• 한국식물생명공학회:학술대회논문집
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• 한국식물생명공학회 2004년도 생명공학 실용화를 위한 비젼
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• pp.101-101
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• 2004

• 한국독성학회:학술대회논문집
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• 한국독성학회 2003년도 추계학술대회
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• pp.86-86
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• 2003

Gene therapy is a medical intervention based on modification of the genetic material of living cells. Gene transfer usually conducted using bacterial plasmid DNA and/or virus vector to express a specific protein. Gene transfer medicinal products classified as naked nucleic acid, complexed nucleic acid or non-viral vectors, viral vector, and genetically modified cells according to biological origin.(omitted)

• 한국환경성돌연변이발암원학회지
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• 제22권3호
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• pp.157-163
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• 2002

The role of the kidney in initiating hypertension has been much debated. The SA gene is expressed in the kidney and is association with hypertension in man and in experimental animal models. Also, increased plasma concentrations of homocysteine have been found in patients with coronary artery disease (CAD) and hypertension. The genetic variation of methlene tetrahydrofolate reductase (MTHFR) gene is related to its enzyme activity and to the plasma homocysteine concentration. In view of the effect of SA and MTHFR as risk factor for cardiovascular diseases, we investigated the Pst I RFLP of the SA gene and C667T mutation of the MTHFR gene in the Korean patients with hypertension. There were no significant differences in the allele and genotype frequencies of these polymorphisms between normotensive and hypertensive subjects. Therefore, our results do not support a possible role of these genes on hypertension in Korean population.

• Journal of Microbiology and Biotechnology
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• 제8권2호
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• pp.146-151
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• 1998

The aminoglycoside multiple-resistance determinant from Streptoalloteichus hindustanus was cloned into Streptomyces lividans and named nbrB. The 1.2-kb ApaI- BclI fragment encompassing nbrB was located within a 2.6-kb ApaI fragment by successive subcloning experiments. The complete DNA nucleotide sequence of 1.2-kb containing nbrB was determined. The sequence contains an open reading frame that putatively encodes a polypeptide of 281 amino acids with a predicted molecular weight of 30,992. The deduced amino acid sequence of nbrB shows identities of 85.1% to kgmB of S. tenebrarius, 59.6% to sgm of Micromonospora zionensis, and 57.7% to grm of M. rosea. The similarity of nbrB to kgmB suggests that nbrB encodes a 16S rRNA methylase similar to that encoded by kgmB and that both genes might be derived from a common ancestral gene.

• Journal of Microbiology and Biotechnology
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• 제16권5호
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• pp.740-747
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• 2006

Amplification by universal consensus sequences in pathogenic bacterial DNA would allow rapid identification of pathogenic bacteria, and amplification of genus-specific and species-specific sequences of pathogenic bacterial DNA might be used for genotyping at the genus and species levels. For design of probes for molecular diagnostics, several tools are available as stand-alone programs or as Web application. However, since most programs can design only a few probe sets at one time, they are not suitable for large-scale and automatic probes design. Therefore, for high-throughput design of specific probes in diagnostic array development, an automated design tool is necessary. Thus, we developed a Web-based automatic system for design of genus-specific and species-specific probes for pathogen detection. The system is available at http://www.miprobe.com.

• 한국생물정보학회:학술대회논문집
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• 한국생물정보시스템생물학회 2003년도 제2차 연례학술대회 발표논문집
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• pp.200-209
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• 2003

주어진 염기서열에서 유전자 영역을 예측하는 유전자 구조 예측은 유전체 프로젝트의 중요한 과정 중 하나이며 유전체 프로젝트 전체에 큰 영향을 준다. 진핵생물의 유전체가 원핵생물의 유전체에 비해 더 복잡한 구조를 가지기 때문에 진핵생물의 유전자 구조 예측 모델 역시원핵생물에 비해 다양한 모델이 제안되었다. 본 연구팀은 duration hidden markov model을 기본형태로 하여 EGSP(Eukaryotic Gene Structure Prediction)프로그램을 개발하였다. 현재 개발된 진핵생물의 유전자 구조 예측 알고리즘 중에서 GenScan이 가장 정교한 젓으로 보고 되고 있는데, EGSP의 결과분석을 위해 Genscan과 함께 GeneID, Morgan의 예측결과를 여러 가지 기준에서 비교하였다. EGSP는 정교한 예측모델을 가지고 있음에도 각 구성모듈에 대한 파라메터의 정교함에서 부족한 면이 나타나므로, 모델의 개선과 각 모듈의 조율을 통해 더욱 개선된 결과를 가지게 될 것이다.

