• 제목/요약/키워드: Immunological activities

검색결과 133건 처리시간 0.023초

Immunomodulatory Effects of Dioscoreae Rhizome Against Inflammation through Suppressed Production of Cytokines Via Inhibition of the NF-${\kappa}B$ Pathway

  • Kim, Seulah;Shin, Seulmee;Hyun, Bobae;Kong, Hyunseok;Han, Shinha;Lee, Aeri;Lee, Seungjeong;Kim, Kyungjae
    • IMMUNE NETWORK
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    • 제12권5호
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    • pp.181-188
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    • 2012
  • Dioscoreae Rhizome (DR) has been used in traditional medicine to treat numerous diseases and is reported to have anti-diabetes and anti-tumor activities. To identify a bioactive traditional medicine with anti-inflammatory activity of a water extract of DR (EDR), we determined the mRNA and protein levels of proinflammatory cytokines in macrophages through RT-PCR and western blot analysis and performed a FACS analysis for measuring surface molecules. EDR dose-dependently decreased the production of NO and pro-inflammatory cytokines such as IL-$1{\beta}$, IL-6, TNF-${\alpha}$, and $PGE_2$, as well as mRNA levels of iNOS, COX-2, and pro-inflammatory cytokines, as determined by western blot and RT-PCR analysis, respectively. The expression of co-stimulatory molecules such as B7-1 and B7-2 was also reduced by EDR. Furthermore, activation of the nuclear transcription factor, NF-${\kappa}B$, but not that of IL-4 and IL-10, in macrophages was inhibited by EDR. These results show that EDR decreased pro-inflammatory cytokines via inhibition of NF-${\kappa}B$-dependent inflammatory protein level, suggesting that EDR could be a useful immunomodulatory agent for treating immunological diseases.

ANTIOXIDATIVE ACTIVITIES OF SOME DIETARY FIBERS DETERMINED BY AN NIR EMISSION SPECTROSCOPY

  • Suzuki, Nobutaka;Nagai, Takeshi;Tokunou, Kazunari;Mizumoto, Iwao;Matsuya, Hiroko;Yoda, Binkoh;Itami, Toshiaki;Takahashi, Yukinori;Kozawa, Akiya
    • 한국근적외분광분석학회:학술대회논문집
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    • 한국근적외분광분석학회 2001년도 NIR-2001
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    • pp.3102-3102
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    • 2001
  • Constituents of several .representative seaweeds, such as wakame Undaria pinnatifida; hijikia Hizikia fusifome; and kombu Laminaria japonica, were found to have fairly large reaction rates determined by quenching experiments of emission spectra in the near-infrared region (1max: 1270 nm) from singlet oxygen (102). Emission spectra of singlet oxygen generated from an aqueous solution of Rose Bengal under irradiation with a green laser (330 nm) were measured by a near-infrared (NIR) emission spectrometer constructed in our laboratory. The quenching experiments were as follows: Intensities of emission spectra were measured in the absence (I0) and in the presence of the seaweed constituents (I): Ratios of I0/I were plotted against every concentration of the quenchers (Stern-Volmer plots) which gives a straight line. The slope of each line gives a kqt value which gives a quenching constant kq value (an antioxidative constant against singlet oxygen) when the t value (half-life time of singlet oxygen in the solvent used) was given. The determined reaction rates are between 103-105 (g/l)-ls-1; the larger ones are as large as that of ascorbic acid, 8.4 ${\times}$ 104 (g/1)-ls-1. Most of these seaweed constituents also showed antioxidative activity against auto-oxidation and superoxide as well as their immunological enhancing activity. These results suggest a possibility that dietary fibers which are supposed to prevent the large-intestine cancer by their physical properties may prevent the cancer, at least in parts, by their chemical, antioxidative activity.

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대표적인 태음인 처방의 면역 활성화 비교 연구 (Stimulation of the Immune Response by Herbal Formulas for Taeeumin)

