| Abnormal hypermethylation and clinicopathological significance of Axin gene in lung cancer. | |
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MedLine Citation:
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PMID: 23192643 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Axin is an important negative regulator of Wnt pathway. We have reported that reduced expression of Axin could be detected in lung cancer tissues, but the mechanism is not clear. By analyzing the genomic sequence, we note that Axin gene promoter is rich in CpGs. Little is known about the methylation status of Axin gene in lung cancer. So, nested MSP and RT-PCR were used to study the methylation status and mRNA expression of Axin gene in lung cancer tissues and cell lines. The results showed that hypermethylated Axin gene promoter and reduced mRNA expression level of Axin could be detected in lung cancer tissues but not in their paired autologous normal lung tissues (P < 0.01). The hypermethylated Axin gene promoter significantly correlated with the degree of differentiation (P = 0.03), lymph node metastasis (P = 0.048) and TNM classifications (P = 0.032). Demethylation reagent 5-aza-2-deoxycytidine significantly up-regulate Axin expression in BE1 cells (with hypermethylated Axin gene promoter) but not in H460 cells (with unmethylated Axin gene promoter). MTT (3(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) and transwell matrigel invasion assay showed that 5-aza-2-deoxycytidine treatment inhibited cell growth and invasion more significantly in BE1 cells than that in H460 cells. Our data indicate that hypermethylated Axin gene significantly correlates with the progression of lung cancer and might serve as a new target of clinical therapy for lung cancer patients in future. |
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Authors:
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Lian-He Yang; Hong-Tao Xu; Qing-Chang Li; Gui-Yang Jiang; Xiu-Peng Zhang; Huan-Yu Zhao; Ke Xu; En-Hua Wang |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-11-29 |
Journal Detail:
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Title: Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine Volume: - ISSN: 1423-0380 ISO Abbreviation: Tumour Biol. Publication Date: 2012 Nov |
Date Detail:
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Created Date: 2012-11-29 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8409922 Medline TA: Tumour Biol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Department of Pathology, the First Affiliated Hospital and College of Basic Medical Sciences, China Medical University, Shenyang, 110001, Liaoning, China. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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