[ ${\beta}ig-h3$ ] is a secretory protein that is induced by $TGF-{\beta}$ and implicated in various disease conditions including fibrosis. We have previously reported that ${\beta}ig-h3$ expression is implicated in astrocyte response to brain injury. In this study, we further investigated potential roles of ${\beta}ig-h3$ protein in the injured central nervous system (CNS). We specifically assessed whether the treatment of microglial cells with ${\beta}ig-h3$ can regulate microglial activity. Microglial cells are the prime effector cells in CNS immune and inflammatory responses. When activated, they produce a number of inflammatory mediators, which can promote neuronal injury. We prepared conditioned medium from the stable CHO cell line transfected with human ${\beta}ig-h3$ cDNA. We then examined the effects of the conditioned medium on the LPS- or $IFN-{\gamma}-mediated$ induction of proinflammatory molecules in microglial cells. Preincubation with the conditioned medium significantly attenuated LPS-mediated upregulation of $TNF-{\alpha},\;IL-1{\beta}$, iNOS and COX-2 mRNA expression in BV2 murine microglial cells. It also reduced $IFN-{\gamma}-mediated$ upregulation of $TNF-{\alpha}$ and COX-2 mRNA expression but not iNOS mRNA expression. Assays of nitric oxide release correlated with the mRNA data, which showed selective inhibition of LPS-mediated nitric oxide production. Although the regulatory mechanisms need to be further investigated, these results suggest that astrocyte-derived ${\beta}ig-h3$ may contribute to protection of the CNS from immune-mediated damage via controlling microglial inflammatory responses.
Objectives : Parkinson's disease, a progressive neurodegenerative disease, is caused by the loss of dopaminergic neurons in the substantia nigra. There is no clear treatment or remedy for Parkinson's disease; therefore, the development of novel therapies related to anti-inflammatory and antioxidant effects is required. This study was performed to evaluate the neuroprotective effect of water extracts from Cervi Cornu (CC) in dopaminergic cells. Methods : We studied effects of CC on apoptosis, cell death and inflammation in SH-SY5Y neuroblastoma cells treated by methylpyridinium ion (MPP+). SH-SY5Y cell line was treated with CC for 24 hours and then 500 μM MPP+ for 18 hours. Results : Cervi Cornu treatment inhibited the decrease in tyrosine hydroxylase (TH) expression and decreased the activation of inflammatory factors mitochondrial cytochrome C oxidase (COX2) and inducible NO synthase (iNOS) against MPP+ neurotoxicity. Apoptosis factors BCL2 associated X, apoptosis regulator (BAX) levels were decreased and B-Cell CLL/Lymphoma 2 (BCL2) levels were increased. Conclusions : These results suggest that CC treatment had neuroprotective effects in the SH-SY5Y neuroblastoma cells against toxicity induced by MPP+. The results suggest new possibilities of CC for the treatment of Parkinson's disease.
Albizia julibrissin (AJ) has been used widely as a traditional medicine. In macrophages nitric oxide (NO) is released as an inflammatory mediator and has been proposed to be an important modulator of many pathophysiological conditions including inflammation and carcinogenesis. In this study we have examined the NO inhibition effect of 85% methanol extracts of AJ in mouse macrophage. Lipopolysaccharide (LPS) has been reported to induce production of NO. Extracts of AJ (1, 10, $100{\mu}g/ml$) suppressed nitric oxide production in LPS-stimulated ($100{\mu}g/ml$) mouse (C57BL/6) macrophages and analyzed by ELISA. In addition, it also attenuated the expression of inflammatory products like Interleukin-6 (IL-6), cyclooxygenase-2 (COX-2), and inducible NOS (iNOS) as assessed by immunoblotting with specific antibodies. These results suggest that 85% methanol extracts of AJ would be useful in inflammatory diseases.
