• Title/Summary/Keyword: Th1 cytokines

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The Effects of Alismatis Rhizoma Extract on Allergic Inflammation in RBL-2H3 Mast Cells and OVA/alum-Sensitized Mice (택사 (澤瀉, Alismatis Rhizoma) 추출물이 RBL-2H3 비만세포와 OVA/alum 감작 생쥐의 알레르기 염증 반응에 미치는 영향)

  • Song, Ji Hyun;Lee, Jin Hwa;Kim, Eun Jin;Kim, Yun Hee
    • The Journal of Pediatrics of Korean Medicine
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    • v.32 no.3
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    • pp.1-15
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    • 2018
  • Objectives Alismatis Rhizoma has been known to suppress inflammation and allergic reaction. However, the cellular target of Alismatis Rhizoma and its mechanism of action remain unclear. This study was designed to examine the effect of Alismatis Rhizoma extract (ALC) on the RBL-2H3 mast cells in vitro and on the OVA/alum sensitized mice ex vivo. Methods In the study, RBL-2H3 mast cells were cultured in minimal essential medium (MEM) for 24 hours, and treated separately with cyclosporin A and varying doses of ALC, and then stimulated with Phorbol 12-myristate 13-acetate (PMA) (50 ng/ml) and Ionomycin ($0.5{\mu}M$). The levels of IL-13, IL-4 were measured by ELISA analysis. The mRNA levels of IL-4, IL-5, IL-6, IL-13, GM-CSF, $TNF-{\alpha}$ were analyzed with Real-time PCR. Also, manifestations of MAPKs transcription factors and $NF-{\kappa}B$ p65 translocation were analyzed by western blotting in vitro. Subsequently, for ex vivo experiment, we induced allergic inflammation on Balb/c mice by OVA/alum and administered ALC orally. And we measured serum OVA-specific IgE level and IL-4, IL-13 in the splenocyte culture supernatant by ELISA analysis. Results ALC was shown to suppress mRNA expression of IL-4, IL-5, IL-6, IL-13, GM-CSF, $TNF-{\alpha}$, and to inhibit the IL-13, IL-4 production. Also ALC reduced an activation of mast cells specific signal MAPKs transcription factors and $NF-{\kappa}B$ p65 from the western blot analysis in in vitro experiment. In ex vivo, ALC oral adminstration decreased the level of OVA-specific IgE in serum, and IL-4, IL-13 in the splenocyte culture supernatant. Conclusions ALC is shown to reduce inflammation and allergic response by suppressing Th2 cytokines through the regulation of transcription factors MAPKs and $NF-{\kappa}B$ p65 in mast cells. Administration of ALC suppressed OVA-specific IgE in ovalbumin allergy model through the inhibition of Th2 cytokine. In conclusion, ALC can be considered as an effective treatment for allergic diseases such as atopic dermatitis.

Analysis of Immune Response in Dogs with Chronic Inflammatory Skin Disease (만성 피부 염증소견을 보인 개의 면역학적 특성 분석 연구)

  • Cho, Sun-Ju;Koh, Min-Soo;Jung, Bock-Gie;Ko, Jae-Hyung;Yoon, So-Rah;Han, Dong-Un;Lee, Bong-Joo
    • Journal of Veterinary Clinics
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    • v.26 no.5
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    • pp.433-440
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    • 2009
  • High levels of inflammatory cytokines were proposed contributors to the pathogenesis of a various inflammatory skin disorders. Therefore, investigating the immune response of the inflammatory skin disorder allows a better understanding of pathogenesis of a various inflammatory skin disorders and therapeutic approaches. The aim of this study was to analyze of the immune response in dogs with chronic inflammatory skin disease. To this aim, the present study evaluated relative mRNA expression of canine $IFN-{\gamma}$, IL-4, $TGF-{\beta}$ and IL-10 using TaqMan realtime PCR assays and semi-quantitative RT-PCR in freshly isolated peripheral blood mononuclear cells from twenty dogs with chronic inflammatory skin disease and ten normal dogs. The relative mRNA expression levels of IL-4 mRNA were significantly higher in dogs with chronic inflammatory skin disease than those in normal dogs (P < 0.01). The results of present study also showed a tendency towards increased expression of IL-10 transcripts in dogs with chronic inflammatory skin disease. However, there were no significant differences in the levels $IFN-{\gamma},\;TGF-{\beta}$ between normal and chronically inflammed dogs. In addition, the concentration of serum IgE was significantly increased in dogs with chronic inflammatory skin disease compared with those in normal dogs (P < 0.01). In histopathological examination, we found that there were markedly increased mast cell counts in chronically inflammed dogs (P < 0.05). These results suggest that the pathogenesis of chronic inflammatory skin disease might be associated with a T-cell mediated inflammatory responses characterized by a Th2-skewed immune response. Based on these results, the modulation of Th1/Th2 balance may be an effective therapeutic strategy for the treatment of chronic inflammatory skin disease.

