Increased expression of cyclin G1 in leiomyoma compared with normal myometrium

Authors
Won-Ki BaekDaegun KimNeoncheol JungYong-Weon YiJin Man KimSoon-Do ChaInsoo BaeChi-Heum Cho
Department
Dept. of Microbiology (미생물학); Dept. of Obstetrics & Gynecology (산부인과학)
Issue Date
2003
Citation
American Journal of Obstetrics and Gynecology, Vol.188(3) : 634-639, 2003
ISSN
0002-9378
Abstract
OBJECTIVE: The purpose of this study was to detect the expression of cyclin G1 in leiomyoma and to investigate the alteration of its expression compared with normal myometrial tissue that was obtained from the same patient. STUDY DESIGN: With the use of Northern blot analysis, Western blot analysis, and immunohistochemistry, we analyzed the expression of cyclin G1 in 24 patients who underwent hysterectomies. RESULTS: We found that messenger RNA levels of cyclin G1 were elevated in human leiomyomas compared with their adjacent normal myometrial tissues. Consistent with elevated messenger RNA levels, high levels of cyclin G1 protein expression were detected by immunoblot analysis in all leiomyoma samples. Immunohistochemistry revealed that cyclin G1 is located mainly in the nucleus in both normal myometrium and leiomyoma. However, higher levels of cyclin G1 were apparent in tumor regions compared with adjacent normal myometrial regions. In addition, we found the expression levels of other cyclins (A and E) and CDK2 were elevated in leiomyomas compared with normal myometrium. Because cyclin G1 is a transcriptional target of the p53 tumor suppressor, we examined the p53 status of all eight leiomyoma samples and found no p53 mutations. CONCLUSION: These results suggest that cyclin G1 is frequently overexpressed in uterine leiomyoma in a p53-independent manner and that this abnormality could be attributed to the severe proliferation of human uterine leiomyomas. (Am J Obstet Gynecol 2003;188:634-9.) Key words: Cyclin G1, uterine leiomyoma
URI
http://kumel.medlib.dsmc.or.kr/handle/2015.oak/34907
Appears in Collections:
1. Journal Papers (연구논문) > 1. School of Medicine (의과대학) > Dept. of Microbiology (미생물학)
1. Journal Papers (연구논문) > 1. School of Medicine (의과대학) > Dept. of Obstetrics & Gynecology (산부인과학)
Keimyung Author(s)
백원기; 차순도; 조치흠
Full Text
https://linkinghub.elsevier.com/retrieve/pii/S0002937802714701
File in this Item
 사서에게 요청하기
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE