The Mutational Landscape of Circulating Tumor Cells in Multiple Myeloma.

Cell Rep
Authors
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.

Year of Publication
2017
Journal
Cell Rep
Volume
19
Issue
1
Pages
218-224
Date Published
2017 Apr 04
ISSN
2211-1247
DOI
10.1016/j.celrep.2017.03.025
PubMed ID
28380360
PubMed Central ID
PMC5439509
Links
Grant list
680200 / European Research Council / International
K08 CA191026 / CA / NCI NIH HHS / United States
R01 CA181683 / CA / NCI NIH HHS / United States