Mcmv
Mostrando 13-24 de 171 artigos, teses e dissertações.
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13. Detection of murine cytomegalovirus DNA in circulating leukocytes harvested during acute infection of mice.
We used virus assay and in situ hybridization with a cloned fragment of the murine cytomegalovirus (MCMV) genome to study MCMV infection of circulating leukocytes harvested from 3-week-old BALB/c, C57BL/6, and C3H mice infected with MCMV intraperitoneally. Infectious virus or MCMV DNA was detected in leukocytes on days 1 through 21 of infection in BALB/c mic
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14. Mucosal and Parenteral Vaccination against Acute and Latent Murine Cytomegalovirus (MCMV) Infection by Using an Attenuated MCMV Mutant
We used a live attenuated murine cytomegalovirus (MCMV) mutant to analyze mechanisms of vaccination against acute and latent CMV infection. We selected MCMV mutant RV7 as a vaccine candidate since this virus grows well in tissue culture but is profoundly attenuated for growth in normal and severe combined immunodeficient (SCID) mice (V. J. Cavanaugh et al.,
American Society for Microbiology.
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15. Murine cytomegalovirus paralyzes macrophages by blocking IFNγ-induced promoter assembly
Macrophages (Mϕ) are activated by IFNγ and are important cellular targets for infection by human and murine cytomegalovirus (MCMV), making it advantageous for CMVs to block IFNγ-induced Mϕ differentiation. We found that MCMV infection inhibited IFNγ regulation of many genes in Mϕ. MCMV infection blocked IFNγ responses at the level of transcription wit
National Academy of Sciences.
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16. Detection of antibody to murine cytomegalovirus by enzyme-linked immunosorbent and indirect immunofluorescence assays.
We have compared murine cytomegalovirus (MCMV) antibody determination by enzyme-linked immunosorbent assay (ELISA) and indirect immunofluorescence assay. A comparison of antibody detection with 146 serum samples at a 1:20 dilution showed 100% agreement (60 negatives and 86 positives) between the assays. There was close agreement of endpoint determinations of
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17. Murine cytomegalovirus-associated pneumonitis in the lungs free of the virus.
At 4 wk after intraperitoneal inoculation of murine cytomegalovirus (MCMV) in adult BALB/c mice, MCMV remained detectable only in the salivary glands. When T cells of these mice were activated by a single injection of anti-CD3 epsilon monoclonal antibody, mice died of interstitial pneumonitis at 24-48 h after injection, accompanied by elevation of serum leve
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18. Natural Cytotoxicity to Murine Cytomegalovirus-Infected Cells Mediated by Mouse Lymphoid Cells: Role of Interferon in the Endogenous Natural Cytotoxicity Reaction
Lymphoid cells from unstimulated normal C57BL/6J mice were shown to lyse murine cytomegalovirus (MCMV)-infected syngeneic mouse embryo fibroblasts but not uninfected mouse embryo fibroblasts. This cytotoxicity by mouse effector cells was not restricted to MCMV-infected syngeneic cells since MCMV-infected xenogeneic rat heart fibroblasts were also lysed. Char
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19. Latent Cytomegalovirus Infection Exacerbates Experimental Colitis
Inflammatory bowel disease (IBD) severity is positively correlated with cytomegalovirus (CMV) infection. This may reflect CMV triggering and/or exacerbating flares of IBD and/or IBD or immunosuppressive drugs administered to patients with IBD increasing susceptibility to CMV infection. Herein, we performed studies in mice to investigate these possibilities.
American Society for Investigative Pathology.
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20. Surveillance of mice for antibodies to murine cytomegalovirus.
The sera of 256 mice from nine commercial sources were screened for antibodies to murine cytomegalovirus (MCMV) because a surveillance of this virus has not been reported in the literature for over a decade. Although no evidence of antibodies to MCMV were detected by complement fixation or nuclear anticomplement immunofluorescence, 54.7% of these sera did ha
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21. A nonstructural viral protein expressed by a recombinant vaccinia virus protects against lethal cytomegalovirus infection.
The nonstructural immediate-early protein pp89 of murine cytomegalovirus (MCMV) is the first viral protein synthesized after infection and has a regulatory function in viral gene expression. Despite its localization in the nucleus of infected cells, pp89 is also the dominant antigen recognized by MCMV-specific cytolytic T lymphocytes. The recombinant vaccini
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22. Synergistic effect on mortality in mice with murine cytomegalovirus and Pseudomonas aeruginosa, Staphylococcus aureus, or Candida albicans infections.
A synergistic effect on mortality was demonstrated in a combined infection of mice with murine cytomegalovirus (MCMV) and Pseudomonas aeruginosa, Staphylococcus aureus, or Candida albicans. Mice infected intraperitoneally with a 0 to 20% lethal dose inoculum of MCMV 3 days prior to the intravenous injection of a 0 to 20% lethal dose inoculum of either the ba
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23. An early event in murine cytomegalovirus replication inhibits presentation of cellular antigens to cytotoxic T lymphocytes.
Cytomegalovirus (CMV) infection of simian virus 40 (SV40)-immune mice inhibits priming of SV40-specific helper and cytotoxic T lymphocytes (CTL) in vivo (A. E. Campbell, J. S. Slater, and W. S. Futch, Virology 173:268-275, 1989; J. S. Slater, W. S. Futch, V. J. Cavanaugh and A. E. Campbell, Virology 185:132-139, 1991). We now demonstrate that murine CMV (MCM
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24. Enhancer Requirement for Murine Cytomegalovirus Growth and Genetic Complementation by the Human Cytomegalovirus Enhancer†
The cytomegalovirus (CMV) enhancer is a highly complex regulatory region containing multiple elements that interact with a variety of host-encoded transcription factors. Many of these sequence elements are conserved among the different species strains of CMV, although the arrangement of the various elements and overall sequence composition of the CMV enhance
American Society for Microbiology.