• 제목/요약/키워드: hTNF-${\alpha}$

검색결과 604건 처리시간 0.031초

Endotoxin Induces Late Increase in the Production of Pulmonary Proinflammatory Cytokines in Murine Lupus-Like Pristane-Primed Modelp

  • Chae Byeong-Suk;Park Jeong-Suk;Shin Tae-Yong
    • Archives of Pharmacal Research
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    • 제29권4호
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    • pp.302-309
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    • 2006
  • Lupus-like syndrome is characterized by multiple organ injuries including lungs and kidneys. Endotoxin induces a transiently intent systemic inflammatory response and indirectly transient acute lung injury in normal condition. However, whether endotoxin may trigger the persistent development of lung injury in chronic, inflammatory lupus-like syndrome compared with normal condition remains unclear. We examined the pulmonary vascular permeability and production of proinflammatory cytokines, such as TNF-${\alpha}$, IL-6, IL-10 and IFN-${\gamma}$, which play prominent roles in the pathogenesis of lupus-like tissue injury, 6 hand 72 h after i.p. lipopolysaccharide (LPS; endotoxin) injection in pristane-primed chronic inflammation ICR mice characterized by a lupus-like syndrome. These results demonstrated that levels of serum IL-6, IL-10 and IFN-${\gamma}$ and bronchoalveolar lavage (BAL) IL-6 and IFN-${\gamma}$ were remarkably increased 6 h in LPS-exposed pristane-primed mice compared with pristane-primed controls, while pulmonary vascular permeability and levels of serum and BAL TNF-${\alpha}$ were not. And levels of BAL TNF-${\alpha}$, IL-6 and IL-10 were significantly enhanced 72 h in LPS-exposed pristane-primed mice compared with pristane-primed controls. Also, LPS significantly induced the increased in vitro production of TNF-${\alpha}$, IL-6 and IL-10 by lung cells obtained from LPS-exposed pristane-primed mice compared with LPS-exposed normal mice. Our findings indicate that LPS may trigger persistent progression of lung injury through late overproduction of BAL TNF-${\alpha}$, IL-6, and IL-10 in lupuslike chronic inflammation syndrome compared with normal condition.

Hypericum Perforatum Decreased Hippocampus TNF-${\alpha}$ and Corticosterone Levels with No Effect on Kynurenine/Tryptophan Ratio in Bilateral Ovariectomized Rats

  • El-Bakly, Wesam M.;Hasanin, Amany H.
    • The Korean Journal of Physiology and Pharmacology
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    • 제18권3호
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    • pp.233-239
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    • 2014
  • The present study was designed to investigate the effect Hypericum Perforatum (HP), on behavioral changes, corticosterone, TNF-${\alpha}$ levels and tryptophan metabolism and disposition in bilateral ovariectomized rats compared to $17{\alpha}$-ethinylestradiol. Behavioral analysis by measuring immobility time in forced swimming test and open field test, serum and hippocampal corticosterone and TNF-${\alpha}$ along with hippocampal kynurenine/tryptophan ratio were determined in mature ovariectomized rats treated orally either by HP at three different doses 125, 250, and 500 mg/kg/day or by $17{\alpha}$-ethinylestradiol $30{\mu}g/kg/day$ for 30 days. Ovariectomized rats showed significant increase in immobility time in the forced swimming test. Along with elevation in serum and hippocampal TNF-${\alpha}$ and corticosterone levels associated with significant increase in hippocampal kynurenine/tryptophan ratio. Immobility time in the forced swimming test was decreased in rats treated by different doses of HP in a dose dependent manner and $17{\alpha}$-ethinylestradiol with no concomitant changes in the open field test. Only Rats treated with HP exhibited significant decrease in the elevated serum and hippocampal TNF-${\alpha}$ and corticosterone, which couldn't explain the associated insignificant effect on hippocampaus kynurenine/tryptophan ratio in comparison to ovariectomized untreated rats. It is concluded that increased tryptophan metabolism toward kynurenine secondary to elevated corticosterone and TNF-${\alpha}$ might be one of the pathohphysiological mechanisms that could explain depression like state observed in this rat model. Further, the observed attenuating effect of HP on TNF-${\alpha}$ and corticosterone could contribute in its antidepressant effect in this animal model by other ways than their effects on tryptophan-kynurenine metabolism pathway.

