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2016 ; 213
(6
): 1095-111
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Dynamic changes in Id3 and E-protein activity orchestrate germinal center and
plasma cell development
#MMPMID27217539
Gloury R
; Zotos D
; Zuidscherwoude M
; Masson F
; Liao Y
; Hasbold J
; Corcoran LM
; Hodgkin PD
; Belz GT
; Shi W
; Nutt SL
; Tarlinton DM
; Kallies A
J Exp Med
2016[May]; 213
(6
): 1095-111
PMID27217539
show ga
The generation of high-affinity antibodies requires germinal center (GC)
development and differentiation of long-lived plasma cells in a multilayered
process that is tightly controlled by the activity of multiple transcription
factors. Here, we reveal a new layer of complexity by demonstrating that dynamic
changes in Id3 and E-protein activity govern both GC and plasma cell
differentiation. We show that down-regulation of Id3 in B cells is essential for
releasing E2A and E2-2, which in a redundant manner are required for
antigen-induced B cell differentiation. We demonstrate that this pathway controls
the expression of multiple key factors, including Blimp1, Xbp1, and CXCR4, and is
therefore critical for establishing the transcriptional network that controls GC
B cell and plasma cell differentiation.