Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\28075524
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Cancer+Sci
2017 ; 108
(3
): 488-496
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
TOPK (T-LAK cell-originated protein kinase) inhibitor exhibits growth suppressive
effect on small cell lung cancer
#MMPMID28075524
Park JH
; Inoue H
; Kato T
; Zewde M
; Miyamoto T
; Matsuo Y
; Salgia R
; Nakamura Y
Cancer Sci
2017[Mar]; 108
(3
): 488-496
PMID28075524
show ga
T-lymphokine-activated killer cell-originated protein kinase (TOPK) plays
critical roles in cancer cell proliferation as well as maintenance of cancer stem
cells (CSC). Small cell lung cancer (SCLC) has highly aggressive phenotype,
reveals early spread to distant sites, and results in dismal prognosis with
little effective treatment. In this study, we demonstrate that TOPK expression
was highly upregulated in both SCLC cell lines and primary tumors. Similar to
siRNA-mediated TOPK knockdown effects, treatment with a potent TOPK inhibitor,
OTS514, effectively suppressed growth of SCLC cell lines (IC(50) ; 0.4-42.6 nM)
and led to their apoptotic cell death. TOPK inhibition caused cell morphologic
changes in SCLC cells, elongation of intercellular bridges caused by cytokinesis
defects or neuronal protrusions induced by neuronal differentiation in a subset
of CSC-like SCLC cells. Treatment with OTS514 suppressed forkhead box protein M1
(FOXM1) activity, which was involved in stemness of CSC. Furthermore, OTS514
treatment reduced CD90-positive SCLC cells and showed higher cytotoxic effect
against lung sphere-derived CSC-like SCLC cells. Collectively, our results
suggest that targeting TOPK is a promising approach for SCLC therapy.
|Cell Proliferation/*drug effects/genetics
[MESH]
|Forkhead Box Protein M1/antagonists & inhibitors
[MESH]
|Humans
[MESH]
|Lung Neoplasms/*pathology
[MESH]
|Mitogen-Activated Protein Kinase Kinases/*antagonists &
inhibitors/*genetics/metabolism
[MESH]