在晚期和转移性前列腺癌中,DNA损伤反应和不匹配修复基因缺陷
Dilara Akhoundova1,2,3, Paola Francica1,4,3, Sven Rottenberg1,4,3
1Department for BioMedical Research.
Advances in anatomic pathology
|November 27, 2023
概括
在晚期前列腺癌 (PCa) 中发现了DNA损伤反应 (DDR) 基因变异,影响同源重组,Fanconi贫血和不匹配修复途径. 虽然一些DDR缺乏的PCa对PARP或免疫检查点抑制剂有反应,但许多非BRCA变化缺乏向治疗.
科学领域:
- 遗传学和基因组学 遗传学和基因组学
- 在瘤学瘤学.
- 分子生物学分子生物学
背景情况:
- 高达25%的晚期前列腺癌 (PCa) 显示DNA损伤反应 (DDR) 和相关基因的改变.
- 关键受影响的途径包括同源重组修复,Fanconi贫血和不匹配修复,导致各种DDR缺陷表型.
- 这些变化的很大一部分涉及非BRCA DDR基因.
研究的目的:
- 审查在晚期前列腺癌中DDR变化的景观.
- 讨论这些变化的治疗影响,特别关注向治疗.
- 为了确定当前的挑战和未来的方向在治疗DDR缺乏前列腺癌.
主要方法:
- 对调查前列腺癌中DDR基因变异的研究进行文献综述.
- 对针对DDR缺乏瘤的治疗方法的临床试验数据的分析.
- 综合各种向药物的疗效信息,包括PARP抑制剂,免疫检查点抑制剂和ATR抑制剂.
主要成果:
- 聚ADP-ribose聚合酶 (PARP) 抑制剂在患有BRCA1/BRCA2变异的前列腺癌中显示出有效性.
- 不匹配修复缺陷PCa和CDK12缺陷PCa的一个子集对免疫检查点抑制剂有反应.
- ATR抑制剂在PCa与ATM缺陷中显示出新兴的疗效.
结论:
- 虽然针对某些DDR缺乏的前列腺癌 (例如,BRCA突变的PARP抑制剂) 存在向疗法,但许多非BRCA DDR变异缺乏确定的治疗选择.
- 需要进一步的研究来澄清PCa中DDR变化的异质谱的治疗影响.
- 开发针对更广泛的DDR缺乏前列腺癌的新型向治疗方法仍然是一个关键的未满足需求.
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