A multiplexed in vivo approach to identify driver genes in small cell lung cancer

Myung Chang Lee; Hongchen Cai; Christopher W. Murray; Chuan Li; Yan Ting Shue; Laura Andrejka; Andy L. He; Alessandra M.E. Holzem; Alexandros P. Drainas; Julie H. Ko; Garry L. Coles; Christina Kong; Shirley Zhu; ChunFang Zhu; Jason Wang; Matt van de Rijn; Dmitri A. Petrov; Monte M. Winslow; Julien Sage

Cell Reports (Jan 2023)

A multiplexed in vivo approach to identify driver genes in small cell lung cancer

Myung Chang Lee,
Hongchen Cai,
Christopher W. Murray,
Chuan Li,
Yan Ting Shue,
Laura Andrejka,
Andy L. He,
Alessandra M.E. Holzem,
Alexandros P. Drainas,
Julie H. Ko,
Garry L. Coles,
Christina Kong,
Shirley Zhu,
ChunFang Zhu,
Jason Wang,
Matt van de Rijn,
Dmitri A. Petrov,
Monte M. Winslow,
Julien Sage

Affiliations

Myung Chang Lee: Department of Pediatrics, Stanford University, 265 Campus Drive, SIM1 G2078, Stanford, CA 94305, USA; Department of Genetics, Stanford University, Stanford, CA 94305, USA
Hongchen Cai: Department of Genetics, Stanford University, Stanford, CA 94305, USA
Christopher W. Murray: Department of Genetics, Stanford University, Stanford, CA 94305, USA
Chuan Li: Department of Biology, Stanford University, Stanford, CA 94305, USA
Yan Ting Shue: Department of Pediatrics, Stanford University, 265 Campus Drive, SIM1 G2078, Stanford, CA 94305, USA; Department of Genetics, Stanford University, Stanford, CA 94305, USA
Laura Andrejka: Department of Genetics, Stanford University, Stanford, CA 94305, USA
Andy L. He: Department of Pediatrics, Stanford University, 265 Campus Drive, SIM1 G2078, Stanford, CA 94305, USA; Department of Genetics, Stanford University, Stanford, CA 94305, USA
Alessandra M.E. Holzem: Department of Pediatrics, Stanford University, 265 Campus Drive, SIM1 G2078, Stanford, CA 94305, USA; Department of Genetics, Stanford University, Stanford, CA 94305, USA
Alexandros P. Drainas: Department of Pediatrics, Stanford University, 265 Campus Drive, SIM1 G2078, Stanford, CA 94305, USA; Department of Genetics, Stanford University, Stanford, CA 94305, USA
Julie H. Ko: Department of Pediatrics, Stanford University, 265 Campus Drive, SIM1 G2078, Stanford, CA 94305, USA; Department of Genetics, Stanford University, Stanford, CA 94305, USA
Garry L. Coles: Department of Pediatrics, Stanford University, 265 Campus Drive, SIM1 G2078, Stanford, CA 94305, USA; Department of Genetics, Stanford University, Stanford, CA 94305, USA
Christina Kong: Department of Pathology, Stanford University, Stanford, CA 94305, USA
Shirley Zhu: Department of Pathology, Stanford University, Stanford, CA 94305, USA
ChunFang Zhu: Department of Pathology, Stanford University, Stanford, CA 94305, USA
Jason Wang: Department of Pathology, Stanford University, Stanford, CA 94305, USA
Matt van de Rijn: Department of Pathology, Stanford University, Stanford, CA 94305, USA
Dmitri A. Petrov: Department of Biology, Stanford University, Stanford, CA 94305, USA; Chan Zuckerberg Biohub, San Francisco, CA 94158, USA
Monte M. Winslow: Department of Genetics, Stanford University, Stanford, CA 94305, USA; Department of Pathology, Stanford University, Stanford, CA 94305, USA
Julien Sage: Department of Pediatrics, Stanford University, 265 Campus Drive, SIM1 G2078, Stanford, CA 94305, USA; Department of Genetics, Stanford University, Stanford, CA 94305, USA; Corresponding author

Journal volume & issue: Vol. 42, no. 1
p. 111990

Abstract

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Summary: Small cell lung cancer (SCLC) is a lethal form of lung cancer. Here, we develop a quantitative multiplexed approach on the basis of lentiviral barcoding with somatic CRISPR-Cas9-mediated genome editing to functionally investigate candidate regulators of tumor initiation and growth in genetically engineered mouse models of SCLC. We found that naphthalene pre-treatment enhances lentiviral vector-mediated SCLC initiation, enabling high multiplicity of tumor clones for analysis through high-throughput sequencing methods. Candidate drivers of SCLC identified from a meta-analysis across multiple human SCLC genomic datasets were tested using this approach, which defines both positive and detrimental impacts of inactivating 40 genes across candidate pathways on SCLC development. This analysis and subsequent validation in human SCLC cells establish TSC1 in the PI3K-AKT-mTOR pathway as a robust tumor suppressor in SCLC. This approach should illuminate drivers of SCLC, facilitate the development of precision therapies for defined SCLC genotypes, and identify therapeutic targets.

CP: Cancer

Published in Cell Reports

ISSN: 2211-1247 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Biology (General)
Website: http://www.cell.com/cell-reports/home

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