Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 243.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 243.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 243.2 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\28532450
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 J+Neuroinflammation
2017 ; 14
(1
): 106
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
LPS-induced systemic inflammation reveals an immunomodulatory role for the prion
protein at the blood-brain interface
#MMPMID28532450
Salvesen Ø
; Reiten MR
; Espenes A
; Bakkebø MK
; Tranulis MA
; Ersdal C
J Neuroinflammation
2017[May]; 14
(1
): 106
PMID28532450
show ga
BACKGROUND: The cellular prion protein (PrP(C)) is an evolutionary conserved
protein abundantly expressed not only in the central nervous system but also
peripherally including the immune system. A line of Norwegian dairy goats
naturally devoid of PrP(C) (PRNP (Ter/Ter)) provides a novel model for studying
PrP(C) physiology. METHODS: In order to explore putative roles for PrP(C) in
acute inflammatory responses, we performed a lipopolysaccharide (LPS, Escherichia
coli O26:B6) challenge of 16 goats (8 PRNP (+/+) and 8 PRNP (Ter/Ter)) and
included 10 saline-treated controls (5 of each PRNP genotype). Clinical
examinations were performed continuously, and blood samples were collected
throughout the trial. Genome-wide transcription profiles of the choroid plexus,
which is at the blood-brain interface, and the hippocampus were analyzed by RNA
sequencing, and the same tissues were histologically evaluated. RESULTS: All
LPS-treated goats displayed clinical signs of sickness behavior, which were of
significantly (p?0.01) longer duration in animals without PrP(C). In the
choroid plexus, a substantial alteration of the transcriptome and activation of
Iba1-positive cells were observed. This response included genotype-dependent
differential expression of several genes associated with the immune response,
such as ISG15, CXCL12, CXCL14, and acute phase proteins, among others. Activation
of cytokine-responsive genes was skewed towards a more profound type I interferon
response, and a less obvious type II response, in PrP(C)-deficient goats. The
magnitude of gene expression in response to LPS was smaller in the hippocampus
than in the choroid plexus. Resting state expression profiles revealed a few
differences between the PRNP genotypes. CONCLUSIONS: Our data suggest that PrP(C)
acts as a modulator of certain pathways of innate immunity signaling,
particularly downstream of interferons, and probably contributes to protection of
vulnerable tissues against inflammatory damage.