Evidence map›Paper›PMID 28434226›Full record

ArticleAnalytical chemistry2017

In Situ Microprobe Single-Cell Capillary Electrophoresis Mass Spectrometry: Metabolic Reorganization in Single Differentiating Cells in the Live Vertebrate (Xenopus laevis) Embryo.

Rosemary M Onjiko, Erika P Portero, Sally A Moody, Peter Nemes

Abstract read
In one paragraph

Article in Analytical chemistry, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed
7.5field-weighted citation impact, top 2% 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

51 citing papers in PubMed, 119 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Cell lineage-guided mass spectrometry reveals increased energy metabolism and reactive oxygen species in the vertebrate organizer.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  6. Article
  7. Article
  8. Article
  9. Separation methods in single-cell proteomics: RPLC or CE?International journal of mass spectrometry · 2022
    Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. The limitless applications of single-cell metabolomics.Current opinion in biotechnology · 2021
    Review
  15. Article
  16. Article
  17. Article
  18. Review
  19. 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

4 authors at 1 institution in 1 country.

Rosemary M OnjikoDepartment of Chemistry and ‡Department of Anatomy and Regenerative Biology, The George Washington University , Washington, D.C., 20052, United States.
Erika P PorteroDepartment of Chemistry and ‡Department of Anatomy and Regenerative Biology, The George Washington University , Washington, D.C., 20052, United States.
Sally A MoodyDepartment of Chemistry and ‡Department of Anatomy and Regenerative Biology, The George Washington University , Washington, D.C., 20052, United States.
Peter NemesDepartment of Chemistry and ‡Department of Anatomy and Regenerative Biology, The George Washington University , Washington, D.C., 20052, United States.ORCID 0000-0002-4704-4997
George Washington University · US

Funding

In Situ Optoguided Microsampling Single-cell Mass Spectrometry for Elucidating Cell HeterogeneityR21GM114854 · NIGMS · GEORGE WASHINGTON UNIVERSITY · PI NEMES, PETER · 2014 to 2015
$361k
Critical Transition-based Correlation Analysis for MetabolomicsR03CA211635 · NCI · UNIV OF MARYLAND, COLLEGE PARK · PI NEMES, PETER, ZENG, CHEN · 2016 to 2016
$153k
NCI NIH HHS R03 CA211635NIGMS NIH HHS R21 GM114854
6 · The paper itself

Abstract

Knowledge of single-cell metabolism would provide a powerful look into cell activity changes as cells differentiate to all the tissues of the vertebrate embryo. However, single-cell mass spectrometry technologies have not yet been made compatible with complex three-dimensional changes and rapidly decreasing cell sizes during early development of the embryo. Here, we bridge this technological gap by integrating capillary microsampling, microscale metabolite extraction, and capillary electrophoresis electrospray ionization mass spectrometry (CE-ESI-MS) to enable direct metabolic analysis of identified cells in the live frog embryo (Xenopus laevis). Microprobe CE-ESI-MS of <0.02% of the single-cell content allowed us to detect ∼230 different molecular features (positive ion mode), including 70 known metabolites, in single dorsal and ventral cells in 8-to-32-cell embryos. Relative quantification followed by multivariate and statistical analysis of the data found that microsampling enhanced detection sensitivity compared to whole-cell dissection by minimizing chemical interferences and ion suppression effects from the culture media. In addition, higher glutathione/oxidized glutathione ratios suggested that microprobed cells exhibited significantly lower oxidative stress than those dissected from the embryo. Fast (5 s/cell) and scalable microsampling with minimal damage to cells in the 8-cell embryo enabled duplicate and triplicate metabolic analysis of the same cell, which surprisingly continued to divide to the 16-cell stage. Last, we used microprobe single-cell CE-ESI-MS to uncover previously unknown reorganization of the single-cell metabolome as the dorsal progenitor cell from the 8-cell embryo formed the neural tissue fated clone through divisions to the 32-cell embryo, peering, for the first time, into the formation of metabolic single-cell heterogeneity during early development of a vertebrate embryo.

Indexed as

MetabolomeAnimalsElectrophoresis, CapillaryFemaleMaleOxidative StressSingle-Cell AnalysisSpectrometry, Mass, Electrospray IonizationXenopus laevis

Identifiers

PMID28434226
PMCPMC5706767
OpenAlexW2605571766

What OpenQuestion holds

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Registered trials

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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.