| Literature DB >> 29991496 |
Rick Kapur1, Michael Kim2,3, Johan Rebetz1, Björn Hallström4, Jonas T Björkman5, Alisa Takabe-French2,3, Noel Kim2,3, Jonathan Liu2,3, Shanjeevan Shanmugabhavananthan2,3, Stefan Milosevic2,3, Mark J McVey2,3,6,7,8,9, Edwin R Speck2,3, John W Semple1,2,3,6,10,11,12.
Abstract
Transfusion-related acute lung injury (TRALI) is a syndrome of respiratory distress upon blood transfusion and is the leading cause of transfusion-related fatalities. Whether the gut microbiota plays any role in the development of TRALI is currently unknown. We observed that untreated barrier-free (BF) mice suffered from severe antibody-mediated acute lung injury, whereas the more sterile housed specific pathogen-free (SPF) mice and gut flora-depleted BF mice were both protected from lung injury. The prevention of TRALI in the SPF mice and gut flora-depleted BF mice was associated with decreased plasma macrophage inflammatory protein-2 levels as well as decreased pulmonary neutrophil accumulation. DNA sequencing of amplicons of the 16S ribosomal RNA gene revealed a varying gastrointestinal bacterial composition between BF and SPF mice. BF fecal matter transferred into SPF mice significantly restored TRALI susceptibility in SPF mice. These data reveal a link between the gut flora composition and the development of antibody-mediated TRALI in mice. Assessment of gut microbial composition may help in TRALI risk assessment before transfusion.Entities:
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Year: 2018 PMID: 29991496 PMCID: PMC6039664 DOI: 10.1182/bloodadvances.2018018903
Source DB: PubMed Journal: Blood Adv ISSN: 2473-9529