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Berlin Brandenburg

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  • 1
    Language: English
    In: The Journal of Infectious Diseases, 1 September 2000, Vol.182(3), pp.643-651
    Description: In fibroblasts, infection with human cytomegalovirus (HCMV) inhibits expression of the extracellular matrix proteins thrombospondin-1 and -2 (TSP-1 and TSP-2). These effects may depend on expression of HCMV immediate-early (IE) genes, which are activated by cellular transcription factor NF-kB. The influence of HCMV infection on TSP-1 and TSP-2 expression and the ability of different antiviral drugs to prevent these cellular changes in permissive cultures of human retinal glial cells were observed. Ganciclovir inhibited only HCMV late antigen (LA) expression, whereas antisense oligonucleotide ISIS 2922 and peptide SN50, inhibitors of HCMV IE expression and NF-kB activity, respectively, inhibited both IE and LA expression. ISIS 2922 and SN50, but not ganciclovir, prevented down-modulation of TSP1 and TSP-2. The results showed that HCMV-induced down-modulation of TSP-1 and TSP2 in retinal glial cells is prevented by inhibition of HCMV IE expression. These findings may be relevant to pathogenesis and treatment of HCMV retinitis.
    Keywords: Biological sciences -- Biology -- Cytology ; Biological sciences -- Biology -- Microbiology ; Health sciences -- Medical sciences -- Pharmaceutics ; Biological sciences -- Biology -- Microbiology ; Health sciences -- Medical conditions -- Infections ; Biological sciences -- Biochemistry -- Biomolecules ; Physical sciences -- Chemistry -- Chemical compounds ; Biological sciences -- Biology -- Cytology ; Biological sciences -- Biology -- Cytology ; Health sciences -- Medical conditions -- Diseases
    ISSN: 00221899
    E-ISSN: 15376613
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