Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=26687842
&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 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 265.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 298.79999999999995 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 298.79999999999995 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 298.79999999999995 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 298.79999999999995 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 298.79999999999995 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 298.79999999999995 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\26687842
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Cell+Microbiol
2016 ; 18
(7
): 970-81
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Fusobacterium nucleatum infection of gingival epithelial cells leads to NLRP3
inflammasome-dependent secretion of IL-1? and the danger signals ASC and HMGB1
#MMPMID26687842
Bui FQ
; Johnson L
; Roberts J
; Hung SC
; Lee J
; Atanasova KR
; Huang PR
; Yilmaz Ö
; Ojcius DM
Cell Microbiol
2016[Jul]; 18
(7
): 970-81
PMID26687842
show ga
Fusobacterium nucleatum is an invasive anaerobic bacterium that is associated
with periodontal disease. Previous studies have focused on virulence factors
produced by F. nucleatum, but early recognition of the pathogen by the immune
system remains poorly understood. Although an inflammasome in gingival epithelial
cells (GECs) can be stimulated by danger-associated molecular patterns (DAMPs)
(also known as danger signals) such as ATP, inflammasome activation by this
periodontal pathogen has yet to be described in these cells. This study therefore
examines the effects of F. nucleatum infection on pro-inflammatory cytokine
expression and inflammasome activation in GECs. Our results indicate that
infection induces translocation of NF-?B into the nucleus, resulting in cytokine
gene expression. In addition, infection activates the NLRP3 inflammasome, which
in turn activates caspase-1 and stimulates secretion of mature IL-1?. Unlike
other pathogens studied until now, F. nucleatum activates the inflammasome in
GECs in the absence of exogenous DAMPs such as ATP. Finally, infection promotes
release of other DAMPs that mediate inflammation, such as high-mobility group box
1 protein and apoptosis-associated speck-like protein, with a similar time-course
as caspase-1 activation. Thus, F. nucleatum expresses the pathogen-associated
molecular patterns necessary to activate NF-?B and also provides an endogenous
DAMP to stimulate the inflammasome and further amplify inflammation through
secretion of secondary DAMPs.