Evidence that SOX2 overexpression is oncogenic in the lung

SOX2 (Sry-box 2) is required to maintain a variety of stem cells, is overexpressed in some solid tumors, and is expressed in epithelial cells of the lung. We show that SOX2 is overexpressed in human squamous cell lung tumors and some adenocarcinomas. We have generated mouse models in which Sox2 is u...

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Veröffentlicht in:PloS one 2010-06, Vol.5 (6), p.e11022-e11022
Hauptverfasser: Lu, Yun, Futtner, Christopher, Rock, Jason R, Xu, Xia, Whitworth, Walter, Hogan, Brigid L M, Onaitis, Mark W
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container_end_page e11022
container_issue 6
container_start_page e11022
container_title PloS one
container_volume 5
creator Lu, Yun
Futtner, Christopher
Rock, Jason R
Xu, Xia
Whitworth, Walter
Hogan, Brigid L M
Onaitis, Mark W
description SOX2 (Sry-box 2) is required to maintain a variety of stem cells, is overexpressed in some solid tumors, and is expressed in epithelial cells of the lung. We show that SOX2 is overexpressed in human squamous cell lung tumors and some adenocarcinomas. We have generated mouse models in which Sox2 is upregulated in epithelial cells of the lung during development and in the adult. In both cases, overexpression leads to extensive hyperplasia. In the terminal bronchioles, a trachea-like pseudostratified epithelium develops with p63-positive cells underlying columnar cells. Over 12-34 weeks, about half of the mice expressing the highest levels of Sox2 develop carcinoma. These tumors resemble adenocarcinoma but express the squamous marker, Trp63 (p63). These findings demonstrate that Sox2 overexpression both induces a proximal phenotype in the distal airways/alveoli and leads to cancer.
doi_str_mv 10.1371/journal.pone.0011022
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We show that SOX2 is overexpressed in human squamous cell lung tumors and some adenocarcinomas. We have generated mouse models in which Sox2 is upregulated in epithelial cells of the lung during development and in the adult. In both cases, overexpression leads to extensive hyperplasia. In the terminal bronchioles, a trachea-like pseudostratified epithelium develops with p63-positive cells underlying columnar cells. Over 12-34 weeks, about half of the mice expressing the highest levels of Sox2 develop carcinoma. These tumors resemble adenocarcinoma but express the squamous marker, Trp63 (p63). 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We show that SOX2 is overexpressed in human squamous cell lung tumors and some adenocarcinomas. We have generated mouse models in which Sox2 is upregulated in epithelial cells of the lung during development and in the adult. In both cases, overexpression leads to extensive hyperplasia. In the terminal bronchioles, a trachea-like pseudostratified epithelium develops with p63-positive cells underlying columnar cells. Over 12-34 weeks, about half of the mice expressing the highest levels of Sox2 develop carcinoma. These tumors resemble adenocarcinoma but express the squamous marker, Trp63 (p63). These findings demonstrate that Sox2 overexpression both induces a proximal phenotype in the distal airways/alveoli and leads to cancer.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>20548776</pmid><doi>10.1371/journal.pone.0011022</doi><tpages>e11022</tpages><oa>free_for_read</oa></addata></record>
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subjects Adenocarcinoma
Alveoli
Analysis
Animal models
Animals
Breast cancer
Cell Biology
Cell Biology/Gene Expression
Consortia
Datasets
Decision making
Development and progression
Epithelial cells
Epithelium
Gene expression
Genetics and Genomics/Cancer Genetics
Genetics and Genomics/Disease Models
Genetics and Genomics/Gene Expression
Genetics and Genomics/Genomics
Genetics and Genomics/Medical Genetics
Genomics
Hyperplasia
Immunohistochemistry
Keratin
Lung - metabolism
Lung cancer
Lung Neoplasms - genetics
Lungs
Medical prognosis
Metastasis
Mice
Mice, Transgenic
Models, Animal
Oncogenes
Oncology/Lung Cancer
Polymerase Chain Reaction
Respiratory Medicine/Lung Cancer
Rodents
Solid tumors
SOXB1 Transcription Factors - genetics
Stains & staining
Stem cell transplantation
Stem cells
Surgery
Trachea
Transgenic animals
Tumors
title Evidence that SOX2 overexpression is oncogenic in the lung
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