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2014 ; 54
(4
): 1059-70
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Mononuclear cells from a rare blood donor, after freezing under good
manufacturing practice conditions, generate red blood cells that recapitulate the
rare blood phenotype
#MMPMID24004289
Masiello F
; Tirelli V
; Sanchez M
; van den Akker E
; Gabriella G
; Marconi M
; Villa MA
; Rebulla P
; Hashmi G
; Whitsett C
; Migliaccio AR
Transfusion
2014[Apr]; 54
(4
): 1059-70
PMID24004289
show ga
BACKGROUND: Cultured red blood cells (cRBCs) from cord blood (CB) have been
proposed as transfusion products. Whether buffy coats discarded from blood
donations (adult blood [AB]) may be used to generate cRBCs for transfusion has
not been investigated. STUDY DESIGN AND METHODS: Erythroid progenitor cell
content and numbers and blood group antigen profiles of erythroblasts (ERYs) and
cRBCs generated in human erythroid massive amplification (HEMA) culture by CB
(n?=?7) and AB (n?=?33, three females, three males, one AB with rare blood
antigens cryopreserved using CB protocols) were compared. RESULTS: Variability
was observed both in progenitor cell content (twofold) and number of ERYs
generated (1?log) by CB and AB in HEMA. The average progenitor cell contents of
the subset of AB and CB analyzed were similar. AB generated numbers of ERYs three
times lower (p?0.01) than CB in HEMA containing fetal bovine serum but similar
to CB in HEMA containing human proteins. Female AB contained two times fewer
(p?0.05) erythroid progenitor cells but generated numbers of ERYs similar to
those generated by male AB. Cryopreserved AB with a rare blood group phenotype
and shipped to another laboratory generated great numbers of ERYs, 90% of which
matured into cRBCs. Blood group antigen expression was consistent with the donor
genotype for ERYs generated both by CB and AB but concordant with that of native
RBCs only for cells derived from AB. CONCLUSION: Buffy coats from regular donors,
including a donor with rare phenotypes stored under conditions established for
CB, are not inferior to CB for the generation of cRBCs.