  • 정다영;하혜경;이호영;이진아;이남헌;이준경;황대선;신현규
    • 사상체질의학회지
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    • 제22권3호
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    • pp.141-151
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    • 2010
  • 1. Objectives: Three herbal formulas (Yuldahanso-tang, Chungsimyonja-tang, and Taeeumjowi-tang) for Taeeumin were applied to investigate the immunological activities on antigen (Ag)-specific or Ag-non-specific immune responses in murine macrophage cell line (RAW 264.7) and ovalbumin (OVA)-immunized mice. 2. Methods: This study was carried out in nitric oxide (NO) synthesis in RAW 264.7 cells and cellular proliferation in mouse splenocytes according to three herbal formulas. C57BL/6 mice were immunized intraperitonially with OVA/aluminium ($100\;{\mu}g/200\;{\mu}g$/mouse) on day 1, 8, and 15. Three herbal formulas were administrated to mice orally for 3 weeks from day 1. On day 22, OVA-, lipopolysaccharide (LPS)-, and concanavalin A (Con A)-stimulated splenocyte proliferation and antibodies (OVA-specific antibodies of the IgG, IgG1, and total IgM classes) in plasma were measured. 3. Results: Yuldahanso-tang and Chungsimyonja-tang increased NO synthesis in RAW 264.7 cells. Three herbal formulas significantly enhanced cellular proliferation by LPS and Con A in splenocytes from OVA-immunized mice (p<.001). Three herbal formulas for Taeeumin also significantly enhanced plasma OVA-specific IgG, IgG1, and total IgM levels compared with the OVA/Alum group. 4. Conclusion: These results suggested that three herbal formulas for Taeeumin could be used as stimulator of immune response.

한약재내의 미량원소의 의의와 치료효과에 대한 고찰 (Therapeutical Effect with Trace Elements in Herbal Medicine)

  • 박해모;이선동
    • 대한예방한의학회지
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    • 제4권2호
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    • pp.25-56
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    • 2000
  • Trace element are involved in enzymatic activities, immunological reactions. physiological mechanisms. Deficiency in some trace elements, such as iron and iodine. is still an important health problem, The role of trace elements deficiency is suspected in various clinical situations and is now confirmed by well designed supplementation studies. However, the importance of trace elements as chinese herbal constituents is not sufficiently appreciated by the oriental medical profession, although in recent years a significant increase of new finding on their essential character in chinese herbal medicine occurred. It is well known that herbal medicine contains a variety of trace elements which would show therapeutic effects with active components in herbal medicine . In china, recent work showed some positive correlation between trace element and traditional chinese medicine (TCM) in terms of therapeutic effects even if their role in therapeutic effects is still obscure. In korea, not much attention has been on the therapeutic importance of trace element contained in herbal medicine Here, the therapeutic effects of trace element in TCM were reviewed and summarized. 1. Iron, copper, zinc and manganese are mainly contained in TCM. In addtion, chromium, magnesium, molybdenum, nickel, alminium, cobalt, arsenic and selenium has been studied for their therapeutic effects 2. Zinc, is decreased in patients who have deficiency of kindney(腎虛) and chronic disease. Fe is decreased in patients who have deficiency of blood(血虛). However copper is increased in patients who have chronic disease and hepatic disease.3 Iron concentration is high in herbs used for tonifying and nourishing yin or blood(補陰補血藥) Zinc concentration is high also in herb used for tonifying kidiney and vital essence(補腎補精藥). In addition. copper concentration Is high in herb used for replenishing qi(補氣藥) 4 In herbal drugs, the therapeutic substances in TCM are not only organic but also inorganic. It seems that trace elements would be one of components in herb for its therapeutic effects. This indicates that therapeutic effects of TCM should be extended not only to herb itself, bur also to trace elements contained in herb.

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흰쥐 조직에 존재하는 Inositol(1,4,5) triphosphate 3-Kinase의 면역학적 특성 (Immunological Gharacterization of Inositol(1,4,5) triphosphate 3-Kinase in Rat Tissues)

  • 김재웅;이서구
    • 한국식품영양학회지
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    • 제6권1호
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    • pp.37-46
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    • 1993
  • Brain, heart, liver, lung, kidney and thymus etc. 12 organs were removed and homogenized from Dawley-Sprague rats after suffocation. After fractionation of the tissue cytosols, enzymatic activities of the key enzymes in metabolic inositol phosphates cycle, PLC, IPSK and Ins(1,4,5) P35-phosphatase, were measured respectively. Hybridoma monoclones producing anti-lP3K murine monoclonal antibodies were obtained by the fusion of SP2/Ag 0-14 and spleen cells of mouse immunized with purified 53KDa IPSK, screening and cloning procedures. 18 cloned hybridoma cells were obtained, background due to nonspecific binding was very low with 10 clones. These Abs were purified from ascitic fluids by using affi-gel 15, and determined subtype of Abs. When immunoreactivities for rat tissues IP3K were exercised by adding the mixed Abs of 19Gl and 19G2b, they showed an overall similarity with noncompetitive inhibition. Brain tissue has high sensitivity for anti-lP3K Ab, whereas heart tissue has very low activity. In kinetic parameters Km value was 1.58 mM and Vmx value was 5.41umol/min/ml, respectively Only one form of 40 KDa IPSK was detected in heart tissues, however rat brain contains at least three immunologically distinct IP3K (53, 51 and 40 KDa) in western blot analysis. Of them 53 KDa protein was major enzyme in enzymatic activity. Northern blot analysis with 32P-labeled CDNA probe which encodes 1.8 Kb IPSK gene was performed. These results suggest that IPSK are regulated at transcriptional level during rat tissue development.