Mometasone Furoate Suppresses PMA-Induced MUC-5AC and MUC-2 Production in Human Airway Epithelial Cells

  • Poachanukoon, Orapan;Koontongkaew, Sittichai;Monthanapisut, Paopanga;Pattanacharoenchai, Napaporn
    • Tuberculosis and Respiratory Diseases
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    • 제80권1호
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    • pp.60-68
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    • 2017
  • Background: Mucus hypersecretion from airway epithelium is a characteristic feature of airway inflammatory diseases. Tumor necrosis factor ${\alpha}$ (TNF-${\alpha}$) regulates mucin synthesis. Glucocorticoids including mometasone fuorate (MF) have been used to attenuate airway inflammation. However, effects of MF on mucin production have not been reported. Methods: Effects of MF and budesonide (BUD) on the phorbol-12-myristate-13-acetate (PMA)-induction of mucin and TNF-${\alpha}$ in human airway epithelial cells (NCI-H292) were investigated in the present study. Confluent NCI-H292 cells were pretreated with PMA (200 nM) for 2 hours. Subsequently, the cells were stimulated with MF (1-500 ng/mL) or BUD (21.5 ng/mL) for 8 hours. Dexamethasone ($1{\mu}g/mL$) was used as the positive control. Real-time polymerase chain reaction was used to determine MUC2 and MUC5AC mRNA levels. The level of total mucin, MUC2, MUC5AC, and TNF-${\alpha}$ in culture supernatants were measured using enzyme-linked immunosorbent assay. Results: MF and BUD significantly suppressed MUC2 and MUC5AC gene expression in PMA-stimulated NCI-H292 cells. The inhibitory effects of the two steroid drugs were also observed in the production of total mucin, MUC2 and MUC5AC proteins, and TNF-${\alpha}$. Conclusion: Our findings demonstrated that MF and BUD attenuated mucin and TNF-${\alpha}$ production in PMA-induced human airway epithelial cells.

유청단백질 Glycomacropeptide에서 분리한 NANA의 안전성 및 염증저하 메카니즘 구명 연구 (Anti-inflammatory Effects and Its Mechanisms of NANA (N-Acylneuraminic Acid) Isolated from Glycomacropeptide)

  • 김민호;김재홍;이윤경;김완식;김희경
    • Journal of Dairy Science and Biotechnology
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    • 제29권2호
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    • pp.17-23
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    • 2011
  • The focus of this study was to clarify the relation between the nitric oxide (NO) production and cytokine expression including tumor necrosis factor-${\alpha}$ (TNF) and interleukin-6 (IL-6), and also investigated the effect of G-NANA (N-acylneuraminic acid isolates from glycomacropeptide) or S-NANA (Synthetic N-acylneuraminic acid) on LPS stimuli from RAW264.7 cell. The NANA is the predominant sialic acid found in mammalian cells and G-NANA is isolation of GMP (GMP is a valuable bioactive peptide with a varying degree of glycosylation including sialic acid). The lipopolysaccharide (LPS) of Gram-negative bacteria induces the expression of cytokines and potent inducers of inflammatory cytokines such as TNF-${\alpha}$ and IL-6. In this experiment, upon stimulation with increasing concentrations of chitosan, the LPS-stimulated TNF-${\alpha}$ and IL-6 secretion was significantly recovered with in the incubation media of RAW264.7 cells. Consistently, RT-PCR with mRNA and immunoblot analysis with anti-cytokine antiserum including TNF-${\alpha}$ and IL-6 showed that the amount of TNF-${\alpha}$ and IL-6 secretion in the incubation media recovered with the concentration of chitosan. The LPS-stimulated NO secretion was significantly recovered with in the 6 and 12 h incubation media of RAW264.7 cells, too. The recovery effect of G-NANA on IL-6 and NO secretion may be induced via the stimulus of TNF-${\alpha}$ in RAW264.7 cell. These results once again suggest that G-NANA may have the anti-inflammatory effect via the stimulus of TNF-${\alpha}$ in the LPS-stimulated inflammation in RAW264.7 cells.

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RBL-2H3 세포에서 차조기씨 물 추출물의 항산화 및 항염증 효과 (Anti-Oxidative and Anti-Inflammatory Effect of Water Extract from Perillae Semen in RBL-2H3 Cells)

