Promoter Methylation status of HIN-1 associated with outcomes of ovarian clear cell adenocarcinoma
<p>Abstract</p> <p>Background</p> <p>This study is to analyze promoter methylation of various tumor suppressor genes in different types of ovarian carcinoma and to identify potential therapeutic targets of ovarian clear cell adenocarcinoma (OCCA).</p> <p>Mat...
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doaj-4879115ece0c4af88c4ca3768268a4762020-11-25T00:42:04ZengBMCMolecular Cancer1476-45982012-08-011115310.1186/1476-4598-11-53Promoter Methylation status of HIN-1 associated with outcomes of ovarian clear cell adenocarcinomaHo Chih-MingHuang Chi-JungHuang Chia-YenWu Yih-YiingChang Shwu-FenCheng Wen-Fang<p>Abstract</p> <p>Background</p> <p>This study is to analyze promoter methylation of various tumor suppressor genes in different types of ovarian carcinoma and to identify potential therapeutic targets of ovarian clear cell adenocarcinoma (OCCA).</p> <p>Materials and methods</p> <p>The promoter methylation statuses of 40 genes in primary ovarian carcinomas including 47 clear- and 63 non-clear-cell type tissues, 6 OCCA cell lines, 29 benign ovarian endometriotic cysts, and 31 normal controls were analyzed by methylation-specific multiplex ligation-dependent probe amplification (MS-MLPA). The MS-MLPA results were correlated with clinicopathological features and outcomes of 47 OCCA patients. Functions of the target genes were further explored by Western Blot Analysis, apoptosis assay, and caspase-3/7 activity analysis.</p> <p>Results</p> <p>Frequencies of methylated RASSF1A, CDH13, CACNA1A, HIN-1, and sFRP5 genes in OCCA tissues were significantly higher than those in non-OCCA cancerous tissues and benign endometriotic cysts<b>.</b> The expected OS for patients with methylated promoters of HIN-1 was significantly worse than those for patients without methylated HIN-1 (30% vs. 62%, <it>p</it> = 0.002). The HIN-1 gene was over-expressed in ES2 cells, a significant reduction in cell growth and induction of apoptosis, and increasing paclitaxel sensitivity by reducing phosphorylation of Akt were observed.</p> <p>Conclusions</p> <p>Methylation of HIN-1 promoter is a novel epigenetic biomarker associated with poor outcomes in OCCA patients. Ectopic expression of the HIN-1 gene increased paclitaxel sensitivity which is partly through Akt pathway.</p> http://www.molecular-cancer.com/content/11/1/53Ovarian clear cell adenocarcinomaMethylation-specific multiplex ligation-dependent probe amplificationHIN-1CACNA1A |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ho Chih-Ming Huang Chi-Jung Huang Chia-Yen Wu Yih-Yiing Chang Shwu-Fen Cheng Wen-Fang |
spellingShingle |
Ho Chih-Ming Huang Chi-Jung Huang Chia-Yen Wu Yih-Yiing Chang Shwu-Fen Cheng Wen-Fang Promoter Methylation status of HIN-1 associated with outcomes of ovarian clear cell adenocarcinoma Molecular Cancer Ovarian clear cell adenocarcinoma Methylation-specific multiplex ligation-dependent probe amplification HIN-1 CACNA1A |
author_facet |
Ho Chih-Ming Huang Chi-Jung Huang Chia-Yen Wu Yih-Yiing Chang Shwu-Fen Cheng Wen-Fang |
author_sort |
Ho Chih-Ming |
title |
Promoter Methylation status of HIN-1 associated with outcomes of ovarian clear cell adenocarcinoma |
title_short |
Promoter Methylation status of HIN-1 associated with outcomes of ovarian clear cell adenocarcinoma |
title_full |
Promoter Methylation status of HIN-1 associated with outcomes of ovarian clear cell adenocarcinoma |
title_fullStr |
Promoter Methylation status of HIN-1 associated with outcomes of ovarian clear cell adenocarcinoma |
title_full_unstemmed |
Promoter Methylation status of HIN-1 associated with outcomes of ovarian clear cell adenocarcinoma |
title_sort |
promoter methylation status of hin-1 associated with outcomes of ovarian clear cell adenocarcinoma |
publisher |
BMC |
series |
Molecular Cancer |
issn |
1476-4598 |
publishDate |
2012-08-01 |
description |
<p>Abstract</p> <p>Background</p> <p>This study is to analyze promoter methylation of various tumor suppressor genes in different types of ovarian carcinoma and to identify potential therapeutic targets of ovarian clear cell adenocarcinoma (OCCA).</p> <p>Materials and methods</p> <p>The promoter methylation statuses of 40 genes in primary ovarian carcinomas including 47 clear- and 63 non-clear-cell type tissues, 6 OCCA cell lines, 29 benign ovarian endometriotic cysts, and 31 normal controls were analyzed by methylation-specific multiplex ligation-dependent probe amplification (MS-MLPA). The MS-MLPA results were correlated with clinicopathological features and outcomes of 47 OCCA patients. Functions of the target genes were further explored by Western Blot Analysis, apoptosis assay, and caspase-3/7 activity analysis.</p> <p>Results</p> <p>Frequencies of methylated RASSF1A, CDH13, CACNA1A, HIN-1, and sFRP5 genes in OCCA tissues were significantly higher than those in non-OCCA cancerous tissues and benign endometriotic cysts<b>.</b> The expected OS for patients with methylated promoters of HIN-1 was significantly worse than those for patients without methylated HIN-1 (30% vs. 62%, <it>p</it> = 0.002). The HIN-1 gene was over-expressed in ES2 cells, a significant reduction in cell growth and induction of apoptosis, and increasing paclitaxel sensitivity by reducing phosphorylation of Akt were observed.</p> <p>Conclusions</p> <p>Methylation of HIN-1 promoter is a novel epigenetic biomarker associated with poor outcomes in OCCA patients. Ectopic expression of the HIN-1 gene increased paclitaxel sensitivity which is partly through Akt pathway.</p> |
topic |
Ovarian clear cell adenocarcinoma Methylation-specific multiplex ligation-dependent probe amplification HIN-1 CACNA1A |
url |
http://www.molecular-cancer.com/content/11/1/53 |
work_keys_str_mv |
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1725284053697953792 |