BACKGROUND/OBJECTIVES: Citrus and its peels have been used in Asian folk medicine due to abundant flavonoids and usage of citrus peels, which are byproducts from juice and/or jam processing, may be a good strategy. Therefore, the aim of this study was to examine antioxidant and anti-inflammatory effects of bioconversion of Jeju Hallabong tangor (Citrus kiyomi ${\times}$ ponkan; CKP) peels with cytolase (CKP-C) in RAW 264.7 cells. MATERIALS/METHODS: Glycosides of CKP were converted into aglycosides with cytolase treatment. RAW 264.7 cells were pre-treated with 0, 100, or $200{\mu}g/ml$ of citrus peel extracts for 4 h, followed by stimulation with $1{\mu}g/ml$ lipopolysaccharide (LPS) for 8 h. Cell viability, DPPH radical scavenging activity, nitric oxide (NO), and prostagladin $E_2$ ($PGE_2$) production were examined. Real time-PCR and western immunoblotting assay were performed for detection of mRNA and/or protein expression of pro-inflammatory mediators and cytokines, respectively. RESULTS: HPLC analysis showed that treatment of CKP with cytolase resulted in decreased flavanone rutinoside forms (narirutin and hesperidin) and increased flavanone aglycoside forms (naringenin and hesperetin). DPPH scavenging activities were observed in a dose-dependent manner for all of the citrus peel extracts and CKP-C was more potent than intact CKP. All of the citrus peel extracts decreased NO production by inducible nitric oxide synthase (iNOS) activity and $PGE_2$ production by COX-2. Higher dose of CKP and all CKP-C groups significantly decreased mRNA and protein expression of LPS-stimulated iNOS. Only $200{\mu}g/ml$ of CKP-C markedly decreased mRNA and protein expression of cyclooxygenase-2 in LPS-stimulated RAW 264.7 cells. Both 100 and $200{\mu}g/ml$ of CKP-C notably inhibited mRNA levels of $interleukin-1{\beta}$ ($IL-1{\beta}$) and IL-6, whereas $200{\mu}g/ml$ CKP-C significantly inhibited mRNA levels of $TNF-{\alpha}$. CONCLUSIONS: This result suggests that bioconversion of citrus peels with cytolase may enrich aglycoside flavanones of citrus peels and provide more potent functional food materials for prevention of chronic diseases attributable to oxidation and inflammation by increasing radical scavenging activity and suppressing pro-inflammatory mediators and cytokines.
Journal of the Korean Applied Science and Technology
/
v.35
no.2
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pp.325-335
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2018
This study is for checking the possibility of ginseng complex as cosmetic materials. For this we carried out biological active evaluation about anti-inflammatory and whitening effects by using ethanol extract of ginseng complex. Samples were prepared by extracting 70% ethanol from each of Panax ginseng C. A. Meyer (A), Phellinus linteus (B) and Pinus rigida Mill. (C), and mixing them at a ratio of (A) 1 : (B) 1 : (C) 0.5. In order to evaluate the anti-inflammatory effects of the samples in macrophages (RAW 264.7 cells), MTT assay was used to evaluate the toxicity of the samples and the inhibitory activity of nitric oxide production and the expression levels of inflammation-related proteins and genes. To evaluate the whitening effect of the samples in melanoma (B16F10 cell), MTT assay was used to evaluate the toxicity of the sample, cellular tyrosinase inhibition, and melanin contents. The inhibitory activity of nitric oxide in the LPS-induced RAW 264.7 cells was 71.2% at $25{\mu}g/mL$ concentration and western blot analysis showed that the expression of iNOS and COX-2 protein decreased in a concentration-dependent manner. Inhibition of tyrosinase activity showed 36.8% inhibition at $50{\mu}g/mL$ concentration of ginseng complex and inhibition of melanin contents showed 47.8% inhibition at $50{\mu}g/mL$ concentration. From the results of the experiment, it was confirmed that the ginseng complex had excellent anti-inflammatory and whitening effect and could be used as a safe natural cosmetic material in the future.
Introduction: Seaweed is a sustainable and underexplored source of bioactive compounds with potent anti-inflammatory activities. However, studies on the interaction between seaweed and genes on inflammation are limited. Purpose: We aimed to evaluate the relationships between seaweed consumption and the polygenic risk scores (PRS) and their interactions with high-sensitivity C-reactive protein (hs-CRP) levels. Methods: Information on seaweed consumption was collected using a food frequency questionnaire, which included laver, kelp, and sea mustard among the items consumed. A total of 31 hs-CRP-related single nucleotide polymorphisms (SNPs) were selected using genome-wide association studies and clumping analysis, and the individual PRS were calculated by weighting the effect size of each allele in the selected SNPs of 39,369 middle-aged (≥40 years) Koreans using the Korean Genome and Epidemiology Study (KoGES)-Health Examinees (HEXA) cohort data. To investigate the interaction between seaweed intake and the PRS on hs-CRP levels >1 mg/L, hazard ratios (HRs) and 95% confidence intervals (CIs) were assessed using multivariable Cox proportional hazards models. Results: During a mean follow-up period of 4.8 years, we recorded 436 patients with elevated hs-CRP levels. Women in the highest tertile of the PRS with the lowest quartile of seaweed intake had an increased incidence of elevated hs-CRP levels compared with women in the lowest tertile of the PRS with the lowest seaweed intake quartile (HR 2.34, 95% CI 1.23-4.45). No significant association was observed among the men. Conclusion: In conclusion, we identified a new interaction between the PRS, seaweed intake, and inflammation in Korean women, and this study suggests that the interaction between the identification of genetic predisposition and dietary seaweed intake may have an impact on determining the risk of developing hyperinflammation in the future.
