Abstract
Expansion of CD4 lymphocytes from human immunodeficiency virus type 1 (HIV-1)-infected persons ex vivo has been limited by enhanced virus replication and cell death. The successful expansion of functional CD4 lymphocytes from HIV-1-infected persons has now been accomplished using a bispecific monoclonal antibody to CD3 and CD8 in combination with three antiretroviral agents. CD4 lymphocytes were polyclonally expanded by a factor of 10(3)-10(7) during 4-8 weeks in culture. Supernatants from most cultures were persistently HIV-1 p24 antigen-negative by day 14 and remained negative despite removal of antiretroviral agents at day 28. In such cultures, HIV-1 could not be recovered by cocultivation, and amounts of HIV-1 DNA declined or remained stable at low levels, eventually becoming undetectable in 2 cases. This approach establishes the feasibility of CD4 lymphocyte expansion in persons with HIV disease and may be useful for immune-based or gene therapies.
Publication types
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Comparative Study
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Research Support, Non-U.S. Gov't
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Research Support, U.S. Gov't, P.H.S.
MeSH terms
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Acquired Immunodeficiency Syndrome / drug therapy
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Acquired Immunodeficiency Syndrome / immunology*
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Acquired Immunodeficiency Syndrome / virology
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Antiviral Agents / therapeutic use*
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Base Sequence
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CD4 Lymphocyte Count*
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CD4-Positive T-Lymphocytes / drug effects
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CD4-Positive T-Lymphocytes / immunology*
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Cells, Cultured
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DNA Primers
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DNA, Viral / blood*
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Drug Therapy, Combination
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HIV Infections / drug therapy
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HIV Infections / immunology*
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HIV Infections / virology
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HIV Long Terminal Repeat
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HIV Reverse Transcriptase
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HIV Seropositivity / drug therapy
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HIV Seropositivity / immunology*
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HIV Seropositivity / virology
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HIV-1* / genetics
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HIV-1* / isolation & purification
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Humans
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Lymphocyte Activation
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Molecular Sequence Data
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Polymerase Chain Reaction / methods
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RNA-Directed DNA Polymerase / genetics
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Receptors, Antigen, T-Cell, alpha-beta / analysis
Substances
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Antiviral Agents
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DNA Primers
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DNA, Viral
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Receptors, Antigen, T-Cell, alpha-beta
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HIV Reverse Transcriptase
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RNA-Directed DNA Polymerase