J 2018

Chromothripsis 18 in multiple myeloma patient with rapid extramedullary relapse

SMETANA, Jan, Jan OPPELT, Martin ŠTORK, Luděk POUR, Petr KUGLÍK et. al.

Basic information

Original name

Chromothripsis 18 in multiple myeloma patient with rapid extramedullary relapse

Authors

SMETANA, Jan (203 Czech Republic, belonging to the institution), Jan OPPELT (203 Czech Republic, belonging to the institution), Martin ŠTORK (203 Czech Republic), Luděk POUR (203 Czech Republic) and Petr KUGLÍK (203 Czech Republic, guarantor, belonging to the institution)

Edition

MOLECULAR CYTOGENETICS, BioMed Central, 2018, 1755-8166

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10603 Genetics and heredity

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 1.331

RIV identification code

RIV/00216224:14310/18:00102223

Organization unit

Faculty of Science

UT WoS

000422755300001

Keywords in English

Multiple myeloma; Chromothripsis; Array-CGH; NGS; Mutation screening

Tags

Tags

International impact, Reviewed
Změněno: 19/3/2019 13:50, Mgr. Pavla Foltynová, Ph.D.

Abstract

V originále

Background Catastrophic chromosomal event known as chromothripsis was proven to be a significant hallmark of poor prognosis in several cancer diseases. While this phenomenon is very rare in among multiple myeloma (MM) patients, its presence in karyotype is associated with very poor prognosis. Case presentation In our case, we report a 62 year female patient with rapid progression of multiple myeloma (MM) into extramedullary disease and short overall survival (OS=23 months). I-FISH investigation revealed presence of gain 1q21 and hyperdiploidy (chromosomes 5,9,15) in 82% and 86%, respectively, while IgH rearrangements, del(17)(p13) and del(13)(q14) were evaluated as negative. Whole-genome profiling using array-CGH showed complex genomic changes including hyperdiploidy (trisomy of chromosomes 3, 5, 9, 11, 15 and 19), monosomy X, structural gains (1q21-1q23.1, 1q32-1q44, 16p13.13-16p11.2) and losses (1q23.1-1q32.1, 8p23.3-8p11.21) of genetic material and chromothripsis in chromosome 18 with 6 breakpoint areas. Next-generation sequencing showed a total of 338 variants with 1.8% (6/338) of pathological mutations in NRAS (c.181C>A, p.Gln61Lys) or variants of unknown significance in TP53, CUX1 and POU4F1. Conclusions Our findings suggest that presence of chromothripsis should be considered as another important genetic hallmark of poor prognosis in MM patients and utilization of genome-wide screening techniques such as array-CGH and NGS improves the clinical diagnostics of the disease.

Links

MUNI/A/0824/2017, interní kód MU
Name: Podpora výzkumné činnosti studentů molekulární biologie a genetiky 6 (Acronym: MolBiolGen)
Investor: Masaryk University, Category A