Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=27816967
&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 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
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\27816967
.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
(48
): 79141-79153
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Ubenimex attenuates acquired sorafenib resistance in renal cell carcinoma by
inhibiting Akt signaling in a lipophagy associated mechanism
#MMPMID27816967
Liu S
; Gao M
; Wang X
; Ding S
; Lv J
; Gao D
; Wang Z
; Niu Z
Oncotarget
2016[Nov]; 7
(48
): 79141-79153
PMID27816967
show ga
Sorafenib is used as first line treatment of renal cell carcinoma (RCC) due to
the poor sensitivity to radiotherapy and chemotherapy of this malignancy;
however, acquired resistance limits the application of sorafenib and its
analogues. In this study, we explored a new strategy to overcome acquired
resistance to sorafenib. The RCC cell lines 786-O and ACHN were cultured in
presence of increasing concentrations of sorafenib to generate
sorafenib-resistant cell lines, 786-O-R and ACHN-R. Interestingly, treatment with
ubenimex (0.25 mg/ml) and 3-MA (2 mM) restored the sensitivity of resistant cell
lines to sorafenib, indicating the involvement of autophagy in acquired
resistance. High levels of autophagy flux were observed in resistant cells, and
the opposite effects of ubenimex and 3-MA suggested a complex role for autophagy.
While 3-MA abolished protection in sorafenib-resistant cells, ubenimex induced
uncontrolled autophagy and autophagic cell death. Lipophagy, characterized by a
lipid droplet cargo, was observed in RCC tissues and cells. In
sorafenib-resistant cells, ubenimex inhibited the Akt signaling pathway that
regulates autophagy. In summary, lipophagy participates in sorafenib-resistance
of RCC, which could be reversed by interventions targeting the Akt pathway.