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Sökning: WFRF:(Rondina Matthew T)

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1.
  • Kapur, Rick, et al. (författare)
  • Elevation of C-reactive protein levels in patients with transfusion-related acute lung injury
  • 2016
  • Ingår i: Oncotarget. - Impact Journals, LLC. - 1949-2553. ; 7:47, s. 78048-78054
  • Tidskriftsartikel (refereegranskat)abstract
    • Transfusion-related acute lung injury (TRALI) is the leading cause of transfusionrelated fatalities and is characterized by the onset of acute respiratory distress within six hours following blood transfusion. In most cases, donor antibodies are suggested to be involved, however, the pathogenesis is poorly understood. A two-hit model is generally assumed to underlie TRALI pathogenesis where the first hit consists of a patient predisposing factor such as inflammation and the second hit is due to donor antibodies present in the transfused blood. We recently demonstrated that the acute phase protein C-reactive protein (CRP) could enhance murine anti-major histocompatibility complex (MHC) class I-mediated TRALI. Whether CRP is increased in human TRALI patients which would support its role as a risk factor for human TRALI, is currently unknown. For that purpose, we measured CRP levels in the plasma of human TRALI patients and found CRP levels to be significantly elevated compared to transfused control patients. These data support the notion that CRP may be a novel first hit risk factor in human TRALI and that modulation of CRP levels could be an effective therapeutic strategy for this serious adverse event of transfusion.
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3.
  • Kapur, Rick, et al. (författare)
  • T regulatory cells and dendritic cells protect against transfusion-related acute lung injury via IL-10
  • 2017
  • Ingår i: Blood. - American Society of Hematology. - 1528-0020. ; 129:18, s. 2557-2569
  • Tidskriftsartikel (refereegranskat)abstract
    • Transfusion-related acute lung injury (TRALI) is the leading cause of transfusion-related fatalities and is characterized by acute respiratory distress following blood transfusion. Donor antibodies are frequently involved; however, the pathogenesis and protective mechanisms in the recipient are poorly understood, and specific therapies are lacking. Using newly developed murine TRALI models based on injection of anti-major histocompatibility complex class I antibodies, we found CD4+CD25+FoxP3+ T regulatory cells (Tregs) and CD11c+ dendritic cells (DCs) to be critical effectors that protect against TRALI. Treg or DC depletion in vivo resulted in aggravated antibody-mediated acute lung injury within 90 minutes with 60% mortality upon DC depletion. In addition, resistance to antibody-mediated TRALI was associated with increased interleukin-10 (IL-10) levels, and IL-10 levels were found to be decreased in mice suffering from TRALI. Importantly, IL-10 injection completely prevented and rescued the development of TRALI in mice and may prove to be a promising new therapeutic approach for alleviating lung injury in this serious complication of transfusion.
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