• Title/Summary/Keyword: ${\beta}$-actin

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Comparative Study of DNA Fragment According to Steps of Genetically Modified Soybean Processed Food (대두 가공식품의 공정단계별 유전자재조합체(GMO) 단편의 검출확인 및 비교 연구)

  • Hwang, Sun-Wook;Lee, Cheol-Su;Nam, Young-Suk;Kim, Su-Bok;Oh, Duk-Hwan;Kim, Young-Chan
    • Journal of Food Hygiene and Safety
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    • v.18 no.4
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    • pp.211-217
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    • 2003
  • To discriminate between the genetically modified soybean processed foods which were Korean traditional foods as Beansprout, doenjang, Beancurd (Tofu) and the unmodified one. we had analyzed comparatively that the loss degree of inner DNA about denaturalization factors in process step as heat or pressure and decision of suitable PCR primer by size. As a result of having compared about ${\beta}$-actin was 160bp, 335 promotor was 130 bp and NOS terminator was 132 bp effective. As a result of having checked a loss degree of a gene, as for the bean curd, DNA was mostly preserved well, and the loss of DNA along the processing process was hardly observed by a processing process. Most DNA of beansprout have moved to trunk after germination stage, and the appropriate analysis part was judged as the trunk. And the doenjang showed a detection difference of DNA by an operation of an enzye among self-life periods. Besides, after 50days, insertion gene was destoryed entrely so that detection was not possible.

The Experimental Study on the Suppression Effect of Asthma and Immune Response Improvement of Platycodi Radix Herbal-acupuncture (길경약침(桔梗藥鍼)의 천식억제(喘息抑制) 및 면역조절효과(免疫調節效果)에 대(對)한 실험적(實驗的) 연구(硏究))

  • Park, Chi-Young;Kim, Young-Il;Hong, Kwon-Eui
    • Journal of Acupuncture Research
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    • v.22 no.6
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    • pp.61-74
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    • 2005
  • Objectives : The aim of this study was to investigate the effect of Asthma-depression and Immunoregulation with PR-HAS(Herbal-acupuncture with Platycodi Radix infusion solution) injection at Joksamni(St36) on ovalbumin-induced asthma in mice. Methods : C57BL/6 mice were sensitized and challenged with OVA(ovalbumin) for 12 weeks(once a week). The experimental group(OVA-PR-HA) wase treated with concentrations(1%) of PR-HAS at Joksamni(St36) for the later 8 weeks(3times/week). The second experimental group(OVA-Needle prick) was treated with Needle-Prick at Joksamni(St36) for the later 8 weeks(3times/week). Results : 1. The weight and total cells in the mice lung treated with PR-HA decreased significantly compared with that of control group. 2. Total leukocytes and eosinophils in BALF of the mice group treated with PR-HA decreased remarkably compared with those of control group. 3. The sticking of collagen on histological analysis of lung sections, the mice group treated with PR-HA decreased significantly compared with those of control group. 4. The concentrations of IL-4, IL-5, IgE in BALF, and IL-4, IL-5, IL-13 in serum of the mice group treated with PR-HA decreased significantly compared with those of control group. 5. The number of $Gr-1^+/CD11b^+\;and\;CD11b^+$ cells in the lungs of the mice group treated with PR-HA decreased significantly compared with that of control group. 6. The numbers of $CCR3^+\;cells,\;CD4^+\;cells\;and\;CD8^+\;cells$ in the lungs, and $CD3e^+/CD69^+$ in the lungs of the mice group treated with PR-HA decreased significantly compared with those of control group. 7. The mRNA expression of ${\beta}-actin,\;TNF-{\alpha}$, IL-4, IL-5,IL-13 in the mice group treated with PR-HA with RT-PCR decreased significantly compared with those of control group. Conclusion : The concentrations of IL-4, IL-5, IgE in BALF, and IL-4, IL-5, IL-13 in serum of the mice group treated with PR-HA decreased significantly compared with those of control group. The number of $Gr-1^+/CD11b^+\;and\;CD11b^+$ cells in the lungs of the mice group treated with PR-HA decreased significantly compared with that of control group. The numbers of $CCR3^+\;cells,\;CD4^+\;cells\;and\;CD8^+\;cells$ in the lungs, and $CD3e^+/CD69^+$ in the lungs of the mice group treated with PR-HA decreased significantly compared with those of control group. The mRNA expression of ${\beta}-actin,\;TNF-{\alpha}$, IL-4, IL-5, IL-13 in the mice group treated with PR-HA with RT-PCR decreased significantly compared with those of control group. These result suggests that Platycodi Radix Herbal-acupuncture at Joksamni(St36) in C57BL/6mice may be an effictive part to OVA-induced asthma in C57BL/6 mice.

