• 제목/요약/키워드: Interleukin 6

검색결과 1,864건 처리시간 0.03초

Effects of Daegangwhal-Tang Hot Aqueous Extract on Anti-inflammation and Anti-oxidation in RAW 264.7 Macrophage

  • Lee, Jae Sung;Jo, Na Young;Roh, Jeong Du;Lee, Cham Kyul;Lee, Eun Yong
    • Journal of Acupuncture Research
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    • 제35권3호
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    • pp.115-119
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    • 2018
  • Background: The objective of this study was to determine the effects of Daegangwhal-Tang (DGHT) hot aqueous extract on production of inflammatory mediators and antioxidants in RAW 264.7 macrophage. Methods: DGHT was extracted with water, filtered, concentrated and freeze-dried to perform. Cytotoxicity of DGHT extract was performed by MTT assay. Activated macrophages were treated with varying concentrations of DGHT extract (10, 50, 100 and $200{\mu}g/mL$), and nitric oxide (NO) and prostaglandin E2 ($PGE_2$) concentrations were measured to detect anti-oxidative effects. Interleukin-6 (IL-6), interleukin-1 beta ($IL-1{\beta}$) and tumor necrosis factor-alpha($TNF-{\alpha}$) concentrations were also measured to detect inflammatory responses to DGHT Results: Cytotoxicity of DGHT extract at concentrations of 10, 50, 100 and $200{\mu}g/mL$ were not observed. NO production was significantly decreased in the DGHT hot aqueous extract $200{\mu}g/mL$ concentration group. $PGE_2$, IL-6, $IL-1{\beta}$ and $TNF-{\alpha}$ production was significantly decreased in the DGHT hot aqueous extract 100 and $200{\mu}g/mL$ concentration groups. DGHT hot aqueous extract appeared to have DPPH free radical scavenging capability at all of concentrations, but did not exceed 50%. Conclusion: These results suggest that DGHT hot aqueous extract has concentration-dependent anti-inflammatory and anti-oxidative effect.

Role of IL-15 in Sepsis-Induced Skeletal Muscle Atrophy and Proteolysis

  • Kim, Ho Cheol;Cho, Hee-Young;Hah, Young-Sool
    • Tuberculosis and Respiratory Diseases
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    • 제73권6호
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    • pp.312-319
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    • 2012
  • Background: Muscle wasting in sepsis is associated with increased proteolysis. Interleukin-15 (IL-15) has been characterized as an anabolic factor for skeletal muscles. Our study aims to investigate the role of IL-15 in sepsis-induced muscle atrophy and proteolysis. Methods: Mice were rendered septic either by cecal ligation and puncture or by intraperitoneal injection of lipopolysaccharide (LPS, 10 mg/kg i.p.). Expression of IL-15 mRNA and protein was determined by reverse transcriptase polymerase chain reaction and Western blot analysis in the control and septic limb muscles. C2C12 skeletal muscle cells were stimulated in vitro with either LPS or dexamethasone in the presence and absence of IL-15 and sampled at different time intervals (24, 48, or 72 hours). IL-15 ($10{\mu}g/kg$) was intraperitoneally administered 6 hours before sepsis induction and limb muscles were sampled after 24 hours of sepsis. Cathepsin L activity was determined to measure muscle proteolysis. Atrogin-1 and muscle-specific ring finger protein 1 (MuRF1) expressions in limb muscle protein lysates was analyzed. Results: IL-15 mRNA expression was significantly lower in the limb muscles of septic mice compared to that of controls. Cathepsin L activity in C2C12 cells was significantly lower in presence of IL-15, when compared to that observed with individual treatments of LPS or dexamethasone or tumor necrosis factor ${\alpha}$. Further, the limb muscles of mice pre-treated with IL-15 prior to sepsis induction showed a lower expression of atrogin-1 and MuRF1 than those not pre-treated. Conclusion: IL-15 may play a role in protection against sepsis-induced muscle wasting; thereby, serving as a potential therapeutic target for sepsis-induced skeletal muscle wasting and proteolysis.

