Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=27765901
&cmd=llinks): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests
in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 215
Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 253.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 253.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 253.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 253.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 253.2 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\27765901
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Oncotarget
2016 ; 7
(34
): 55543-55554
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
A FASN-TGF-?1-FASN regulatory loop contributes to high EMT/metastatic potential
of cisplatin-resistant non-small cell lung cancer
#MMPMID27765901
Yang L
; Zhang F
; Wang X
; Tsai Y
; Chuang KH
; Keng PC
; Lee SO
; Chen Y
Oncotarget
2016[Aug]; 7
(34
): 55543-55554
PMID27765901
show ga
Cisplatin-resistant A549CisR and H157CisR cell lines were developed by treating
parental A549 (A549P) and H157 (H157P) cells. These cisplatin-resistant cells
showed slight growth retardation, but exhibited higher epithelial-mesenchymal
transition (EMT) and increased metastatic potential compared to parental cells.
We observed a highly up-regulated fatty acid synthase (FASN) level in A549CisR
and H157CisR cells compared to parental cells and the up-regulation of FASN was
also detected in A549P and H157P cells after short time treatment with cisplatin,
suggesting that the high level of FASN in cisplatin-resistant cells may be from
the accumulated cellular responses during cisplatin-resistance developmental
process. We next investigated whether the inhibition of FASN by using a specific
FASN inhibitor, cerulenin, can influence growth and EMT/metastatic potential of
A549CisR and H157CisR cells. There was slight growth inhibition, but
significantly reduced EMT/metastatic potential in cisplatin-resistant cells upon
inhibitor treatment. The in vitro result was further investigated in orthotopic
xenograft mouse models established with luciferase-tagged H157P and H157CisR
cells. Mice were injected with cerulenin or vehicle after tumors were developed.
No significant tumor regression was detected at the end of cerulenin treatment,
but IHC staining showed higher expression of EMT/metastasis markers in H157CisR
cell-derived tumors than H157P cell-derived tumors, and showed dramatic reduction
of these markers in tumor tissues of cerulenin-treated mice, confirming the in
vitro results. In mechanism dissection studies, we revealed the existence of the
FASN-TGF-?1-FASN positive loop in A549CisR and H157CisR cells, but not in
parental cells, which is believed to augment the FASN function in
cisplatin-resistant cells.