Dedifferentiation of neurons and astrocytes by oncogenes can induce gliomas in mice.
Dedifferentiation of neurons and astrocytes by oncogenes can induce gliomas in mice.
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肿瘤基因对神经元和星形胶质细胞的去分化会在小鼠中诱导神经胶质瘤。
DOI:
10.1126/science.1226929
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发表时间:
2012-11-23
期刊:
影响因子:
--
通讯作者:
Verma IM
中科院分区:
文献类型:
--
作者:
Friedmann-Morvinski D;Bushong EA;Ke E;Soda Y;Marumoto T;Singer O;Ellisman MH;Verma IM
Glioblastoma multiforme (GBM) is the most common and aggressive malignant primary brain tumor in humans. Here, we show that gliomas can originate from differentiated cells in the central nervous system (CNS), including cortical neurons. Transduction by oncogenic lentiviral vectors of neural stem cells (NSCs), astrocytes, or even mature neurons in the brain of mice can give rise to malignant gliomas. All the tumors, irrespective of the site of injection (initiating population), share common features of high expression of stem or progenitor markers and low expression of differentiation markers. Microarray analysis revealed that tumors of astrocytic and neuronal origin match the mesenchymal GBM subtype. We propose that most differentiated cells in the CNS upon defined genetic alterations undergo dedifferentiation to generate a NSC or progenitor state to initiate and maintain the tumor progression, as well as to give rise to the heterogeneous populations observed in malignant gliomas.
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影响因子:
30.8
作者:
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通讯作者:
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