Abstract
Background: Mycobacterium tuberculosis (MTB) and Mycobacterium avium (MA) are intracellular parasitic bacteria. The biological characteristics of MA and MTB are very similar and need to be identified.
Objective: The study aims to better understand how MTB survives in macrophages and the different pathogenic mechanisms of MTB and MA.
Methods: The Tandem Mass Tag (TMT) and liquid chromatography-tandem mass spectrometry (LCMS/ MS) were used for analysis of the differentially expressed proteins in MTB-infected macrophages and MA-infected macrophages.
Results: A total of 682 proteins were found to be differentially expressed in MTB-infected cells in comparison with MA-infected cells. Among these, 10 proteins (O60812, P06576, O43660-2, E9PL10, O00442, M0R050, Q9H8H0, Q9BSJ8, P41240 and Q8TD57-3) were down-regulated in MTB-infected cells, and M0R050, O00442, Q9H8H0, O60812 and O43660 are interactive proteins which participate in a multitude of cellular RNA processing.
Conclusion: The five down-regulated proteins (M0R050, O00442, Q9H8H0, O60812 and O43660) might repress the synthesis of some resistant proteins in MTB-infected cells to promote MTB survival in macrophages.
Keywords: Mycobacterium tuberculosis, Mycobacterium avium, TMT technology, survival, macrophage, proteomic.
Graphical Abstract
[http://dx.doi.org/10.1016/j.coi.2005.06.006]
[http://dx.doi.org/10.1186/s12889-018-6015-3] [PMID: 30223808]
[http://dx.doi.org/10.1111/imr.12265]
[http://dx.doi.org/10.1186/s12866-015-0366-z]
[http://dx.doi.org/10.1007/978-1-4614-4118-2_20PMID: 23402035]
[http://dx.doi.org/10.3389/fcimb.2017.00065] [PMID: 28337427]
[http://dx.doi.org/10.1093/abbs/gmx080] [PMID: 28910983]
[http://dx.doi.org/10.1155/2017/5103803] [PMID: 28573139]
[http://dx.doi.org/10.1007/s11940-018-0490-9] [PMID: 29492737]
[http://dx.doi.org/10.1016/j.vetmic.2010.06.011]
[http://dx.doi.org/10.1128/CMR.00055-15]