Skip to main content
main-content

12.09.2018 | Original Paper

SOX3 can promote the malignant behavior of glioblastoma cells

Zeitschrift:
Cellular Oncology
Autoren:
Jelena Marjanovic Vicentic, Danijela Drakulic, Idoia Garcia, Vladanka Vukovic, Paula Aldaz, Nela Puskas, Igor Nikolic, Goran Tasic, Savo Raicevic, Laura Garros-Regulez, Nicolas Sampron, Michael J. Atkinson, Natasa Anastasov, Ander Matheu, Milena Stevanovic

Abstract

Purpose

Glioblastoma is the most common and lethal adult brain tumor. Despite current therapeutic strategies, including surgery, radiation and chemotherapy, the median survival of glioblastoma patients is 15 months. The development of this tumor depends on a sub-population of glioblastoma stem cells governing tumor propagation and therapy resistance. SOX3 plays a role in both normal neural development and carcinogenesis. However, little is known about its role in glioblastoma. Thus, the aim of this work was to elucidate the role of SOX3 in glioblastoma.

Methods

SOX3 expression was assessed using real-time quantitative PCR (RT-qPCR), Western blotting and immunohistochemistry. MTT, immunocytochemistry and Transwell assays were used to evaluate the effects of exogenous SOX3 overexpression on the viability, proliferation, migration and invasion of glioblastoma cells, respectively. The expression of Hedgehog signaling pathway components and autophagy markers was assessed using RT-qPCR and Western blot analyses, respectively.

Results

Higher levels of SOX3 expression were detected in a subset of primary glioblastoma samples compared to those in non-tumoral brain tissues. Exogenous overexpression of this gene was found to increase the proliferation, viability, migration and invasion of glioblastoma cells. We also found that SOX3 up-regulation was accompanied by an enhanced activity of the Hedgehog signaling pathway and by suppression of autophagy in glioblastoma cells. Additionally, we found that SOX3 expression was elevated in patient-derived glioblastoma stem cells, as well as in oncospheres derived from glioblastoma cell lines, compared to their differentiated counterparts, implying that SOX3 expression is associated with the undifferentiated state of glioblastoma cells.

Conclusion

From our data we conclude that SOX3 can promote the malignant behavior of glioblastoma cells.

Bitte loggen Sie sich ein, um Zugang zu diesem Inhalt zu erhalten

★ PREMIUM-INHALT
e.Med Interdisziplinär

Mit e.Med Interdisziplinär erhalten Sie Zugang zu allen CME-Fortbildungen und Fachzeitschriften auf SpringerMedizin.de. Zusätzlich können Sie eine Zeitschrift Ihrer Wahl in gedruckter Form beziehen – ohne Aufpreis.

Weitere Produktempfehlungen anzeigen
Literatur
Über diesen Artikel
  1. Das kostenlose Testabonnement läuft nach 14 Tagen automatisch und formlos aus. Dieses Abonnement kann nur einmal getestet werden.

  2. Das kostenlose Testabonnement läuft nach 14 Tagen automatisch und formlos aus. Dieses Abonnement kann nur einmal getestet werden.

Neu im Fachgebiet Pathologie

01.11.2018 | Schwerpunkt: Immunpathologie | Ausgabe 6/2018

Der prädiktive Wert der PD-L1-Diagnostik

22.10.2018 | Schwerpunkt: Immunpathologie | Ausgabe 6/2018

Digitale Pathologie in der Immunonkologie – Aktuelle Chancen und Herausforderungen

Überblick zur Analyse von Immunzellinfiltraten mittels Whole Slide Imaging

22.10.2018 | Schwerpunkt: Immunpathologie | Ausgabe 6/2018

Prognostische Bedeutung von Immunzellinfiltraten in der Tumorpathologie