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2014 ; 20
(11
): 1861-4
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Prognostic biomarkers for acute graft-versus-host disease risk after
cyclophosphamide-fludarabine nonmyeloablative allotransplantation
#MMPMID25017764
Nelson RP Jr
; Khawaja MR
; Perkins SM
; Elmore L
; Mumaw CL
; Orschell C
; Paczesny S
Biol Blood Marrow Transplant
2014[Nov]; 20
(11
): 1861-4
PMID25017764
show ga
Five candidate plasma biomarkers (suppression of tumorogenesis 2 [ST2],
regenerating islet-derived-3? [REG3?], elafin, tumor necrosis factor receptor 1
[TNFR1], and soluble IL-2 receptor-alpha [sIL2R?]) were measured at specific time
points after cyclophosphamide/fludarabine-based nonmyeloablative
allotransplantation (NMAT) in patients who did or did not develop acute
graft-versus-host disease (aGVHD). Plasma samples from 34 patients were analyzed
at days +7, +14, +21, and +30. At a median follow-up of 358 days, 17 patients had
experienced aGVHD with a median time to onset at day +36. Risk of aGVHD was
associated with elevated plasma ST2 concentrations at day +7 (c-statistic = .72,
P = .03), day +14 (c-statistic = .74, P = .02), and day +21 (c-statistic = .75, P
= .02); elevated plasma REG3? concentrations at day +14 (c-statistic = .73, P =
.03), day +21 (c-statistic = .76, P = .01), and day +30 (c-statistic = .73, P =
.03); and elevated elafin at day +14 (c-statistic = .71, P = .04). Plasma
concentrations of TNFR1 and sIL2R? were not associated with aGVHD risk at any of
the time points studied. This study identified ST2, REG3?, and elafin as
prognostic biomarkers to evaluate risk of aGVHD after
cyclophosphamide/fludarabine-based NMAT. These results need to be confirmed in an
independent validation cohort.