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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Biol+Blood+Marrow+Transplant
2016 ; 22
(5
): 825-33
Nephropedia Template TP
gab.com Text
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Twit Text #
English Wikipedia
Loss of T Follicular Helper Cells in the Peripheral Blood of Patients with
Chronic Graft-versus-Host Disease
#MMPMID26806586
Knorr DA
; Wang H
; Aurora M
; MacMillan ML
; Holtan SG
; Bergerson R
; Cao Q
; Weisdorf DJ
; Cooley S
; Brunstein C
; Miller JS
; Wagner JE
; Blazar BR
; Verneris MR
Biol Blood Marrow Transplant
2016[May]; 22
(5
): 825-33
PMID26806586
show ga
B cell antihost antibody production plays a central role in chronic
graft-versus-host disease (cGVHD). T follicular helper (TFH) cells drive B cell
responses and are implicated in this process. Given differences in cGVHD
incidence between umbilical cord blood (UCB) and adult donor transplant
recipients, we evaluated TFH cell reconstitution kinetics to define graft source
differences and their potential pathogenic role in cGVHD. Although we observed
significantly fewer TFH cells in the blood of UCB recipients (versus matched
related donors [MRD]) early after transplantation, by 1 year the numbers of TFH
cells were similar. Additionally, at both early (day 60) and late (1 year) time
points, TFH cell phenotype was predominantly central memory cells in both
cohorts. TFH cells were functional and able to produce multiple cytokines (INF-?,
TNF-?, IL-2, IL-17, and IL-21) after stimulation. In contrast to mouse models,
where an enhanced frequency of splenic TFH cells contributes to cGVHD, patients
with cGVHD showed significantly depleted circulating TFH cells after both UCB and
MRD transplantation. Low numbers of TFH cells early after UCB transplantation
could directly contribute to less cGVHD in this cohort. Additionally, systemic
therapy (including steroids and calcineurin inhibitors) may contribute to
decreases in TFH cells in patients with cGVHD. These data provide further
evidence supporting the importance of TFH cells in cGVHD pathogenesis.
|Adult
[MESH]
|Aged
[MESH]
|Animals
[MESH]
|Chronic Disease
[MESH]
|Cytokines/*blood/*immunology
[MESH]
|Female
[MESH]
|Follow-Up Studies
[MESH]
|Graft vs Host Disease/*blood/*immunology/pathology
[MESH]