How RAGE Affects E. coli Pneumonia in Mice
Author Information
Author(s): Lasse Ramsgaard, Judson M. Englert, Michelle L. Manni, Pavle S. Milutinovic, Julia Gefter, Jacob Tobolewski, Lauren Crum, Gina M. Coudriet, Jon Piganelli, Ruben Zamora, Yoram Vodovotz, Jan J. Enghild, Tim D. Oury
Primary Institution: University of Pittsburgh School of Medicine
Hypothesis
Does the receptor for advanced glycation end-products (RAGE) influence lung inflammation during E. coli pneumonia?
Conclusion
Lack of RAGE in the lung does not protect against LPS-induced acute pulmonary inflammation, but reduces injury following live E. coli challenge.
Supporting Evidence
- RAGE KO mice had significantly less inflammation when challenged with E. coli compared to wild type mice.
- Most cytokine levels were lower in the BALF of RAGE KO mice after E. coli injury.
- Neither i.p. nor i.t. administration of mouse soluble RAGE attenuated the severity of E. coli injury in wild type mice.
Takeaway
This study found that mice without a specific receptor (RAGE) had less lung inflammation when infected with E. coli compared to normal mice.
Methodology
The study used wild type and RAGE knockout mice to assess inflammation after E. coli and LPS challenges.
Limitations
The study primarily focused on a single time point and specific bacterial challenges, which may not represent all forms of lung injury.
Participant Demographics
Only male C57BL/6 mice were used in the experiments.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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