• Journal of Neurogastroenterology and Motility
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• v.24 no.4
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• pp.676-677
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• 2018

• Applied Biological Chemistry
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• v.48 no.4
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• pp.411-417
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• 2005

Aqueous extracts were prepared from 21 medicinal herbs including Herba Pogostemi (Agastache rugosa) to examine their modulatory effects on NO production in mouse macrophage cell line RAW264.7 cells. While almost all medicinal herb extracts failed to show marked scavenging activities to NO produced by LPS stimulation, only Herba Pogostemi showed a rather strong induction of NO production in RAW264.7 cells without stimulation with LPS. When we treated the cell with $200{\mu}M\;of\;N^G-monomethyl-L-arginine\;(N^GMMA)$, a NOS2 inhibitor, a significant reduction in NO production could be observed. Moreover, a treatment of $100{\mu}M$ pyrrolidine dithiocarbamate (PDTC) led to about a 79% reduction of NO production. These results demonstrated that the aqueous extract of Herba Pogostemi might provide a second signal for the expression of NOS2 in RAW264.7 cells, and suggested that Herba Pogostemi induces NO production through L-argininedependent pathway.

• Journal of Acupuncture Research
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• v.33 no.1
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• pp.23-36
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• 2016

Objectives : The aim of this study was to investigate the asthma-suppressive and immuno-regulatory effect of AHCR-HA (Root of Asarum sieboldii Miq. water extract) on OVA (ovalbumin)-induced asthma in mice. Methods : All C57BL/6 mice experimental groups, except the Normal and N-AHCR groups, were sensitized with OVA. The mice in the N-AHCR group and the OVA-AHCR group were treated with water extract of AHCR (1 %) by an oral administration, and the OVA-Saline group were treated with saline solution. Oral dosesof AHCR water extract and saline were administered for 8 weeks, three times a week. Results & Conclusion : The lung weight and total cells in the lungs of the OVA-AHCR group decreased significantly compared with those of the OVA-Saline group. Total leukocytes and eosinophils in BALF and photomicrographs of the OVA-AHCR group decreased significantly compared with those of the OVA-Saline group. The collagen accumulation in the lung sections of the OVA-AHCR group decreased significantly compared with those of the OVA-Saline group. The concentrations of IL-4, IL-5, IL-13 and IgE in BALF and the serum of the OVA-AHCR group decreased significantly compared with those of the OVA-Saline group. The mRNA expressions of $TNF-{\alpha}$, $IL-1{\beta}$, IL-4, IL-5 and IL-13 in the lungs of the OVA-AHCR group decreased significantly compared with those of the OVA-Saline group.

• Journal of Physiology & Pathology in Korean Medicine
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• v.26 no.4
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• pp.446-454
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• 2012

In order to evaluate the efficacy of SHT against atopic dermatitis (AD), various immune related cytokines as well as histological comparison were performed in animal models, and the results are described. Clinical skin index of the SHT treated group decreased significantly in weeks 11 and 13, compared to the control group. Also, CD4+ immune cell ratio in the dorsal skin was significantly decreased to 69%, and both epidermal and dermal skin thickness was decreased. Serum IL-4, IL-5, IL-6, IL-13, and TNF-${\alpha}$, which are all important markers of inflammation, were decreased to 64%, 44%, 87%, 48%, and 45%, respectively. The expression of histamine, a chemical transmitter increasingly released during the progression of inflammation, was significantly decreased to 47%. The production of IgE immunoglobulin was significantly decreased to 16% compared to the control group. In conclusion, SHT pacifies the activation of T cells, leading to suppression of both Th2 cytokine overexpression and infiltration of immune cells into skin. As a result, relative thinning of both epidermis and dermis were observed. With the results obtained from in vitro studies, the immune modulatory effect of SHT in AD animal models was experimentally demonstrated. This study should provide solid information to construct EBM and for clinical practice.

• Korean Journal of Medicinal Crop Science
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• v.17 no.1
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• pp.54-60
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• 2009

This study was performed to improve immune activities of Rubus coreanus Miquel by encapsulation of nanoparticles. Immuno-activities of R. coreanus were investigated through aqueous extracts associated with process of water at $60^{\circ}C$. It showed high promotion of human B and T cells growth about 50%, compared to the case of other conditions. The secretion of IL-6 and TNF-${\alpha}$ was also enhanced as $2.44{\times}10^{-4}$pg/cell and $1.94{\times}10^{-4}$pg/cell, results by adding nano samples. NK cell activation was improved up to 29% higher than the conventional extraction process. The secretion of NO from macrophage showed 14.9 ${\mu}M$ on the nano-encapsulation process extracts, which was higher than others. The size of nanoparticles was in the range of 50${\sim}$300 nm, which can effect the penetration into the cells. It was clearly observed by real time confocal microscope.