Effects of a Tetramethoxyhydroxyflavone on the Expression of Inflammatory Mediators in LPS-Treated Human Synovial Fibroblast and Macrophage Cells

  • Yoon, Do-Young;Cho, Min-Chul;Kim, Jung-Hee;Kim, Eun-Jin;Kang, Jeong-Woo;Seo, Eun-Hee;Shim, Jung-Hyun;Kim, Soo-Hyun;Lee, Hee-Gu;Oh, Goo-Taeg;Hong, Jin-Tae;Park, Joo-Won;Kim, Jong-Wan
    • Journal of Microbiology and Biotechnology
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    • v.18 no.4
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    • pp.686-694
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    • 2008
  • The inhibitory effects of 5,6,3',5'-tetramethoxy 7,4'-hydroxyflavone (labeled as p7F) were elucidated on the productions of proinflammatory cytokines as well as inflammatory mediators in human synovial fibroblasts and macrophage cells. p7F inhibited IL-1${\beta}$ or TNF-${\alpha}$ induced expressions of inflammatory mediators (ICAM-1, COX-2, and iNOS). p7F also inhibited LPS-induced productions of nitric oxide and prostaglandin $E_2$ in RAW 264.7 cells. In order to investigate whether p7F would inhibit IL-1 signaling, p7F was added to the D10S Th2 cell line (which is responsive to only IL-1${\beta}$ and thus proliferates), revealing that p7F inhibited IL-1${\beta}$-induced proliferation of D10S Th2 cells in a dose-response manner. A flow cytometric analysis revealed that p7F reduced the intracellular level of free radical oxygen species in RAW 264.7 cells treated with hydrogen peroxide. p7F inhibited IkB degradation and NF-${\kappa}$B activation in macrophage cells treated with LPS, supporting that p7F could inhibit signaling mediated via toll-like receptor. Taken together, p7F has inhibitory effects on LPS-induced productions of inflammatory mediators on human synovial fibroblasts and macrophage cells and thus has the potential to be an anti-inflammatory agent for inhibiting inflammatory responses.

The Inhibitory Effects of $Chrthami$ Semen Oil Pharmacopuncture (CSOP) on Synovial Membranes in Type II Collagen-Induced Arthritis Mice (홍화자유약침이 CIA 모델 생쥐의 윤활관절막 손상 억제에 미치는 영향)

