ArticleBMC molecular and cell biology2026
Dose-dependent effects of atorvastatin on inflammatory response in endothelial cells: MMP/TIMP balance and in vitro wound closure assay.
Article in BMC molecular and cell biology, 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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Abstract
backgroundClinical and preclinical evidence suggests that inflammation is closely associated with various arterial diseases. Multiple studies have reported the effects of statins on different cell types, yet the effects of atorvastatin (ATV) and its mechanisms on inflamed HUVECs' cellular responses are still under investigation. This study investigates how different doses of ATV affect inflammatory responses, extracellular matrix (ECM) regulators, and cell migration capacity assessed by an in vitro scratch wound closure assay in lipopolysaccharide (LPS) stimulated endothelial cells.
methodsATV was applied to cells at different doses (5-10-50 µM) with or without LPS (20 ng/mL). Cell proliferation and toxicity were investigated in the indicated groups. Then, the possible effects of ATV on MMP-2, MMP-9, TIMP-1,TIMP-2 expression levels, scratch-closure (cell migration) time were examined. Gene expression of MMP-2, MMP-9, TIMP-1, and TIMP-2 was quantified by qPCR, while protein levels were determined by Western blotting. Cell migration was evaluated using a scratch assay and real-time imaging system.
resultsHigh-dose ATV was more cytotoxic, while wound closure times showed a numerical increase that did not reach statistical significance under LPS stimulation. While low-dose ATV increased MMP and TIMP expressions, high-dose treatment reduced TIMP-1 and disturbed the MMP/TIMP balance. This imbalance was accompanied by reduced cellular recovery capacity under inflammatory stress.
conclusionsThis study highlights the complex cellular effects of ATV under inflammatory conditions, supporting its context- and dose-dependent role in endothelial cell behavior and matrix regulation. These findings highlight the importance of dosage optimization in therapeutic contexts targeting vascular inflammation and provide novel insight into how statin dosing influences endothelial recovery mechanisms, beyond cholesterol regulation.
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