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与RNA结合的CRISPR屏幕显示ZNF207是LMNA异常拼接在孕症中的调节者

Amit K Behera¹, Jeongjin J Kim¹, Shreya Kordale¹

¹RNA Biology Laboratory, Center for Cancer Research (CCR), National Cancer Institute (NCI), National Institutes of Health (NIH), Frederick, MD 21702, USA.

|December 31, 2025

概括

我们开发了CRASP-seq,这是一种新的方法来识别替代拼接的调节者. 这种方法发现ZNF207是孕激素拼接的关键调节者,为拼接控制提供了新的见解.

科学领域:

分子生物学分子生物学
遗传学遗传学是一个
在RNA生物学,RNA生物学.

背景情况:

替代拼接调节对于基因表达至关重要,但对于大多数事件仍然不太了解.
现有的方法难以全面识别整个基因组的拼接调节器.

研究的目的:

开发和验证一种高通量方法,用于识别替代拼接的调节者.
发现替代拼接的新型调节剂,特别是与疾病相关的事件.

主要方法:

开发了CRASP-seq (基于CRISPR的替代拼接与表型测序的调节器的识别).
这种方法将聚合的CRISPR遗传扰乱与拼接记者深度测序相结合.
它允许从单个RNA样本对所有人类基因对替代拼接的影响进行定量评估.

主要成果:

CRASP-seq成功地确定了已知和新型拼接调节器,为RNA拼接和新陈代谢蛋白质进行了丰富.
对LMNA密码拼接事件在前列腺症中的分析确定ZNF207是前列腺素拼接的调节者.
ZNF207的枯竭改善了规范的LMNA拼接,并降低了患者细胞中的孕水平.
证明ZNF207的指域通过U1小核核核糖核蛋白 (snRNP) 相互作用影响了替代拼接.

结论:

CRASP-seq是发现替代拼接调节器及其机制的强大工具.
ZNF207作为U1 snRNP辅助因子,调节孕激素拼接并影响孕激素.
这些发现促进了对替代拼接控制及其在疾病中的作用的理解.

关键词:

这是一个BUGZZ.这就是CRASP-seqq.在 HGPS 系统中,哈森-吉尔福德预后综合征是什么?这是一个NMD.与RNA结合的CRISPR屏幕可以使用.在U1 snRNP.U1-70K/SNRNP70 U1-70K/SNRNP70 U1-70K/SNRNP70 U1-70K/SNRNP70 在ZNF207中,它是ZNF207.这是一种替代性的mRNA前拼接.无意义介导的mRNA衰变是无意义介导的在mRNA前进行处理.

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