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Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-32740

Sutter, R; Shakhova, O; Bhagat, H; Behesti, H; Sutter, C; Penkar, S; Santuccione, A; Bernays, R L; Heppner, F L; Schüller, U; Grotzer, M; Moch, H; Schrami, P; Marino, S (2010). Cerebellar stem cells act as medulloblastoma-initiating cells in a mouse model and a neural stem cell signature characterizes a subset of human medulloblastomas. Oncogene, 29(12):1845-1856.

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Cells with stem cell properties have been isolated from various areas of the postnatal mammalian brain, most recently from the postnatal mouse cerebellum. We show here that inactivation of the tumor suppressor genes Rb and p53 in these endogenous neural stem cells induced deregulated proliferation and resistance to apoptosis in vitro. Moreover, injection of these cells into mice formed medulloblastomas. Medulloblastomas are the most common malignant brain tumors of childhood, and despite recent advances in treatment they are associated with high morbidity and mortality. They are highly heterogeneous tumors characterized by a diverse genetic make-up and expression profile as well as variable prognosis. Here, we describe a novel ontogenetic pathway of medulloblastoma that significantly contributes to understanding their heterogeneity. Experimental medulloblastomas originating from neural stem cells preferentially expressed stem cell markers Nestin, Sox2 and Sox9, which were not expressed in medulloblastomas originating from granule-cell-restricted progenitors. Furthermore, the expression of these markers identified a subset of human medulloblastomas associated with a poorer clinical outcome.


47 citations in Web of Science®
48 citations in Scopus®
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282 downloads since deposited on 18 Mar 2010
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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > University Children's Hospital Zurich > Medical Clinic
04 Faculty of Medicine > University Hospital Zurich > Institute of Surgical Pathology
04 Faculty of Medicine > Psychiatric University Hospital Zurich > Division of Psychiatric Research and Clinic for Psychogeriatric Medicine
04 Faculty of Medicine > University Hospital Zurich > Clinic for Neurosurgery
04 Faculty of Medicine > University Hospital Zurich > Institute of Neuropathology
Dewey Decimal Classification:570 Life sciences; biology
610 Medicine & health
Deposited On:18 Mar 2010 10:06
Last Modified:05 Apr 2016 14:02
Publisher:Nature Publishing Group
Publisher DOI:10.1038/onc.2009.472
PubMed ID:20062081

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