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- W2098857166 abstract "We report here the results of studies examining the ability of zidovudine (AZT) to influence the establishment and maintenance of long-term marrow cultures (LTMC) using marrow from murine immunodeficient mice (MAIDS). Normal C57BL6 mice were infected with LP-BM5 (MuLV) immunodeficiency virus (10 micrograms total protein) intraperitoneally. Five weeks after viral infection, mice were sacrificed and marrow was harvested from normal non-virus-infected and virus-infected animals. LTMC were established in the presence or absence of dose escalation of AZT, that is, 10(-6), 5 x 10(-7), and 10(-7) M in vitro. Compared with controls prepared from normal bone marrow, LTMC using MAIDS-infected marrow failed to establish and subsequently release supernatant-derived mononuclear cells. The addition of AZT was ineffective in either establishing LTMC or consistently producing mononuclear cells. Measurements of erythroid (BFU-E), myeloid (CFU-GM), and megakaryocyte (CFU-Meg) precursors were all depressed and none were observed after 5 weeks of culture. Treatment with AZT failed to reverse this depression of stem cell progenitors. Microscopic examination of cultures at 10 weeks demonstrated a failure of MAIDS-LTMC to establish an adequate stromal layer compared to LTMC prepared form non-virus-infected controls. This data indicate that LP-BM5 MuLV infection alters the establishment of a normal functioning hematopoietic microenvironment or stroma. Acknowledging that important differences between MAIDS and human AIDS exist, the implications of these findings concerning the establishment of the immunodeficiency disease state in human immunodeficiency virus infection is discussed." @default.
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- W2098857166 date "1993-06-01" @default.
- W2098857166 modified "2023-09-27" @default.
- W2098857166 title "Failure to establish long-term marrow cultures from immunodeficient mice (MAIDS): effect of zidovudine in vitro" @default.
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- W2098857166 doi "https://doi.org/10.1002/jlb.53.6.658" @default.
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