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. 2024 May;30(4):2136-2149.
doi: 10.1111/odi.14655. Epub 2023 Jun 25.

miR-148a-3p regulates proliferation and apoptosis of idiopathic gingival fibroma by targeting NPTX1

Yuyang Sun  1   2   3 , Liangkun Xie  1 , Xiaobin Ren  1 , Liquan Ran  1 , Hongbing He  1 , Fanying Kong  1   2 , Shuran Yang  1   2 , Mingzhu Zhang  1
Affiliations

miR-148a-3p regulates proliferation and apoptosis of idiopathic gingival fibroma by targeting NPTX1

Yuyang Sun et al. Oral Dis. 2024 May.

Abstract

Objective: Idiopathic gingival fibromatosis (IGF) is a rare heterogeneous disease that results in the progressive and diffuse hyperplasia of gingival tissues. MicroRNAs are implicated in the development and progression of various tumors. The present study aimed to explore the potential roles and mechanisms of miR-148a-3p in IGF.

Methods: Gingival fibroblasts (GFs) were transfected with miR-148a-3p mimics, miR-148a-3p inhibitors, or siNPTX1, and then, the proliferation and apoptosis of GFs and the expression of related genes were evaluated using Cell Counting Kit-8 assays, 5-ethynyl-2'-deoxyuridine assays, flow cytometry, reverse transcription-quantitative polymerase chain reaction, and western blot analysis, respectively.

Results: miR-148a-3p was highly expressed in GFs of IGF (IGF-GFs) as compared with normal GFs (N-GFs). Overexpression of miR-148a-3p promoted the proliferation and inhibited the apoptosis of N-GFs, whereas downregulation of miR-148a-3p had the opposite effect in IGF-GFs. Knockdown of NPTX1 reversed miR-148a-3p-mediated effects in IGF-GFs. Dual-luciferase reporter assay confirmed that NPTX1 is a direct target of miR-148a-3p.

Conclusion: These findings identify that miR-148a-3p could regulate cell proliferation and apoptosis by targeting NPTX1, providing new insights for the further study of the molecular mechanism and treatment of IGF.

Keywords: NPTX1; apoptosis; idiopathic gingival fibromatosis; miR‐148a‐3p; proliferation.

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