ArticleRenal failure2025
Proteomics reveals the key transcription-related factors mediating obstructive nephropathy in pediatric patients and mice.
Article in Renal failure, 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
backgroundObstructive nephropathy is one of the leading causes of kidney injury in infants and children. Increasing evidence has shown that transcription-related factors (TRFs), including transcription factors and cofactors, are associated with kidney diseases. However, a global landscape of dysregulated TRFs in pediatric patients with obstructive nephropathy is lacking.
methodsWe mined the data from our previous proteomic study for the TRF profile in pediatric patients with obstructive nephropathy and unilateral ureteral obstruction (UUO) mice. Gene ontology (GO) analysis was performed to determine pathways that were enriched in the dysregulated TRFs. We then took advantage of kidney samples from patients and UUO mice to verify the selected TRFs by immunoblots.
resultsThe proteomes identified a total of 140 human TRFs with 28 upregulated and 1 downregulated, and 160 murine TRFs with 88 upregulated and 1 downregulated (fold change >2 or <0.5). These dysregulated TRFs were enriched in the inflammatory signalings, such as janus kinase/signal transducer and activator of transcription (JAK-STAT) and tumor necrosis factor (TNF) pathways. Of note, the transforming growth factor (TGF)-β signaling pathway, which is the master regulator of organ fibrosis, was enriched in both patients and mice. Cross-species analysis showed 16 key TRFs that might mediate obstructive nephropathy in patients and UUO mice. Moreover, we verified a significant dysregulation of three previously unexplored TRFs; prohibitin (PHB), regulatory factor X 1 (RFX1), and activity-dependent neuroprotector homeobox protein (ADNP), in patients and mice.
conclusionsOur study uncovered key TRFs in the obstructed kidneys and provided additional molecular insights into obstructive nephropathy.
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