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Cardiovascular & Hematological Agents in Medicinal Chemistry


ISSN (Print): 1871-5257
ISSN (Online): 1875-6182

Developing Specific Therapeutic Strategies for Transfusion-Related Acute Lung Injury. An Overview of Potentially Useful Animal Models

Author(s): Alexander P.J. Vlaar, Machteld M. Zweers, Marcus J. Schultz and Nicole P. Juffermans

Volume 5 , Issue 4 , 2007

Page: [319 - 326] Pages: 8

DOI: 10.2174/187152507782109845

Price: $65


Transfusion-related (TR)- acute lung injury (ALI) is the leading cause of transfusion-related morbidity and mortality. The pathogenesis of TRALI is thought to be a “two hit”-entity: the “first hit” is (any) proinflammatory pulmonary condition (e.g., pneumonia, sepsis or lung contusion) resulting in activation of lung endothelium with sequestration of polymorphonuclear neutrophils - the “second hit” is provided by transfusion of a blood product. Either antibodies against neutrophils are thought to be implicated in the activation of the sequestrated neutrophils, or bioactive lipids (which accumulate during storage of blood products) induce the “second hit”, finally resulting in lung injury. Preventive measures do not prevent all TRALI cases. Also, TRALI is most probably underdiagnosed. In this review, we call for the development of therapeutic approaches for this potentially life-threatening disease. Several interventions which are beneficial in ALI and may also be beneficial in TRALI are discussed. The application of these interventions requires the development of clinically relevant TRALI animal models. We discuss the present TRALI animal models and their shortcomings and propose future animal models, in which clinically relevant “first hits” can be applied, thereby imitating the complex clinical situation.

Keywords: TRALI, transfusion, acute lung injury, animal models, lysophosphocholines, HLA, HNA

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