• Title/Summary/Keyword: IFN-$\gamma$

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Immunostimulant and Anti-Tumor Activity of Crude Extracts of Galium aparine L. (팔선초 물 추출물의 면역자극 및 항종양 활성)

  • Yoon, Taek-Joon;Lee, Chang-Kwon;Park, Tae-Kyu;Lee, Kwang-Ho
    • Korean Journal of Pharmacognosy
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    • v.36 no.4 s.143
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    • pp.332-337
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    • 2005
  • We here demonstrate the evidence of increased anti-tumor and immunostimulating activities of crude extracts (GAL) from Galium. aparine L. In experimental lung metastasis of colon26-M3.1 carcinoma or B16-BL6 melanoma cells, prophylactically intravenous (i.v) administration of GAL significantly inhibited lung metastasis in a dose-dependant manner. In an in vitro cytotoxicity analysis, GAL at the concentration up to $500\;{\mu}g/ml$ did not affect the growth of B16-BL6 melanoma cells. In contrast, GAL showed the enhancement of splenocyte proliferating activity in a dose-dependent manner. Peritoneal macrophages stimulated with GAL produced various cytokines such as $1L-1{\beta},\;TNF-{\alpha},\;IFN-{\gamma}$ and IL-12. These data suggest that GAL has an antitumor activity to inhibit tumor metastasis, and its antitumor effects is associated with activation of nonspecific immnune related cells.

Immunosuppressive Activity of Wogonin from Scutellaria Radix on DNFB-induced Delayed Type Hypersensitivity in Mice (마우스에서 황금 유래 Wogonin의 Th1과 Th2 사이토가인 조절 효과)

  • Kim Young Jun;Lee Jeong Chi;Kim Hong Yong;Xie Guanghua;Yun Yong Gab;Jang Seon Il
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.19 no.4
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    • pp.1027-1031
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    • 2005
  • In the present study, wogonin, a major flavone isolated from Scutellaria Radix were examined for its imunosuppressive activity on the 2,4-dinitro-fluorobenzene (DNFB)-induced delayed type hypersensitivity (DTH) in C3H/HeN mice. This compound inhibited selectively $TNF-\alpha$ and IL-4, but not IL-6, IL-10 and $IFN-\gamma$ on DNFB-induced Th1 and Th2 cytokines in a concentration-dependent manner. Interestingly, this compound increased the expression of heme oxygenase-1 (HO-1) in a concentration-dependent manner The above results reveal that wogonin possesses anti-inflammatory, humoral and cellular immunomodulatory, and stress reducing activities on the DNFB-induced DTH in mice and these properties may contribute to the anti-atopic dermatitis activity of Scutellaria Radix.

Immunity Effect of the Sogyughwalhyel-tanggami in Collagen-induced Arthritis Mice (Type II Collagen으로 유발된 관절염에 대한 소경활혈탕가미의 면역 억제 효과)

  • Lee Joong-Whee;Oh Min-Suck
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.19 no.5
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    • pp.1323-1329
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    • 2005
  • This study was carried out to know the immunity responses of Sogyughwalhyel-tanggami(SGHHT) to on Rheumatoid Arthritis in Collagen-induced Arthritis(CIA) Mice. Various experimental were peformed to analyse the immunity effects of SGHHT. The cytotoxicity against mLFCs was not measured. The production of pro-inflammatory cytokines $IL-1{\beta}$, IL-6, $TNF-\alpha$ were reduced in hFLSs. The production of pro-inflammatory cytokines $IFN-\gamma$, IgG3, IgG2b, IgM were reduced. Comparison of the results for this study showed that SGHHT had immunomodulatory effects of suppressing or enhancing. So we expect that SGHHT should be used as a effective drugs for not only rheumatoid arthritis but also another auto-immune disease. Therefore we have to survey continuously in looking for the effective substance and mechanism in the future.