  • 김정미;김대중;김태혁;김현숙;최면
    • Journal of Nutrition and Health
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    • 제43권4호
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    • pp.367-373
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    • 2010
  • RBL-2H3 세포에서 차조기씨 물 추출물의 항산화성 및 항염증 효과를 알아보기 위하여 DNP-IgE와 HSA로 세포를 활성화시켰다. 활성화된 비만 세포에서 분비되어 나오는 히스타민을 효소적 방법으로 측정하였으며, 염증성 사이토카인 IL-4과 TNF-$\alpha$의 생성량은 ELISA 방법으로 측정하였다. 차조기씨 물 추출물은 농도 의존적으로 항산화 활성이 증가되었으며, $1,000\;{\mu}g$/mL농도에서 DPPH와 hydroxyl radical 소거능이 각각 38.9, 93.1%로 가장 높게 나타났다. 이는 차조기씨에 함유된 130.7 mg/g의 높은 페놀 함량에 기인하여 항산화 효과를 나타내었다. 한편 차조기씨 물 추출물을 처리하지 않은 세포에서는 현저히 높은 양의 히스타민을 분비하였지만, 각 추출물의 농도로 처리시킨 세포에서의 분비량은 유의적으로 감소되었고, IL-4와 TNF-$\alpha$의 분비량 모두 차조기씨 물 추출물을 처리군은 대조군에 비해서 유의적으로 낮은 생성량을 보여주었다. 결과적으로 차조기씨 물추출물은 비만세포에 항원-항체 반응으로 인해 발병되는 제1형 알레르기 반응의 약학적 효능을 가진 것으로 나타나 임상적으로 유용하게 사용될 수 있을 것으로 사용되며, 향후 이에 대한 심층적이고 체계적인 연구가 뒤따라야 할 것으로 생각된다.

보폐양영전(保肺養營煎)이 알레르기 염증반응에서 Cytokines 및 Transcription에 미치는 영향 (Anti-allergic Effect of Bopyeoyangyeong-jun to Cytokines and Transcription)

  • 이재혁;김홍기;신우진;김진영;박동일
    • 동의생리병리학회지
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    • 제23권1호
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    • pp.127-134
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    • 2009
  • In the present study, we investigated the anti-allergic effect of the water extract of Bopyeoyangyeong-jun(BYJ) to cytokines and transcription. To investigate the biological effect of BYJ, We examined cytotoxicity and inflammatory cytokine secretion with RBL-2H3. We examined tumor necrosis factor-alpha(TNF-$\alpha$), interleukin(IL)-4 secretion from RBL-2H3 cell after pre- treatment with Bopyeoyangyeong-jun of $1\;mg/m{\ell}$, $2\;mg/m{\ell}$. RBL-2H3 cell was stimulated with phorbol 12-myristate 13-acetate(PMA) and calcium ionophore A23187. We observed that Bopyeoyangyeong-jun reduced TNF-$\alpha$, IL-4 secretion and mRNA expression in RBL-2H3 cells. Moreover, the expression of levels of cyclooxygenase (COX)-2 mRNA, nuclear factor-kappa B (NF-${\kappa}B$) (p65) protein, ERK MAPK, and the degradation of level inhibitor kappa B-alpha ($I{\kappa}B-{\alpha}$) were down-regulated by BYJ. Taken together, these results indicate that Bopyeoyangyeong-jun hascontrols TNF-$\alpha$, IL-4 secretion on allergic reaction.

Effects of Nodakenin, Columbianadin, and Umbelliferone Isolated from the Roots of Angelica decursiva on the Gene Expression and Production of MUC5AC Mucin from Human Airway Epithelial NCI-H292 Cells

  • Lee, Hyun Jae;Lee, Choong Jae
    • Natural Product Sciences
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    • 제23권3호
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    • pp.201-207
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    • 2017
  • Angelica decursiva has been utilised as remedy for controlling the airway inflammatory diseases in folk medicine. We investigated whether nodakenin, columbianadin, and umbelliferone isolated from the roots of Angelica decursiva inhibit the gene expression and production of MUC5AC mucin from human airway epithelial cells. Confluent NCI-H292 cells were pretreated with nodakenin, columbianadin or umbelliferone for 30 min and then stimulated with epidermal growth factor (EGF), phorbol 12-myristate 13-acetate (PMA) or tumor necrosis $factor-{\alpha}$ ($TNF-{\alpha}$) for 24 h. The MUC5AC mucin gene expression was measured by reverse transcription - polymerase chain reaction (RT-PCR). Production of MUC5AC mucin protein was measured by enzyme-linked immunosorbent assay (ELISA). The results were as follows: (1) Nodakenin did not affect the expression of MUC5AC mucin gene induced by EGF, PMA or $TNF-{\alpha}$. Columbianadin inhibited the expression of MUC5AC mucin gene induced by EGF or PMA. However, umbelliferone inhibited the expression of MUC5AC mucin gene induced by EGF, PMA or $TNF-{\alpha}$; (2) Nodakenin also did not affect the production of MUC5AC mucin protein induced by EGF, PMA or $TNF-{\alpha}$. Columbianadin inhibited the production of MUC5AC mucin protein induced by PMA. However, umbelliferone inhibited the production of MUC5AC mucin protein induced by EGF, PMA or $TNF-{\alpha}$. These results suggest that, among the three compounds investigated, umbelliferone only inhibits the gene expression and production of MUC5AC mucin stimulated by various inducers, by directly acting on airway epithelial cells, and the results might explain the traditional use of Angelica decursiva as remedy for diverse inflammatory pulmonary diseases.

