کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2147193 | 1548402 | 2008 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A novel variable number of tandem repeats (VNTR) polymorphism containing Sp1 binding elements in the promoter of XRCC5 is a risk factor for human bladder cancer
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کلمات کلیدی
DSBSDSNHEJVNTRXRCC5Electrophoretic mobility shift assay - آزمون تحرک تحرک الکتروفورزGenetic susceptibility - استعداد ژنتیکی یا آسیب پذیری ژنتیکی Variable number of tandem repeats - تعداد متغیر تکرارهای tandemsodium dodecyl sulfate - سدیم دودسیل سولفاتBladder cancer - سرطان مثانهEMSA یا electrophoretic mobility shift assay - سنجش تغییر تحرک الکتروفورتیکdouble-strand break - شکست دو ردیفnon-homologous end joining - عدم پیوستن انتهای غیر همولوگTranscription activity - فعالیت رونویسیpolymerase chain reaction - واکنش زنجیره ای پلیمرازPCR - واکنش زنجیرهٔ پلیمراز
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
تحقیقات سرطان
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: A novel variable number of tandem repeats (VNTR) polymorphism containing Sp1 binding elements in the promoter of XRCC5 is a risk factor for human bladder cancer A novel variable number of tandem repeats (VNTR) polymorphism containing Sp1 binding elements in the promoter of XRCC5 is a risk factor for human bladder cancer](/preview/png/2147193.png)
چکیده انگلیسی
X-ray repair cross-complementing 5 (XRCC5) is a gene involved in repair of DNA double-strand breaks. Abnormal expression of the XRCC5 protein is associated with genomic instability and an increased incidence of cancers. In our study, a polymorphism with a variable number of tandem repeats (21-bp repeat elements at position â201 to â160 relative to the initiation of transcription) in the promoter of XRCC5 was identified. As determined with gel-shift and super-shift assays, the binding affinity of the transcription factor Sp1 to the allele with two 21-bp repeats was greater than that for the allele with one 21-bp repeat. As established with a reporter assay, plasmids containing zero or one repeat element had higher transcriptional activities than plasmids containing two repeat elements. Furthermore, fewer tandem repeats in the promoter of XRCC5 was associated with enhanced levels of the XRCC5 protein in bladder cancer patients. Although, in a case-control study, the different genotypes were not associated with the risk of bladder cancer, individuals not carrying the two tandem repeats allele had an increased risk of bladder cancer compared with those carrying the allele with two repeats. These results indicated that, at least in a population in southeastern China, this polymorphism in the promoter of XRCC5 could regulate the expression of XRCC5 and thereby contribute to susceptibility to bladder cancer.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mutation Research/Fundamental and Molecular Mechanisms of Mutagenesis - Volume 638, Issues 1â2, 1 February 2008, Pages 26-36
Journal: Mutation Research/Fundamental and Molecular Mechanisms of Mutagenesis - Volume 638, Issues 1â2, 1 February 2008, Pages 26-36
نویسندگان
Shouyu Wang, Meilin Wang, Shiwei Yin, Guangbo Fu, Chunping Li, Rui Chen, Aiping Li, Jianwei Zhou, Zhengdong Zhang, Qizhan Liu,