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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 Am+J+Transl+Res
2015 ; 7
(10
): 1812-25
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
AAL exacerbates pro-inflammatory response in macrophages by regulating
Mincle/Syk/Card9 signaling along with the Nlrp3 inflammasome assembly
#MMPMID26692926
Zhang Z
; He L
; Hu S
; Wang Y
; Lai Q
; Yang P
; Yu Q
; Zhang S
; Xiong F
; Simsekyilmaz S
; Ning Q
; Li J
; Zhang D
; Zhang H
; Xiang X
; Zhou Z
; Sun H
; Wang CY
Am J Transl Res
2015[]; 7
(10
): 1812-25
PMID26692926
show ga
Previously, we demonstrated that Agrocybe aegerita lectin (AAL), a galectin
isolated from edible mushroom Agrocybe aegerita, exerts potent anti-tumor
activity, while the mechanisms by which AAL suppresses tumor growth are yet to be
elucidated. Here, we conducted studies with focus for its impact on the cecal
ligation and puncture (CLP)-induced innate immune response. Administration of AAL
significantly exacerbated the severity of CLP-induced septic shock as manifested
the increased lethality. AAL promoted inflammatory cytokine production by
preferentially regulating macrophage activation and recruitment. Mechanistic
studies revealed that AAL likely targets macrophages through receptor Mincle to
activate Syk/Card9 signaling, which then couples to the Nlrp3 inflammasome
assembly. It was further noted that AAL markedly promotes H3K4 di- and
trimethylation, by which it enhances Hmgb1 expression. Specifically, AAL induced
macrophages secretion of copious amount of Hmgb1 as manifested the Hmgb1
cytoplasmic translocation along with the detection of extracellular Hmgb1. AAL
also stimulated a significant increase for nuclear Hmgb1, which then formed a
complex with RelA, and thereby enhancing NF-?B transcriptional activity.
Together, our data suggest that AAL may possess important pharmaceutical
properties in the regulation of innate immune response.