Ginsenoside Rg1 alleviates lipopolysaccharide-induced pyroptosis in human periodontal ligament cells via inhibiting Drp1-mediated mitochondrial fission

被引：13

作者：

Chu, Kefei ^{[1
,2
]}

Zhang, Zhenghao ^{[1
,2
]}

Chu, Yi ^{[1
,2
]}

Xu, Yao ^{[1
,2
]}

Yang, Wanrong ^{[1
,2
]}

Guo, Ling ^{[2
,3
]}

机构：

[1] Southwest Med Univ, Luzhou Key Lab Oral & Maxillofacial Reconstruct &, Affiliated Stomatol Hosp, Luzhou 646000, Sichuan, Peoples R China

[2] Southwest Med Univ, Dept Oral Prosthodont, Affiliated Stomatol Hosp, Luzhou 646000, Sichuan, Peoples R China

[3] 2 Jiangyang South Rd, Luzhou 646000, Sichuan, Peoples R China

来源：

ARCHIVES OF ORAL BIOLOGY | 2023年 / 147卷

关键词：

Pyroptosis; Mitochondrial fission; AMP-activated protein kinases; Ginsenoside Rg1; PORPHYROMONAS-GINGIVALIS; NLRP3; ACTIVATION; STRESS; INFLAMMATION; DYSFUNCTION;

D O I：

10.1016/j.archoralbio.2023.105632

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

Objective: The present study aimed to investigate whether Ginsenoside Rg1 alleviated lipopolysaccharide (LPS) -induced pyroptosis of human periodontal ligament cells (HPDLCs) and further explore the underlying mechanism.Design: Cell viability was detected using the CCK-8 assay. Proinflammatory cytokine secretion and lactate de-hydrogenase release were examined by ELISA. Flow cytometry analysis was conducted to determine the pyroptosis ratio, and ATP production was estimated using the ATP assay kit. Fluorescence staining was utilized to visualize mitochondrial morphology and analyze mitochondrial reactive oxygen species (mtROS), and the mitochondrial membrane potential level. Western blot and qRT-PCR were used to determine the expression of signaling pathway-related proteins and mRNA, respectively.Results: The results discovered that Ginsenoside Rg1 treatment enhanced cell viability in comparison to LPS stimulation, attenuated pyroptosis in HPDLCs, and reduced the release of lactate dehydrogenase, IL-1 beta, and IL-18 significantly. Additionally, we found that Ginsenoside Rg1 upregulated ATP content and mitochondrial mem-brane potential level while reducing aberrant mitochondrial fission and mtROS production. Mechanistically, we found that Ginsenoside Rg1 upregulated dynamin-related protein 1 (Drp1) phosphorylation at Ser 637 in an AMP-activated protein kinase (AMPK)-dependent manner, and reduced pyroptosis-related proteins expression, including NLRP3, ASC, Caspase-1, and GSDMD-NT. Conclusions: These findings demonstrate that Ginsenoside Rg1 treatment attenuates LPS-induced pyroptosis and inflammation damage in HPDLCs, which may connect to the activation of the AMPK/Drp1/NLRP3 signaling pathway. Moreover, the results offer a potential theoretical foundation for applying Ginsenoside Rg1 in in-flammatory diseases such as periodontitis.

引用

页数：10

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