Exp Mol Med.
2000 Dec;32(4):216-221.
Association of castration-dependent early induction of c-myc expression with a cell proliferation of the ventral prostate gland in rat
- Affiliations
-
- 1Department of Biochemistry, College of Medicine, Chungnam National University, Daejeon, Korea. kyulim@cnu.ac.kr
Abstract
- The protooncogene c-myc is known to be associated with both cell proliferation
and apoptosis. The possible cellular affects of castration on the ventral
prostate gland of rat as well as the relationship to a castration induced c-myc
expression were examined. Levels of c-myc mRNA in the ventral prostate gland
peaked at 6 h (early induction) and 48 h (late induction) after castration,
respectively. Castration-induced DNA fragmentation was not observed at an early
induction of c-myc mRNA. DNA fragmentation appeared to be
testosterone-dependent. On the other hand, cellular DNA synthesis measured by
[3H]thymidine uptake in the ventral prostate gland was increased to maximum at 6
h after castration. These results suggest that an early induction of c-myc mRNA
in ventral prostate gland after castration is closely associated with cell
proliferation of the gland.