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Inhibition of human T-cell leukemia virus type 1 replication by antisense env oligodeoxynucleotide. 1998

N Maeda, and T Kawamura, and H Hoshino, and N Yamada, and J Blackard, and S Kushida, and N Miyano-Kurosaki, and N Yamamoto, and K Makino, and T Yokota, and K Uchida, and M Miwa
Department of Biochemistry and Molecular Oncology, University of Tsukuba, Japan.

Human T-cell leukemia virus type 1 (HTLV-1) infection is associated with adult T-cell leukemia and HTLV-associated myelopathy/tropical spastic paraparesis. Inhibition of HTLV-1 transmission is important to prevent the above HTLV-1-associated diseases. We used the antisense oligodeoxynucleotides (oligos) complementary to the first splice junction, rex responsive site, gag, env, tax, rex, and p21 and evaluated the effects on the syncytium formation between HTLV-1 producing human T-cell line, C9/PL cells, and HTLV-1-uninfected human glioma cell line, U251-MG cells. The syncytium formation was significantly inhibited the virion production assayed by antisense oligos to env, tax, gag, p21, and rex, with antisense oligo to env being the most inhibitory. Antisense oligos to env and tax also inhibited reverse transcriptase activity. Antisense oligo to env may have a potential as a preventive measure of HTLV-1 replication and transmission in vivo.

UI MeSH Term Description Entries
D002460 Cell Line Established cell cultures that have the potential to propagate indefinitely. Cell Lines,Line, Cell,Lines, Cell
D003588 Cytopathogenic Effect, Viral Visible morphologic changes in cells infected with viruses. It includes shutdown of cellular RNA and protein synthesis, cell fusion, release of lysosomal enzymes, changes in cell membrane permeability, diffuse changes in intracellular structures, presence of viral inclusion bodies, and chromosomal aberrations. It excludes malignant transformation, which is CELL TRANSFORMATION, VIRAL. Viral cytopathogenic effects provide a valuable method for identifying and classifying the infecting viruses. Cytopathic Effect, Viral,Viral Cytopathogenic Effect,Cytopathic Effects, Viral,Cytopathogenic Effects, Viral,Effect, Viral Cytopathic,Effect, Viral Cytopathogenic,Effects, Viral Cytopathic,Effects, Viral Cytopathogenic,Viral Cytopathic Effect,Viral Cytopathic Effects,Viral Cytopathogenic Effects
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001483 Base Sequence The sequence of PURINES and PYRIMIDINES in nucleic acids and polynucleotides. It is also called nucleotide sequence. DNA Sequence,Nucleotide Sequence,RNA Sequence,DNA Sequences,Base Sequences,Nucleotide Sequences,RNA Sequences,Sequence, Base,Sequence, DNA,Sequence, Nucleotide,Sequence, RNA,Sequences, Base,Sequences, DNA,Sequences, Nucleotide,Sequences, RNA
D014779 Virus Replication The process of intracellular viral multiplication, consisting of the synthesis of PROTEINS; NUCLEIC ACIDS; and sometimes LIPIDS, and their assembly into a new infectious particle. Viral Replication,Replication, Viral,Replication, Virus,Replications, Viral,Replications, Virus,Viral Replications,Virus Replications
D015368 Human T-lymphotropic virus 1 A strain of PRIMATE T-LYMPHOTROPIC VIRUS 1 isolated from mature T4 cells in patients with T-lymphoproliferation malignancies. It causes adult T-cell leukemia (LEUKEMIA-LYMPHOMA, T-CELL, ACUTE, HTLV-I-ASSOCIATED), T-cell lymphoma (LYMPHOMA, T-CELL), and is involved in mycosis fungoides, SEZARY SYNDROME and tropical spastic paraparesis (PARAPARESIS, TROPICAL SPASTIC). ATLV,Adult T-Cell Leukemia-Lymphoma Virus I,HTLV-1,HTLV-I,Human T-Cell Leukemia Virus I,Leukemia Virus I, Human T-Cell,T-Cell Leukemia Virus I, Human,Adult T Cell Leukemia Lymphoma Virus I,Human T Cell Leukemia Virus I,Leukemia Lymphoma Virus I, Adult T Cell,Leukemia Virus I, Human T Cell,T Cell Leukemia Virus I, Human,Human T lymphotropic virus 1
D015490 HTLV-I Infections Diseases caused by HUMAN T-LYMPHOTROPIC VIRUS 1. Human T-lymphotropic Virus 1 Infection,Human T-lymphotropic Virus 1 Infections,Infections, HTLV-I,HTLV I Infections,HTLV-I Infection,Human T lymphotropic Virus 1 Infection,Human T lymphotropic Virus 1 Infections,Infection, HTLV-I,Infections, HTLV I
D015750 Genes, gag DNA sequences that form the coding region for proteins associated with the viral core in retroviruses. gag is short for group-specific antigen. gag Genes,gag Gene,Gene, gag
D015752 Genes, env DNA sequences that form the coding region for the viral envelope (env) proteins in retroviruses. The env genes contain a cis-acting RNA target sequence for the rev protein ( HIV rev-Responsive Element,env Genes,rev-Responsive Element,env Gene,Element, HIV rev-Responsive,Element, rev-Responsive,Elements, HIV rev-Responsive,Elements, rev-Responsive,Gene, env,HIV rev Responsive Element,HIV rev-Responsive Elements,rev Responsive Element,rev-Responsive Element, HIV,rev-Responsive Elements,rev-Responsive Elements, HIV
D016355 Genes, pX DNA sequences that form the coding region for at least three proteins which regulate the expression of HUMAN T-LYMPHOTROPIC VIRUS 1 and HUMAN T-LYMPHOTROPIC VIRUS 2. The proteins are p21(x), p27(rex), and p40(tax). The tax (trans-activator x) and rex (regulator x) genes are part of pX but are in overlapping reading frames. X was the original designation for the sequences or region (at that time of unknown function) in the long open reading frame (lor) which is now called pX. Genes, rex,Genes, tax,HTLV-I rex Genes,HTLV-I tax Genes,HTLV-II rex Genes,HTLV-II tax Genes,pX Genes,rex Genes,tax Genes,Genes, lor,Gene, HTLV-I rex,Gene, HTLV-I tax,Gene, HTLV-II rex,Gene, HTLV-II tax,Gene, lor,Gene, pX,Gene, rex,Gene, tax,Genes, HTLV-I rex,Genes, HTLV-I tax,Genes, HTLV-II rex,Genes, HTLV-II tax,HTLV I rex Genes,HTLV I tax Genes,HTLV II rex Genes,HTLV II tax Genes,HTLV-I rex Gene,HTLV-I tax Gene,HTLV-II rex Gene,HTLV-II tax Gene,lor Gene,lor Genes,pX Gene,rex Gene,rex Gene, HTLV-I,rex Gene, HTLV-II,rex Genes, HTLV-I,rex Genes, HTLV-II,tax Gene,tax Gene, HTLV-I,tax Gene, HTLV-II,tax Genes, HTLV-I,tax Genes, HTLV-II

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