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A recombinant live attenuated measles vaccine vector primes effective HLA-A0201-restricted cytotoxic T lymphocytes and broadly neutralizing antibodies against HIV-1 conserved epitopes.

Abstract : Live attenuated measles vaccine (MV) could provide a safe and efficient pediatric vaccination vector to immunize children simultaneously against measles and human immunodeficiency virus type 1 (HIV-1). To evaluate the capacity of a vector derived from the certified Schwarz measles vaccine (MVSchw) to prime effective cytotoxic T cells (CTL) and broad neutralizing antibodies against HIV-1 conserved epitopes, we generated recombinant MVSchw viruses expressing HIV-1 antigens. We demonstrate that a recombinant MVSchw virus expressing an HIV-1-derived CTL polyepitope primes effective HLA-A0201-restricted CTLs against multiple conserved HIV-1 epitopes in mice susceptible to measles and humanized for the major histocompatibility complex (MHC) class-I molecule HLA-A0201. Additionally, we show that a recombinant MVSchw virus expressing an HIV-1(89.6) gp140 glycoprotein whose hyper variable V1, V2 and V3 loops were deleted (DeltaV1V2V3gp140), induces broadly neutralizing antibodies against HIV-1 primary isolates. These results show that the MVSchw pediatric vaccination vector induces efficient cellular and humoral HIV-specific immune responses.
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https://hal-pasteur.archives-ouvertes.fr/pasteur-00013659
Contributor : Mireille Gau <>
Submitted on : Wednesday, November 9, 2005 - 4:55:50 PM
Last modification on : Monday, January 13, 2020 - 5:08:05 PM

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Clarisse Lorin, Frédéric Delebecque, Valérie Labrousse, Lucie da Silva, François Lemonnier, et al.. A recombinant live attenuated measles vaccine vector primes effective HLA-A0201-restricted cytotoxic T lymphocytes and broadly neutralizing antibodies against HIV-1 conserved epitopes.. Vaccine, Elsevier, 2005, 23 (36), pp.4463-72. ⟨10.1016/j.vaccine.2005.04.024⟩. ⟨pasteur-00013659⟩

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