Inhibition of HCV 3a genotype entry through Host CD81 and HCV E2 antibodies

<p>Abstract</p> <p>Background</p> <p>HCV causes acute and chronic hepatitis which can eventually lead to permanent liver damage hepatocellular carcinoma and death. HCV glycoproteins play an important role in HCV entry by binding with CD81 receptors. Hence inhibition of...

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Main Authors: Ashfaq Usman A, Qasim Muhammad, Yousaf Muhammad Z, Awan Muhammad, Jahan Shah
Format: Article
Language:English
Published: BMC 2011-11-01
Series:Journal of Translational Medicine
Online Access:http://www.translational-medicine.com/content/9/1/194
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author Ashfaq Usman A
Qasim Muhammad
Yousaf Muhammad Z
Awan Muhammad
Jahan Shah
author_facet Ashfaq Usman A
Qasim Muhammad
Yousaf Muhammad Z
Awan Muhammad
Jahan Shah
author_sort Ashfaq Usman A
collection DOAJ
description <p>Abstract</p> <p>Background</p> <p>HCV causes acute and chronic hepatitis which can eventually lead to permanent liver damage hepatocellular carcinoma and death. HCV glycoproteins play an important role in HCV entry by binding with CD81 receptors. Hence inhibition of virus at entry step is an important target to identify antiviral drugs against HCV.</p> <p>Methods and result</p> <p>The present study elaborated the role of CD81 and HCV glycoprotein E2 in HCV entry using retroviral pseudo-particles of 3a local genotype. Our results demonstrated that HCV specific antibody E2 and host antibody CD81 showed dose- dependent inhibition of HCV entry. HCV E2 antibody showed 50% reduction at a concentration of 1.5 ± 1 μg while CD81 exhibited 50% reduction at a concentration of 0.8 ± 1 μg. In addition, data obtained with HCVpp were also confirmed with the infection of whole virus of HCV genotype 3a in liver cells.</p> <p>Conclusion</p> <p>Our data suggest that HCV specific E2 and host CD81 antibodies reduce HCVpp entry and full length viral particle and combination of host and HCV specific antibodies showed synergistic effect in reducing the viral titer.</p>
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spelling doaj.art-8adc31460da34843a9a4467689f98ede2022-12-21T23:27:25ZengBMCJournal of Translational Medicine1479-58762011-11-019119410.1186/1479-5876-9-194Inhibition of HCV 3a genotype entry through Host CD81 and HCV E2 antibodiesAshfaq Usman AQasim MuhammadYousaf Muhammad ZAwan MuhammadJahan Shah<p>Abstract</p> <p>Background</p> <p>HCV causes acute and chronic hepatitis which can eventually lead to permanent liver damage hepatocellular carcinoma and death. HCV glycoproteins play an important role in HCV entry by binding with CD81 receptors. Hence inhibition of virus at entry step is an important target to identify antiviral drugs against HCV.</p> <p>Methods and result</p> <p>The present study elaborated the role of CD81 and HCV glycoprotein E2 in HCV entry using retroviral pseudo-particles of 3a local genotype. Our results demonstrated that HCV specific antibody E2 and host antibody CD81 showed dose- dependent inhibition of HCV entry. HCV E2 antibody showed 50% reduction at a concentration of 1.5 ± 1 μg while CD81 exhibited 50% reduction at a concentration of 0.8 ± 1 μg. In addition, data obtained with HCVpp were also confirmed with the infection of whole virus of HCV genotype 3a in liver cells.</p> <p>Conclusion</p> <p>Our data suggest that HCV specific E2 and host CD81 antibodies reduce HCVpp entry and full length viral particle and combination of host and HCV specific antibodies showed synergistic effect in reducing the viral titer.</p>http://www.translational-medicine.com/content/9/1/194
spellingShingle Ashfaq Usman A
Qasim Muhammad
Yousaf Muhammad Z
Awan Muhammad
Jahan Shah
Inhibition of HCV 3a genotype entry through Host CD81 and HCV E2 antibodies
Journal of Translational Medicine
title Inhibition of HCV 3a genotype entry through Host CD81 and HCV E2 antibodies
title_full Inhibition of HCV 3a genotype entry through Host CD81 and HCV E2 antibodies
title_fullStr Inhibition of HCV 3a genotype entry through Host CD81 and HCV E2 antibodies
title_full_unstemmed Inhibition of HCV 3a genotype entry through Host CD81 and HCV E2 antibodies
title_short Inhibition of HCV 3a genotype entry through Host CD81 and HCV E2 antibodies
title_sort inhibition of hcv 3a genotype entry through host cd81 and hcv e2 antibodies
url http://www.translational-medicine.com/content/9/1/194
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