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EnglishThe identification of overexpressed miRNAs in multiple myeloma (MM) has progressively added a further level of complexity to MM biology. miRNA and gene expression profiles of two large representative MM datasets, available from retrospective and prospective series and encompassing a total of 249 patients at diagnosis, were analyzed by means of in silico integrative genomics methods, based on MAGIA2 and Micrographite computational procedures. We first identified relevant miRNA/transcription factors/target gene regulation circuits in the disease and linked them to biological processes. Members of the miR-99b/let-7e/miR-125a cluster, or of its paralog, upregulated in t(4;14), were connected with the specific transcription factors PBX1 and CEBPA and several target genes. These results were validated in two additional independent plasma cell tumor datasets. Then, we reconstructed a non-redundant miRNA-gene regulatory network in MM, linking miRNAs, such as let-7g, miR-19a, mirR-20a, mir-21, miR-29 family, miR-34 family, miR-125b, miR-155, miR-221 to pathways associated with MM subtypes, in particular the ErbB, the Hippo, and the Acute myeloid leukemia associated pathways.
Disentangling the microRNA regulatory milieu in multiple myeloma : integrative genomics analysis outlines mixed miRNA-TF circuits and pathway-derived networks modulated in t(4;14) patients / E. Calura, A. Bisognin, M. Manzoni, K. Todoerti, E. Taiana, G. Sales, G.J. Morgan, G. Tonon, N. Amodio, P. Tassone, A. Neri, L. Agnelli, C. Romualdi, S. Bortoluzzi. - In: ONCOTARGET. - ISSN 1949-2553. - 7:3(2016), pp. 2367-2378.
| Titolo: | Disentangling the microRNA regulatory milieu in multiple myeloma : integrative genomics analysis outlines mixed miRNA-TF circuits and pathway-derived networks modulated in t(4;14) patients |
| Autori: | |
| Parole Chiave: | transciptional regulatory network; microRNA; multiple myeloma; t(4;14) translocation |
| Settore Scientifico Disciplinare: | Settore MED/15 - Malattie del Sangue |
| Data di pubblicazione: | 2016 |
| Rivista: | |
| Tipologia: | Article (author) |
| Data ahead of print / Data di stampa: | 19-ott-2015 |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.18632/oncotarget.6151 |
| Appare nelle tipologie: | 01 - Articolo su periodico |
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| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| Calura_Oncotarget_2015.pdf | Publisher's version/PDF | Open Access Visualizza/Apri |
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