• 생명과학회지
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• 제18권4호
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• pp.542-549
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• 2008

Cisplatin은 임상적으로 다양한 종류의 종양 치료에 사용되는 중요한 항암제 중의 하나이다. 그러나 cisplatin은 이독성, 신장독성, 골수독성, 위장독성 및 말초신경독성 등의 심각한 부작용으로 인하여 사용이 제한적이다. Cisplatin에 의한 청각장애에서 organ of Corti 외측 유모세포(outer hair cells) 손상이 유발한다. Cisplatin에 의한 세포독성에 대한 연구가 진행 중이지만 pro-inflammatory cytokine과 관련된 청각세포사멸에 대한 연구는 미비하다. 이 연구에서 cisplatin은 청각세포주 HEI-OC1 세포와 렛트 cochlear explant에서 염증성 사이토카인인 $TNF-{\alpha}$, $IL-1{\beta}$ 및 IL-6의 유전자 발현과 분비를 현저히 증가시켰다. 이들 염증성 사이토카인은 organ of Corti 청각유모세포에 직접적인 세포독성을 나타내어 외측 및 내측 유모세포와 배열을 파괴하였다. 염증반응에서 중요한 $TNF-{\alpha}$를 cisplatin을 처리한 실험군에서 immunocytochemistry를 통하여 관찰 한 결과 organ of Corti에서의 발현이 현저히 증가됨을 관찰하였다. 염증성 사이토카인에 대한 중화항체를 처리하여 cisplatin에 의한 세포독성이 현저히 감소됨을 HEI-OC1 세포와 청각유모세포에서 확인하였다. 또한 GSH, NAC와 같은 항산화제를 처리하여 세포독성이 현저히 감소됨을 확인하였다. 이상의 결과는 cisplatin에 의한 청각유모세포의 죽음에서 $TNF-{\alpha}$, $IL-1{\beta}$ 및 IL-6와 같은 염증성 사이토카인이 병리 생리학적으로 중요한 역할을 하고 있음을 시사한다.

• 한국버섯학회지
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• 제13권1호
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• pp.1-10
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• 2015

Russula rosacea, a mycorrhizal fungus, has been used for edible and medicinal purposes. This study was conducted to evaluate the in vitro antioxidant, anti-hyperglycemic, anti-cholinesterase, and nitric oxide inhibitory effects of the fruiting bodies from R. rosacea extracted with methanol, and hot water. The 1,1-diphenyl-2-picryl hydrazyl (DPPH) radical scavenging activities of the methanol and hot water extracts (2.0 mg/ml) of R. rosacea were comparable with BHT, the positive control. The chelating effects of the mushroom and hot water extracts were significantly higher than that of BHT. The reducing power of methanol and hot water extract (6 mg/ml) were significantly lower than that of BHT. Seven phenolic compounds were detected from acetonitrile and hydrochloric acid solvent extract of the mushroom. alpha-amylase and alpha-glucosidase inhibitory activities of methanol and hot water extracts were lower than that of acarbose, the positive control. The acetylcholinesterase and butyrylcholinesterase inhibitory effects were moderate compared with galanthamine, the standard drug. Nitric oxide (NO) production in lipopolysaccharide (LPS) induced RAW 264.7 cells were inhibited significantly by the mushroom extracts in a concentration dependent manner. Therefore, we demonstrated that fruiting bodies of R. rosacea possess in vitro antioxidant, anti-hyperglycemic, anti-cholinesterase, and NO production inhibitory activities. The experimental results suggest that the fruiting bodies of R. rosacea are good natural antioxidant, anti-hyperglycemic, anti-cholinesterase, and anti-inflammatory sources.

• Asian Pacific Journal of Cancer Prevention
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• 제15권14호
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• pp.5501-5508
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• 2014

Luteolin, 3', 4', 5,7-tetrahydroxyflavone, belongs to a group of naturally occurring compounds called flavonoids that are found widely in the plant kingdom. It possesses many beneficial properties including antioxidant, anti-inflammatory, anti-bacterial, anti-diabetic and anti-proliferative actions. Colorectal cancer (CRC) is a leading cause of cancer related deaths worldwide. Many signaling pathways are deregulated during the progression of colon cancer. In this review we aimed to analyze the protection offered by luteolin on colon cancer. During colon cancer genesis, luteolin known to reduce oxidative stress thereby protects the cell to undergo damage in vivo. Wnt/${\beta}$-catenin signaling, deregulated during neoplastic development, is modified by luteolin. Hence, luteolin can be considered as a potential drug to treat CRC.

