scholarly journals Anti-Inflammatory Effect of Qingpeng Ointment in Atopic Dermatitis-Like Murine Model

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Yun-Zhu Li ◽  
Xue-Yan Lu ◽  
Wei Jiang ◽  
Lin-Feng Li
Keyword(s):  
Atopic Dermatitis ◽  
Chinese Medicine ◽  
Mast Cells ◽  
Mrna Expression ◽  
Murine Model ◽  
Skin Lesions ◽  
Serum Immunoglobulin ◽  
Repeated Application ◽  
Immune Dysfunctions ◽  
Inflammatory Effect

Qingpeng ointment (QP) is a Chinese medicine which has been used in treatment of atopic dermatitis (AD) in China. AD-like lesions were induced in BALB/c mice by repeated application of 2,4-dinitrofluorobenzene (DNFB) on shaved backs. The mice were then treated for 2 weeks with QP of different concentrations and Mometasone Furoate cream (MF), respectively. Macroscopic and microscopic changes of the skin lesions were observed after the treatment. The levels of serum immunoglobulin (Ig) E, tissue interferon (IFN)-γ, and interleukin (IL)-4 and IL-17A and the levels of involucrin, filaggrin, and kallikrein7 in epidermis were measured. The results show severe dermatitis with immune profiles similar to human acute AD. A significant infiltration of CD4+T and mast cells was observed in dermis of lesion but inhibited by QP after a 2-week treatment with it. The production of IgE, IL-4 and the mRNA expression of IL-17A were also suppressed, but the level of IFN-γwas increased. MF suppressed all production of these cytokines and IgE. Accordingly, the mechanism of QP on AD might correlate with its ability of modulating the immune dysfunctions rather than suppressing them. It had no effect on expressions of involucrin and filaggrin, except that its vehicle decreased the level of kallikrein7.

scholarly journals Topical Spilanthol Inhibits MAPK Signaling and Ameliorates Allergic Inflammation in DNCB-Induced Atopic Dermatitis in Mice

2019 ◽  
Vol 20 (10) ◽  
pp. 2490 ◽  
Author(s):  
Wen-Chung Huang ◽  
Chun-Hsun Huang ◽  
Sindy Hu ◽  
Hui-Ling Peng ◽  
Shu-Ju Wu
Keyword(s):  
Atopic Dermatitis ◽  
Mast Cells ◽  
Protein Kinase ◽  
Allergic Inflammation ◽  
Skin Lesions ◽  
Mapk Signaling ◽  
Mitogen Activated Protein Kinase ◽  
Mapk Pathways ◽  
Mitogen Activated Protein ◽  
Cox 2

Atopic dermatitis (AD) is a recurrent allergic skin disease caused by genetic and environmental factors. Patients with AD may experience immune imbalance, increased levels of mast cells, immunoglobulin (Ig) E and pro-inflammatory factors (Cyclooxygenase, COX-2 and inducible NO synthase, iNOS). While spilanthol (SP) has anti-inflammatory and analgesic activities, its effect on AD remains to be explored. To develop a new means of SP, inflammation-related symptoms of AD were alleviated, and 2,4-dinitrochlorobenzene (DNCB) was used to induce AD-like skin lesions in BALB/c mice. Histopathological analysis was used to examine mast cells and eosinophils infiltration in AD-like skin lesions. The levels of IgE, IgG1 and IgG2a were measured by enzyme-linked immunosorbent assay (ELISA) kits. Western blot was used for analysis of the mitogen-activated protein kinase (MAPK) pathways and COX-2 and iNOS protein expression. Topical SP treatment reduced serum IgE and IgG2a levels and suppressed COX-2 and iNOS expression via blocked mitogen-activated protein kinase (MAPK) pathways in DNCB-induced AD-like lesions. Histopathological examination revealed that SP reduced epidermal thickness and collagen accumulation and inhibited mast cells and eosinophils infiltration into the AD-like lesions skin. These results indicate that SP may protect against AD skin lesions through inhibited MAPK signaling pathways and may diminish the infiltration of inflammatory cells to block allergic inflammation.

Quantitative analysis of bikunin-laden mast cells in follicular eruptions and chronic skin lesions of atopic dermatitis

2002 ◽  
Vol 294 (9) ◽  
pp. 387-392 ◽  
Author(s):  
Rieko Isogai ◽  
Akiko Matsukura ◽  
Yoshinori Aragane ◽  
Akira Maeda ◽  
Masaharu Matsukura ◽  
...  
Keyword(s):  
Atopic Dermatitis ◽  
Quantitative Analysis ◽  
Mast Cells ◽  
Skin Lesions ◽  
Chronic Skin

scholarly journals Anti-inflammatory effect of galectin-1 in a murine model of atopic dermatitis

2017 ◽  
Vol 95 (9) ◽  
pp. 1005-1015 ◽  
Author(s):  
Mab Pereira Corrêa ◽  
Frans Eberth Costa Andrade ◽  
Alexandre Dantas Gimenes ◽  
Cristiane Damas Gil
Keyword(s):  
Atopic Dermatitis ◽  
Murine Model ◽  
Anti Inflammatory ◽  
Inflammatory Effect

scholarly journals Therapeutic Effects of Chinese Herbal Formula (PTQX) on NC/Nga Mice with Atopic Dermatitis-Like Skin Lesions

