• Title/Summary/Keyword: Reporter

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Non-Invasive Environmental Detection using Heat Shock Gene-Green Fluorescent Protein Fusions

  • Cha, Hyeong-Jun
    • 한국생물공학회:학술대회논문집
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    • 2000.04a
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    • pp.355-356
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    • 2000
  • Three 'stress probe' plasmids were constructed and characterized which utilize a green fluorescent protein (CFP) as a non-invasive reporter to elucidate Escherichia coli cellular stress responses in quiescent or 'resting' cells. Facile detection of cellular stress levels was achieved by fusion of three heat shock stress protein promoter elements, those of the heat shock transcription factor ${\sigma}^{32}$, pretense subunit ClpB, and chaperone DnaK, to the reporter gene $gfp_{uv}$. When perturbed by chemical or physical stress (such as heat shock, nutrient (amino acid) limitation, addition of IPTG, acetic acid, ethanol, phenol, antifoam, and salt (osmotic shock), the E. coli cells produced GFPuv which was easily detected from within the cells as emitted green fluorescence. A temporal and amplitudinal mapping of these responses was performed, demonstrating regions where quantitative delineation of cell stress was afforded.

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A Meta-analysis of the Gender Differences and Variables Related to Overt and Relational Aggression in Children and Adolescents (아동과 청소년의 외현적, 관계적 공격성의 성별 차이 및 관련변인에 대한 메타분석)

  • Seo, Mi-Jung
    • Korean Journal of Child Studies
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    • v.32 no.3
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    • pp.143-162
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    • 2011
  • This study presents a meta-anlalytic review of 119 studies, published between 1990 and 2009, of gender differences and variables associated with overt and relational aggression during childhood and adolescence. Gender differences in overt aggression were found to be significantly higher in boys than girls, but significant gender differences in relational aggression were not found. Gender differences of only overt aggression are moderated by age and the reporter type. In general, both overt and relational aggression are more strongly related to maladjustment than adjustment. In addition to this, overt and relational aggression has both common and differential associations with relative levels of maladjustment and adjustment. The moderation of these effect sizes of both overt and relational aggression by age and the reporter type was found.

In Vivo Reporter Gene Imaging: Recent Progress of PET and Optical Imaging Approaches

  • Min, Jung-Joon
    • Bioinformatics and Biosystems
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    • v.1 no.1
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    • pp.17-27
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    • 2006
  • Recent progress in the development of non-invasive imaging technologies continues to strengthen the role of molecular imaging biological research. These tools have been validated recently in variety of research models, and have been shown to provide continuous quantitative monitoring of the location(s), magnitude, and time-variation of gene delivery and/or expression. This article reviews the use of radionuclide, magnetic resonance, and optical imaging technologies as they have been used in imaging gene delivery and gene expression for molecular imaging applications. The studies published to date demonstrate that noninvasive imaging tools will help to accelerate pre-clinical model validation as well as allow for clinical monitoring of human diseases.

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In vitro and in vivo Transient Expression in Insect Cells Mediated by the Cationic Liposome DDAB/DOPE

  • Xiao, Qing-Li;Zhou, Ya-Jing;Zhang, Zhi-Fang;He, Jia-Lu
    • International Journal of Industrial Entomology and Biomaterials
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    • v.4 no.1
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    • pp.57-62
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    • 2002
  • Cationic liposomes complexed with DNA have been extensively utilized for the delivery of reporter or therapeutic genes both in culture and in vivo. We investigated and determined the optimum conditions of a cationic liposome, composed of dimethyldioctadecy-lammonium bromide (DDAB) and dioleoyl phosphati-dylethanolamine UOPE), mediated a reporter plasmid expressing luciferase into insect cell lines (Sf-21 and Bm-N) and silkworm larvae. Together the data demonstrated that Bombyx mori nuclear polyhedrosis virus (BmNPV) genomic DNA (128 kb) was successfully transfected into Bm-5 cells using this liposome. These results suggest that DDAB/DOPE liposome will be useful as delivery agents for gene transfer to insect cells both in vitro and in vivo.

Survey of the heterogeneous gene expression in olive flounder muscle using the luciferase reporter gene system

  • Hong, Suhee;Lee, Sang-Jun
    • Journal of fish pathology
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    • v.16 no.3
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    • pp.147-152
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    • 2003
  • The CMV promoter driven luciferase reporter gene coding plasmid (pcDNA-luc) was constructed and used as a model for DNA immunization study. Expression of the recombinant luciferase protein was confirmed in vitro in RTG-2 cell line before using in vivo study in olive flounder. In dose response study, the maximum expression of the luciferase gene was found in the group injected with 10-15μg of plasmid DNA. The kinetic study showed that the luciferase gene expression was reached at the maximum level at one day after injection and slightly decreased after then but significantly high level of expression was sustained until the conducted experiment of 7 days. In the study of tissue distribution of gene expression, it was found that luciferase gene was expressed at the significant level in immune organs such as gill and spleen, located far from the injected site, suggesting the systemic distribution of the intramuscularly injected DNA in olive flounder.