• Journal of Haehwa Medicine
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• v.20 no.2
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• pp.17-27
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• 2012

In order to investigate the possibility of Kamisamultang(KMSMT) as therapeutic for the treatment of atopic dermatitis(AD), cytotoxicity, anti-oxidant activity, modulatory and suppression activities of KMSMT were tested. 90% or higher cell viability was observed in all tested groups from 25 to 200 ${\mu}g/m{\ell}$ using Raw 264.7 cells. KMSMT showed dose-dependent DPPH scavenging activity, with more than 80% scavenging activities at 400 and 800 ${\mu}g/m{\ell}$ concentrations. KMSMT showed dose-dependent suppression activity of reactive oxygen species(ROS) production, especially at 200 ${\mu}g/m{\ell}$ of 42.6%. KMSMT decreased nitric oxide(NO) production activity dose dependently, expecially at 200 ${\mu}g/m{\ell}$ of 30.9%. IL-$1{\beta}$, IL-6, MCP-1, TNF-${\alpha}$ production rate were decreased by 45.7%, 15.5%, 8.9%, 16.5% respectively when Raw 264.7 cells were treated with LPS and with KMSMT of 200 ${\mu}g/m{\ell}$. However, only IL-$1{\beta}$ and MCP-1 showed significant changes. The results above strongly suggest the modulatory and suppressive effect of KMSMT. The results above indicate that KMSMT significantly reduces the effect of oxidative and inflammatory cytokines. The use of KMSMT in atopic dermatitis can be widely suggested.

• YAKHAK HOEJI
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• v.51 no.6
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• pp.482-489
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• 2007

Kaempferitrin, isolated from Kenaf (Hibiscus cannabinus), was examined to evaluate its modulatory effects on antigen-presenting cell functions of macrophages/monocytes such as phagocytosis of foreign materials, up-regulation of costimulatory molecules (CD40, CD80 and CD86), adhesion molecule activation, and antigen processing and presentation. Kaempferitrin strongly blocked up-regulation of CD40, CD80 and CD86, but not pattern recognition receptor (PRR) (e.g., TLR2). It also suppressed functional activation of CD29 (${\beta}1$-integrins), as assessed by cell-cell adhesion assay, required for T cell-antigen-presenting cell (APC) interaction. Furthermore, this compound did not block a simple activation of CD29, as assessed by cell-fibronectin adhesion assay. However, the compound did not diminish phagocytic uptake, an initial step for antigen processing, and ROS generation in RAW264.7 cells. In particular, to understand molecular mechanism of kaempferitrin-mediated inhibition, the regulatory role of LPS-induced signaling events was examined using immunoblotting analysis. Interestingly, this compound dose dependently suppressed the phosphorylation of $I{\kappa}B{\alpha}$, Src, Akt and Syk, demonstrating that it can negatively modulate the activation of these signaling enzymes. Therefore, our data suggested that kaempferitrin may be involved in regulating APC function-relevant immune responses of macrophages and monocytes by regulating intracellular signaling.

• The Journal of Korean Obstetrics and Gynecology
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• v.34 no.2
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• pp.1-15
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• 2021

Objectives: This study was designed to examine immuno-modulatory effects of Evodia Rutaecarpine by activating innate immune system and inhibiting inflammation. Methods: First, Cell cytotoxicity was examined with 4T1 breast carcinoma and TG-induced macrophage. To investigate activating innate immune system of Evodiamine Rutacarpine Extract (ERE) on macrophage, we tested tumor necrosis factor-alpha (TNF-α), interleukin-12 (IL-12), and interleukin-6 (IL-6). In addition, TNF-α and nitric oxide (NO) induced by lipopolysaccharide (LPS) were measured after treating with ERE to observe innate immune modulating effect of ERE on RAW 264.7 cell. Also, mitogen-activated protein kinase (MAPK) and nuclear factor κB (NF-κB) were examined by western blot analysis. Results: In cytotoxicity analysis, ERE significantly affected tumor cell growth above specific concentration. Also, ERE significantly affected macrophage growth above specific concetration. As compared with the control group, the production of TNF-α, IL-12 and IL-6 were increased in TG-induced macrophage. As compared with the control group, TNF-α and IL-6 were significantly up-regulated in RAW 264.7 cell. The expression of TNF-α and NO induced by LPS after treating ERE was significantly decreased compared with control group. In addition, We observed ERE inhibited the phosphorylation levels of p-extracellular signal-regulated kinase (p-ERK), p-Jun N-terminal kinase (p-JNK), and p-p38 in western blotting by treating ERE on RAW 264.7 cell. Conclusions: ERE seems to have considerable impact on the anti-cancer effect by activation of innate immune system and inflammation control.

• Korean Journal of Medicinal Crop Science
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• v.16 no.5
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• pp.349-355
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• 2008

Anticancer and immuno-modulatory activities of methanol extracts from different parts, bark, wood and leaf, of Cornus macrophylla Wall. were investigated in this study. All extracts at a concentration of 1.0mg/ml showed relativity low cytotoxicities on human normal kidney cell (HEK293) by approximately 25%. Bark extract of C. macrophylla showed the highest anticancer activity on human lung cancer cell line (A549) and human breast cancer cell line (MCF-7) by 57.4% and 58.7%, respectively, at a concentration of 1.0mg/ml. All extracts enhanced the growth of human B and T cells, showing 38.7% and 65.9% increase compared to control, respectively, by 5 days incubation with bark extract. The secretions of interleukin 6 (IL6) and tumor necrosis factor alpha (TNF-$\alpha$) from human B and T cells were significantly increased by extracts, especially bark extract. B or T cell medium, which contains cytokines (IL 6 and TNF-$\alpha$) secreted by bark extract treatment for 5 days, time-dependently enhanced the growth of NK-92MI cells with the maximal effect at 5th day of incubation. These results suggest that C. macrophylla, especially bark, has the potential for anticancer and immuno-modulatory activities.

• 한국약용작물학회:학술대회논문집
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• 2007.05a
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• pp.151-152
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• 2007