CRISPR-based large-scale modeling of loss-of-function mutations to investigate mechanisms of stress resistance in cancer

Summary: Dissecting mechanisms driving subclone expansion in primary cancers has been challenging. Here, we present a protocol to systematically disrupt entire gene networks and assess the functional impact of this perturbation on cancer cell fitness. By combining arrayed CRISPR libraries and high-c...

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Main Authors: Fabrizio Simeoni, Ioannis Loukas, Thomas Stuart Wilson, Paola Scaffidi
Format: Article
Language:English
Published: Elsevier 2023-03-01
Series:STAR Protocols
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666166723000552
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author Fabrizio Simeoni
Ioannis Loukas
Thomas Stuart Wilson
Paola Scaffidi
author_facet Fabrizio Simeoni
Ioannis Loukas
Thomas Stuart Wilson
Paola Scaffidi
author_sort Fabrizio Simeoni
collection DOAJ
description Summary: Dissecting mechanisms driving subclone expansion in primary cancers has been challenging. Here, we present a protocol to systematically disrupt entire gene networks and assess the functional impact of this perturbation on cancer cell fitness. By combining arrayed CRISPR libraries and high-content microscopy, we describe steps to identify classes of genes whose inactivation promotes resistance to environmental challenges faced by cancer cells during tumor growth or upon therapy. A proof-of-principle interrogation of the epigenetic regulatory network is described.For complete details on the use and execution of this protocol, please refer to Loukas et al. (2022).1 : Publisher’s note: Undertaking any experimental protocol requires adherence to local institutional guidelines for laboratory safety and ethics.
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spelling doaj.art-e853ea83f60c4e0b99a1d782f32274a82023-02-13T04:07:36ZengElsevierSTAR Protocols2666-16672023-03-0141102097CRISPR-based large-scale modeling of loss-of-function mutations to investigate mechanisms of stress resistance in cancerFabrizio Simeoni0Ioannis Loukas1Thomas Stuart Wilson2Paola Scaffidi3Cancer Epigenetics Laboratory, The Francis Crick Institute, NW1 1AT London, UK; Corresponding authorCancer Epigenetics Laboratory, The Francis Crick Institute, NW1 1AT London, UKCancer Epigenetics Laboratory, The Francis Crick Institute, NW1 1AT London, UKCancer Epigenetics Laboratory, The Francis Crick Institute, NW1 1AT London, UK; Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, 20139 Milan, Italy; Corresponding authorSummary: Dissecting mechanisms driving subclone expansion in primary cancers has been challenging. Here, we present a protocol to systematically disrupt entire gene networks and assess the functional impact of this perturbation on cancer cell fitness. By combining arrayed CRISPR libraries and high-content microscopy, we describe steps to identify classes of genes whose inactivation promotes resistance to environmental challenges faced by cancer cells during tumor growth or upon therapy. A proof-of-principle interrogation of the epigenetic regulatory network is described.For complete details on the use and execution of this protocol, please refer to Loukas et al. (2022).1 : Publisher’s note: Undertaking any experimental protocol requires adherence to local institutional guidelines for laboratory safety and ethics.http://www.sciencedirect.com/science/article/pii/S2666166723000552Cell BiologyCell-based AssaysCancerGeneticsHigh-throughput ScreeningMolecular Biology
spellingShingle Fabrizio Simeoni
Ioannis Loukas
Thomas Stuart Wilson
Paola Scaffidi
CRISPR-based large-scale modeling of loss-of-function mutations to investigate mechanisms of stress resistance in cancer
STAR Protocols
Cell Biology
Cell-based Assays
Cancer
Genetics
High-throughput Screening
Molecular Biology
title CRISPR-based large-scale modeling of loss-of-function mutations to investigate mechanisms of stress resistance in cancer
title_full CRISPR-based large-scale modeling of loss-of-function mutations to investigate mechanisms of stress resistance in cancer
title_fullStr CRISPR-based large-scale modeling of loss-of-function mutations to investigate mechanisms of stress resistance in cancer
title_full_unstemmed CRISPR-based large-scale modeling of loss-of-function mutations to investigate mechanisms of stress resistance in cancer
title_short CRISPR-based large-scale modeling of loss-of-function mutations to investigate mechanisms of stress resistance in cancer
title_sort crispr based large scale modeling of loss of function mutations to investigate mechanisms of stress resistance in cancer
topic Cell Biology
Cell-based Assays
Cancer
Genetics
High-throughput Screening
Molecular Biology
url http://www.sciencedirect.com/science/article/pii/S2666166723000552
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AT thomasstuartwilson crisprbasedlargescalemodelingoflossoffunctionmutationstoinvestigatemechanismsofstressresistanceincancer
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