A TYPE OF BASKET CELL IN SUPERFICIAL LAYERS OF THE CAT VISUAL-CORTEX - A GOLGI-ELECTRON MICROSCOPE STUDY
A TYPE OF BASKET CELL IN SUPERFICIAL LAYERS OF THE CAT VISUAL-CORTEX - A GOLGI-ELECTRON MICROSCOPE STUDY
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DOI：
10.1016/0006-8993(82)90898-8
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发表时间：
1982-01-01
期刊：
影响因子：
2.9
通讯作者：
FAIREN, A
中科院分区：
文献类型：
--
作者：
DEFELIPE, J;FAIREN, A
脑皮层篮状细胞的轴突突被认为是连接锥体细胞细胞体的突触前终末的来源。鉴于皮质篮状细胞的概念仅基于间接证据，使用高尔基- em技术重新研究这个问题被认为是值得的。这种方法允许将突触前终末追溯到它们的亲本细胞体，从而允许对篮细胞（即优先产生轴体细胞突触的细胞）进行积极鉴定。描述了猫视觉皮层第II-III层的一种中间神经元。它的轴突末端在锥体和非锥体细胞的细胞体和近端树突上形成多个对称型的突触接触。根据这种传出突触模式，这个中间神经元被认为是一个篮细胞。讨论了这种神经元间类型与先前高尔基研究中描述的其他假定的篮细胞的可能对应关系。此外，描述了一种简单的半薄切片重切方法，用于在EM中识别单个高尔基浸染轴突扣。
The axonal arborizations of the basket cells in the cerebral neocortex were considered as the source of the presynaptic terminals contacting the cell bodies of pyramidal cells. Given that the concept of the cortical basket cell is based on indirect evidence only, it was deemed worthwhile to re-investigate this problem using the Golgi-EM technique. This approach permits tracing of presynaptic terminals back to their parent cell body, allowing for a positive identification of basket cells, i.e., cells which produce axosomatic synapses by preference. A type of interneuron in layer II-III of the cat visual cortex is described. Its axon terminals form multiple synaptic contacts, of the symmetrical type, on cell bodies and proximal dendrites of pyramidal and non-pyramidal cells. On the basis of this efferent synaptic pattern, this interneuron is considered to be a basket cell. The possible correspondence of this interneuronal type with other putative basket cells described in previous Golgi studies is discussed. In addition, a simple re-sectioning method for semithin sections is described, which was used to identify individual Golgi-impregnated axonal boutons in EM.