Background: It has been recently noticed that type 2 diabetes (T2D), one of the most common metabolic diseases, causes a chronic low-grade inflammation and activation of the innate immune system that are closely involved in the pathogenesis of T2D. Cordyceps militaris, a traditional medicinal mushroom, produces a component compound, cordycepin (3'-deoxyadenosine). Cordycepin has been known to have many pharmacological activities including immunological stimulating, anti-cancer, and anti-infection activities. The molecular mechanisms of cordycepin in T2D are not clear. In the present study, we tested the role of cordycepin on the anti-diabetic effect and anti-inflammatory cascades in LPS-stimulated RAW 264.7 cells. Methods: We confirmed the levels of diabetes regulating genes mRNA and protein of cytokines through RT-PCR and western blot analysis and followed by FACS analysis for the surface molecules. Results: Cordycepin inhibited the production of NO and pro-inflammatory cytokines such as IL-$1{\beta}$, IL-6, and TNF-${\alpha}$ in LPS-activated macrophages via suppressing protein expression of pro-inflammatory mediators. T2D regulating genes such as $11{\beta}$-HSD1 and PPAR${\gamma}$ were decreased as well as expression of co-stimulatory molecules such as ICAM-1 and B7-1/-2 were also decreased with the increment of its concentration. In accordance with suppressed pro-inflammatory cytokine production lead to inhibition of diabetic regulating genes in activated macrophages. Cordycepin suppressed NF-${\kappa}B$ activation in LPS-activated macrophages. Conclusion: Based on these observations, cordycepin suppressed T2D regulating genes through the inactivation of NF-${\kappa}B$ dependent inflammatory responses and suggesting that cordycepin will provide potential use as an immunomodulatory agent for treating immunological diseases.
Gyeong-Ran Noh;Bitna Kweon;Dong-Uk Kim;Jin‑Young Oh;Gabsik Yang;Il-Joo Jo
Journal of Convergence Korean Medicine
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v.6
no.1
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pp.29-36
/
2024
Objectives: Psoriasis is a common chronic inflammatory skin disease characterized by keratinocyte hyperproliferation and an excessive inflammatory response. Agents that can attenuate keratinocyte hyperproliferation and excessive inflammatory responses are considered potentially useful for the treatment of psoriasis. Daehwangmokdanpitang (DHMDPT) exhibits a broad range of bioactivities, including anti-proliferative and anti-inflammatory effects. This study aims to evaluate the anti-psoriatic potential of DHMDPT in vitro. Methods: HaCaT keratinocytes were stimulated with a mixture of IL-17A, IL-22, oncostatin M, IL-1α, and TNF-α (M5) to establish an in vitro psoriatic keratinocyte model. Cell viability was measured using the MTT assay. Quantitative real-time PCR (qRT-PCR) was performed to measure the mRNA levels of the hyperproliferative marker gene keratin 6 (KRT6) and inflammatory factors such as IL-6, TNF-α, and IL-23A. Additionally, chemokines including CCL5, CCL2, CCL20, and CXCL1 were measured by qRT-PCR. Results: DHMDPT attenuated M5-induced hyperproliferation, as indicated by a reduction in KRT6 expression in HaCaT keratinocytes. M5 stimulation significantly upregulated the mRNA levels of IL-6, TNF-α, and IL-23A. However, DHMDPT treatment attenuated the upregulation of IL-6 but not TNF-α or IL-23A. Additionally, DHMDPT inhibited the expression of CCL5, CCL2, and CXCL1, but not CCL20. Conclusion: DHMDPT effectively attenuated the M5-induced proliferation and inflammatory response in HaCaT keratinocytes. Therefore, DHMDPT could be an attractive candidate for future development as an anti-psoriatic agent.