• Journal of Microbiology and Biotechnology
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• 제19권2호
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• pp.140-146
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• 2009

MAPSI(Management and Analysis for Polyketide Synthase Type I) has been developed to offer computational analysis methods to detect type I PKS(polyketide synthase) gene clusters in genome sequences. MAPSI provides a genome analysis component, which detects PKS gene clusters by identifying domains in proteins of a genome. MAPSI also contains databases on polyketides and genome annotation data, as well as analytic components such as new PKS assembly and domain analysis. The polyketide data and analysis component are accessible through Web interfaces and are displayed with diverse information. MAPSI, which was developed to aid researchers studying type I polyketides, provides diverse components to access and analyze polyketide information and should become a very powerful computational tool for polyketide research. The system can be extended through further studies of factors related to the biological activities of polyketides.

• 대한화장품학회지
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• 제40권2호
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• pp.155-162
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• 2014

본 연구에서는 낙타유를 유효성분으로 하여 리포좀을 제조하였고, 이를 이용하여 항노화 효능을 갖는 화장품 원료를 개발하고자 다양한 실험을 실시하였다. 제조된 낙타유 리포좀은 피부 섬유아세포에서 collagen과 hyaluronan synthase-3 (HAS-3)의 발현을 증가시키고 matrix metalloproteinase (MMP)-1의 발현을 감소시킬 뿐 아니라 elastase의 활성을 억제하여 주름 개선 기능을 갖는 것을 확인하였다. 또한 자외선으로부터 손상된 세포를 재생시키는 효과를 확인하였다. 이에 따라 낙타유를 함유한 리포좀은 항노화 소재로 활용할 수 있을 것으로 사료된다.

• Journal of Microbiology and Biotechnology
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• 제17권2호
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• pp.271-279
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• 2007

Black rice (Oryza sativa L. var. japonica) has been used in folk medicine in Asia. To understand the effects of black rice hydrolyzed peptides (BRP) from germinated black rice, we assessed the expression levels of about 20,000 transcripts in BRP-treated HaCaT keratinocytes using human 1A oligo microarray analysis. As a result, the BRP treatment showed a differential expression ratio of more than 2-fold: 745 were activated and 1,011 were repressed. One of the most interesting findings was a 2-fold increase in hyaluronan synthase 2 (HAS2) gene expression by BRP. Semiquantitative RT-PCR showed that BRP increased HAS2 mRNA in dose-dependent manners. ELISA showed that BRP effectively increased hyaluronan (HA) production in HaCaT keratinocytes.

• 한국미생물·생명공학회지
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• 제50권4호
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• pp.533-547
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• 2022

This study investigated the hair growth effect of Schisandra chinensis extract (TS-SC) and TS-SC fermented by Lactobacillus plantarum (TS-SCLF) on human dermal papilla cells (hDPCs). The production of vascular endothelial growth factor (VEGF), insulin-like growth factor 1 (IGF-1), keratinocyte growth factor/fibroblast growth factor 7 (KGF/FGF-7) and hepatocyte growth factor (HGF), transforming growth factor beta 1 (TGF-β1) were examined. The secretion rates of VEGF and KGF/FGF-7 were high in TS-SC, and the secretion rates of IGF-1 and HGF were high in TS-SCLF. TGF-β1 was inhibited in a concentration-dependent manner in all samples. Gene expression of VEGF, IGF-1, KGF, HGF and alkaline phosphatase, relevant to hair growth, were examined. The data revealed that TS-SC and TS-SCLF successfully promoted hair growth in hDPCs. The IGF-1 gene was expressed in a dose-dependent manner in TS-SCLF. These results indicate that TS-SC and TS-SCLF fermented extract effectively promoted hair growth and gene expression relevant to hair growth in hDPCs. Used in clinical trials the test substance 'CMK-LPF01' showed a statistically significant increase in the number of hairs at 8 weeks, 16 weeks, and 24 weeks compared to before product use, and a change in hair growth, a secondary efficacy evaluation variable. Through additional research in the future, it is expected that "CMK-LPF01" can be developed as a functional material that can help alleviate symptoms of hair loss.