• Asian-Australasian Journal of Animal Sciences
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• v.31 no.1
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• pp.138-148
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• 2018

Objective: Fusarium mycotoxins deoxynivalenol (DON) and zearalenone (ZEN), common contaminants in the feed of farm animals, cause immune function impairment and organ inflammation. Consequently, the main objective of this study was to elucidate DON and ZEN effects on the mRNA expression of pro-inflammatory cytokines and other immune related genes in the kidneys of piglets. Methods: Fifteen 6-week-old piglets were randomly assigned to three dietary treatments for 4 weeks: control diet, and diets contaminated with either 8 mg DON/kg feed or 0.8 mg ZEN/kg feed. Kidney samples were collected after treatment, and RNA-seq was used to investigate the effects on immune-related genes and gene networks. Results: A total of 186 differentially expressed genes (DEGs) were screened (120 upregulated and 66 downregulated). Gene ontology analysis revealed that the immune response, and cellular and metabolic processes were significantly controlled by these DEGs. The inflammatory stimulation might be an effect of the following enriched Kyoto encyclopedia of genes and genomes pathway analysis found related to immune and disease responses: cytokine-cytokine receptor interaction, chemokine signaling pathway, toll-like receptor signaling pathway, systemic lupus erythematosus (SLE), tuberculosis, Epstein-Barr virus infection, and chemical carcinogenesis. The effects of DON and ZEN on genome-wide expression were assessed, and it was found that the DEGs associated with inflammatory cytokines (interleukin 10 receptor, beta, chemokine [C-X-C motif] ligand 9, CXCL10, chemokine [C-C motif] ligand 4), proliferation (insulin like growth factor binding protein 4, IgG heavy chain, receptor-type tyrosine-protein phosphatase C, cytochrome P450 1A1, ATP-binding cassette sub-family 8), and other immune response networks (lysozyme, complement component 4 binding protein alpha, oligoadenylate synthetase 2, signaling lymphocytic activation molecule-9, ${\alpha}$-aminoadipic semialdehyde dehydrogenase, Ig lambda chain c region, pyruvate dehydrogenase kinase, isozyme 4, carboxylesterase 1), were suppressed by DON and ZEN. Conclusion: In summary, our results indicate that high concentrations of DON and ZEN suppress the inflammatory response in kidneys, leading to potential effects on immune homeostasis.

• The korean journal of orthodontics
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• v.30 no.6 s.83
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• pp.713-721
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• 2000

Bone cells produce multiple growth factors and cytokines that have effects on bone metabolism and can be incorporated into the bone matrix. The present study was designed to extend these observations by examining the interactions between transforming growth factor-$\beta$(TGF-$\beta$) or interleukin-$1\beta$(rhIL-$1\beta$) and bone cells in a rat long bone culture model. IL-$1\beta$ regulates several activities of the osteoblast cells derived from rat long bone explants in vitro. IL-$1\beta$ stimulated cellular proliferation as well as the synthesis of prostaglandin $E_2$ and Plasminogen activator activity in the cultured cells in a dose-dependent manner. TGF-$\beta$ is present in the bone matrix and potentially released during bone resorption. TGF-$\beta$ reduced basal bone resorption and inhibited vitamin $D_3[1,25(OH)_2D_3]$-induced bone resorption in rat long bone cells. These results support the role of IL-$1\beta$ in the pathological modulation of bone cell metabolism, with regard to implication in the Pathogenesis of osteoporosis by IL-$1\beta$, and that TGF-$\beta$ positively inhibits the bone resorption.

• THE JOURNAL OF KOREAN ORIENTAL ONCOLOGY
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• v.1 no.1
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• pp.141-165
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• 1995

