• 제목/요약/키워드: proteomic

검색결과 504건 처리시간 0.031초

결핵 진단액(Purified Protein Derivative)의 단백질체 분석 (Proteomic Dissection of Diagnostics (Purified Protein Derivative) for Tuberculosis)

  • 조윤상
    • 한국보건교육건강증진학회:학술대회논문집
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    • 한국보건교육건강증진학회 2005년도 제30회 보건학종합학술대회
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    • pp.234-243
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    • 2005
  • 상당히 성공적인 사람병원체인 결핵균을 Robert Koch가 발견한 이래, 결핵 방제의 상당한 진보에도 불구하고, 결핵의 발생은 현재까지 계속되어오고 있다(Tiruviluamala and Reichman 2002). 그러므로, 완전한 민감성과 특이성을 갖는 신속한 진단방법이 결핵과 결핵의 잠복감염을 진단하는데 요구되어지며(Tiruviluamala and Reichman 2002), 계속적으로 결핵균과 BCG의 유전체와 단백질체 연구를 통하여 결핵 방제수단이 발전되어질 것이다 (Jungblut et al. 1999). 본 연구는 PPD가 결핵을 진단하는 특이한 항원만으로 정확하게 조화를 이루고 있지 않다는 것을 보여주었으며, 그것의 역가는 결론적으로 생물학적으로 평가되어져야 하지만, PPD의 제조는 단백질체 분석 기법에 의해 분석되고 표준화될 수 있음을 보여주었다. 이를 통하여 결핵 피내진단의 일괄된 결과를 위해 PPD 사용 전에 이와같은 단백질체 분석기법을 적용할 수 있을 것으로 사료되며, 본 연구에서 밝혀진 특이 항원은 새로운 피내진단항원으로 적용될 수 있을 것으로 사료된다.

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Massive Identification of Cancer-Specific Nucleic Acid Ligands

  • Lee, Young Ju;Lee, Seong-Wook
    • Genomics & Informatics
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    • 제3권2호
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    • pp.77-80
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    • 2005
  • Targeting of complex system such as human cells rather than biochemically pure molecules will be a useful approach to massively identify ligands specific for the markers associated with human disease such as cancer and simultaneously discover the specific molecular markers. In this study, we developed in vitro selection method to identify nuclease-resistant nucleic acid ligands called RNA aptamers that are specific for human cancer cells. This method is based on the combination of the cell-based selection and subtractive systematic evolution of ligands by exponential enrichment (SELEX) method. These aptamers will be useful for cancer-specific ligands for proteomic research to identify cancer-specific molecular markers as well as tumor diagnosis and therapy.

Affinity Separations Using Microfabricated Microfluidic Devices: In Situ Photopolymerization and Use in Protein Separations

  • Chen Li;Lee, Wen-Chien;Lee, Kelvin H.
    • Biotechnology and Bioprocess Engineering:BBE
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    • 제8권4호
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    • pp.240-245
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    • 2003
  • The use of microfabricated microfluidic devices offers significant advantages over current technologies including fast analysis time and small reagent requirements. In the context of proteomic research, the possibility of using affinity-based separations for prefractionation of samples using microfluidic devices has significant potential. We demonstrate the use of microscale devices to achieve affinity separations of proteins using a device fabricated from borosilicate glass wafers. Photolithography and wet etching are used to pattern individual glass wafers and the wafers are fusion bonded at 650$^{\circ}C$ to obtain enclosed channels. A polymer has been successfully polymerized in situ and used either as a frit for packing beads or, when derivatized with Cibacron Blue 3GA, as a separation matrix. Both of these technologies are based on in situ UV photopolymerization of glycidyl methacrylate (GMA) and trimethylolpropane trimethacrylate (TRIM) in channels.

Interaction Proteome Analysis of Xanthomonas Hrp Proteins

  • Jang, Mi;Park, Byoung-Chul;Lee, Do-Hee;Bae, Kwang-Hee;Cho, Sa-Yeon;Park, Hyun-Seok;Lee, Baek-Rak;Park, Sung-Goo
    • Journal of Microbiology and Biotechnology
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    • 제17권2호
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    • pp.359-363
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    • 2007
  • Because of the importance of the type III protein-secretion system in bacteria-plant interaction, its function in bacterial pathogenesis of plants has been intensively studied. To identity bacterial proteins interacting with Xanthomonas hrp gene products that are involved in pathogenicity, we performed the glutathione-bead binding analysis of Xanthomonas lysates containing GST-tagged Hrp proteins. Analysis of glutathione-bead bound proteins by 1-DE and MALDI-TOF has demonstrated that Avr proteins, RecA, and several components of the type III secretion system interact with HrpB protein. This proteomic approach could provide a powerful tool in finding interaction partners of Hrp proteins whose roles in host-pathogen interaction need further studies.