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Effects of Jengjengamiyijin-tang (zhengzhuanjiaweierchentang) on Lowering Lipid, Antioxidation and Production of Inflammatory Mediators Being Used Rats Fed on High Oxidized Fat (정전가매이진탕(正傳加味二陳湯)이 과산화지질 급여 비만 쥐의 지질강하, 항산화효과 및 염증매개물질의 생산에 미치는 영향)

  • Heo, Seong-Kyu;Park, Won-Hyung;Cha, Yun-Yeop
    • Journal of Korean Medicine Rehabilitation
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    • v.23 no.4
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    • pp.9-21
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    • 2013
  • Objectives The purpose of this study was investigating effects of Jengjengamiyijin-tang (zhengzhuanjiaweierchentang) (JGYT) on lowering lipid, antioxidation and production of inflammatory mediators being used rats fed on high oxidized fat. Methods We divided fat Sprague-Dawley rats fed on high oxidized into 4 groups. Each of 8 rats was divided into a control group and experimental groups. We fed a control group of rats a basal diet and administered normal saline (100 mg/kg, 1 time/1 day) for 4 weeks. And We fed each experimental group of rats basal diet and administered an extract of JGYT extracts (100 mg/kg, 200 mg/kg, 300 mg/kg, 1 time/1 day) for 4 weeks. At the end of the experiment, the rats were sacrificed to determine their chemical composition. We measured lipid of plasma and liver, concentration of proinflammatory cytokines, antioxidative activity and plasma tumor necrosis factor-${\alpha}$ (TNF-${\alpha}$), plasma interleukin-6 (IL-6), Apo-B, Apo-E and Leptin gene expression. Results 1. Concentration of plasma FFA, LDL-cholesterol, plasma and liver total cholesterol showed a significant decrement in JGYT groups. However, concentration of plasma HDL-cholesterol showed a significant increment in JGYT groups. 2. Concentration of plasma and liver TG, TBARS showed a significant decrement in JGYT groups. However, concentration of liver GSH-Px, SOD and CAT showed a significant increment in JGYT groups. 3. Plasma GPT activity and concentration of plasma IL-6, TNF-${\alpha}$, NO, Ceruloplasmin, ${\alpha}1$-acid glycoprotein showed a significant decrement in JGYT groups. 4. In the analysis of RT-PCR, gene expression of Apo-B and Apo-E in the JGYT groups showed a low expression than that of control group. However, the gene expression of leptin showed no difference in all the treatment groups. 5. The ratio of leptin expression per ${\beta}$-actin expression showed no significant difference among all treatment groups. However, The ratio of Apo-B and Apo-E expression per ${\beta}$-actin expression showed a significant decrement in JGYT groups. Conclusions According to this study, extract of JGYT showed a positive effect in lowering lipid, antioxidation and control of inflammatory mediators production.

Studies on Cosmeceutical Activity of Extracts of Moringa oleifera Extract (모링가 추출물에 대한 화장품약리활성 검증)

  • Kim, So Ra;Yoo, Dan Hee;Yeom, Hyeon Ji;Oh, Min Jeong;Lee, Jin Young
    • Journal of the Society of Cosmetic Scientists of Korea
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    • v.44 no.3
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    • pp.219-229
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    • 2018
  • The purpose of this study was to investigate the role of the Moringa oleifera (M. oleifera) extract as a cosmetic additive. The tyrosinase and elastase inhibitory effects showed 47% and 39% at $1,000{\mu}g/mL$ concentration, respectively. Also, the collagenase inhibition effect was 31% at $500{\mu}g/mL$ concentration. A cell viability test, measured on macrophage cell (RAW 264.7) and melanoma cell (B16F10) by ethanol extract of M. oleifera, showed 94.2% and 94.8% at $100{\mu}g/mL$ concentration, respectively. In order to confirm anti-inflammatory activity, we examined the inhibitory effects on the production of lipopolysaccharides (LPS)-induced NO in RAW 264.7 cells by Griess assay. As a result, the M. oleifera extract showed a concentration-dependent inhibition of NO production. The protein expression inhibitory effects of M. oleifera extract were measured by western blot at 25, 50, $100{\mu}g/mL$ concentration and the ${\beta}-actin$. Results showed that the expression inhibition rates of the iNOS, COX-2, MITF, TRP-1, TRP-2, tyrosinase protein were decreased by 85.8%, 57.5%, 80.7%, 30%, 29.9%, 23.6% at $100{\mu}g/mL$ concentration, respectively. It was concluded that M. oleifera extracts had the anti-inflammatory and whitening effects and thus could be applied for cosmetics as a natural ingredient.