In order to investigate the effects of Banhabaekchulcheonmatang and Banhabaekchulcheonmatanggamibang on antitumor effects after Sarcoma-180 cells transplantation into the peritoneal cavity or left groin in mice, and immune responses in mice induced by methotrexate, the extracts of its herbal medicines were orally administered for 14 or 21 days. Experimental studies were performed for measurance of mean survival days, tumor and body weight for antitumor effects, and delayed type hypersensitivity, hemagglutinin titer, hemolysin titer, rosette forming cells, natural killer cell activity and phagocytic activity for immune responses in ICR mice. Following results were obtained : 1. Mean survival time in Banhabaekchulcheonmatang and Banhabaekchulcheonmatanggamibang-treated group was significantly prolonged, as compared with the control group(P<0.010, P<0.005). 2. Tumor weight in Banhabaekchulcheonmatang and Banhabaekchulcheonmatanggamibang-treated group was significantly depressed, as compared with the control group(P<0.050, P<0.050). 3. Body weight in Banhabaekchulcheonmatang-treated group was significantly increased (P<0.050), but in Banhabackchulcheonmatanggamibang-treated group was slightly increased with no effectivenes, as compared with the control group. 4. Delayed type hypersensitivity in Banhabaekchulcheonmatang and Banhabaekchulcheonmatanggamibang-treated group was significantly increased, as compared with the control group(P<0.010, P<0.050). 5. Hemagglutinin titer in Banhabaekchulcheonmatang and Banhabaekchulcheonmatanggamibang-treated group was significantly increased, as compared with the control group(P<0.050, P<0.050). 6. Hemolysin titer in Banhabaekchulcheonmatanggamibang-treated group was significantly increased (P<0.050), but in Banhabaekchulcheonmatanggamibang-treated group was slightly increased with no effectiveness, as compared with the control group. 7. Rosette forming cells in Banhabaekchulcheonmatang and Banhabaekchulcheonmatanggamibang-treated group was slightly increased with no effectiveness, as compared with the control group. 8. Natural Killer cell activity in Banhabaekchulcheonmatang and Banhabaekchulcheonmatanggamibang-treated group was slightly increased with no effectiveness, as compared with the control group. 9. Phagocytic activity in Banhabaekchulcheonmatanggamibang-treated group group was significantly increased (P<0.050), but in Banhabaekchulcheonmatanggamibang-treated group was increased with no effectiveness, as compared with the control group. According to the above results, it could be suggested that Banhabaekchulcheonmatang and Banhabaekchulcheonmatanggamibang have prominent antitumor effects, and enhance both cellular and humoral immunity.

• Journal of Distribution Science
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• v.10 no.11
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• pp.89-99
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• 2012

Purpose - Mobile devices, especially mobile terminals capable of telecommunication and wireless connectivity, are leading the advancements in consumer electronics. Digital convergence drives the functions of various devices, such as cellular phones, MP3 players, personal digital assistants, and gaming, into a single device. This trend would continue and applications such as digital audio and video streaming (including personalized content delivery mechanisms) would soon be on a handheld device. As customers want mobile convergence devices, manufacturers are driving new initiatives in the emerging mobile device market. Given the roles played by device design and service content in user satisfaction of a mobile convergence device, this study focuses on identifying and measuring the constructs for the process by which user satisfaction is achieved. This study synthesizes the expectation-disconfirmation paradigm with empirical theories in user satisfaction. Device and service levels are separated, and nine key constructs for user satisfaction of mobile convergence devices are proposed. Insight into this process could help web-based businesses to improve user satisfaction, thus enhancing the effectiveness of e-commerce for sellers and buyers. Research design, data, methodology - This study draws on three users of mobile convergence devices as examples. To test there search model and hypotheses, survey questionnaires were sent to 607 mobile device users. Mobile device users were initially identified from several members, and subjects were randomly drawn. Data from 577 survey responses were finally analyzed. The unit of measurement and analysis in this research study is at a personal level. Results - The measurements for the constructs were developed and tested in a two-phase study. In the first phase, the device and service dimensions were identified, and instruments for measuring them were developed and tested. In the second phase, using the salient dimensions of the device and service as the formulating first-order factors, instruments were developed and empirically tested to measure satisfaction of the device and service. In measuring satisfaction of mobile convergence devices, the critical tasks are to identify the key constructs of such user satisfaction and to develop validated instruments to measure them. Hence, the results of this study have immediate implications for businesses and for research in user satisfaction of mobile convergence devices. Conclusions - This study provides reliable instruments for operationalizing key constructs in the analysis of user satisfaction of mobile convergence devices within the expectation-disconfirmation paradigm. Hence, convergence device makers will be able to examine whether their websites meet their customers' expectations by examining the device aspect of the mobile convergence device customers, and the service aspect expectations and disconfirmation. Moreover, the introduction of expectation and disconfirmation constructs brings the marketing aspect of convergence devices into focus for such retailers, an aspect crucial to the effective design of websites for online businesses. In addition,this study provides the metrics required to initiate future studies on user satisfaction of mobile convergence devices.

• Journal of Life Science
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• v.26 no.12
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• pp.1392-1399
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• 2016

