Cited by 18Single-cell and spatial transcriptomicsGene Regulatory Network AnalysisGene expression and cancer classification

cgCorrect: a method to correct for confounding cell–cell variation due to cell growth in single-cell transcriptomics

Open access
Blasi, Thomas, Buettner, Florian, Strasser, Michael K, Marr, Carsten, Theis, Fabian J·2017·Physical Biology

Published version of a preprint

Abstract

Accessing gene expression at a single-cell level has unraveled often large heterogeneity among seemingly homogeneous cells, which remains obscured when using traditional population-based approaches. The computational analysis of single-cell transcriptomics data, however, still imposes unresolved challenges with respect to normalization, visualization and modeling the data. One such issue is differences in cell size, which introduce additional variability into the data and for which appropriate normalization techniques are needed. Otherwise, these differences in cell size may obscure genuine heterogeneities among cell populations and lead to overdispersed steady-state distributions of mRNA transcript numbers. We present cgCorrect, a statistical framework to correct for differences in cell size that are due to cell growth in single-cell transcriptomics data. We derive the probability for the cell-growth-corrected mRNA transcript number given the measured, cell size-dependent mRNA transcript number, based on the assumption that the average number of transcripts in a cell increases proportionally to the cell’s volume during the cell cycle. cgCorrect can be used for both data normalization and to analyze the steady-state distributions used to infer the gene expression mechanism. We demonstrate its applicability on both simulated data and single-cell quantitative real-time polymerase chain reaction (PCR) data from mouse blood stem and progenitor cells (and to quantitative single-cell RNA-sequencing data obtained from mouse embryonic stem cells). We show that correcting for differences in cell size affects the interpretation of the data obtained by typically performed computational analysis.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1088/1478-3975/aa609a

Cites

59 of 59 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Correcting for cell size via normalization, or dedicated tools such as cgCorrect, also partially corrects for cell cycle effects in scRNA-seq data.

    “Thus, correcting for cell size via normalization, or dedicated tools such as cgCorrect (Blasi et al, 2017), also partially corrects for cell cycle effects in scRNA‐seq data.”

    From Current best practices in single-cell RNA-seq analysis: a tutorial (2019) · cites this paper as Blasi et al, 2017

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 1

  1. Jeffreys H 1961 The Theory of Probability 3rd edn (Oxford: Oxford University Press)

Cited by

Sorted by citations

Authors
Blasi, T., Buettner, F., Strasser, M. K., Marr, C., & Theis, F. J.
Affiliations
Helmholtz Munich (DE)
Corresponding author
  • Marr, Carsten
  • Theis, Fabian J
Venue
Physical Biology
Published
2017-05-11
Volume
14
Issue
3
Pages
036001
ISSN
  • 1478-3967 (ISSN-L)
  • 1478-3975
OpenAlex
W2950872423
Cited by
18
References
59
Citations by year
2026: 1 · 2024: 1 · 2023: 1 · 2022: 1 · 2021: 7 · 2020: 3 · 2019: 4
FWCI
0.78
Type
journal article
Language
en
Open access
Locations
  • Physical Biology (publishedVersion)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion)
  • PubMed (publishedVersion)
  • Site cant be reached (submittedVersion, cc-by-nc-nd)
Funders
  • Deutsche Forschungsgemeinschaft (SPP 1356)
  • Studienstiftung des Deutschen Volkes
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Single-cell and spatial transcriptomics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gene Regulatory Network Analysis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gene expression and cancer classification
Keywords
cell size heterogeneity, single-cell transcriptomics, normalization, stationary distribution, cell cycle, mouse embryonic stem cells, gene expression regulation, single-cell RNA sequencing
MeSH terms
Models, Genetic, RNA, Messenger, Gene Expression, Computational Biology, Gene Expression Profiling, Cell Size, Cell Enlargement

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review