Circular RNA hsa_circ_0084054 promotes the progression of periodontitis with diabetes via the miR-508-3p/PTEN axis

Linlin He1,2, Chengcheng Liu1,2, Yiying Liu1,2

  • 1State Key Laboratory of Oral Diseases, & National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China.

Abstract

Insights

Circular RNA hsa_circ_0084054 exacerbates inflammation and oxidative stress in periodontitis with diabetes. It targets miR-508-3p to upregulate PTEN, promoting disease progression and potentially serving as a therapeutic target.

Area of Science:

  • Molecular Biology
  • Genetics
  • Endocrinology

Background:

  • Diabetes mellitus is a significant risk factor for periodontitis.
  • Circular RNAs (circRNAs) are implicated in inflammatory processes and disease progression.
  • The role of specific circRNAs, like hsa_circ_0084054, in the context of diabetes-associated periodontitis requires elucidation.

Purpose of the Study:

  • To investigate the role and underlying mechanism of the hsa_circ_0084054/miR-508-3p/PTEN axis in periodontitis progression associated with diabetes.
  • To identify potential molecular targets for therapeutic intervention.

Main Methods:

  • circRNA sequencing identified differentially expressed circRNAs in periodontal ligament cells (PDLCs) under high glucose and lipopolysaccharide (LPS) conditions.
  • In vitro and in vivo validation of hsa_circ_0084054 expression.
  • Bioinformatics analysis, dual luciferase reporter assays, and RIP assays elucidated the interaction network.
  • Assessment of cellular inflammation, oxidative stress, and apoptosis markers in PDLCs.

Main Results:

  • hsa_circ_0084054 was significantly upregulated in high glucose + LPS treated PDLCs and in PDL tissues from diabetic periodontitis patients.
  • Silencing hsa_circ_0084054 reduced inflammatory factors (IL-1β, IL-6, TNF-α), oxidative stress markers (ROS, MDA), and apoptosis, while enhancing SOD activity.
  • hsa_circ_0084054 acts as a sponge for miR-508-3p, leading to PTEN upregulation, inhibited AKT phosphorylation, and aggravated inflammation and oxidative stress.

Conclusions:

  • hsa_circ_0084054 plays a critical role in exacerbating inflammation and promoting the progression of periodontitis in diabetic patients.
  • The hsa_circ_0084054/miR-508-3p/PTEN signaling axis is a key mechanism driving disease pathogenesis.
  • hsa_circ_0084054 represents a promising novel therapeutic target for periodontitis associated with diabetes.

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