ArticleMolecular and cellular biochemistry2022
CircPDE7B/miR-661 axis accelerates the progression of human keloid fibroblasts by upregulating fibroblast growth factor 2 (FGF2).
Article in Molecular and cellular biochemistry, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 11 citations in OpenAlex.
- Hsa_circ_0026782 Acts as a "Molecular Break" of CREB1-Mediated Transcription by Promoting Its Phosphorylation at Ser142 That Prevents Keloid Progression.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Computational Screening to Predict MicroRNA Targets in the Flavivirus 3' UTR Genome: An Approach for Antiviral Development.International journal of molecular sciences · 2024Article
- Article
- Characterization of the skin keloid microenvironment.Cell communication and signaling : CCS · 2023Review
- Coinfection of Dermal Fibroblasts by Human Cytomegalovirus and Human Herpesvirus 6 Can Boost the Expression of Fibrosis-Associated MicroRNAs.Microorganisms · 2023Article
- Circular RNAs: Emerging players in the pathogenesis of keloid.Frontiers in physiology · 2022Review
- The progress and challenges of circRNA for diabetic foot ulcers: A mini-review.Frontiers in endocrinology · 2022Review
- Keloid Patient Plasma-Derived Exosomal hsa_circ_0020792 Promotes Normal Skin Fibroblasts Proliferation, Migration, and Fibrogenesis via Modulating miR-193a-5p and Activating TGF-β1/Smad2/3 Signaling.Drug design, development and therapy · 2022Article
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Circular RNAs (circRNAs) are implicated in keloidogenesis and development. We aimed to investigate the role of a new identified phosphodiesterase 7B-derived circRNA (hsa_circ_0002198; henceforth named as PDE7B) in human keloid fibroblasts (HKFs) and to further confirm its mechanism via competing endogenous RNA (ceRNA) network. Transcriptional and translational levels of circPDE7B, microRNA (miR)-661, fibroblast growth factor 2 (FGF2), cleaved caspase3, B-cell lymphoma (bcl)-2, and bcl-2-associated X protein (bax) were detected by real-time quantitative PCR and western blotting. Relationship among circPDE7B, miR-661, and FGF2 was confirmed by bioinformatics algorithm, dual-luciferase reporter assay, RNA immunoprecipitation, RNA pull-down assay, and Spearman's rank correlation analysis. Cell progression was measured by cell counting kit-8 assay, 5-ethynyl-2-deoxyuridine assay, transwell assays, and flow cytometry. Expression of circPDE7B was upregulated in human keloid tissues and HKFs, accompanied with miR-661 downregulation and FGF2 upregulation. High circPDE7B accelerated proliferation, migration, and invasion, and inhibited apoptosis. These effects were paralleled with increased bcl-2 and decreased cleaved caspase3 and bax. Moreover, low circPDE7B played opposite effects to high circPDE7B. Restoring miR-661 could suppress HKFs progression, while blocking miR-661 could facilitate that. Notably, miR-661 was directly sponged by circPDE7B and then directly governed FGF2 gene expression. Deleting miR-661 and re-expressing FGF2 both abrogated the suppression of circPDE7B knockdown in HKFs progression. In conclusion, circPDE7B might contribute to HKFs progression via functioning as ceRNA for miR-661, suggesting a novel circPDE7B/miR-661/FGF2 pathway underlying keloid formation and treatment.
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