西亚试剂：Transcriptome analysis of alternative splicing events regul

发布时间：2025-08-17

Transcriptome analysis of alternative splicing events regulated by SRSF10 reveals position-dependent splicing modulation.

Zhou X， Wu W， Li H， Cheng Y， Wei N， Zong J， Feng X， Xie Z， Chen D， Manley JL， Wang H， Feng Y.

Splicing factor SRSF10 is known to function as a sequence-specific splicing activator. Here， we used RNA-seq coupled with bioinformatics analysis to identify the extensive splicing network regulated by SRSF10 in chicken cells. We found that SRSF10 promoted both exon inclusion and exclusion. Motif analysis revealed that SRSF10 binding to cassette exons was associated with exon inclusion， whereas the binding of SRSF10 within downstream constitutive exons was associated with exon exclusion. This positional effect was further demonstrated by the mutagenesis of potential SRSF10 binding motifs in two minigene constructs. Functionally， many of SRSF10-verified alternative exons are linked to pathways of stress and apoptosis. Consistent with this observation， cells depleted of SRSF10 expression were far more susceptible to endoplasmic reticulum stress-induced apoptosis than control cells. Importantly， reconstituted SRSF10 in knockout cells recovered wild-type splicing patterns and considerably rescued the stress-related defects. Together， our results provide mechanistic insight into SRSF10-regulated alternative splicing events in vivo and demonstrate that SRSF10 plays a crucial role in cell survival under stress conditions.

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