Targeting human macrophages for enhanced killing of intracellular XDR-TB and MDR-TB.

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29 Citations (Scopus)


Although many compounds have been described to inhibit the replication of drug-susceptible and drug-resistant strains of Mycobacterium tuberculosis, most of these studies only evaluate their in vitro activity. There is a lack of studies that show whether any of these agents can kill these organisms at the site where they normally reside post infection, namely, the macrophage of the lung parenchyma. It is the aim of this mini-review to identify agents that have been shown to enhance the killing of intracellular drug-susceptible, multidrug-resistant tuberculosis (MDR-TB) and extensively drug-resistant TB (XDR-TB) strains by non-killing macrophages. Because these agents appear to promote their activity by affecting the transport of K(+) and Ca(2+) from the phagolysosome containing the bacteria, and thereby promoting its acidification and activation of hydrolases that will eventually kill the organism, the authors suggest that compounds that are known to affect the transport of K(+) and Ca(2+) should be considered for possible activity against intracellular MDR- and XDR-TB.
Original languageEnglish
Pages (from-to)569-73
JournalInternational Journal of Tuberculosis and Lung Disease
Issue number5
Publication statusPublished - 1 Jan 2009


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