Cited by 172Immunotherapy and Immune ResponsesMosquito-borne diseases and controlHIV Research and Treatment

An alphavirus replicon particle chimera derived from Venezuelan equine encephalitis and sindbis viruses is a potent gene-based vaccine delivery vector

Open access
Perri, Silvia, Greer, Catherine E., Thudium, Kent, Doe, Barbara, Legg, Harold, Liu, Hong, Romero, Raul E., Tang, Zequn +5 more·2003·Journal of Virology

Abstract

Alphavirus replicon particle-based vaccine vectors derived from Sindbis virus (SIN), Semliki Forest virus, and Venezuelan equine encephalitis virus (VEE) have been shown to induce robust antigen-specific cellular, humoral, and mucosal immune responses in many animal models of infectious disease and cancer. However, since little is known about the relative potencies among these different vectors, we compared the immunogenicity of replicon particle vectors derived from two very different parental alphaviruses, VEE and SIN, expressing a human immunodeficiency virus type 1 p55(Gag) antigen. Moreover, to explore the potential benefits of combining elements from different alphaviruses, we generated replicon particle chimeras of SIN and VEE. Two distinct strategies were used to produce particles with VEE-p55(gag) replicon RNA packaged within SIN envelope glycoproteins and SIN-p55(gag) replicon RNA within VEE envelope glycoproteins. Each replicon particle configuration induced Gag-specific CD8(+) T-cell responses in murine models when administered alone or after priming with DNA. However, Gag-specific responses varied dramatically, with the strongest responses to this particular antigen correlating with the VEE replicon RNA, irrespective of the source of envelope glycoproteins. Comparing the replicons with respect to heterologous gene expression levels and sensitivity to alpha/beta interferon in cultured cells indicated that each might contribute to potency differences. This work shows that combining desirable elements from VEE and SIN into a replicon particle chimera may be a valuable approach toward the goal of developing vaccine vectors with optimal in vivo potency, ease of production, and safety.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1128/jvi.77.19.10394-10403.2003

Cites

62 of 62 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • VRPs are potent vaccines in mice, nonhuman primates, and humans.

    “VRPs are potent vaccines in mice (10,11), nonhuman primates (11,22), and humans (25).”

    From Nonviral delivery of self-amplifying RNA vaccines (2012) · cites this paper as [10]

  • Insertion of an RNA-dependent RNA polymerase (RdRp) sequence next to the antigen-encoding sequence leads to amplification of the antigen of interest in the cytoplasm.

    “Subsequent viral biology research led to the insertion of an RNA-dependent RNA polymerase (RdRp) sequence next to the antigen-encoding sequence, leading to the amplification of the antigen of interest in the cytoplasm.51”

    From COVID-19 mRNA vaccines: Platforms and current developments (2022) · cites this paper as [51]

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 2

  1. [4]Chastain, M., A. J. Simon, K. A. Soper, D. J. Holder, D. L. Montgomery, S. L. Sagar, D. R. Casimiro, and C. R. Middaugh. 2001. Antigen levels and antibody titers after DNA vaccination. J. Pharm. Sci. 90:474-484. [DOI] [PubMed] [Google Scholar]
  2. [20]Johnston, R. E., and C. J. Peters. 1996. Alphaviruses, p. 843-898. In B. N. Fields, D. M. Knipe, and P. M. Howley (ed.), Fields virology, vol. 1. Lippincott-Raven Publishers, Philadelphia, Pa.

Cited by

Sorted by citations

Authors
Perri, S., Greer, C. E., Thudium, K., Doe, B., Legg, H., Liu, H., Romero, R. E., Tang, Z., Bin, Q., Dubensky, T. W., Vajdy, M., Otten, G. R., & Polo, J. M.
Affiliations
Vaccine Research, Chiron Corporation, Emeryville, California 94608
Corresponding author
Perri, Silvia
Venue
Journal of Virology
Published
2003-10
Volume
77
Issue
19
Pages
10394-10403
ISSN
  • 0022-538X (ISSN-L)
  • 1098-5514
OpenAlex
W2153049488
Cited by
172
References
62
Citations by year
2026: 3 · 2025: 4 · 2024: 9 · 2023: 10 · 2022: 12 · 2021: 11 · 2020: 13 · 2019: 7 · 2018: 6 · 2017: 2 · 2016: 6 · 2015: 3 · 2014: 8 · 2013: 9 · 2012: 6
FWCI
2.27
Type
journal article
Language
en
Open access
Locations
  • Journal of Virology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (n01ai005396-002)
  • National Institute of Allergy and Infectious Diseases (N0-1-AI-05396, N01 AI005396)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Mosquito-borne diseases and control
  • Life Sciences › Immunology and Microbiology › Virology › HIV Research and Treatment
Keywords
Venezuelan equine encephalitis virus, Sindbis virus, Semliki Forest virus, envelope glycoprotein, CD8+ T cell responses, interferon sensitivity, immunogenicity, DNA priming, heterologous expression
MeSH terms
Amino Acid Sequence, Animals, Chimera, Encephalitis Virus, Venezuelan Equine, Genetic Vectors, Cricetinae, Interferons, Mice, Inbred BALB C, Molecular Sequence Data, Protein Precursors, Replicon, RNA, Viral, Sindbis Virus, Vaccines, Synthetic, Gene Products, gag, AIDS Vaccines, CD8-Positive T-Lymphocytes, Virus Assembly, Mice

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review