谢变化,包括葡萄糖和脂质代谢,以及它们与表观遗传修饰的联系.
- 讨论临床前模型和新兴免疫疗法,如CAR T细胞疗法和瘤病毒.
主要成果:
- pHGGs包括不同的分子亚型 (H3K27-改变,H3G34-突变,婴儿类型,IDH-突变) 具有独特的生物学特征.
- 瘤干细胞表现出可塑性,并驱动瘤的启动,维护和治疗耐药性.
- 代谢重编程和表观遗传交叉 (例如,α-甲酸盐,2-甲酸盐) 在pHGG病变发生过程中至关重要.
结论:
- 针对特定亚型的代谢和表观遗传脆弱性对于有效的PHGG治疗至关重要.
- 对临床前模型和免疫疗法的进一步研究有望促进PHGG疗法的发展.
- 对PHGG生物学的更深入的理解对于开发新的,量身定制的治疗策略至关重要.
更多相关视频
12:52Isolation and Flow Cytometric Analysis of Glioma-infiltrating Peripheral Blood Mononuclear Cells
Published on: November 28, 2015
16.6K
07:39Co-culture of Glutamatergic Neurons and Pediatric High-Grade Glioma Cells Into Microfluidic Devices to Assess Electrical Interactions
Published on: November 17, 2021
4.1K
相关概念视频
Nature and Nurture
Many human characteristics, like height, are shaped by both nature—in other words, by our genes—and by nurture, or our environment. For example, chronic stress during childhood inhibits the production of growth hormones and consequently reduces bone growth and height. Scientists estimate that 70-90% of variation in height is due to genetic differences among individuals, and 10-30% of variation in height is due to differences in the environments that individuals experience, such as differences...
Tumor Progression
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...
Adaptive Mechanisms in Cancer Cells
Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Tumor Progression
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...
Adaptive Mechanisms in Cancer Cells
Cancer cells accumulate genetic changes at an abnormally rapid rate due to the defects in the DNA repair mechanisms. From an evolutionary perspective, such genetic instability is advantageous for cancer development. Mutant cell lines accumulate a series of beneficial mutations that contribute to their progression into cancer.
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Some of the advantages that cancer cells have on normal cells include - enhanced ability to divide without terminally differentiating, induce new blood vessel formation,...
Bulimia Nervosa
Bulimia nervosa is a complex and severe eating disorder characterized by a cyclical pattern of binge-and-purge eating pattern. It generally involves an episode of binge eating, followed by compensatory behaviors such as vomiting, excessive exercise, laxative use, or fasting, to prevent weight gain. Despite often maintaining a normal weight, individuals with bulimia are intensely preoccupied with their body image and harbor an overwhelming fear of gaining weight. This can contribute to the...
