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- W2337474141 abstract "Drug-resistant bacteria represent a significant global threat. Given the dearth of new antibiotics, host-directed therapies (HDTs) are especially desirable. As IFN-gamma (IFNγ) plays a central role in host resistance to intracellular bacteria, including Mycobacterium tuberculosis, we searched for small molecules to augment the IFNγ response in macrophages. Using an interferon-inducible nuclear protein Ipr1 as a biomarker of macrophage activation, we performed a high-throughput screen and identified molecules that synergized with low concentration of IFNγ. Several active compounds belonged to the flavagline (rocaglate) family. In primary macrophages a subset of rocaglates 1) synergized with low concentrations of IFNγ in stimulating expression of a subset of IFN-inducible genes, including a key regulator of the IFNγ network, Irf1; 2) suppressed the expression of inducible nitric oxide synthase and type I IFN and 3) induced autophagy. These compounds may represent a basis for macrophage-directed therapies that fine-tune macrophage effector functions to combat intracellular pathogens and reduce inflammatory tissue damage. These therapies would be especially relevant to fighting drug-resistant pathogens, where improving host immunity may prove to be the ultimate resource." @default.
- W2337474141 created "2016-06-24" @default.
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- W2337474141 date "2016-04-01" @default.
- W2337474141 modified "2023-09-25" @default.
- W2337474141 title "Fine-tuning of macrophage activation using synthetic rocaglate derivatives" @default.
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- W2337474141 doi "https://doi.org/10.1038/srep24409" @default.
- W2337474141 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/4834551" @default.
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