Abl Tyrosine Kinase Regulates Hepatitis C Virus Entry

Abl is a central regulator of multiple cellular processes controlling actin dynamics, proliferation, and differentiation. Here, we showed that knockdown of Abl impaired hepatitis C virus (HCV) propagation. Treatment of Abl tyrosine kinase-specific inhibitor, imatinib and dasatinib, also significantl...

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Main Authors: Saehong Min, Yun-Sook Lim, Dongjo Shin, Chorong Park, Jae-Bong Park, Seungtaek Kim, Marc P. Windisch, Soon B. Hwang
Format: Article
Language:English
Published: Frontiers Media S.A. 2017-06-01
Series:Frontiers in Microbiology
Subjects:
Online Access:http://journal.frontiersin.org/article/10.3389/fmicb.2017.01129/full
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author Saehong Min
Saehong Min
Yun-Sook Lim
Dongjo Shin
Dongjo Shin
Chorong Park
Chorong Park
Jae-Bong Park
Seungtaek Kim
Marc P. Windisch
Soon B. Hwang
Soon B. Hwang
author_facet Saehong Min
Saehong Min
Yun-Sook Lim
Dongjo Shin
Dongjo Shin
Chorong Park
Chorong Park
Jae-Bong Park
Seungtaek Kim
Marc P. Windisch
Soon B. Hwang
Soon B. Hwang
author_sort Saehong Min
collection DOAJ
description Abl is a central regulator of multiple cellular processes controlling actin dynamics, proliferation, and differentiation. Here, we showed that knockdown of Abl impaired hepatitis C virus (HCV) propagation. Treatment of Abl tyrosine kinase-specific inhibitor, imatinib and dasatinib, also significantly decreased HCV RNA and protein levels in HCV-infected cells. We showed that both imatinib and dasatinib selectively inhibited HCV infection at the entry step of HCV life cycle, suggesting that Abl kinase activity may be necessary for HCV entry. Using HCV pseudoparticle infection assays, we verified that Abl is required for viral entry. By employing transferrin uptake and immunofluorescence assays, we further demonstrated that Abl was involved in HCV entry at a clathrin-mediated endocytosis step. These data suggest that Abl may represent a novel host factor for HCV entry.
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spelling doaj.art-7d55f83173bb49e5aaa9993b879c9ecb2022-12-22T02:47:47ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2017-06-01810.3389/fmicb.2017.01129266003Abl Tyrosine Kinase Regulates Hepatitis C Virus EntrySaehong Min0Saehong Min1Yun-Sook Lim2Dongjo Shin3Dongjo Shin4Chorong Park5Chorong Park6Jae-Bong Park7Seungtaek Kim8Marc P. Windisch9Soon B. Hwang10Soon B. Hwang11Department of Biomedical Gerontology, Graduate School of Hallym UniversityChuncheon, South KoreaNational Research Laboratory of Hepatitis C Virus and Ilsong Institute of Life Science, Hallym UniversityAnyang, South KoreaNational Research Laboratory of Hepatitis C Virus and Ilsong Institute of Life Science, Hallym UniversityAnyang, South KoreaDepartment of Biomedical Gerontology, Graduate School of Hallym UniversityChuncheon, South KoreaHepatitis Research Laboratory, Institut Pasteur KoreaSeongnam, South KoreaDepartment of Biomedical Gerontology, Graduate School of Hallym UniversityChuncheon, South KoreaNational Research Laboratory of Hepatitis C Virus and Ilsong Institute of Life Science, Hallym UniversityAnyang, South KoreaDepartment of Biochemistry, College of Medicine, Hallym UniversityChuncheon, South KoreaInstitute of Gastroenterology, Yonsei University College of MedicineSeoul, South KoreaHepatitis Research Laboratory, Institut Pasteur KoreaSeongnam, South KoreaDepartment of Biomedical Gerontology, Graduate School of Hallym UniversityChuncheon, South KoreaNational Research Laboratory of Hepatitis C Virus and Ilsong Institute of Life Science, Hallym UniversityAnyang, South KoreaAbl is a central regulator of multiple cellular processes controlling actin dynamics, proliferation, and differentiation. Here, we showed that knockdown of Abl impaired hepatitis C virus (HCV) propagation. Treatment of Abl tyrosine kinase-specific inhibitor, imatinib and dasatinib, also significantly decreased HCV RNA and protein levels in HCV-infected cells. We showed that both imatinib and dasatinib selectively inhibited HCV infection at the entry step of HCV life cycle, suggesting that Abl kinase activity may be necessary for HCV entry. Using HCV pseudoparticle infection assays, we verified that Abl is required for viral entry. By employing transferrin uptake and immunofluorescence assays, we further demonstrated that Abl was involved in HCV entry at a clathrin-mediated endocytosis step. These data suggest that Abl may represent a novel host factor for HCV entry.http://journal.frontiersin.org/article/10.3389/fmicb.2017.01129/fullhepatitis C virusAbl tyrosine kinasehost factorHCV entrytyrosine kinase- inhibitorviral propagation
spellingShingle Saehong Min
Saehong Min
Yun-Sook Lim
Dongjo Shin
Dongjo Shin
Chorong Park
Chorong Park
Jae-Bong Park
Seungtaek Kim
Marc P. Windisch
Soon B. Hwang
Soon B. Hwang
Abl Tyrosine Kinase Regulates Hepatitis C Virus Entry
Frontiers in Microbiology
hepatitis C virus
Abl tyrosine kinase
host factor
HCV entry
tyrosine kinase- inhibitor
viral propagation
title Abl Tyrosine Kinase Regulates Hepatitis C Virus Entry
title_full Abl Tyrosine Kinase Regulates Hepatitis C Virus Entry
title_fullStr Abl Tyrosine Kinase Regulates Hepatitis C Virus Entry
title_full_unstemmed Abl Tyrosine Kinase Regulates Hepatitis C Virus Entry
title_short Abl Tyrosine Kinase Regulates Hepatitis C Virus Entry
title_sort abl tyrosine kinase regulates hepatitis c virus entry
topic hepatitis C virus
Abl tyrosine kinase
host factor
HCV entry
tyrosine kinase- inhibitor
viral propagation
url http://journal.frontiersin.org/article/10.3389/fmicb.2017.01129/full
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