An in vivo functional genomics screen of nuclear receptors and their co-regulators identifies FOXA1 as an essential gene in lung tumorigenesis

Using a mini-library of 1062 lentiviral shRNAs targeting 40 nuclear hormone receptors and 70 of their co-regulators, we searched for potential therapeutic targets that would be important during in vivo tumor growth using a parallel in vitro and in vivo shRNA screening strategy in the non-small cell...

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Main Authors: Suzie K. Hight, Allison Mootz, Rahul K. Kollipara, Elizabeth McMillan, Paul Yenerall, Yoichi Otaki, Long-Shan Li, Kimberley Avila, Michael Peyton, Jaime Rodriguez-Canales, Barbara Mino, Pamela Villalobos, Luc Girard, Patrick Dospoy, Jill Larsen, Michael A. White, John V. Heymach, Ignacio I. Wistuba, Ralf Kittler, John D. Minna
Format: Article
Language:English
Published: Elsevier 2020-08-01
Series:Neoplasia: An International Journal for Oncology Research
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1476558620301172
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language English
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author Suzie K. Hight
Allison Mootz
Rahul K. Kollipara
Elizabeth McMillan
Paul Yenerall
Yoichi Otaki
Long-Shan Li
Kimberley Avila
Michael Peyton
Jaime Rodriguez-Canales
Barbara Mino
Pamela Villalobos
Luc Girard
Patrick Dospoy
Jill Larsen
Michael A. White
John V. Heymach
Ignacio I. Wistuba
Ralf Kittler
John D. Minna
spellingShingle Suzie K. Hight
Allison Mootz
Rahul K. Kollipara
Elizabeth McMillan
Paul Yenerall
Yoichi Otaki
Long-Shan Li
Kimberley Avila
Michael Peyton
Jaime Rodriguez-Canales
Barbara Mino
Pamela Villalobos
Luc Girard
Patrick Dospoy
Jill Larsen
Michael A. White
John V. Heymach
Ignacio I. Wistuba
Ralf Kittler
John D. Minna
An in vivo functional genomics screen of nuclear receptors and their co-regulators identifies FOXA1 as an essential gene in lung tumorigenesis
Neoplasia: An International Journal for Oncology Research
Non-small cell lung cancer
FOXA1
NKX2-1
Pooled shRNA screens
Xenograft
author_facet Suzie K. Hight
Allison Mootz
Rahul K. Kollipara
Elizabeth McMillan
Paul Yenerall
Yoichi Otaki
Long-Shan Li
Kimberley Avila
Michael Peyton
Jaime Rodriguez-Canales
Barbara Mino
Pamela Villalobos
Luc Girard
Patrick Dospoy
Jill Larsen
Michael A. White
John V. Heymach
Ignacio I. Wistuba
Ralf Kittler
John D. Minna
author_sort Suzie K. Hight
title An in vivo functional genomics screen of nuclear receptors and their co-regulators identifies FOXA1 as an essential gene in lung tumorigenesis
title_short An in vivo functional genomics screen of nuclear receptors and their co-regulators identifies FOXA1 as an essential gene in lung tumorigenesis
title_full An in vivo functional genomics screen of nuclear receptors and their co-regulators identifies FOXA1 as an essential gene in lung tumorigenesis
title_fullStr An in vivo functional genomics screen of nuclear receptors and their co-regulators identifies FOXA1 as an essential gene in lung tumorigenesis
title_full_unstemmed An in vivo functional genomics screen of nuclear receptors and their co-regulators identifies FOXA1 as an essential gene in lung tumorigenesis
title_sort in vivo functional genomics screen of nuclear receptors and their co-regulators identifies foxa1 as an essential gene in lung tumorigenesis
publisher Elsevier
series Neoplasia: An International Journal for Oncology Research
issn 1476-5586
publishDate 2020-08-01
description Using a mini-library of 1062 lentiviral shRNAs targeting 40 nuclear hormone receptors and 70 of their co-regulators, we searched for potential therapeutic targets that would be important during in vivo tumor growth using a parallel in vitro and in vivo shRNA screening strategy in the non-small cell lung cancer (NSCLC) line NCI-H1819. We identified 21 genes essential for in vitro growth, and nine genes specifically required for tumor survival in vivo, but not in vitro: NCOR2, FOXA1, HDAC1, RXRA, RORB, RARB, MTA2, ETV4, and NR1H2. We focused on FOXA1, since it lies within the most frequently amplified genomic region in lung adenocarcinomas. We found that 14q-amplification in NSCLC cell lines was a biomarker for FOXA1 dependency for both in vivo xenograft growth and colony formation, but not mass culture growth in vitro. FOXA1 knockdown identified genes involved in electron transport among the most differentially regulated, indicating FOXA1 loss may lead to a decrease in cellular respiration. In support of this, FOXA1 amplification was correlated with increased sensitivity to the complex I inhibitor phenformin. Integrative ChipSeq analyses reveal that FOXA1 functions in this genetic context may be at least partially independent of NKX2-1. Our findings are consistent with a neomorphic function for amplified FOXA1, driving an oncogenic transcriptional program. These data provide new insight into the functional consequences of FOXA1 amplification in lung adenocarcinomas, and identify new transcriptional networks for exploration of therapeutic vulnerabilities in this patient population.
