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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Sci+Rep
2018 ; 8
(1
): 4908
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Complement C1q stimulates the progression of hepatocellular tumor through the
activation of discoidin domain receptor 1
#MMPMID29559654
Lee JH
; Poudel B
; Ki HH
; Nepali S
; Lee YM
; Shin JS
; Kim DK
Sci Rep
2018[Mar]; 8
(1
): 4908
PMID29559654
show ga
C1q is known to perform several functions in addition to the role it plays in
complement activation. C1q contains a collagen-like portion and DDR1 (discoidin
domain receptor 1) is a well-known collagen receptor. Accordingly, we
hypothesized C1q might be a novel ligand of DDR1. This study shows for the first
time C1q directly induces the activation and upregulation of DDR1, and that this
leads to enhanced migration and invasion of HepG2 cells. In addition, C1q was
found to induce the activations of mitogen-activated protein kinases (MAPKs) and
phosphoinositide 3-kinase (PI3K)/Akt signaling, and to increase the expressions
of matrix metalloproteinases (MMP2 and 9). Our results reveal a relationship
between C1q and DDR1 and suggest C1q-induced DDR1 activation signaling may be
involved in the progression of hepatocellular carcinoma.