ArticleJCI insight2025
NSD1-916aa encoded by CircNSD1 contributes to AKI-to-CKD transition through inducing ferroptosis in tubular epithelial cells.
Article in JCI insight, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Renal Tubular Epithelial CRLF1 Interacts With ITGB1 to Accelerate Fibrosis During the Transition From AKI to CKD.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Pharmacologic disruption of HuR-RNA interactions prevents maladaptive tubular repair and AKI-to-CKD progression.American journal of physiology. Renal physiology · 2026Article
- Translational potential of GADD45α: biomarker and therapeutic target in age-associated neurodegeneration and longevity.Biogerontology · 2025Review
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Authors and funding
11 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Acute kidney injury (AKI) is characterized by a rapid decline in renal function. In severe or recurrent cases, AKI can progress to chronic kidney disease (CKD), marked by renal inflammation and fibrosis. Despite the severity of these outcomes, early-stage diagnostic tools and pharmacological interventions for AKI-to-CKD progression remain limited. In this study, we examined circular RNA (circRNA) expression profiles in mouse renal cortex tissues 14 days after ischemia/reperfusion (I/R) injury using circRNA-Seq. The renal biopsy samples of patients after AKI exhibited reduced CircNSD1 expression, which was inversely associated with inflammation and fibrosis. Overexpression of CircNSD1 attenuated ferroptosis in vivo and in vitro, while slowing AKI-to-CKD progression. Mechanistically, CircNSD1 downregulated ACSL4 and SLC39A14 expression through histone H3 lysine 36 (H3K36) methylation, a critical pathway regulating ferroptosis after AKI or hypoxia/reoxygenation (H/R) injury. Furthermore, we identified that CircNSD1 encoded a NSD1-916aa peptide, which may functionally contribute to its observed effect. Collectively, these findings demonstrated that CircNSD1 may serve as a diagnostic and therapeutic target for early detection of AKI-to-CKD transition.
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