Abstract
Constitutive expression of human achaete-scute homolog-1 (hASH-1) in combination with simian virus large Tantigen under the Clara cell 10-kDa secretory protein (CC10) promoter results in adenocarcinomas with focal neuroendocrine (NE) differentiation. Mice carrying conditional alleles for both Rb-1 and p53 in lung epithelial cells develop aggressive lung tumors with similarities to human small cell lung cancers, including high level expression of ASH-1, NE markers, and extra-pulmonary metastases. Tumors in both models originate from bronchiolar epithelium, reveal a range of premalignant changes, express thyroid transcription factor-1 (TTF-1), a marker of peripheral airway cell lineage, and display varying degrees of bidirectional epithelial/NE differentiation.
MeSH terms
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Animals
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Antigens, Viral, Tumor / genetics
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Antigens, Viral, Tumor / metabolism
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Basic Helix-Loop-Helix Transcription Factors
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Biomarkers, Tumor / metabolism
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Carcinoma, Neuroendocrine / genetics
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Carcinoma, Neuroendocrine / metabolism
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Carcinoma, Neuroendocrine / secondary*
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Carcinoma, Non-Small-Cell Lung / genetics
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Carcinoma, Non-Small-Cell Lung / metabolism
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Carcinoma, Non-Small-Cell Lung / secondary*
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Cell Cycle Proteins / genetics
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Cell Cycle Proteins / metabolism
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Cell Transformation, Neoplastic
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DNA-Binding Proteins / genetics
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DNA-Binding Proteins / metabolism
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Disease Models, Animal*
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E2F Transcription Factors
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Humans
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Immunoenzyme Techniques
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Lung Neoplasms / genetics
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Lung Neoplasms / metabolism
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Lung Neoplasms / pathology*
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Mice
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Mice, Transgenic
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Nuclear Proteins / genetics
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Nuclear Proteins / metabolism
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Precancerous Conditions / genetics
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Precancerous Conditions / metabolism
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Precancerous Conditions / pathology*
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Respiratory Mucosa / metabolism
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Respiratory Mucosa / pathology
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Thyroid Nuclear Factor 1
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Transcription Factors / genetics*
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Transcription Factors / metabolism
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Tumor Suppressor Protein p53 / genetics
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Tumor Suppressor Protein p53 / metabolism
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Uteroglobin / genetics
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Uteroglobin / metabolism
Substances
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ASCL1 protein, human
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Antigens, Viral, Tumor
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Ascl1 protein, mouse
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Basic Helix-Loop-Helix Transcription Factors
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Biomarkers, Tumor
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Cell Cycle Proteins
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DNA-Binding Proteins
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E2F Transcription Factors
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NKX2-1 protein, human
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Nkx2-1 protein, mouse
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Nuclear Proteins
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SCGB1A1 protein, human
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Scgb1a1 protein, mouse
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Thyroid Nuclear Factor 1
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Transcription Factors
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Tumor Suppressor Protein p53
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Uteroglobin