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2016 ; 35
(6
): 704-10
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B cells in transplantation
#MMPMID26996930
Dijke EI
; Platt JL
; Blair P
; Clatworthy MR
; Patel JK
; Kfoury AG
; Cascalho M
J Heart Lung Transplant
2016[Jun]; 35
(6
): 704-10
PMID26996930
show ga
B cell responses underlie the most vexing immunological barriers to organ
transplantation. Much has been learned about the molecular mechanisms of B cell
responses to antigen and new therapeutic agents that specifically target B cells
or suppress their functions are available. Yet, despite recent advances, there
remains an incomplete understanding about how B cell functions determine the fate
of organ transplants and how, whether or when potent new therapeutics should
optimally be used. This gap in understanding reflects in part the realization
that besides producing antibodies, B cells can also regulate cellular immunity,
contribute to the genesis of tolerance and induce accommodation. Whether
non-specific depletion of B cells, their progeny or suppression of their
functions would undermine these non-cognate functions and whether graft outcome
would suffer as a result is unknown. These questions were discussed at a
symposium on "B cells in transplantation" at the 2015 ISHLT annual meeting. Those
discussions are summarized here and a new perspective is offered.