前列腺癌的血统可塑性和治疗耐药性:遗传学,表观遗传学和进化学的交叉点
Jarrell Imamura1, Shinjini Ganguly1, Andrew Muskara1
1Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH, United States.
Frontiers in endocrinology
|July 17, 2023
概括
阴道抗性前列腺癌 (CRPC) 可以演变为神经内分泌前列腺癌 (NEPC),失去雄激素受体 (AR) 的依赖. 这种血统可塑性是由遗传和表观遗传变化驱动的,需要针对这些机制的新型治疗策略.
科学领域:
- 在瘤学瘤学.
- 分子生物学分子生物学
- 遗传学 遗传学 是一个
背景情况:
- 抗雄激素剥夺疗法是晚期前列腺癌的标准.
- 阴道抗性前列腺癌 (CRPC) 的发展导致死亡.
- 一些CRPC失去了雄激素受体 (AR) 的依赖性,转变为神经内分泌前列腺癌 (NEPC).
研究的目的:
- 探索前列腺癌中血统可塑性的遗传,表观遗传和荷尔蒙驱动因素.
- 了解转变为神经内分泌前列腺癌 (NEPC) 的机制.
- 为了确定AR无关性前列腺癌的潜在治疗点.
主要方法:
- 对遗传变化的审查 (例如,RB1,TP53,PTEN损失;MYCN,AURKA放大).
- 对表观遗传修饰的分析,包括DNA和基因组甲基化.
- 检查激素变化和AR信号通路的检查.
主要成果:
- RB1,TP53,PTEN的损失和MYCN,AURKA的放大是NEPC的关键驱动因素.
- 表观遗传变化,包括EZH2介导的调节,对于神经内分泌的分化至关重要.
- 依赖AR的抗性机制包括AR拼接变体和受体表达的改变.
结论:
- 前列腺癌血统的可塑性,特别是NEPC的发展,是由复杂的遗传,表观遗传和荷尔蒙变化驱动的.
- NEPC对内分泌疗法表现出耐药性,并且在使用较新的抗雄激素治疗后得到丰富.
- 针对这些可塑性机制为新型NEPC疗法提供了一个有希望的途径.
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