Kim, Min-Jun;Bae, Gi-Sang;Choi, Sun Bok;Jo, Il-Joo;Kim, Dong-Goo;Shin, Joon-Yeon;Lee, Sung-Kon;Kim, Myoung-Jin;Park, Sung-Joo;Song, Ho-Joon
The Korea Journal of Herbology
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v.29
no.6
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pp.21-26
/
2014
Objectives : Taraxacum coreanum (TC) have been used as a traditional medicine to treat inflammatory diseases and anti-oxidant effect in Korea. However, the anti-inflammatory effect of TC water extract on lipopolysaccharide (LPS)-induced inflammation is not well-known. Therefore, this study was performed to identify the anti-inflammatory effect of TC on LPS induced inflammatory. Methods : RAW 264.7 cells were treated with 500 ng/mL of LPS. Water extracts of TC (0.1, 0.25, 0.5 mg/ml) was treated 1 h prior to LPS. Cell viability was measured by MTT assay. Levels of nitric oxide (NO) were measured with Griess reagent and pro-inflammatory cytokines were measured by enzyme-linked immunosorbent assay (ELISA) and real-time polymerase chain reaction (real-time PCR). We also examined molecular mechanisms such as mitogen-activated protein kinases (MAPKs) and nuclear factor-B ($NF-{\kappa}B$) activation by western blot. Results : Water Extract from TC itself did not have any cytotoxic effect in RAW 264.7 cells. TC treatment inhibited the production of NO production, and pro-inflamamtory cytokines such as interleukin (IL)-6 and $IL-1{\beta}$ on protein and mRNA levels. In addition, TC treatment inhibited the LPS-induced activation of MAPKs such as extracellular signal-regulated kinase1/2 (ERK1/2), p38 kinases (p38), c-Jun $NH_2$-terminal kinase (JNK) and $NF-{\kappa}B$. Conclusions : In summary, our result suggest that treatment of TC could reduce the LPS-induced inflammation. Thereby, TC could be used as a protective agent against inflammation. Also, this study could give a clinical basis that TC could be a drug or agent to prevent inflammation.
Kim, Ju-Won;Lee, Chang-Youn;Oh, Seung-Min;Kim, Jwa-Young;Yang, Byoung-Eun
Maxillofacial Plastic and Reconstructive Surgery
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v.34
no.6
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pp.449-454
/
2012
Purpose: Intravenous sedation with midazolam is common in contemporary dentistry. That is effective for anxious patients, but additional analgesic agent needs to be used, because midazolam alone doesn't have an analgesic effect. This study was performed to select an analgesic agent between an opioid agent, and nonsteroidal anti-inflammatory drugs as adjunctives in intravenous sedation with midazolam. Methods: The subjects were 60 patients who visited the Department of Oral and Maxillofacial Surgery, Sacred Heart Hospital, Hallym University, between August 2009 and February 2010. Conscious sedation was performed on 20 patients of 3 groups (control group, ketorolac group, and fentanyl group), who were divided randomly. The analgesic agent was administrated preoperatively. For sedation, vital signs were recorded. After sedation and operation, subjective questionnaires of the patient and operator were implemented. Results: All of the $SPO_2$, blood pressure, and heart rates stayed within the normal range for sedation. The sedation depth and analgesic effect of the ketorolac group and fentanyl group were similar. In the case of sedation depth, 12 patients in the ketorolac group and 14 patients in the fentanyl group had no memory of surgery. In the case of analgesic effect, the visual analogue scale of pain scored 2~3 in 13 patients in the ketorolac group, and 0~2 in 12 patients in the fentanyl group. The satisfaction of patients and doctors was also similar. Conclusion: Considering the management and complication of an opioid agent, non-steroidal anti-inflammatory drugs is more effective than an opioid agent.
The pharmacological activities of paeoniflorin abtained from paeony roots, F$_M$100 from glycyrrhiza roots, crude saikosides from bupleurum roots, crude platycodin from platycodon roots, and bothj of ginsenoside Rb and ginsenoside Rg series from ginseng roots were investigated. Paeoniflorin, F$_M$ 100, crude saikosides, and crude platycodin exhibited sedative antipyretic, anlagesic and anti-ulcerative actions. In addition, crude saidosides and crude platycodin showed antitusaive and the potent anti-inflammatory action. An expectorant action was also observed with crude platycodin. These results coincided with the clinical applications of the aforementioned oriental medicinals. It also should be noted that crude saikosides nad crude platycodin are preferable to the other steroidal nad nonsteroidal drugs as an anti-inflammatory agent, because the drugs aggravate the digestive ulcer. In ginseng, G No3. and GNS frctions out of ginsenoside Rb series hsowed stimulant and antifatigue actions. The synergistic effects identified between paeoniflorin and F$_M$ 100 on the various pharmacological activities, have verified the reasonability of combined uses of two oriental drugs as Jakyak Gaqmcho-Tang.