  • Back, Seong-Wook;Kim, Eun-Jung;Hwang, Ji-Hoo;Yoon, Jong-Hwa;Lee, Seung-Deok;Kim, Kap-Sung
    • Journal of Acupuncture Research
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    • v.29 no.1
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    • pp.115-125
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    • 2012
  • Objectives : The purpose of this study is to observe the inhibitory effects of $Chrthami$ semen oil pharmacopuncture(CSOP) on CIA (collagen-induced arthritis) mice. Materials and Methods : Two types of experiments were conducted: $in$ $vitro$ assay, inhibition of MIF mRNA and TNF-${\alpha}$ mRNA expressions in synovial membranes was observed, and $in$ $vivo$ assay, $1{\mu}{\ell}/kg$ CSOP was injected every day to the left $Weizhong$ ($BL_{40}$) from day 3 to 21 after induction of CIA, and changes in paw edema, apical surface morphology, neovascularization in synovial membranes, fibrosis, pro-inflammatory cytokines production, Th-1 differentiation, and anti-inflammatory effect were investigated. Results : 1. In synoviocytes of the CIA mice treated with CSOP, MIF mRNA and TNF-${\alpha}$ mRNA expressions were down-regulated in a dose-dependent manner. 2. Paw edema of the CIA mice treated with CSOP was diminished. 3. Tissue injury in the synovial membranes, capillary distribution and fibrosis were reduced in CSOP-treated mice. 4. MIF, TNF-${\alpha}$, IL-6, MMP-9 expressions were repressed in CSOP-treated mice during the experiment to observe the inhibitory effect on cytokines production in early stage RA. 5. IL-12 and CD28 were reduced in CSOP-treated mice during the observation of inhibitory effect on Th 1 differentiation. 6. PPAR-${\gamma}$ was increased during the experiment to observe the anti-inflammatory effect of CSOP. Conclusions : The results may suggest that administration treatment using $Chrthami$ semen oil pharmacopuncture decreases the inflammatory response on an Animal Model with CIA.

Caspase-1 Independent Viral Clearance and Adaptive Immunity Against Mucosal Respiratory Syncytial Virus Infection

  • Shim, Ye Ri;Lee, Heung Kyu
    • IMMUNE NETWORK
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    • v.15 no.2
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    • pp.73-82
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    • 2015
  • Respiratory syncytial virus (RSV) infection is recognized by the innate immune system through Toll like receptors (TLRs) and retinoic acid inducible gene I. These pathways lead to the activation of type I interferons and resistance to infection. In contrast to TLRs, very few studies have examined the role of NOD-like receptors in viral recognition and induction of adaptive immune responses to RSV. Caspase-1 plays an essential role in the immune response via the maturation of the proinflammatory cytokines IL-$1{\beta}$ and IL-18. However, the role of caspase-1 in RSV infection in vivo is unknown. We demonstrate that RSV infection induces IL-$1{\beta}$ secretion and that caspase-1 deficiency in bone marrow derived dendritic cells leads to defective IL-$1{\beta}$ production, while normal RSV viral clearance and T cell responses are observed in caspase-1 deficient mice following respiratory infection with RSV. The frequencies of IFN-${\gamma}$ producing or RSV specific T cells in lungs from caspase-1 deficient mice are not impaired. In addition, we demonstrate that caspase-1 deficient neonatal or young mice also exhibit normal immune responses. Furthermore, we find that IL-1R deficient mice infected with RSV exhibit normal Th1 and cytotoxic T lymphocytes (CTL) immune responses. Collectively, these results demonstrate that in contrast to TLR pathways, caspase-1 might not play a central role in the induction of Th1 and CTL immune responses to RSV.

Effects of Orostachys Japhonicus Herbal-Acupuncture on Transferred Hepatic Cancer of Mouse Induced by Colon26-L5 Human Colon Cancer Cells (와송(瓦松) 약침(藥鍼)이 mouse의 간전이 암모델에 미치는 영향)

  • Sohn, Seong-Hyoun;Park, Hee-Soo
    • Journal of Acupuncture Research
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    • v.23 no.6
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    • pp.61-76
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    • 2006
  • To study the effects of anti-cancer, anti-metastasis and immune response improvement effects of herbal-accupunture with Orostachys japhonicus A.Berger, infusion solution put into Kansu(BL18) of mouse induced by Colon26-L5 human colon cancer cells, which are corresponding to humanbody. We observed the change of body weight, surviving number, median surviving time, increase of life span, changes in amount of leukocyte, erythrocyte, platelet, total protein, creatinine, glucose and LDH, weight of spleen and kidney, histological analysis on tissue metastasis of liver, splenic cell proliferation, the expression of cytokine gene, the number of CD4+, CD8+, CD9+ and NK cell, and concluded like this. The results were obtained as follows ; 1. In acute and sub-acute cytotoxicity experiment, significantly signs were not appeared in all groups. 2. Antimetastatic experiment in vitro and in vivo showed that Orostachys Japhonicus A.Berger Herbal-acupuncture at Kansu(BL18) has antimetastatic effects. 3. The spleen cells proliferation of the experimental groups treated with Orostachys Japhonicus A.Berger infusion solution extract has increased significantly compared with that of the control group. 4. As compared with control, the population of total T cell, helper T cell, cytotoxic T cell and macrophage were increased. 5. The production of Th 1 type cytokines from splenocyte and cytokines which is associated with anti-tumor activity form macrophage were increased significantly. Above the results revealed that herbal-accupunture with Orostachys Japhonicus A.Berger infusion solution has effects of anti-cancer, anti-metastasis and immune response improvement.