Persicaria senticosa Ameliorates Imiquimod-induced Psoriasis-like Skin Lesions in Mice via Suppression of IL-6/STAT3 Expression and Proliferation of Keratinocytes

  • Jung, Sangmi;Park, Jeong-Ran;Ra, Moonjin;Kim, Young Han;Yu, Ji Hoon;Lee, Yongjun
    • Natural Product Sciences
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    • 제26권2호
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    • pp.136-143
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    • 2020
  • Psoriasis is one of the most common inflammatory skin disorders, with a global prevalence of 2% - 3%. It is an autoimmune skin disorder characterized by excessive generation of plaques on the skin with typical long-lasting red, itchy, and scaly lesions. In this study, we aimed to elucidate the anti-psoriatic effect of the methanolic extract of Persicaria senticosa (PS), a bioactive edible plant extract used in traditional medicine, using a mouse model of imiquimod (IMQ)-induced psoriasis. The daily topical application of IMQ could induce human psoriasis-like lesion. The extract ameliorated IMQ-induced psoriasis. Furthermore, hematoxylin and eosin staining and the Psoriasis Area and Severity Index (PASI) scores indicated that topical application of PS led to an improvement in erythema, scaling, and thickness scores of the mouse dorsal skin and a considerable decrease in the epidermal thickness of the ear and dorsal skin in the IMQ-induced psoriatic mouse model. We also studied the effect of PS on the proliferation of keratinocytes using HaCaT cells. The extract inhibited cell proliferation and IL-6 and pSTAT3 expression induced by M5 cocktail (comprising interleukin [IL]-1α, IL-17A, IL-22, oncostatin M, and tumor necrosis factor-α) in HaCaT cells. Thus, PS might serve as a potential therapeutic agent for the treatment of psoriasis.

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) (Effect of negative therapy at back meridian points on blood gas components and immune functions in male college students)

  • 오재근;김성수
    • 대한한의학회지
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    • 제20권1호
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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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생쥐 흉선세포의 증식과 생존력에 미치는 인삼 사포닌의 영향 (Effect of Ginseng Saponin on the Proliferation and Viability of Murine Thymocyte, in vitro)

  • 최선경;정노팔
    • Journal of Ginseng Research
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    • 제10권2호
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    • pp.133-140
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    • 1986
  • 면역 작용에 중요한 역할을 하는 림프구의 일종인 T세포가 성장 및 증식하는 기관인 흉선의 흉선세포증식과 생존력에 미치는 인삼 saponin의 영향과, 흉선 세포의 증식에 관여하는 Interleukin2(IL2)에 미치는 인삼saponin의 영향과,IL2의 생성에 영향을 미치는 Adenosin Deaminase(ADA)에 대한 인삼 saponin의 영향 등을 알아보기 위하여 생쥐의 흉선세포를 사용하여 다음과 같은 결과를 얻었다. 여러 농도의 인삼 saponin에서 배양한 전체 흉선세포수와 살아있는 흉선세포수의 변화는 $10^{-5}$%농도에서 대조군보다 증가하였으나 $10^{-1}$%농도군에서는 감소되었다. 여러 농도의 IL2에 인삼 saponin$10^{-5}$%농도를 첨가하여 배양한 전체 흉선세포수는 1.5%,3%및 6%농도군에서 9시간 또는 12시간배양시 증가하였으며,6% 실험군은 24시간과 48시간 배양시에도 유의성있게 증가하였다. 그러나 살아있는 흉선세포수는 대조군과 별차이가 없었다. 마지막으로 흉선세포의 ADA활성도에 미치는 인삼 saponin의 영향은 $10^{-5}$%농도에서 25%의 유의성있는 활성 증가가 일어났다.

