Clinical and Experimental Medicine

, Volume 10, Issue 4, pp 237–243 | Cite as

The protective effect of trihexyphenidyl on the beta-amyloid peptide 25–35-induced cytotoxicity in PC12 cells

Original Article
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Abstract

In the development and progression of Alzheimer’s disease (AD), β-amyloid peptide (Aβ) that induced cytotoxicity containing apoptosis and excess production of reactive oxygen species (ROS) is considered as a causal role. The aim of present study is to investigate the protective effect of Trihexyphenidyl (THY) on Aβ25–35-induced cytotoxicity in cultured rat pheochromocytoma (PC12) cells. In this report, the cell survival was measured by MTT assay, the enzyme activity of superoxide dismutase (SOD) and glutathione peroxidase (GSH-PX), the contents of lipid peroxidation products malondialdehyde (MDA) and ROS in the cells were determined. Acridine orange (AO) was used to observe the morphological characteristic of apoptotic cells. Mitochondrial membrane potential in PC12 cells were monitored by fluorospectrophotometer combining with Rh123. As a cell permeable fluorescent probe, Fura-2/AM was employed to detect intracellular [Ca2+]. The results showed that after incubation with Aβ25–35 (10 μM) for 24 h, there were decreased changes in cell viability, SOD, and GSH-PX activity as well as mitochondrial membrane potential, in contrast, the levels of [Ca2+]i, ROS, and MDA were increased, THY significantly attenuated all the changes induced by Aβ25–35, indicating that THY exhibited protective effect against Aβ25–35-induced cytotoxicity, which may represent the cellular mechanisms of the action.

Keywords

Trihexyphenidyl PC12 cells Aβ25–35 
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Notes

Conflict of interest statement

The authors declare that they have no conflict of interest related to the publication of this manuscript.

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Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  1. 1.Key Laboratory of Natural Medicine and Immune EngineeringHenan UniversityKaifengChina

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