Annals of Indian Academy of Neurology
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Year : 2013  |  Volume : 16  |  Issue : 4  |  Page : 603-608

The neuroprotective effect of immune serum of adeno-associated virus vaccine containing Aβ1-15 gene on amyloid toxicity

1 Department of Neurology, Yangpu Central Hospital, Shanghai, China
2 State Key Laboratory of Medical Neurobiology, Department of Neurobiology, Shanghai Medical College, Fudan University, Shanghai, China
3 Cancer Stem Cell Institute, Research Center for Translational Medicine, East Hospital, Tongji University School of Medicine, Shanghai, China

Correspondence Address:
Ling-Yun Liu
Department of Neurology, Yangpu Central Hospital, 450 Teng-Yue Road, Shanghai, 200090
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Source of Support: This research was suppored by foundation of Shanghai municipal health bureau (2008/048), Conflict of Interest: None

DOI: 10.4103/0972-2327.120489

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Objective: The aim of this study was to explore the effect of adeno-associated virus (AAV) serotype 2 vector vaccine containing amyloid-β peptide (Aβ) 1-15 gene fragment (AAV-Aβ15) immunized mice sera on counteracting Aβ1-42 peptide toxicity towards a primary culture cortical neurons. Materials and Methods: BALB/c mice were vaccinated via the intramuscular immunization route with AAV-Aβ15. The anti-Aβ antibody titer of immunized mice sera was quantified by sandwich Enzyme-Linked ImmunoSorbent Assay. The toxicity of Aβ1-42 peptide on neurons was assessed by morphology with an inverse microscopy and cell viability was determined by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay. Results: AAV-Aβ15 could induce an Aβ-specific immunoglobulin G (IgG) humoral immune response in /c mice the anti-Aβ antibodies were detectable at 1 month after immunization, significantly increased at 2 and 4 months after immunization, and the immunized sera could attenuate cytotoxicity of Aβ1-42 peptide on primary culture cortical neurons. Conclusions: The immune serum of AAV-Aβ15 could play a neuroprotective effect against Aβ1-42 peptide toxicity, which would be beneficial for Alzheimer's disease patients.

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