• Journal of Life Science
• /
• v.27 no.12
• /
• pp.1437-1444
• /
• 2017

Sargassum macrocarpum is a widely distributed marine brown algae found in the North Pacific. The objective of this study was to evaluate the anti-inflammatory activity of an ethanol extract of S. macrocarpum (EESM). First, we investigated the anti-inflammatory activities of EESM in lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophages. EESM treatment suppressed nitric oxide (NO) and prostaglandin $E_2$ ($PGE_2$) production and inhibited the expressions of the inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) at the mRNA and protein levels. In addition, the expression of pro-inflammatory cytokines, such as tumor necrosis $factor-{\alpha}$ ($TNF-{\alpha}$) and interleukin-1 beta ($IL-1{\beta}$), was decreased in a dose dependent manner. Investigation of the signaling pathways of nuclear factor kappa B ($NF-{\kappa}B$), phosphoinositide-3-kinase (PI3K)/Akt, and mitogen-activated protein kinases (MAPKs) revealed suppression of $NF-{\kappa}B$ translocation from the cytosol to nucleus by EESM treatment. The phosphorylation of the Akt and ERK proteins was also inhibited by EESM treatment. EESM treatment also stimulated the expression of the heme oxygenase-1 (HO-1) enzyme and its upstream transcription factor, nuclear factor-E2-related factor 2 (Nrf2). These results suggest that EESM has anti-inflammatory activity and could have potential uses in the field of nutraceuticals.

• Korean Journal of Food Science and Technology
• /
• v.46 no.1
• /
• pp.61-67
• /
• 2014

This study aimed to investigate the anti-inflammatory activities of raw (P) and roasted (RP) Perilla frutescens Britton (perilla) seeds in RAW 264.7 macrophages and an ulcerative colitis mouse model. In lipopolysaccharide-treated RAW 264.7 cells, treatment with ethanol extract of P at the concentrations of 75 and $150{\mu}g/mL$ decreased nitric oxide (NO), interleukin-6 (IL-6), and tumor necrosis factor-${\alpha}$ (TNF-${\alpha}$) levels to 48-85% of the control (p<0.01). Treatment with RP extract exhibited similar effects on NO, IL-6, and TNF-${\alpha}$, decreasing those levels to 51-84% of the control (p<0.01). In dextran sulfate sodium-treated ulcerative colitis mice, dietary treatment with 1% RP for 7 days decreased the colonic levels of prostaglandin $E_2$ and leukotriene $B_4$ to 34% and 58% of the control, respectively (p<0.05). Dietary P treatment, however, did not decrease those levels significantly. These results indicate that roasted perilla seed exerts anti-inflammatory activity both in vitro and in vivo.

• Clinical and Experimental Pediatrics
• /
• v.48 no.8
• /
• pp.894-900
• /
• 2005

Purpose : Because of the unavailability of marrow transplantation, umbilical cord blood (CB) is increasingly being used. We evaluated the potential of ex vivo expansion and clonality in CD34+ cells separated from cord blood source and mobilized peripheral blood (PB) in a serum-free media. Methods : The CD34+ cells, selected from CB and mobilized PB, were expanded with hematopoietic growth factors. They were then cultured for burst-forming units of erythrocytes (BFU-E), colony-forming units of granulocytes and monocytes (CFU-GM) and colony-forming units of megakaryocytes (CFU-Mk) at culture days 0, day 4, day 7, and day 14 with various growth factors. Results : The CB-selected CD34+ cells showed significantly higher total cell expansion than those from the PB at day 7 (2 fold increase than PB). The CB-selected CD34+ cells produced more BFU-E colonies than did the PB on culture at days 7 and at day 14. Also, the CB-selected CD34+ cells produced more CFU-Mk colonies than did the PB on culture at day 4 and at day 7. Conclusion : The ex vivo expansion of the CB cells may be promising in producing total cellular expansion, CFU-Mk and BFU-E compared with PB for 7 to 14 days. The growth factors combination including megakaryocyte growth and development, flt3-ligand and interleukin-3 showed more expansion in the view of total cells and clonal maintenance compared with less combination.

