Unconventional RORγt+ T Cells Drive Hepatic Ischemia Reperfusion Injury

Unconventional RORγt+ T cells drive hepatic ischemia reperfusion injury.

An emerging body of evidence suggests a pivotal role of CD3(+) T cells in mediating early ischemia reperfusion injury (IRI). However, the precise phenotype of T cells involved and the mechanisms underlying such T cell-mediated immune responses in IRI, as well as their clinical relevance, are poorly understood. In this study, we investigated early immunological events in a model of partial warm ...

Unconventional RORgt T Cells Drive Hepatic Ischemia Reperfusion Injury

Hepatic ischemia-reperfusion injury.

24 Interferon regulatory factor-1 (IRF1) is a nuclear transcription factor that induces inflammatory 25 cytokine mediators and contributes to hepatic ischemia-reperfusion injury (I/R). Currently, no 26 strategies to mitigate IRF1-mediated liver damage exist. Interferon regulatory factor 2 (IRF2) is a 27 structurally similar endogenous protein that competes with IRF1 for DNA binding sites in IRF...

NKT cells are important mediators of hepatic ischemia-reperfusion injury

INTRODUCTION IRI results from the interruption then reinstatement of an organ's blood supply, and this poses a significant problem in liver transplantation and resectional surgery. In this paper, we explore the role T cells play in the pathogenesis of this injury. MATERIALS & METHODS We used an in vivo murine model of warm partial hepatic IRI, genetically-modified mice, in vivo antibody deple...

Peroxynitrite attenuates hepatic ischemia-reperfusion injury.

In the present study, we examined the effects of peroxynitrite on reperfusion injury using a rat model of hepatic ischemia-reperfusion (HI/R). The left and median lobes of the liver were subjected to 30 min of ischemia, followed by 4 h of reperfusion. Groups A and B rats were sham-operated controls that received vehicle or peroxynitrite; groups C and D rats were subjected to HI/R and received p...