• Title/Summary/Keyword: Immune modulator

Search Result 74, Processing Time 0.034 seconds

Foeniculum vulgare Mill. Protects against Lipopolysaccharide-induced Acute Lung Injury in Mice through ERK-dependent NF-kB Activation

  • Lee, Hui Su;Kang, Purum;Kim, Ka Young;Seol, Geun Hee
    • The Korean Journal of Physiology and Pharmacology
    • /
    • v.19 no.2
    • /
    • pp.183-189
    • /
    • 2015
  • Foeniculum vulgare Mill. (fennel) is used to flavor food, in cosmetics, as an antioxidant, and to treat microbial, diabetic and common inflammation. No study to date, however, has assessed the anti-inflammatory effects of fennel in experimental models of inflammation. The aims of this study were to investigate the anti-inflammatory effects of fennel in model of lipopolysaccharide (LPS)-induced acute lung injury. Mice were randomly assigned to seven groups (n=7~10). In five groups, the mice were intraperitoneally injected with 1% Tween 80-saline (vehicle), fennel (125, 250, $500{\mu}l/kg$), or dexamethasone (1 mg/kg), followed 1 h later by intratracheal instillation of LPS (1.5 mg/kg). In two groups, the mice were intraperitoneally injected with vehicle or fennel ($250{\mu}l/kg$), followed 1 h later by intratracheal instillation of sterile saline. Mice were sacrificed 4 h later, and bronchoalveolar lavage fluid (BALF) and lung tissues were obtained. Fennel significantly and dose-dependently reduced LDH activity and immune cell numbers in LPS treated mice. In addition fennel effectively suppressed the LPS-induced increases in the production of the inflammatory cytokines interleukin-6 and tumor necrosis factor-alpha, with $500{\mu}l/kg$ fennel showing maximal reduction. Fennel also significantly and dose-dependently reduced the activity of the proinflammatory mediator matrix metalloproteinase 9 and the immune modulator nitric oxide (NO). Assessments of the involvement of the MAPK signaling pathway showed that fennel significantly decreased the LPS-induced phosphorylation of ERK. Fennel effectively blocked the inflammatory processes induced by LPS, by regulating pro-inflammatory cytokine production, transcription factors, and NO.

Modulation of Aqueous Extracted Angelicae sinensis Radix on Nitric Oxide Production and Pro-inflammatory Cytokine Gene Expressions in RAW 264.7 Macrophage Cells

  • Lee Young Sun;Han Ok Kyung;Shin Sang Woo;Park Jong Hyun;Kwon Young Kyu
    • Journal of Physiology & Pathology in Korean Medicine
    • /
    • v.17 no.6
    • /
    • pp.1514-1518
    • /
    • 2003
  • Angelica sinensis radix, Danggui, is a traditional oriental medication, which has been used to modulate immune response. We report here that aqueous extract of Angelica sinensis radix (ASR) can induces NO production, and inhibit LPS-induced NO production in dose-dependent manner in RAW 264.7 macrophage cells. ASR also induces iNOS mRNA and iNOS protein expression, and exhibit inhibitory effect on iNOS mRNA and protein expression in a dose-dependent manner in LPS-stimulated RAW 264.7 macrophage cells. Cytokines involved in the regulation of inflammatory reaction and immune response may play a role in the pathogenesis. ASR induces. pro-inflammatory cytokine gene expression (IL-1α, IL-1β and IL-6 gene) in a dose-dependent manner, and inhibits the expressions of these cytokines in LPS-stimulated RAW 264.7 macrophage cells. These data indicate that (1) ASR may be a potential therapeutic modulator of NO synthesis in various pathological conditions, and (2) the immunomodulatory effects of ASR may be, in part, associated with the inducing or suppression of pro-inflammatory cytokine gene expressions.

