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Effect of tetrandrine on proto-oncogene c-fos expression in rat cerebrum
1Department of Pharmacology, Chinese Academy of Medical Sciences, Beijing, China.
Aim:
To detect the effect of tetrandrine (Tet) on c-fos gene expression in cerebrum induced by lindane, a neurotoxicant which activates Ca2+ channels.
Methods:
Northern and dot blotting, dual wavelength thin layer chromatography scanner, were used in this study.
Results:
Lindane 30 mg.kg-1 given by intragastric gavage (i.g.) increased the expression of c-fos gene to 146 mm2 in rat cerebrum 1 h after treatment. Tet 1, 2, and 4 mg.kg-1 given by i.g. 30 min prior to lindane reduced c-fos gene expression in a concentration-dependent manner. Expressed genes reached only 86, 40, and 39 mm2, respectively.
Conclusion:
Tet inhibited c-fos gene expression in rat cerebrum induced by Ca2+ agonist-lindane.