Kang, Yun-Mi;Jeon, Eun-jin;Chung, Kyung-Sook;Cheon, Se-Yun;Park, Jong Hyuk;Han, Yoo-Chang;An, Hyo-Jin
The Korea Journal of Herbology
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v.32
no.2
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pp.25-32
/
2017
Objectives : This study was conducted to investigate candidate materials as anti-inflammatory agent from extracts of Korean medicinal plants in Hwaak mountain. Ligustrum obtusifolium (LO) is a Korea medicinal plants that commonly used for robustness and hemostasis. It has been reported that LO has exhibited anti-ischemic, anti-oxidative, anti-hypolipidemic, anti-tumor and hypoglycemic effects. However, LO has not been previously reported to have an anti-inflammatory effect. Therefore, we have evaluated the anti-inflammatory effects of LO and its underlying molecular mechanisms in LPS-induced RAW 264.7 macrophages. Methods : Cell viability was determined by MTT assay in RAW 264.7 macrophages. Nitric Oxide (NO) was measured with Griess reagent and pro-inflammatory cytokines were detected by ELISA in lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophages. Protein expressions of inducible nitric oxide synthase (iNOS), cyclooxygenase-2 (COX-2) and p65 subunit of nuclear $factor-{\kappa}B$ ($NF-{\kappa}B$) were determined by Western blot analysis. Results : Among 15 extracts of Korean medicinal plants tested, Ligustrum obtusifolium (LO) showed the inhibition of NO production without cytotoxicity. LO reduced the expression levels of iNOS and COX-2 proteins in LPS-simulated RAW 264.7 macrophages in dose-dependent manner. Consistent with these data, LO inhibited the productions of $TNF-{\alpha}$, IL-6, and $IL-1{\beta}$ in LPS-simulated RAW 264.7 macrophages. Furthermore, LO attenuated the LPS-induced nuclear translocation of p65 $NF-{\kappa}B$ in RAW 264.7 macrophages involving suppression of $NF-{\kappa}B$ activation. Conclusions : Taken together, these results suggest that the anti-inflammatory effects of LO is associated with regulation of inflammatory mediators via inhibition of $NF-{\kappa}B$ activation in LPS-treated RAW 264.7 macrophages.
Park, Chan Woong;Ma, Kyung Wan;Jang, Sun Woo;Son, Miwon;Kang, Myung Joo
Biomolecules & Therapeutics
/
v.22
no.3
/
pp.260-266
/
2014
This study evaluated the pharmacokinetic profile and therapeutic efficacy of piroxicam (PX), a long acting non-steroidal anti-inflammatory drug for the treatment of arthritis, following intra-articular (IA) injection in comparison to the pharmacokinetic profile and therapeutic efficacy of PX after intramuscular (IM) injection. In the pharmacokinetic study in rats, systemic exposure and pharmacokinetic parameters of PX after a single IA dose were compared with systemic exposure and pharmacokinetic parameters of PX after administration of the same dose IM (0.6 mg/kg). The anti-inflammatory and analgesic effects of IA PX were evaluated simultaneously in a monoiodoacetate-induced osteoarthritis rat model. The plasma PX concentration rapidly rose following IA injection, and it was comparable to the plasma PX concentration following IM injection, suggesting the rapid efflux of the drug molecule from the joint cavity. However, in the efficacy study, the IA PX administration significantly reduced the knee swelling by reducing the level of prostaglandin $E_2$ in the joint, compared to that following administration of IA vehicle and after administration of the IM PX dose. In addition, we found that the anti-inflammatory and anti-nociceptive efficacies of IA PX were synergistically increased upon co-treatment with hyaluronic acid (HA), a potent agent for the treatment of osteoarthritis, at the weight ratio of 1:1 or 1:2, and these effects were more pronounced than those following administration of HA or PX alone. In conclusion, this study demonstrated the efficacy of the IA use of PX alone and/or in combination with HA in osteoarthritis.