Korean Red Ginseng exhibits no significant adverse effect on disease activity in patients with rheumatoid arthritis: a randomized, double-blind, crossover study

  • Cho, Soo-Kyung;Kim, Dam;Yoo, Dasomi;Jang, Eun Jin;Jun, Jae-Bum;Sung, Yoon-Kyoung
    • Journal of Ginseng Research
    • /
    • v.42 no.2
    • /
    • pp.144-148
    • /
    • 2018
  • Background: Panax ginseng is a well-known immune modulator, and there is concern that its immune-enhancing effects may negatively affect patients with rheumatoid arthritis (RA) by worsening symptoms or increasing the risk of adverse effects from other drugs. In this randomized, crossover clinical trial, we evaluated the impact of Korean Red Ginseng (KRG) on disease activity and safety in RA patients. Methods: A total of 80 female RA patients were randomly assigned to either the KRG (2 g/d, n = 40) treatment or placebo (n = 40) groups for 8 wk, followed by crossover to the other treatment group for an additional 8 wk. The primary outcome was the disease flare rate, defined as worsening disease activity according to the disease activity score 28 joints-erythrocyte sedimentation rate (DAS28-ESR). The secondary outcomes were development of adverse events (AEs) and patient reported outcomes. Outcomes were evaluated at baseline and 8 wk and 16 wk. The outcomes were compared using the Chi-square test. Results: Of the 80 patients, 70 completed the full study. Their mean age was 51.9 yr, and most exhibited low disease activity (mean DAS28-ESR $3.5{\pm}1.0$) at enrollment. After intervention, the flare rate was 3.7% in each group. During KRG treatment, 10 AEs were reported, while five AEs were developed with placebo; however, this difference was not statistically significant (p = 0.16). Gastrointestinal- and nervous system-related symptoms were frequent in the KRG group. Conclusion: KRG is not significantly associated with either disease flare rate or the rate of AE development in RA patients.

Parasitic Helminth Cystatin Inhibits DSS-Induced Intestinal Inflammation Via IL-$10^+F4/80^+$ Macrophage Recruitment

  • Jang, Sung-Won;Cho, Min-Kyoung;Park, Mi-Kyung;Kang, Shin-Ae;Na, Byoung-Kuk;Ahn, Soon-Cheol;Kim, Dong-Hee;Yu, Hak-Sun
    • Parasites, Hosts and Diseases
    • /
    • v.49 no.3
    • /
    • pp.245-254
    • /
    • 2011
  • Many immune down-regulatory molecules have been isolated from parasites, including cystatin (cystain protease inhibitor). In a previous study, we isolated and characterized Type I cystatin (CsStefin-1) of the liver fluke, Clonorchis sinensis. To investigate whether the CsStefin-1 might be a new host immune modulator, we induced intestinal inflammation in mice by dextran sodium sulfate (DSS) and treated them with recombinant CsStefin-1 (rCsStefin-1). The disease activity index (DAI) increased in DSS only-treated mice. In contrast, the DAI value was significantly reduced in rCsStefin-1-treated mice than DSS only-treated mice. In addition, the colon length of DSS only-treated mice was shorter than that of rCsStefin-1 treated mice. The secretion levels of IFN-${\gamma}$ and TNF-${\alpha}$ in the spleen and mesenteric lymph nodes (MLNs) were significantly increased by DSS treatment, but the level of TNF-${\alpha}$ in MLNs was significantly decreased by rCsStefin-1 treatment. IL-10 production in both spleen and MLNs was significantly increased, and IL-$10^+F4/80^+$ macrophage cells were significantly increased in the spleen and MLNs of rCsStefin-1 treated mice after DSS treatment. In conclusion, rCsStefin-1 could reduce the intestinal inflammation occurring after DSS treatment, these effects might be related with recruitment of IL-10 secreting macrophages.

