Grunewald, T.G.* ; Diebold, I.* ; Esposito, I. ; Plehm, S.* ; Hauer, K.* ; Thiel, U.* ; Da Silva-Buttkus, P. ; Neff, F. ; Unland, R.* ; Müller-Tidow, C.* ; Zobywalski, C.* ; Lohrig, K.* ; Lewandrowski, U.* ; Sickmann, A.* ; da Costa, O.P.* ; Görlach, A.* ; Cossarizza, A.* ; Butt, E.* ; Richter, G.H.* ; Burdach, S.*
STEAP1 is associated with the invasive and oxidative stress phenotype of Ewing tumors.
Mol. Cancer Res. 10, 52-65 (2012)
Ewing tumors comprise the second most common type of bone-associated cancer in children and are characterized by oncogenic EWS/FLI1 fusion proteins and early metastasis. Compelling evidence suggests that elevated levels of intracellular oxidative stress contribute to enhanced aggressiveness of numerous cancers, possibly including Ewing tumors. Using comprehensive microarray analyses and RNA interference, we identified the six-transmembrane epithelial antigen of the prostate 1 (STEAP1)-a membrane-bound mesenchymal stem cell marker of unknown function-as a highly expressed protein in Ewing tumors compared with benign tissues and show its regulation by EWS/FLI1. In addition, we show that STEAP1 knockdown reduces Ewing tumor proliferation, anchorage-independent colony formation as well as invasion in vitro and decreases growth and metastasis of Ewing tumor xenografts in vivo. Moreover, transcriptome and proteome analyses as well as functional studies revealed that STEAP1 expression correlates with oxidative stress responses and elevated levels of reactive oxygen species that in turn are able to regulate redox-sensitive and proinvasive genes. In synopsis, our data suggest that STEAP1 is associated with the invasive behavior and oxidative stress phenotype of Ewing tumors and point to a hitherto unanticipated oncogenic function of STEAP1.
Impact Factor
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Cited By
Altmetric
Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Typ der Hochschulschrift
Herausgeber
Schlagwörter
6-transmembrane epithelial antigen; Influences zyxin loccalization; Reactive oxygen; Endoplasmic; C-reticulum; Hydrogen-peroxide; Familiy tumors; Cancer Cells; Expression; Profileration; Prostate
Keywords plus
Sprache
englisch
Veröffentlichungsjahr
2012
Prepublished im Jahr
HGF-Berichtsjahr
2012
ISSN (print) / ISBN
1541-7786
e-ISSN
1557-3125
ISBN
Bandtitel
Konferenztitel
Konferzenzdatum
Konferenzort
Konferenzband
Quellenangaben
Band: 10,
Heft: 1,
Seiten: 52-65
Artikelnummer: ,
Supplement: ,
Reihe
Verlag
American Association for Cancer Research (AACR)
Verlagsort
Tag d. mündl. Prüfung
0000-00-00
Betreuer
Gutachter
Prüfer
Topic
Hochschule
Hochschulort
Fakultät
Veröffentlichungsdatum
0000-00-00
Anmeldedatum
0000-00-00
Anmelder/Inhaber
weitere Inhaber
Anmeldeland
Priorität
Begutachtungsstatus
Peer reviewed
POF Topic(s)
30504 - Mechanisms of Genetic and Environmental Influences on Health and Disease
Forschungsfeld(er)
Enabling and Novel Technologies
PSP-Element(e)
G-500300-001
Förderungen
Copyright
Erfassungsdatum
2012-02-27