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Family of CNP neuropeptides: common morphology in various invertebrates

机译:CNP神经肽家族:各种无脊椎动物的常见形态

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Neuropeptides expressed in the command neurons for withdrawal behavior were originally detected in the the central nervous system (CNS) of the terrestrial snail Helix (command neurons peptides, CNP). The family of CNP-like neuropeptides bears a C-terminal signature sequence Tyr-Pro-Arg-X. Using antisera against two of them, we have studied the CNS of various invertebrates belonging to the phyla of mollusks, annelids and insects. The immunoreactive neurons were detected in all studied species. Stained neurons were either interneurons projecting along the CNS ganglia chain, or sensory neurons, or neurohormonal cells. Beyond common morphological features, the immunoreactive cells had another similarity: the level of CNP expression depended on the functional state of the animal. Thus, the homologous neuropeptides in evolutionary distant invertebrate species possess some common morphological and functional features.
机译:最初在陆生蜗牛螺旋的中枢神经系统(CNS)中检测到在戒断行为的命令神经元中表达的神经肽(命令神经元肽,CNP)。 CNP样神经肽家族具有C端签名序列Tyr-Pro-Arg-X。我们使用抗血清对其中的两种进行了研究,我们研究了各种软体动物的中枢神经系统,这些软体动物属于软体动物,无脊椎动物和昆虫的门。在所有研究物种中均检测到免疫反应性神经元。染色的神经元要么是沿着CNS神经节链突出的中间神经元,要么是感觉神经元或神经激素细胞。除了常见的形态学特征外,免疫反应细胞还具有另一个相似之处:CNP表达水平取决于动物的功能状态。因此,进化远距离无脊椎动物物种中的同源神经肽具有一些共同的形态和功能特征。

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