کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5738047 | 1615037 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The correlation between DNA methylation and transcriptional expression of human dopamine transporter in cell lines
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
علوم اعصاب (عمومی)
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چکیده انگلیسی
This study aims to investigate the relationship between DNA methylation and expression of human dopamine transporter (hDAT). We examined methylation status of hDAT in cells with various hDAT expression levels, including two dopaminergic neural cell lines (SK-N-AS and SH-SY-5Y) and one non-dopaminergic cell line (HEK293) by bisulfite sequencing PCR(BSP). The effects of DNA methyltransferase inhibitor 5-aza-dC or/and histone deacetylase inhibitor (HDACi, sodium butyrate, NaB) on the DNA methylation status and mRNA expression levels of hDAT were examined. The results revealed marked hypomethylation of the two promoter regions (â1214 to â856â¯bp and â48 to 439â¯bp, the first base of exon 1 was taken as +1 bp)of hDAT in SK-N-AS (4.7%â¯Â±â¯2.0â¯mC and 3.5%â¯Â±â¯1.0â¯mC, respectively) compared with SH-SY-5Y (88.0%â¯Â±â¯4.4%mC and 81.1%â¯Â±â¯8.8%mC) and HEK293 (90.7%â¯Â±â¯2.4â¯mC and 84.4%â¯Â±â¯8.6% mC) cell lines, indicating a cell-specific methylation regulation of hDAT. 5-aza-dC and NaB decreased hypermethylation,while increase hDAT expression in SH-SY-5Y cells and recovered hDAT mRNA expression in HEK293 cells. DNA methylation enabled the cell-specific differential expression of the hDAT gene. hDAT silencing was reversed by the introduction of DNA hypomethylation via 5-aza-dC or/and NaB.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Neuroscience Letters - Volume 662, 1 January 2018, Pages 91-97
Journal: Neuroscience Letters - Volume 662, 1 January 2018, Pages 91-97
نویسندگان
Desheng Zhai, Songji Li, Gaopan Dong, Dushuang Zhou, Yuxin Yang, Xin Wang, Ying Zhao, Yunlei Yang, Zhicheng Lin,