ReferenceID 2875

Sophoricoside from Styphnolobium japonicum improves experimental atopic dermatitis in mice

Phytomedicine

BACKGROUND: Abnormal immune responses, specifically excessive differentiation of Th2 cells, are associated with the development of atopic dermatitis (AD). Sophoricoside, the genistein-4'-beta-D-glucoside isolated from St

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Reference Id
2875
Evidence Id
19465
Core Evidence Id
19465
Source Reference Id
5739
Herb2 Reference Id
HBREF006536
Subject Paper Key
HBIN044393_33545490
Pubmed Id
33545490
Doi
10.1016/j.phymed.2021.153463
Paper Title
Sophoricoside from Styphnolobium japonicum improves experimental atopic dermatitis in mice
Paper Abstract
BACKGROUND: Abnormal immune responses, specifically excessive differentiation of Th2 cells, are associated with the development of atopic dermatitis (AD). Sophoricoside, the genistein-4'-beta-D-glucoside isolated from Styphnolobium japonicum, has previously demonstrated anti-inflammatory and immunosuppressive effects along with IL-3 and IL-5 inhibitory activities. Therefore, we speculated that sophoricoside could regulate AD by regulating abnormal immune responses. PURPOSE: To investigate the role of sophoricoside on AD-like allergic skin inflammation induced by ovalbumin (OVA) or 2,4,6-trinitrochlorobenzene (TNCB) in mouse models. METHODS: Sophoricoside was isolated from the 70% ethanol extract of S. japonicum dried mature seeds. After being submitted to a purification process, its purity was assessed by high-performance liquid chromatography (HPLC). The effects of sophoricoside were determined in vivo by OVA- and TNCB-induced AD-like allergic skin inflammation in mice. Skin tissues were subjected with hematoxylin-eosin (H&E), Giemsa and toluidine blue staining. In vitro CD4+ T cell differentiation was performed and the levels of serum immunoglobulins, cytokines, and genes related to CD4+ T cell differentiation were determined by enzyme-linked immunosorbent assay (ELISA) and quantitative real-time PCR. Cytokine bioassay, mixed lymphocytes reaction and cell viability assay were performed. RESULTS: Topical application of sophoricoside decreased the symptoms of AD-like allergic skin inflammation, including elevated hypertrophic scars with spongiotic epidermis, epidermal hyperplasia, hyperkeratosis, infiltration of immune, and mast cells, dermal thickness, amounts of immunoglobulins, and pro-inflammatory cytokines, and the mast cell population in the skin. Sophoricoside also decreased T cell antigen receptor (TCR)-mediated immune responses. In particular, sophoricoside suppressed the differentiation of naive CD4+ T cells into Th cell subsets, including Th1, Th2, and Th17, by inhibiting the expression of their subset-specific master transcription factors, leading to suppression of the expression and production of these cell subset-specific cytokines. CONCLUSION: Sophoricoside can improve AD-like allergic skin diseases mainly by inhibiting pathogenic CD4+ T cell differentiation and immune responses.
Journal
Phytomedicine
Publish Year
2021
Experiment Subject
mouse
Experiment Type
Cell Experiment
Phenotype Related
Ad-like Allergic Skin Diseases; Ad-like Allergic Skin Inflammation; Atopic Dermatitis; Hypertrophic Scars; Hyperkeratosis; Epidermal Hyperplasia; Spongiotic Epidermis
Paper Title Cn
Paper Title En
Sophoricoside from Styphnolobium japonicum improves experimental atopic dermatitis in mice
Bilingual Status
semi_complete