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Effect of negative therapy at back meridian points on blood gas components and immune functions in male college students (배부(背部) 경혈(經穴)에 부항요법(附缸療法) 시술(施術)이 남자대학생(男子大學生)의 면역기능(免疫機能)에 미치는 영향(影響))

  • Oh, Jae-Keun;Kim, Sung-Soo
    • The Journal of Korean Medicine
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    • v.20 no.1 s.37
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    • pp.75-83
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    • 1999
  • To investigate the effects of negative therapy at back meridian points on blood gas components and immune functions in male college students, this study was conducted on treatment types(abdomen group and back group) at three sampling times (before, post-2 wks and post-4 wks) by using $2{\times}3$ factoral design. Blood gas $components(pH,\;PCO_2,\;PO_2,\;HCO_3^-,\;O_2SAT,\;BE)$, red blood cell, hematocrit, hemoglobin, white blood cell and subsets(neutrophil, basophil, eosinophil. lymphocyte, monocyte), total T cells, helper T cells, suppressor T cells, Th/Ts ratio, total B cells, serum immunoglobulin levels (IgG, IgA, IgM, IgD, IgE), Cytokines(Interlukin$-1{\beta}$, -2, -4, 2 receptor, -6 and ${\gamma}$-interferon), NK cells were measured. Collected with data were analyzed statistically by repealed measured ANOVA. The pattern of change between two groups for hematocrit, hemoglobin, suppressor T cells, interleukin-6, ${\gamma}-interferon$, NK cells at post-2 weeks and BE, lymphocyte, basophil at post-4 weeks was significantly different(p<0.05) And also the pattern of change over time for ${HCO_3}^-$(2 wks vs 4 wks), WBC, neutrophil, lymphocyte(0 wks vs 2 wks and 2 wks vs 4 wks) was significantly different(p<0.05). In summary, these data suggest that negative therapy at back meridian points had an effect on blood gas components and immune functions in male college students because practicing negative therapy at back meridian points was not associated with changes of all blood gas components and immune factors but associated with changes of BE, hematocrit, hemoglobin, WBC. neutrophil, lymphocyte, interleukin-6. ${\gamma}-interferon$, NK cells.

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Wogonin inhibits Cytokine-induced TARC/CCL17 Expression by Suppression of NF-${\kappa}B$ activation via p38 MAP kinase Signalning Pathways in HaCaT Keratinocytes

