The interleukin-2 fusion protein, DAB389IL-2, inhibits the development of infectious virus in human immunodeficiency virus type 1-infected human peripheral blood mononuclear cells. 1997

L J Zhang, and C A Waters, and L R Poisson, and L F Estis, and C S Crumpacker
Division of Infectious Diseases, Beth Israel Hospital, Boston, Massachusetts 02215, USA.

DAB389IL-2 is a genetically engineered fusion protein that reduces human immunodeficiency virus type 1 (HIV-1) replication in activated, interleukin (IL)-2 receptor (IL-2R)-expressing human peripheral blood mononuclear cells (PBMC). The level of infectious virus released by cultured PBMC after treatment with DAB389IL-2 was measured by a quantitative microculture assay. The inhibition of p24 antigen production was also evaluated in cultures that differed in duration of infection and activation state. Although the activation state of the cell and the time of DAB389IL-2 addition to the cultures influenced its anti-HIV activity, DAB389IL-2 treatment decreased levels of infectious HIV-1 to 0.1%-6.5% of untreated cell levels. DAB389IL-2 also decreased p24 antigen expression to 10%-48% of controls, even when added as late as 8 days after acute infection. Mutational variants of DAB389IL-2 that lack catalytic activity or IL-2R binding are without anti-HIV activity.

UI MeSH Term Description Entries
D007376 Interleukin-2 A soluble substance elaborated by antigen- or mitogen-stimulated T-LYMPHOCYTES which induces DNA synthesis in naive lymphocytes. IL-2,Lymphocyte Mitogenic Factor,T-Cell Growth Factor,TCGF,IL2,Interleukin II,Interleukine 2,RU 49637,RU-49637,Ro-23-6019,Ro-236019,T-Cell Stimulating Factor,Thymocyte Stimulating Factor,Interleukin 2,Mitogenic Factor, Lymphocyte,RU49637,Ro 23 6019,Ro 236019,Ro236019,T Cell Growth Factor,T Cell Stimulating Factor
D007963 Leukocytes, Mononuclear Mature LYMPHOCYTES and MONOCYTES transported by the blood to the body's extravascular space. They are morphologically distinguishable from mature granulocytic leukocytes by their large, non-lobed nuclei and lack of coarse, heavily stained cytoplasmic granules. Mononuclear Leukocyte,Mononuclear Leukocytes,PBMC Peripheral Blood Mononuclear Cells,Peripheral Blood Human Mononuclear Cells,Peripheral Blood Mononuclear Cell,Peripheral Blood Mononuclear Cells,Leukocyte, Mononuclear
D011993 Recombinant Fusion Proteins Recombinant proteins produced by the GENETIC TRANSLATION of fused genes formed by the combination of NUCLEIC ACID REGULATORY SEQUENCES of one or more genes with the protein coding sequences of one or more genes. Fusion Proteins, Recombinant,Recombinant Chimeric Protein,Recombinant Fusion Protein,Recombinant Hybrid Protein,Chimeric Proteins, Recombinant,Hybrid Proteins, Recombinant,Recombinant Chimeric Proteins,Recombinant Hybrid Proteins,Chimeric Protein, Recombinant,Fusion Protein, Recombinant,Hybrid Protein, Recombinant,Protein, Recombinant Chimeric,Protein, Recombinant Fusion,Protein, Recombinant Hybrid,Proteins, Recombinant Chimeric,Proteins, Recombinant Fusion,Proteins, Recombinant Hybrid
D004167 Diphtheria Toxin An ADP-ribosylating polypeptide produced by CORYNEBACTERIUM DIPHTHERIAE that causes the signs and symptoms of DIPHTHERIA. It can be broken into two unequal domains: the smaller, catalytic A domain is the lethal moiety and contains MONO(ADP-RIBOSE) TRANSFERASES which transfers ADP RIBOSE to PEPTIDE ELONGATION FACTOR 2 thereby inhibiting protein synthesis; and the larger B domain that is needed for entry into cells. Corynebacterium Diphtheriae Toxin,Toxin, Corynebacterium Diphtheriae
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D015375 Receptors, Interleukin-2 Receptors present on activated T-LYMPHOCYTES and B-LYMPHOCYTES that are specific for INTERLEUKIN-2 and play an important role in LYMPHOCYTE ACTIVATION. They are heterotrimeric proteins consisting of the INTERLEUKIN-2 RECEPTOR ALPHA SUBUNIT, the INTERLEUKIN-2 RECEPTOR BETA SUBUNIT, and the INTERLEUKIN RECEPTOR COMMON GAMMA-CHAIN. IL-2 Receptors,Interleukin-2 Receptor,Interleukin-2 Receptors,Receptors, IL-2,Receptors, T-Cell Growth Factor,T-Cell Growth Factor Receptors,IL-2 Receptor,IL2 Receptor,IL2 Receptors,Interleukin 2 Receptor,Receptor, TCGF,T-Cell Growth Factor Receptor,TCGF Receptor,TCGF Receptors,IL 2 Receptor,IL 2 Receptors,Interleukin 2 Receptors,Receptor, IL-2,Receptor, IL2,Receptor, Interleukin 2,Receptor, Interleukin-2,Receptors, IL 2,Receptors, IL2,Receptors, Interleukin 2,Receptors, T Cell Growth Factor,Receptors, TCGF,T Cell Growth Factor Receptor,T Cell Growth Factor Receptors
D015497 HIV-1 The type species of LENTIVIRUS and the etiologic agent of AIDS. It is characterized by its cytopathic effect and affinity for the T4-lymphocyte. Human immunodeficiency virus 1,HIV-I,Human Immunodeficiency Virus Type 1,Immunodeficiency Virus Type 1, Human
D016655 HIV Core Protein p24 A major core protein of the human immunodeficiency virus encoded by the HIV gag gene. HIV-seropositive individuals mount a significant immune response to p24 and thus detection of antibodies to p24 is one basis for determining HIV infection by ELISA and Western blot assays. The protein is also being investigated as a potential HIV immunogen in vaccines. HIV Major Core Protein p24,HIV gag Gene Product p24,HIV p24 Antigen,gag Protein p24, HIV,p24(HIV),HIV Protein p24,HTLV-III p24,p24 protein, Human Immunodeficiency Virus,HTLV III p24,p24 Antigen, HIV,p24, HIV Protein,p24, HTLV-III
D019380 Anti-HIV Agents Agents used to treat AIDS and/or stop the spread of the HIV infection. These do not include drugs used to treat symptoms or opportunistic infections associated with AIDS. AIDS Drug,AIDS Drugs,Anti-AIDS Agents,Anti-AIDS Drug,Anti-HIV Agent,Anti-HIV Drug,Anti-AIDS Drugs,Anti-HIV Drugs,Agent, Anti-HIV,Agents, Anti-AIDS,Agents, Anti-HIV,Anti AIDS Agents,Anti AIDS Drug,Anti AIDS Drugs,Anti HIV Agent,Anti HIV Agents,Anti HIV Drug,Anti HIV Drugs,Drug, AIDS,Drug, Anti-AIDS,Drug, Anti-HIV,Drugs, AIDS,Drugs, Anti-AIDS,Drugs, Anti-HIV

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