Hypoxia-associated markers in gastric carcinogenesis and HIF-2alpha in gastric and gastro-oesophageal cancer prognosis.
AuthorsGriffiths, Ewen A
Pritchard, S A
McGrath, S M
Valentine, Helen R
Price, Patricia M
Welch, I M
West, Catharine M L
AffiliationAcademic Department of Radiation Oncology, School of Cancer & Imaging Sciences, The University of Manchester, Christie Hospital, Wilmslow Road, Withington, Manchester M20 4BX, UK.
MetadataShow full item record
AbstractThe study investigated hypoxia-associated markers (HIF-2alpha, Epo, Epo-R, Glut-1 and VEGF) along with Ki-67 in a gastric carcinogenesis model, and the prognostic significance of hypoxia-inducible factor (HIF)-2alpha in surgically treated gastro-oesophageal cancer. Protein expression was examined using immunohistochemistry on formalin-fixed, paraffin-embedded biopsies of normal mucosa (n=20), Helicobacter pylori-associated gastritis (n=24), intestinal metaplasia (n=24), dysplasia (n=12) and intestinal (n=19) and diffuse (n=21) adenocarcinoma. Relationships between HIF-2alpha expression and prognosis were assessed in resection specimens from 177 patients with gastric and gastro-oesophageal junction adenocarcinoma. Expression of all markers increased with progression along the gastric carcinogenesis sequence (P=0.0001). Hypoxia-inducible factor-2alpha was expressed in 63% of 177 resection specimens and at a high level in 44%. The median overall survival in patients with HIF-2alpha-expressing tumours was 22 (95% CI 18-26) months, whereas those with HIF-2alpha-negative tumours had a median survival of 37 (95% CI 29-44) months (P=0.015). Hypoxia-inducible factor-2alpha had no independent prognostic significance in multivariate analysis. In view of the lack of independent prognostic significance, HIF-2alpha has no role as a routine prognostic indicator. However, the high expression of HIF-2alpha suggests that it may be of value as a potential therapeutic target.
CitationHypoxia-associated markers in gastric carcinogenesis and HIF-2alpha in gastric and gastro-oesophageal cancer prognosis. 2008, 98 (5):965-73 Br. J. Cancer
JournalBritish Journal of Cancer
- Hypoxia-inducible factor-1alpha expression in the gastric carcinogenesis sequence and its prognostic role in gastric and gastro-oesophageal adenocarcinomas.
- Authors: Griffiths EA, Pritchard SA, Valentine HR, Whitchelo N, Bishop PW, Ebert MP, Price PM, Welch IM, West CM
- Issue date: 2007 Jan 15
- Increasing expression of hypoxia-inducible proteins in the Barrett's metaplasia-dysplasia-adenocarcinoma sequence.
- Authors: Griffiths EA, Pritchard SA, McGrath SM, Valentine HR, Price PM, Welch IM, West CM
- Issue date: 2007 May 7
- Expression of hypoxia-inducible factor 1alpha, hypoxia-inducible factor 2alpha, and von Hippel-Lindau protein in epithelial ovarian neoplasms and allelic loss of von Hippel-Lindau gene: nuclear expression of hypoxia-inducible factor 1alpha is an independent prognostic factor in ovarian carcinoma.
- Authors: Osada R, Horiuchi A, Kikuchi N, Yoshida J, Hayashi A, Ota M, Katsuyama Y, Melillo G, Konishi I
- Issue date: 2007 Sep
- Analysis of various potential prognostic markers and survival data in clear cell renal cell carcinoma.
- Authors: Ebru T, Fulya OP, Hakan A, Vuslat YC, Necdet S, Nuray C, Filiz O
- Issue date: 2017 May-Jun
- Hypoxia-inducible factor-2alpha correlates to distant recurrence and poor outcome in invasive breast cancer.
- Authors: Helczynska K, Larsson AM, Holmquist Mengelbier L, Bridges E, Fredlund E, Borgquist S, Landberg G, Påhlman S, Jirström K
- Issue date: 2008 Nov 15