Jaspine B is an anhydrophytosphingosine that is isolated from a marine sponge. Because of its structural similarity to sphingosine, it shows anti-cancer effects in human carcinomas. Therefore, this study aims to investigate its anti-proliferative effect on various cancer cells and to correlate its association with the intracellular accumulation of Jaspine B in relevant cancer cells. The anti-proliferative effect of Jaspine B in various cancer cells was determined by a cell viability test, and the intracellular concentration of Jaspine B in relevant cancer cells was determined using mass spectrometry coupled with liquid chromatography. The correlation coefficient and p value between the cytotoxicity and the cell accumulation of Jaspine B were determined using SPSS 16.1. The cytotoxicity of Jaspine B varied depending on the type of cancer cell when compared the $EC_{50}$ values of Jaspine B. Breast and melanoma cancer cells were susceptible to Jaspine B, whereas renal carcinoma cells were resistant. The intracellular concentrations of Jaspine B had a reciprocal correlation with the $EC_{50}$ values in the same cells (r = 0.838). The results suggested that the anti-proliferative effect of Jaspine B was associated with the cellular accumulation of this compound. However, Jaspine B was not a substrate for P-glycoprotein and breast cancer resistance protein, as major efflux pumps caused multidrug resistance. The maintenance of a high intracellular concentration is crucial for the cytotoxic effect of Jaspine B; however, efflux pumps may not be a controlling factor for Jaspine B-related resistance in cancer cells.

• Korean Journal of Clinical Laboratory Science
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• v.49 no.4
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• pp.460-469
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• 2017

Heat shock proteins (HSPs) are induced as a self-defense mechanism of cells when exposed to various external stresses, such as high fever, infection, free radicals, and heavy metals. They affect the prognosis in the process of tumor formation. HSP is classified into four families: HSP27, HSP60, HSP90, and HSP100, depending on molecular weight. Heat shock protein 90 (HSP90), a molecular chaperone, plays an important role in the cellular protection against various stressful stimuli and in the regulation of cell cycle progression and apoptosis. In the present study, we assessed the differential expression of HSP90 family proteins in non-small cell lung cancer (NSCLC), and the correlation of their expression levels with clinicopathologic factors and patient survival rates. The result of this study can be summarized as follows; $HSP90{\alpha}$ showed higher expression in patients with no lymphovascular invasion (p=0.014). $HSP90{\beta}$ showed a higher expression of squamous cell carcinoma (p=0.003), and an over expression of glucose-related protein (GRP94) was significantly associated with poor differentiation (p=0.048). However, none of the HSP90 proteins showed a significant association with the survival status in patients with NSCLC. This study also indicates that $HSP90{\alpha}$ might contribute more to the carcinogenesis of NSCLC than $HSP90{\beta}$, and GRP94 and isoform selectivity should be considered when HSP90 inhibitors are studied or utilized in the treatment of NSCLC.

• Journal of Life Science
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• v.25 no.5
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• pp.585-593
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• 2015

Stress fiber (SF) alteration is mediated by cellular receptors, which, upon interaction with the extracellular counterpart, signal to the actin cytoskeleton for remodeling. This association is mediated by a variety of scaffold and signaling factors, which control the mechanical and signaling activities of the interaction site. The heterotrimeric transmembrane lymphotoxin α1β2 (LTα1β2), a member of the tumor necrosis factor (TNF) family of cytokines, including soluble homotrimeric lymphotoxin (LT α), plays an important role in lymphoid tissue architecture. Ligation between LTα1β2 and the lymphotoxin β receptor (LTβR) activates signal-cascade in fibroblastic reticular cells (FRCs). We found LTβR stimulation using an agonistic anti-LTβR antibody alone or combined with LTα or TNFα induced changes in the actin and plasticity of cells. To clarify the involvement of myosin underlying the alteration, we analyzed the effect of myosin light chain kinase (MLCK) with an MLCK inhibitor (ML7), the phosphorylation level of myosin light chains (MLC), and the level of phospho-myosin phosphatase target subunit 1 (MYPT1) after treatment with an agonistic anti-LTβR antibody for cytoskeleton reorganization in FRCs. The inhibition of MLCK activity induced changes in the actin cytoskeleton organization and cell morphology in FRC. In addition, we showed the phosphorylation of MLC and MYPT1 was reduced by LTβR stimulation in cells. A DNA chip revealed the LTβR stimulation of FRC down-regulated transcripts of myosin and actin components. Collectively, these results suggest LTβR stimulation is linked to myosin regarding SF alteration in FRC.

• The Korea Journal of Herbology
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• v.26 no.4
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• pp.169-180
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• 2011

