Combined Skin and Muscle DNA Priming Provides Enhanced Humoral Responses to a Human Immunodeficency Virus Type 1 Clade C Envelope Vaccine
File(s)hum.2018.075.pdf (1.47 MB)
Published version
Author(s)
Type
Journal Article
Abstract
© Copyright 2018, Mary Ann Liebert, Inc., publishers2018. Intradermal (i.d.) and intramuscular (i.m.) injections when administered with or without electroporation (EP) have the potential to tailor the immune response to DNA vaccination. This Phase I randomized controlled clinical trial in human immunodeficiency virus type 1-negative volunteers investigated whether the site and mode of DNA vaccination influences the quality of induced cellular and humoral immune responses following the DNA priming phase and subsequent protein boost with recombinant clade C CN54 gp140. A strategy of concurrent i.d. and i.m. DNA immunizations administered with or without EP was adopted. Subtle differences were observed in the shaping of vaccine-induced virus-specific CD4+ and CD8+ T cell-mediated immune responses between groups receiving: i.d.EP+ i.m., i.d. + i.m.EP, and i.d.EP+ i.m.EPregimens. The DNA priming phase induced 100% seroconversion in all of the groups. A single, non-adjuvanted protein boost induced a rapid and profound increase in binding antibodies in all groups, with a trend for higher responses in i.d.EP+ i.m.EP. The magnitude of antigen-specific binding immunoglobulin G correlated with neutralization of closely matched clade C 93MW965 virus and Fc-dimer receptor binding (FcγRIIa and FcγRIIIa). These results offer new perspectives on the use of combined skin and muscle DNA immunization in priming humoral and cellular responses to recombinant protein.
Date Issued
2018-09-01
Date Acceptance
2018-07-16
Citation
Human Gene Therapy, 2018, 29 (9), pp.1011-1028
ISSN
1043-0342
Publisher
Mary Ann Liebert
Start Page
1011
End Page
1028
Journal / Book Title
Human Gene Therapy
Volume
29
Issue
9
Copyright Statement
© Hannah Mary Cheeseman et al. 2018; Published by Mary Ann Liebert, Inc. This Open Access article is distributed under the terms of the Creative Commons License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Sponsor
Commission of the European Communities
Commission of the European Communities
Identifier
https://www.ncbi.nlm.nih.gov/pubmed/30027768
Grant Number
241904
681137
Subjects
Science & Technology
Life Sciences & Biomedicine
Biotechnology & Applied Microbiology
Genetics & Heredity
Medicine, Research & Experimental
Research & Experimental Medicine
HIV
DNA vaccine
electroporation
antibody
gp140
INTRADERMAL ROUTES
HIV VACCINES
ELECTROPORATION
TRIAL
IMMUNOGENICITY
INDUCTION
DELIVERY
IMMUNITY
PROTEIN
SYSTEM
1004 Medical Biotechnology
1103 Clinical Sciences
Biotechnology
Publication Status
Published
Coverage Spatial
United States
Date Publish Online
2018-07-20