Aloe-Emodin Protects RIN-5F (Pancreatic β-cell) Cell from Glucotoxicity via Regulation of Pro-Inflammatory Cytokine and Downregulation of Bax and Caspase 3

  • Alshatwi, Ali A;Subash-Babu, P.
    • Biomolecules & Therapeutics
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    • v.24 no.1
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    • pp.49-56
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    • 2016
  • To determine the protective effect of aloe-emodin (AE) from high glucose induced toxicity in RIN-5F (pancreatic ${\beta}$-cell) cell and restoration of its function was analyzed. RIN-5F cells have been cultured in high glucose (25 mM glucose) condition, with and without AE treatment. RIN-5F cells cultured in high glucose decreased cell viability and increased ROS levels after 48 hr compared with standard medium (5.5 mM glucose). Glucotoxicity was confirmed by significantly increased ROS production, increased pro-inflammatory (IFN-${\gamma}$, IL-$1{\beta}$,) & decreased anti-inflammatory (IL-6&IL-10) cytokine levels, increased DNA fragmentation. In addition, we found increased Bax, caspase 3, Fadd, and Fas and significantly reduced Bcl-2 expression after 48 hr. RIN-5F treated with both high glucose and AE ($20{\mu}M$) decreased ROS generation and prevent RIN-5F cell from glucotoxicity. In addition, AE treated cells cultured in high glucose were transferred to standard medium, normal responsiveness to glucose was restored within 8hr and normal basal insulin release within 24 hr was achieved when compared to high glucose.

Immunomodulatory Effects of Fermented Milk based on Synbiotic Interaction between Cudrania tricuspidata Leaf Extract and Lactobacillus gasseri 505 (Lactobacillus gasseri 505를 사용한 꾸지뽕잎 추출물 첨가 신바이오틱스 발효유의 면역활성 조절 연구)

  • Lee, Ji Young;Kim, Su Gyeong;Shin, Yong Kook;Oh, Nam Su
    • Journal of Dairy Science and Biotechnology
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    • v.36 no.1
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    • pp.39-48
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    • 2018
  • This study examined the immunomodulatory effects of milk fermented with based on the synbiotic interaction between Cudrania tricuspidata leaf extract (CT) and Lactobacillus gasseri 505. Raw 264.7 macrophages were treated with milk (Control), milk supplemented with 0.2% CT (CT-milk), or CT-milk fermented with L. gasseri 505 (FCT). FCT-treated cells showed higher NO production than the other groups. ELISA revealed that FCT produced the highest enhancement of the production of pro-inflammatory cytokines such as $TNF-{\alpha}$, $IFN-{\gamma}$, $IL-1{\beta}$, IL-6, IL-2, IL-12, and IL-10. Furthermore, FCT also increased the gene expression of pro-inflammatory mediators such as iNOS and COX-2 in a concentration-dependent manner. Collectively, these results indicate that the synbiotic interaction between CT and L. gasseri 505 might enhance their immunomodulatory effects of fermented milk.

CP-690550 Treatment Ameliorates Established Disease and Provides Long-Term Therapeutic Effects in an SKG Arthritis Model

  • Oh, Keunhee;Seo, Myung Won;Kim, In Gyu;Hwang, Young-Il;Lee, Hee-Yoon;Lee, Dong-Sup
    • IMMUNE NETWORK
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    • v.13 no.6
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    • pp.257-263
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    • 2013
  • Although pathogenesis of human rheumatoid arthritis (RA) remains unclear, arthritogenic T cells and downstream signaling mediators have been shown to play critical roles. An increasing numbers of therapeutic options have been added for the effective control of RA. Nevertheless, there is still a category of patients that fails treatment and suffers from progressive disease. The recently developed immunosuppressant CP-690550, a small molecule JAK kinase inhibitor, has been implicated as an important candidate treatment modality for autoimmune arthritis. In this study, we evaluated the therapeutic effect of CP-690550 on established arthritis using an SKG arthritis model, a pathophysiologically relevant animal model for human RA. CP-690550 treatment revealed remarkable long-term suppressive effects on SKG arthritis when administered to the well-advanced disease (clinical score 3.5~4.0). The treatment effect lasted at least 3 more weeks after cessation of drug infusion, and suppression of disease was correlated with the reduced pro-inflammatory cytokines, including IL-17, IFN-${\gamma}$, and IL-6 and increased level of immunoregulatory IL-10.

Effects of Andrographitis Herba in A549 Lung Cancer Cells (천심련(穿心蓮)이 A549 폐암세포에 미치는 영향)

  • Bum, Hee-Byun;Han, Hyo-Sang;Lee, Young-Jong
    • The Korea Journal of Herbology
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    • v.25 no.2
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    • pp.107-116
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    • 2010
  • Objectives : This study purposed to research the anti-cancer effects of Andrographitis Herba. Methods : By measuring the cell proliferation, apoptosis, morphology and cytokine level from the extracts, the influence on a A549 cell was compared. Results : The Andrographitis Herba decoction extract according to the concentration inhibited the proliferation and increased the apoptosis of the A549 cell. Among the various fraction extracts of the Andrographitis Herba decoction, EtOEt showed the greatest increase of the apoptosis of the A549 cell. The Andrographitis Herba decoction extract according to the concentration decreased the secretion of the TGF-$\beta$ in the A549 cell, and increased the secretion of the TNF-$\alpha$ and the IFN-$\gamma$ presenting cell population. Conclusion : It is considered that the total extract and various fraction extracts of Andrographitis Herba decoction inhibit the proliferation of A549 cells.

