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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
2017 ; 7
(1
): 15931
Nephropedia Template TP
gab.com Text
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English Wikipedia
Broad-spectrum antiviral agents: secreted phospholipase A(2) targets viral
envelope lipid bilayers derived from the endoplasmic reticulum membrane
#MMPMID29162867
Chen M
; Aoki-Utsubo C
; Kameoka M
; Deng L
; Terada Y
; Kamitani W
; Sato K
; Koyanagi Y
; Hijikata M
; Shindo K
; Noda T
; Kohara M
; Hotta H
Sci Rep
2017[Nov]; 7
(1
): 15931
PMID29162867
show ga
Hepatitis C virus (HCV), dengue virus (DENV) and Japanese encephalitis virus
(JEV) belong to the family Flaviviridae. Their viral particles have the envelope
composed of viral proteins and a lipid bilayer acquired from budding through the
endoplasmic reticulum (ER). The phospholipid content of the ER membrane differs
from that of the plasma membrane (PM). The phospholipase A(2) (PLA(2))
superfamily consists of a large number of members that specifically catalyse the
hydrolysis of phospholipids at a particular position. Here we show that the CM-II
isoform of secreted PLA(2) obtained from Naja mossambica mossambica snake venom
(CM-II-sPLA(2)) possesses potent virucidal (neutralising) activity against HCV,
DENV and JEV, with 50% inhibitory concentrations (IC(50)) of 0.036, 0.31 and 1.34
ng/ml, respectively. In contrast, the IC(50) values of CM-II-sPLA(2) against
viruses that bud through the PM (Sindbis virus, influenza virus and Sendai virus)
or trans-Golgi network (TGN) (herpes simplex virus) were >10,000 ng/ml. Moreover,
the 50% cytotoxic (CC(50)) and haemolytic (HC(50)) concentrations of
CM-II-sPLA(2) were >10,000 ng/ml, implying that CM-II-sPLA(2) did not
significantly damage the PM. These results suggest that CM-II-sPLA(2) and its
derivatives are good candidates for the development of broad-spectrum antiviral
drugs that target viral envelope lipid bilayers derived from the ER membrane.