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      • The Different Expression of Gene Profiles on Hepatocellular Carcinoma Cells with Different Intracellular Hepatitis C Viral Load

        ( Chia-yen Dai ),( Shu-chi Wang ),( Meng-hsuan Hsieh ),( Cheng-fu Yang ),( Ching-i Huang ),( Chung-feng Huang ),( Ming-lun Yeh ),( Jee-fu Huang ),( Wang-long Chung ),( Ming-lung Yu ) 대한간학회 2017 춘·추계 학술대회 (KASL) Vol.2017 No.1

        Aims: The different hepatitis C virus (HCV) replication has been reported among individual hepatocytes in chronic HCV infection by identifying hepatocytes with different HCV RNA levels. We have previously established a fluorescence-activated cell sorting (FACS) protocol to study the effects of different intracellular viral loads in HCV-infected cells. The present study aimed to further study the gene expression on different hepatocellular carcinoma (HCC) cells with different HCV viral load. Methods: The JFH1-EYFP viral florescence intensity was used to sort the high and low viral load cells after 5 days infection in vitro which has been shown in our previous study that infected cells efficiently and accurately discriminated between high- and low-viral load cell populations. The next generation sequence-RNA sequence was used to clarify the mRNA and miRNA gene network between HCV-high and HCV-low infected cells of the HCC cell line. Venn diagram summarizing the probe sets that were differentially expressingbetween the Huh7.5.1 versus each differential viral load cell population and miRDB and miRTar databases were used to predict HVL and LVL/S2 unique miRNA target genes. Results: By analyzing the NGS dataset and miRNA microarray dataset, of the significant transcripts, three miRNA were unique for the LVL/S2 cells and nine miRNA unique for the HVL. Twenty-three miRNA were common for all 3 viral load groups. We verified them by q-PCR and data confirmed the array data expression level. We found that high viral loads were associated with cell inflammation- and cell death-associated pathway; and the low viral loads were associated many stress response- and cell adhesion molecular (CAMs)-related genes. Conclusions: With the established cell sorting protocol, we have demonstrated that different gene network between HCV-high and HCV-low infected cells in JFH1-EYFP infectious cells exists. Our results may provide a boarder gene regulation map between high and low viral load cell populations.

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        Globalization, Real Output and Multiple Structural Breaks

        CHUN-PING CHANG,CHIEN-CHIANG LEE,MENG-CHI HSIEH 연세대학교 동서문제연구원 2011 Global economic review Vol.40 No.4

        This paper adopts an advanced panel cointegration method which incorporates multiple structural breaks to examine the long-run relationship between real output (RGDP) and the Konjunkturforschungsstelle (KOF) index of globalization (overall and its three main subindices), employing annual data of G7 countries from 1970 to 2006. Our empirical findings provide strong evidence that overall globalization and its social dimension are cointegrated with RGDP, and most of the structural break points are discovered during the period of the oil crisis (the mid-1970s) and the process of European Union integration. In addition, in evaluating whether or not the structural breaks affect the RGDP through globalization, we discover that both the overall globalization index and the social globalization index have a directly positive impact on RGDP but indirectly exhibit negative impacts on real output via the channel of social globalization.

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        In vitro intracellular studies of pH and thermo-triggered doxorubicin conjugated magnetic SBA-15 mesoporous nanocarriers for anticancer activity against hepatocellular carcinoma

        Ndumiso Vukile Mdlovu,KUEN-SONG LIN,Meng-Tzu Weng,Chi-Cheng Hsieh,You-Sheng Lin,Maria Janina Carrera Espinoza 한국공업화학회 2021 Journal of Industrial and Engineering Chemistry Vol.102 No.-

        Hepatocellular carcinoma (HCC) is the most prevalent type of liver cancer, accounting for about 75% of allliver cancers. It is the third most common basis for cancer mortality worldwide, and unfortunately, itstreatment is often limited by the shortage of appropriate therapeutic options and side effects causedby the current treatment methods. To overcome this, doxorubicin (DOX)-loaded pH-/thermoresponsivemagnetic mesoporous nanocarriers were formulated and evaluated for their in vitro anticanceractivity against HCC. These nanocarriers consist of iron oxide (IO) nanoparticles conjugated withSBA-15 (S15) and Pluronic F127 (PF) to form IOS15 nanocomposites and IOS15@PF nanocarriers. The preparednanocarriers were superparamagnetic with saturation magnetizations of IOS15 and IOS15@PFbeing 76.3 and 72.1 emu/g, respectively. Small-angle neutron/X-ray scattering (SANS/SAXS) studiesshowed that the developed nanocarriers are temperature-sensitive and possess hexagonally arrangedstructures. Cell viability studies demonstrated that IOS15@PF@DOX nanocomplexes induced more apoptosisor necrosis. A temperature (69% release after 48 h)- and pH (70% release after 48 h)-dependent DOXrelease was observed, whereby more DOX was released at a high temperature of 42 C and pH value of5.4. Thus, the developed nanocarriers possess great potential for use in the targeted delivery of conventionalchemotherapeutic drugs with enhanced efficiency.

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        Chlorophyll-Related Compounds Inhibit Cell Adhesion and Inflammation in Human Aortic Cells

        Kuan-Hung Lin,Ching-Yun Hsu,Ya-Ping Huang,Jun-You Lai,Wen-Bin Hsieh,Meng-Yuan Huang,Chi-Ming Yang,Pi-Yu Chao 한국식품영양과학회 2013 Journal of medicinal food Vol.16 No.10

        The objectives of this study were to investigate the effects of chlorophyll-related compounds (CRCs) and chlorophyll (Chl) a + b on inflammation in human aortic endothelial cells. Adhesion molecule expression and interleukin (IL)-8, nuclear factor (NF)-jB p65 protein, and NF-jB and activator protein (AP)-1 DNA binding were assessed. The effects of CRCs on inflammatory signaling pathways of signal transducers and activators of transcription 3 (STAT3) and mothers against decapentaplegic homolog 4, respectively induced by IL-6 and transforming growth factor (TGF)-b, in human aortic smooth muscle cells cultured in vitro were also investigated. HAECs were pretreated with 10 lM of CRCs, Chl a + b, and aspirin (Asp) for 18 h followed by tumor necrosis factor (TNF)-a (2 ng/mL) for 6 h, and U937 cell adhesion was determined. TNF-a–induced monocyte-endothelial cell adhesion was significantly inhibited by CRCs. Moreover, CRCs and Chl a + b significantly attenuated vascular cell adhesion molecule-1, intercellular adhesion molecule-1, and IL-8 expressions. Treatments also significantly decreased in NF-jB expression, DNA binding, and AP-1 DNA binding by CRCs and Asp. Thus, CRCs exert anti-inflammatory effects through modulation of NF-jB and AP-1 signaling. Ten micromoles of CRCs and Asp upregulated the expression of mothers against decapentaplegic homolog 4 (Drosophila) (SMAD4) in the TGF-b receptor signaling pathway, and SMAD3/4 transcription activity was also increased. Ten micromoles of CRCs were able to potently inhibit STAT3-binding activity by repressing IL-6–induced STAT3 expression. Our results provide a potential mechanism that explains the anti-inflammatory activities of these CRCs.

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