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Cited by 447

The DOI matches its Crossref record; 15 of the 15 references it cites were found in a registry or an index.

Protection against malaria by immunization with plasmid DNA encoding circumsporozoite protein.

Open access
Sedegah, M, Hedstrom, R, Hobart, P, Hoffman, S L·1994·Proceedings of the National Academy of Sciences

Abstract

Immunization with irradiated sporozoites protects animals and humans against malaria, and the circumsporozoite protein is a target of this protective immunity. We now report that adjuvant-free intramuscular injection of mice with plasmid DNA encoding the Plasmodium yoelii circumsporozoite protein induced higher levels of antibodies and cytotoxic T lymphocytes against the P. yoelii circumsporozoite protein than did immunization with irradiated sporozoites. Mice immunized with this vaccine had an 86% reduction in liver-stage parasite burden after challenge with 5 x 10(5) sporozoites (> 10(5) median infectious doses). Eighteen (68%) of 28 mice that received two or three doses of vaccine were protected against challenge with 10(2) sporozoites, and the protection was dependent on CD8+ T cells. These studies demonstrate the utility of plasmid DNA immunization against a nonviral infection. By obviating the requirement for peptide synthesis, expression and purification of recombinant proteins, and adjuvants, this method of immunization provides an important alternative for rapid identification of protective B- and T-cell epitopes and for construction of vaccines to prevent malaria and other infectious diseases.

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Crossref · 10.1073/pnas.91.21.9866

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Metadata

Authors
Sedegah, M., Hedstrom, R., Hobart, P., & Hoffman, S. L.
Venue
Proceedings of the National Academy of Sciences
Published
1994-10-11
Volume
91
Issue
21
Pages
9866-9870
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2065849927
Cited by
447
References
15
FWCI
52.76
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Protection against malaria by immunization with plasmid DNA encoding circumsporozoite protein. https://app.cochat.ai/papers/10.1073/pnas.91.21.9866
The paper
Sedegah, M., Hedstrom, R., Hobart, P., & Hoffman, S. L. (1994). Protection against malaria by immunization with plasmid DNA encoding circumsporozoite protein. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.91.21.9866

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.