共 49 条
Genomic and epigenetic alterations deregulate microRNA expression in human epithelial ovarian cancer
被引:439
作者:
Zhang, Lin
[1
,3
]
Volinia, Stefano
[7
,8
,9
]
Bonome, Tomas
[10
]
Calin, George Adrian
[7
,8
,9
]
Greshock, Joel
[2
]
Yang, Nuo
[1
]
Liu, Chang-Gong
[7
,8
,9
]
Giannakakis, Antonis
[1
,11
]
Alexiou, Pangiotis
[12
]
Hasegawa, Kosei
[1
]
Johnstone, Cameron N.
[4
]
Megraw, Molly S.
[5
]
Adams, Sarah
[1
,3
]
Lassus, Heini
[13
]
Huang, Jia
[2
]
Kaur, Sippy
[13
]
Liang, Shun
[1
]
Sethupathy, Praveen
[5
]
Leminen, Arto
[13
]
Simossis, Victor A.
[12
]
Sandaltzopoulos, Raphael
[11
]
Naomoto, Yoshio
[14
]
Katsaros, Dionyssios
[15
]
Gimotty, Phyllis A.
[6
]
DeMichele, Angela
[4
]
Huang, Qihong
[16
]
Butzow, Ralf
[13
]
Rustgi, Anil K.
[4
]
Weber, Barbara L.
[2
]
Birrer, Michael J.
[10
]
Hatzigeorgiou, Artemis G.
[2
,5
,12
]
Croce, Carlo M.
Coukos, George
[1
,2
,3
]
机构:
[1] Univ Penn, Ctr Res Early Detect & Cure Ovarian Canc & Gyneco, Philadelphia, PA 19104 USA
[2] Univ Penn, Abramson Family Canc Res Inst, Philadelphia, PA 19104 USA
[3] Univ Penn, Dept Obstet, Philadelphia, PA 19104 USA
[4] Univ Penn, Dept Med, Philadelphia, PA 19104 USA
[5] Univ Penn, Dept Genet, Philadelphia, PA 19104 USA
[6] Univ Penn, Dept Biostat & Epidemiol, Philadelphia, PA 19104 USA
[7] Ohio State Univ, Dept Mol Virol, Columbus, OH 43210 USA
[8] Ohio State Univ, Dept Immunol, Columbus, OH 43210 USA
[9] Ohio State Univ, Dept Med Genet, Columbus, OH 43210 USA
[10] NCI, Cell & Canc Biol Branch, NIH, Bethesda, MD 20814 USA
[11] Democritus Univ Thrace, Lab Gene Express Modern Diag & Therapeut Methods, Alexandroupolis 68100, Greece
[12] Biomed Sci Res Ctr Alexander Fleming, Inst Mol Oncol, Varkiza 16672, Greece
[13] Univ Helsinki, Dept Obstet & Gynecol, FIN-00290 Helsinki, Finland
[14] Okayama Univ, Dept Surg Oncol, Okayama 7008530, Japan
[15] Univ Turin, Dept Obstet & Gynecol, I-10124 Turin, Italy
[16] Wistar Inst Anat & Biol, Philadelphia, PA 19104 USA
来源:
关键词:
Dlk1-Gtl2;
domain;
noncoding RNA;
D O I:
10.1073/pnas.0801615105
中图分类号:
O [数理科学和化学];
P [天文学、地球科学];
Q [生物科学];
N [自然科学总论];
学科分类号:
07 ;
0710 ;
09 ;
摘要:
MicroRNAs (miRNAs) are an abundant class of small noncoding RNAs that function as negative gene regulators. miRNA deregulation is involved in the initiation and progression of human cancer; however, the underlying mechanism and its contributions to genome-wide transcriptional changes in cancer are still largely unknown. We studied miRNA deregulation in human epithelia[ ovarian cancer by integrative genomic approach, including miRNA microarray (n = 106), array-based comparative genomic hybridization (n = 109), cDNA microarray (n = 76), and tissue array (n = 504). miRNA expression is markedly down-regulated in malignant transformation and tumor progression. Genomic copy number loss and epigenetic silencing, respectively, may account for the down-regulation of approximate to 15% and at least approximate to 36% of miRNAs in advanced ovarian tumors and miRNA down-regulation contributes to a genome-wide transcriptional deregulation. Last, eight miRNAs located in the chromosome 14 miRNA cluster (Dlk1-Gtl2 domain) were identified as potential tumor suppressor genes. Therefore, our results suggest that miRNAs may offer new biomarkers and therapeutic targets in epithelial ovarian cancer.
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页码:7004 / 7009
页数:6
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