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Receptor for advanced glycation end products is detrimental during influenza A virus pneumonia

By Marieke A.D van Zoelen, Koenraad F. van der Sluijs, Ahmed Achouiti, Sandrine Florquin, Jennie M. Braun-Pater, Huan Yang, Peter P. Nawroth, Kevin J. Tracey, Angelika Bierhaus and Tom van der Poll


AbstractPneumonia caused by influenza A virus (IAV) can have devastating effects, resulting in respiratory failure and death. The idea that a new influenza pandemic might occur in the near future has triggered renewed interests in IAV infection. The receptor for advanced glycation end products (RAGE) is expressed on different cell types and plays a key role in diverse inflammatory processes. We here investigated the role of RAGE in the host response to IAV pneumonia using wild-type (wt) and RAGE deficient (−/−) mice. Whereas strong RAGE was constitutively expressed in the lungs of uninfected wt mice, in particular on endothelium, IAV pneumonia was associated with enhanced expression on endothelium and de novo expression on bronchial epithelium. Additionally, the high-affinity RAGE ligand high mobility group box 1 was upregulated during IAV pneumonia. RAGE−/− mice were relatively protected from IAV induced mortality and showed an improved viral clearance and enhanced cellular T cell response and activation of neutrophils. These data suggest that RAGE is detrimental during IAV pneumonia

Publisher: Elsevier Inc. Published by Elsevier Inc.
Year: 2009
DOI identifier: 10.1016/j.virol.2009.05.032
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