Anti-inflammatory effect of Centella asiatica phytosome in a mouse model of phthalic anhydride-induced atopic dermatitis

Phytomedicine ◽  
2018 ◽  
Vol 43 ◽  
pp. 110-119 ◽  
Author(s):  
Park Ju Ho ◽  
Jang Jun Sung ◽  
Kim Ki Cheon ◽  
Hong Jin Tae
2019 ◽  
Vol 28 (1) ◽  
pp. 253-263 ◽  
Author(s):  
Yu Jin Lee ◽  
Myung Jin Oh ◽  
Dong Hun Lee ◽  
Yong Sun Lee ◽  
Jiin Lee ◽  
...  

2018 ◽  
Vol 27 (4) ◽  
pp. 378-385 ◽  
Author(s):  
Ju Ho Park ◽  
In Jun Yeo ◽  
Ji Hye Han ◽  
Jeong Won Suh ◽  
Hee Pom Lee ◽  
...  

2020 ◽  
Vol 58 (1) ◽  
pp. 1263-1276
Author(s):  
Bo Ram Song ◽  
Su Jin Lee ◽  
Ji Eun Kim ◽  
Hyeon Jun Choi ◽  
Su Ji Bae ◽  
...  

Molecules ◽  
2021 ◽  
Vol 26 (10) ◽  
pp. 3053
Author(s):  
Anh Thu Ha ◽  
Mi-Yeon Kim ◽  
Jae Youl Cho

Barringtonia augusta methanol extract (Ba-ME) is a folk medicine found in the wetlands of Thailand that acts through an anti-inflammatory mechanism that is not understood fully. Here, we examine how the methanol extract of Barringtonia augusta (B. augusta) can suppress the activator protein 1 (AP-1) signaling pathway and study the activities of Ba-ME in the lipopolysaccharide (LPS)-treated RAW264.7 macrophage cell line and an LPS-induced peritonitis mouse model. Non-toxic concentrations of Ba-ME downregulated the mRNA expression of cytokines, such as cyclooxygenase and chemokine ligand 12, in LPS-stimulated RAW264.7 cells. Transfection experiments with the AP-1-Luc construct, HEK293T cells, and luciferase assays were used to assess whether Ba-ME suppressed the AP-1 functional activation. A Western blot assay confirmed that C-Jun N-terminal kinase is a direct pharmacological target of Ba-ME action. The anti-inflammatory effect of Ba-ME, which functions by β-activated kinase 1 (TAK1) inhibition, was confirmed by using an overexpression strategy and a cellular thermal shift assay. In vivo experiments in a mouse model of LPS-induced peritonitis showed the anti-inflammatory effect of Ba-ME on LPS-stimulated macrophages and acute inflammatory mouse models. We conclude that Ba-ME is a promising anti-inflammatory drug targeting TAK1 in the AP-1 pathway.


2017 ◽  
Vol 16 (6) ◽  
pp. 8964-8972 ◽  
Author(s):  
Young-Ae Choi ◽  
Jin Kyeong Choi ◽  
Yong Hyun Jang ◽  
Soyoung Lee ◽  
Sang-Rae Lee ◽  
...  

2020 ◽  
Vol 37 (2) ◽  
pp. 123-127
Author(s):  
Kyeong Ju Park ◽  
Ho-Sueb Song

Background: This study was designed using a mouse model of atopic dermatitis [phthalic anhydride (PA)-treated mice], to investigate the anti-inflammatory effect of bee venom pharmacopuncture (BVP) in keratinocytes.Methods: Western blot analysis was performed to investigate inflammation related protein expression of iNOS, COX-2, phospho-ERK (p-ERK), and ERK, in LPS (1 μg/mL)-activated keratinocytes, following BVP treatment, and in PA-treated mice, after BVP treatment. Griess reaction was performed to investigate NO concentration. Enzyme-linked immunosorbent assays were used to determine the concentrations of interleukin (IL)-4+, IL-17A+, IL-13 and IL-4 in PA-treated mice after BVP treatment. In addition, monocyte, macrophage, neutrophil, and eosinophil counts were measured to observe the changes in white blood cell infiltration.Results: The keratinocytes of the BVP-treated group showed a decreased expression of iNOS, COX-2, ERK at 5 OX-2, ERK E, and p-ERK at 1, 2 and 5 RKRK ERK ERK, and a dose-dependent decrease in NO concentration at 2 and 5 ntrationof s. In the BVP-treated groups (0.1 μ.1-trea μ.1-treated gr), PA-treated mice showed recovery after 4 weeks which was dose-dependent, showing a significant decrease in clinical scores for AD, and a decreased concentration of IL-13 and IL-4 with BV treatment. There was a dose-dependent decrease in the infiltration of eosinophils, neutrophils, monocytes, macrophages, and a decreased thickness of the epidermis due to inflammation, and decreased expressions of iNOS, COX-2, p-ERK, ERK, especially in the 0.1 μ0/mL BVP-treated group,<br>Conclusion: These results suggest that BVP may be an effective alternative treatment for atopic dermatitis.


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