Evidence map›Paper›PMID 42544926›Full record

ArticleAnnals of medicine2026

FGF8 alleviates LPS-induced acute lung injury

Liangtao Song, Xuehui Liu, Qin Fang, Kai Yu, Danni Zhuo, Bin He, Changxing Chi, Chaoyou Lin, Mengyi Lin, Fanghua Gong and 1 more

Abstract read
In one paragraph

Article in Annals of medicine, 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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4 · The record

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5 · Who and what money

Authors and funding

11 authors.

Liangtao SongDepartment of Thoracic Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.
Xuehui LiuSchool of Pharmacy, Wenzhou Medical University, Wenzhou, China.
Qin FangDepartment of Gynecology and Obstetrics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.
Kai YuSchool of Pharmacy, Wenzhou Medical University, Wenzhou, China.
Danni ZhuoSchool of Pharmacy, Wenzhou Medical University, Wenzhou, China.
Bin HeDepartment of Gynecology and Obstetrics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.
Changxing ChiSchool of Pharmacy, Wenzhou Medical University, Wenzhou, China.
Chaoyou LinSchool of Pharmacy, Wenzhou Medical University, Wenzhou, China.
Mengyi LinSchool of Pharmacy, Wenzhou Medical University, Wenzhou, China.
Fanghua GongSchool of Pharmacy, Wenzhou Medical University, Wenzhou, China.ORCID 0000-0002-8905-4894
Yu LiuDepartment of Thoracic Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAcute lung injury (ALI) and progressive acute respiratory distress syndrome (ARDS) have high mortality and limited effective therapies. Fibroblast growth factor 8 (FGF8) participates in lung development, inflammation and cell regulation, yet its function in ALI remains unclear.

methodsWe constructed an LPS-induced mouse ALI model to detect FGF8 expression. FGF8 haploinsufficiency and overexpression systems were used to explore its biological function. RNA-seq combined with GO and KEGG enrichment analyses screened target pathways, which were further verified via experiments. The PPARγ antagonist GW9662 was applied to confirm the regulatory role of PPARγ.

resultsLung FGF8 expression was significantly upregulated in LPS-challenged mice. FGF8 haploinsufficiency exacerbated weight loss, pulmonary edema, lung histological injury, pro-inflammatory cytokine (IL-1β, IL-6, TNF-α) release, and apoptosis imbalance. It also accelerated collagen accumulation and elevated profibrotic markers including α-SMA, TGF-β1 and COL1A1. Conversely, FGF8 overexpression relieved all these pathological phenotypes. Mechanistically, FGF8 haploinsufficiency inhibited PPARγ and activated ERK1/2 phosphorylation, while FGF8 overexpression reversed this change. Blocking PPARγ with GW9662 further boosted ERK1/2 activation and abolished the protective effects of FGF8 against ALI.

conclusionFGF8 alleviates inflammation, apoptosis and early pulmonary fibrosis in LPS-induced ALI mice via the PPARγ/ERK1/2 signaling pathway.

Indexed as

Acute Lung InjuryFibroblast Growth FactorsMAP Kinase Signaling SystemPPAR gammaAnilidesAnimalsApoptosisDisease Models, AnimalHaploinsufficiencyLipopolysaccharidesLungMaleMiceMice, Inbred C57BLSignal TransductionUp-Regulation2-chloro-5-nitrobenzanilideAnilidesFibroblast Growth FactorsLipopolysaccharidesPPAR gammaALIapoptosisFGF8fibrosisinflammationPPARγ/ERK1/2 signalling pathway

Identifiers

PMID42544926
PMCPMC13435286

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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.