ANXA2 Regulates the Behavior of SGC-7901 Cells

  • Sun, Meng-Yao;Xing, Rui-Huan;Gao, Xiao-Jie;Yu, Xiang;He, Hui-Min;Gao, Ning;Shi, Hong-Yan;Hu, Yan-Yan;Wang, Qi-Xuan;Xu, Jin-Hui;Hou, Ying-Chun
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.10
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    • pp.6007-6012
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    • 2013
  • ANXA2, a member of the annexin family, is overexpressed and plays important roles in tumor development. However, the significance of ANXA2 expression in gastric carcinoma has not been clarified.To elucidate its roles in growth of gastric cancer, ANXA2 expression in SGC-7901 cells was inhibited with a designated siRNA, then cell proliferation, cell cycling, apoptosis and motility were determined by MTT assay, flow cytometry, Hoechst 33342 staining and wound healing assay, respectively. To further assess the behavior of ANXA2 deleted SGC-7901 cells, changes of microstructures were observed under fluorescence microscopy, laser scanning confocal microscopy and electron microscopy. We found that inhibition of ANXA2 expression caused cell proliferation to decrease significantly with G1 arrest, motility to be reduced with changes in pseudopodia/filopodia structure and F-actin and ${\beta}$-tubulin expression, and apoptosis to be enhanced albeit without significance. At the same time, ANXA2 deletion resulted in fewer pseudopodia/filopodia, non-stained areas were increased, contact inhibition among cells reappeared, and expression of F-actin and ${\beta}$-tubulin was decreased, with induction of polymerized disassembled forms. Taken together, these data suggest that ANXA2 overexpression is important to maintain the malignancy of cancer cells, and this member of the annexin family has potential to be considered as a target for the gene therapy of gastric carcinoma.

Optimization of Reference Genes for Normalization of the Quantitative Polymerase Chain Reaction in Tissue Samples of Gastric Cancer

  • Zhao, Lian-Mei;Zheng, Zhao-Xu;Zhao, Xiwa;Shi, Juan;Bi, Jian-Jun;Pei, Wei;Feng, Qiang
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.14
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    • pp.5815-5818
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    • 2014
  • For an exact comparison of mRNA transcription in different samples or tissues with real time quantitative reverse transcription-polymerase chain reaction (qRT-PCR), it is crucial to select a suitable internal reference gene. Glyceraldehyde 3-phosphate dehydrogenase (GAPDH) and beta-actin (ACTB) have been frequently considered as house-keeping genes to normalize for changes in specific gene expression. However, it has been reported that these genes are unsuitable references in some cases, because their transcription is significantly variable under particular experimental conditions and among tissues. The present study was aimed to investigate which reference genes are most suitable for the study of gastric cancer tissues using qRT-PCR. 50 pairs of gastric cancer and corresponding peritumoral tissues were obtained from patients with gastric cancer. Absolute qRT-PCR was employed to detect the expression of GAPDH, ACTB, RPII and 18sRNA in the gastric cancer samples. Comparing gastric cancer with corresponding peritumoral tissues, GAPDH, ACTB and RPII were obviously upregulated 6.49, 5.0 and 3.68 fold, respectively. Yet 18sRNA had no obvious expression change in gastric cancer tissues and the corresponding peritumoral tissues. The expression of GAPDH, ${\beta}$-actin, RPII and 18sRNA showed no obvious changes in normal gastric epithelial cells compared with gastric cancer cell lines. The carcinoembryonic antigen (CEA), a widely used clinical tumor marker, was used as a validation gene. Only when 18sRNA was used as the normalizing gene was CEA obviously elevated in gastric cancer tissues compared with peritumoral tissues. Our data show that 18sRNA is stably expressed in gastric cancer samples and corresponding peritumoral tissues. These observations confirm that there is no universal reference gene and underline the importance of specific optimization of potential reference genes for any experimental condition.