  • Jang, Seon-Il
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.21 no.4
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    • pp.1017-1024
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    • 2007
  • Thymus and activation-regulated chemokine (TARC/CCL-17), produced by keratinocytes, is a CC chemokine known to selectively Th2 type T cells via $CCR4^+$ and is implicated in the development of atopic dermatitis (AD). TARC/CCL17 expression was induced by cytokines such as tumor necrosis factor-${\alpha}$ (TNF-${\alpha}$) and interferon-${\gamma}$ (IFN-${\gamma}$). We recently found that the wogonin, a flavone isolated from Scutellaria baicalensis, suppressed TARC expression via heme oxygenase 1 (HO1) in human keratinocytes induced with mite antigen. However, little is known about the inhibitory mechanism of wogonin on TARC/CCL-17 expression stimulated with cytokines. To investigate the inhibitory mechanism, I determined the inhibitory effects of wogonin on the activation of nuclear factor-${\kappa}B$ (NF-${\kappa}B$) and $I{\kappa}B{\alpha}$ phosphorylation, and also examined the activation of p38 MAP kainase in HaCaT keratinocytes stimulated with TNF-${\alpha}$ and IFN-${\gamma}$. Wogonin inhibited NF-${\kappa}B$-DNA complex, NF-${\kappa}B$ binding activity, and the phosphorylation of $I{\kappa}B{\alpha}$ in a dose dependent manner. Wogonin also inhibited the translocation of NF-${\kappa}B$ from cytosol to nucleus. Moreover, the phosphorylation of of p38 MAP kinase in the TNF-${\alpha}$ and IFN-${\gamma}$-stimulated HaCaT keratinocytes were suppressed by wogonin in a dose dependent manner. These results suggest that wogonin may inhibit cytokine-induced NF-${\kappa}B$ activation by $I{\kappa}B{\alpha}$ degradation via suppression of p38 MAP kinase signaling pathway in keratinocytes and modulation of wogonin signaling pathway may be beneficial for the treatment of AD.

Adipose tissue-derived mesenchymal stem cells reduce endometriosis cellular proliferation through their anti-inflammatory effects

  • Meligy, Fatma Y.;Elgamal, Dalia A.;Abdelzaher, Lobna A.;Khashbah, Maha Y.;El-Mokhtar, Mohamed A.;Sayed, Ayat A.;Refaiy, Abeer M.;Othman, Essam R.
    • Clinical and Experimental Reproductive Medicine
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    • v.48 no.4
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    • pp.322-336
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    • 2021
  • Objective: Endometriosis is a chronic debilitating inflammatory condition characterized by the presence of endometrial tissues outside the uterine cavity. Pelvic soreness and infertility are the usual association. Due to the poor effectiveness of the hormone therapy and the high incidence of recurrence following surgical excision, there is no single effective option for management of endometriosis. Mesenchymal stem cells (MSCs) are multipotent stromal cells studied for their broad immunoregulatory and anti-inflammatory properties; however, their efficiency in endometriosis cases is still a controversial issue. Our study aim was to evaluate whether adipose tissue-derived MSCs (AD-MSCs) could help with endometriosis through their studied anti-inflammatory role. Methods: Female Wistar rats weighting 180 to 250 g were randomly divided into two groups: group 1, endometriosis group; established by transplanting autologous uterine tissue into rats' peritoneal cavities and group 2, stem cell treated group; treated with AD-MSCs on the 5th day after induction of endometriosis. The proliferative activity of the endometriosis lesions was evaluated through Ki67 staining. Quantitative estimation of interferon γ, tumor necrosis factor-α, interleukin (IL)-6, IL-1β, IL-10, and transforming growth factor β expression, as well as immunohistochemical detection of CD68 positive macrophages, were used to assess the inflammatory status. Results: The size and proliferative activity of endometriosis lesions were significantly reduced in the stem cell treated group. Stem cells efficiently mitigated endometriosis associated chronic inflammatory reactions estimated through reduction of CD68 positive macrophages and the expression of the proinflammatory cytokines. Conclusion: Stem cell therapy can be considered a novel remedy in endometriosis possibly through its anti-inflammatory and antiproliferative properties.

Cytokine production profiles of a model for fluorouracil and UVB-induced discoid lupus erythematosus in TCR $\alpha$ chain knockout mouse

  • Yoshimasu, Takashi;Hiroi, Akihisa;Ohtani, Toshio;Uede, Koji;Furukawa, Fukumi
    • Journal of Photoscience
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    • v.9 no.2
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    • pp.494-496
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    • 2002
  • Fluorouracil (FU) is well known to induce discoid lupus-like eruption at the sun exposure sites in Japan. It means the associations of UVB with drug induced DLE. It is still obscure which cytokines are involved in the development of DLE. To address the issue, we established a murine model of FU and UVB-induced discoid lupus and could show the Th1 dominant cytokine profiles in DLE model of TCR $\alpha$ chain KO mice treated with FU and UVB.

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