Abstract
Hypoxia-inducible factors (HIFs) control the cellular response to hypoxia and, when dysregulated, contribute to tumorigenesis. Previously, we identified 2 gain-of-function somatic mutations in patients presenting with multiple paragangliomas or somatostatinomas, and polycythemia. Here, we report 2 additional unique HIF2A mutations, which disrupt the hydroxylation domain recognized by prolyl hydroxylase domain-2 containing protein, leading to stabilization of HIF-2α and increased expression of hypoxia-related genes.
Publication types
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Case Reports
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Research Support, N.I.H., Intramural
MeSH terms
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Abdominal Neoplasms / genetics
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Abdominal Neoplasms / metabolism
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Amino Acid Sequence
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Base Sequence
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Basic Helix-Loop-Helix Transcription Factors / chemistry
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Basic Helix-Loop-Helix Transcription Factors / genetics*
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Basic Helix-Loop-Helix Transcription Factors / metabolism
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Child
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Child, Preschool
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Female
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HeLa Cells
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Humans
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Models, Molecular
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Molecular Sequence Data
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Mutation* / physiology
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Oxygen / metabolism*
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Pancreatic Neoplasms / genetics*
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Pancreatic Neoplasms / metabolism
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Paraganglioma / genetics*
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Paraganglioma / metabolism
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Phylogeny
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Polycythemia / genetics*
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Polycythemia / metabolism
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Somatostatinoma / genetics*
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Somatostatinoma / metabolism
Substances
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Basic Helix-Loop-Helix Transcription Factors
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endothelial PAS domain-containing protein 1
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Oxygen