Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 217.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 251.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 251.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 251.2 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\27226573
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 J+Biol+Chem
2016 ; 291
(31
): 16186-96
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Different Soluble Forms of the Interleukin-6 Family Signal Transducer gp130
Fine-tune the Blockade of Interleukin-6 Trans-signaling
#MMPMID27226573
Wolf J
; Waetzig GH
; Chalaris A
; Reinheimer TM
; Wege H
; Rose-John S
; Garbers C
J Biol Chem
2016[Jul]; 291
(31
): 16186-96
PMID27226573
show ga
Soluble forms of the IL-6 receptor (sIL-6R) bind to the cytokine IL-6 with
similar affinity as the membrane-bound IL-6R. IL-6·sIL-6R complexes initiate IL-6
trans-signaling via activation of the ubiquitously expressed membrane-bound
?-receptor glycoprotein 130 (gp130). Inhibition of IL-6 trans-signaling has been
shown to be favorable in numerous inflammatory diseases. Furthermore, different
soluble forms of gp130 (sgp130) exist that, together with the sIL-6R, are thought
to form a buffer for IL-6 in the blood. However, a functional role for the
different sgp130 forms has not been described to date. Here we demonstrate that
the metalloproteases ADAM10 and ADAM17 can produce sgp130 by ectodomain shedding
of gp130, even though this mechanism only accounts for a minor proportion of
sgp130 in the circulation. We further show that full-length sgp130 and the
shorter forms sgp130-rheumatoid arthritis-associated peptide (RAPS) and
sgp130-E10 are differentially expressed in a cell type- specific manner.
Remarkably, full-length sgp130 is expressed by monocytes, but this expression is
completely lost during differentiation into macrophages in vitro Using
genetically engineered murine pre-B cells that secrete different forms of sgp130,
we found that these secreted sgp130 proteins are able to prevent
trans-signaling-driven cell proliferation of the secreting cells, whereas
conditioned supernatant from these cells failed to block IL-6 trans-signaling in
other cells. Thus, our data suggest that the different sgp130 forms are released
from cells into their immediate surroundings and appear to form cell-associated
gradients to modulate their own susceptibility for IL-6 trans-signaling.
|ADAM10 Protein/genetics/metabolism
[MESH]
|ADAM17 Protein/genetics/metabolism
[MESH]
|Amyloid Precursor Protein Secretases/genetics/metabolism
[MESH]