Evidence map›Paper›PMID 42138516›Full record

ArticleInvestigative ophthalmology & visual science2026

Inhibition of SGK1 Alleviates Apoptosis and Oxidative Stress in Dry Eye Disease by Activating FoxO3a-Mediated Autophagy.

Yun Tang, Zeying Chen, Jiaxuan Jiang, Di Zhang, Yiran Chu, Boda Li, Qi Zhang, Kai Hu

Abstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Yun TangDepartment of Ophthalmology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China.
Zeying ChenDepartment of Ophthalmology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China.
Jiaxuan JiangDepartment of Ophthalmology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China.
Di ZhangDepartment of Ophthalmology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
Yiran ChuDepartment of Ophthalmology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China.
Boda LiDepartment of Pharmacy, The People's Hospital of Jiang Men, Jiangmen, Guangdong, China.
Qi ZhangDepartment of Ophthalmology, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, China.
Kai HuDepartment of Ophthalmology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purpose: This study aimed to investigate the role of serum- and glucocorticoid-inducible kinase 1 (SGK1) in dry eye disease (DED) pathogenesis and its underlying molecular mechanisms. Methods: We established in vitro hyperosmotic models using human corneal epithelial cells (HCECs) and in vivo DED models induced by benzalkonium chloride in C57BL/6 mice. SGK1 was inhibited pharmacologically with GSK650394, and genetic knockdown of Forkhead box O3a (FoxO3a) was performed using small interfering RNA. Comprehensive assessments included western blot for apoptosis and autophagy markers, flow cytometry for apoptosis and reactive oxygen species (ROS) detection, mRFP-GFP-LC3 lentiviral transfection for autophagic flux monitoring, transmission electron microscopy for autophagic ultrastructure, co-immunoprecipitation for protein interactions, immunofluorescence staining for cellular localization, and histological examinations of ocular tissues. Results: SGK1 expression was significantly upregulated in both hyperosmotic-treated HCECs and the corneal epithelium of DED mice. SGK1 inhibition alleviated ocular surface damage, restored tear secretion, and reduced apoptosis and oxidative stress in vivo and in vitro. Mechanistically, SGK1 inhibition enhances autophagic flux by promoting FoxO3a nuclear translocation and activation, whereas FoxO3a knockdown abolishes the protective effects of SGK1 inhibition. Autophagy induction with rapamycin replicated the protective effects against DED-related damage. Conclusions: Inhibition of SGK1 alleviates apoptosis and oxidative stress in DED by activating FoxO3a-mediated autophagy. Our findings suggest that the SGK1/FoxO3a/autophagy axis may play a critical role in the pathogenesis of DED, and SGK1 may represent a potential therapeutic target for this condition.

Indexed as

ApoptosisAutophagyDry Eye SyndromesForkhead Box Protein O3Immediate-Early ProteinsOxidative StressProtein Serine-Threonine KinasesAnimalsBenzoatesBlotting, WesternBridged Bicyclo Compounds, HeterocyclicCells, CulturedDisease Models, AnimalEpithelium, CornealFlow CytometryHumans2-cyclopentyl-4-(5-phenyl-1H-pyrrolo(2,3-b)pyridin-3-yl)-benzoic acidBenzoatesBridged Bicyclo Compounds, HeterocyclicForkhead Box Protein O3FOXO3 protein, humanFoxO3 protein, mouseImmediate-Early ProteinsProtein Serine-Threonine KinasesReactive Oxygen SpeciesSerum-Glucocorticoid Regulated Kinases

Identifiers

PMID42138516
PMCPMC13189209

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Registered trials

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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 OpenQuestion graph.