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Ozonated oil alleviates dinitrochlorobenzene-induced allergic contact dermatitis via inhibiting the FcεRI/Syk signaling pathway.
- Source :
-
Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences [Zhong Nan Da Xue Xue Bao Yi Xue Ban] 2023 Jan 28; Vol. 48 (1), pp. 1-14. - Publication Year :
- 2023
-
Abstract
- Objectives: Ozone is widely applied to treat allergic skin diseases such as eczema, atopic dermatitis, and contact dermatitis. However, the specific mechanism remains unclear. This study aims to investigate the effects of ozonated oil on treating 2,4-dinitrochlorobenzene (DNCB)-induced allergic contact dermatitis (ACD) and the underling mechanisms.<br />Methods: Besides the blank control (Ctrl) group, all other mice were treated with DNCB to establish an ACD-like mouse model and were randomized into following groups: a model group, a basal oil group, an ozonated oil group, a FcεRI-overexpressed plasmid (FcεRI-OE) group, and a FcεRI empty plasmid (FcεRI-NC) group. The basal oil group and the ozonated oil group were treated with basal oil and ozonated oil, respectively. The FcεRI-OE group and the FcεRI-NC group were intradermally injected 25 µg FcεRI overexpression plasmid and 25 µg FcεRI empty plasmid when treating with ozonated oil, respectively. We recorded skin lesions daily and used reflectance confocal microscope (RCM) to evaluate thickness and inflammatory changes of skin lesions. Hematoxylin-eosin (HE) staining, real-time PCR, RNA-sequencing (RNA-seq), and immunohistochemistry were performed to detct and analyze the skin lesions.<br />Results: Ozonated oil significantly alleviated DNCB-induced ACD-like dermatitis and reduced the expressions of IFN-γ, IL-17A, IL-1β, TNF-α, and other related inflammatory factors (all P<0.05). RNA-seq analysis revealed that ozonated oil significantly inhibited the activation of the DNCB-induced FcεRI/Syk signaling pathway, confirmed by real-time PCR and immunohistochemistry (all P<0.05). Compared with the ozonated oil group and the FcεRI-NC group, the mRNA expression levels of IFN-γ, IL-17A, IL-1β, IL-6, TNF-α, and other inflammatory genes in the FcεRI-OE group were significantly increased (all P<0.05), and the mRNA and protein expression levels of FcεRI and Syk were significantly elevated in the FcεRI-OE group as well (all P<0.05).<br />Conclusions: Ozonated oil significantly improves ACD-like dermatitis and alleviated DNCB-induced ACD-like dermatitis via inhibiting the FcεRI/Syk signaling pathway.
- Subjects :
- Animals
Mice
Dinitrochlorobenzene toxicity
Dinitrochlorobenzene metabolism
Skin metabolism
Cytokines metabolism
Interleukin-17 metabolism
Tumor Necrosis Factor-alpha metabolism
Signal Transduction
RNA, Messenger metabolism
Mice, Inbred BALB C
Dermatitis, Allergic Contact drug therapy
Dermatitis, Allergic Contact metabolism
Dermatitis, Allergic Contact pathology
Dermatitis, Atopic chemically induced
Subjects
Details
- Language :
- English; Chinese
- ISSN :
- 1672-7347
- Volume :
- 48
- Issue :
- 1
- Database :
- MEDLINE
- Journal :
- Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences
- Publication Type :
- Academic Journal
- Accession number :
- 36935172
- Full Text :
- https://doi.org/10.11817/j.issn.1672-7347.2023.220082