Evidence map›Paper›PMID 42049976›Full record

ArticleCellular and molecular life sciences : CMLS2026

FOS drives podocyte injury and renal fibrosis in diabetic kidney disease via direct Smad3 binding.

Man Sun, Tianchi Yan, Wenjing Zhao, Zhifeng Cheng

Abstract read
In one paragraph

Article in Cellular and molecular life sciences : CMLS, 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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1 · What the graph read from it

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

4 authors.

Man SunThe Fourth Affiliated Hospital of Harbin Medical University, 37 Yiyuan Street, Harbin, 150001, China.
Tianchi YanThe Fourth Affiliated Hospital of Harbin Medical University, 37 Yiyuan Street, Harbin, 150001, China.
Wenjing ZhaoThe Fourth Affiliated Hospital of Harbin Medical University, 37 Yiyuan Street, Harbin, 150001, China.
Zhifeng ChengThe Fourth Affiliated Hospital of Harbin Medical University, 37 Yiyuan Street, Harbin, 150001, China. 002537@hrbmu.edu.cn.ORCID http://orcid.org/0000-0003-0230-9258

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionEpithelial-mesenchymal transition (EMT) plays a crucial role in diabetic kidney disease (DKD), particularly in the context of podocyte EMT. However, the regulatory networks controlling EMT activation in podocytes remain incompletely mapped. The FOS proto-oncogene (FOS) has emerged as a key player in EMT, yet its functional significance in DKD-podocytes remains poorly defined.

methodsThe predictive validity of FOS was confirmed through least absolute shrinkage and selection operator (LASSO) regression and multivariable logistic analysis in clinical data. A streptozotocin-induced DKD rat model was established, and podocyte cells (MPC5, HPC) treated with high glucose served as an in vitro model. The functional effect of FOS was explored using genetic interventions in vivo and in vitro.

resultsFOS expression is increased in patients with DKD, correlating with deterioration in renal function. LASSO and logistic analyses identified FOS as a robust predictor of DKD progression. FOS deficiency in vivo attenuated renal dysfunction and fibrosis. In podocytes, high glucose-primed FOS induced EMT and collagen accumulation, effects reversed by FOS knockdown. Crucially, FOS directly bound and activated Smad3, while Smad3 silencing abolished FOS-mediated injury.

conclusionThis study demonstrates that the FOS/Smad3 axis is a critical contributor to coordinating EMT and fibrosis in diabetic renal podocytes, proposing a novel therapeutic target in DKD.

Indexed as

Diabetic NephropathiesEpithelial-Mesenchymal TransitionKidneyPodocytesProto-Oncogene Proteins c-fosSmad3 ProteinAdultAgedAnimalsCell LineDiabetes Mellitus, ExperimentalFemaleFibrosisHumansMaleMiceFOS protein, humanProto-Oncogene Proteins c-fosSmad3 ProteinSMAD3 protein, humanStreptozocinDiabetic kidney diseaseEMTFibrosisFOSTGF-β/Smad3

Identifiers

PMID42049976
PMCPMC13190896

What Socratic holds

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LicenceCC BY-NC-ND
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.