Cytokines released from innate immune cells play key roles in the regulation of the immune response. Red Ginseng (RG, steamed and dried root of Panax ginseng C.A. Meyer) is known to show different pharmacological effects by changed composition of saponins compared with Panax Ginseng. In this study, we examined the immunomodulatory effects of RG on the regulation of cytokine release in mice. RG was injected i.p at doses of 0.5, 5 and 50 mg/kg for 6 weeks. We assessed that the weight index of immune organs such as thymus, and spleen, and the mitogen blastogenesis of splenocytes. We also determined the levels of circulating cytokines in serum from RG-treated mice using ELISA assay. The weight index of thymus and spleen, and proliferation of mitogen response of splenocytes have increased in the RG-injected groups. In addition, the levels of IFN-${\gamma}$, TNF-${\alpha}$, IL-6, IL-12 and IL-2 concentrations have significantly increased in the serum of RG-treated mice, but that of IL-10 has not. These results suggest that RG has immune stimulating effects and could be useful as a immunoregulator of circulating cytokine release in vivo.
Shin, Chan Young;Noh, Min Su;Lee, Sang Derk;Lee, Sang Bong;Ko, Kwang Ho
Biomolecules & Therapeutics
/
v.3
no.4
/
pp.266-272
/
1995
The analysis of membrane receptors for hormones and neurotransmitters has progressed considerably by pharmacological and biochemical means and more recently through the use of specific antibodies. To generate and characterize a moloclonal antibody against $\beta$-adrenergic receptor, a synthetic $\beta$2-adrenergic receptor peptide (Phe-Gly-Asn-Phe-Trp-Cys-Phe-Trp-Thr-Ser-lle-Asp-Val-Leu) which may comprise part of $\beta$-adrenergic receptor ligand binding pocket was coupled to Keyhole Limpet Hemocyanin (KLH) and used as an immunogen. Male BALB/C mice were immunized with this antigen and the immunized spleen was fused with myeloma SP2/0-Ag14 cells to produce monoclonal antibodies. Two clones were obtained but one of monoclonal antibodies, mAb5G09, was used throughout in this study because the other clone, mAb5All showed weak immunoreactivity against KLH as well. The mouse monoclonal antibody mAb5G09 produced in this study showed immunoreactivity to peptide-KLH conjugates and also to human A43l cells and guinea pig lung $\beta$2-adrenergic receptor as revealed by ELISA and western blot. In the course of determination of the effects of mAb5G09 on $\beta$-receptor ligand binding, it was observed that mAb5G09 specifically bound $\beta$-adrenergic radioligand [$^3$H]dihydroalprenolol (DHA) with a dissociation constant (Kd) of 60 nM. The [$^3$H]DHA binding activity of mAb5G09 had characteristics of immunoglobulins and the binding activity was not observed in the control anti-KLH monoclonal antibody. The monoclonal antibody, mAb5G09 produced in this study may provide useful models for the study of the structure of receptor binding sites.
Kim, Ha-Rim;Kim, Sang-Jun;Kim, Sol;Kim, HongJun;Jeong, Seung-Il;Yu, Kang-Yeol;Kim, Seon-Young
Herbal Formula Science
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v.26
no.4
/
pp.295-306
/
2018
Schisandra chinensis (SC) and Lycium chinense (LC) were widely distributed in Asia and the fruit has been used traditionally for medicinal herbs. The processing method was solid-state fermentation using Aspergillus oryzae for 48 h after stir-frying treatment at $220^{\circ}C$ for 12 min. In this study, in vitro the anti-inflammatory effect and in vivo hangover reduction were compared to unprocessed SC and LC water extract. Anti-inflammatory effects have been evaluated in pro-inflammatory mediators which were secreted by lipopolysaccharide (LPS)-induced RAW 264.7 macrophages. Nitric oxide (NO) was determined using Griess reaction. Proinflammatory cytokines such as tumor necrosis factor $(TNF)-{\alpha}$ and interleukin $(IL)-1{\beta}$ were measured by enzyme-linked immunosorbent assays (ELISA). Alcohol dehydrogenase (ADH) and acetaldehyde dehydrogenase (ALDH) activities were compared to processed SC or LC and mixtures thereof (1:1). In vivo study was compared to hangover relief in alcohol-fed mice. After administering a mixture of SC and LC (300 mg/kg) water extract (1:1), mice were fed 3 g/kg of ethanol. Serum was collected at 1, 3, and 5 h intervals to analyze ethanol and acetaldehyde levels using a colorimetric assay kit. The processed SC and LC water extracts compared to raw materials significantly inhibited LPS-induced NO and inflammatory cytokine production in RAW 264.7 cells. The results of the hangover mouse model are also consistent with anti-inflammatory effects. These results suggest that processed SC and LC extracts may be functional materials for the treatment of inflammation and hangover.
