T. Jake Liang

Hepatitis B Virus X Protein Is both a Substrate and a Potential Inhibitor of the Proteasome Complex

Hu, Zongyi, Zhang, Zhensheng, Doo, Edward, Coux, Olivier, Goldberg, Alfred L., Liang, T. Jake

The hepatitis B virus X protein (HBX) is essential for the establishment of HBV infection in vivo and exerts a pleiotropic effect on diverse cellular functions. The yeast two-hybrid system had...

Hepatitis C Virus Structural Proteins Assemble into Viruslike Particles in Insect Cells

Baumert, Thomas F., Ito, Susumu, Wong, David T., Liang, T. Jake

Hepatitis C virus (HCV) is a leading cause of chronic hepatitis in the world. The study of HCV has been hampered by the low level of viral particles in infected individuals, the inability to...

Naturally Occurring Mutations Define a Novel Function of the Hepatitis B Virus Core Promoter in Core Protein Expression

Baumert, Thomas F., Marrone, Aldo, Vergalla, John, Liang, T. Jake

Functional analysis of naturally occurring hepatitis B virus (HBV) mutations is crucial in understanding their impact on disease. We have recently identified two mutations in the HBV core promoter of...

Genetic Immunization of Wild-Type and Hepatitis C Virus Transgenic Mice Reveals a Hierarchy of Cellular Immune Response and Tolerance Induction against Hepatitis C Virus Structural Proteins

Satoi, Jujin, Murata, Kazumoto, Lechmann, Martin, Manickan, Elanchezhiyan, Zhang, Zhensheng, Wedemeyer, Heiner, ...

To study the effect of genetic immunization on transgenic expression of hepatitis C virus (HCV) proteins, we evaluated the immunological response of HCV transgenic mice to HCV expression plasmids....

Molecular and Immunological Significance of Chimpanzee Major Histocompatibility Complex Haplotypes for Hepatitis C Virus Immune Response and Vaccination Studies

Mizukoshi, Eishiro, Nascimbeni, Michelina, Blaustein, Joshua B., Mihalik, Kathleen, Rice, Charles M., Liang, T. Jake, ...

The chimpanzee is a critical animal model for studying cellular immune responses to infectious pathogens such as hepatitis B and C viruses, human immunodeficiency virus, and malaria. Several...

Interaction of Hepatitis C Virus-Like Particles and Cells: a Model System for Studying Viral Binding and Entry

Triyatni, Miriam, Saunier, Bertrand, Maruvada, Padma, Davis, Anthony R., Ulianich, Luca, Heller, Theo, ...

Hepatitis C virus-like particles (HCV-LPs) containing the structural proteins of HCV H77 strain (1a genotype) was used as a model for HCV virion to study virus-cell interaction. HCV-LPs showed a...

The Clearance of Hepatitis C Virus Infection in Chimpanzees May Not Necessarily Correlate with the Appearance of Acquired Immunity

Thomson, Michael, Nascimbeni, Michelina, Havert, Michael B., Major, Marian, Gonzales, Sophia, Alter, Harvey, ...

Clearance of hepatitis C virus (HCV) infection in humans and chimpanzees is thought to be associated with the induction of strong T-cell responses. We studied four chimpanzees infected with HCV...

Immunization with hepatitis C virus-like particles protects mice from recombinant hepatitis C virus-vaccinia infection

Murata, Kazumoto, Lechmann, Martin, Qiao, Ming, Gunji, Toshiaki, Alter, Harvey J., Liang, T. Jake

We have recently demonstrated that immunization with hepatitis C virus-like particles (HCV-LPs) generated in insect cells can elicit both humoral and cellular immune responses in BALB/c mice. Here,...

X-deficient woodchuck hepatitis virus mutants behave like attenuated viruses and induce protective immunity in vivo

Zhang, Zhensheng, Torii, Nobuyuki, Hu, Zongyi, Jacob, James, Liang, T. Jake

The X protein (HBX) of the hepatitis B virus (HBV) has been shown to be important for the establishment of HBV infection in vivo. Our previous studies suggested that interaction of HBX with the...

