Neutrophils release extracellular DNA traps during storage of red blood cell units
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Neutrophils release extracellular DNA traps during storage of red blood cell units. / Fuchs, Tobias A; Alvarez, Javier J; Martinod, Kimberly; Bhandari, Ashish A; Kaufman, Richard M; Wagner, Denisa D.
In: TRANSFUSION, Vol. 53, No. 12, 01.12.2013, p. 3210-6.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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TY - JOUR
T1 - Neutrophils release extracellular DNA traps during storage of red blood cell units
AU - Fuchs, Tobias A
AU - Alvarez, Javier J
AU - Martinod, Kimberly
AU - Bhandari, Ashish A
AU - Kaufman, Richard M
AU - Wagner, Denisa D
N1 - © 2013 American Association of Blood Banks.
PY - 2013/12/1
Y1 - 2013/12/1
N2 - BACKGROUND: Blood transfusion is associated with an increased risk of organ damage, infection, and alloimmunity. Neutrophil extracellular traps (NETs) are extracellular chromatin fibers decorated with neutrophil granular proteins that have been linked to cytotoxicity, thrombosis, and autoimmunity. We questioned whether neutrophils in blood products release NETs during storage and thus could contribute to adverse reactions from blood transfusions.STUDY DESIGN AND METHODS: We analyzed supernatants and blood smears of human red blood cell (RBC) units that either were or were not leukoreduced before storage for markers of NETs.RESULTS: We identified extracellular DNA, which was associated with histones and myeloperoxidase, a marker of neutrophil granules, in supernatants and blood smears of nonleukoreduced RBC units. These markers of NETs were absent in leukoreduced RBC units. Importantly, NETs passed through blood transfusion filters and could therefore potentially be infused into patients.CONCLUSIONS: Our studies indicate that NETs are liberated during storage of nonleukoreduced RBC units. Future studies should address whether NETs in RBC units could potentially contribute to transfusion-associated complications.
AB - BACKGROUND: Blood transfusion is associated with an increased risk of organ damage, infection, and alloimmunity. Neutrophil extracellular traps (NETs) are extracellular chromatin fibers decorated with neutrophil granular proteins that have been linked to cytotoxicity, thrombosis, and autoimmunity. We questioned whether neutrophils in blood products release NETs during storage and thus could contribute to adverse reactions from blood transfusions.STUDY DESIGN AND METHODS: We analyzed supernatants and blood smears of human red blood cell (RBC) units that either were or were not leukoreduced before storage for markers of NETs.RESULTS: We identified extracellular DNA, which was associated with histones and myeloperoxidase, a marker of neutrophil granules, in supernatants and blood smears of nonleukoreduced RBC units. These markers of NETs were absent in leukoreduced RBC units. Importantly, NETs passed through blood transfusion filters and could therefore potentially be infused into patients.CONCLUSIONS: Our studies indicate that NETs are liberated during storage of nonleukoreduced RBC units. Future studies should address whether NETs in RBC units could potentially contribute to transfusion-associated complications.
KW - Blotting, Western
KW - DNA
KW - Erythrocytes
KW - Histones
KW - Humans
KW - Neutrophils
KW - Nucleosomes
U2 - 10.1111/trf.12203
DO - 10.1111/trf.12203
M3 - SCORING: Journal article
C2 - 23560771
VL - 53
SP - 3210
EP - 3216
JO - TRANSFUSION
JF - TRANSFUSION
SN - 0041-1132
IS - 12
ER -
