Fatty acid synthase as a novel target for meningioma therapy

Daniela Haase, Stefan Schmidl, Christian Ewald, Rolf Kalff, Christian Huebner, Raimund Firsching, Gerburg Keilhoff, Matthias Evert, Werner Paulus, David H. Gutmann, Anita Lal, Christian Mawrin

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

High levels of fatty acid synthase (FAS) expression have been reported in hormone receptor-positive tumors, including prostate, breast, and ovarian cancers, and its inhibition reduces tumor growth in vitro and in vivo. Similar to other hormone receptor-positive tumor types, meningiomas are progesterone receptor- and estrogen receptor-immunoreactive brain tumors. To define the role of FAS in human meningioma growth control, we first analyzed the FAS expression using a tissue microarray containing 38 meningiomas and showed increased FAS expression in 70% of atypical WHO grade II and anaplastic WHO grade III meningiomas compared with 10% of benign WHO grade I tumors. We next confirmed this finding by real-time PCR and Western blotting. Second, we demonstrated that treatment with the FAS inhibitor, cerulenin (Cer), significantly decreased meningioma cell survival in vitro. Third, we showed that Cer treatment reduced FAS expression by modulating Akt phosphorylation (activation). Fourth, we demonstrated that Cer treatment of mice bearing meningioma xenografts resulted in significantly reduced tumor volumes associated with increased meningioma cell death. Collectively, our data suggest that the increased FAS expression in human meningiomas represents a novel therapeutic target for the treatment of unresectable or malignant meningioma.

Original languageEnglish
Pages (from-to)844-854
Number of pages11
JournalNeuro-oncology
Volume12
Issue number8
DOIs
StatePublished - Aug 2010

Keywords

  • Fatty acid synthase
  • Meningioma
  • Therapy

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