Journal ArticleDOI
A MicroRNA Signature Associated with Prognosis and Progression in Chronic Lymphocytic Leukemia
George A. Calin,Manuela Ferracin,Manuela Ferracin,Amelia Cimmino,Gianpiero Di Leva,Masayoshi Shimizu,Sylwia E. Wojcik,Marilena V. Iorio,Rosa Visone,Nurettin Ilfer Sever,Muller Fabbri,Muller Fabbri,Rodolfo Iuliano,Tiziana Palumbo,Flavia Pichiorri,Claudia Roldo,Ramiro Garzon,Cinzia Sevignani,Laura Z. Rassenti,Hansjuerg Alder,Stefano Volinia,Chang Gong Liu,Thomas J. Kipps,Massimo Negrini,Carlo M. Croce +24 more
TLDR
A unique microRNA signature is associated with prognostic factors and disease progression in CLL, and a germ-line mutation in the miR-16-1-miR-15a primary precursor caused low levels of microRNA expression in vitro and in vivo and was associated with deletion of the normal allele.Abstract:
Background MicroRNA expression profiles can be used to distinguish normal B cells from malignant B cells in patients with chronic lymphocytic leukemia (CLL). We investigated whether microRNA profiles are associated with known prognostic factors in CLL. Methods We evaluated the microRNA expression profiles of 94 samples of CLL cells for which the level of expression of 70-kD zeta-associated protein (ZAP-70), the mutational status of the rearranged immunoglobulin heavy-chain variable-region (IgVH ) gene, and the time from diagnosis to initial treatment were known. We also investigated the genomic sequence of 42 microRNA genes to identify abnormalities. Results A unique microRNA expression signature composed of 13 genes (of 190 analyzed) differentiated cases of CLL with low levels of ZAP-70 expression from those with high levels and cases with unmutated IgVH from those with mutated IgVH . The same microRNA signature was also associated with the presence or absence of disease progression. We also identified a...read more
Citations
More filters
Journal Article
Oncomirs : microRNAs with a role in cancer
TL;DR: I MicroRNAs (miRNAs) are an abundant class of small non-protein-coding RNAs that function as negative gene regulators as discussed by the authors, and have been shown to repress the expression of important cancer-related genes and might prove useful in the diagnosis and treatment of cancer.
Journal ArticleDOI
A microRNA expression signature of human solid tumors defines cancer gene targets
Stefano Volinia,George A. Calin,Chang Gong Liu,Stefan Ambs,Amelia Cimmino,Fabio Petrocca,Rosa Visone,Marilena V. Iorio,Claudia Roldo,Manuela Ferracin,Robyn L. Prueitt,Nozumu Yanaihara,Giovanni Lanza,Aldo Scarpa,Andrea Vecchione,Massimo Negrini,Curtis C. Harris,Carlo M. Croce +17 more
TL;DR: The results indicate that miRNAs are extensively involved in cancer pathogenesis of solid tumors and support their function as either dominant or recessive cancer genes.
Journal ArticleDOI
Oncomirs — microRNAs with a role in cancer
TL;DR: Evidence has shown that miRNA mutations or mis-expression correlate with various human cancers and indicates that miRNAs can function as tumour suppressors and oncogenes.
Journal ArticleDOI
Regulation of microRNA biogenesis
Minju Ha,V. Narry Kim +1 more
TL;DR: Small non-coding RNAs that function as guide molecules in RNA silencing are involved in nearly all developmental and pathological processes in animals and their dysregulation is associated with many human diseases.
Journal ArticleDOI
NF-κB-dependent induction of microRNA miR-146, an inhibitor targeted to signaling proteins of innate immune responses
TL;DR: A role is proposed for miR-146 in control of Toll-like receptor and cytokine signaling through a negative feedback regulation loop involving down-regulation of IL-1 receptor-associated kinase 1 and TNF receptor- associated factor 6 protein levels.
References
More filters
Journal ArticleDOI
MicroRNAs: Genomics, Biogenesis, Mechanism, and Function
TL;DR: Although they escaped notice until relatively recently, miRNAs comprise one of the more abundant classes of gene regulatory molecules in multicellular organisms and likely influence the output of many protein-coding genes.
