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Cited by 397

The DOI matches its Crossref record; 48 of the 48 references it cites were found in a registry or an index.

Sequence motifs in adenoviral DNA block immune activation by stimulatory CpG motifs

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Krieg, Arthur M., Wu, Tong, Weeratna, Risini, Efler, Susan M., Love-Homan, Laurie, Yang, Lin, Yi, Ae-Kyung, Short, Dan, Davis, Heather L.·1998·Proceedings of the National Academy of Sciences

Abstract

Unmethylated CpG dinucleotides in particular base contexts (CpG-S motifs) are relatively common in bacterial DNA but are rare in vertebrate DNA. B cells and monocytes have the ability to detect such CpG-S motifs that trigger innate immune defenses with production of Th1-like cytokines. Despite comparable levels of unmethylated CpG dinucleotides, DNA from serotype 12 adenovirus is immune-stimulatory, but serotype 2 is nonstimulatory and can even inhibit activation by bacterial DNA. In type 12 genomes, the distribution of CpG-flanking bases is similar to that predicted by chance. However, in type 2 adenoviral DNA the immune stimulatory CpG-S motifs are outnumbered by a 15- to 30-fold excess of CpG dinucleotides in clusters of direct repeats or with a C on the 5′ side or a G on the 3′ side. Synthetic oligodeoxynucleotides containing these putative neutralizing (CpG-N) motifs block immune activation by CpG-S motifs in vitro and in vivo. Eliminating 52 of the 134 CpG-N motifs present in a DNA vaccine markedly enhanced its Th1-like function in vivo, which was increased further by the addition of CpG-S motifs. Thus, depending on the CpG motif, prokaryotic DNA can be either immune-stimulatory or neutralizing. These results have important implications for understanding microbial pathogenesis and molecular evolution and for the clinical development of DNA vaccines and gene therapy vectors.

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Metadata

Authors
Krieg, A. M., Wu, T., Weeratna, R., Efler, S. M., Love-Homan, L., Yang, L., Yi, A.-K., Short, D., & Davis, H. L.
Venue
Proceedings of the National Academy of Sciences
Published
1998-10-13
Volume
95
Issue
21
Pages
12631-12636
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2054654286
Cited by
397
References
48
FWCI
10.27
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Sequence motifs in adenoviral DNA block immune activation by stimulatory CpG motifs. https://app.cochat.ai/papers/10.1073/pnas.95.21.12631
The paper
Krieg, A. M., Wu, T., Weeratna, R., Efler, S. M., Love-Homan, L., Yang, L., Yi, A.-K., Short, D., & Davis, H. L. (1998). Sequence motifs in adenoviral DNA block immune activation by stimulatory CpG motifs. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.95.21.12631

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