Mechanism of allyl chloride-induced cytoskeletal injury to nerve cells
- Author:
Keqin XIE
1
;
Keren SUN
;
Shujun GAO
;
Lei ZHANG
;
Min ZHANG
Author Information
1. 山东医科大学
- From:
Chinese Medical Journal
1998;(6):556-559
- CountryChina
- Language:Chinese
-
Abstract:
Objective To dissect the molecular mechanism of toxic neuropathy induced by allyl chloride (AC).Methods Fluorescence molecular probe (Fura-2/AM), electron probe X-ray microprobe analysis (EPMA) and biochemical methods were used to determine the concentrations of cytosolic free Ca2+, the contents of intracellular Ca2+ percentage, Ca2+-free calmodulin(CaM), the activity of Ca2+/CaM-dependent protein kinase Ⅱ (Ca2+/CaM-PK Ⅱ), and cytoskeletal protein synthesis in chicken embryo brain cells induced by AC. Results The contents of Ca2+ percentage, the concentrations of cytosolic free Ca2+, and the activities of Ca2+/CaM-PK Ⅱ in the cells were increased significantly as AC was added (P<0.01). However, the content of Ca2+-free CaM and the synthesis of cytoskeletal proteins were markedly decreased (P<0.01).Conclusion The results suggest that one of the mechanism of AC-induced cytoskeletal injury in vitro might be related to the elevation of intracellular Ca2+, activated CaM and Ca2+/CaM-PK Ⅱ.
