J 2021

Identification of tumors with NRG1 rearrangement, including a novel putative pathogenic UNC5D-NRG1 gene fusion in prostate cancer by data-drilling a de-identified tumor database

PTAKOVA, Nikola, Petr MARTINEK, Lubos HOLUBEC, Vaclav JANOVSKY, Jana VANCUROVA et. al.

Basic information

Original name

Identification of tumors with NRG1 rearrangement, including a novel putative pathogenic UNC5D-NRG1 gene fusion in prostate cancer by data-drilling a de-identified tumor database

Authors

PTAKOVA, Nikola (203 Czech Republic), Petr MARTINEK (203 Czech Republic), Lubos HOLUBEC (203 Czech Republic), Vaclav JANOVSKY (203 Czech Republic), Jana VANCUROVA (203 Czech Republic), Petr GROSSMANN (203 Czech Republic), Paloma Alcaraz NAVARRO, Juan F. Rodriguez MORENO, Reza ALAGHEHBANDAN, Ondrej HES (203 Czech Republic), Ondřej MÁJEK (203 Czech Republic, belonging to the institution), Milos PESEK (203 Czech Republic), Michal MICHAL (203 Czech Republic) and Ondrej ONDIC (203 Czech Republic, guarantor)

Edition

GENES CHROMOSOMES & CANCER, HOBOKEN, WILEY-BLACKWELL, 2021, 1045-2257

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30204 Oncology

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 4.263

RIV identification code

RIV/00216224:14110/21:00121773

Organization unit

Faculty of Medicine

UT WoS

000621111200001

Keywords in English

carcinoma; data drilling; ERBB; ERBB3; gene fusion; gene rearrangement; genetics; HER; HER 3; EGF‐ like domain; lung; MAPK; molecular; mRNA sequencing; neuregulin; next‐ generation sequencing; NRG1; PIK

Tags

Tags

International impact, Reviewed
Změněno: 15/6/2021 09:06, Mgr. Tereza Miškechová

Abstract

V originále

The fusion genes containing neuregulin-1 (NRG1) are newly described potentially actionable oncogenic drivers. Initial clinical trials have shown a positive response to targeted treatment in some cases of NRG1 rearranged lung adenocarcinoma, cholangiocarcinoma, and pancreatic carcinoma. The cost-effective large scale identification of NRG1 rearranged tumors is an open question. We have tested a data-drilling approach by performing a retrospective assessment of a de-identified molecular profiling database of 3263 tumors submitted for fusion testing. Gene fusion detection was performed by RNA-based targeted next-generation sequencing using the Archer Fusion Plex kits for Illumina (ArcherDX Inc., Boulder, CO). Novel fusion transcripts were confirmed by a custom-designed RT-PCR. Also, the aberrant expression of CK20 was studied immunohistochemically. The frequency of NRG1 rearranged tumors was 0.2% (7/3263). The most common histologic type was lung adenocarcinoma (n = 5). Also, renal carcinoma (n = 1) and prostatic adenocarcinoma (n = 1) were found. Identified fusion partners were of a wide range (CD74, SDC4, TNC, VAMP2, UNC5D), with CD74, SDC4 being found twice. The UNC5D is a novel fusion partner identified in prostate adenocarcinoma. There was no co-occurrence with the other tested fusions nor KRAS, BRAF, and the other gene mutations specified in the applied gene panels. Immunohistochemically, the focal expression of CK20 was present in 2 lung adenocarcinomas. We believe it should be considered as an incidental finding. In conclusion, the overall frequency of tumors with NRG1 fusion was 0.2%. All tumors were carcinomas. We confirm (invasive mucinous) lung adenocarcinoma as being the most frequent tumor presenting NRG1 fusion. Herein novel putative pathogenic gene fusion UNC5D-NRG1 is described. The potential role of immunohistochemistry in tumor identification should be further addressed.