Evidence map›Paper›PMID 34001140›Full record

ArticleJournal of nanobiotechnology2021

Label-free detection of uptake, accumulation, and translocation of diesel exhaust particles in ex vivo perfused human placenta.

Eva Bongaerts, Leonie Aengenheister, Battuja B Dugershaw, Pius Manser, Maarten B J Roeffaers, Marcel Ameloot, Tim S Nawrot, Hannelore Bové, Tina Buerki-Thurnherr

Abstract read
In one paragraph

Article in Journal of nanobiotechnology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
–field-weighted citation impact
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

12 citing papers in PubMed.

  1. Review
  2. The application of label-free Raman microscopy to monitor particle-cell interactions inComputational and structural biotechnology journal · 2025
    Article
  3. Prenatal black carbon exposure and DNA methylation in umbilical cord blood.International journal of hygiene and environmental health · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Nanoparticles at the maternal-fetal interface.Molecular and cellular endocrinology · 2023
    Review
  9. Article
  10. Article
  11. Review
  12. Observational
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

9 authors.

Eva Bongaerts *Centre for Environmental Sciences, Hasselt University, Agoralaan Building D, 3590, Diepenbeek, Belgium.
Leonie Aengenheister *Laboratory for Particles-Biology Interactions, Empa, Swiss Federal Laboratories for Materials Science and Technology, St. Gallen, Switzerland.
Battuja B DugershawLaboratory for Particles-Biology Interactions, Empa, Swiss Federal Laboratories for Materials Science and Technology, St. Gallen, Switzerland.
Pius ManserLaboratory for Particles-Biology Interactions, Empa, Swiss Federal Laboratories for Materials Science and Technology, St. Gallen, Switzerland.
Maarten B J RoeffaersCentre for Surface Chemistry and Catalysis, KU Leuven, Leuven, Belgium.
Marcel AmelootBiomedical Research Institute, Hasselt University, Agoralaan Building C, 3590, Diepenbeek, Belgium.
Tim S NawrotCentre for Environmental Sciences, Hasselt University, Agoralaan Building D, 3590, Diepenbeek, Belgium.
Hannelore BovéCentre for Environmental Sciences, Hasselt University, Agoralaan Building D, 3590, Diepenbeek, Belgium. hannelore.bove@uhasselt.be.
Tina Buerki-ThurnherrLaboratory for Particles-Biology Interactions, Empa, Swiss Federal Laboratories for Materials Science and Technology, St. Gallen, Switzerland. tina.buerki@empa.ch.ORCID http://orcid.org/0000-0003-3723-6562

Funding

Fonds Wetenschappelijk Onderzoek 1150920NFonds Wetenschappelijk Onderzoek 12P6819NFonds Wetenschappelijk Onderzoek G082317NSchweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung 31003A_179337Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung IZSEZ0_193948
6 · The paper itself

Abstract

backgroundPregnant women and developing fetuses comprise a particularly vulnerable population as multiple studies have shown associations between prenatal air pollution exposure and adverse pregnancy outcomes. However, the mechanisms underlying the observed developmental toxicity are mostly unknown, in particular, if pollution particles can cross the human placenta to reach the fetal circulation.

resultsHere, we investigated the accumulation and translocation of diesel exhaust particles (DEPs), as a model particle for combustion-derived pollution, in human perfused placentae using label-free detection by femtosecond pulsed laser illumination. The results do not reveal a significant particle transfer across term placentae within 6 h of perfusion. However, DEPs accumulate in placental tissue, especially in the syncytiotrophoblast layer that mediates a wealth of essential functions to support and maintain a successful pregnancy. Furthermore, DEPs are found in placental macrophages and fetal endothelial cells, showing that some particles can overcome the syncytiotrophoblasts to reach the fetal capillaries. Few particles are also observed inside fetal microvessels.

conclusionsOverall, we show that DEPs accumulate in key cell types of the placental tissue and can cross the human placenta, although in limited amounts. These findings are crucial for risk assessment and protection of pregnant women and highlight the urgent need for further research on the direct and indirect placenta-mediated developmental toxicity of ambient particulates.

Indexed as

Biological TransportEndothelial CellsEnvironmental MonitoringEnvironmental PollutionFemaleHumansNanoparticlesPerfusionPlacentaPregnancyVehicle EmissionsVehicle EmissionsDiesel exhaust particlesEnvironmental pollutionEx vivo placental perfusionIn utero exposureNanosafety

Identifiers

PMID34001140
PMCPMC8130319

What OpenQuestion holds

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LicenceCC BY
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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.