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Modulation of Interleukin Production in Anthrax Lethal Toxin-treated Macrophages by Melatonin and Dehydroepiandrosterone

  • Shin, Sung-Ho;Hur, Gyeung-Haeng;Yeon, Kyu-Baek;Kim, Yun-Bae;Park, Kyung-Jin;Park, Young-Min;Lee, Woo-Sung;Cho, Bong-Huey;Kim, Won-Yong;Chung, Sang-In;Choi, Chul-Soon
    • BMB Reports
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    • 제33권6호
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    • pp.463-468
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    • 2000
  • Anthrax lethal toxin, which consists of two separate protein, protective antigen (83 KDa) and lethal factor (85 KDa) is responsible for major symptoms and death from systemic infection of Bacillus anthracis. High concentrations of this toxin are cytolytic to macrophages, whereas sublytic concentrations of lethal toxin induce these cells to produce interleukin $1{\beta}$ ($IL-1{\beta}$). It is proposed that melatonin and dehydroepiandrosterone (DHEA) may play an important role in modifying immune dysfunction. In this study, we investigated whether or not melatonin and DHEA could prevent $IL-1{\beta}$ production that is induced by anthrax lethal toxin in mouse peritoneal macrophages. Treatment of melatonin or DHEA alone, as well as together, prevented the production of $IL-1{\beta}$ caused by anthrax lethal toxin. We found that melatonin at a concentration of $10^{-6}-10^{-7}$ M inhibits $IL-1{\beta}$ production induced by anthrax lethal toxin. As expect, treatment of DHEA at a concentration $10^{-6}-10^{-7}$ M also suppressed production of $IL-1{\beta}$ by lethal toxin stimulated macrophages. The results of these studies suggest that melatonin and DHEA, immunomodulators, may have an important role in reducing the increase of cytokine production in anthrax lethal toxin-treated macrophages.

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Effect of Ulmus davidiana Planch (Ulmaceae) on T-lymphocyte-producing cytokines such as IL-2, IL-6, and $IFN-{\gamma}$ production in collagen-induced arthritis of rats

  • Kang, Han-Ju;Kim, Kyung-Ho;Jo, Hyun-Seog;Hwang, Min-Seob;Kim, Kap-Sung
    • Journal of Acupuncture Research
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    • 제22권2호
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    • pp.33-41
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    • 2005
  • Objective : The effect of Ulmus davidiana Planch(UD), which has long been known to have anti-inflammation and protective effects on damaged tissue, inflammation and bone among other functions, on the development of type II collagen (CII)-induced arthritis (CIA) in rats was studied. Methods : Male rats were immunized with an emulsion of $200\;{\mu}g$ of CII and complete Freund's adjuvant (CFA). The rats were then given intraperitoneal stimulation of Ulmus davidiana Planch herbal acupuncture(UDHA)or saline during the experiment. When compared with rats treated with saline as control, UDHA at doses of more than $20{\mu}g/100\;g$ rat once a day for 7 days inhibited the ability of inguinal lymph node cells to produce T cell cytokines interleukin-2, interleukin-6, $IFN-{\gamma}$ when the cells were obtained from rats 14 days after immunization and cultured in vitro with CII. Results : When rats were injected intraperitoneally, UD -treated group and control group rats did not differ significantly when low doses of UD was given to rats. Conclusion : The recommended dose of UD in the management and treatment of rat CIA will be more than $20{\mu}g/100\;g$, which is two-firth of human therapeutic dose. From the results, it was concluded that the effect of UDHA is dependent of dosage.

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Functional Properties of Squid By-products Fermented by Probiotic Bacteria

  • Xu, Hua;Gou, Jingyu;Choi, Geun-Pyo;Lee, Hyeon-Yong;Ahn, Ju-Hee
    • Food Science and Biotechnology
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    • 제18권3호
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    • pp.761-765
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    • 2009
  • The effects of probiotic bacteria on the functional properties of squid by-products were investigated during fermentation. Bifidobacterium longum, Lactobacillus acidophilus, Lactobacillus brevis, Lactobacillus casei, Lactobacillus paracasei, Lactobacillus rhamnosus, and Pediococcus acidilactici were used to ferment the squid by-products for 96 hr at $37^{\circ}C$. The numbers of all probiotics increased to $10^7-10^8$ CFU/g after 96 hr fermentation. No substantial pH changes were observed. L. rhamnosus and P. acidilactici showed the highest 2,2-diphenyl-1-picrylhydrazyl (DPPH) scavenging activities. Interleukin-6 (IL-6) and tumor necrosis $factor-{\alpha}$ ($TNF-{\alpha}$) secreted from B cells increased after adding the extracts of probiotic-fermented squid by-products. The human NK cells were grown well in the B cell-growing broth cultured with the extracts of squid by-products fermented by L. rhamnosus and P. acidilactici. Trimethylamine (TMA) and dimethylamine (DMA) contents were significantly decreased after probiotic-fermentation. Therefore, L. rhamnosus GG and P. acidilactici can be used for the fermentation of squid by-products and their use would provide benefits in functional food products.

