Host-pathogen interactions in Burkholderia infection

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Melioidosis is a fatal tropical disease caused by a bacterium Burkholderia pseudomallei. We found that when the bacterium infects macrophage-like cells in culture (that normally kills bacteria), the cells turn into a cell like an osteoclast, a cell that normally degrades bone. Since an osteoclast is unable to kill bacteria, we speculate that the bacterium subverts the macrophage differentiation pathway and directs the cells into a state where it is unable to attack the invading bacteria.