Proceedings of the Plant Resources Society of Korea Conference
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2019.04a
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pp.54-54
/
2019
Apple (Malus domestica) is one of the most economically important fruits in Korea. But virus infection has decreased sustainable production of apple and caused the serious problems such as yield loss and poor fruit quality. Virus or viroid infection including Apple chlorotic leaf spot virus (ACLSV), Apple stem pitting virus (ASPV), Apple stem grooving virus (ASGV), Apple mosaic virus (ApMV) and Apple scar skin viroid (ASSVd) has been also reported in Korea. In many cases, apple is infected with virus and viroid with no specific symptoms, the damage caused by the virus are unaware significantly. In our research, we tried to eliminate viruses in the rootstock for the disease-free seedlings of the apple dwarfing rootstock M.9 and M.26. The method of virus elimination was meristem culture, heat($37^{\circ}C$, 6weeks) treatment and chemistry($Ribavirin^{(R)}$) treatment. The analytical methods commonly used for the detection of virus is Enzyme-linked Immuno-Sorbent Assay(ELlSA) and Reverse Transcription-polymerase Chain Reaction(RT-PCR). RT-PCR method was more 30% sensitive than ELISA method. Efficiency of method eliminate virus appeared meristem method > heat treatment > chemistry treatment. The higher acquisition rate of disease-free seedlings is 30~40% on meristem treatment. In meristem treatment, the apple dwarfing rootstock M.9 gained infection ratio of ACLSV, ASPV and ASGV were 45%, 60% and 50% respectively. In the apple dwarfing rootstock M.26, infection ratio of ACLSV, ASPV and ASGV were 40%, 55%, 55%, respectively. Based on our results, it was found that most effective method of disease-free seedlings apple dwarfing rootstocks was by meristem treatment than heat method and chemistry treatment.
Kim, Gun-Hee;Hong, Ka-Kyung;Cho, Han-Baek;Choi, Chang-Min;Kim, Song-Baek
The Journal of Korean Obstetrics and Gynecology
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v.32
no.2
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pp.1-17
/
2019
Objectives: This study was performed to identify the anti-inflammatory effects of Salvia miltiorrhizae radix Water extract (SMW) on lipopolysaccharide (LPS) induced inflammation. Methods: RAW 264.7 cells were treated with 500 ng/ml of LPS. SMW (0.1, 0.25, 0.5 mg/ml) was treated 1 h prior to LPS. Cell viability was measured by MTT assay. Levels of nitric oxide (NO) were measured with Griess reagent and pro-inflammatory cytokines were measured by enzyme-linked immunosorbent assay (ELISA) and real-time polymerase chain reaction (PCR). We also examined molecular mechanisms such as mitogen-activated protein kinases (MAPKs) and nuclear factor-kappa B ($NF-{\kappa}B$) activation by western blot. In addition, we observed mice survival rate after LPS and examined their cytokine levels of serum and liver tissue. Results: SMW itself did not have cytotoxic effects in RAW 264.7 cells less than 0.5 mg/ml. SMW treatment inhibited the production of NO, and interleukin $(IL)-1{\beta}$ which is pro-inflammatory cytokine. And SMW treatment inhibited the LPS-induced activation of MAPKs such as extracellular signal-regulated kinase1/2 (ERK1/2), p38 kinases (p38), c-Jun NH2-terminal kinase (JNK) and $NF-{\kappa}B$. In addition, it also showed reducing the level of $IL-1{\beta}$ on the serum and liver tissue of mice. Also, death of LPS-induced mice was inhibited by SMW. Conclusions: The result suggests that treatment of SMW could reduce the LPS-induced inflammation. Thereby, SMW could be used as a protective agent against inflammation. Also, this study could give a clinical basis that SMW could be a drug or agent to prevent inflammatory diseases.
