The Mutational Landscape of Circulating Tumor Cells in Multiple Myeloma
Keywords: 
Materias Investigacion::Ciencias de la Salud::Hematología
Multiple myeloma
Issue Date: 
2017
Publisher: 
Elsevier
OpenAIRE: 
info:eu_repo/grantAgreement/EC/ERC/680200-MYELOMANEXT
ISSN: 
2211-1247
Note: 
This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Citation: 
Mishima, Y. (Yuji); Paiva, B. (Bruno); Shi, J. (Jiantao); et al. "The Mutational Landscape of Circulating Tumor Cells in Multiple Myeloma". Cell Reports. 19, 2017, 218 - 224
Abstract
The development of sensitive and non-invasive ‘‘liquid biopsies’’ presents new opportunities for longitudinal monitoring of tumor dissemination and clonal evolution. The number of circulating tumor cells (CTCs) is prognostic in multiple myeloma (MM), but there is little information on their genetic features. Here, we have analyzed the genomic landscape of CTCs from 29 MM patients, including eight cases with matched/paired bone marrow (BM) tumor cells. Our results show that 100% of clonal mutations in patient BM were detected in CTCs and that 99% of clonal mutations in CTCs were present in BM MM. These include typical driver mutations in MM such as in KRAS, NRAS, or BRAF. These data suggest that BM and CTC samples have similar clonal structures, as discordances between the two were restricted to subclonal mutations. Accordingly, our results pave the way for potentially less invasive mutation screening of MM patients through characterization of CTCs.

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