Journal ArticleDOI
Conserved seed pairing, often flanked by adenosines, indicates that thousands of human genes are microRNA targets
TL;DR: In a four-genome analysis of 3' UTRs, approximately 13,000 regulatory relationships were detected above the estimate of false-positive predictions, thereby implicating as miRNA targets more than 5300 human genes, which represented 30% of the gene set.
Journal ArticleDOI
MicroRNA expression profiles classify human cancers
Jun Lu,Gad Getz,Eric A. Miska,Eric A. Miska,Ezequiel Alvarez-Saavedra,Justin Lamb,David Peck,Alejandro Sweet-Cordero,Alejandro Sweet-Cordero,Benjamin L. Ebert,Benjamin L. Ebert,Raymond H. Mak,Raymond H. Mak,Adolfo A. Ferrando,James R. Downing,Tyler Jacks,H. Robert Horvitz,H. Robert Horvitz,Todd R. Golub,Todd R. Golub,Todd R. Golub +20 more
TL;DR: A new, bead-based flow cytometric miRNA expression profiling method is used to present a systematic expression analysis of 217 mammalian miRNAs from 334 samples, including multiple human cancers, and finds the miRNA profiles are surprisingly informative, reflecting the developmental lineage and differentiation state of the tumours.
Journal ArticleDOI
Frequent deletions and down-regulation of micro- RNA genes miR15 and miR16 at 13q14 in chronic lymphocytic leukemia
George A. Calin,Calin Dan Dumitru,Masayoshi Shimizu,Roberta Bichi,Simona Zupo,Evan Noch,Hansjuerg Aldler,Sashi Rattan,Michael J. Keating,Kanti R. Rai,Laura Z. Rassenti,Thomas J. Kipps,Massimo Negrini,Florencia Bullrich,Carlo M. Croce +14 more
TL;DR: Detailed deletion and expression analysis shows that miR15 and miR16 are located within a 30-kb region of loss in CLL, and that both genes are deleted or down-regulated in the majority (≈68%) of CLL cases.
Journal ArticleDOI
Microarray analysis shows that some microRNAs downregulate large numbers of target mRNAs
Lee P. Lim,Nelson C. Lau,Philip W. Garrett-engele,Andrew Grimson,Janell M. Schelter,John C. Castle,David P. Bartel,Peter S. Linsley,Jason M. Johnson +8 more
TL;DR: These results suggest that metazoan miRNAs can reduce the levels of many of their target transcripts, not just the amount of protein deriving from these transcripts, and seem to downregulate a far greater number of targets than previously appreciated.
Related Papers (5)
MicroRNA expression profiles classify human cancers
Jun Lu,Gad Getz,Eric A. Miska,Eric A. Miska,Ezequiel Alvarez-Saavedra,Justin Lamb,David Peck,Alejandro Sweet-Cordero,Alejandro Sweet-Cordero,Benjamin L. Ebert,Benjamin L. Ebert,Raymond H. Mak,Raymond H. Mak,Adolfo A. Ferrando,James R. Downing,Tyler Jacks,H. Robert Horvitz,H. Robert Horvitz,Todd R. Golub,Todd R. Golub,Todd R. Golub +20 more
Frequent deletions and down-regulation of micro- RNA genes miR15 and miR16 at 13q14 in chronic lymphocytic leukemia
A microRNA expression signature of human solid tumors defines cancer gene targets
MicroRNA gene expression deregulation in human breast cancer.
Marilena V. Iorio,Manuela Ferracin,Chang Gong Liu,Angelo Veronese,Riccardo Spizzo,Silvia Sabbioni,Eros Magri,Massimo Pedriali,Muller Fabbri,Manuela Campiglio,Sylvie Ménard,Juan P. Palazzo,Anne L. Rosenberg,Piero Musiani,Stefano Volinia,Italo Nenci,George A. Calin,Patrizia Querzoli,Massimo Negrini,Carlo M. Croce +19 more