Age-related cognitive decline: can neural stem cells help us?

Age-related cognitive decline: can neural stem cells help us?
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DOI:
10.18632/aging.100446
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发表时间:
2012-03
期刊:
Aging
影响因子:
--
通讯作者:
Calegari F
Calegari F
中科院分区:
其他
文献类型:
--
作者:
Artegiani B;Calegari F

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一些研究表明,成年神经发生的增加对情感行为和认知表现(包括学习和记忆)有有益的影响。衰老对神经干细胞增殖有负面影响的观察结果促使几个实验室研究新的系统,以人为地增加衰老动物的神经发生,作为补偿与年龄相关的认知能力下降的手段。在这篇综述中,我们将讨论系统的,细胞的,和分子的变化引起的老化和影响神经干细胞增殖,其命运的变化,神经元的生存,并随后整合在神经元回路的水平上的神经原性生态位。特别注意将给予那些操纵,增加神经发生在老年人的大脑作为一个潜在的治疗途径。
Several studies suggest that an increase in adult neurogenesis has beneficial effects on emotional behavior and cognitive performance including learning and memory. The observation that aging has a negative effect on the proliferation of neural stem cells has prompted several laboratories to investigate new systems to artificially increase neurogenesis in senescent animals as a means to compensate for age-related cognitive decline. In this review we will discuss the systemic, cellular, and molecular changes induced by aging and affecting the neurogenic niche at the level of neural stem cell proliferation, their fate change, neuronal survival, and subsequent integration in the neuronal circuitry. Particular attention will be given to those manipulations that increase neurogenesis in the aged brain as a potential avenue towards therapy.
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