The highly significant and early inhibition of extrinsic initiator caspase-8 at 1 and 3 h PI in the WT-infected cells compared to the lack of inhibition by the T3SS mutant 65ST indicates that the E. ictaluri T3SS acts to repress caspase-8 activity that would be induced by attachment of E. ictaluri to macrophage surface receptors.
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Early Intracellular Trafficking and Subsequent Activity of Programmed Cell Death in Channel Catfish Macrophages Infected with <i>Edwardsiella ictaluri</i>.
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