Objectives : This study aimed at evaluation of the effects of Rhodiola rosea on brain edema and expressions of matrix metalloproteinases (MMPs) related to blood-brain barrier (BBB) disruption. Methods : Brain edema following intracerebral hemorrhage (ICH) was induced by the stereotaxic intrastriatal injection of bacterial collagenase type VII in rats (Sprague-Dawley). Then ethanol extract of Rhodiola rosea was treated once a day for 3 days. Brain edema % and water contents, and BBB leakage were examined. Immunohistochemistry was processed for MMP-9, MMP-12, and iNOS expressions in the brain sections and each immuno-labeled cells were analyzed with image analysis software. Results : 1. Ethanol extract of Rhodiola rosea reduced brain edema following ICH in rats significantly. 2. Ethanol extract of Rhodiola rosea reduced excessive brain tissue water contents following ICH in rats significantly. 3. Ethanol extract of Rhodiola rosea reduced BBB leakage in the cerebral cortex following ICH in rats. 4. Ethanol extract of Rhodiola rosea reduced cellular edema of neurons in peri-hematoma and the cerebral cortex following ICH in rats significantly. 5. Ethanol extract of Rhodiola rosea reduced MMP-9 positive cells in the cerebral cortex following ICH in rats significantly. 6. Ethanol extract of Rhodiola rosea reduced MMP-12 positive vessels in the cerebral cortex following ICH in rats significantly. 7. Ethanol extract of Rhodiola rosea reduced iNOS positive cells in the cerebral cortex and external capsule following ICH in rats significantly. Conclusions : These results suggest that Rhodiola rosea reveals protective effect against brain edema and cytotoxic edema of neurons by means of down-regulation of MMPs and iNOS expressions, and inhibition of BBB leakage.

• Journal of Life Science
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• v.23 no.10
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• pp.1183-1191
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• 2013

Human apurinic/apyrimidinic endonuclease (APEX-1) is a multifunctional protein that is capable of repairing abasic sites and single-strand breaks in damaged DNA. In addition, it serves as a redox-modifying factor for a number of transcription factors. Identifying the transcriptional targets of APEX-1 is essential for understanding how it affects various cellular outcomes. Expression array analysis was used to identify glial cell-derived neurotropic factor receptor ${\alpha}1$ ($GFR{\alpha}1$), which is an encoding receptor for the glial cell-derived neurotropic factor (GDNF) family, the expression of which is induced by APEX-1. A target of GDNF/$GFR{\alpha}$ signaling, c-Src (Tyr418) was strongly phosphorylated by GNDF in the APEX-1 expressing cells. Moreover, GDNF initiated cell proliferation, measured by counting the number of cells, in the APEX-1 expressing cells. Importantly, the down-regulation of APEX-1 by siRNA caused a marked reduction in the $GFR{\alpha}1$ expression level, and it reduced the ability of GDNF to phosphorylate c-Src (Tyr418) and stimulate cell proliferation. These results demonstrate an association between APEX-1 and GDNF/$GFR{\alpha}$ signaling and suggest a potential molecular mechanism for the involvement of APEX-1 in cell survival and proliferation.

• The Journal of Pediatrics of Korean Medicine
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• v.28 no.2
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• pp.23-39
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• 2014

Objectives PRAL (Prunus armniaca Linne Var) is a herbal formula in Oriental Medicine, known for its anti-inflammatory and anti-allergenic properties. However, its mechanism of action and the cellular targets have not yet been found enough. The purpose of this study is to investigate the effects of PRAL on Th2 cytokines expression in MC/9 mast cells. Methods The effect of PRAL was analyzed by ELISA, Real-time PCR, Western blot in MC/9 mast cells. mRNA levels of GM-CSF, IL-4, IL-5, IL-6, IL-13, TNF-${\alpha}$ were analyzed with Real-time PCR. Levels of IL-13, MIP-$1{\alpha}$ were measured using enzyme-linked immunosorbent assays (ELISA). NFAT, AP-1 and NF-${\kappa}B$ p65 were examined by Western blot analysis. Results PRAL inhibited GM-CSF, IL-4, IL-5, IL-6, IL-13, TNF-${\alpha}$ mRNA expression in a dose dependent manner. GM-CSF, IL-4, IL-5 mRNA expression were inhibited significantly in comparison to DNP-IgE control group at concentration of 100 ${\mu}g/ml$ and IL-6, IL-13, TNF-${\alpha}$ mRNA expression were inhibited at concentration of 50 ${\mu}g/ml$, 100 ${\mu}g/ml$. PRAL also inhibited the IL-13, MIP-$1{\alpha}$ production significantly in comparison to DNP-IgE control group in a dose dependent manner. IL-13 production was inhibited at a concentration of 200 ${\mu}g/ml$, 400 ${\mu}g/ml$ and MIP-$1{\alpha}$ was inhibited at a concentration of 100 ${\mu}g/ml$, 200 ${\mu}g/ml$, 400 ${\mu}g/ml$. Western blot analysis of transcription factors involving Th2 cytokines expression revealed prominent decrease of the mast cell specific transcription factors including NFAT-1, c-Jun as well as NF-${\kappa}B$ p65 but not NFAT-2 and c-Fos. Conclusion These results indicate that PRAL has the effect of suppressing Th2 cytokines production in the MC/9 mast cells. These data represent that PRAL potentiates therapeutic activities to the allergic disease by regulating Th2 cytokines in the MC/9 mast cells.