کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
3299468 | 1209929 | 2006 | 18 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Differential and Epigenetic Gene Expression Profiling Identifies Frequent Disruption of the RELN Pathway in Pancreatic Cancers
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کلمات کلیدی
TSACOBRART-PCRHDACIntraductal papillary mucinous neoplasm of the pancreasPKBSAHAApoER2IPMNMSPVPA5-Aza-2′-deoxycytidine - 5-Aza-2'-deoxycytidineSmall interfering RNA - RNA تداخل کوچکsiRNA - siRNAVLDLR - VLDLSuberoylanilide hydroxamic acid - اسید سدئروانیلید هیدروکسامcombined bisulfite restriction analysis - تجزیه و تحلیل محدود بیسولفیتTrichostatin A - تریکوستاتین Ahistone deacetylase - هیستون داستیلازValproic acid - والپروات و والپروات سدیم یا والپروئیک اسیدmethylation-specific polymerase chain reaction - واکنش زنجیره ای پلیمراز متیلاسیون خاصreverse-transcription polymerase chain reaction - واکنش زنجیره پلیمراز معکوس رونویسیprotein kinase B - پروتئین کیناز BApolipoprotein E receptor 2 - گیرنده آپولیپوپروتئین E 2very-low-density lipoprotein receptor - گیرنده لیپوپروتئین بسیار کم تراکم
موضوعات مرتبط
علوم پزشکی و سلامت
پزشکی و دندانپزشکی
بیماریهای گوارشی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Background & Aims: Recently described genome-wide approaches robustly detect many candidate genes that are regulated by DNA methylation, but many of these genes do not represent important targets for functional inactivation. Here we used a microarray-based strategy to identify biologically relevant genes associated with epigenetic silencing in pancreatic cancer. Methods: We compared information from differential gene expression analysis with the transcriptional responses to epigenetic modifiers. Results: Using this approach, we identified 7 novel targets for aberrant methylation in pancreatic cancer. One of the genes identified, RELN (Reelin), a key regulator of neuronal migration, is frequently silenced in pancreatic cancers, as are several of its downstream mediators. Importantly, small interfering RNA-mediated knockdown of RELN in pancreatic cancer cells that retain RELN expression resulted in greatly enhanced cell motility, invasiveness, and colony-forming ability. Increased cell motility was also induced by knockdown of downstream components of the RELN pathway, including ApoER2, VLDLR, and DAB1. Treatment of pancreatic cancer cells with histone deacetylase inhibitors, valproic acid and suberoylanilide hydroxamic acid, restored the expression of RELN and DAB1 and markedly inhibited their migration. Conclusions: The high prevalence of the silencing of RELN pathway components and its reversal by histone deacetylase inhibitors suggest the importance of this pathway as a diagnostic and therapeutic target for pancreatic cancer.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Gastroenterology - Volume 130, Issue 2, February 2006, Pages 548-565
Journal: Gastroenterology - Volume 130, Issue 2, February 2006, Pages 548-565
نویسندگان
Norihiro Sato, Noriyoshi Fukushima, Rubens Chang, Hiroyuki Matsubayashi, Michael Goggins,