Dong Sung An

Stable reduction of CCR5 by RNAi through hematopoietic stem cell transplant in non-human primates (2007)

An, Dong Sung, Donahue, Robert E., Kamata, Masakazu, Poon, Betty, Metzger, Mark, Mao, Si-Hua, ...

RNAi is a powerful method for suppressing gene expression that has tremendous potential for therapeutic applications. However, because endogenous RNAi plays a role in normal cellular functions,...

Inhibiting HIV-1 infection in human T cells by lentiviral-mediated delivery of small interfering RNA against CCR5 (2003)

Qin, Xiao-Feng, An, Dong Sung, Chen, Irvin S. Y., Baltimore, David

Double-stranded RNAs approximate to 21 nucleotides long [small interfering RNA (siRNA)] are recognized as powerful reagents to reduce the expression of specific genes. To use them as reagents to...

An Inducible Human Immunodeficiency Virus Type 1 (HIV-1) Vector Which Effectively Suppresses HIV-1 Replication

An, Dong Sung, Morizono, Kouki, Li, Qi-Xiang, Mao, Si Hua, Lu, Stephanie, Chen, Irvin S. Y.

Recently, gene therapy vectors based upon the human immunodeficiency virus type 1 (HIV-1) genome have been developed. Here, we create an HIV-1 vector which is defective for all HIV-1 genes, but which...

Marking and Gene Expression by a Lentivirus Vector in Transplanted Human and Nonhuman Primate CD34+ Cells

An, Dong Sung, Wersto, Robert P., Agricola, Brian A., Metzger, Mark E., Lu, Stephanie, Amado, Rafael G., ...

Recently, gene delivery vectors based on human immunodeficiency virus (HIV) have been developed as an alternative mode of gene delivery. These vectors have a number of advantages, particularly in...

A Murine Leukemia Virus (MuLV) Long Terminal Repeat Derived from Rhesus Macaques in the Context of a Lentivirus Vector and MuLV gag Sequence Results in High-Level Gene Expression in Human T Lymphocytes

Kung, Sam K. P., An, Dong Sung, Chen, Irvin S. Y.

We constructed human immunodeficiency virus type 1 (HIV-1) vectors that will allow higher levels of gene expression in T cells. Gene expression under the control of an internal cytomegalovirus (CMV)...

Human Immunodeficiency Virus Env-Independent Infection of Human CD4− Cells

Pang, Shen, Yu, Duan, An, Dong Sung, Baldwin, Gayle C., Xie, Yiming, Poon, Betty, ...

CD4− epithelial cells covering mucosal surfaces serve as the primary barrier to prevent human immunodeficiency virus type 1 (HIV-1) infection. We used HIV-1 vectors carrying the enhanced green...

Envelope Gene of the Human Endogenous Retrovirus HERV-W Encodes a Functional Retrovirus Envelope

An, Dong Sung, Xie, Yi-ming, Chen, Irvin S. Y.

A member of the human endogenous retrovirus (HERV) family termed HERV-W encodes a highly fusogenic membrane glycoprotein that appears to be expressed specifically in the placenta. It is unclear...

Lentivirus Vector-Mediated Hematopoietic Stem Cell Gene Transfer of Common Gamma-Chain Cytokine Receptor in Rhesus Macaques

An, Dong Sung, Kung, Sam K. P., Bonifacino, Aylin, Wersto, Robert P., Metzger, Mark E., Agricola, Brian A., ...

Nonhuman primate model systems of autologous CD34+ cell transplant are the most effective means to assess the safety and capabilities of lentivirus vectors. Toward this end, we tested the efficiency...

Inhibiting HIV-1 infection in human T cells by lentiviral-mediated delivery of small interfering RNA against CCR5

Qin, Xiao-Feng, An, Dong Sung, Chen, Irvin S. Y., Baltimore, David

Double-stranded RNAs ≈21 nucleotides long [small interfering RNA (siRNA)] are recognized as powerful reagents to reduce the expression of specific genes. To use them as reagents to protect cells...

The Ataxia Telangiectasia-Mutated and Rad3-Related Protein Is Dispensable for Retroviral Integration

DeHart, Jason L., Andersen, Joshua L., Zimmerman, Erik S., Ardon, Orly, An, Dong Sung, Blackett, Jana, ...

Integration into the host cell DNA is an essential part of the retroviral life cycle and is required for the productive replication of a retrovirus. Retroviral integration involves cleavage of the...

Lentivirus-delivered stable gene silencing by RNAi in primary cells

STEWART, SHEILA A., DYKXHOORN, DEREK M., PALLISER, DEBORAH, MIZUNO, HANA, YU, EVAN Y., AN, DONG SUNG, ...

Genome-wide genetic approaches have proven useful for examining pathways of biological significance in model organisms such as Saccharomyces cerevisiae, Drosophila melanogastor, and Caenorhabditis...

Evaluation of a Multiple-Cycle, Recombinant Virus, Growth Competition Assay That Uses Flow Cytometry To Measure Replication Efficiency of Human Immunodeficiency Virus Type 1 in Cell Culture

Dykes, Carrie, Wang, Jiong, Jin, Xia, Planelles, Vicente, An, Dong Sung, Tallo, Amanda, ...

Human immunodeficiency virus type 1 (HIV-1) replication efficiency or fitness, as measured in cell culture, has been postulated to correlate with clinical outcome of HIV infection, although this is...

