Microbiology and Biotechnology Letters (한국미생물·생명공학회지)

The Korean Society for Microbiology and Biotechnology (한국미생물·생명공학회)
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Comparative Transcriptome Analysis of Zerumbone-Treated Helicobacter pylori

Zerumbone 처리 헬리코박터 파이로리균의 전사체 분석 비교

  • Woo, Hyun Jun (Department of Clinical Laboratory Science, Semyung University) ;
  • Yang, Ji Yeong (Division of Crop Foundation, National Institute of Crop Science (NICS), Rural Development Administration (RDA)) ;
  • Kim, Sa-Hyun (Department of Clinical Laboratory Science, Semyung University)
  • 우현준 (세명대학교 임상병리학과) ;
  • 양지영 (농촌진흥청 기능성작물부) ;
  • 김사현 (세명대학교 임상병리학과)
  • Received : 2022.02.19
  • Accepted : 2022.06.07
  • Published : 2022.06.28
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Abstract

Helicobacter pylori (H. pylori) establishes infection in the human gastric mucosa for a long time and causes severe gastric diseases such as peptic ulcer and gastric cancer. When H. pylori is exposed to the antibacterial agents or inhibitors, the expression of pathogenic associated genes could be altered. In this study, we analyzed the transcriptional changes of H. pylori genes induced by zerumbone treatment. RNA expression changes were analyzed using next-generation sequencing (NGS), and then reverse transcription-polymerase chain reaction (RT-PCR) was performed to verify the results. As a result of NGS analysis, a total of 23 out of 1,632 genes were differentially expressed by zerumbone treatment. RT-PCR confirmed that zerumbone treatment regulated the expression level of 14 genes. Among the genes associated with DNA replication, transcription, virulence factors and T4SS components, 10 genes (dnaE, dnaQ, rpoA, rpoD, secA, flgE, flhA, virB5, virB8 and virB9) were significantly down-regulated and 4 genes (flaA, flaB, virB4 and virD4) were up-regulated. The results of our current study imply that zerumbone might be a potential therapeutic agent for H. pylori infection by regulating factors related to various H. pylori pathogenicity.

본 연구에서는 제럼본에 처리에 의해 유도된 H. pylori 유전자의 전사적 변화를 분석하였다. NGS를 사용하여 RNA 발현 변화를 분석한 다음 그 결과를 검증하기 위해 RT-PCR을 수행하였다. NGS 분석 결과, 1,632개의 유전자 중 총 23개가 제럼본 처리에 의해 유의하게 발현이 변화된 특이발현 유전자로 분석되었다. DNA 복제와 전사, 병원성 인자 및 T4SS 성분과 관련된 유전자 중 10개는 현저하게 하향 조절되었고 5개는 상향 조절되었다. RT-PCR을 이용하여 유전자의 발현 수준을 재확인하였고 그 결과, 14개 유전자에서 NGS와 동일하게 발현 양상이 변화하였다. RT-PCR은 제럼본 처리에 의해 10개의 유전자(dnaE, dnaQ, rpoA, rpoD, secA, flgE, flhA, virB5, virB8, virB9)의 발현 감소와 4개의 유전자(flaA, flaB, virB4, virD4)의 발현 증가를 보였다. 이러한 본 연구의 결과는 제럼본이 다양한 H. pylori의 병원성과 관련된 인자들을 조절함으로써 H. pylori 감염의 잠재적인 치료제가 될 수 있음을 시사한다.

Keywords

Acknowledgement

This paper was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (Ministry of Sciences and ICT) (No. 2019R1G1A1100451).

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