Kwon, Myeong Sook;Mun, Ok-Ju;Bae, Min Joo;Lee, Seul-Gi;Kim, Mihyang;Lee, Sang-Hyeon;Yu, Ki Hwan;Kim, Yuck Yong;Kong, Chang-Suk
Journal of the Korean Society of Food Science and Nutrition
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v.44
no.10
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pp.1450-1457
/
2015
The anti-inflammatory effect of ethanol extracts from Hizikia fusiformis fermented with and without lactic acid bacteria was compared in lipopolysaccharide (LPS)-stimulated RAW 264.7 mouse macrophages. The fermentation was done using Weissella sp. SH-1 and Lactobacillus casei in a mixture of glucose and lactate source at $30^{\circ}C$ for 30 days. As a result, we confirmed that the fermentation of H. fusiformis with lactic acid bacteria inhibited LPS-stimulated nitric oxide (NO) production and the expression of inducible nitric oxide synthase (iNOS), cyclooxygenase (COX)-2, interleukin (IL)-6, tumor necrosis factor ${\alpha}$, and IL-$1{\beta}$ as important inflammatory factors. During a comparison analysis, we found that L. casei fermented groups significantly suppressed NO production by regulating iNOS and COX-2 expression. Also, the effective suppression of pro-inflammatory cytokine and LPS-induced activation of mitogen- activated protein kinase indicated that the fermentation using Weissella sp. SH-1 and L. casei may provide an increment towards the extraction of active components, which are effective anti-inflammatory agents.
The seeds of Raphanus sativus L. (RSL) and Phaseolus calcaratus Roxburgh (PHCR), the root of Scutellaria baicalensis (SB), and the flower of Lonicera japonica (LJ) have been traditionally used as herbal medicines for anti-inflammation. Unlike the SB and LJ, little information is available for the scientific bases that show the anti-inflammatory mechanisms of RSL and PHCR. In this study, we prepared boiled water extracts from the medicines and determined their potentials in inhibiting nitric oxide (NO) production, cyclooxygenase-2 (COX-2) expression, and tumor necrosis factor (TNF)-$\alpha$ and interleukin (IL)-6 secretion in lipopolysaccharide (LPS)-stimulated RAW 264.7 cells. The effects of the medicines on serum IgE levels in ovalbumin (OVA)-administrated mice were also studied. The medicines inhibited production of TNF-$\alpha$ and IL-6, and COX-2 expression in LPSstimulated macrophages. Especially, PHCR water extract showed more potent inhibition on TNF-$\alpha$ production than SB and LJ extracts, but RSL extract did not exert these effects. Similar to the cases of SB and LJ, PHCR extract prevented the phosphorylation of $I{\kappa}B{\alpha}$ and c-Jun, and the activation of NF-${\kappa}B$-DNA binding. Further, oral supplementation of PHCR extract attenuated significantly serum levels of total and OVA-specific IgE in OVAtreated animals. These results suggest a possibility that PHCR water extract can be used for the treatment of inflammatory and allergic diseases.
