Evidence map›Paper›PMID 34089799›Full record

ArticleFood and chemical toxicology : an international journal published for the British Industrial Biological Research Association2021

Single cell RNA sequencing detects persistent cell type- and methylmercury exposure paradigm-specific effects in a human cortical neurodevelopmental model.

M Diana Neely, Shaojun Xie, Lisa M Prince, Hyunjin Kim, Anke M Tukker, Michael Aschner, Jyothi Thimmapuram, Aaron B Bowman

Open access · greenAbstract read
In one paragraph

Article in Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
3.0field-weighted citation impact, top 9% 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

8 citing papers in PubMed, 30 citations in OpenAlex.

  1. Article
  2. Advancing Environmental ToxicologyEnvironment & health (Washington, D.C.) · 2024
    Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. 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

8 authors at 3 institutions in 1 country.

M Diana NeelyDept of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, USA.
Shaojun XieBioinformatics Core, Purdue University, West Lafayette, IN, USA.
Lisa M PrinceSchool of Health Sciences, Purdue University, West Lafayette, IN, USA.
Hyunjin KimSchool of Health Sciences, Purdue University, West Lafayette, IN, USA.
Anke M TukkerSchool of Health Sciences, Purdue University, West Lafayette, IN, USA.
Michael AschnerDept of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY, USA.
Jyothi ThimmapuramBioinformatics Core, Purdue University, West Lafayette, IN, USA.
Aaron B BowmanDept of Pediatrics, Vanderbilt University Medical Center, Nashville, TN, USA; School of Health Sciences, Purdue University, West Lafayette, IN, USA. Electronic address: bowma117@purdue.edu.
Purdue University West Lafayette · USAlbert Einstein College of Medicine · USVanderbilt University Medical Center · US

Funding

Mechanisms of Methylmercury Induced Neuron ToxicityR01ES007331 · NIEHS · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI Michael Aschner, Aaron B Bowman · 1996 to 2026
$10.6M
SUPPORT FOR THE ROSE F KENNEDY IDDRC P50P50HD105352 · NICHD · ALBERT EINSTEIN COLLEGE OF MEDICINE · PI SOPHIE MOLHOLM, Steven Upshaw Walkley · 2021 to 2026
$7.0M
NICHD NIH HHS P50 HD105352NIEHS NIH HHS R01 ES007331
6 · The paper itself

Abstract

The developing human brain is uniquely vulnerable to methylmercury (MeHg) resulting in lasting effects especially in developing cortical structures. Here we assess by single-cell RNA sequencing (scRNAseq) persistent effects of developmental MeHg exposure in a differentiating cortical human-induced pluripotent stem cell (hiPSC) model which we exposed to in vivo relevant and non-cytotoxic MeHg (0.1 and 1.0 μM) concentrations. The cultures were exposed continuously for 6 days either once only during days 4-10, a stage representative of neural epithelial- and radial glia cells, or twice on days 4-10 and days 14-20, a somewhat later stage which includes intermediate precursors and early postmitotic neurons. After the completion of MeHg exposure the cultures were differentiated further until day 38 and then assessed for persistent MeHg-induced effects by scRNAseq. We report subtle, but significant changes in the population size of different cortical cell types/stages and cell cycle. We also observe MeHg-dependent differential gene expression and altered biological processes as determined by Gene Ontology analysis. Our data demonstrate that MeHg results in changes in gene expression in human developing cortical neurons that manifest well after cessation of exposure and that these changes are cell type-, developmental stage-, and exposure paradigm-specific.

Indexed as

ApoptosisCell CycleCell DifferentiationCerebral CortexGene Expression RegulationGlutathioneHumansInduced Pluripotent Stem CellsMethylmercury CompoundsModels, BiologicalNeuronsReproducibility of ResultsReverse Transcriptase Polymerase Chain ReactionSequence Analysis, RNASingle-Cell AnalysisGlutathioneMethylmercury CompoundsCortexGlutamatergicHuman-induced pluripotent stem cellsMethylmercuryNeuronSingle cell RNA sequencing

Identifiers

PMID34089799
PMCPMC8761390
OpenAlexW3168424642

What OpenQuestion holds

Textmetadata
LicenceTDM
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.