thy/liv-SCID-hu mice: A system for investigating the in vivo effects of multidrug therapy on plasma viremia and human immunodeficiency virus replication in lymphoid tissues

Massimo Pettoello-Mantovani, Tobias R. Kollmann, Nikos F. Katopodis, Christina Raker, Ana Kim, Sergey Yurasov, Hugh Wiltshire, Harris Goldstein

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21 Scopus citations


Modified, human immunodeficiency virus (HIV)-inoculated thy/liv-SCID-hu mice were used to evaluate the in vivo efficacy of antiretroviral drugs. Ritonavir treatment alone initially suppressed plasma viremia, but the viremia recurred with the appearance of ritonavir-resistant HIV isolates. Multidrug therapy suppressed plasma HIV RNA to undetectable levels; however, plasma viremia returned after therapy was stopped, showing that the therapy did not completely suppress HIV infection in the thymic implant. When thy/liv-SCID-hu mice were treated with a combination of zidovudine, lamivudine, and ritonavir immediately after inoculation with HIV, cocultures of the thymic implants remained negative for HIV even 1 month after therapy was discontinued, suggesting that acute treatment can prevent the establishment of HIV infection. Thus, these modified thy/liv-SCID-hu mice should prove to be a useful system for evaluating the effectiveness of different antiretroviral therapies on acute and chronic HIV infection.

Original languageEnglish (US)
Pages (from-to)337-346
Number of pages10
JournalJournal of Infectious Diseases
Issue number2
Publication statusPublished - Jan 1 1998


ASJC Scopus subject areas

  • Immunology and Allergy
  • Infectious Diseases

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