10 Adult Subventricular Zone and Olfactory Bulb Neurogenesis

10 Adult Subventricular Zone and Olfactory Bulb Neurogenesis
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10 成人室下区和嗅球神经发生

DOI:
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发表时间:
2008
期刊:
影响因子:
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通讯作者:
A. Álvarez
A. Álvarez
中科院分区:
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文献类型:
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作者:
D. Lim;Yin;A. Álvarez

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在成年哺乳动物的大脑中,新的神经元在一生中被添加到嗅球(OB)中。在啮齿动物中,OB神经发生的成体生发区是脑室下区(SVZ),这是沿脑侧脑室壁发现的一层细胞(参见Alvarez-Buylla和Garcia-Verdugo 2002)。在SVZ中出生的神经母细胞迁移了相对较长的距离进入OB,然后在那里它们径向扩散并分化为中间神经元。这些新的OB神经元中的大多数整合到功能电路中(Belluzzi等人。2003年;Carleton等人。约有一半长期存活(Petreanu和Alvarez-Buylla,2002年)。SVZ细胞的增殖是终生的(Kuhn等人。1996年;高曼等人。1997年;Molofsky等人。2006年),每天为小鼠OB产生数千个新神经元(Lois和Alvarez-Buylla 1994)。成人SVZ也是正常和病变大脑中少突胶质细胞的发源地(Nait-Oumesmar等人)。1999年;Picard-Riera等人。2002年;Menn et al.2006年;Parent等人。2006)。这种持续的神经发生和伴随的少突胶质形成的深刻水平证明了SVZ内存在自我更新的多潜能前体细胞-或神经干细胞(NSC)。SVZ-OB系统是研究神经发生和神经元替代的一个很有吸引力的模型,因为它包括NSC维持、祖细胞命运指定、迁移、分化和新生神经元存活/死亡的基本过程。成人SVZ-OB神经发生的持久质量和稳定的细胞结构可能使这些复杂的生物学过程在实验上比胚胎脑研究更容易处理。
In the adult mammalian brain, new neurons are added to the olfactory bulb (OB) throughout life. In rodents, the adult germinal region for OB neurogenesis is the subventricular zone (SVZ), a layer of cells found along the walls of the brain lateral ventricles (for review, see Alvarez-Buylla and Garcia-Verdugo 2002). Neuroblasts born in the SVZ migrate a relatively long distance into the OB where they then disperse radially and differentiate into interneurons. Most of these new OB neurons integrate into functional circuits (Belluzzi et al. 2003; Carleton et al. 2003), and about half survive long-term (Petreanu and Alvarez-Buylla 2002). SVZ cell proliferation is lifelong (Kuhn et al. 1996; Goldman et al. 1997; Molofsky et al. 2006), with thousands of new neurons generated daily for the mouse OB (Lois and Alvarez-Buylla 1994). The adult SVZ is also the birthplace of oligodendrocytes in both normal and diseased brain (Nait-Oumesmar et al. 1999; Picard-Riera et al. 2002; Menn et al. 2006; Parent et al. 2006). This profound level of continuous neurogenesis and concomitant oligodendrogliogenesis argues for the existence of a self-renewing multipotent precursor cell—or, neural stem cell (NSC)—within the SVZ. The SVZ-OB system is an attractive model in which to study neurogenesis and neuronal replacement as it includes the basic processes of NSC maintenance, progenitor cell-fate specification, migration, differentiation, and survival/death of newly born neurons. The enduring quality and stable cytoarchitecture of adult SVZ-OB neurogenesis may make these complex biological processes experimentally more tractable in comparison to studies of embryonic brain...
DOI: 10.1073/pnas.250471697
发表时间: 2000-12-05
影响因子: 11.1
作者:
Laywell, ED;Rakic, P;Steindler, DA
通讯作者: Steindler, DA
DOI: 10.1016/j.ceb.2006.09.008
发表时间: 2006-12-01
影响因子: 7.5
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DOI: 10.1073/pnas.96.13.7526
发表时间: 1999-06-22
影响因子: 11.1
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通讯作者: Alvarez-Buylla, A
DOI: 10.1073/pnas.96.20.11619
发表时间: 1999-09-28
影响因子: 11.1
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