ReferenceID 4351

Ginsenoside Rg3 attenuates skin disorders via down-regulation of MDM2/HIF1α signaling pathway

J Ginseng Res

Background: Thymic stromal lymphopoietin (TSLP) acts as a master switch for inflammatory responses. Ginsenoside Rg3 (Rg3) which is an active ingredient of Panax ginseng Meyer (Araliaceae) is known to possess various ther

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Reference Id
4351
Evidence Id
20941
Core Evidence Id
20941
Source Reference Id
1967
Herb2 Reference Id
HBREF002764
Subject Paper Key
HBIN003500_34803431
Pubmed Id
34803431
Doi
10.1016/j.jgr.2021.06.008
Paper Title
Ginsenoside Rg3 attenuates skin disorders via down-regulation of MDM2/HIF1α signaling pathway
Paper Abstract
Background: Thymic stromal lymphopoietin (TSLP) acts as a master switch for inflammatory responses. Ginsenoside Rg3 (Rg3) which is an active ingredient of Panax ginseng Meyer (Araliaceae) is known to possess various therapeutic effects. However, a modulatory effect of Rg3 on TSLP expression in the inflammatory responses remains poorly understood. Methods: We investigated antiinflammatory effects of Rg3 on an in vitro model using HMC-1 cells stimulated by PMA plus calcium ionophore (PMACI), as well as an in vivo model using PMA-induced mouse ear edema. TSLP and vascular endothelial growth factor (VEGF) levels were detected using enzyme-linked immunosorbent assay or real-time PCR analysis. Murine double minute 2 (MDM2) and hypoxia-inducible factor 1alpha (HIF1alpha) expression levels were detected using Western blot analysis. Results: Rg3 treatment restrained the production and mRNA expression levels of TSLP and VEGF in activated HMC-1 cells. Rg3 down-regulated the MDM2 expression level increased by PMACI stimulation. The HIF1alpha expression level was also reduced by Rg3 in activated HMC-1 cells. In addition, Rg3-administered mice showed the decreased redness and ear thickness in PMA-irritated ear edema. Rg3 inhibited the TSLP and VEGF levels in the serum and ear tissue homogenate. Moreover, the MDM2 and HIF1alpha expression levels in the ear tissue homogenate were suppressed by Rg3. Conclusion: Taken together, the current study identifies new mechanistic evidence about MDM2/HIF1alpha pathway in the antiinflammatory effect of Rg3, providing a new effective therapeutic strategy for the treatment of skin inflammatory diseases.
Journal
J Ginseng Res
Publish Year
2021
Experiment Subject
mouse; hmc-1 cells
Experiment Type
Animal Experiment
Phenotype Related
Skin Inflammatory Diseases; Ear Edema; Pma-irritated Ear Edema
Paper Title Cn
Paper Title En
Ginsenoside Rg3 attenuates skin disorders via down-regulation of MDM2/HIF1α signaling pathway
Bilingual Status
semi_complete