Evidence map›Paper›PMID 21393636›Full record

ArticleInternational immunology2011

Optimal oligonucleotide sequences for TLR9 inhibitory activity in human cells: lack of correlation with TLR9 binding.

Robert F Ashman, J Adam Goeken, Eicke Latz, Petar Lenert

Open access · bronzeAbstract read
In one paragraph

Article in International immunology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.0field-weighted citation impact, top 14% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 34 citations in OpenAlex.

  1. Review
  2. Article
  3. Host-pathogen protein-nucleic acid interactions: A comprehensive review.Computational and structural biotechnology journal · 2022
    Review
  4. Review
  5. SARS-CoV-2 will constantly sweep its tracks: a vaccine containing CpG motifs in 'lasso' for the multi-faced virus.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2020
    Article
  6. Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 1 country.

Robert F AshmanCarver College of Medicine, University of Iowa, Iowa City, IA 52242, USA.
J Adam Goeken
Eicke Latz
Petar Lenert
University of Iowa · USUniversity of Massachusetts Chan Medical School · US

Funding

Inflammasome activation by cholesterol crystalsR01HL093262 · NHLBI · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI LATZ, EICKE · 2009 to 2013
$2.0M
Role of PISA; a PYHIN Family Member in Intracellular DNA RecognitionR01AI083713 · NIAID · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI FITZGERALD, KATHERINE A., LATZ, EICKE · 2009 to 2013
$2.0M
NHLBI NIH HHS R01 HL093262NIAID NIH HHS R01AI0437374NIAID NIH HHS R01 AI083713
6 · The paper itself

Abstract

Toll-like receptor (TLR)9 performs our innate response to bacterial DNA, warning us of the presence of infection. Inhibitory oligodeoxyribonucleotides (INH-ODN) have been developed that selectively block activation of mouse TLR9. Their inhibitory motif consisting of CCx(not-C)(not-C)xxGGG (x = any base) also reduces anti-DNA antibodies in lupus mice. The current study demonstrates that this motif also provides the sequences required to block TLR9 in human B cells and human embryonic kidney (HEK) cells transfected with human TLR9. However, extending the sequence by four to five bases at the 5' end enhanced activity and this enhancement was greater when a phosphorothioate (pS) backbone replaced the native phosphodiester (pO) backbone. A series of pO-backbone INH-ODN representing a 500-fold range of activity in biologic assays was shown to cover less than a 2.5-fold range of avidity for binding human TLR9-Ig fusion protein, eliminating TLR9 ectodomain binding as the explanation for sequence-specific differences in biologic activity. With few exceptions, the relative activity of INH-ODN in Namalwa cells and HEK/human TLR9 cells was similar to that seen in mouse B cells. INH-ODN activity in human peripheral blood B cells correlated significantly with the cell line data. These results favor the conclusion that although the backbone determines strength of TLR9 binding, critical recognition of the INH-ODN sequence necessary for biologic activity is performed by a molecule that is not TLR9. These studies also identify the strongest INH-ODN for human B cells, helping to guide the selection of INH-ODN sequences for therapeutics in any situation where inflammation is enhanced by TLR9.

Indexed as

DNA-Binding ProteinsAnimalsAnti-Inflammatory AgentsBase SequenceB-LymphocytesCell LineFlow CytometryHumansMiceMolecular Sequence DataOligodeoxyribonucleotidesPhosphorothioate OligonucleotidesProtein BindingToll-Like Receptor 9Anti-Inflammatory AgentsDNA-Binding ProteinsOligodeoxyribonucleotidesPhosphorothioate OligonucleotidesToll-Like Receptor 9

Identifiers

PMID21393636
PMCPMC3053407
OpenAlexW2106614448

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.