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CD44 Disruption Attenuates Murine Hepatic Ischemia/Reperfusion Injury

By Min Sung Kim, Ki Ho Lee, Won Mee Lee, Jin Hyun Jun and Dong Hee Kim


Neutrophil adhesion and migration are critical in hepatic ischemia/reperfusion (I/R) injury. Despite very strong preclinical data, recent clinical trials failed to show a protective effect of anti-adhesion therapy in reperfusion injury. Therefore, the aim of this study was to assess the role of CD44 in neutrophil infiltration and liver injury from hepatic I/R. In this study, using a partial hepatic ischemic model in vivo, we determined the potential role of CD44 in neutrophil infiltration and liver injury from I/R. Reperfusion caused significant hepatocellular injury as it was determined by plasma ALT levels and liver histopathology. The injury was associated with a marked neutrophil recruitment and CD44 expression into the ischemic livers. Administration of anti-CD44 antibody to mice reduced the infiltration of neutrophil into the ischemic tissue, associated with liver function preservation. These results support crucial roles of CD44 in neutrophil recruitment and infiltration leading to liver damage in hepatic I/R injury. Moreover, they provide the rationale for targeting to CD44 as a potential therapeutic approach in liver I/R injury

Topics: Original Article
Publisher: The Korean Academy of Medical Sciences
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Provided by: PubMed Central

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