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넙치, Paralichthys olivaceus의 수온 자극 스트레스에 대한 사료첨가제 투여 효과 (The effects of supplementary diets on the water temperture stress in olive flounder, Paralichthys olivaceus)

  • 권문경;박상언;방종득;조병열;이상민;박수일
    • 한국어병학회지
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    • 제16권3호
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    • pp.183-191
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    • 2003
  • 본 연구는 넙치의 수온 스트레스에 대한 사료첨가제(미역 5%, 미역 10%, 어보산 0.5%, 고추냉이 잎 2%, 고추냉이 줄기 2%)의 영향을 혈액학적, 면역학적 측면과 Edwardsiella tarda를 사용하여 질병에 대한 저항성으로서 평가하였다. 혈장의 글루코즈와 콜티졸 농도는 1차 수온 변동 후 대조구에 비하여 미역 5%와 고추냉이잎 2% 첨가구에서 유의적으로 낮게 나타났다(P<0.05). 1차 수온 변동 후 혈장 라이소자임 활성과 E. tarda의 공격 시험 후 생존율은 미역 5% 첨가구에서 대조구에 비하여 유의적으로 높게 나타났다(P<0.05). 본 실험 결과 미역 5% 첨가 사료 투여는 넙치의 스트레스 상태에서 질병 감염에 대한 저항성을 높일 수 있을 것으로 사료된다.

스트레스와 면역기능 (Stress and Immune Function)

  • 고경봉
    • 정신신체의학
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    • 제4권1호
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    • pp.146-154
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    • 1996
  • 스트레스와 면역기능 간의 관계는 중추신경계, 신경내분비계 및 면역계 간의 의사소통 즉 상호작용에 의해 이루어지고 있다. 중추신경계와 면역계가 상호작용하는 주요 경로는 임파조직의 신경계 wiring system과 신경내분비계다. 면역계는 neuropeptide를 생성하고 이것은 면역반응을 조절한다. 정신사회적 인자와 면역기능 간의 중개자로는 뇌하수체에서 방출되는 peptide, hormone 및 자율신경계 물질이 있다. 시상하부는 내분비계, 신경계 및 면역계를 통합하는 역활을 한다. 특히 시상하부의 paraventricular nucleus가 이 일에 중추적인 역할을 담당한다. 한편 내분비계는 면역계에 의해서 휘이드백을 받는다. 뇌하수체가 면역계를 조절하는 주요 경로로는 시상하부-뇌하수체-부신-흉선축, 시상하부-뇌하수체-성선-흉선축, 송과선-시상하부-뇌하수체축 등이 시사되고 있다. 스트레스와 면역계 간에는 양 방향의 경로가 있는 것으로 가정된다. 즉 스트레스가 면역계에 영향을 미칠 뿐만 아니라 면역계가 정신사회적 기능에 영향을 미칠 수 있다. 따라서 스트레스와 면역기능 간의 관계를 규명하기 위해서는 면역계, 내분비계, 자율신경계 및 뇌활동을 동시에 측정, 비교하여 이들을 통합할 필요가 있다.

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한약(韓藥)을 이용(利用)한 항암(抗癌) 실험연구(實驗硏究)의 경향(傾向)에 관(關)한 고찰(考察) (A study of the tendency of anti-cancer experimental study using herbal medicines)

