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Dendritic cells protect against acute pancreatitis
Date:11/22/2011

bladder, limiting alcohol intake or prescription medication.

Dendritic cells in the body have emerged as important cellular mediators of inflammation. Previous studies by NYU Langone researchers and others have shown the ability of dendritic cells in the body to suppress inflammation in a number of organ-specific inflammatory conditions including liver injury. Upon exposure to inflammation, dendritic cells suppress inflammation by activating an immune response. However, the cellular regulation of acute pancreatitis was not completely understood until now.

In the new study, researchers induced mice models with acute pancreatitis. As a result, the level of dendritic cells in the pancreas increased by two-fold. This observation identified the innate immune system response of dendritic cells to the excessive swelling and inflammation of the pancreas gland. In addition, researchers tested the effects of dendritic cell depletion in acute pancreatitis mice models. Their experiments showed mice with depleted dendritic cell levels developed pancreatic necrosis and died within four days. Dendritic cell depletion was also associated with a higher infiltration of white blood cells and inflammation markers. The negative effects of dendritic cell depletion experiments show the critical protective role these cells play in pancreatic organ survival.

"We now have a greater understanding of dendritic cells, the key cellular mediators of inflammation, during dangerous acute pancreatitis. These cells play a central role in acute pancreatitis and are required for the pancreas' viability," said Dr. Miller, a member of the NYU Cancer Institute. "Our novel findings show depletion of dendritic cells result in the massive increase in severe pancreas inflammation, injury and organ destruction. We are now one step closer to more effective treatments for this harmful human condition."

The study suggests dendritic cells in the pancreas as new therapeutic ta
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Contact: Lauren Woods
lauren.woods@nyumc.org
212-404-3555
NYU Langone Medical Center / New York University School of Medicine
Source:Eurekalert

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