Association of castration-dependent early induction of c-myc expression with a cell proliferation of the ventral prostate gland in rat.
- Author:
Kyu LIM
1
;
Chung PARK
;
Young Kyoon KIM
;
Kyung Ah YUN
;
Mee Young SON
;
Young Chul LEE
;
Jong Il PARK
;
Joong Hwa LEE
;
Chong Koo SUL
;
Choong Sik LEE
;
Seung Kiel PARK
;
Byung Doo HWANG
Author Information
1. Department of Biochemistry, College of Medicine, Chungnam National University, Daejeon, Korea. kyulim@cnu.ac.kr
- Publication Type:Original Article ; Research Support, Non-U.S. Gov't
- Keywords:
apoptosis;
castration;
c-myc;
prostate
- MeSH:
Animal;
Apoptosis;
Cell Division;
DNA Fragmentation;
Male;
*Orchiectomy;
Prostate/*cytology;
Proto-Oncogene Proteins c-myc/biosynthesis/*genetics;
RNA, Messenger;
Rats;
Rats, Sprague-Dawley
- From:Experimental & Molecular Medicine
2000;32(4):216-221
- CountryRepublic of Korea
- Language:English
-
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.
