1
|
Abdrabou A, Duong BTV, Chen K, Atwal RS, Labib M, Lin S, Angers S, Kelley SO. nuPRISM: Microfluidic Genome-Wide Phenotypic Screening Platform for Cellular Nuclei. ACS Cent Sci 2022; 8:1618-1626. [PMID: 36589880 PMCID: PMC9801500 DOI: 10.1021/acscentsci.2c00836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Indexed: 06/17/2023]
Abstract
Genome-wide loss-of-function screens are critical tools to identify novel genetic regulators of intracellular proteins. However, studying the changes in the organelle-specific expression profile of intracellular proteins can be challenging due to protein localization differences across the whole cell, hindering context-dependent protein expression and activity analyses. Here, we describe nuPRISM, a microfluidics chip specifically designed for large-scale isolated nuclei sorting. The new device enables rapid genome-wide loss-of-function phenotypic CRISPR-Cas9 screens directed at intranuclear targets. We deployed this technology to identify novel genetic regulators of β-catenin nuclear accumulation, a phenotypic hallmark of APC-mutated colorectal cancer. nuPRISM expands our ability to capture aberrant nuclear morphological and functional traits associated with distinctive signal transduction and subcellular localization-driven functional processes with substantial resolution and high throughput.
Collapse
Affiliation(s)
- Abdalla
M. Abdrabou
- Department
of Biochemistry and Molecular Genetics, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, United States
| | - Bill T. V. Duong
- Department
of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario M5S 3M2, Canada
| | - Kangfu Chen
- Department
of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario M5S 3M2, Canada
| | - Randy Singh Atwal
- Department
of Biochemistry and Molecular Genetics, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, United States
| | - Mahmoud Labib
- Department
of Chemistry, Northwestern University, Evanston, Illinois 60611, United States
| | - Sichun Lin
- Terrence
Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario M5S 3E1, Canada
| | - Stephane Angers
- Department
of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario M5S 3M2, Canada
- Department
of Biochemistry, Faculty of Medicine, University
of Toronto, Toronto, Ontario M5S 1A8, Canada
- Terrence
Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, Ontario M5S 3E1, Canada
| | - Shana O. Kelley
- Department
of Biochemistry and Molecular Genetics, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, United States
- Department
of Chemistry, Northwestern University, Evanston, Illinois 60611, United States
- Department
of Biomedical Engineering, Northwestern
University, Evanston, Illinois 60611, United States
- Department
of Pharmaceutical Sciences, Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario M5S 3M2, Canada
| |
Collapse
|