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MicroRNA profiling reveals distinct signatures in B cell chronic lymphocytic leukemias

Open access
Calin, George Adrian, Liu, Chang-Gong, Sevignani, Cinzia, Ferracin, Manuela, Felli, Nadia, Dumitru, Calin Dan, Shimizu, Masayoshi, Cimmino, Amelia, Zupo, Simona, Dono, Mariella, Dell'Aquila, Marie L., Alder, Hansjuerg, Rassenti, Laura, Kipps, Thomas J., Bullrich, Florencia, Negrini, Massimo, Croce, Carlo M.·2004·Proceedings of the National Academy of Sciences

Abstract

Little is known about the expression levels or function of micro-RNAs (miRNAs) in normal and neoplastic cells, although it is becoming clear that miRNAs play important roles in the regulation of gene expression during development [Ambros, V. (2003) Cell 113, 673–676; McManus, M. T. (2003) Semin. Cancer Biol. 13, 253–258]. We now report the genomewide expression profiling of miRNAs in human B cell chronic lymphocytic leukemia (CLL) by using a microarray containing hundreds of human precursor and mature miRNA oligonucleotide probes. This approach allowed us to identify significant differences in miRNome expression between CLL samples and normal CD5+ B cells; data were confirmed by Northern blot analyses and real-time RT-PCR. At least two distinct clusters of CLL samples can be identified that were associated with the presence or absence of Zap-70 expression, a predictor of early disease progression. Two miRNA signatures were associated with the presence or absence of mutations in the expressed Ig variableregion genes or with deletions at 13q14, respectively. These data suggest that miRNA expression patterns have relevance to the biological and clinical behavior of this leukemia.

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Metadata

Authors
Calin, G. A., Liu, C.-G., Sevignani, C., Ferracin, M., Felli, N., Dumitru, C. D., Shimizu, M., Cimmino, A., Zupo, S., Dono, M., Dell'Aquila, M. L., Alder, H., Rassenti, L., Kipps, T. J., Bullrich, F., Negrini, M., & Croce, C. M.
Venue
Proceedings of the National Academy of Sciences
Published
2004-07-29
Volume
101
Issue
32
Pages
11755-11760
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2150696691
Cited by
1,285
References
6
FWCI
42.90
Type
journal article
Language
en
Open access
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CoChat. (2026). Citation check: MicroRNA profiling reveals distinct signatures in B cell chronic lymphocytic leukemias. https://app.cochat.ai/papers/10.1073/pnas.0404432101
The paper
Calin, G. A., Liu, C.-G., Sevignani, C., Ferracin, M., Felli, N., Dumitru, C. D., Shimizu, M., Cimmino, A., Zupo, S., Dono, M., Dell'Aquila, M. L., Alder, H., Rassenti, L., Kipps, T. J., Bullrich, F., Negrini, M., & Croce, C. M. (2004). MicroRNA profiling reveals distinct signatures in B cell chronic lymphocytic leukemias. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.0404432101

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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