ArticleMolecular medicine reports2024
Downregulation of microRNA‑221‑3p promotes angiogenesis of lipoprotein(a)‑injured endothelial progenitor cells by targeting silent information regulator 1 to activate the RAF/MEK/ERK signaling pathway.
Article in Molecular medicine reports, 2024. 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.
- The Wound-Heart Axis: Can Chronic Wounds Contribute to Cardiac Dysfunction?International journal of molecular sciences · 2026Review
- PCSK9 Inhibitors Increase CD34+ But Not Other Endothelial Progenitor Cells in Patients with Chronic Coronary Disease and Increased Lp(a) Values.TH open : companion journal to thrombosis and haemostasis · 2026Article
- Innovative Therapeutic Strategies for Myocardial Infarction Across Various Stages: Non-Coding RNA and Stem Cells.International journal of molecular sciences · 2024Review
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The present study aimed to investigate the role of microRNA (miR)‑221‑3p in endothelial progenitor cells (EPCs) treated with lipoprotein(a) [LP(a)]. EPCs were identified using immunofluorescence assays and miR‑221‑3p levels were measured using reverse transcription‑quantitative PCR. EPC migration was detected using Transwell assays, proliferation was measured by staining with 5‑ethynyl‑2'‑deoxyuridine and adhesion was assessed by microscopy. Flow cytometry was used to measure apoptosis and protein expression was detected using western blotting. A dual‑luciferase reporter assay was used to confirm the target interactions. The proliferation, migration, adhesion and angiogenesis of EPCs were decreased, and apoptosis was increased after treatment with LP(a). These effects were weakened by transfection with miR‑221‑3p inhibitor. The negative effects of LP(a) on EPCs were also weakened by overexpression of silent information regulator 1 (SIRT1). Inhibition of the RAF/MEK/ERK signaling pathway blocked the effects of SIRT1 overexpression. In conclusion, miR‑221‑3p inhibitor transfection activated the RAF/MEK/ERK signaling pathway through SIRT1, promoted the proliferation, migration, adhesion and angiogenesis of EPCs, and reduced apoptosis.
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