Objectives: This study was intended to clarify how Jakyakkamchobuja-tang (hereinafter referred to JKBT) affects mice of C57BL/10 whose osteoarthritis was induced by papain. Methods: Osteoarthritis was induced in mice by injecting papain in the knee joint. Mice were divided into 4 groups (n=6). The normal group were not treated at all whereas the control group (OAC-control) were induced for osteoarthritis by papain and oral medicated with 200 ul of physiological saline per day. The positive comparison group (OAC-$Joins^{(R)}$) were injected with papain and after 7 days, 100 mg/kg of $Joins^{(R)}$ were medicated with 200 ul of physiological saline mixed. The experimental group (OAC-JKBT) were injected with papain and after 7 days were medicated with 400 mg/kg of JKBT mixed with 200 ul of physiological saline. OAC-$Joins^{(R)}$ and OAC-JKBT were oral medicated for each substance for a total of 4 weeks, once per day. After experiments (from 1 week after injection of papain to 4 weeks elapsed), the function of liver and kidney, inflammation cytokine values within serum, degree of revelation for inflammation cytokine genes, immune cells within blood, metabolism of arachidonic acid and amount of cartilage were measured and histopathological variations for knee joint structures were observed. Results: Functions of liver and kidney were not affected. IL-$1{\beta}$ (interleukin-$1{\beta}$), MCP-1 (monocyte chemoattractant protein-1) and TNF-${\alpha}$ (tumor necrosis factor-${\alpha}$) were significantly reduced and IL-6 (interleukin-6) was also reduced but not significantly. After analyzing inflammation cytokine in joints with mRNA (messenger ribonucleic acid), revelation of IL-6, TNF-${\alpha}$, COX-2 (cyclooxygenase-2) and iNOS-II (inducible nitric oxide synthase-II) were all significantly reduced. Revelation of IL-$1{\beta}$ gene was also reduced but not significantly. Neutrophil for WBC (white blood cell) within serum was significantly reduced; monocyte was also reduced but not significantly. PGE2 (prostaglandin E2), TXB2 (thromboxane B2) were significantly reduced and LTB4 (leukotriene B4) was also reduced but not significantly. Destruction of cartilage on micro CT (computed tomography)-arthrography was reduced but had no significant differences. In terms of histopathology, infiltration of inflammation, proliferation of synovial membrane, subsidence of cartilage and bone due to penetration of excessive formation of synovial cell and destruction of cartilage were small (H&E (hematoxylin and eosin), safranine O staining). Conclusions: Based on these results, Jakyakkamchobuja-tang (JKBT) is believed to be useful for suppressing the progress of osteoarthritis and its treatments because of its anti-inflammatory effects and alleviation of pain with histopathological effective efficacy.
Ji-Hye Hong;Eun-Seo Jang;Myung-Chul Gil;Gye Won Lee;Young Ho Cho
Journal of Life Science
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v.33
no.6
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pp.471-480
/
2023
This study was designed to evaluate the anti-inflammatory effects of Rumohra adiantiformis extracts fermented with Bovista plumbea mycelium (B-RAE) in LPS-stimulated RAW 264.7 cells. The total polyphenol and total flavonoid content of B-RAE were 379.26±7.77 mg/g and 50.85±3.08 mg/g, respectively. The results of measuring the antioxidant activity of B-RAE showed that it scavenges 2, 2-diphenyl-1-picrylhydrazyl (DPPH), 2, 2'-azino-bis-3-ethylbenzothiazoline-6-sulfonic acid (ABTS), and superoxide anion radical in a dose-dependent manner. B-RAE inhibited nitric oxide (NO) production in a dose-dependent manner without affecting cell viability. The gene expression of pro-inflammatory cytokines such as tumor necrosis factor-α (TNF-α), interleukin-lβ (IL-1β), and IL-6 was measured using real time quantitative reverse transcription PCR (qRT-PCR). We found that, compared to the LPS-treated group, B-RAE significantly reduced the mRNA levels of the pro-inflammatory cytokines in a concentration-dependent manner. The expression of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2), the phosphorylation of transcription factors such as nuclear factor-κB (NF-κB), and the mitogen-activated protein kinase (MAPK) signaling pathway proteins were assessed using Western blot analysis. We found that B-RAE significantly suppressed the expression of iNOS and COX-2, but their expression was increased by LPS treatment. In addition, the phosphorylation of NF-κB and IκB, which was increased by LPS treatment, was reduced with B-RAE treatment. The effect of B-RAE on the phosphorylation of the MAPK signaling pathway proteins was measured, and the phosphorylation of extracellular signal-regulated kinase (ERK) and the p38 MAPK proteins decreased in a dose-dependent manner, while the phosphorylation of c-Jun N-terminal kinase (JNK) increased. These anti-inflammatory effects of B-RAE may thus have been achieved through the high antioxidant activity, the inhibition of NO production through the suppression of iNOS and COX-2 expression, the inhibition of the NF-κB pathway, and the suppression of pro-inflammatory cytokine expression.
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