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2015 ; 6
(41
): 43881-96
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Cerdulatinib, a novel dual SYK/JAK kinase inhibitor, has broad anti-tumor
activity in both ABC and GCB types of diffuse large B cell lymphoma
#MMPMID26575169
Ma J
; Xing W
; Coffey G
; Dresser K
; Lu K
; Guo A
; Raca G
; Pandey A
; Conley P
; Yu H
; Wang YL
Oncotarget
2015[Dec]; 6
(41
): 43881-96
PMID26575169
show ga
B-cell receptor (BCR) and JAK/STAT pathways play critical roles in diffuse large
B-cell lymphoma (DLBCL). Herein, we investigated the anti-lymphoma activity of
cerdulatinib, a novel compound that dually targets SYK and JAK/STAT pathways. On
a tissue microarray of 62 primary DLBCL tumors, 58% expressed either
phosphorylated SYK or STAT3 or both. SYK and STAT3 are also phosphorylated in a
panel of eleven DLBCL cell lines although ABC and GCB subtypes exhibited
different JAK/STAT and BCR signaling profiles. In both ABC and GCB cell lines,
cerdulatinib induced apoptosis that was associated with caspase-3 and PARP
cleavage. The compound also blocked G1/S transition and caused cell cycle arrest,
accompanied by inhibition of RB phosphorylation and down-regulation of cyclin E.
Phosphorylation of BCR components and STAT3 was sensitive to cerdulatinib in both
ABC and GCB cell lines under stimulated conditions. Importantly, JAK/STAT and BCR
signaling can be blocked by cerdulatinib in primary GCB and non-GCB DLBCL tumor
cells that were accompanied by cell death. Our work provides mechanistic insights
into the actions of cerdulatinib, suggesting that the drug has a broad anti-tumor
activity in both ABC and GCB DLBCL, at least in part by inhibiting SYK and JAK
pathways.
|Antineoplastic Agents/*pharmacology
[MESH]
|Cell Line, Tumor
[MESH]
|Cell Survival/drug effects
[MESH]
|Enzyme Inhibitors/pharmacology
[MESH]
|Flow Cytometry
[MESH]
|Humans
[MESH]
|Immunoblotting
[MESH]
|Immunohistochemistry
[MESH]
|Intracellular Signaling Peptides and Proteins/metabolism
[MESH]
|Janus Kinases/metabolism
[MESH]
|Lymphoma, Large B-Cell, Diffuse/*pathology
[MESH]