Evaluation of an on-capillary copper complexation methodology for the investigation of in vitro metabolism of dynorphin A 1-17.

Evaluation of an on-capillary copper complexation methodology for the investigation of in vitro metabolism of dynorphin A 1-17.
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用于研究强啡肽 A 1-17 体外代谢的毛细管铜络合方法的评估。

DOI:
10.1002/jssc.201000271
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发表时间:
2010
影响因子:
3.1
通讯作者:
Lunte,SusanM
Lunte,SusanM
中科院分区:
工程技术3区
文献类型:
--
作者:
Kuhnline,CourtneyD;Lunte,SusanM

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参考文献

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强啡肽A1 -17是一种内源性神经肽,与包括阿尔茨海默病和帕金森病以及神经性疼痛在内的多种神经系统疾病有关。这种肽的代谢产物在体内可以表现出它们自己独特的作用,并且这些代谢产物中的一种可能负责神经毒性。在这篇文章中,使用毛细管电泳分离强啡肽A1 -17从其代谢产物的四个描述。研究了缓冲液添加剂,以消除肽吸附到毛细管壁,并提高密切相关的代谢物之间的分离度。采用毛细管上铜络合,并且与天然肽的分离相比,显示出提高了分离效率。然后将该方法应用于人血浆以及大鼠脑和大鼠脊髓切片中强啡肽的体外代谢。
Dynorphin A 1–17 is an endogenous neuropeptide implicated in a variety of neurological disorders including Alzheimer's and Parkinson's diseases and neuropathic pain. Metabolites of this peptide can exhibit their own unique effectsin vivo, and it is possible that one of these metabolites is responsible for the neurotoxicity. In this article, the use of CE for the separation of dynorphin A 1–17 from four of its metabolites is described. Buffer additives were investigated to eliminate peptide adsorption to the capillary wall and to improve resolution between closely related metabolites. On‐capillary copper complexation was employed and was shown to improve separation efficiency as compared with the separation of native peptides. The method was then applied toin vitrodynorphin metabolism in human plasma as well as rat brain and rat spinal cord slices.
DOI: --
发表时间: 2006
影响因子: 6.2
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期刊: SCIENCE
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