• Journal of Digital Convergence
• /
• v.16 no.7
• /
• pp.309-316
• /
• 2018

The purpose of this study was to investigate the effects of Violae Herba Water Extract (VH) on the proinflammatory factors of lipopolysaccharide (LPS)-induced on the production of inflammatory mediators in RAW 264.7 mouse macrophages cells. We examined effect of Violae Herba Water Extract on the cell viability of RAW 264.7 mouse macrophages cells. Futhermore, After 24 hours treatment we investigated anti-inflammatory effect of Violae Herba Water Extract by the production of Bio-Plex cytokine assay, concentrations of various cytokines such NO, $interleukin(IL)-1{\beta}$, tumor necrosis factor ${\alpha}(TNF-{\alpha})$ and IL-6. The water extract of Violae Herba significantly inhibited the production of NO, $IL-1{\beta}$, $TNF-{\alpha}$ and IL-6 at the concentration of 25, 50, 100 and $200{\mu}g/mL$ in the LPS-induced RAW 264.7 mouse macrophages cells with no changes in the cell viability of them. These results suggest that water extract of Violae Herba has anti-inflammatory effect related with its inhibition of proinflammatory cytokines such as $IL-1{\beta}$, $TNF-{\alpha}$ and IL-6 in the LPS-induced RAW 264.7 mouse macrophages cells. Further research is needed to develop therapeutic agents for inflammatory diseases using Violae Herba.

• Journal of Life Science
• /
• v.29 no.9
• /
• pp.977-985
• /
• 2019

Aster yomena (Kitam.) Honda is an edible vegetable and perennial herb belonging to the Asteraceae family, and has been used for a long time for the prevention and treatment of various diseases. Although leaf extracts of A. yomena are known to have antioxidant and anti-inflammatory effects, accurate efficacy assessments are still inadequate. In this study, we investigated whether the antioxidant efficacy of ethanol extract of A. yomena leaf (EEAY) is correlated with the anti-inflammatory effect in RAW 264.7 macrophages. The results showed that EEAY significantly inhibited the hydrogen peroxide ($H_2O_2$)-induced growth inhibition in RAW 264.7 cells, which was associated with increased expression of nuclear factor erythroid 2-related factor-2 (Nrf2) and heme oxygenase-1 (HO-1). EEAY pretreatment also effectively prevented $H_2O_2$-induced reactive oxygen species generation and apoptosis through inhibition of caspase-3 activation and poly (ADP-ribose) polymerase degradation. Additionally, EEAY significantly increased the expression and production of interleukin-10, a representative anti-inflammatory cytokine, which was associated with increased expression of toll-like receptor 4 and myeloid differentiation factor 88 at transcriptional and translational levels. Furthermore, the increased production of nitric oxide (NO) by lipopolysaccharide was markedly abolished under the condition of EEAY pretreatment, and the inhibitory effect of NO production by EEAY was further increased by hemin, an HO-1 inducer. Overall, our results suggest that EEAY is able to activate the Nrf2/HO-1 signaling pathway to protect RAW 264.7 macrophages from oxidative and inflammatory stress.

• Korean Journal of Food Science and Technology
• /
• v.49 no.1
• /
• pp.90-96
• /
• 2017

The aim of this study was to investigate the anti-inflammatory and ultraviolet (UV)-protective effect of Pleurotus eryngii extract (PEE) in activated RAW 264.7 cells and UV-induced mouse skin damage. The results showed that PEE strongly inhibited the production of inflammatory mediators such as nitric oxide, interleukin $(IL)-1{\beta}$, and IL-6 at high concentrations in LPS-stimulated RAW 264.7 macrophages. In addition, PEE treatment suppressed erythema, melanin index, and epidermal thickness to a greater degree than ascorbic acid (AA) treatment in UV-irradiated mice. Finally, PEE treatment inhibited the infiltration of mast cell to a similar degree of AA treatment. Therefore, these results indicate that PEE could improve inflammation and skin damage in immune cells and UV-irradiated mice. This study may provide positive insights into PEE as a functional food and cosmetic ingredient for treatment of inflammation and skin damage.