Proteome Analysis of Responses to Ascochlorin in LPS-induced Mouse Macrophage RAW264.7 Cells by 2-D Gel Electrophoresis and MALDI-TOF MS. (LPS로 자극된 macrophage RAW264.7 세포에서 ascochlorin에 대한 단백질체 분석)

  • Chang, Young-Chae
    • Journal of Life Science
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    • v.18 no.6
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    • pp.814-825
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    • 2008
  • Ascochlorin (ASC) is prenyl-phenol compound that was isolated from the fungus Ascochyta viciae. ASC reduces serum cholesterol and triglyceride levels, and suppresses hypertension, tumor development, ameliorates type I and II diabetes. Here, to better understand the mechanisms by which ASC regulates physiological or pathological events and induces responses in the pharmacological treatment of inflammation, we performed differential analysis of the proteome of the mouse macrophage RAW264.7 cells in response to ASC. In this study, we used a proteomic analysis of LPS-induced RAW264.7 cells treated by ASC, to identify proteins potentially involved in inflammatory processes. The RAW264.7 cell proteomes with and without treatment with ASC were compared using two-dimensional electrophoresis (2-D SDS-PAGE), matrix-assisted laser desorption/ionization mass spectrometry (MALDI-TOF-MS) and bioinformatics. The largest differences in expression were observed for the calreticulin (4-fold decrease), ${\beta}-actin$ (4-fold decrease) and vimentin (1.5-fold decrease). In addition, rabaptin was increased 3-fold in RAW264.7 cells treated with ASC. The expression of some selected proteins was confirmed by RT-PCR analysis.

Apolipoprotein A1 Inhibits TGF-β1-Induced Epithelial-to-Mesenchymal Transition of Alveolar Epithelial Cells

  • Baek, Ae Rin;Lee, Ji Min;Seo, Hyun Jung;Park, Jong Sook;Lee, June Hyuk;Park, Sung Woo;Jang, An Soo;Kim, Do Jin;Koh, Eun Suk;Uh, Soo Taek;Kim, Yong Hoon;Park, Choon Sik
    • Tuberculosis and Respiratory Diseases
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    • v.79 no.3
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    • pp.143-152
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    • 2016
  • Background: Idiopathic pulmonary fibrosis (IPF) is a progressive and lethal lung disease characterized by the accumulation of excessive fibroblasts and myofibroblasts in the extracellular matrix. The transforming growth factor ${\beta}1$ (TGF-${\beta}1$)-induced epithelial-to-mesenchymal transition (EMT) is thought to be a possible source of fibroblasts/myofibroblasts in IPF lungs. We have previously reported that apolipoprotein A1 (ApoA1) has anti-fibrotic activity in experimental lung fibrosis. In this study, we determine whether ApoA1 modulates TGF-${\beta}1$-induced EMT in experimental lung fibrosis and clarify its mechanism of action. Methods: The A549 alveolar epithelial cell line was treated with TGF-${\beta}1$ with or without ApoA1. Morphological changes and expression of EMT-related markers, including E-cadherin, N-cadherin, and ${\alpha}$-smooth muscle actin were evaluated. Expressions of Smad and non-Smad mediators and TGF-${\beta}1$ receptor type 1 ($T{\beta}RI$) and type 2 ($T{\beta}RII$) were measured. The silica-induced lung fibrosis model was established using ApoA1 overexpressing transgenic mice. Results: TGF-${\beta}1$-treated A549 cells were changed to the mesenchymal morphology with less E-cadherin and more N-cadherin expression. The addition of ApoA1 inhibited the TGF-${\beta}1$-induced change of the EMT phenotype. ApoA1 inhibited the TGF-${\beta}1$-induced increase in the phosphorylation of Smad2 and 3 as well as that of ERK and p38 mitogen-activated protein kinase mediators. In addition, ApoA1 reduced the TGF-${\beta}1$-induced increase in $T{\beta}RI$ and $T{\beta}RII$ expression. In a mouse model of silica-induced lung fibrosis, ApoA1 overexpression reduced the silica-mediated effects, which were increased N-cadherin and decreased E-cadherin expression in the alveolar epithelium. Conclusion: Our data demonstrate that ApoA1 inhibits TGF-${\beta}1$-induced EMT in experimental lung fibrosis.

