Evidence map›Paper›PMID 29346415›Full record

ArticlePloS one2018

Acute multi-sgRNA knockdown of KEOPS complex genes reproduces the microcephaly phenotype of the stable knockout zebrafish model.

Tilman Jobst-Schwan, Johanna Magdalena Schmidt, Ronen Schneider, Charlotte A Hoogstraten, Jeremy F P Ullmann, David Schapiro, Amar J Majmundar, Amy Kolb, Kaitlyn Eddy, Shirlee Shril and 3 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.8field-weighted citation impact, top 15% 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

14 citing papers in PubMed, 27 citations in OpenAlex.

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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

13 authors at 1 institution in 1 country.

Tilman Jobst-SchwanDepartment of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, United States of America.ORCID 0000-0001-9802-6783
Johanna Magdalena SchmidtDepartment of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, United States of America.
Ronen SchneiderDepartment of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, United States of America.
Charlotte A HoogstratenDepartment of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, United States of America.
Jeremy F P UllmannEpilepsy Genetics Program and F.M. Kirby Neurobiology Center, Department of Neurology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, United States of America.ORCID 0000-0002-3073-9151
David SchapiroDepartment of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, United States of America.
Amar J MajmundarDepartment of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, United States of America.
Amy KolbDepartment of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, United States of America.
Kaitlyn EddyDepartment of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, United States of America.
Shirlee ShrilDepartment of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, United States of America.
Daniela A BraunDepartment of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, United States of America.
Annapurna PoduriEpilepsy Genetics Program and F.M. Kirby Neurobiology Center, Department of Neurology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, United States of America.
Friedhelm HildebrandtDepartment of Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, United States of America.ORCID 0000-0002-7130-0030
Boston Children's Hospital · US

Funding

RESEARCH TRAINING IN PEDIATRIC NEPHROLOGYT32DK007726 · NIDDK · CHILDREN'S HOSPITAL BOSTON · PI BRISCOE, DAVID M. · 1994 to 2023
$5.9M
Identification and function of new genes causing childhood nephrotic syndromeR01DK076683 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI HILDEBRANDT, FRIEDHELM · 2007 to 2021
$5.3M
Mouse Neurodevelopmental Behavior CoreU54HD090255 · NICHD · BOSTON CHILDREN'S HOSPITAL · PI SAHIN, MUSTAFA · 2016 to 2020
$5.2M
NICHD NIH HHS U54 HD090255NIDDK NIH HHS R01 DK076683NIDDK NIH HHS T32 DK007726NIH HHS DK076683NIH HHS T32DK007726-31A1
6 · The paper itself

Abstract

Until recently, morpholino oligonucleotides have been widely employed in zebrafish as an acute and efficient loss-of-function assay. However, off-target effects and reproducibility issues when compared to stable knockout lines have compromised their further use. Here we employed an acute CRISPR/Cas approach using multiple single guide RNAs targeting simultaneously different positions in two exemplar genes (osgep or tprkb) to increase the likelihood of generating mutations on both alleles in the injected F0 generation and to achieve a similar effect as morpholinos but with the reproducibility of stable lines. This multi single guide RNA approach resulted in median likelihoods for at least one mutation on each allele of >99% and sgRNA specific insertion/deletion profiles as revealed by deep-sequencing. Immunoblot showed a significant reduction for Osgep and Tprkb proteins. For both genes, the acute multi-sgRNA knockout recapitulated the microcephaly phenotype and reduction in survival that we observed previously in stable knockout lines, though milder in the acute multi-sgRNA knockout. Finally, we quantify the degree of mutagenesis by deep sequencing, and provide a mathematical model to quantitate the chance for a biallelic loss-of-function mutation. Our findings can be generalized to acute and stable CRISPR/Cas targeting for any zebrafish gene of interest.

Indexed as

Gene Knockdown TechniquesModels, BiologicalAnimalsCRISPR-Cas SystemsHigh-Throughput Nucleotide SequencingINDEL MutationMicrocephalyMutagenesisPhenotypeRNAZebrafishRNA

Identifiers

PMID29346415
PMCPMC5773193
OpenAlexW2793596752

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.