Cha-ga Mushroom Water Extract induces G0/G1 Arrest in B16-F10 Melanoma cells (차가버섯추출물에 의한 흑색종의 세포주기 억제효과)

  • Youn, Myung-Ja;Song, Jeong-Hoon
    • Journal of Physiology & Pathology in Korean Medicine
    • /
    • v.21 no.1
    • /
    • pp.204-208
    • /
    • 2007
  • Chaga mushroom extract is well known as immune modulator and anti-cancer agent. However, the molecular mechanism by which Chaga exerts cell cycle arrest and apoptosis of cancer cells is poorly understood. In this study, we demonstrated anti-proliferative effects of Chaga extract on murine melanoma B16 cells. Chaga extract dose-dependently inhibited cell growth along with the arrest of G0/G1 phase and the induction of apoptotic cell death. Treatment with Chaga extract resulted in a decrease of cyclin E, cyclin D1, cdk 2, cdk 4 expression levels. Furthermore, in vivo inoculation study of B16 melanoma cells into Balb/c mice Chaga extract markedly suppressed the metastatic growth of tumor cells (6 folds, p<0.05,). These results indicate that Chaga mushroom extract induces apoptosis of B16 melanoma cells through arrest of G0/G1 phase in cell cycle.

Nucleotide-Binding Domain and Leucine-Rich Repeat Containing Receptor (NLR) and its Signaling Pathway

  • Park, Sangwook;Gwon, Sun-Yeong;Rhee, Ki-Jong
    • Biomedical Science Letters
    • /
    • v.19 no.3
    • /
    • pp.173-179
    • /
    • 2013
  • Since the identification and characterization of toll-like receptors (TLR) in Drosophila, numerous scientific studies have examined the role of TLRs in host innate immunity. Recent studies have suggested a convergence of the nuclear factor kappa B (NF-${\kappa}B$) signaling and cytokine production regulated by the cytosolic elicitor known as NLRs (nucleotide-binding domain and leucine-rich repeat containing domain receptors) as a key modulator in inflammatory diseases. Among the NLRs, NOD1 and NOD2 have been intensively investigated for its role in inflammatory bowel disease (IBD). On the other hand, NLRs such as NLRP3, NLRP1, and NLRC4 (also known as IPAF) have been identified to form the inflammasome to activate downstream signaling molecules in response to pathogenic microbes. There is evidence to suggest that substantial crosstalk exists for the TLR and NLR signaling pathway in response to pathogen associated molecular pattern (PAMP). However, the substrate and the mechanistic role of NLRs are largely unknown in innate immune response. Understanding the signaling mechanisms by which NLRs recognize PAMP and other danger signals will shed light on elucidating the pathogenesis of various human inflammatory diseases such as IBD.

Anti-inflammatory Effect of MeOH Extracts of the Stem of Polygonum multiflorum in LPS-stimulated Mouse Peritoneal Macrophages

  • Cha, Dong-Seok;Jeon, Hoon
    • Natural Product Sciences
    • /
    • v.15 no.2
    • /
    • pp.83-89
    • /
    • 2009
  • Polygoni multiflori Ramulus (PM), the stem of Polygonum multiflorum Thunb. has been widely used as a traditional medicine for the treatment of lots of diseases. In macrophages, nitric oxide is released as an inflammatory mediator and has been proposed to be an important modulator of many pathophysiological conditions in inflammation. In the present study, it was investigated that the inhibitory effects on NO and proinflammatory cytokines such as tumor necrosis factor alpha (TNF-${\alpha}$), interleukin-6 (IL-6) and the mechanism of down-regulation of immune response by 85% methanol extracts of PM in mouse (C57BL/6) peritoneal macrophages. Extracts of PM (0.1, 1 mg/ml) suppressed NO production and showed inhibition of proinflammatory cytokines like TNF-${\alpha}$, IL-6 and it attenuated iNOS and COX-2 expression via down-regulation of NF-${\kappa}$B activation. The present results indicate that the 85% methanol extracts of PM has an inhibitory effect on the production of NO through down-regulation of iNOS expression in LPS stimulated mouse peritoneal macrophages and therefore may be beneficial in diseases which related to macrophage-mediated inflammatory disorders.