2019 ◽  
Vol 2019 ◽  
pp. 1-13
Author(s):  
Fenggen Yan ◽  
Jing Zhang ◽  
Xiong Li ◽  
Xiumei Mo ◽  
Junfeng Liu ◽  
...  
Keyword(s):  
Atopic Dermatitis ◽  
Mast Cells ◽  
Lymph Nodes ◽  
Immunoglobulin E ◽  
Skin Lesions ◽  
Therapeutic Effects ◽  
Herbal Formula ◽  
Dorsal Skin ◽  
Chinese Herbal Formula ◽  
Chinese Herbal

Atopic dermatitis (AD), also known as atopic eczema, is a chronic pruritic inflammatory skin disease. The available systemic therapies for atopic dermatitis are inadequate. Objective. This study aimed to evaluate the effects of the Chinese herbal formula Pei Tu Qing Xin (PTQX) on dermatitis severity and ear swelling, immunomodulation, and the infiltration of mast cells in a mouse model of 1-chloro-2,4-dinitrobenzene- (DNCB-) induced AD. Methods. AD-like symptoms were induced by DNCB in NC/Nga mice. Skin lesions, dermatitis, ear swelling, and scratching behaviour were evaluated. Changes in the T-helper type 1 (Th1), Th2, Th17, and regulatory T (Treg) subtypes and immunoregulation in the spleen and lymph nodes were detected by flow cytometry. Results. Histopathological and immunohistochemical analyses demonstrated that PTQX decreased the DNCB-mediated induction of mast cells and infiltration of inflammatory cells in the ear and dorsal skin. PTQX also reduced the DNCB-induced increase in the serum immunoglobulin E level, pruritus, and dermatitis (red, flaky areas) on the dorsal skin. Furthermore, PTQX regulated the balance between the populations of Th1, Th2, Th17, and Treg cells (particularly the latter two) in the lymph nodes. Conclusions. Our results suggest that the Chinese herbal formula PTQX can alleviate symptoms of AD, such as epithelial damage, redness, swelling, and pruritus, and potentially be used to treat this condition.

scholarly journals The Suppressive Effect of Leucine-Rich Glioma Inactivated 3 (LGI3) Peptide on Impaired Skin Barrier Function in a Murine Model Atopic Dermatitis

Pharmaceutics ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 750
Author(s):  
Ui Seok Kim ◽  
Jin Woo Park ◽  
Eon Sub Park ◽  
Joon Seok Bang ◽  
Tae Woo Jung ◽  
...  
Keyword(s):  
Atopic Dermatitis ◽  
Murine Model ◽  
Barrier Function ◽  
Skin Barrier ◽  
Clinical Score ◽  
Skin Lesions ◽  
Suppressive Effect ◽  
Skin Barrier Function ◽  
Skin Thickness ◽  
Dorsal Skin

This study aimed to restore the skin barrier function from atopic dermatitis (AD) via treatment with leucine-rich glioma inactivated 3 (LGI3) peptide. Male NC/Nga mice (7 weeks, 20 g) were randomly allocated into three groups (control, AD, and LGI3 group). After induction of AD skin lesions with Dermatophagoides farinae ointment, mice were treated with LGI3. The clinical score of AD was the highest and the dorsal skin thickness was the thickest in the AD group. In contrast, LGI3 treatment improved the clinical score and the dorsal skin thickness compared to the AD model. LGI3 treatment suppressed histopathological thickness of the epithelial cell layer of the dorsal skin. LGI3 treatment could indirectly reduce mast cell infiltration through restoring the barrier function of the skin. Additionally, the filaggrin expression was increased in immunohistochemical evaluation. In conclusion, the ameliorating effect and maintaining skin barrier homeostasis in the AD murine model treated with LGI3 could be attributed to complete re-epithelialization of keratinocytes. Hence, LGI3 might be considered as a new potential therapeutic target for restoring skin barrier function in AD.

scholarly journals High-Intensity Resistance Training Suppresses Exacerbation of Atopic Dermatitis in Mice

2020 ◽  
Vol 29 (4) ◽  
pp. 443-449
Author(s):  
Eun-Ju Choi ◽  
Ki Chan Cho ◽  
Jooyoung Kim
Keyword(s):  
Atopic Dermatitis ◽  
Lymph Node ◽  
Resistance Training ◽  
Mrna Expression ◽  
High Intensity ◽  
Histopathological Examination ◽  
Inflammatory Cells ◽  
Skin Lesions ◽  
Positive Effects ◽  
Draining Lymph Node

PURPOSE: Training generally promotes health and inhibits diseases. However, in patients with atopic dermatitis (AD), training and sweating are significant aggravating factors. This study examined the effect of high-intensity resistance training (HIRT) on AD-like skin lesions in mice.METHODS: Eight-week-old female BALB/c mice were divided into four groups (control, HIRT, AD-only, and AD+HIRT). The mice in the HIRT group performed vertical ladder climbing for four weeks.RESULTS: After four weeks of HIRT, histopathological examination revealed reduced epidermis/dermis and dermal infiltration of inflammatory cells in the mice ear tissue. Additionally, HIRT suppressed serum immunoglobulin (Ig) levels and mRNA expression of pathogenic cytokines in the ear tissue; further, it reduced the size and weight of the draining lymph node (dLN) and non-dLN (ndLN), and the pathogenic cytokine-related mRNA expression of CD4+T cells from dLNs and ndLNs. We thus observed a negative correlation between HIRT and AD symptoms in mice.CONCLUSIONS:The results show that HIRT exerts positive effects in patients with AD.

Sign in / Sign up

Export Citation Format

Share Document