title: Nonhuman primate models for HIV/AIDS vaccine development.
abstract: The development of HIV vaccines has been hampered by the lack of an animal model that can accurately predict vaccine efficacy. Chimpanzees can be infected with HIV-1 but are not practical for research. However, several species of macaques are susceptible to the simian immunodeficiency viruses (SIVs) that cause disease in macaques, which also closely mimic HIV in humans. Thus, macaque-SIV models of HIV infection have become a critical foundation for AIDS vaccine development. Here we examine the multiple variables and considerations that must be taken into account in order to use this nonhuman primate (NHP) model effectively. These include the species and subspecies of macaques, virus strain, dose and route of administration, and macaque genetics, including the major histocompatibility complex molecules that affect immune responses, and other virus restriction factors. We illustrate how these NHP models can be used to carry out studies of immune responses in mucosal and other tissues that could not easily be performed on human volunteers. Furthermore, macaques are an ideal model system to optimize adjuvants, test vaccine platforms, and identify correlates of protection that can advance the HIV vaccine field. We also illustrate techniques used to identify different macaque lymphocyte populations and review some poxvirus vaccine candidates that are in various stages of clinical trials. Understanding how to effectively use this valuable model will greatly increase the likelihood of finding a successful vaccine for HIV.
authors: Vaccine Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland.|These authors contributed equally.
authors: Yongjun
authors: Y
authors: Sui
authors: Vaccine Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland.|These authors contributed equally.
authors: Shari
authors: S
authors: Gordon
authors: Vaccine Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland.|These authors contributed equally.
authors: Genoveffa
authors: G
authors: Franchini
authors: Vaccine Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland.|These authors contributed equally.
authors: Jay A
authors: JA
authors: Berzofsky
mesh_terms: D016915:AIDS Vaccines; D000818:Animals; D002986:Clinical Trials as Topic; D004195:Disease Models, Animal; D055808:Drug Discovery; D006678:HIV / Q000276:immunology*; D015658:HIV Infections / Q000276:immunology* / Q000517:prevention & control; D006649:Histocompatibility Antigens / Q000235:genetics / Q000378:metabolism; D006801:Humans; D011323:Primates; D018449:SAIDS Vaccines; D016097:Simian Acquired Immunodeficiency Syndrome / Q000276:immunology* / Q000517:prevention & control; D015302:Simian Immunodeficiency Virus / Q000276:immunology*
chemical_list: D016915:AIDS Vaccines; D006649:Histocompatibility Antigens; D018449:SAIDS Vaccines
keywords: SIV; T cell immunity; animal models; macaques; nonhuman primates; vaccines