Evidence map›Paper›PMID 30126372›Full record

ArticleBMC bioinformatics2018

Rscreenorm: normalization of CRISPR and siRNA screen data for more reproducible hit selection.

Costa Bachas, Jasmina Hodzic, Johannes C van der Mijn, Chantal Stoepker, Henk M W Verheul, Rob M F Wolthuis, Emanuela Felley-Bosco, Wessel N van Wieringen, Victor W van Beusechem, Ruud H Brakenhoff and 1 more

Abstract read
In one paragraph

Article in BMC bioinformatics, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing 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

9 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. 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.

Costa BachasDepartment of Otolaryngology - Head and Neck Surgery, Amsterdam UMC, Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, 1081, HV, The Netherlands.
Jasmina HodzicDepartment of Medical Oncology, Amsterdam UMC, Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, 1081, HV, The Netherlands.
Johannes C van der MijnDepartment of Medical Oncology, Amsterdam UMC, Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, 1081, HV, The Netherlands.
Chantal StoepkerDivision of Tumor Biology and Immunology, Netherlands Cancer Institute, Amsterdam, The Netherlands.
Henk M W VerheulDepartment of Medical Oncology, Amsterdam UMC, Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, 1081, HV, The Netherlands.
Rob M F WolthuisSection of Oncogenetics, Department of Clinical Genetics, Amsterdam UMC, Vrije Universiteit Amsterdam, De Boelelaan 1118, Amsterdam, 1081, HV, The Netherlands.
Emanuela Felley-BoscoLaboratory of Molecular Oncology, University Hospital Zürich, Zürich, Switzerland.
Wessel N van WieringenDepartment of Epidemiology and Biostatistics, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, 1007, MB, The Netherlands.
Victor W van BeusechemDepartment of Medical Oncology, Amsterdam UMC, Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, 1081, HV, The Netherlands.
Ruud H BrakenhoffDepartment of Otolaryngology - Head and Neck Surgery, Amsterdam UMC, Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, 1081, HV, The Netherlands.
Renée X de MenezesDepartment of Epidemiology and Biostatistics, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, 1007, MB, The Netherlands. r.menezes@vumc.nl.

Funding

KWF Kankerbestrijding 10701Stichting VUmc Cancer Center Amsterdam CCA2014-5-19
6 · The paper itself

Abstract

backgroundReproducibility of hits from independent CRISPR or siRNA screens is poor. This is partly due to data normalization primarily addressing technical variability within independent screens, and not the technical differences between them.

resultsWe present "rscreenorm", a method that standardizes the functional data ranges between screens using assay controls, and subsequently performs a piecewise-linear normalization to make data distributions across all screens comparable. In simulation studies, rscreenorm reduces false positives. Using two multiple-cell lines siRNA screens, rscreenorm increased reproducibility between 27 and 62% for hits, and up to 5-fold for non-hits. Using publicly available CRISPR-Cas screen data, application of commonly used median centering yields merely 34% of overlapping hits, in contrast with rscreenorm yielding 84% of overlapping hits. Furthermore, rscreenorm yielded at most 8% discordant results, whilst median-centering yielded as much as 55%.

conclusionsRscreenorm yields more consistent results and keeps false positive rates under control, improving reproducibility of genetic screens data analysis from multiple cell lines.

Indexed as

Clustered Regularly Interspaced Short Palindromic RepeatsGenetic TestingGenomicsHumansReproducibility of ResultsRNA, Small InterferingRNA, Small InterferingFunctional genomicsNormalizationReproducibility

Identifiers

PMID30126372
PMCPMC6102854

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.