Objectives : Seungmagalgeun-tang (SMGGT) is traditional medicine widely used for inflammatory disease and flu. But SMGGT exhibits potent anti-inflammatory activity with an unknown mechanism. To elucidate the molecular mechanisms of SMGGT water extract on pharmacological and biochemical actions in inflammation, we examined the effect of SMGGT on pro-inflammatory mediators in Phorbol-12-myristate-13-acetate (PMA)+A23187-stimulated mast cells. Methods : In the present study, pro-inflammatory cytokine production was determined by performing enzyme-linked immunosorbent assay (ELISA), reverse transcription polymerase chain reaction (RT-PCR), and western blot analysis to measure the activation of MAPKs. Cells were treated with SMGGT 1 h prior to the addition of 50 nM of PMA and $1{\mu}M$ of A23187. Cell viability was measured by MTS assay. The investigation focused on whether SMGGT inhibited the expressions of interleukin-6 (IL-6), interleukin-8 (IL-8) and mitogen-activated protein kinases (MAPKs) in PMA+A23187-stimulated mast cells. Results : SMGGT has no cytotoxicity at examined concentration (100, 250, and $500{\mu}g/ml$). Also, gene expression of IL-6 and IL-8 in HMC-1 cells stimulated by PMA+A23187 was down regulated by SMGGT. Furthermore, SMGGT suppressed the PMA+A23187-induced phosphorylation of extracellular signal-regulated kinase (ERK) and c-jun N-terminal Kinase(JNK). But, SMGGT could not regulate phosphorylation of p38 MAPK. Conclusions : These results suggest that SMGGT has inhibitory effects on PMA+A23187-induced IL-6 and IL-8 production. These inhibitory effects occur through blockades on the phosphorylation of ERK and JNK.
Objectives : This study aimed to investigate the unknown mechanisms behind the anti- inflammatory activity of Hyeonto-dan(HT) 70% ethanol extract on LPS-stimulated RAW 264.7 cells. Methods : Cells were treated with Hyeonto-dan 1 h prior to addition of 200 ng/mL of LPS. Cell viability was measured by the MTS assay. Nitric oxide levels were determined by the Griess assay. $PGE_2$ were measured using EIA kit. Pro-inflammatory cytokine production was measured by the enzyme-linked immunosorbent assay (ELISA). The expression of COX-2, iNOS, and MAPKs was investigated by Western blot, qRT-PCR. $NF-{\kappa}B$/p65 localization and interaction of the TLR-4 receptor with LPS was examined by immunofluorescence assays. Results : Hyeonto-dan had no cytotoxicity at the measured concentration. Hyeonto-dan inhibited NO production and pro-inflammatory cytokines such as IL-6, $TNF-{\alpha}$, and PGE2 as well as the protein and mRNA expression of iNOS and COX-2. Moreover, Hyeonto-dan inhibited the interaction between LPS and TLR-4 in murine macrophages. It suppressed phosphorylation of extracellular signal-regulated kinase (ERK 1/2), c-jun N-terminal kinase (JNK 1/2) and p38. Finally, it inhibited translocation of $NF-{\kappa}B$ in response to competitive LPS. Conclusions : Based on the results of this study, Hyeonto-dan inhibited the binding of TLR-4 receptor to LPS and inhibited the phosphorylation of extracellular signaling pathway MAPKs. These inhibitory effects are thought that the amount of $NF-{\kappa}B$ delivered to the nucleus was decreased and the inflammatory reaction was prevented by decreasing the production of LPS-induced $PGE_2$, NO, IL-6 and $TNF-{\alpha}$.
