Commonalities of Mycobacterium tuberculosis Transcriptomes in Response to Defined Persisting Macrophage Stresses

M. tuberculosis H37Rv was grown in vitro in five different conditions, including four stress conditions that could mimic what M. tuberculosis may experience in macrophages. The gene expression profiling was studied. Methods: Mycobacterium tuberculosis H37Rv strain was grown under 5 different conditions, in duplicate. RNAseq was performed. The gene expression was compared and Differential Expression was analyzed. Results: The gene expression profiling in microaerophilic and stationary phase conditions were the most similar while the profiling in acidic condition was the closest to exponential phase condition. An average 1050 genes were differentially transcribed in each stress condition except for the acidic stress, which had less than 200 genes differentially regulated. Overall design: M. tuberculosis H37Rv was grown in vitro in five different conditions, in duplicate.