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N Engl J Med. 2012 Sep 6;367(10):922-30. doi: 10.1056/NEJMoa1205119.

Somatic HIF2A gain-of-function mutations in paraganglioma with polycythemia.

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  • 1Surgical Neurology Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA.

Abstract

Hypoxia-inducible factors are transcription factors controlling energy, iron metabolism, erythropoiesis, and development. When these proteins are dysregulated, they contribute to tumorigenesis and cancer progression. However, mutations in genes encoding α subunits of hypoxia-inducible factors (HIF-α) have not previously been identified in any cancer. Here we report two novel somatic gain-of-function mutations in the gene encoding hypoxia-inducible factor 2α (HIF2A) in two patients, one presenting with paraganglioma and the other with paraganglioma and somatostatinoma, both of whom had polycythemia. The two mutations were associated with increased HIF-2α activity and increased protein half-life.

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PMID:
22931260
[PubMed - indexed for MEDLINE]
PMCID:
PMC3432945
Free PMC Article

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