Effects of Mutations of the Initiation Nucleotides on Hepatitis C Virus RNA Replication in the Cell

Cai, Zhaohui, Liang, T. Jake, Luo, Guangxiang

Replication of nearly all RNA viruses depends on a virus-encoded RNA-dependent RNA polymerase (RdRp). Our earlier work found that purified recombinant hepatitis C virus (HCV) RdRp (NS5B) was able to...

Inhibition of Cellular Proteasome Activities Enhances Hepadnavirus Replication in an HBX-Dependent Manner

Zhang, Zhensheng, Protzer, Ulrike, Hu, Zongyi, Jacob, James, Liang, T. Jake

The X protein (HBX) of the hepatitis B virus (HBV) is not essential for the HBV life cycle in vitro but is important for productive infection in vivo. Our previous study suggests that interaction of...

Human Monoclonal Antibody to Hepatitis C Virus E1 Glycoprotein That Blocks Virus Attachment and Viral Infectivity

Keck, Zhen-Yong, Sung, Vicky M. H., Perkins, Susan, Rowe, Judy, Paul, Sudhir, Liang, T. Jake, ...

Human antibodies elicited in response to hepatitis C virus (HCV) infection are anticipated to react with the native conformation of the viral envelope structure. Isolation of these antibodies as...

Immunization with Hepatitis C Virus-Like Particles Induces Humoral and Cellular Immune Responses in Nonhuman Primates

Jeong, Sook-Hyang, Qiao, Ming, Nascimbeni, Michelina, Hu, Zongyi, Rehermann, Barbara, Murthy, Krishna, ...

We have previously reported the production of hepatitis C virus-like particles (HCV-LP) using a recombinant baculovirus containing the cDNA of the HCV structural proteins (core, E1, and E2). These...

Inhibition of Hepatitis C Virus-Like Particle Binding to Target Cells by Antiviral Antibodies in Acute and Chronic Hepatitis C

Steinmann, Daniel, Barth, Heidi, Gissler, Bettina, Schürmann, Peter, Adah, Mohammed I., Gerlach, J. Tilman, ...

Hepatitis C virus (HCV) is a leading cause of chronic viral hepatitis worldwide. The study of antibody-mediated virus neutralization has been hampered by the lack of an efficient and high-throughput...

An in vitro model of hepatitis C virion production

Heller, Theo, Saito, Satoru, Auerbach, Jonathan, Williams, Tarice, Moreen, Tzivia Rachel, Jazwinski, Allison, ...

The hepatitis C virus (HCV) is a major cause of liver disease worldwide. The understanding of the viral life cycle has been hampered by the lack of a satisfactory cell culture system. The development...

Interferon-gamma inhibits interferon-alpha signalling in hepatic cells: evidence for the involvement of STAT1 induction and hyperexpression of STAT1 in chronic hepatitis C.

Radaeva, Svetlana, Jaruga, Barbara, Kim, Won-Ho, Heller, Theo, Liang, T Jake, Gao, Bin

IFN-gamma (interferon-gamma) modulates IFN-alpha therapy in chronic hepatitis C infection; however, the underlying mechanism remains unclear. Here we demonstrate that long-term (3-6 days) but not...

Robust Production of Infectious Hepatitis C Virus (HCV) from Stably HCV cDNA-Transfected Human Hepatoma Cells

Cai, Zhaohui, Zhang, Chen, Chang, Kyung-Soo, Jiang, Jieyun, Ahn, Byung-Chul, Wakita, Takaji, ...

Hepatitis C virus (HCV) chronically infects approximately 170 million people worldwide, with an increased risk of developing cirrhosis and hepatocellular carcinoma. The study of HCV replication and...

Altered Proteolysis and Global Gene Expression in Hepatitis B Virus X Transgenic Mouse Liver

Hu, Zongyi, Zhang, Zhensheng, Kim, Jin Woo, Huang, Ying, Liang, T. Jake

Hepatitis B virus X (HBX) is essential for the productive infection of hepatitis B virus (HBV) in vivo and has a pleiotropic effect on host cells. We have previously demonstrated that the proteasome...

