• Title/Summary/Keyword: Inflammatory

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Regulatory roles of ginseng on inflammatory caspases, executioners of inflammasome activation

  • Yun, Miyong;Yi, Young-Su
    • Journal of Ginseng Research
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    • 제44권3호
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    • pp.373-385
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    • 2020
  • Inflammation is an immune response that protects against pathogens and cellular stress. The hallmark of inflammatory responses is inflammasome activation in response to various stimuli. This subsequently activates downstream effectors, that is, inflammatory caspases such as caspase-1, 4, 5, 11, and 12. Extensive efforts have been made on developing effective and safe anti-inflammatory therapeutics, and ginseng has long been traditionally used as efficacious and safe herbal medicine in treating various inflammatory and inflammation-mediated diseases. Many studies have successfully shown that ginseng plays an anti-inflammatory role by inhibiting inflammasomes and inflammasome-activated inflammatory caspases. This review discusses the regulatory roles of ginseng on inflammatory caspases in inflammatory responses and also suggests new research areas on the anti-inflammatory function of ginseng, which provides a novel insight into the development of ginseng as an effective and safe anti-inflammatory herbal medicine.

Role of inflammasomes in inflammatory autoimmune rheumatic diseases

  • Yi, Young-Su
    • The Korean Journal of Physiology and Pharmacology
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    • 제22권1호
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    • pp.1-15
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    • 2018
  • Inflammasomes are intracellular multiprotein complexes that coordinate anti-pathogenic host defense during inflammatory responses in myeloid cells, especially macrophages. Inflammasome activation leads to activation of caspase-1, resulting in the induction of pyroptosis and the secretion of pro-inflammatory cytokines including interleukin $(IL)-1{\beta}$ and IL-18. Although the inflammatory response is an innate host defense mechanism, chronic inflammation is the main cause of rheumatic diseases, such as rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), ankylosing spondylitis (AS), and $Sj{\ddot{o}}gren^{\prime}s$ syndrome (SS). Since rheumatic diseases are inflammatory/autoimmune disorders, it is reasonable to hypothesize that inflammasomes activated during the inflammatory response play a pivotal role in development and progression of these diseases. Indeed, previous studies have provided important observations that inflammasomes are actively involved in the pathogenesis of inflammatory/autoimmune rheumatic diseases. In this review, we summarize the current knowledge on several types of inflammasomes during macrophage-mediated inflammatory responses and discuss recent research regarding the role of inflammasomes in the pathogenesis of inflammatory/autoimmune rheumatic diseases. This avenue of research could provide new insights for the development of promising therapeutics to treat inflammatory/autoimmune rheumatic diseases.

Machine learning Anti-inflammatory Peptides Role in Recent Drug Discovery

  • Subathra Selvam
    • 통합자연과학논문집
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    • 제17권1호
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    • pp.21-30
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    • 2024
  • Several anti-inflammatory small molecules have been found in the process of the inflammatory response, and these small molecules have been used to treat some inflammatory and autoimmune diseases. Numerous tools for predicting anti-inflammatory peptides (AIPs) have emerged in recent years. However, conducting experimental validations in the lab is both resource-intensive and time-consuming. Current therapies for inflammatory and autoimmune disorders often involve nonspecific anti-inflammatory drugs and immunosuppressants, often with potential side effects. AIPs have been used in treating inflammatory illnesses like Alzheimer's disease and can limit the expression of inflammatory promoters. Recent advances in adverse incident predictions (AIPs) have been made, but it is crucial to acknowledge limitations and imperfections in existing methodologies.

RAW 264.7 cell의 염증반응에 대한 산열음자(散熱飮子)의 항염증 효과 (Effect of Sanyeoleumja on Inflammatory Response of RAW 264.7 Cells)

  • 김태연
    • 동의생리병리학회지
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    • 제34권1호
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    • pp.7-13
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    • 2020
  • Sanyeoleumja (SY) is the traditional Korean medicinal prescription for the treatment of inflammatory diseases of eyes. In this study, the anti-inflammatory effects of SY water extract were investigated. To measure the anti-inflammatory effects of SY, we examined the productions of inflammatory factor including nitric oxide (NO), prostaglandin E2 (PGE2), inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2), interleukin-6 (IL-6), interleukin-1β (IL-1β) in lipopolysaccharide (LPS)-induced RAW 264.7 cells. SY inhibited NO and PGE2 production in a dose dependent manner and decreased the protein and mRNA expression of iNOS and COX-2. Also, SY decreased the mRNA expression of interleukin-6 (IL-6) and interleukin-1β (IL-1β). In conclusion, SY downregulated LPS-induced inflammatory factor productions, which could be a clinical basis for inflammatory diseases.

