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Zerumbone 처리에 따른 Helicobacter pylori의 단백질 비교분석

Comparative Proteome Analysis of Zerumbone-treated Helicobacter pylori

  • Kim, Sa-Hyun (Department of Clinical Laboratory Science, Semyung University)
  • 투고 : 2018.08.11
  • 심사 : 2018.08.30
  • 발행 : 2018.09.30

초록

Helicobacter pylori는 만성 위염, 위궤양 또는 위 선암을 비롯한 다양한 위장병의 원인균으로 알려져 있으며, 이 세균이 분비하는 cytotoxin-associated protein A (CagA), vacuolating cytotoxic protein A (VacA)와 같은 병원성 인자가 그 원인으로 알려져 있다. 본 연구에서는 zerumbone이 CagA, VacA를 비롯한 다양한 H. pylori의 병원성 인자들의 단백 발현양 변화에 정성적, 정량적으로 어떠한 영향을 미치는지 분석하였다. H. pylori 60190 (VacA 양성 / CagA 양성; Eastern type) 표준균주를 대상으로 하여 약 200개의 유의미한 단백을 선별한 후, 그 중에서 임상적으로 의의가 큰 13개 단백 분자에 대한 프로테옴 분석을 수행하였다. 이차원 전기 영동법(2 dimensional electrophoresis, 2-DE) 수행 후, 단백질 스팟의 정량적 측정에는 ImageMasterTM 2-DE Platinum 소프트웨어를 사용하였고, 단백 동정에는 matrix-assisted laser desorption/ionization-mass spectrometry (MALDI-TOF-MS)와 liquid chromatography-mass spectrometry/mass spectrometry (LC-MS/MS)를 사용하였다. 동정이 완료된 전체 단백 중에서 유의미한 변화를 보인 단백을 집중적으로 분석한 뒤에 필요에 따라 reverse transcription -polymerase chanin reaction을 수행하여 결과를 추가 검증하였다. 본 연구에서는 zerumbone이 보유한 새로운 약리학적 활성 기전을 스크리닝함으로써 향후 zerumbone이 H. pylori 감염증 치료제로서 어떠한 의미를 지니는지 규명하고자 하였다.

Helicobacter pylori is a causative organism of various gastrointestinal diseases, including chronic gastritis, gastric ulcer, or gastric adenocarcinoma. Pathogenic factors, such as cytotoxin-associated protein A (CagA) and vacuolating cytotoxic protein A (VacA), play a role. This study analyzed qualitatively and quantitatively the effects of zerumbone on the changes in the protein expression levels of various H. pylori proteins, including CagA and VacA. Approximately 200 significant proteins were screened for the H. pylori 60190 (VacA positive / CagA positive; Eastern type) strain, and proteomic analysis was performed on 13 protein molecules that were clinically significant. After two-dimensional electrophoresis (2-DE), $ImageMaster^{TM}$ 2-DE Platinum software was used for quantitative measurements of protein spots. Matrix-assisted laser desorption/ionization-mass spectrometry (MALDI-TOF-MS) and liquid chromatography-mass spectrometry/mass spectrometry (LC-MS/MS) were used for protein identification. After intensive analysis of the proteins that showed significant changes, a reverse transcription-polymerase chain reaction was performed as required to verify the results. In this study, the significance of zerumbone as a therapeutic agent for H. pylori infection was examined by screening a new pharmacological activity mechanism of zerumbone.

키워드

참고문헌

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피인용 문헌

  1. Zerumbone Inhibits Helicobacter pylori Urease Activity vol.26, pp.9, 2021, https://doi.org/10.3390/molecules26092663