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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 J+Clin+Transl+Hepatol
2014 ; 2
(2
): 134-9
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Interaction Between the Neglected Tropical Disease Human Schistosomiasis and HCV
Infection in Egypt: a Puzzling Relationship
#MMPMID26356794
Bahgat MM
J Clin Transl Hepatol
2014[Jun]; 2
(2
): 134-9
PMID26356794
show ga
Egypt has the highest prevalence of chronic hepatitis C virus (HCV) infection and
seropositivity worldwide, and it has been proposed that this enhanced
susceptibility to HCV is related to coinfection with schistosomiasis. Although
currently, there are no studies regarding the actual prevalence of both human
schistosomiasis and schistosomiasis/HCV coinfection evidences strongly support
that eliminating human schistosomiasis from Egypt is necessary to reduce both HCV
prevalence and liver pathology. The present review highlights the significant
impact of the neglected tropical disease human schistosomiasis on both
susceptibility of Egyptians to HCV coinfection, severity of the resulting liver
pathology, and poor response to antiviral therapy. The immune evasion mechanisms
exerted by the HCV-NS3/4A protease domain, and the possible impact of immune
evasion mechanisms exerted by proteases of larval, worm and egg stages of the
parasite Schistosoma on human susceptibility to HCV infection are discussed. In
addition, schistosome immune evasion mechanisms may include immunosuppression
that in turn prevents clearance of HCV viremia and leads to relapsing HCV
infection and severe liver pathology. I propose the generation of a replicon
system from the most prevailing genotype (HCV-4a) in Egypt and establishing its
replication on hepatoplastoma or immune cells in presence of bilharzial antigens.
Finally, the use of a humanized small animal model that can acquire both HCV and
S. mansoni infections will be important to further understand in real time the
impact of coinfection on both the immune system and liver pathology.