Friday, May 25, 2012

More on Transfusion-related Acute Lung Injury


Curr Pharm Des. 2012 May 22. [Epub ahead of print]

Prevention of Non-immune Mediated Transfusion-related Acute Lung Injury; from Blood Bank to Patient.

Source

Sanquin Research, Dept. of Blood Cell Research, Plesmanlaan 125, 1066 CX Amsterdam, The Netherlands. d.dekorte@sanquin.nl.

Abstract

Transfusion-related acute lung injury (TRALI) is a severe form of pulmonary insufficiency induced by transfusion. TRALI is the leading cause of transfusion-related death, and is caused by the infusion of either anti-leukocyte antibodies in plasma containing blood products or neutrophil priming substances that accumulate during storage of cellular blood products. Among these neutrophil priming substances are bioactive lipids, such as lysophosphatidylcholines (lysoPCs) and arachidonic acid, soluble CD40L (sCD40L) and possibly other, as yet unidentified substances. The accumulation of these substances during cellular blood product storage and their role in the induction of "non-immune mediated" TRALI pathogenesis are highly relevant for the current debate of the use of longer vs. shorter stored blood products. In this review, the accumulation of these different substances during storage, as well as their mode of action in inducing TRALI are discussed. In addition, different improvements in current blood banking procedures to prevent TRALI due to these non-immune mediators will be proposed.

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