TY - JOUR

T1 - Hypoxia-inducible factor 1α predicts recurrence in high-grade soft tissue sarcoma of extremities and trunk wall

AU - Nyström, H

AU - Jönsson, M

AU - Werner-Hartman, L

AU - Nilbert, M

AU - Carneiro, A

N1 - Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/.

PY - 2017

Y1 - 2017

N2 - BACKGROUND AND AIM: Sarcomas are of mesenchymal origin and typically show abundant tumour stroma and presence of necrosis. In search for novel biomarkers for personalised therapy, we determined the prognostic impact of stromal markers, hypoxia and neovascularity in high-grade soft tissue leiomyosarcoma and pleomorphic undifferentiated sarcoma.METHOD: We evaluated CD163, colony-stimulating factor (CSF)-1, CD16 and hypoxia-inducible factor 1 (HIF-1)α using immunohistochemical staining and assessed microvessel density using CD31 in 73 high-grade leiomyosarcomas and undifferentiated pleomorphic sarcomas of the extremities and the trunk wall. The results were correlated to metastasis-free and overall survival.RESULTS: Expression of HIF-1α was associated with the presence of necrosis and independently predicted shorter metastasis-free survival (HR 3.2, CI 1.4 to 7.0, p=0.004), whereas neither expression of the stromal markers CD163, CD16 and CSF-1 nor microvessel density was prognostically relevant in this series.CONCLUSIONS: There is increasing evidence for the prognostic role of hypoxia in high-grade soft tissue sarcoma, and these data suggest that HIF-1α expression represents a candidate prognostic biomarker for clinical application in high-grade leiomyosarcoma and undifferentiated pleomorphic sarcoma.

AB - BACKGROUND AND AIM: Sarcomas are of mesenchymal origin and typically show abundant tumour stroma and presence of necrosis. In search for novel biomarkers for personalised therapy, we determined the prognostic impact of stromal markers, hypoxia and neovascularity in high-grade soft tissue leiomyosarcoma and pleomorphic undifferentiated sarcoma.METHOD: We evaluated CD163, colony-stimulating factor (CSF)-1, CD16 and hypoxia-inducible factor 1 (HIF-1)α using immunohistochemical staining and assessed microvessel density using CD31 in 73 high-grade leiomyosarcomas and undifferentiated pleomorphic sarcomas of the extremities and the trunk wall. The results were correlated to metastasis-free and overall survival.RESULTS: Expression of HIF-1α was associated with the presence of necrosis and independently predicted shorter metastasis-free survival (HR 3.2, CI 1.4 to 7.0, p=0.004), whereas neither expression of the stromal markers CD163, CD16 and CSF-1 nor microvessel density was prognostically relevant in this series.CONCLUSIONS: There is increasing evidence for the prognostic role of hypoxia in high-grade soft tissue sarcoma, and these data suggest that HIF-1α expression represents a candidate prognostic biomarker for clinical application in high-grade leiomyosarcoma and undifferentiated pleomorphic sarcoma.

KW - Adult

KW - Aged

KW - Aged, 80 and over

KW - Biomarkers, Tumor/analysis

KW - Disease-Free Survival

KW - Extremities

KW - Female

KW - Humans

KW - Hypoxia-Inducible Factor 1, alpha Subunit/biosynthesis

KW - Immunohistochemistry

KW - Male

KW - Middle Aged

KW - Neoplasm Recurrence, Local/mortality

KW - Prognosis

KW - Sarcoma/mortality

KW - Soft Tissue Neoplasms/mortality

KW - Tissue Array Analysis

KW - Torso

U2 - 10.1136/jclinpath-2016-204149

DO - 10.1136/jclinpath-2016-204149

M3 - Journal article

C2 - 28404817

VL - 70

SP - 879

EP - 885

JO - Journal of Clinical Pathology

JF - Journal of Clinical Pathology

SN - 0021-9746

IS - 10

ER -