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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 Immunology
2016 ; 148
(3
): 253-65
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Murine Sertoli cells promote the development of tolerogenic dendritic cells: a
pivotal role of galectin-1
#MMPMID26878424
Gao J
; Wang X
; Wang Y
; Han F
; Cai W
; Zhao B
; Li Y
; Han S
; Wu X
; Hu D
Immunology
2016[Jul]; 148
(3
): 253-65
PMID26878424
show ga
Sertoli cells (SCs) possess inherent immunosuppressive properties and are major
contributors to the immunoprivileged status of mammalian testis. SCs have been
reported to inhibit the activation of B cells, T cells and natural killer cells
but not dendritic cells (DCs). Herein, we present evidence that co-culture with
SCs results in a persistent state of DC immaturity characterized by
down-regulation of the surface molecules I-A/E, CD80, CD83, CD86, CCR7 and CD11c,
as well as reduced production of pro-inflammatory cytokines. SC-conditioned DCs
(SC-DCs) displayed low immunogenicity and enhanced immunoregulatory functions,
including the inhibition of T-cell proliferation and the promotion of Foxp3(+)
regulatory T-cell development. Mechanistically, the activation of p38,
extracellular signal-regulated kinase 1/2, and signal transducer and activator of
transcription 3 was suppressed in SC-DCs. More importantly, we demonstrate that
galectin-1 secreted by SCs plays a pivotal role in the differentiation of
functionally tolerogenic SC-DCs. These findings further support the role of SCs
in maintaining the immunoprivileged environment of the testis and provide a novel
approach to derive tolerogenic DCs, which may lead to alternative therapeutic
strategies for the treatment of immunopathogenic diseases.