Cholesterol inhibitory activity was investigated to develop the functional food from edible forest resources such as Allium victorialis var. platyphyllum and other 12 species. Among tested samples by enzyme-linked immunosorbant assay (ELISA), leaf extracts of A. victorialis var. platyphyllum inhibited 73.9% of the activities of 3-hydroxy-3-methylglutaryl coenzyme A reductase (HMG-CoA reductase) which is the highly regulated and major rate-limiting of the cholesterol biosynthesis pathway. Moreover, those extracts inhibited 76.7% of squalene synthase which catalyzes the head-to-head condensation of two farnesyl pyrophosphate molecules to form squalene in the biosynthesis of cholesterol. In order to find out the compounds which would play a key role in inhibitory activity of cholesterol, kaempferol and quercetin were isolated from the dichloromethane soluble fraction of extracts of A. victorialis var. platyphyllum. Kampferol, quercetin and each soluble fraction was also subjected to the test of the mRNA expression of HMG-CoA reductase and squalene synthase by reverse transcriptase-polymerase chain reaction (RT-PCR) assay, respectively. By treating both enzymes with 10 ㎍/㎖ of kaempferol and quercetin for 24 hours, respectively, the mRNA expression was not observed, suggesting that both compounds inhibited the biosynthesis of cholesterol at mRNA level. In this regard, it could be inferred that cholesterol inhibitory activity of A. victorialis var. platyphyllum was derived from kaempferol and quercetin. Both compounds have already been found in many plant extracts including hardwood and softwood, but it might be first known that they have cholesterol inhibitory activity.
Jin-kwan Choi;Won-kyung Yang;Su-won Lee;Seong-cheon Woo;Seung-hyung Kim;Yang-chun Park
The Journal of Internal Korean Medicine
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v.45
no.1
/
pp.11-30
/
2024
Objectives: This study evaluated the effects of Ssanghwa-tang (SHT) on lung injury and muscle loss in a COPD mouse model. Methods: C57BL/6 mice were challenged with cigarette smoke extract and lipopolysaccharide, and then treated with two concentrations of SHT (250 and 500 mg/kg). After sacrifice, the bronchoalveolar lavage fluid (BALF) or lung tissue was analyzed by cytospin, ELISA, real-time PCR, flow cytometry analysis, and H&E and Masson's trichrome staining. The grip strength of COPD mice was measured using a grip strength meter. The running time of COPD mice was measured by a treadmill test. Muscle tissue of the quadriceps was stained with H&E and Masson's trichrome staining. Results: SHT significantly inhibited the increase in neutrophil numbers in BALF and significantly decreased immune cell activity in BALF and lung tissue. It also significantly inhibited the increase in TNF-α, IL-17, and MIP2 in BALF. Real-time PCR analysis revealed that the mRNA expression of TNF-α, IL-17, MIP2, and TRPV1 in lung tissue showed a significant decrease compared with the control group. Lung tissue damage was significantly reduced in the histological analysis. The grip strength and running time of the COPD mice showed a significant decrease compared with the control group. In histological staining, SHT was found to reduce the damage to muscle tissue. Conclusions: This study indicates that SHT can be used as a therapeutic agent for COPD patients by inhibiting lung injury and muscle loss.
The protein encoded by the Gene Associated with Retinoid-Interferon-Induced Mortality-19 (GRIM-19) is located in the mitochondrial inner membrane and is homologous to the NADH dehydrogenase 1-alpha subcomplex subunit 13 of the electron transport chain. Multiple sclerosis (MS) is a demyelinating disease that damages the brain and spinal cord. Although both the cause and mechanism of MS progression remain unclear, it is accepted that an immune disorder is involved. We explored whether GRIM-19 ameliorated MS by increasing the levels of inflammatory cytokines and immune cells; we used a mouse model of experimental autoimmune encephalomyelitis (EAE) to this end. Six-to-eight-week-old male C57BL/6, IFNγ-knockout (KO), and GRIM-19 transgenic mice were used; EAE was induced in all strains. A GRIM-19 overexpression vector (GRIM19 OVN) was electrophoretically injected intravenously. The levels of Th1 and Th17 cells were measured via flow cytometry, immunofluorescence, and immunohistochemical analysis. IL-17A and IFNγ expression levels were assessed via ELISA and quantitative PCR. IL-17A expression decreased and IFNγ expression increased in EAE mice that received injections of the GRIM-19 OVN. GRIM19 transgenic mice expressed more IFNγ than did wild-type mice; this inhibited EAE development. However, the effect of GRIM-19 overexpression on the EAE of IFNγ-KO mice did not differ from that of the empty vector. GRIM-19 expression was therapeutic for EAE mice, elevating the IFNγ level. GRIM-19 regulated the Th17/Treg cell balance.
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