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Merck

Loss of L-selectin-guided CD8

Hepatology (Baltimore, Md.) (2017-05-26)
Vasantha L Kolachala, Sirish Palle, Ming Shen, Alayna Feng, Dmitry Shayakhmetov, Nitika A Gupta
ABSTRACT

Steatotic liver responds with increased hepatocellular injury when exposed to an ischemic-reperfusion insult. Increasing evidence supports the role of immune cells as key mediators of this injury in a normal (lean) state, but data about their role in a steatotic liver are practically nonexistent. The objective of the current study was to delineate the contribution of specific phenotypes of T cells and adhesion molecules in exacerbated cell death in steatotic liver injury. RNA sequencing was performed on isolated steatotic primary hepatocytes, and T-cell markers were assessed in hepatic lymphocytes after ischemia reperfusion injury (IRI) in high-fat diet (HFD)-fed mice. Cluster of differentiation 8 knockout (CD8 Blockade of CD8 and L-selectin, but not CD4, ameliorated hepatocellular injury, confirming that CD8