topic Non-small cell lung cancer
FOXA1
NKX2-1
Pooled shRNA screens
Xenograft
url http://www.sciencedirect.com/science/article/pii/S1476558620301172
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spelling doaj-482fd373bde3424183dc0e497a6a39202020-11-25T03:49:33ZengElsevierNeoplasia: An International Journal for Oncology Research1476-55862020-08-01228294310An in vivo functional genomics screen of nuclear receptors and their co-regulators identifies FOXA1 as an essential gene in lung tumorigenesisSuzie K. Hight0Allison Mootz1Rahul K. Kollipara2Elizabeth McMillan3Paul Yenerall4Yoichi Otaki5Long-Shan Li6Kimberley Avila7Michael Peyton8Jaime Rodriguez-Canales9Barbara Mino10Pamela Villalobos11Luc Girard12Patrick Dospoy13Jill Larsen14Michael A. White15John V. Heymach16Ignacio I. Wistuba17Ralf Kittler18John D. Minna19Hamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, Dallas, TX, USA; Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA; Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX, USAHamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, Dallas, TX, USA; Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USAEugene McDermott Center for Human Genetics, University of Texas Southwestern Medical Center, Dallas, TX, USADepartment of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX, USAHamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, Dallas, TX, USA; Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA; Eugene McDermott Center for Human Genetics, University of Texas Southwestern Medical Center, Dallas, TX, USAHamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, Dallas, TX, USA; Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA; Department of General Surgical Science, Gunma University Graduate School of Medicine, Maebashi, JapanHamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, Dallas, TX, USA; Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USAHamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, Dallas, TX, USA; Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USAHamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, Dallas, TX, USA; Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USADepartment of Translational and Molecular Pathology, MD Anderson Cancer Center, Houston, TX, USADepartment of Translational and Molecular Pathology, MD Anderson Cancer Center, Houston, TX, USADepartment of Translational and Molecular Pathology, MD Anderson Cancer Center, Houston, TX, USAHamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, Dallas, TX, USA; Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USAHamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, Dallas, TX, USA; Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA; Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USAHamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, Dallas, TX, USA; Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA; QIMR Berghofer Medical Research Institute, Brisbane, Queensland, AustraliaDepartment of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX, USADepartment Thoracic and Head and Neck Medical Oncology, MD Anderson Cancer Center, Houston, TX, USADepartment of Translational and Molecular Pathology, MD Anderson Cancer Center, Houston, TX, USAEugene McDermott Center for Human Genetics, University of Texas Southwestern Medical Center, Dallas, TX, USAHamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, Dallas, TX, USA; Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX, USA; Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA; Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, TX, USA; Corresponding author at: Hamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, 6000 Harry Hines Blvd, Dallas, TX 75390-8593.Using a mini-library of 1062 lentiviral shRNAs targeting 40 nuclear hormone receptors and 70 of their co-regulators, we searched for potential therapeutic targets that would be important during in vivo tumor growth using a parallel in vitro and in vivo shRNA screening strategy in the non-small cell lung cancer (NSCLC) line NCI-H1819. We identified 21 genes essential for in vitro growth, and nine genes specifically required for tumor survival in vivo, but not in vitro: NCOR2, FOXA1, HDAC1, RXRA, RORB, RARB, MTA2, ETV4, and NR1H2. We focused on FOXA1, since it lies within the most frequently amplified genomic region in lung adenocarcinomas. We found that 14q-amplification in NSCLC cell lines was a biomarker for FOXA1 dependency for both in vivo xenograft growth and colony formation, but not mass culture growth in vitro. FOXA1 knockdown identified genes involved in electron transport among the most differentially regulated, indicating FOXA1 loss may lead to a decrease in cellular respiration. In support of this, FOXA1 amplification was correlated with increased sensitivity to the complex I inhibitor phenformin. Integrative ChipSeq analyses reveal that FOXA1 functions in this genetic context may be at least partially independent of NKX2-1. Our findings are consistent with a neomorphic function for amplified FOXA1, driving an oncogenic transcriptional program. These data provide new insight into the functional consequences of FOXA1 amplification in lung adenocarcinomas, and identify new transcriptional networks for exploration of therapeutic vulnerabilities in this patient population.http://www.sciencedirect.com/science/article/pii/S1476558620301172Non-small cell lung cancerFOXA1NKX2-1Pooled shRNA screensXenograft