An Inducible Human Immunodeficiency Virus Type 1 (HIV-1) Vector Which Effectively Suppresses HIV-1 Replication

An, Dong Sung, Morizono, Kouki, Li, Qi-Xiang, Mao, Si Hua, Lu, Stephanie, Chen, Irvin S. Y.

Recently, gene therapy vectors based upon the human immunodeficiency virus type 1 (HIV-1) genome have been developed. Here, we create an HIV-1 vector which is defective for all HIV-1 genes, but which...

Marking and Gene Expression by a Lentivirus Vector in Transplanted Human and Nonhuman Primate CD34+ Cells

An, Dong Sung, Wersto, Robert P., Agricola, Brian A., Metzger, Mark E., Lu, Stephanie, Amado, Rafael G., ...

Recently, gene delivery vectors based on human immunodeficiency virus (HIV) have been developed as an alternative mode of gene delivery. These vectors have a number of advantages, particularly in...

A Murine Leukemia Virus (MuLV) Long Terminal Repeat Derived from Rhesus Macaques in the Context of a Lentivirus Vector and MuLV gag Sequence Results in High-Level Gene Expression in Human T Lymphocytes

Kung, Sam K. P., An, Dong Sung, Chen, Irvin S. Y.

We constructed human immunodeficiency virus type 1 (HIV-1) vectors that will allow higher levels of gene expression in T cells. Gene expression under the control of an internal cytomegalovirus (CMV)...

Human Immunodeficiency Virus Env-Independent Infection of Human CD4− Cells

Pang, Shen, Yu, Duan, An, Dong Sung, Baldwin, Gayle C., Xie, Yiming, Poon, Betty, ...

CD4− epithelial cells covering mucosal surfaces serve as the primary barrier to prevent human immunodeficiency virus type 1 (HIV-1) infection. We used HIV-1 vectors carrying the enhanced green...

Envelope Gene of the Human Endogenous Retrovirus HERV-W Encodes a Functional Retrovirus Envelope

An, Dong Sung, Xie, Yi-ming, Chen, Irvin S. Y.

A member of the human endogenous retrovirus (HERV) family termed HERV-W encodes a highly fusogenic membrane glycoprotein that appears to be expressed specifically in the placenta. It is unclear...

Lentivirus Vector-Mediated Hematopoietic Stem Cell Gene Transfer of Common Gamma-Chain Cytokine Receptor in Rhesus Macaques

An, Dong Sung, Kung, Sam K. P., Bonifacino, Aylin, Wersto, Robert P., Metzger, Mark E., Agricola, Brian A., ...

Nonhuman primate model systems of autologous CD34+ cell transplant are the most effective means to assess the safety and capabilities of lentivirus vectors. Toward this end, we tested the efficiency...

Inhibiting HIV-1 infection in human T cells by lentiviral-mediated delivery of small interfering RNA against CCR5

Qin, Xiao-Feng, An, Dong Sung, Chen, Irvin S. Y., Baltimore, David

Double-stranded RNAs ≈21 nucleotides long [small interfering RNA (siRNA)] are recognized as powerful reagents to reduce the expression of specific genes. To use them as reagents to protect cells...

The Ataxia Telangiectasia-Mutated and Rad3-Related Protein Is Dispensable for Retroviral Integration

DeHart, Jason L., Andersen, Joshua L., Zimmerman, Erik S., Ardon, Orly, An, Dong Sung, Blackett, Jana, ...

Integration into the host cell DNA is an essential part of the retroviral life cycle and is required for the productive replication of a retrovirus. Retroviral integration involves cleavage of the...

Lentivirus-delivered stable gene silencing by RNAi in primary cells

STEWART, SHEILA A., DYKXHOORN, DEREK M., PALLISER, DEBORAH, MIZUNO, HANA, YU, EVAN Y., AN, DONG SUNG, ...

Genome-wide genetic approaches have proven useful for examining pathways of biological significance in model organisms such as Saccharomyces cerevisiae, Drosophila melanogastor, and Caenorhabditis...

Evaluation of a Multiple-Cycle, Recombinant Virus, Growth Competition Assay That Uses Flow Cytometry To Measure Replication Efficiency of Human Immunodeficiency Virus Type 1 in Cell Culture

Dykes, Carrie, Wang, Jiong, Jin, Xia, Planelles, Vicente, An, Dong Sung, Tallo, Amanda, ...

Human immunodeficiency virus type 1 (HIV-1) replication efficiency or fitness, as measured in cell culture, has been postulated to correlate with clinical outcome of HIV infection, although this is...

Use of a Novel Chimeric Mouse Model with a Functionally Active Human Immune System To Study Human Immunodeficiency Virus Type 1 Infection▿

An, Dong Sung, Poon, Betty, Fang, Raphael Ho Tsong, Weijer, Kees, Blom, Bianca, Spits, Hergen, ...

The goal of this study was to develop a small-animal model to study human immunodeficiency virus type 1 (HIV-1) pathogenesis in blood and primary and secondary lymphoid organs. Rag2−/−γc−/−...

Stable reduction of CCR5 by RNAi through hematopoietic stem cell transplant in non-human primates

An, Dong Sung, Donahue, Robert E., Kamata, Masakazu, Poon, Betty, Metzger, Mark, Mao, Si-Hua, ...

RNAi is a powerful method for suppressing gene expression that has tremendous potential for therapeutic applications. However, because endogenous RNAi plays a role in normal cellular functions,...