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Transcriptomic Analysis to Elucidate Key miRNAs and Signaling Pathways Involved in the Promotion of Periodontitis by Hypertension

ABSTRACT: To identify key miRNAs that promote the progression of periodontitis in the context of hy-pertension through high-throughput sequencing, rat models of periodontitis and periodontitis combined with hypertension were established, with healthy rats serving as the control group. Periodontal tissues from each group were collected for small RNA sequencing. Subsequently, differential miRNAs were analyzed in the periodontitis with hypertension group compared to the control group, as well as in the periodontitis with hypertension group compared to the periodontitis group.

ORGANISM(S): Rattus norvegicus

PROVIDER: GSE295193 | GEO | 2026/06/10

REPOSITORIES: GEO

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Project description:Periodontitis (PD) as a chronic inflammatory disease instigated by periodontal pathogenic bacteria and mediated by the host immune response, resulting in the destruction of supporting periodontal tissue and tooth loss in adults. Constructing an injectable delivery system that allows for sustained drug release within periodontal pockets to continuously eliminate pathogenic bacteria, reduce periodontal inflammation, and promote periodontal tissue regeneration is an effective strategy for periodontitis treatment. Here, we explore the therapeutic potential and underlying mechanisms of curcumin-loaded Pickering emulsion (PE-CUR) in periodontitis treatment. The Pickering emulsion formulation offers an effective delivery system, enhancing curcumin's bioavailability and therapeutic efficacy. In vitro studies, we demonstrate that the PE-CUR exhibit excellent biocompatibility and anti-inflammatory property by elimination of reactive oxygen species (ROS). In addition, PE-CUR significantly eliminate key periodontal pathogens, including Porphyromonas gingivalis (P. gingivalis) and Staphylococcus aureus (S. aureus). In a rat model of periodontitis, PE-CUR significantly attenuates periodontal tissue inflammation and alveolar bone loss, indicating a protective effect against periodontal tissue destruction. Mechanistically, PE-CUR promotes the expression of anti-inflammatory factors and inhibits the release of pro-inflammatory factors by regulating macrophage polarization from M1 to M2 and modulating the MAPK and PI3K-AKT signaling pathway. Furthermore, PE-CUR decreases the formation of osteoclasts as well as stimulates the activation and differentiation of osteoblasts successively, thereby ameliorating the periodontal inflammation and promoting the alveolar bone regeneration. Overall, our findings elucidate the therapeutic mechanisms of PE-CUR in periodontitis, suggesting its potential as a promising treatment strategy warranting further clinical investigation.

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Transcriptomic Analysis to Elucidate Key miRNAs and Signaling Pathways Involved in the Promotion of Periodontitis by Hypertension

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