Analysis of Vitellogenin Gene Expression by RT-PCR in Hemibarbus labeo (Cyprinidae) for the Analysis of Estrogenic Activity in Aquatic Environment (수환경 내 Estrogen 에스트로젠 활성 검출을 위한 누치 난황전구단백질 유전자 발현의 RT-PCR시험법)

  • Gye, Myung-Chan
    • Korean Journal of Ecology and Environment
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    • v.37 no.1 s.106
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    • pp.122-129
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    • 2004
  • In an effort to develop the biomarker for monitoring the contamination of xenoestrogen in the freshwater environment of Korea, reverse transcription-polymerasechain reaction (RT-PCR) analysis of vitellogenin (VTG) gene expression was optimized in Hearisarsus Iaseo, Based on the homology of the VTG cDNA sequences between the common carp and zebra fish, a set of PCR primers for VTG mRNA amplification for H; labo was designed. VTG mRNA level in livers from female and male fishes was analyzed by RT-PCR following single injection of 17 beta estradiol($E_2$ 10 mg $kg^{-1}$ B.W.). As an internal control, beta actin mRNA was amplified. One us of total liver RNA was subjected to RT-PCR. In female the amount of PCR productof VfC gradually increased in the range from 16 to 34 cycles of amplification. On the contrary, in control male, PCR product first detected at 32 cycles of amplification and linearly increased up to 40 cycles of amplification. In $E_2$ injected male liver, the VTC mRNA level was similar to that in the female. Taken together, this result suggests that liver of male H. labo expresses minute amount of VTG mRNA which are2-l6 equivalent of female and that induction of VTG mRNA occurs in male liver after estrogen treatment. In conclusion, the optimized protocol for RT-PCR analysis of VTG mRNA expression in liver of male H. labo will provide the environmental monitoring method for the xenoestrogen contamination in the rivers in Korea.

The Inhibitory Effects of Socheongryong-tang and Socheongryong-tang plus Sasam (Adenophorae Radix) on the IL-6, IL-8 and GM-CSF mRNA Levels in Human Epithelial Cells (소청용탕과 소청용탕가사삼이 BEAS-2B 인간 기관지상피세포의 IL-6, IL-8 및 GM-CSF mRNA level에 미치는 영향)

  • 정진용;정희재;정승기;이형구
    • The Journal of Korean Medicine
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    • v.24 no.1
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    • pp.74-83
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    • 2003
  • Background : Production of cytokines by bronchial epithelial cells may contribute to the local accumulation of inflammatory cells in patients with bronchial asthma. In many recent studies, molecular biological methods have been used to investigate the role of cytokines in pathogenesis and new therapeutic targets of asthma. Objective : We aimed to identify the dose-dependent inhibitory effects of Socheongryong-tang and Socheongryong-tang plus Sasam (Adenophorae Radix) on the mRNA expressions of Interleukin (IL)-6, IL-8 and granulocyte macrophage colony stimulating factor (GM-CSF) involved in the asthma model. Materials and Methods : In this study, BEAS-2B cell lines, human epithelial cells, were used. These cells were stimulated by tumor necrosis factor $(TNF)-{\alpha},{\;}IL-1{\beta}$ and histamine for artificial inflammatory expression. ${\beta}-actin$ messenger RNA (mRNA) was used for the internal standard. After each 24 hours of the Socheongryong-tang (小靑龍湯) and Socheongryong-tang plus Sasam (小靑 龍湯加沙蔘) treatment, total cellular RNAs were collected by applying RNAzol directly to the living cells. Then the transcriptional activities of IL-6, IL-8 and GM-CSF were measured by RT-PCR with electrophoresis. Results : In the Socheongryong-tang (小靑龍湯) study, the mRNA expressions of IL-6, IL-8 and GM-CSF were significantly inhibited compared to that of the control group (p<0.05). In the Socheongryong-tang plus Sasam (小靑龍湯加沙蔘) study, the mRNA expressions of IL-6, IL-8 and GM-CSF were significantly inhibited compared to that of the control group (p<0.05). Conclusions : This study shows that Socheongryong-tang (小靑龍湯) and Socheongryong-tang plus Sasam (小靑龍湯加沙蔘) have dose-dependent inhibitory effects on the mRNA expressions of IL-6, IL-8 and GM-CSF in human epithelial cells, so these herbal medicines may inhibit the inflammatory process of asthma. Advanced studies are required to investigate the mechanisms of inhibition by herbal medicine in the asthma model.

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