[Effects of Mycobacterium tuberculosis infection on the transcriptional expression of human macrophage gene encoding ion channels and related regulatory elements].

Expression microarray was employed in this study to investigate whether the ion channels and their regulatory elements encoding genes participate in the immune response to Mycobacterium tuberculosis infection. The results of a virulent strain were compared with those of the clinically isolated strains. The data demonstrate that K(+), Na(+), Ca(2+) and Cl(-) channels and their regulatory elements, such as the G protein, receptor and second messenger, protein kinase and protein phosphatase were involved in the immune reaction. The clinical strain affected more types of ion channels and respective regulatory elements. The data provides clues for further scrutiny into the role of ion channels and related elements in the interaction between Mycobacterium tuberculosis and host macrophage.

[Differential expression of human macrophage genes encoding cytokines and their regulatory elements after Mycobacterium tuberculosis infection].

To investigate whether the genes encoding cytokines and their regulatory elements participated in the immune response to Mycobacterium tuberculosis infection. Expression microarray was employed to compare the avirulent strain and clinically isolated strains infection induced macrophage cytokine differential expression. Results were cytokines IFN, TNF, TGF, IL and their regulatory elements are involved in the immune reaction. IL-19 was first reported to be involved in the anti-Mtb immunity. Relative expression level of theses factors before and after infection were assayed too. The data provides clues for further scrutinize the role of cytokines and related elements in the interaction between Mycobacterium tuberculosis and host macrophage.