title: Analysis of hypoxia-inducible factor 1alpha expression and its effects on invasion and metastasis.
abstract: Hypoxia-inducible factor 1 (HIF-1) plays an important role in human cancer cell invasion and metastasis. As a result, overexpression of the HIF-1alpha subunit in biopsy specimens is associated with increased patient mortality in several common cancers, including breast adenocarcinoma and oropharyngeal squamous cell carcinoma. Here, we describe methods for immunohistochemical detection of HIF-1alpha in tumor biopsy sections and ex vivo assays for analyzing the effects of hypoxia and HIF-1 on cancer cell invasiveness and cell-cell adhesion.
authors.affiliation: Vascular Biology Program, Institute for Cell Engineering, Department of Pediatrics, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.
authors.forename: Balaji
authors.initials: B
authors.lastname: Krishnamachary
authors.forename: Gregg L
authors.initials: GL
authors.lastname: Semenza
mesh_terms: D001681:Biological Assay; D002448:Cell Adhesion; D006801:Humans; D051795:Hypoxia-Inducible Factor 1, alpha Subunit / Q000032:analysis* / Q000235:genetics / Q000378:metabolism; D007150:Immunohistochemistry / Q000379:methods*; D009361:Neoplasm Invasiveness; D009362:Neoplasm Metastasis; D009369:Neoplasms / Q000378:metabolism / Q000473:pathology*; D012333:RNA, Messenger / Q000032:analysis / Q000378:metabolism; D020133:Reverse Transcriptase Polymerase Chain Reaction
chemical_list: D051795:Hypoxia-Inducible Factor 1, alpha Subunit; D012333:RNA, Messenger