Cited by 226Cancer, Hypoxia, and MetabolismRedox biology and oxidative stressMitochondrial Function and Pathology

Genetic Screen for Cell Fitness in High or Low Oxygen Highlights Mitochondrial and Lipid Metabolism

Open access
Jain, Isha H., Calvo, Sarah E., Markhard, Andrew L., Skinner, Owen S., To, Tsz-Leung, Ast, Tslil, Mootha, Vamsi K.·2020·Cell

Abstract

Human cells are able to sense and adapt to variations in oxygen levels. Historically, much research in this field has focused on hypoxia-inducible factor (HIF) signaling and reactive oxygen species (ROS). Here, we perform genome-wide CRISPR growth screens at 21%, 5%, and 1% oxygen to systematically identify gene knockouts with relative fitness defects in high oxygen (213 genes) or low oxygen (109 genes), most without known connection to HIF or ROS. Knockouts of many mitochondrial pathways thought to be essential, including complex I and enzymes in Fe-S biosynthesis, grow relatively well at low oxygen and thus are buffered by hypoxia. In contrast, in certain cell types, knockout of lipid biosynthetic and peroxisomal genes causes fitness defects only in low oxygen. Our resource nominates genetic diseases whose severity may be modulated by oxygen and links hundreds of genes to oxygen homeostasis.

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 · 10.1016/j.cell.2020.03.029

Cites

71 of 71 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?

  • Many autophagy-related genes (WIPI2, ATG9A, ATG13, ATG14, BECN1) were common hits in the ROS and lipid peroxidation screens.

    “Many autophagy-related genes were also common hits in the two screens (Fig. 2 d,e), such as WIPI2, ATG9A, ATG13, ATG14, and BECN1, suggesting an important role of autophagy in maintaining redox homeostasis in cells, as reported in previous studies31–33.”
  • Autophagy plays an important role in maintaining redox homeostasis in cells.

    “Many autophagy-related genes were also common hits in the two screens (Fig. 2 d,e), such as WIPI2, ATG9A, ATG13, ATG14, and BECN1, suggesting an important role of autophagy in maintaining redox homeostasis in cells, as reported in previous studies31–33.”

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

Cited by

Sorted by citations

Authors
Jain, I. H., Calvo, S. E., Markhard, A. L., Skinner, O. S., To, T.-L., Ast, T., & Mootha, V. K.
Affiliations
Broad Institute (US)
Corresponding author
Mootha, Vamsi K.
Venue
Cell
Publisher
Elsevier BV
Published
2020-04
Volume
181
Issue
3
Pages
716-727.e11
ISSN
0092-8674 (ISSN-L)
OpenAlex
W3014660178
Cited by
224
References
71
Citations by year
2026: 30 · 2025: 42 · 2024: 33 · 2023: 37 · 2022: 30 · 2021: 37 · 2020: 14 · 2019: 1
FWCI
10.09
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (submittedVersion)
Funders
  • National Institutes of Health (1F32GM133047-01)
  • J. Willard and Alice S. Marriott Foundation
  • U.S. Department of Energy
  • Howard Hughes Medical Institute
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer, Hypoxia, and Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
Keywords
oxygen homeostasis, hypoxia, cell fitness, genome-wide CRISPR screen, mitochondrial metabolism, lipid metabolism, complex I, peroxisomes, lipogenesis, hypoxia-inducible factor, reactive oxygen species
MeSH terms
Hypoxia, Genetic Testing, Humans, Lipids, Mitochondria, Oxygen, Signal Transduction, Cell Hypoxia, Reactive Oxygen Species, K562 Cells, Lipid Metabolism, Genome-Wide Association Study, HEK293 Cells, Transcriptome

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