• Journal of the Korean Society of Food Science and Nutrition
• /
• v.43 no.10
• /
• pp.1527-1534
• /
• 2014

In this study, we investigated the anti-inflammatory effects of Lactobacillus rhamnosus fermented black garlic (FBG) in lipopolysaccharide (LPS)-induced RAW 264.7 macrophages. FBG did not show cytotoxicity in RAW 264.7 cells at concentrations less than $800{\mu}g/mL$, and cell viability increased with FBG concentration. Nitric oxide (NO) and prostaglandin $E_2$ ($PGE_2$) production as well as tumor necrosis factor-${\alpha}$ (TNF-${\alpha}$), interleukin-$1{\beta}$ (IL-$1{\beta}$) and IL-6 formation decreased in an FBG concentration-dependent manner, in LPS-induced RAW 264.7 cells. Furthermore, activation of LPS-inducible nitric synthase (iNOS), cyclooxygenase-2 (COX-2), nuclear factor kappa B (NF-${\kappa}B$), and inhibitory kappa B ($I{\kappa}B$) protein expression was effectively inhibited by FBG treatment in LPS-induced RAW 264.7 cells. In contrast, heme oxygenase-1 (HO-1) protein expression significantly increased. These results indicate that the anti-inflammatory activity of FBG was due to activation of NF-${\kappa}B$, inhibition of cytokine production, and expression of iNOS and COX-2. From these results, we expect that FBG could contribute to the prevention and improvement of inflammatory disease.

• Journal of Ginseng Research
• /
• v.39 no.2
• /
• pp.162-168
• /
• 2015

Background: Although the aerial parts of hydroponic Panax ginseng are reported to contain higher contents of total ginsenosides than those of roots, the isolation and identification of active metabolites from the aerial parts of hydroponic P. ginseng have not been carried out so far. Methods: The aerial parts of hydroponic P. ginseng were applied on repeated silica gel and octadecylsilane columns to yield four glycosyl glycerides (Compounds 1-4), which were identified based on nuclear magnetic resonance, infrared, fast atom bombardment mass spectrometry, and gas chromatography/mass spectrometry data. Compounds 1-4 were evaluated for inhibition activity on NO production in lipopolysaccharide (LPS)-stimulated RAW264.7 cells. Results and conclusion: The glycosyl glycerides were identified to be (2S)-1-O-7(Z),10(Z),13(Z)-hexadecatrienoyl-3-O-${\beta}$-$\small{D}$-galactopyranosyl-sn-glycerol (1), (2S)-1-O-linolenoyl-3-O-${\beta}$-$\small{D}$-galactopyranosyl-sn-glycerol (2), (2S)-1-O-linolenoyl-2-O-linolenoyl-3-O-${\beta}$-$\small{D}$-galactopyranosyl-sn-glycerol (3), and 2(S)-1-O-linoleoyl-2-O-linoleoyl-3-O-${\beta}$-$\small{D}$-galactopyranosyl-sn-glycerol (4). Compounds 1 and 2 showed moderate inhibition activity on NO production in LPS-stimulated RAW264.7 cells [half maximal inhibitory concentration ($IC_{50}$): $63.8{\pm}6.4{\mu}M$ and $59.4{\pm}6.8{\mu}M$, respectively] without cytotoxicity at concentrations < $100{\mu}M$, whereas Compounds 3 and 4 showed good inhibition effect ($IC_{50}$: $7.7{\pm}0.6{\mu}M$ and $8.0{\pm}0.9{\mu}M$, respectively) without cytotoxicity at concentrations < $20{\mu}M$. All isolated compounds showed reduced messenger RNA (mRNA) expression of interleukin-$1{\beta}$ (IL-$1{\beta}$), IL-6, and tumor necrosis factor-${\alpha}$ in LPS-induced macrophage cells with strong inhibition of mRNA activity observed for Compounds 3 and 4.

