Acute hypoxia induces upregulation of microRNA-210 expression in glioblastoma spheroids

Tine Agerbo Rosenberg, Mads Thomassen, Stine Skov Jensen, Martin Jakob Larsen, Kristina Pilekær Sørensen, Simon Kjær Hermansen, Torben A Kruse, Bjarne Winther Kristensen

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Abstract

AIM: Tumor hypoxia and presence of tumor stem cells are related to therapeutic resistance and tumorigenicity in glioblastomas. The aim of the present study was therefore to identify microRNAs deregulated in acute hypoxia and to identify possible associated changes in stem cell markers.

MATERIALS & METHODS: Glioblastoma spheroid cultures were grown in either 2 or 21% oxygen. Subsequently, miRNA profiling was performed and expression of ten stem cell markers was examined.

RESULTS: MiRNA-210 was significantly upregulated in hypoxia in patient-derived spheroids. The stem cell markers displayed a complex regulatory pattern.

CONCLUSION: MiRNA-210 appears to be upregulated in hypoxia in immature glioblastoma cells. This miRNA may represent a therapeutic target although it is not clear from the results whether this miRNA may be related to specific cancer stem cell functions.

OriginalsprogEngelsk
TidsskriftCNS Oncology
Vol/bind4
Udgave nummer1
Sider (fra-til)25-35
Antal sider11
ISSN2045-0907
DOI
StatusUdgivet - 2015

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