Document Detail


Hypermethylation of the CpG island spanning from exon II to intron III is associated with steroidogenic factor 1 expression in stromal cells of endometriosis.
MedLine Citation:
PMID:  21926385     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: Unravel the mechanism for differential SF-1 expression in endometrial and endometriotic stromal cells.
DESIGN: We identified a novel CpG island in the SF-1 gene, which spans from exon II to intron III. We evaluated the methylation status of this CpG island.
PATIENTS: Eutopic endometrium from disease-free participants (n = 8) and the walls of cystic endometriosis lesions of the ovaries (n = 8). None of the patients had received any preoperative hormonal therapy. Stromal cells were isolated from these 2 types of tissues.
RESULTS: SF-1 messenger RNA (mRNA) levels in endometriotic stromal cells were significantly higher than those in endometrial stromal cells. Bisulfite sequencing showed strikingly increased methylation in endometriotic cells compared with endometrial cells (P < .001). A strong correlation between mRNA levels and percentage methylation of the exon II/intron III are observed. Specifically, the Pearson correlation coefficient was .98 (P < .001) for this association.
CONCLUSIONS: We demonstrated that methylation of a coding exon/intron sequence in the SF-1 gene positively regulated its expression in endometriosis, whereas its hypomethylation in normal endometrium was associated with drastically lower SF-1 levels.
Authors:
Qing Xue; Ying Fang Zhou; Sai Nan Zhu; Serdar E Bulun
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't     Date:  2011-09-16
Journal Detail:
Title:  Reproductive sciences (Thousand Oaks, Calif.)     Volume:  18     ISSN:  1933-7205     ISO Abbreviation:  Reprod Sci     Publication Date:  2011 Nov 
Date Detail:
Created Date:  2011-10-27     Completed Date:  2012-02-08     Revised Date:  2013-04-01    
Medline Journal Info:
Nlm Unique ID:  101291249     Medline TA:  Reprod Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1080-4     Citation Subset:  IM    
Affiliation:
Department of Obstetrics and Gynecology, First Hospital of Beijing University, Beijing, People's Republic of China.
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MeSH Terms
Descriptor/Qualifier:
Adult
Cells, Cultured
CpG Islands / genetics*
DNA Methylation / genetics*
Endometriosis / metabolism*
Exons / genetics
Female
Gene Expression
Humans
Introns / genetics
RNA, Messenger / analysis
Real-Time Polymerase Chain Reaction
Steroidogenic Factor 1 / genetics*
Stromal Cells / metabolism*
Grant Support
ID/Acronym/Agency:
R37-HD38691/HD/NICHD NIH HHS
Chemical
Reg. No./Substance:
0/NR5A1 protein, human; 0/RNA, Messenger; 0/Steroidogenic Factor 1
Comments/Corrections

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