Hepatitis B Virus X Protein Is both a Substrate and a Potential Inhibitor of the Proteasome Complex

Hu, Zongyi, Zhang, Zhensheng, Doo, Edward, Coux, Olivier, Goldberg, Alfred L., Liang, T. Jake

The hepatitis B virus X protein (HBX) is essential for the establishment of HBV infection in vivo and exerts a pleiotropic effect on diverse cellular functions. The yeast two-hybrid system had...

Hepatitis C Virus Structural Proteins Assemble into Viruslike Particles in Insect Cells

Baumert, Thomas F., Ito, Susumu, Wong, David T., Liang, T. Jake

Hepatitis C virus (HCV) is a leading cause of chronic hepatitis in the world. The study of HCV has been hampered by the low level of viral particles in infected individuals, the inability to...

Naturally Occurring Mutations Define a Novel Function of the Hepatitis B Virus Core Promoter in Core Protein Expression

Baumert, Thomas F., Marrone, Aldo, Vergalla, John, Liang, T. Jake

Functional analysis of naturally occurring hepatitis B virus (HBV) mutations is crucial in understanding their impact on disease. We have recently identified two mutations in the HBV core promoter of...

Genetic Immunization of Wild-Type and Hepatitis C Virus Transgenic Mice Reveals a Hierarchy of Cellular Immune Response and Tolerance Induction against Hepatitis C Virus Structural Proteins

Satoi, Jujin, Murata, Kazumoto, Lechmann, Martin, Manickan, Elanchezhiyan, Zhang, Zhensheng, Wedemeyer, Heiner, ...

To study the effect of genetic immunization on transgenic expression of hepatitis C virus (HCV) proteins, we evaluated the immunological response of HCV transgenic mice to HCV expression plasmids....

Molecular and Immunological Significance of Chimpanzee Major Histocompatibility Complex Haplotypes for Hepatitis C Virus Immune Response and Vaccination Studies

Mizukoshi, Eishiro, Nascimbeni, Michelina, Blaustein, Joshua B., Mihalik, Kathleen, Rice, Charles M., Liang, T. Jake, ...

The chimpanzee is a critical animal model for studying cellular immune responses to infectious pathogens such as hepatitis B and C viruses, human immunodeficiency virus, and malaria. Several...

Interaction of Hepatitis C Virus-Like Particles and Cells: a Model System for Studying Viral Binding and Entry

Triyatni, Miriam, Saunier, Bertrand, Maruvada, Padma, Davis, Anthony R., Ulianich, Luca, Heller, Theo, ...

Hepatitis C virus-like particles (HCV-LPs) containing the structural proteins of HCV H77 strain (1a genotype) was used as a model for HCV virion to study virus-cell interaction. HCV-LPs showed a...

The Clearance of Hepatitis C Virus Infection in Chimpanzees May Not Necessarily Correlate with the Appearance of Acquired Immunity

Thomson, Michael, Nascimbeni, Michelina, Havert, Michael B., Major, Marian, Gonzales, Sophia, Alter, Harvey, ...

Clearance of hepatitis C virus (HCV) infection in humans and chimpanzees is thought to be associated with the induction of strong T-cell responses. We studied four chimpanzees infected with HCV...

Immunization with hepatitis C virus-like particles protects mice from recombinant hepatitis C virus-vaccinia infection

Murata, Kazumoto, Lechmann, Martin, Qiao, Ming, Gunji, Toshiaki, Alter, Harvey J., Liang, T. Jake

We have recently demonstrated that immunization with hepatitis C virus-like particles (HCV-LPs) generated in insect cells can elicit both humoral and cellular immune responses in BALB/c mice. Here,...

X-deficient woodchuck hepatitis virus mutants behave like attenuated viruses and induce protective immunity in vivo

Zhang, Zhensheng, Torii, Nobuyuki, Hu, Zongyi, Jacob, James, Liang, T. Jake

The X protein (HBX) of the hepatitis B virus (HBV) has been shown to be important for the establishment of HBV infection in vivo. Our previous studies suggested that interaction of HBX with the...

