JOURNAL OF SHANDONG UNIVERSITY (HEALTH SCIENCES) ›› 2009, Vol. 47 ›› Issue (10): 23-27.
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ZHANG Jing, DUAN Shan, YANG Lingling, CUI Xing
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Abstract:
To construct the recombinant adenovirus vector carrying the human gene neprilysin (NEP), obtain a high titer virus by packing and increasing, and explore the reducing of Aβ′s deposition to the damaged cells. MethodsA shuttle plasmid pAdeasyl was constructed in bacteria and pAdNEP was generated. The replicationdeficient adenovirus was packed and propagated in the cell 293. Then the person′s nerve metrocyte lump cell SKNSH cells were infected and NEP expression was examined by RTPCR and Western blot. The endogenous damaged SKNSH cells were infected and the degeneration to Aβ was examined. ResultsAdNEP and control adenovirus AdGFP were successfully constructed. The recombinant adenovirus can efficiently infect the person′s nerve metrocyte lump cell SKNSH cells and can be used to examine high expression of NEP. The result of Elisa showed that high expression of NEP can reduce the extracellular deposition of Aβ. ConclusionHomologous recombination in bacteria is a simple and convenient strategy to generate adenovirus expressing exogenous genes. The nerve cells infected by ADNEP may reduce the deposition of Aβ through high expression of NEP.
Key words: Endopeptidases; Adenoviruses, human; Amyloid betaprotein; Alzheimer disease
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