Evidence map›Paper›PMID 12819078›Full record

ArticleInfection and immunity2003

Identification of CD8 T-lymphocyte epitopes in OmpB of Rickettsia conorii.

Zhen Li, C Marcela Díaz-Montero, Gustavo Valbuena, Xue-Jie Yu, Juan P Olano, Hui-Min Feng, David H Walker

Abstract read
In one paragraph

Article in Infection and immunity, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
0.7field-weighted citation impact, top 34% 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

18 citing papers in PubMed, 30 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Review
  5. Review
  6. The neglected challenge: Vaccination against rickettsiae.PLoS neglected tropical diseases · 2020
    Review
  7. Review
  8. Article
  9. Article
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  12. Review
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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

7 authors at 1 institution in 1 country.

Zhen LiDepartment of Pathology, WHO Collaborating Center for Tropical Diseases, University of Texas Medical Branch at Galveston, Galveston, Texas 77555-0609, USA.
C Marcela Díaz-Montero
Gustavo Valbuena
Xue-Jie Yu
Juan P Olano
Hui-Min Feng
David H Walker
The University of Texas Medical Branch at Galveston · US

Funding

SPOTTED FEVER RICKETTSIAL ANTIGENSR01AI021242 · NIAID · UNIVERSITY OF TEXAS MEDICAL BR GALVESTON · PI WALKER, DAVID H · 1985 to 2013
$5.2M
NIAID NIH HHS AI 21242NIAID NIH HHS R01 AI021242
6 · The paper itself

Abstract

The 1.2-kb DNA fragment of the Rickettsia conorii outer membrane protein B gene (OmpB(451-846)) was subcloned using site-specific PCR primers and expressed as six smaller fragments: OmpB(458-652), OmpB(595-744), OmpB(595-654), OmpB(645-692), OmpB(689-744), and OmpB(739-848). NCTC cells transfected with a mammalian expression vector expressing the fragments OmpB(689-744) and OmpB(739-848) stimulated immune anti-R. conorii CD8 T lymphocytes, suggesting the presence of CD8 T-lymphocyte-stimulating epitopes on these fragments. In order to further characterize the CD8 T-lymphocyte-stimulatory elements, CD8 T-lymphocyte epitopes on OmpB(689-744) and OmpB(739-848) were mapped by overlapping synthetic peptides. The ability of these synthetic peptides to stimulate immune CD8 T lymphocytes was determined by gamma interferon (IFN-gamma) production and cell proliferation after incubation with simian virus 40-transformed murine vascular endothelial cells in the presence of a 20 micro M solution of each synthetic peptide. Five synthetic peptides, SKGVNVDTV (OmpB(708-716)), ANVGSFVFN (OmpB(735-743)), IVSGTVGGQ (OmpB(749-757)), ANSTLQIGG (OmpB(789-797)), and IVEFVNTGP (OmpB(812-820)), induced secretion of IFN-gamma at significantly higher levels than the controls. Three of these five peptides, SKGVNVDTV (OmpB(708-716)), ANSTLQIGG (OmpB(789-797)), and IVEFVNTGP (OmpB(812-820)), also stimulated the proliferation of immune CD8 T lymphocytes. Significantly higher levels of specific cytotoxic T-lymphocyte killing were observed with the same three synthetic peptides, SKGVNVDTV (OmpB(708-716)), ANSTLQIGG (OmpB(789-797)), and IVEFVNTGP (OmpB(812-820)).

Indexed as

Epitopes, T-LymphocyteAnimalsBacterial Outer Membrane ProteinsCD8-Positive T-LymphocytesCloning, MolecularHLA-A AntigensInterferon-gammaMaleMiceMice, Inbred C3HPeptide FragmentsRickettsia conoriiBacterial Outer Membrane ProteinsEpitopes, T-LymphocyteHLA-A AntigensInterferon-gammaPeptide Fragments

Identifiers

PMID12819078
PMCPMC161984
OpenAlexW2117970585

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.