Effects of Mutations of the Initiation Nucleotides on Hepatitis C Virus RNA Replication in the Cell

Cai, Zhaohui, Liang, T. Jake, Luo, Guangxiang

Replication of nearly all RNA viruses depends on a virus-encoded RNA-dependent RNA polymerase (RdRp). Our earlier work found that purified recombinant hepatitis C virus (HCV) RdRp (NS5B) was able to...

Inhibition of Cellular Proteasome Activities Enhances Hepadnavirus Replication in an HBX-Dependent Manner

Zhang, Zhensheng, Protzer, Ulrike, Hu, Zongyi, Jacob, James, Liang, T. Jake

The X protein (HBX) of the hepatitis B virus (HBV) is not essential for the HBV life cycle in vitro but is important for productive infection in vivo. Our previous study suggests that interaction of...

Human Monoclonal Antibody to Hepatitis C Virus E1 Glycoprotein That Blocks Virus Attachment and Viral Infectivity

Keck, Zhen-Yong, Sung, Vicky M. H., Perkins, Susan, Rowe, Judy, Paul, Sudhir, Liang, T. Jake, ...

Human antibodies elicited in response to hepatitis C virus (HCV) infection are anticipated to react with the native conformation of the viral envelope structure. Isolation of these antibodies as...

Immunization with Hepatitis C Virus-Like Particles Induces Humoral and Cellular Immune Responses in Nonhuman Primates

Jeong, Sook-Hyang, Qiao, Ming, Nascimbeni, Michelina, Hu, Zongyi, Rehermann, Barbara, Murthy, Krishna, ...

We have previously reported the production of hepatitis C virus-like particles (HCV-LP) using a recombinant baculovirus containing the cDNA of the HCV structural proteins (core, E1, and E2). These...

Inhibition of Hepatitis C Virus-Like Particle Binding to Target Cells by Antiviral Antibodies in Acute and Chronic Hepatitis C

Steinmann, Daniel, Barth, Heidi, Gissler, Bettina, Schürmann, Peter, Adah, Mohammed I., Gerlach, J. Tilman, ...

Hepatitis C virus (HCV) is a leading cause of chronic viral hepatitis worldwide. The study of antibody-mediated virus neutralization has been hampered by the lack of an efficient and high-throughput...

An in vitro model of hepatitis C virion production

Heller, Theo, Saito, Satoru, Auerbach, Jonathan, Williams, Tarice, Moreen, Tzivia Rachel, Jazwinski, Allison, ...

The hepatitis C virus (HCV) is a major cause of liver disease worldwide. The understanding of the viral life cycle has been hampered by the lack of a satisfactory cell culture system. The development...

Interferon-gamma inhibits interferon-alpha signalling in hepatic cells: evidence for the involvement of STAT1 induction and hyperexpression of STAT1 in chronic hepatitis C.

Radaeva, Svetlana, Jaruga, Barbara, Kim, Won-Ho, Heller, Theo, Liang, T Jake, Gao, Bin

IFN-gamma (interferon-gamma) modulates IFN-alpha therapy in chronic hepatitis C infection; however, the underlying mechanism remains unclear. Here we demonstrate that long-term (3-6 days) but not...

Robust Production of Infectious Hepatitis C Virus (HCV) from Stably HCV cDNA-Transfected Human Hepatoma Cells

Cai, Zhaohui, Zhang, Chen, Chang, Kyung-Soo, Jiang, Jieyun, Ahn, Byung-Chul, Wakita, Takaji, ...

Hepatitis C virus (HCV) chronically infects approximately 170 million people worldwide, with an increased risk of developing cirrhosis and hepatocellular carcinoma. The study of HCV replication and...

Altered Proteolysis and Global Gene Expression in Hepatitis B Virus X Transgenic Mouse Liver

Hu, Zongyi, Zhang, Zhensheng, Kim, Jin Woo, Huang, Ying, Liang, T. Jake

Hepatitis B virus X (HBX) is essential for the productive infection of hepatitis B virus (HBV) in vivo and has a pleiotropic effect on host cells. We have previously demonstrated that the proteasome...

