Abstract

Klebsiella infection is widely acknowledged to inflict severe inflammatory damage in bovines. Herein, we demonstrate significant death of EpH4-Ev cells incubated with Klebsiella. And compelling evidence shows that Klebsiella infection increases interactions between the Receptor-interacting serine/threonine-protein kinase 1 (RIPK1) and RIPK3, which promotes phosphorylation of RIPK3 and MLKL to induce necroptosis. However, these changes can be partially reversed by taurine and Nec-1s. Moreover, using taurine and Nec-1s to partially inhibit necroptosis significantly reduce TNF-α, IL-1β and IL-6 levels and NAGase activity induced by Klebsiella infection. Taken together, taurine partially inhibits necroptosis induced by Klebsiella infection and hence alleviates inflammatory and injury in EpH4-Ev cells.

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