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Vaccines (Basel). 2017 Dec 19;5(4). doi: 10.3390/vaccines5040052.

Vaccination with Combination DNA and Virus-Like Particles Enhances Humoral and Cellular Immune Responses upon Boost with Recombinant Modified Vaccinia Virus Ankara Expressing Human Immunodeficiency Virus Envelope Proteins.

Vaccines

Sailaja Gangadhara, Young-Man Kwon, Subbiah Jeeva, Fu-Shi Quan, Baozhong Wang, Bernard Moss, Richard W Compans, Rama Rao Amara, M Abdul Jabbar, Sang-Moo Kang

Affiliations

  1. Department of Microbiology and Immunology, Emory Vaccine Center, Emory University School of Medicine, 1510 Clifton Rd., Atlanta, GA 30322, USA. [email protected].
  2. Center for Inflammation, Immunity & Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA 30303, USA. [email protected].
  3. Center for Inflammation, Immunity & Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA 30303, USA. [email protected].
  4. Department of Medical Zoology, Kyung Hee University School of Medicine, Seoul 130-705, Korea. [email protected].
  5. Center for Inflammation, Immunity & Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA 30303, USA. [email protected].
  6. Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA. [email protected].
  7. Department of Microbiology and Immunology, Emory Vaccine Center, Emory University School of Medicine, 1510 Clifton Rd., Atlanta, GA 30322, USA. [email protected].
  8. Department of Microbiology and Immunology, Emory Vaccine Center, Emory University School of Medicine, 1510 Clifton Rd., Atlanta, GA 30322, USA. [email protected].
  9. Department of Microbiology and Immunology, Emory Vaccine Center, Emory University School of Medicine, 1510 Clifton Rd., Atlanta, GA 30322, USA. [email protected].
  10. Center for Inflammation, Immunity & Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA 30303, USA. [email protected].

PMID: 29257056 PMCID: PMC5748618 DOI: 10.3390/vaccines5040052

Abstract

Heterologous prime boost with DNA and recombinant modified vaccinia virus Ankara (rMVA) vaccines is considered as a promising vaccination approach against human immunodeficiency virus (HIV-1). To further enhance the efficacy of DNA-rMVA vaccination, we investigated humoral and cellular immune responses in mice after three sequential immunizations with DNA, a combination of DNA and virus-like particles (VLP), and rMVA expressing HIV-1 89.6 gp120 envelope proteins (Env). DNA prime and boost with a combination of VLP and DNA vaccines followed by an rMVA boost induced over a 100-fold increase in Env-specific IgG antibody titers compared to three sequential immunizations with DNA and rMVA. Cellular immune responses were induced by VLP-DNA and rMVA vaccinations at high levels in CD8 T cells, CD4 T cells, and peripheral blood mononuclear cells secreting interferon (IFN)-γ, and spleen cells producing interleukin (IL)-2, 4, 5 cytokines. This study suggests that a DNA and VLP combination vaccine with MVA is a promising strategy in enhancing the efficacy of DNA-rMVA vaccination against HIV-1.

Keywords: DNA; HIV vaccines; VLPs; recombinant MVA

Conflict of interest statement

The authors declare no conflict of interest.

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