Effects of Mother's Personality Traits on Maternal Childrearing Behaviors (어머니의 성격특성이 양육행동에 미치는 영향 - 양육행동에 대한 어머니와 아동의 지각 차이를 중심으로 -)

  • Park, Young Yae;Choi, Young Hee;Park, In Jeon
    • Korean Journal of Child Studies
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    • v.23 no.2
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    • pp.71-88
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    • 2002
  • The subjects of this study on the effects of mother's personality on her childrearing behaviors were 1060 mothers and their $5^{th}$ grade children. Results indicated that maternal childrearing behaviors were related to her personality traits. The effects of mother's personality on her childrearing behaviors varied by sex of child, reporter (mother/child), and childrearing behavior factors. Mother-reported childrearing behaviors correlated more highly with her personality than child-reported behaviors. Behaviors reported by girls provided higher correlations between mother's personality and childrearing dimensions than reports by boys. Mother's personality traits showed differential correlations with childrearing dimensions of Rejection-Restriction (R R) and Warmth-Acceptance (W A) by reporter and sex of child. R R was affected by mother's Impulsiveness more among girls than among boys. Maternal Superiority increased W A toward boys while maternal Responsibility increased W A toward girls.

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SERS Immunoassay Using Microcontact Printing for Application of Sensitive Biosensors

  • Hong, Won-Jin;Seo, Hyeong-Kuyn;Jung, Young-Mee
    • Bulletin of the Korean Chemical Society
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    • v.32 no.12
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    • pp.4281-4285
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    • 2011
  • We introduced a promising patterned substrate by using a microcontact printing method that can be used for SERS immunoassays based on antigen-antibody binding. SERS spectrum of the Raman reporter with antibody, which is rhodamine 6G (R6G) adsorbed on colloidal gold nanoparticles, was observed only for the surfaces in which prostate-specific antigen (PSA) is present on the substrate that is attached to an immobilized layer of antibody on the gold nanoparticles layer of the patterned substrate. Raman mapping images clearly showed that the antibodies on the Raman reporter were successfully and selectively conjugated with the antigen on the patterned substrate. This method could be potentially extended to multi-protein detections and ultrasensitive biosensors.

Effects on the transcriptional activity by the JSRV Env (JSRV Env가 세포의 전사 활성에 미치는 영향)

  • Kim, Jung-Woo
    • The Journal of Natural Sciences
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    • v.15 no.1
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    • pp.89-95
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    • 2005
  • JSRV, which causes sheep lung cancer, is known to have the transforming activity of NIH3T3 cells. Especially Envelope protein of this virus has the transforming activity to NIH3T3. To know the effects on the transcriptional activity of transcription factors by this viral protein transient transfection was performed by using the luciferase reporter system. The result showed that JSRV Envelope protein increased the transcriptional activity of NF-kB and AP-1.

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A Series of IncQ-Based Reporter Plasmids for Use in a Range of Gram-Negative Genera

  • O'Sullivan, Laura E.;Nickerson, Cheryl A.;Wilson, James W.
    • Journal of Microbiology and Biotechnology
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    • v.20 no.5
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    • pp.871-874
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    • 2010
  • Many studies require expression analysis of the same gene/promoter across a range of bacterial genera. However, there is currently a lack of availability of reporters based on the broad-host-range IncQ replicon, which is compatible with a popular improved IncP transfer system that is self-transfer defective. We report IncQ lacZ reporter plasmids with features including (1) compatibility with IncP, IncW, and pBHR/pBBR replicons, (2) a variety of antibiotic markers (Sp-r, Sm-r, Km-r, Cm-r), (3) convenient mobilization via a novel self-transfer-defective IncP conjugation system, and (4) GenBank DNA sequences. Utility is demonstrated using three different promoters in different Gram-negative genera.

INVESTIGATION OF IN VITRO AND IN VIVO ESTROGENIC OR ANTIESTROGENIC ACTIVITY OF CYPERMETHRIN

  • Kim, Soon-Sun;Rhee, Gyu-Seek;Kwack, Seung-Jun;Sohn, Kyung-Hee;Kim, So-Hee;Lee, Rhee-Da;An, Sang-Mi;Ki-Eun. Jeong;Sheen, Yhun-Yhong
    • Proceedings of the Korean Society of Toxicology Conference
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    • 2002.11b
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    • pp.166-166
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    • 2002
  • In the present study, estrogenic or antiestrogenic activity of cypermethrin, a pyrethroid insecticide was investigated. We used immature rat uterotrophic assay, estrogen-responsive calbindin-D9k (CaBP-9k) gene expression assay and luciferase reporter gene assay for measure of estrogenic potential of cypermethrin.(omitted)

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