Anti-inflammatory Activity of Chrysanthemum indicum L. Extract in Lipopolysaccharide-treated Rats

  • Lee, Eun
    • Natural Product Sciences
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    • 제15권2호
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    • pp.55-59
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    • 2009
  • This study for developing a new anti-inflammatory medicine was sought by investigating the antiinflammatory properties of C. indicum L. extract. Rats were treated with either saline (control) or C. indicum L. extract and then injected with LPS. We found that the plasma concentration of IL-1${\beta}$ IL-6, TNF-${\alpha}$and IL-10 peaked at 5h after LPS injection, and the plasma concentration of IL-6 and TNF-${\alpha}$ showed a tendency to decrease, and IL-10 concentration showed a tendency to increase with increasing levels of C. indicum L. extract. In the liver concentration of cytokines at 5 h post LPS injection, IL-1${\alpha}$ and IL-6 decreased with increasing concentration of C. indicum L. extract, however TNF-${\alpha}$ and IL-10 did not differ significantly the treatment groups.

Tumor Necrosis Factor (TNF)-${\alpha}$로 유도된 피부각질형성세포의 염증성 반응에서 봉독의 효과 (The Effects of Bee Venom on Tumor Necrosis Factor (TNF)-${\alpha}$ Induced Inflammatory Human HaCaT Keratinocytes)

  • 이우람;김경현;안현진;김정연;한상미;이광길;박관규
    • 생약학회지
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    • 제45권3호
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    • pp.256-261
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    • 2014
  • Bee venom (BV) therapy has been used as a traditional medicine to treat a variety of conditions, such as arthritis, back pain, cancerous tumors, and skin diseases. However, regulatory effects of BV on tumor necrosis factor (TNF)-${\alpha}$-induced HaCaT cell migration or anti-inflammatory have not been explored. In the present study, we investigated the effects of BV on HaCaT cell migration and anti-inflammation. HaCaT cell migration was evaluated by wound-healing assay. The pro-inflammatory cytokines such as TNF-${\alpha}$, interleukin (IL)-$1{\beta}$, and IL-8 were examined by ELISA or Western blotting. BV treatment led to an increase in migration of HaCaT cells for 24 and 48 h. Especially, 10 ng/ml of BV were significantly increased HaCaT cell migration. Also, BV suppressed the secretion of TNF-${\alpha}$, IL-$1{\beta}$, and IL-8 in culture medium with HaCaT cells. In addition, Western blot results demonstrate that BV suppressed the expression of TNF-${\alpha}$ and IL-$1{\beta}$, in HaCaT cells. Especially, 1 or 10 ng/ml of BV markedly decreased the expression of pro-inflammatory cytokines. These results demonstrate the potential of BV for the prevention of skin inflammation induced by TNF-${\alpha}$.

돼지에서 분리된 Lactobacillus Strains의 균체분해산물에 의한 RAW 264.7 Macrophage 활성화 (Activation of RAW 264.7 Macrophage by Digested Bacterial Cell of Pig-derived Lactobacillus Strains)

  • 김동운;조성백;정하연;문홍길;이현정;황보종;정완태;최창원;정일병
    • Journal of Animal Science and Technology
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    • 제47권6호
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    • pp.947-954
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    • 2005
  • 경구로 섭취된 생균제가 소화관 효소의 작용을 받은 경우 장관면역계의 macrophage에 미치는 영향을 조사하기 위하여 돼지의 장내에서 분리된 lactobacilli를 pepsin과 pancreatin과 같은 소화관 효소로 분해한 균체분해산물에 의해 RAW 264.7 murine macrophage에서 유도되는 NO, TNF-$\alpha$ 및 IL-6의 생성을 측정하였다. Macrophage에서 유도되는 NO, TNF-$\alpha$ 및 IL-6는 균종과 균체분해산물의 양에 따라 달랐다. NO의 생성수준은 10~150 ug/ml의 분해물에서 관찰 되었으나 TNF-$\alpha$와 IL-6는 50~300 ug/ml의 고농도처리에서 나타났다. 6개의 Lactobacillus strains 중에서 3149와 3156 균주는 다른 균주에 비해 TNF-$\alpha$와 IL-6 유도능이 높았다. 또한 소화관 효소에 의해 분해된 lactobacilli의 균체분해산물의 성분이 macrophage 활성 증가와 관련이 있으며 생체내에서 숙주면역계를 조절할 것으로 사료된다. 본 시험에서 사용한 방법은 소화관 면역계에 미치는 유산균의 효과를 규명하는데 유익할 것이다.