Kim, Hyun Young;Lee, Mi-Ja;Seo, Woo Duck;Choi, Sik-Won;Kim, Sun Lim;Jung, Gun-Ho;Kang, Hyeon Jung
Korean Journal of Food Science and Technology
/
v.49
no.6
/
pp.710-713
/
2017
This study evaluates the ability of corn silk (Zea mays L.) extract to function as a natural anti-inflammatory and anti-atopic therapeutic agent. The anti-inflammatory effects of corn silk were evaluated by measuring the inhibitory activities of nitric oxide (NO) and production of tumor necrosis factor-${\alpha}$ (TNF-${\alpha}$. Anti-atopic effects were assessed by measuring the repression of thymus and activation-regulated chemokine (TARC). These results indicated that NICS-1 (corn silk ethanol extract) and NICS-3 (high maysin corn silk ethanol extract) functioned as anti-inflammatory agents by down-regulating LPS-induced NO and TNF-${\alpha}$. Additionally, two extracts showed weak repression of TARC expression levels in tumor necrosis factor TNF-${\alpha}$ plus IFN-${\gamma}$ induced HaCaT cells, respectively. These results suggest that corn silk extracts have anti-inflammatory and anti-atopic activities, and thus have the potential to reduce and alleviate the symptoms associated with atopic dermatitis.
Saururus chinensis is a perennial plants, its flavonoid compound is known to exhibit anti-oxidative activity. This study was aimed to investigate the effect of Water Extract and Solvent Fractions of Saururus chinensis on antioxidant, anti-inflammatory and anti-invasive of Phorbol 12-myristate 13-acetate (PMA)-induced matrix metalloproteinase (MMP-2) and MMP-9 activities. Plant samples were fractionated into hexane, CHCl3, ethyl acetate, butanol, and water fractions, and each of these was assayed individually. The water fraction showed the highest extraction yield at 9.25%(w/w). Anti-oxidative activity was analyzed by DPPH assay. Cell viability was detected by the MTS assay. Anti-inflammatory activity was assayed by the nitric oxide (NO) production in mouse macrophage Raw 264.7 cells. The activity and mRNA expression of MMP-2 and MMP-9 in human oral squamous carcinoma YD-10B cells were examined by zymography and RT-PCR. As results, MMP-2/-9 activation was increased in PMA induced YD-10B cells. In PMA-treated YD-10B cells, the increased mRNA expression and protein activation of MMP-2/-9 were significantly inhibited in the ethyl acetate fraction. The ethyl acetate fraction showed the highest anti-oxidative activity at 73.38%. The ethyl acetate fraction at non-cytotoxic concentrations significantly exhibited the anti-inflammatory activity of Raw 264.7 cells in dose-dependent manner. In conclusion, these findings demonstrate that the ethyl acetate fraction obtained from a chinensis water extract potentiates a promising therapeutic anti-invasive agent and, therefore, as an anti-cancer drug for cancer prevention and therapy in oral cancer.
Proceedings of the Plant Resources Society of Korea Conference
/
2019.04a
/
pp.123-123
/
2019
Xanthone is a kind of polyphenolic compounds that contain a distinctive chemical structure with a tricyclic aromatic ring found in a few higher plant families e.g. gentian root. This compound had a variety of biological activity, for instance antioxidant, antibacterial, anti-inflammatory, and anticancer effects. However, the effect of xanthone on mast cell-mediated allergic inflammation and its associated mechanism have not been elucidated. Therefore, the aim of this study was to elucidate the anti-allergic inflammatory effects and the underlying molecular mechanism of xanthone in PMACI-stimulated human mast cells-1 (HMC-1). In this result, xanthone treatment decreased the production of histamine, pro-inflammatory cytokines such as tumor necrosis factor-a (TNF-${\alpha}$), IL-6, and IL-8 and expressions of TSLP in PMACI-stimulated HMC-cells. In addition, xanthone significantly suppressed the phosphorylation of MAPKs and the activation of NF-${\kappa}B$ signal pathway in activated mast cells. Furthermore, xanthone inhibited the activation of caspase-1, an IL-$1{\beta}$ converting enzyme, in PMACI-stimulated HMC-1 cells. These findings provide evidence that xanthone could be a potential therapeutic agent for allergy-related inflammatory disorders.
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