Abstract
It is well recognized that caspases are essential effector molecules for carrying out apoptosis in eukaryotic cells. The expression of rat brain caspase family proteins (caspase-2, -3, -6, -7, -8, -9, 10) in development and aging was assessed using immunochemical detection. All of these caspases were expressed in the rat brain. Immunoblot analysis of brain extracts from embryonic day 19 (E19) to postnatal 96-week-old rats indicated that cytosolic caspase-3, -7, -8, and -10 were highly expressed at E19, and decreased after birth. In contrast, cytosolic caspase-2, -6, and -9 were constitutively expressed from the early stages to 96 weeks of age. These results show that the expression of rat brain caspase family proteins is differentially regulated during the development and aging.
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