Orobol, A Derivative of Genistein, Inhibits Heat-Killed Propionibacterium acnes-Induced Inflammation in HaCaT Keratinocytes

  • Oh, Yunsil;Hwang, Hwan Ju;Yang, Hee;Kim, Jong Hun;Yoon Park, Jung Han;Kim, Jong-Eun;Lee, Ki Won
    • Journal of Microbiology and Biotechnology
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    • 제30권9호
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    • pp.1379-1386
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    • 2020
  • Acne is a chronic skin disease that typically occurs in the teens and twenties, and its symptoms vary according to age, sex, diet, and lifestyle. The condition is characterized by hyperproliferation of keratinocytes in the epidermis, sebum overproduction, excessive growth of Propionibacterium acnes, and P. acnes-induced skin inflammation. Interleukin (IL)-1α and IL-6 are predominant in the inflammatory lesions of acne vulgaris. These cytokines induce an inflammatory reaction in the skin in the presence of pathogens or stresses. Moreover, IL-1α accelerates the production of keratin 16, which is typically expressed in wounded or aberrant skin, leading to abnormalities in architecture and hyperkeratinization. Orobol (3',4',5,7-tetrahydroxyisoflavone) is a metabolite of genistein that inhibited the P. acnes-induced increases in IL-6 and IL-1α levels in human keratinocytes (HaCaTs) more effectively compared with salicylic acid. In addition, orobol decreased the IL-1α and IL-6 mRNA levels and inhibited the phosphorylation of inhibitor of kappa-B kinase, nuclear factor of kappa light polypeptide gene enhancer in B-cells inhibitor, alpha, and mitogen-activated protein kinase induced by P. acnes. Finally, the expression of Ki67 was decreased by orobol. Thus, orobol ameliorated the inflammation and hyperkeratinization induced by heat-killed P. acnes and thus has potential for use in functional foods and cosmetics.

升麻葛根湯加味方이 消炎작용에 미치는 영향 (Study on the Anti-inflammatory Effects of Seungmagalgeuntanggamibang(SMG))

  • 송성필;김진만;임규상;김남권;권일호
    • 한방안이비인후피부과학회지
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    • 제17권2호
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    • pp.12-30
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    • 2004
  • This study was carried out to investigate the effects of SMG on the in vitro and in vivo inflammatory reactions. In experiment I, in vitro tests, ethanol extract of SMG showed potent radical scavenging activity tested by DPPH(I,1-diphenyl-2-picryl-hyrazyl) method and inhibited the lipopolysaccharide-induced gene expressions of interleukin-1${\beta}$, interleukin-6 and tumor necrosis factor-${\alpha}$ (above 50$\%$ at a concentration of 50㎍/㎖) by the macrophage RAW 246.7 cells. Among the herbal ingredients of SMG, ethanol extracts of Scutellaria baicalensis, Paeonia lactiflora, Glycyrrhiza glabra showed potent radical scavenging activity. And Glycyrrhiza glabra and Scutellaria baicalensis showed potent inhibitory activity of nitric oxide production. Especially, ethanol extract of Scutellaria baicalensis inhibited the gene expression of IL-1${\beta}$, IL-6 and TNF-${\alpha}$. In cyclooxygenase-2 assay, Scutellaria baicalensis and Glycyrrhiza glabra showed the potent inhibition of prostaglandin E2 generation. In experiment 2, in vivo tests, SMG showed inhibitory effects on vascular permeability (28.7$\%$) and leukocyte migration (11.5$\%$). These results mean that SMG has a anti-inflammatory effects by it's inhibitory effects of leukocyte migration and vascular permeability as well as it's inhibitory effects of lipopolysaccharide-induced gene expression of IL-1${\beta}$, IL-6 and TNF-${\alpha}$, and radical scavenging activity. Therefore, I expect that SMG may be used as a effective drug for treatment on inflammation.

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