Suge Wu, Bin Liu, Zuoqing Yuan, Xiufang Zhang, Hong Liu, Qiuxiang Pang, Bosheng Zhao
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引用次数: 3
Abstract
Puromycin-sensitive aminopeptidase (PSA) belongs to the M1 zinc metallopeptidase family. PSA is the most abundant aminopeptidase in the brain and plays a role in the metabolism of neuropeptides including those involved in neurodegeneration. A cDNA DjPsa was identified from the planarian Dugesia japonica cDNA library. It contains a 639-bp open reading frame corresponding to a deduced protein of 212 amino acids. Whole mount in situ hybridization revealed that DjPsa is expressed in the brain and ventral nerve cords of intact and regenerating animals and demonstrates a tissue and stage-specific expression pattern of DjPsa in developing embryos and larvae. Knocking down DjPsa gene expression with RNA interference during planarian regeneration inhibits the brain reformation completely. The results suggest that DjPsa is required for planarian brain regeneration.
期刊介绍：
Invertebrate Neurosciences publishes peer-reviewed original articles, reviews and technical reports describing recent advances in the field of invertebrate neuroscience. The journal reports on research that exploits the simplicity and experimental tractability of the invertebrate preparations to underpin fundamental advances in neuroscience. Articles published in Invertebrate Neurosciences serve to highlight properties of signalling in the invertebrate nervous system that may be exploited in the field of antiparisitics, molluscicides and insecticides. Aspects of particular interest include:
Functional analysis of the invertebrate nervous system;
Molecular neuropharmacology and toxicology;
Neurogenetics and genomics;
Functional anatomy;
Neurodevelopment;
Neuronal networks;
Molecular and cellular mechanisms of behavior and behavioural plasticity.
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