Role of Salvia miltiorrhiza for Modulation of Th2-derived Cytokines in the Resolution of Inflammation

  • Moon, Sun-Hee;Shin, Seul-Mee;Kim, Seul-Ah;Oh, Hee-Eun;Han, Shin-Ha;Lee, Seung-Jeong;Kim, Kyung-Jae
    • IMMUNE NETWORK
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    • 제11권5호
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    • pp.288-298
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    • 2011
  • Background: Salvia miltiorrhiza (SM) has been used to treat inflammatory diseases including edema and arthritis; however, the anti-inflammatory mechanism of SM action remains unresolved. Methods: The effects of an ethanol extract of SM (ESM) on pro-inflammatory cytokines such as TNF-${\alpha}$, IL-$1{\beta}$, IL-6, and NO, and on anti-inflammatory cytokines including IL-4, IL-10, TGF-${\beta}$, and IL-1Ra have been studied in an attempt to elucidate the anti-inflammatory mechanism in murine macrophages. Results: ESM inhibited the production of pro-inflammatory cytokines via down-regulation of gene and protein expression whereas it increased the anti-inflammatory cytokines. Furthermore, ESM inhibited the expression of the chemokines, RANTES and CX3CL1, as well as of inflammatory mediators such as TLR-4 and $11{\beta}$-HSD1. Conclusion: These results indicated that the regulatory effects of ESM may be mediated though the suppression of pro-inflammatory cytokines as well as the induction of anti-inflammatory cytokines. Consequently, we speculate that ESM has therapeutic potential for inflammation-associated disorders.

Anti-Inflammatory Effects of Fermented Products with Avena sativa on RAW264.7 and HT-29 Cells via Inhibition of Inflammatory Mediators

  • Shin, Jihun;Lee, Mina
    • Natural Product Sciences
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    • 제26권3호
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    • pp.244-251
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    • 2020
  • This study investigated therapeutic candidates with anti-inflammatory potential among traditional dietary ingredients targeting inflammatory bowel disease (IBD). Both Avena sativa and traditional fermented products, such as Korean soy paste, are popular health foods. We investigated the anti-inflammatory effects of soy paste combined with A. sativa (KDA), compared with soy paste without A. sativa (KD) by evaluating the expression of pro-inflammatory cytokines in lipopolysaccharide-stimulated RAW264.7 mouse macrophages and HT-29 human colon epithelial cells. KDA significantly inhibited the production of nitric oxide (NO) and downregulated the pro-inflammatory cytokines, such as interleukin (IL)-1β, IL-6, and tumor necrosis factor-α in lipopolysaccharide (LPS)-induced RAW264.7 cells. In another in vitro experiment involving LPS-stimulated HT-29 cells, KDA suppressed the levels of IL-8, which is the chemokine elevated in IBD. In addition, KDA exhibited anti-oxidative properties, such as 2,2-diphenyl-1-picryl-hydrazyl-hydrate (DPPH) and 2,2'-azino-bis(3-ethylbenz-thiazoline-6-sulfonic acid) (ABTS) radical scavenging activity. Our findings revealed that A. sativa combined with soy paste exhibits a synergistic anti-inflammatory and anti-oxidant effect following fermentation. These results suggest that KDA may be used as a potential anti-inflammatory therapy against IBD.

금은화(金銀花)와 황금(黃芩)이 배오(配伍)된 처방제(處方劑)의 항염증(抗炎症) 효과(效果) 연구(硏究) (Study on the Anti-inflammatory Effects of the Remedy Prescripted with Lonicerae Flos and Scutellariae Radix in U937 cells)

  • 이용숙;장선일
    • 대한한의학방제학회지
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    • 제18권1호
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    • pp.121-132
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    • 2010
  • Inflammatory reaction is characterized by over-production of inflammatory mediators due to an up-regulation of inflammatory pathways, which produce pro-inflammatory mediators, such as interleukin-1beta (IL-$1{\beta}$), IL-6, tumour necrosis factor alpha (TNF-$\alpha$), prostaglantin $E_2$ ($PGE_2$), and nitric oxide (NO) in U937 cells. We investigate the anti-inflammatory effects of water extracts from Lonicerae Flos and Scutellariae Radix in lipopolysaccharide (LPS)-stimulated U937 cells. Each extract suppressed the production of inflammatory mediators (NO, IL-$1{\beta}$, TNF-$\alpha$, and $PGE_2$) and the expression of inducible NO synthase and cyclooxygenase-2 in LPS- stimulated U937 cells in a dose-dependent manner. These suppressive effects were synergistically increased by their combination. Their combination extract also inhibited NF-${\kappa}B$-DNA complex of NF-${\kappa}B$ binding activity and translocation of NF-${\kappa}B$ from cytosol to nucleus. These results suggest that the combination of water-extractable components of Lonicerae Flos and Scutellariae Radix may be useful for therapeutic drugs against inflammatory immune diseases, probably by suppressing the production of inflammatory mediators.

