Deregulation of microRNA expression in the different genetic subtypes of multiple myeloma and correlation with gene expression profiling

Specific microRNA (miRNA) signatures have been associated with different cytogenetic subtypes in acute leukemias. This finding prompted us to investigate potential associations between genetic abnormalities in multiple myeloma (MM) and singular miRNA expression profiles. Moreover, global gene expres...

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Veröffentlicht in:Leukemia 2010-03, Vol.24 (3), p.629-637
Hauptverfasser: Gutiérrez, N C, Sarasquete, M E, Misiewicz-Krzeminska, I, Delgado, M, De Las Rivas, J, Ticona, F V, Fermiñán, E, Martín-Jiménez, P, Chillón, C, Risueño, A, Hernández, J M, García-Sanz, R, González, M, San Miguel, J F
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container_end_page 637
container_issue 3
container_start_page 629
container_title Leukemia
container_volume 24
creator Gutiérrez, N C
Sarasquete, M E
Misiewicz-Krzeminska, I
Delgado, M
De Las Rivas, J
Ticona, F V
Fermiñán, E
Martín-Jiménez, P
Chillón, C
Risueño, A
Hernández, J M
García-Sanz, R
González, M
San Miguel, J F
description Specific microRNA (miRNA) signatures have been associated with different cytogenetic subtypes in acute leukemias. This finding prompted us to investigate potential associations between genetic abnormalities in multiple myeloma (MM) and singular miRNA expression profiles. Moreover, global gene expression profiling was also analyzed to find correlated miRNA gene expression and select miRNA target genes that show such correlation. For this purpose, we analyzed the expression level of 365 miRNAs and the gene expression profiling in 60 newly diagnosed MM patients, selected to represent the most relevant recurrent genetic abnormalities. Supervised analysis showed significantly deregulated miRNAs in the different cytogenetic subtypes as compared with normal PC. It is interesting to note that miR-1 and miR-133a clustered on the same chromosomal loci, were specifically overexpressed in the cases with t(14;16). The analysis of the relationship between miRNA expression and their respective target genes showed a conserved inverse correlation between several miRNAs deregulated in MM cells and CCND2 expression level. These results illustrate, for the first time, that miRNA expression pattern in MM is associated with genetic abnormalities, and that the correlation of the expression profile of miRNA and their putative mRNA targets is useful to find statistically significant protein-coding genes in MM pathogenesis associated with changes in specific miRNAs.
doi_str_mv 10.1038/leu.2009.274
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The analysis of the relationship between miRNA expression and their respective target genes showed a conserved inverse correlation between several miRNAs deregulated in MM cells and CCND2 expression level. 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subjects 631/208/191/2018
631/208/2489/1381
631/337/384/331
692/699/67/1990/804
Abnormalities
Basic-Leucine Zipper Transcription Factors - genetics
Biological and medical sciences
Cancer Research
CD47 Antigen - genetics
Chromosome Aberrations
Chromosome abnormalities
Complications and side effects
Critical Care Medicine
Cyclin D2 - genetics
Cytogenetics
Deregulation
Gene expression
Gene Expression Profiling
Genes
Genetic abnormalities
Genetic analysis
Genetic aspects
Genetic regulation
Hematologic and hematopoietic diseases
Hematology
Humans
Immunodeficiencies. Immunoglobulinopathies
Immunoglobulinopathies
Immunopathology
Intensive
Internal Medicine
Leukemia
Leukemias. Malignant lymphomas. Malignant reticulosis. Myelofibrosis
Medical sciences
Medicine
Medicine & Public Health
MicroRNA
MicroRNAs
MicroRNAs - analysis
miRNA
Multiple myeloma
Multiple Myeloma - etiology
Multiple Myeloma - genetics
Oncology
original-article
Pathogenesis
Physiological aspects
Ribonucleic acid
Risk factors
RNA
Statistical analysis
title Deregulation of microRNA expression in the different genetic subtypes of multiple myeloma and correlation with gene expression profiling
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