A Ginseng Saponin Induces Production of Nitric Oxide in Macrophages (인삼사포닌에 의한 대식세포 일산화질소 생성 유도)

  • Kim Ji Yeon;Lee Hwa Jin;Kim Ji Sun;Ahn Hanna;Ryu Jae-Ha
    • YAKHAK HOEJI
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    • v.49 no.1
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    • pp.80-85
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    • 2005
  • Ginseng root is an important remedy in oriental countries, which has been used for thousands of years. Saponins of ginseng root has been known to be the major component which mediate diverse pharmacological actions of the ginseng. Heat processing of ginseng root potentiates its biological activity such as anti-tumor and anti-oxidative activities. The butanol fraction of heat-processed ginseng (HGB) induced the production of nitric oxide in macrophages in a dose-dependent manner with IFN-${\gamma}$(30 U/ml) priming. The active component was identified as ginsenoside-$Rg_5$ from the activity-guided purification. Ginsenoside $Rg_5$ is one of major components of heat-processed ginseng and red ginseng that is responsible for the potentiated biological activities of processed ginseng. The induction of NO production by heat-processed ginseng might contribute to the potentiated biological activity of heat-processed ginseng.

Pycnogenol Supplementation Retards Immune Dysfunction in Murine AIDS (MAIDS) After LP-BM5 Leukemia Virus Infection by Modulating Cytokine Secretion

  • Lee, Jeong-Min;Park, Kun-Young;Hwang, Kwon-Tack;Watson, Ronald R.
    • Preventive Nutrition and Food Science
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    • v.10 no.2
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    • pp.161-166
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    • 2005
  • We investigated the effect of pycnogenol (PYC) supplementation on retarding the immune dysfunction of CS7BL/6 mice after murine AIDS (MAIDS) development. Dysfunction of T and B cell mitogenesis from primary cultured splenocytes has been observed with retrovirus infection and PYC supplementation partially recovered the dysfunction of T and B cells. There was an abnormal shift of cytokine pattern with retrovirns infection, which was designated by the decreased secretion of Th1 cytokines and increased secretion of Th2 cytokines. PYC supplementation increased IL-2 and $IFN-\gamma$ secretion and decreased IL-4, IL-6, and $TNF-\alpha$ secretion, but it was not sufficient enough to maintain the normal level of these cytokines. Hepatic vitamin E level was significantly decreased by retrovirns infection, in accordance with increased hepatic lipid peroxidation level, whereas PYC supplementation normalized the hepatic level of vitamin E and lipid peroxidation. This study suggests that PYC supplementation may partially help retard the incidence of symptoms during MAIDS.

Effect of Geopungjeseupbang on Contact Dermatitis induced by DNCB (거풍조습해독방(祛風燥濕解毒方)이 접촉성피부염 유발 NC/Nga 생쥐의 면역 관련 인자에 미치는 영향)

  • Bae, Eun-Young;Kim, Dong-Hee
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.21 no.6
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    • pp.1491-1498
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    • 2007
  • NC/Nga mice with contact dermatitis induced using DNCB were applied with GJHB(祛風燥濕解毒方), and its influence on the expressions of IgE, immune related cytokines, and immunoglobulins were tested. The results were obtained as follows ; GJHB significantly redued the production of IgE compared to the control. GJHB significantly reduced the amount of IL-4 within the suspension of spleen cells, but significantly induced the production of $IFN-{\gamma}$, compared to the control. GJHB significantly reduced the production of IL-6 and $TNF-{\alpha}$ in the serum compared to the control. GJHB significantly suppressed the concentration of IgM, IgG2a, IgG2b in the serum. However, no significant decrease of IgG1 was observed. From the results above, GJHB suppressed the intermediate factors during the hypersensitive immune response as well as suppressing the generation of inflammation related cytokines. Therefore, anti-allergic effect of GJHB on the contact dermatitis through immune modulation was confirmed.