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
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\29238039
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Cell+Death+Dis
2017 ; 8
(12
): 3207
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Helicobacter pylori VacA induces autophagic cell death in gastric epithelial
cells via the endoplasmic reticulum stress pathway
#MMPMID29238039
Zhu P
; Xue J
; Zhang ZJ
; Jia YP
; Tong YN
; Han D
; Li Q
; Xiang Y
; Mao XH
; Tang B
Cell Death Dis
2017[Dec]; 8
(12
): 3207
PMID29238039
show ga
The Helicobacter pylori vacuolating cytotoxin (VacA) can promote progressive
vacuolation and gastric injury and may be associated with human gastric cancer.
Increasing evidence indicates that autophagy is involved in the cell death
induced by VacA, but the specific mechanisms need to be further elucidated. We
show here that VacA could induce autophagy and increase cell death in human
gastric cancer cell lines. Further investigations revealed that inhibition of
autophagy could decrease the VacA-induced cell death in AGS cells. Furthermore,
numerous dilated endoplasmic reticula (ER) were observed, and the phosphorylation
of a subunit of eukaryotic translation initiation factor 2 subunit 1 also
increased in the VacA-treated AGS cells, while repression of ER stress could
reduce autophagy and cell death through knockdown of activating transcription
factor 4 and DNA-damage-inducible transcript 3. In addition, the expression of
pseudokinase tribbles homolog 3 (TRIB3) upon ER stress was triggered by VacA, and
knockdown of TRIB3 could also decrease VacA-induced cell death. Finally,
inhibition of autophagy could decrease VacA (s1m1) -induced cell death and
apoptosis, and apoptosis inhibitor Z-VAD had no significant effect on autophagy
induced by VacA (s1m1) . Thus, these results suggested that VacA causes
autophagic cell death via ER stress in gastric epithelial cells.