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Plague
Studies from R.T. Robinson and co-researchers yield new data on plague
December 23rd, 2008
"At the temperature of its flea vector (similar to 20-30 degrees C), the causative agent of plague, Yersinia pestis, expresses a profile of genes distinct from those expressed in a mammalian host (37 degrees C). When dendritic cells (DC) are exposed to Y. pestis grown at 26 degrees C (Y. pestis-26 degrees), they secrete copious amounts of IL-12p40 homodimer (IL-12(p40)(2))," scientists in the United States report. "In contrast, when DCs are exposed to Y. pestis grown at 37 degrees C (Y. pestis-37 degrees), they transcribe very little IL-12p40, which is secreted as IL-12p40 monomer (IL-12p40). Y. pestis-26 degrees also induces migration of DCs to the homeostatic...
Source: TB & Outbreaks Week (2008-12-23)
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