R M Hesselton

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A detailed, longitudinal study was undertaken to investigate the immunological and virological features of an individual with hemophilia infected with human immunodeficiency virus type-1 (HIV-1) for 10 years without disease. Methods applied to serial samples of peripheral blood included Western blot analysis, neutralizing antibody assays, antibody-dependent(More)
Inbred C.B-17-scid/scid mice accept human peripheral blood mononuclear cell (PBMC) xenografts and are susceptible to human immunodeficiency virus type 1 (HIV-1) infection, but low levels of PBMC engraftment impede use of this system in HIV research. This report describes the effect of host strain background on human PBMC engraftment and HIV infectivity in(More)
Experimental infection with Herpesvirus sylvilagus produces clinical and histopathologic changes in its natural host, the cottontail rabbit (Sylvilagus floridanus), similar to those observed in humans acutely infected with Epstein-Barr virus (EBV). Twenty-seven seronegative cottontail rabbits were infected with Herpesvirus sylvilagus and all developed(More)
Human lymphoematopoietic stem cells engraft in irradiated immunodeficient mice that are homozygous for the severe combined immunodeficiency (scid) mutation. Engraftment levels in C.B-17-scid/scid mice, however, have been low and transient, decreasing the utility of this model for investigation of the development potential and function of human stem cells.(More)
When used as hosts in passive transfer experiments, a stock of NOD/Lt mice congenic for the severe combined immunodeficiency (scid) mutation have provided great insight to the contributions of various T-cell populations in the pathogenesis of autoimmune insulin-dependent diabetes mellitus (IDDM). Moreover, NOD-scid mice support higher levels of human(More)
Immunologic changes produced by Herpesvirus sylvilagus infection of cottontail rabbits were investigated to evaluate this virus infection system as an animal model for EBV infection in humans. H. sylvilagus neutralizing antibodies appeared as early as 7 days after infection, peaked 2 to 4 wk postinfection and decreased to low levels by 8 to 10 wk(More)
Herpesvirus saimiri is a primate tumor virus that induces acute T-cell lymphomas in New World monkeys. Strains of this virus have been previously classified into three groups on the basis of extreme DNA variability of the rightmost region of unique L-DNA. To compare the oncogenic potentials of various strains, we inoculated New Zealand White rabbits with(More)
Immune reconstitutions (hu-PBL-SCID mice) resulting from adoptive transfer of human peripheral blood mononuclear cells into 1800 C.B-17 scid-/scid-mice were characterized. Over 90% of reconstitutions were successful as evidenced by human immunoglobulin production. Variability was noted with donor, cell number, and cell type. Human cells (T lymphocytes, few(More)
T and B lymphocyte-deficient mice homozygous for the severe combined immunodeficiency (SCID) mutation can be immunologically engrafted with human lymphocytes. However, low levels of human peripheral blood mononuclear cell engraftment are commonly observed, impeding full use of this model. We now demonstrate that strain background in mice homozygous for the(More)
Development of a small animal model for the in vivo study of human immunity and infectious disease remains an important goal, particularly for investigations of HIV vaccine development. NOD/Lt mice homozygous for the severe combined immunodeficiency (Prkdc scid) mutation readily support engraftment with high levels of human hematolymphoid cells. However,(More)