  • 김현아;임성우;이원철
    • 대한한방종양학회지
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    • 제4권1호
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    • pp.211-232
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    • 1998
  • Because there were lots of side effects and tolerances to the existing anticancer therapeutics, the experiment extracting the anticancer effect from medicinal herbs is in progress liviely. Therefore the purpose of this study were to research the tendency and the course of anticancer studies. To research the tendency of anticancer studies, medicinal herbs of fifty three experimental papers were analyzed and to examine the course of studies, anticancer papers in the medical world were used. The obtained results were as follows: Methods of herbal medicinal treatments were elimination the pathogenic factor(祛邪) and supporting healthy energy(扶正) method used. In this study, immediately tumor bearing and immune response were the most important point. The subject of immediately tumor bearing was not in the specific cancer but in the influence on the life span of general cencerous cells. In the experimental study of immune response, the effect on NK cell activity of medicinal herbs most studied. The combined usage of medicinal herbs and anticancer agent mostly intended to know whether it inhibits the tumor cell growth. The serum test and blood cell number test show if medicinal herbs inhibit side effect of anticancer agent. More than 80 percents of used medicinal herbs, there were anticancer activities. However anticancer experimental studies using medicinal herbs two weak points. The one, it was difficult to choose a prescription according to differentiation of symptoms and signs(辨證論) of the Oriental Medicine, because we put to the test not a man but a mouse. The other, as we observed the indirect effect of the whole physiological regulation caused by synergic effects of the complex prescription, we don't understand the detailed mechanism of the herb. Therefore, if the anticancer effect of the herb is proved the experiment, we should research the concrete medical action of medicinal herbs and immunological analysis of herbal medicines to the body.

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Immunostimulatory Effects of Cordyceps militaris on Macrophages through the Enhanced Production of Cytokines via the Activation of NF-${\kappa}B$

  • Shin, Seul-Mee;Kwon, Jeong-Hak;Lee, Sung-Won;Kong, Hyun-Seok;Lee, Seung-Jeong;Lee, Chong-Kil;Cho, Kyung-Hae;Ha, Nam-Joo;Kim, Kyung-Jae
    • IMMUNE NETWORK
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    • 제10권2호
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    • pp.55-63
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    • 2010
  • Background: Cordyceps militaris has been used in traditional medicine to treat numerous diseases and has been reported to possess both antitumor and immunomodulatory activities in vitro and in vivo. However, the pharmacological and biochemical mechanisms of Cordyceps militaris extract (CME) on macrophages have not been clearly elucidated. In the present study, we examined how CME induces the production of proinflammatory cytokines, transcription factor, and the expression of co-stimulatory molecules. Methods: We confirmed the mRNA and protein levels of proinflammatory cytokines through RT-PCR and western blot analysis, followed by a FACS analysis for surface molecules. Results: CME dose dependently increased the production of NO and proinflammatory cytokines such as IL-$1{\beta}$, IL-6, TNF-${\alpha}$, and $PGE_2$, and it induced the protein levels of iNOS, COX-2, and proinflammatory cytokines in a concentrationdependent manner, as determined by western blot and RT-PCR analysis, respectively. The expression of co-stimulatory molecules such as ICAM-1, B7-1, and B7-2 was also enhanced by CME. Furthermore, the activation of the nuclear transcription factor, NF-${\kappa}B$ in macrophages was stimulated by CME. Conclusion: Based on these observations, CME increased proinflammatory cytokines through the activation of NF-${\kappa}B$, further suggesting that CME may prove useful as an immune-enhancing agent in the treatment of immunological disease.

Effect of 1-palmitoyl-2-linoleoyl-3-acetyl-rac-glycerol on Immune Functions in Healthy Adults in a Randomized Controlled Trial

  • Hwang, Hee-Jin;Sohn, Ki-Young;Han, Yong-Hae;Chong, Saeho;Yoon, Sun Young;Kim, Young-Jun;Jeong, Jinseoun;Kim, Sang-Hwan;Kim, Jae Wha
    • IMMUNE NETWORK
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    • 제15권3호
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    • pp.150-160
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    • 2015
  • We previously reported that 1-palmitoyl-2-linoleoyl-3-acetyl-rac-glycerol (PLAG) accelerates hematopoiesis and has an improving effect on animal disease models such as sepsis and asthma. The effects of PLAG supplementation on immune modulation were assessed in healthy men and women. The objective was to evaluate the effects of PLAG supplementation on immune regulatory functions such as activities of immune cells and cytokine production. A randomized double blind placebo-controlled trial was conducted. Seventy-five participants were assigned to one of two groups; all participants had an appropriate number of white blood cells on the testing day. The PLAG group (n=27) received oral PLAG supplements and the control group (n=22) received oral soybean oil supplements. IL-4 and IL-6 production by peripheral blood mononuclear cells (PBMC) were lower (p<0.001 and p<0.001, respectively) with PLAG than with soybean oil. However, the production of IL-2 and IFN-$\gamma$ by PBMC was unaltered with PLAG supplementation. The B cell proliferation decreased significantly in the PLAG group compared to the soybean oil control (p<0.05). The intake of PLAG in healthy adults for 4 weeks was deemed safe. These data suggest that PLAG has an immunomodulatory function that inhibits the excessive immune activity of immunological disorders such as atopic and autoimmune diseases. PLAG could improve the condition of these diseases safely as a health food supplement.