Evidence map›Paper›PMID 18162363›Full record

ArticleMicrobial pathogenesis2008

Retinoic acid inhibits the infectivity and growth of Chlamydia pneumoniae in epithelial and endothelial cells through different receptors.

Mirja Puolakkainen, Amy Lee, Tadayoshi Nosaka, Hideto Fukushi, Cho-Chou Kuo, Lee Ann Campbell

Open access · greenAbstract read
In one paragraph

Article in Microbial pathogenesis, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.3field-weighted citation impact, top 42% 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

4 citing papers in PubMed, 11 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
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

6 authors at 3 institutions in 3 countries.

Mirja PuolakkainenDepartment of Pathobiology, University of Washington, Box 357238, Seattle, WA 91895, USA.
Amy Lee
Tadayoshi Nosaka
Hideto Fukushi
Cho-Chou Kuo
Lee Ann Campbell
University of Washington · USGifu University · JPInstitute for Molecular Medicine Finland · FI

Funding

CHLAMYDIA PNEUMONIAE ANTIGENS OF BIOLOGICAL SIGNIFICANCER01AI043060 · NIAID · UNIVERSITY OF WASHINGTON · PI CAMPBELL, LEE ANN · 1998 to 2012
$4.1M
NIAID NIH HHS R01 AI043060
6 · The paper itself

Abstract

Chlamydia pneumoniae is a human respiratory pathogen that has also been associated with cardiovascular disease. C. pneumoniae infection accelerates atherosclerotic plaque development in hyperlipidemic animals and promotes oxidation of low density lipoprotein in vitro. All-trans-retinoic acid (ATRA), an antioxidant, has been shown to inhibit C. pneumoniae infectivity for endothelial cells by preventing binding of the organism to the M6P/IGF2 receptor on the cell surface. This current study investigates whether ATRA similarly affects C. pneumoniae infectivity of epithelial cells, which are the primary site of infection in the respiratory tract, and the effects on intracellular growth in both endothelial and epithelial cells. Because ATRA binds to both the nuclear retinoid acid receptor (RAR) and the M6P/IGF2 receptor, 4-[(E)-2-(5,6,7,8-tetrahydro-5,5,8,8-tetramethyl-2-naphthalenyl)-1-propenyl]benzoic acid (TTNPB), an ATRA analog, which binds to the RAR but not the M6P/IGF2 receptor was used to differentiate the receptor mediating the effects of ATRA. The results of this study showed two separate effects of ATRA. The first effect is through interaction with the M6P/IGF2 receptor on the cell surface preventing attachment of the organism (inhibition by ATRA but not TTNPB) in endothelial cells and the second is through the nuclear receptor (inhibition by both ATRA and TTNPB) which inhibits growth in both epithelial and endothelial cells.

Indexed as

Bacterial AdhesionCell LineChlamydophila pneumoniaeCytoplasmEndothelial CellsHumansInclusion BodiesReceptor, IGF Type 2Receptors, Retinoic AcidTretinoinReceptor, IGF Type 2Receptors, Retinoic AcidTretinoin

Identifiers

PMID18162363
PMCPMC2435498
OpenAlexW2018500650

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.