• Journal of the Korean Society of Food Science and Nutrition
• /
• v.46 no.11
• /
• pp.1271-1277
• /
• 2017

As Kamisipjeondaebotang (KSD) extract is an herbal ingredient, safety is very important due to possible cell poisoning or heavy metal toxicity to organs when administered to humans or animals. Accordingly, this study examined the antioxidant and anti-inflammatory effects of KSD extract to confirm its medicinal safety by using RAW 264.7 cells after heavy metal screening, functional index test of the liver and kidney, and cell survival rate test. Heavy metals were not found in KSD extracts or were less than standard amounts. Liver function indices such as aspartate aminotransferase and alanine aminotransferase revealed low values and kidney function indices such as creatinine and blood urea nitrogen were not significantly different from the normal group. This proved the safety to the human. RAW 264.7 cells showed no poisoning compared to the control group in terms of survival rate. Regarding the antioxidant effect of KSD extract, 2,2-diphenyl-1-picrylhydrazyl radical scavenging activity and 2,2'-azino-bis(3-ethylbenzothiazo-line-6-sulphonic acid) radical scavenging activity increased at concentrations over $10{\mu}g/mL$. The anti-inflammatory effect of KSD extract significantly decreased based on the amount of nitric oxide at concentrations of 10 and $100{\mu}g/mL$ compared to the control group. Expression of interleukin (IL)-$1{\beta}$ and IL-6 decreased in a concentration-dependent manner. There was no significant difference in tumor necrosis factor-${\alpha}$ level. Based on the results, KSD can be regarded as a safe antioxidant with anti-inflammatory effects for fracture treatment.

• The Korea Journal of Herbology
• /
• v.28 no.2
• /
• pp.67-73
• /
• 2013

Objective : Lithospermum Erythrorhizon (LE) has been used as an anti-bacterial and anti-inflammatory agent. However, it is unclear that LE aqueous extract could show the anti-inflammatory effects in RAW 264.7cells. The purpose of this study was to investigate the anti-inflammatory effect of aqueous extract from LE on lipopolysaccharide (LPS) - induced inflammatory response. Methods : To measure out the cytotoxicity of LE, we performed the MTT assay. To evaluate the anti-inflammatory effects of LE, we examined the inflammatory mediators such as nitric oxide (NO), prostaglandin E2 ($PGE_2$) and pro-inflammatory cytokines (tumor necrosis factor (TNF)-${\alpha}$, interleukin, (IL)-$1{\beta}$ and (IL)-6) on RAW 264.7 cells. We also examined molecular mechanisms such as mitogen-activated protein kinases (MAPKs) and nuclear factor-B (NF-${\kappa}B$) activation by western blot. Results : Aqueous Extract from LE itself did not have any cytotoxic effect in RAW 264.7 cells. Aqueous extract from LE inhibited LPS-induced productions of inflammatory mediators such as NO, $PGE_2$, and pro-inflammatory cytokines including TNF-${\alpha}$, IL-$1{\beta}$ and IL-6 in RAW 264.7cells. In addition, LE inhibited the phosphorylation of p38 kinases (p38), c-Jun $NH_2$-terminal kinase (JNK), and NF-${\kappa}B$ activation in RAW 264.7 cells. Conclusion : LE down-regulated LPS-induced production of inflammatory mediators through the inhibition of p38, JNK and NF-${\kappa}B$ activation. Taken together, these results could provide the evidence for the anti-inflammatory effects of LE. Therefore, LE may be a novel target in the management of inflammation and help to support a potential strategy for prevention and therapy of inflammatory diseases.