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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 Blood+Cancer+J
2015 ; 5
(3
): 287
Nephropedia Template TP
gab.com Text
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Dysregulated choline metabolism in T-cell lymphoma: role of choline kinase-? and
therapeutic targeting
#MMPMID25768400
Xiong J
; Bian J
; Wang L
; Zhou JY
; Wang Y
; Zhao Y
; Wu LL
; Hu JJ
; Li B
; Chen SJ
; Yan C
; Zhao WL
Blood Cancer J
2015[Mar]; 5
(3
): 287
PMID25768400
show ga
Cancer cells have distinct metabolomic profile. Metabolic enzymes regulate key
oncogenic signaling pathways and have an essential role on tumor progression.
Here, serum metabolomic analysis was performed in 45 patients with T-cell
lymphoma (TCL) and 50 healthy volunteers. The results showed that dysregulation
of choline metabolism occurred in TCL and was related to tumor cell
overexpression of choline kinase-? (Chok?). In T-lymphoma cells, pharmacological
and molecular silencing of Chok? significantly decreased Ras-GTP activity, AKT
and ERK phosphorylation and MYC oncoprotein expression, leading to restoration of
choline metabolites and induction of tumor cell apoptosis/necropotosis. In a
T-lymphoma xenograft murine model, Chok? inhibitor CK37 remarkably retarded tumor
growth, suppressed Ras-AKT/ERK signaling, increased lysophosphatidylcholine
levels and induced in situ cell apoptosis/necropotosis. Collectively, as a
regulatory gene of aberrant choline metabolism, Chok? possessed oncogenic
activity and could be a potential therapeutic target in TCL, as well as other
hematological malignancies with interrupted Ras signaling pathways.