ArticleBreast cancer research : BCR2025
SENP5 drives breast cancer progression through deSUMOYlation of CDK1.
Article in Breast cancer research : BCR, 2025. 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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Abstract
backgroundBreast cancer (BRCA) remains a significant global health concern, with the need for novel therapeutic targets to improve patient outcomes. The role of the SENP family of de-SUMOylating enzymes in BRCA is not yet fully understood.
methodsThe expression and prognostic value of SENP family in BRCA were analyzed using the TCGA database. GSEA was conducted to identify correlations between SENP5 expression and cell cycle pathways. Experiments including Western blotting, RT-qPCR, CCK8 assays, colony formation assays, EdU staining, wound healing assays, and transwell assays were used to assess the impact of SENP5 knockdown on BRCA cell proliferation, migration, and invasion. Co-immunoprecipitation and fluorescence co-localization studies were employed to investigate the interaction between SENP5 and CDK1. The effects of combining SENP5 knockdown with CDK1 inhibition were evaluated in MDA-MB-231 xenograft mouse model.
resultsSENP5 was found to be overexpressed in BRCA and associated with poor prognosis. Knockdown of SENP5 significantly inhibited BRCA cell proliferation and migration. GSEA revealed a strong correlation between SENP5 and the cell cycle, particularly the G2M checkpoint and E2F target pathways. SENP5 was shown to promote cell cycle progression by upregulating CDK1. Mechanistically, SENP5 mediates the de-SUMOylation of CDK1, reducing its degradation via the ubiquitin-proteasome pathway and increasing CDK1 expression. In vivo, the combination of SENP5 knockdown and CDK1 inhibition significantly suppressed BRCA tumor growth.
conclusionOur research identifies the SENP5/CDK1 axis as a key player in BRCA progression, highlighting its potential as a therapeutic target.
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