A functional SNP of interferon-γ gene is important for interferon-α-induced and spontaneous recovery from hepatitis C virus infection

Huang, Ying, Yang, Huiying, Borg, Brian B., Su, Xiaowen, Rhodes, Shannon L., Yang, Kai, ...

Cytokine polymorphisms are associated with disease outcome and interferon (IFN) treatment response in hepatitis C virus (HCV) infection. We genotyped eight SNPs spanning the entire IFN-γ gene in two...

Production of Infectious Hepatitis C Virus of Various Genotypes in Cell Cultures▿

Kato, Takanobu, Matsumura, Takuya, Heller, Theo, Saito, Satoru, Sapp, Ronda K., Murthy, Krishna, ...

A unique hepatitis C virus (HCV) strain JFH-1 has been shown to replicate efficiently in cell culture with production of infectious HCV. We previously developed a DNA expression system containing HCV...

Management of hepatitis B: Summary of a clinical research workshop Potential conflict of interest: Dr. Lok is a consultant and received grants from GlaxoSmithKline, Bristol-Myers Squibb, Idenix, Gilead, Roche, and Innogenetics.

Hoofnagle, Jay H., Doo, Edward, Liang, T. Jake, Fleischer, Russell, Lok, Anna S.F.

Chronic hepatitis B is caused by persistent infection with the hepatitis B virus (HBV), a unique DNA virus that replicates through an RNA intermediate produced from a stable covalently closed...

Myxovirus-1 and protein kinase haplotypes and fibrosis in chronic hepatitis C virus Potential conflict of interest: Nothing to report.

Yee, Leland J., Tang, Yong-Ming, Kleiner, David E., Wang, Dai, Im, KyungAh, Wahed, Abdus, ...

Candidate genes, including myxovirus resistance-1 (Mx1), protein kinase (PKR), transforming growth factor- Β 1 (TGF-Β), interleukin-10 (IL-10), and interferon-gamma (IFN-Γ), were evaluated for...

Immunization with hepatitis C virus-like particles results in control of hepatitis C virus infection in chimpanzees

Elmowalid, Gamal A., Qiao, Ming, Jeong, Sook-Hyang, Borg, Brian B., Baumert, Thomas F., Sapp, Ronda K., ...

Recombinant hepatitis C virus (HCV)-like particles (HCV-LPs) containing HCV structural proteins (core, E1, and E2) produced in insect cells resemble the putative HCV virions and are capable of...

Scavenger Receptor Class B Is Required for Hepatitis C Virus Uptake and Cross-Presentation by Human Dendritic Cells▿

Barth, Heidi, Schnober, Eva K., Neumann-Haefelin, Christoph, Thumann, Christine, Zeisel, Mirjam B., Diepolder, Helmut M., ...

Class B scavenger receptors (SR-Bs) bind lipoproteins and play an important role in lipid metabolism. Most recently, SR-B type I (SR-BI) and its splicing variant SR-BII have been found to mediate...

Hepatic Transcriptome Analysis of Hepatitis C Virus Infection in Chimpanzees Defines Unique Gene Expression Patterns Associated with Viral Clearance

Nanda, Santosh, Havert, Michael B., Calderón, Gloria M., Thomson, Michael, Jacobson, Christian, Kastner, Daniel, ...

Hepatitis C virus infection leads to a high rate of chronicity. Mechanisms of viral clearance and persistence are still poorly understood. In this study, hepatic gene expression analysis was...

Polymorphism in the Human Major Histocompatibility Complex and Early Viral Decline during Treatment of Chronic Hepatitis C ▿ ‡

Yee, Leland J., Im, KyungAh, Wahed, Abdus S., Bugawan, Teodorica, Li, Jia, Rhodes, Shannon L., ...

The dynamics of the viral decline immediately after the start of therapy for chronic hepatitis C virus (HCV) infection may have prognostic potential for ultimate sustained virologic response....