Cited by 144Gene Regulatory Network AnalysisCRISPR and Genetic EngineeringMicrobial Metabolic Engineering and Bioproduction

Synthetic multistability in mammalian cells

Open access
Zhu, Ronghui, del Rio-Salgado, Jesus M., Garcia-Ojalvo, Jordi, Elowitz, Michael B.·2022·Science

Published version of a preprint

Abstract

In multicellular organisms, gene regulatory circuits generate thousands of molecularly distinct, mitotically heritable states through the property of multistability. Designing synthetic multistable circuits would provide insight into natural cell fate control circuit architectures and would allow engineering of multicellular programs that require interactions among distinct cell types. We created MultiFate, a naturally inspired, synthetic circuit that supports long-term, controllable, and expandable multistability in mammalian cells. MultiFate uses engineered zinc finger transcription factors that transcriptionally self-activate as homodimers and mutually inhibit one another through heterodimerization. Using a model-based design, we engineered MultiFate circuits that generate as many as seven states, each stable for at least 18 days. MultiFate permits controlled state switching and modulation of state stability through external inputs and can be expanded with additional transcription factors. These results provide a foundation for engineering multicellular behaviors in mammalian cells.

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 · 10.1126/science.abg9765

Cites

6 of 6 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

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

Authors
Zhu, R., del Rio-Salgado, J. M., Garcia-Ojalvo, J., & Elowitz, M. B.
Affiliations
  • California Institute of Technology (US)
  • Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA.
  • Department of Experimental and Health Sciences, Universitat Pompeu Fabra, 08003 Barcelona, Spain.
Corresponding author
Elowitz, Michael B.
Venue
Science
Published
2022-01-21
Volume
375
Issue
6578
Pages
eabg9765-eabg9765
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W4206552026
Cited by
144
References
6
Citations by year
2026: 25 · 2025: 37 · 2024: 31 · 2023: 26 · 2022: 22 · 2021: 3
FWCI
9.47
Type
journal article
Language
en
Open access
Locations
  • Science (publishedVersion)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion)
  • PubMed (publishedVersion)
  • CaltechAUTHORS (California Institute of Technology) (submittedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gene Regulatory Network Analysis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › CRISPR and Genetic Engineering
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Microbial Metabolic Engineering and Bioproduction
Keywords
synthetic gene circuits, multistability, cell fate regulation, zinc finger transcription factor, homodimerization, heterodimerization, state switching, multicellular behavior
MeSH terms
Animals, Cell Line, Cricetulus, Genetic Engineering, Models, Theoretical, Transcription Factors, Protein Engineering, Transcriptional Activation, Zinc Fingers, CHO Cells, Gene Regulatory Networks, Protein Multimerization, Protein Stability, Synthetic Biology

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