What Can Proteomics Tell Us about Tuberculosis?

  • Susana Flores-Villalva;Elba Rogriguez-Hernandez;Yesenia Rubio-Venegas;Jorge Germinal Canto-Alarcon;Feliciano Milian-Suazo
    • Journal of Microbiology and Biotechnology
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    • 제25권8호
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    • pp.1181-1194
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    • 2015
  • Tuberculosis (TB) is an infectious disease transmitted by aerosol droplets and characterized by forming granulomatous lesions. Although the number of people infected in the population is high, the vast majority does not exhibit symptoms of active disease and only 5-10% develop the disease after a latent period that can vary from weeks to years. The bases of the immune response for this resistance are unknown, but it depends on a complex interaction between the environment, the agent, and the host. The analysis of cellular components of M. tuberculosis shows important host-pathogen interactions, metabolic pathways, virulence mechanisms, and mechanisms of adaptation to the environment. However, the M. tuberculosis proteome still remains largely uncharacterized in terms of virulence and pathogenesis. Here, we summarize some of the major proteomic studies performed to scrutinize all the mycobacterial components.

프로테오믹스를 이용한 탄저균 아포 감염에 대한 바이오마커 탐색 (Discovery of Protein Biomarkers for Infected Bacillus anthracis Spores in Using Proteomic Analysis)

  • 서귀문;남덕화;오광근;김성주;김지천;채영규
    • 한국군사과학기술학회지
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    • 제7권1호
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    • pp.77-81
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    • 2004
  • The etiological agent is Bacillus anthracis, a gram-positive rod-shaped bacterium able to form spores. In order to elucidate the mechanism of infecttion on human macrophage cells, we performed two-dimensional electrophoresis and MALDI-TOF analysis using the infected human macrophage cells with the spores of B. anthracis Sterne of inactivated B. anthracis Sterne. We identified 9 proteins which related to the infection of Bacillus anthracis spores on human macrophage cells at the early stage events. Maybe nine proteins will be bio-markers and vaccine candidates to the Bacillus anthracis spore infection.

Identification of meat Quality related genes in Korean Native Chicken using Proteomics

  • Jung, Kie-Chul;Park, Kang-Duk;Jang, Byoung-Gui;Sang, Byung-Don;Lee, Jun-Heon
    • 한국가금학회:학술대회논문집
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    • 한국가금학회 2003년도 제20차 정기총회 및 학술발표회
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    • pp.129-130
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    • 2003
  • 본 연구는 proteomics의 방법을 이용하여 가금의 육질과 관련된 단백질을 찾고자 수행하였다. 인삼부산물 추출액을 급여한 실용 재래닭에서 육질과 관련된 것으로 추정되는 후보 단백질들이 선발되었으며, 이 결과는 가금의 육질을 향상시키는 단백질 Marker로서 이용될 수 있을 뿐만 아니라 현재까지 밝혀지지 않은 가금의 2D map을 만드는데 역시 중요하게 이용될 수 있다.

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Recent Advances of MALDI-Mass Spectrometry Imaging in Cancer Research

  • Jung, Joohee
    • Mass Spectrometry Letters
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    • 제10권3호
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    • pp.71-78
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    • 2019
  • For several decades, cancer has been the primary cause of mortality worldwide. New diagnosis and regimens have been developed to improve the chemotherapeutic efficacy and the quality of life of the patients. However, cancer tissues are complex and difficult to assess. Understanding the various properties of the tumor and its environment is crucial for cancer and pharmaceutical research. Several analytical techniques have been providing new insights into cancer research. Recently, matrix-assisted laser desorption ionization (MALDI)-mass spectrometry imaging (MSI), an advanced analytical technique, has been applied to translational research. Proteomic and lipidomic profiling obtained by MALDI-MSI has been critical for biomarker discovery and for monitoring heterogenous tumor tissues. In this review, we discuss technical approaches, benefits and recent applications of MALDI-MSI as a valuable tool in cancer research, namely for diagnosis, therapy, prognosis.

A chemical proteomic approach for in vivo evaluation of CCl4 effect on the acute serum proteins.

  • Uhm, Young-Ho;Kim, Young-Doo;Seo, Eun-Seok;Kang, Tae-Hyuk;Kang, Dong-Hoon;Soh, Yun-Jo;Kang, Chul-Hun
    • 대한약학회:학술대회논문집
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    • 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.1
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    • pp.254.1-254.1
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    • 2003
  • CCl4 has been known as typical chemical which induce acute hepatitis accompanying increase in the levels of acute phase proteins in serum. In this study, after acute liver damage was induced by CCl4 in Sprague-Dawley rats, the levels of serum acute phase proteins were examined using 2-dimensional electrophoresis and lactic dehydrogenase (LDH), alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels in blood were also examined at 1, 2, 3 days after the induction to confirm acute hepatitis. (omitted)

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