• 약학회지
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• 제44권3호
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• pp.245-250
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• 2000

Because nonsteroidal anti-inflammatory drugs are reported to cause fluid retention and hypertension by inhibition of prostaglandin synthesis, the effects of piroxicam on pharmacodynamics and pharmacokinetics of nifedipine were studied in male spontaneously hypertensive rats. They received nifedipine (0.5 mg/kg) alone or combined with piroxicam (5 mg/kg) intravenously. Plasma levels norepinephrine, an index of sympathetic stimulation, were measured prior to each treatment and 5 min after drug administration. Changes in blood pressure were examined serially and blood samples for analysis of nifedipine were also taken for 6 hr following drug administration. Plasma nifedipine concentration were assayed by HPLC and pharmacokinetic parameters were calculated. Blood pressure was reduced (p<0.01), but plasma norepinephrine level was increased (p<0.05) by nifedipine administration. Anti-hypertensive effect of nifedipine was potentiated (p<0.05) by piroxicam coadministration, but effect of nifedipine on plasma norepinephrine level was not affected. In case of rats received nifedipine and piroxicam, plasma nifedipine concentrations were higher (p<0.05) than those from rats received nifedipine alone at 2,3,4,5 and 6 hours following drug administration. The area under the plasma concentration vs. time curve was increased (p<0.05), while the elimination rate constant was decreased (p<0.01) by piroxicam coadministration. No significant differences were observed in the plasma clearance, apparent volume of distribution and elimination half-life. Thus, piroxicam not only potentiated antihypertensive effect of nifedipine, but also altered nifedipine pharmacokinetics in the rats. It is concluded that the potentiation of nifedipine antihypertensive effect might correlate with the increment of its plasma concentration by piroxicam coadministration.

• 생약학회지
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• 제45권2호
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• pp.93-100
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• 2014

The Acer tegmentosum (3 kg) were extracted with boiled water and the freeze dried extract powder was partitioned with $CH_2Cl_2$, EtOAc, n-BuOH and $H_2O$, successively. From the EtOAc and n-BuOH fraction, six phenolic compounds were isolated through the silica gel, octadecyl silica gel and sephadex LH-20 column chromatography. On the basis of spectroscopic methods, such as $^1H$-NMR and $^{13}C$-NMR, and LC/MS, the chemical structures of the compounds as feniculin (1), avicularin (2), (+)-catechin (3), (-)-epicatechin (4), salidroside (5) and 6'-O-galloylsalidroside (6). In this study, compounds 1 and 2 have been first isolated from the A. tegmentosum. To provide insight into the effects of six compounds isolated from A. tegmentosum on inflammation, we investigated its effect on nitric oxide (NO) production in RAW 264.7 cells using lipopolysaccharide (LPS) stimulation. Compounds 1 and 6 slightly repressed NO production. Also, compounds 3 and 4 inhibited NO secretion with statistical significance. However, compounds 2 and 5 did not show any inhibitory effect on NO production.

• 동의생리병리학회지
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• 제18권6호
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• pp.1805-1809
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• 2004

In order to validate the use of Radix Curcumae Aromaticae as an anti-inflammatory drug in the traditional Korean medicine, I have investigated the effect of water-soluble extract of Radix Curcumae Aromaticae (ECA) on the expression of inducible heme oxygenase-1 (HO-1), which ha.s anti-inflammatory and cytoprotective effects stimulates, in human umbilical vein endothelial cells (HUVECs) stimulated with a high dose of pro-inflammatory tumor necrosis factor-alpha (TNF-α). The extract protected dose-dependently HUVECs against TNF-α-induced apoptosis, as measured qualitatively by a nuclear staining method using the fluoresoence DAPI and quantitatively by a flow cytometry using fluoresce-enhanced Annexin V antibody, and significantly Increased HO-1 expression, as determined by Western blotting analysis using anti-HO-1 antibody. Biockage of HO-1 activity by a pharmacological inhibitor reversed cytoprotection afforded by the extract, and treatment with carbon monoxide, one of HO-1 metabolites, resulted in cytoprotection comparable to the extract. These results suggest that ECA may have therapeutic potential in the control of endothelial disorders caused by inflammatory cytokines.

• Journal of Microbiology and Biotechnology
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• 제24권10호
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• pp.1346-1353
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• 2014

In the present study, an anthraquinone derivative, questinol was successfully isolated from the broth extract of the marine-derived fungus Eurotium amstelodami for the first time. The structure of questinol was determined based on the analysis of the MS and NMR spectral data as well as comparison of those data with the published data. Moreover, the anti-inflammatory effect of questinol in lipopolysaccharide (LPS)-stimulated RAW 264.7 cells was investigated. The results showed that questinol did not exhibit cytotoxicity in LPS-stimulated RAW 264.7 cells up to $200{\mu}M$. Questinol could significantly inhibit NO and $PGE_2$ production at indicated concentrations. Questinol was also found to inhibit the production of pro-inflammatory cytokines, including TNF-${\alpha}$, IL-1${\beta}$, and IL-6. Furthermore, the western blot analysis showed that questinol suppressed the expression level of iNOS in a dose-dependent manner. However, questinol could slightly inhibit the expression of COX-2 at the concentration of $200{\mu}M$. Therefore, our study suggests that questinol might be selected as a promising agent for the prevention and therapy of inflammatory disease.

