1
|
Caretti V, Noll A, Woo P, Monje M, Cockle J, Bruning-Richardson A, Picton S, Levesley J, Ilett E, Short S, Melcher A, Lawler S, Garzia L, Dubuc A, Pitcher G, Northcott P, Mariampillai A, Mack S, Zayne K, Chan T, Skowron P, Wu X, Lionel A, Morrisy S, Hawkins C, Kongkham P, Rutka J, Huang A, Kenney A, Yang V, Salter M, Taylor M, Garzia L, Morrisy S, Skowron P, Jelveh S, Lindsay P, Largaespada D, Collier L, Dupuy A, Hill R, Taylor M, Hsieh TH, Wang HW, Cheng WC, Wong TT, Huang X, He Y, Dubuc A, Hashizume R, Zhang W, Stehbens S, Younger S, Barshow S, Zhu S, Wu X, Taylor M, Mueller S, Weiss W, James D, Shuman M, Jan YN, Jan L, Marigil M, Jauregi P, Idoate MA, Xipell E, Aldave G, Gonzalez-Huarriz M, Tejada-Solis S, Diez-Valle R, Montero-Carcaboso A, Mora J, Alonso MM, Taylor K, Mackay A, Truffaux N, Morozova O, Butterfield Y, Phillipe C, Vinci M, de Torres C, Cruz O, Mora J, Hargrave D, Monje M, Puget S, Yip S, Jones C, Grill J, Kaul A, Chen YH, Dahiya S, Emnett R, Gianino S, Gutmann D, Miwa T, Oi S, Nonaka Y, Sasaki H, Yoshida K, Lopez E, de Leon AP, Sepulveda C, Zarate L, Diego-Perez J, Pong W, Ding L, McLellan M, Hussain I, Emnett R, Gianino S, Higer S, Leonard J, Guha A, Mardis E, Gutmann D, Sarkar C, Pathak P, Jha P, Purkait S, Sharma V, Sharma MC, Suri V, Faruq M, Mukherjee M, Sivasankaran B, Velayutham RP, Fraschilla IR, Morris KJ, MacDonald TJ, Read TA, Sturm D, Northcott P, Jones D, Korshunov A, Picard D, Lichter P, Huang A, Pfister S, Kool M, Yao TW, Zhang J, Anna B, Brummer T, Gupta N, Nicolaides T, Chan KM, Fang D, Gan H, Hashizume R, Yu C, Schroeder M, Gupta N, Mueller S, James D, Jenkins R, Sarkaria J, Zhang Z. PEDIATRICS LABORATORY RESEARCH. Neuro Oncol 2013. [DOI: 10.1093/neuonc/not186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
2
|
Tchorz JS, Tome M, Cloëtta D, Sivasankaran B, Grzmil M, Huber RM, Rutz-Schatzmann F, Kirchhoff F, Schaeren-Wiemers N, Gassmann M, Hemmings BA, Merlo A, Bettler B. Constitutive Notch2 signaling in neural stem cells promotes tumorigenic features and astroglial lineage entry. Cell Death Dis 2012; 3:e325. [PMID: 22717580 PMCID: PMC3388237 DOI: 10.1038/cddis.2012.65] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Recent studies identified a highly tumorigenic subpopulation of glioma stem cells (GSCs) within malignant gliomas. GSCs are proposed to originate from transformed neural stem cells (NSCs). Several pathways active in NSCs, including the Notch pathway, were shown to promote proliferation and tumorigenesis in GSCs. Notch2 is highly expressed in glioblastoma multiforme (GBM), a highly malignant astrocytoma. It is therefore conceivable that increased Notch2 signaling in NSCs contributes to the formation of GBM. Here, we demonstrate that mice constitutively expressing the activated intracellular domain of Notch2 in NSCs display a hyperplasia of the neurogenic niche and reduced neuronal lineage entry. Neurospheres derived from these mice show increased proliferation, survival and resistance to apoptosis. Moreover, they preferentially differentiate into astrocytes, which are the characteristic cellular population of astrocytoma. Likewise, we show that Notch2 signaling increases proliferation and resistance to apoptosis in human GBM cell lines. Gene expression profiling of GBM patient tumor samples reveals a positive correlation of Notch2 transcripts with gene transcripts controlling anti-apoptotic processes, stemness and astrocyte fate, and a negative correlation with gene transcripts controlling proapoptotic processes and oligodendrocyte fate. Our data show that Notch2 signaling in NSCs produces features of GSCs and induces astrocytic lineage entry, consistent with a possible role in astrocytoma formation.
Collapse
Affiliation(s)
- J S Tchorz
- Department of Biomedicine, Institute of Physiology, Pharmazentrum, University of Basel, 4056 Basel, Switzerland
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|