Evidence map›Paper›PMID 32916274›Full record

ArticleReproductive toxicology (Elmsford, N.Y.)2020

Breast cancer resistance protein (Bcrp/Abcg2) is selectively modulated by lipopolysaccharide (LPS) in the mouse yolk sac.

L M Martinelli, M W Reginatto, K N Fontes, C B V Andrade, V R S Monteiro, H R Gomes, F R C L Almeida, F F Bloise, S G Matthews, T M Ortiga-Carvalho and 1 more

Open access · hybridAbstract read
In one paragraph

Article in Reproductive toxicology (Elmsford, N.Y.), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.1field-weighted citation impact, top 23% 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

11 citing papers in PubMed, 23 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Regulation of Placental Efflux Transporters during Pregnancy Complications.Drug metabolism and disposition: the biological fate of chemicals · 2022
    Review
  8. Review
  9. Article
  10. Article
  11. 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

11 authors at 3 institutions in 2 countries.

L M MartinelliDepartment of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Brazil.
M W ReginattoLaboratory of Translational Endocrinology, Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Brazil.
K N FontesLaboratory of Translational Endocrinology, Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Brazil.
C B V AndradeLaboratory of Translational Endocrinology, Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Brazil.
V R S MonteiroLaboratory of Translational Endocrinology, Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Brazil.
H R GomesLaboratory of Translational Endocrinology, Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Brazil.
F R C L AlmeidaDepartment of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Brazil.
F F BloiseLaboratory of Translational Endocrinology, Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Brazil.
S G MatthewsDepartments of Physiology,Obstetrics and Gynecology and Medicine, University of Toronto, Canada; Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Ontario, Canada.
T M Ortiga-CarvalhoLaboratory of Translational Endocrinology, Institute of Biophysics Carlos Chagas Filho, Federal University of Rio de Janeiro, Brazil.
E BloiseDepartment of Morphology, Institute of Biological Sciences, Federal University of Minas Gerais, Brazil. Electronic address: ebloise@icb.ufmg.br.
Universidade Federal do Rio de Janeiro · BRUniversidade Federal de Minas Gerais · BRMount Sinai Hospital · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Bacterial infection alters placental ABC transporters expression. These transporters provide fetal protection against circulating xenobiotics and environmental toxins present in maternal blood. We hypothesized that lipopolysaccharide (LPS-bacterial mimic) alters the yolk sac morphology and expression of key ABC transporters in a gestational-age dependent manner. Yolk sac samples from C57BL/6 mice were obtained at gestational ages (GD) 15.5 and GD18.5, 4 or 24 h after LPS exposure (150ug/kg; n = 8/group). Samples underwent morphometrical, qPCR and immunohistochemistry analysis. The volumetric proportions of the histological components of the yolk sac did not change in response to LPS. LPS increased Abcg2 expression at GD15.5, after 4 h of treatment (p < 0.05). No changes in Abca1, Abcb1a/b, Abcg1, Glut1, Snat1, Il-1β, Ccl2 and Mif were observed. Il-6 and Cxcl1 were undetectable in the yolk sac throughout pregnancy. Abca1, breast cancer resistance protein (Bcrp, encoded by Abcg2) and P-glycoprotein (P-gp/ Abcb1a/b) were localized in the endodermal (uterine-facing) epithelium and to a lesser extent in the mesothelium (amnion-facing), whereas Abca1 was also localized to the endothelium of the yolk sac blood vessels. LPS increased the labeling area and intensity of Bcrp in the yolk sac's mesothelial cells at GD15.5 (4 h), whereas at GD18.5, the area of Bcrp labeling in the mesothelium (4 and 24 h) was decreased (p < 0.05). Bacterial infection has the potential to change yolk sac barrier function by affecting Bcrp and Abcg2 expression in a gestational-age dependent-manner. These changes may alter fetal exposure to xenobiotics and toxic substances present in the maternal circulation and in the uterine cavity.

Indexed as

AnimalsATP Binding Cassette Transporter, Subfamily G, Member 2FemaleGestational AgeLipopolysaccharidesMice, Inbred C57BLPregnancyYolk SacAbcg2 protein, mouseATP Binding Cassette Transporter, Subfamily G, Member 2LipopolysaccharidesAbca1Abcg1Bacterial infectionBreast cancer resistance protein (Bcrp/Abcg2)Lipopolysaccharide (LPS)Mouse yolk SacP-glycoprotein (P-gp/Abcb1a and Abcb1b)Prenatal endotoxemia

Identifiers

PMID32916274
PMCPMC7772890
OpenAlexW3084389169

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.