ArticleiScience2026
SNW1 promotes lymphatic metastasis in bladder cancer by modulating SRPK1 splicing.
Article in iScience, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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12 authors.
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Abstract
The overall survival of patients with metastatic bladder cancer (BCa) remains poor. There is a lack of effective therapies and reliable biomarkers for metastatic BCa. BCa cells initially disseminate via the pelvic lymph nodes (LN). This study identified that elevated levels of SNW1 have been correlated with LN metastasis and unfavorable patient outcomes. SNW1 enhances the migratory and invasive capabilities of BCa cells. Further investigation revealed that SNW1 modulates SRPK1 splicing, resulting in opposite expression changes in two distinct SRPK1 transcripts. The effect of SNW1 on promoting metastasis is dependent on SRPK1 protein expression. Mechanistic investigations revealed that SNW1 interacts with core spliceosome components NUDT21 and CPSF6 to modulate SRPK1 splicing. This study underscores the pivotal contribution of RNA splicing in BCa metastasis, with SNW1 serving as a key mediator. The identification of key regulatory molecules provides valuable insights into potential therapeutic targets for clinical intervention in metastatic BCa.
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