Korean Red Ginseng saponin fraction exerts anti-inflammatory effects by targeting the NF-κB and AP-1 pathways

  • Lee, Jeong-Oog;Yang, Yanyan;Tao, Yu;Yi, Young-Su;Cho, Jae Youl
    • Journal of Ginseng Research
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    • 제46권3호
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    • pp.489-495
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    • 2022
  • Background: Although ginsenosides and saponins in Korea red ginseng (KRG) shows various pharmacological roles, their roles in the inflammatory response are little known. This study investigated the anti-inflammatory role of ginsenosides identified from KRG saponin fraction (RGSF) and the potential mechanism in macrophages. Methods: The ginsenoside composition of RGSF was identified by high-performance liquid chromatography (HPLC) analysis. An anti-inflammatory effect of RGSF and its mechanisms were studied using nitric oxide (NO) and prostaglandin E2 (PGE2) production assays, mRNA expression analyses of inflammatory genes and cytokines, luciferase reporter gene assays of transcription factors, and Western blot analyses of inflammatory signaling pathways using the lipopolysaccharide (LPS)-treated RAW264.7 cells. Results: HPLC analysis identified the types and amounts of various panaxadiol ginsenosides in RGSF. RGSF reduced the generation of inflammatory molecules and mRNA levels of inflammatory enzymes and cytokines in LPS-treated RAW264.7 cells. Additionally, RGSF inhibited the signaling pathways of NF-κB and AP-1 by suppressing both transcriptional factors and signaling molecules in LPS-treated RAW264.7 cells. Conclusion: RGSF contains ginsenosides that have anti-inflammatory action via restraining the NF-κB and AP-1 signaling pathways in macrophages during inflammatory responses.

Anti-inflammatory Effects of Abeliophyllum distichum Flower Extract and Associated MAPKs and NF-κB Pathway in Raw264.7 Cells

  • Lee, Jin-Wook;Kang, Yoon-Joong
    • 한국자원식물학회지
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    • 제31권3호
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    • pp.202-210
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    • 2018
  • Abeliophyllum distichum is a medicinal plant used in regional traditional medicine to relieve pain in inflammatory processes. In this study, anti-inflammatory effects of Abeliophyllum distichum flower (ADF) extract were examined. Furthermore, possible molecular mechanisms of the anti-inflammatory effects were dissected. The anti-inflammatory activity was investigated by inhibition of lipopolysaccharide (LPS) induced pro-inflammatory cytokine production in murine macrophage-like cell line Raw264.7 cells. The measurement of the induced pro-inflammatory cytokine levels were carried out by ELISA. The phosphorylation of ERK1/2, JNK, and MAPK, and the nuclear expression of nuclear factor NF-${\kappa}B$ p65 were investigated by Western blot analysis. The extract of ADF significantly decreased the production of pro-inflammatory cytokines. In addition, the extract suppressed the phosphorylation of ERK1/2, JNK, and p38 MAPK, and the nuclear translocation of NF-${\kappa}B$ p65 in activated cells. Our findings provide evidence for the popular use of Abeliophylli distichum in inflammation around Goesan region and also suggest that the flower extract has potential therapeutic benefits against various inflammatory diseases.

內疎黃連湯의 消炎效果에 관한 實驗的 硏究 (The Anti-Inflammatory Effects of NeiShuHuangLianTang In Experi-mental Animals)

  • 안종현;심성용;김경준
    • 한방안이비인후피부과학회지
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    • 제17권3호
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    • pp.8-17
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    • 2004
  • Objective: Under recognition of the similarity between carbuncle in Oriental medicine and inflammatory disease, NeiShuHuangLianJang(N.H.) has been used as an antiphlogistic agent. The present reports shows the anti-inflammatory effects of N.H. Method: Experimental animals made use of 4-5 weeks age(weight 20-25g) ICR(male)mouse. They were farmed individually in a temperature($22{\pm}0.5{\circ}$) and light(06:00 to 18:00 h) controlled room with free access to water and food. The N.H.(1.0g/kg, 3.0g/kg) extracted from NeiShuHuangLianTang were administered intragastrically prior to LPS I.P injection. we measured WBC count, IL-6 level in plasma and TNF-${\alpha}$ level in plasma. Result : 1. N.H. suppressed inflammatory reaction induced by LPS. 2. N.H. suppressed WBC count in inflammatory reaction induced by LPS. 3. N.H. suppressed 1L-6 level in inflammatory reaction induced by LPS. According to above experiments, N.H. was improved its suppression effect against the inflammatory reaction through WBC count and IL-6 level. So N.H. which is used for the inflammatory disease(carbuncle) in Oriental Medicine is assumed to have a curative effects against this disease by controlling WBC count and IL-6 level in plasma.

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