Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=27013582
&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 229.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 229.6 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\27013582
.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
(16
): 22873-82
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Blockage of autophagy pathway enhances Salmonella tumor-targeting
#MMPMID27013582
Liu B
; Jiang Y
; Dong T
; Zhao M
; Wu J
; Li L
; Chu Y
; She S
; Zhao H
; Hoffman RM
; Jia L
Oncotarget
2016[Apr]; 7
(16
): 22873-82
PMID27013582
show ga
Previous studies have shown that strains of Salmonella typhimurium specifically
target tumors in mouse models of cancer. In this study, we report that
tumor-targeting Salmonella typhimurium A1-R (A1-R) or VNP20009 induced autophagy
in human cancer cells, which serves as a defense response. Functionally, by
knockdown of essential autophagy genes Atg5 or Beclin1 in bacteria-infected
cancer cells, the autophagy pathway was blocked, which led to a significant
increase of intracellular bacteria multiplication in cancer cells. Genetic
inactivation of the autophagy pathway enhanced A1-R or VNP20009-mediated cancer
cell killing by increasing apoptotic activity. We also demonstrate that the
combination of pharmacological autophagy inhibitors chloroquine (CQ) or
bafilomycin A1 (Baf A1) with tumor-targeting A1-R or VNP20009 significantly
enhanced cancer-cell killing compared with Salmonella infection alone. These
findings provide a proof-of-concept of combining autophagy inhibitors and
tumor-targeting Salmonella to enhance cancer-cell killing.