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
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
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\26311879
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 J+Virol
2015 ; 89
(21
): 11080-91
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Role of the DNA Sensor STING in Protection from Lethal Infection following
Corneal and Intracerebral Challenge with Herpes Simplex Virus 1
#MMPMID26311879
Parker ZM
; Murphy AA
; Leib DA
J Virol
2015[Nov]; 89
(21
): 11080-91
PMID26311879
show ga
STING is a protein in the cytosolic DNA and cyclic dinucleotide sensor pathway
that is critical for the initiation of innate responses to infection by various
pathogens. Consistent with this, herpes simplex virus 1 (HSV-1) causes invariable
and rapid lethality in STING-deficient (STING(-/-)) mice following intravenous
(i.v.) infection. In this study, using real-time bioluminescence imaging and
virological assays, as expected, we demonstrated that STING(-/-) mice support
greater replication and spread in ocular tissues and the nervous system. In
contrast, they did not succumb to challenge via the corneal route even with high
titers of a virus that was routinely lethal to STING(-/-) mice by the i.v. route.
Corneally infected STING(-/-) mice also showed increased periocular disease and
increased corneal and trigeminal ganglia titers, although there was no difference
in brain titers. They also showed elevated expression of tumor necrosis factor
alpha (TNF-?) and CXCL9 relative to control mice but surprisingly modest changes
in type I interferon expression. Finally, we also showed that HSV strains lacking
the ability to counter autophagy and the PKR-driven antiviral state had
near-wild-type virulence following intracerebral infection of STING(-/-) mice.
Together, these data show that while STING is an important component of host
resistance to HSV in the cornea, its previously shown immutable role in mediating
host survival by the i.v. route was not recapitulated following a mucosal
infection route. Furthermore, our data are consistent with the idea that HSV
counters STING-mediated induction of the antiviral state and autophagy response,
both of which are critical factors for survival following direct infection of the
nervous system. IMPORTANCE: HSV infections represent an incurable source of
morbidity and mortality in humans and are especially severe in neonatal and
immunocompromised populations. A key step in the development of an immune
response is the recognition of microbial components within infected cells. The
host protein STING is important in this regard for the recognition of HSV DNA and
the subsequent triggering of innate responses. STING was previously shown to be
essential for protection against lethal challenge from intravenous HSV-1
infection. In this study, we show that the requirement for STING depends on the
infection route. In addition, STING is important for appropriate regulation of
the inflammatory response in the cornea, and our data are consistent with the
idea that HSV modulates STING activity through inhibition of autophagy. Our
results elucidate the importance of STING in host protection from HSV-1 and
demonstrate the redundancy of host protective mechanisms, especially following
mucosal infection.
|Animals
[MESH]
|Cerebrum/*virology
[MESH]
|Chemokine CXCL9/metabolism
[MESH]
|Chlorocebus aethiops
[MESH]
|Cornea/*virology
[MESH]
|Cytokines/blood
[MESH]
|Herpes Simplex/physiopathology/*prevention & control
[MESH]