Abstract
Chelerythrine (a natural quaternary benzophenanthridine alkaloid) is an extract from the roots of Chelidonium majus with potential antimycobacterial activity. To reveal the possible mechanism of action of chelerythrine against Mycobacterium tuberculosis (M. tuberculosis), commercial oligonucleotide microarrays were used to analyze the genome-wide transcriptional changes triggered by treatment with subinhibitory concentrations of chelerythrine. Quantitative real-time RT-PCR was performed for selected genes to verify the microarray results. We interpreted our microarray data using Agilent software. Analysis of the microarray data revealed that a total of 759 genes were differentially regulated by chelerythrine. Of these, 372 genes were upregulated, and 387 genes were downregulated. Some of the important genes that were significantly regulated are related to different pathways (such as urease), methoxy-mycolic acid synthase, surface-exposed lipids, the heat shock response, and protein synthesis. This genome-wide transcriptomics approach produced the first insights into the response of M. tuberculosis to a chelerythrine challenge.
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Acknowledgments
This work was supported by Important National Science, Technology Specific Projects (2008ZX10301), the Specialized Research Fund for the Doctoral Program of Higher Education (SRFDP) (No. 200801831051), the National Nature Science Foundation of China (No. 30871889), the Fund for Science and Technology Development of the Jilin Province, China (No. 200705233), and the Fundamental Research Funds for the Central Universities.
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Junchao Liang, Fanli Zeng, and Aizhen Guo contributed equally to this work.
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Liang, J., Zeng, F., Guo, A. et al. Microarray Analysis of the Chelerythrine-Induced Transcriptome of Mycobacterium tuberculosis . Curr Microbiol 62, 1200–1208 (2011). https://doi.org/10.1007/s00284-010-9837-5
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DOI: https://doi.org/10.1007/s00284-010-9837-5