• 동의생리병리학회지
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• 제16권6호
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• pp.1284-1290
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• 2002

Scrophularia buergeriana Miquel (Scrophulariaceae) has been used as an anti-inflammatory drug in the folk medicine recipe and been proved its anti-inflammatory effect in the oriental medicine. Since nitric oxide (NO) and superoxide anion (O/sub 2//sup -/) are ones of the major inflammatory parameters, we studied the effect of aqueous extracts of Scrophularia buergeriana (SB) on NO and O/sub 2//sup -/ production in lipopolysaccharide (LPS)-stimulated mouse peritoneal macrophages. NO, O/sub 2//sup -/production and inducible NO synthase (iNOS) level were significantly reduced in LPS-activated macrophages by SB compared to those without. Electrophoretic mobility shift assay (EMSA) indicated that SB blocked the activation of NF-kB, which was considered to be a potential transcription factor for the iNOS expression. SB also blocked degradation of IkBα. Furthermore, IkB kinase alpha (IKKα), which phosphorylates serine residues of IkB directly, is inhibited by SB. These results suggest that SB could exert its anti-inflammatory actions by suppressing the activation of NF-kB through inhibition of IKK activity.

• 대한한방부인과학회지
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• 제18권4호
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• pp.36-53
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• 2005

Purpose : The Purpose of this research was to investigate the effects of Haingkyunghonghwatang (HKHHT) on anti-inflammatory effects. Methods : As for the parameters of inflammation, levels of several inflammatory cytokines and chemical mediators were determined in mouse lung fibroblast cells(mLFC) and RAW264.7 cells. Also, changes in pathological features by drug treatment were investigated in the in vivo edema-induced rats by carrageenin/arachidonic acid or in the colitis-induced mice by DSS treatment. Results : The cytotoxicity of HKHHT on mLFC and RAW264.7 cells wasn't observed at 100, 50, 10, and $1{\mu}g/ml$ of The treatments. $IL-1{\beta}$, IL-6 and NOS-II mRNA expression of RAW264.7 cells was inhibited by The treatments in a dose-dependent manner. HKHHT treatment of RAW264.7cells(HtRc) inhibited $TNF-{\alpha}$ and COX-2 mRNA expression. HtRc significantly inhibited IL-6 and NO production. HtRc inhibited ROS production. HKHHT inhibited rat's paw edema induced by carrageenin or arachidonate treatment in all concentrations examined. The body weight and colon length of colitis-induced mice were recovered to a normal level by DSS treatment. Clinical disease levels were significantly improved compared to the control animals. HKHHT treatment of colitis-induced mice(HtCm) significantly increased hematological values such as WBC and RBC counts, Hgb and HCT levels, but decreased PLT values. HtCm decreased IL-6 and $TNF-{\alpha}$ production significantly HtCm significantly increased CD3+(T) cell counts. In contrast, HKHHT treatment decreased CD19+ B cell counts and CD3+/CD69+ significantly, and also decreased B/T ratio (%) though not significant. Conclusion : These results indicated that HKHHT could be used for treating diverse female diseases caused by the inflammation.

• 대한한방부인과학회지
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• 제18권3호
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• pp.92-109
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• 2005

Purpose : The Purpose of this research was to investigate the effects of Cheongyeolhawlhyeoltanggagyehyeoldeung (CYHHT) on anti-inflammatory effects. Methods : As for the parameters of inflammation, levels of several inflammatory cytokines and chemical mediators were determined in mouse lung fibroblast cells(mLFC) and RAW264.7 cells. Also, changes in pathological features by drug treatment were investigated in the in vivo edema-induced rats by carrageenin /arachidonic acid or in the colitis-induced mice by DSS treatment. Results : The cytotoxicity of CYHHT on mLFC and RAW264.7 cells was not observed at 100, 50, 10, and $1{\mu}g/ml$ of CYHHT treatments. $IL-1{\beta}$, IL-6 and NOS-IImRNA expression of RAW264.7 cells was inhibited by CYHHT treatments in a dose-dependent manner. CYHHT treatment of RAW264.7 cells inhibited $TNF-{\alpha}$ and COX-2 mRNA expression. CYHHT treatment of RAW264.7 cells significantly inhibited IL-6 and NO production. CYHHT treatment of RAW264.7 cells inhibited ROS production. CYHHT inhibited rat's paw edema induced by carrageenin or arachidonate treatment in all concentrations examined. The body weight and colon length of colitis-induced mice were recovered to a normal level by DSS treatment. Clinical disease levels were significantly improved compared to the control animals. CYHHT treatment of colitis-induced mice significantly increased hematological values such as WBC and RBC counts, Hgb and HCT levels, but decreased PLT values. CYHHT treatment of colitis-induced mice decreased IL-6 and $TNF-{\alpha}$ production significantly CYHHT treatment of colitis-induced mice significantly increased CD3+(T) cell counts. In contrast, CYHHT treatment decreased CD19+ B cell counts and CD3+/CD69+ significantly, and also decreased B/T ratio (%) though not significant. Conclusion : These results indicated that CYHHT could be used for treating diverse female diseases caused by the inflammation.