NF-κB和PLAC8之间的相互作用损害了自,为由转换的前列腺细胞提供了生存优势
Vaibhav Shukla1, Ashish Tyagi1, Balaji Chandrasekaran1
1College of Pharmacy, Texas A&M University, College Station, TX, USA.
Science advances
|June 13, 2025
概括
暴露会通过破坏细胞死亡途径促进前列腺癌. 该研究确定NF-κB-PLAC8-BCL-xL信号轴是金属诱导前列腺癌的关键驱动因素和潜在治疗标.
科学领域:
- 在瘤学瘤学.
- 环境健康 环境健康
- 分子生物学分子生物学
背景情况:
- 前列腺癌风险是多因素的,重金属暴露,如 (Cd),是一个重要的环境风险因素.
- 自失调在致癌过程中越来越被认可,但其在金属诱导前列腺癌中的具体作用仍然不清楚.
研究的目的:
- 阐明诱导前列腺癌的分子机制,重点关注自调节基因PLAC8.8的作用.
- 在Cd诱导的前列腺癌的背景下,识别PLAC8的上游调节剂和下游作用因子.
- 评估针对已识别的信号通路的治疗潜力.
主要方法:
- 使用细胞培养和异种移植模型研究了PLAC8在Cd诱导的前列腺癌发生中的作用.
- 采用了基因沉默,西式涂抹,免疫光和向BCL-xL抑制等技术.
- 分析了NF-κB,PLAC8和BCL-xL在调节自和细胞存活中的相互作用.
主要成果:
- 暴露显著上调前列腺细胞中的PLAC8表达,由上游激活剂NF-κB介导.
- 通过防止 lysosomal 向,NF-κB 激活稳定了 PLAC8,从而导致其细胞质局部化和自的破坏.
- NF-κB-PLAC8轴通过对BCL-xL进行上调来促进细胞存活,从而促进Cd诱导的前列腺癌发生. 抑制NF-κB或PLAC8恢复了自和减少了瘤生长.
- 准BCL-xL验证了这一信号通路的重要性.
结论:
- 持续的NF-κB激活是诱导前列腺癌中PLAC8的关键调节者.
- NF-κB-PLAC8-BCL-xL信号轴代表了一种新的途径,在金属诱导的前列腺癌中驱动细胞存活和瘤进展.
- 这一轴为开发早期检测策略和与环境重金属暴露相关的前列腺癌的新疗法提供了一个有希望的目标.
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