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联合DNA和病毒样颗粒疫苗接种可增强在以表达人免疫缺陷病毒包膜蛋白的重组改良安卡拉痘苗病毒加强免疫时的体液免疫和细胞免疫反应。

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.

作者信息

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

机构信息

Department of Microbiology and Immunology, Emory Vaccine Center, Emory University School of Medicine, 1510 Clifton Rd., Atlanta, GA 30322, USA.

Center for Inflammation, Immunity & Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA 30303, USA.

出版信息

Vaccines (Basel). 2017 Dec 19;5(4):52. 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.

摘要

用DNA疫苗和重组改良安卡拉痘苗病毒(rMVA)疫苗进行异源初免-加强免疫被认为是一种有前景的抗人类免疫缺陷病毒(HIV-1)疫苗接种方法。为进一步提高DNA-rMVA疫苗接种的效力,我们在小鼠中依次用DNA、DNA与病毒样颗粒(VLP)的组合以及表达HIV-1 89.6 gp120包膜蛋白(Env)的rMVA进行三次免疫后,研究了体液免疫和细胞免疫反应。与用DNA和rMVA进行三次连续免疫相比,先用DNA初免,再用VLP与DNA疫苗的组合进行加强免疫,随后用rMVA加强免疫,可使Env特异性IgG抗体滴度提高100倍以上。VLP-DNA和rMVA疫苗接种在分泌干扰素(IFN)-γ的CD8 T细胞、CD4 T细胞和外周血单个核细胞以及产生白细胞介素(IL)-2、4、5细胞因子的脾细胞中高水平诱导细胞免疫反应。本研究表明,DNA与VLP的联合疫苗以及MVA是提高DNA-rMVA疫苗抗HIV-1效力的一种有前景的策略。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8261/5748618/2062f9244900/vaccines-05-00052-g001.jpg

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