Immunomodulatory Effects of Zingiber officinale in Cyclophosphamide-induced Immunosuppress Mice (Cyclophosphamide로 유발된 면역억제 마우스에서 생강의 면역 억제 효과)

  • Koo, Sung-Wook;Lim, Mee-Kyung;Lee, Keun-Woo
    • Journal of Veterinary Clinics
    • /
    • v.32 no.1
    • /
    • pp.56-61
    • /
    • 2015
  • The object of this study was to find out the immunomodulatory effects of Ginger Aqueous extracts, as compared with that of ${\beta}$-glucan well-known an immune modulator, on the cyclophosphamide (CPA) induced immunosuppress mice. To induce immunosuppress, 150 and 110 mg/kg of CPA were dissolved in saline and injected intraperitoneally at 3 or 1 day before start of test article administration, respectively. ${\beta}$-glucan or gingers (125, 250, 500 mg/kg) were dosed, 4 times at 12-hr intervals starting 24hrs after last CPA-treatment. Distilled water was used as a vehicle and each groups were used 10 mice. As results of twice intraperitoneal CPA treatment, decreases in the body weight and gain, weight of thymus, spleen. However these CPA-induced immunosuppress changes were inhibited by treatment of three different dosages of ginger or ${\beta}$-glucan as compared with CPA control. Similar favorable inhibitory activities on weight and histopathological change of spleen and thymus induced CPA treatment were detected between ${\beta}$-glucan and ginger 250 mg/kg treated groups.

Polyacetylene Compound from Cirsium japonicum var. ussuriense Inhibits the LPS-Induced Inflammatory Reaction via Suppression of NF-κB Activity in RAW 264.7 Cells

  • Kang, Tae-Jin;Moon, Jung-Sun;Lee, Sook-Yeon;Yim, Dongs-Sool
    • Biomolecules & Therapeutics
    • /
    • v.19 no.1
    • /
    • pp.97-101
    • /
    • 2011
  • Cirsium japonicum var. ussuriense is known to have a variety of biological activities, including anti-inflammatory, analgesic activity and antipyretic activity. In this study we investigated the role of polyacetylene compound, 1-Heptadecene-11, 13-diyne-8, 9, 10-triol (PA) from the root of Cirsium japonicum var. ussuriense as an immune-modulator. PA was evaluated as inhibitors of some macrophage functions involved in the inflammatory process. We tested the effect of PA on the production of pro-inflammatory cytokines, interleukin-1beta (IL-$1{\beta}$) and tumor necrosis factor-alpha (TNF-$\alpha$), and nitric oxide (NO) in murine macrophage cell line, RAW264.7. There was no effect on cytokine production of macrophages by PA itself. However, PA inhibited lipopolysaccharide (LPS)-induced IL-$1{\beta}$ and TNF-$\alpha$ production by macrophages at a dose dependent manner. PA also suppressed the NO production of macrophages by LPS. LPS-induced NF-${\kappa}B$ activity was decreased by treatment of PA. Therefore, these results suggest that PA has anti-inflammatory effect by inhibiting the NF-${\kappa}B$ activation.

Rosa Damascene Mill. (Rose): A versatile herb in cosmetology

  • Ahmed, Yasmeen;Jamil, S.Shakir;Hashimi, Ayshah;Siraj, Mantasha Binth;Jahangir, Umar
    • CELLMED
    • /
    • v.9 no.4
    • /
    • pp.2.1-2.4
    • /
    • 2019
  • With the improvement of economic status and the desire for beauty, the interest in health and skin care is increasing. For these demands, since ages medicinal plants are in vogue. A variety of plants, cosmetics and foods with novel bioactive ingredients for skin care and beauty are under constant research and development. Skin is influenced by various factors such as Ultra-violet rays, stress, hormones and aging which together lead skin to lose elasticity, changes in pigmentation and wrinkle formation. Many medicinal plants have proven effects in skin care and beauty treatment. From this list of medicinal plants, one which is famous for its beauty, flavor and fragrance is Rosa damascene. Rosa damascene has many therapeutic action and postulated pharmacological studies such as anti-arthritic, anti-microbial, cardio protective, anti-inflammatory, antioxidant, analgesic, immune-modulator, gastro-protective, and skin ameliorative effect. Research in the field of Cosmetology has proven the effect of Rosa damascene in rehydrating skin, reducing scars and stretches, acne management, lowering skin pigmentation, delaying wrinkling and is recommended as a skin vitalizing agent. In this review, the morphology, chemical constituents, and some pharmacological activity are discussed.