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Neurotoxicity Research

, Volume 35, Issue 4, pp 931–944 | Cite as

Effect of Aluminum-Maltolate on the Content of Aβ Protein and the Expression of ApoER2, VLDLRs, and LRP1 in PC12-ApoE4 Cells

  • Ting Zhang
  • Shan Wang
  • Qiao NiuEmail author
Original Article

Abstract

To investigate the effect of aluminum-maltolate [Al(mal)3] on the expression of ApoER2, VLDLRs, and LRP1 in PC12-ApoE4 cells. The lentiviral vector carrying human ApoE4 gene was transfected into PC12 cells; after screening with puromycin, PC12 cells carrying ApoE4 gene (PC12-ApoE4 cells) were established. After 24-h treatment with Al(mal)3, the cell survival rate was measured by CCK-8 assay. The expression of Aβ40 and Aβ42 was detected by ELISA assay; the expression of the APP, ApoER2, LRP1, and VLDLRs genes was detected by RT-PCR, and Western blot assay was used to detect the expression of the APP, ApoER2, LRP1, and VLDLRs proteins. Factorial experiment design was performed to analyze interaction between cell type and Al dose. Al(mal)3 treatment induced dose-dependent decreases of survival rate in the two cell groups and dose-dependent increases of Aβ42 content(P < 0.05). The expressions of ApoER2, LRP1, and VLDLR proteins and their mRNA transcription decreased gradually with the increase of Al(mal)3 doses (P < 0.05), while the expression of APP protein and mRNA transcription gradually increased with the increase of Al(mal)3 doses (P < 0.05). As regard to the interaction of cell type and Al dose, the decrease of cell survival rate and the increase of the Aβ42 were both statistically significant (P < 0.05). And the decrease of ApoER2 and LRP1 proteins was both statistically significant too (P < 0.05). The effect of Al(mal)3 and ApoE4 gene on the survival rate and the increase of Aβ content in PC12 cells. That is to say, there is interaction between ApoE4 gene and aluminum on the Aβ content, especially the change of the Aβ42 content, which may be related to the down-regulation of the expression of ApoER2 and LRP1 proteins.

Keywords

Aluminum maltolate ApoE4 gene PC12 cells Aβ ApoER2 

Notes

Funding Information

This work was supported by NSFC No. 81430078.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Shanxi Provincial Key Laboratory of Environmental Hazards and Human Health, School of Public HealthShanxi Medical UniversityTaiyuanChina

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