Targeted long-read sequencing of the Ewing sarcoma 6p25.1 susceptibility locus identifies germline-somatic interactions with EWSR1-FLI1 binding

Published by Elsevier Inc..

Ewing sarcoma (EwS) is a rare bone and soft tissue malignancy driven by chromosomal translocations encoding chimeric transcription factors, such as EWSR1-FLI1, that bind GGAA motifs forming novel enhancers that alter nearby expression. We propose that germline microsatellite variation at the 6p25.1 EwS susceptibility locus could impact downstream gene expression and EwS biology. We performed targeted long-read sequencing of EwS blood DNA to characterize variation and genomic features important for EWSR1-FLI1 binding. We identified 50 microsatellite alleles at 6p25.1 and observed that EwS-affected individuals had longer alleles (>135 bp) with more GGAA repeats. The 6p25.1 GGAA microsatellite showed chromatin features of an EWSR1-FLI1 enhancer and regulated expression of RREB1, a transcription factor associated with RAS/MAPK signaling. RREB1 knockdown reduced proliferation and clonogenic potential and reduced expression of cell cycle and DNA replication genes. Our integrative analysis at 6p25.1 details increased binding of longer GGAA microsatellite alleles with acquired EWSR-FLI1 to promote Ewing sarcomagenesis by RREB1-mediated proliferation.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:110

Enthalten in:

American journal of human genetics - 110(2023), 3 vom: 02. März, Seite 427-441

Sprache:

Englisch

Beteiligte Personen:

Lee, Olivia W [VerfasserIn]
Rodrigues, Calvin [VerfasserIn]
Lin, Shu-Hong [VerfasserIn]
Luo, Wen [VerfasserIn]
Jones, Kristine [VerfasserIn]
Brown, Derek W [VerfasserIn]
Zhou, Weiyin [VerfasserIn]
Karlins, Eric [VerfasserIn]
Khan, Sairah M [VerfasserIn]
Baulande, Sylvain [VerfasserIn]
Raynal, Virginie [VerfasserIn]
Surdez, Didier [VerfasserIn]
Reynaud, Stephanie [VerfasserIn]
Rubio, Rebeca Alba [VerfasserIn]
Zaidi, Sakina [VerfasserIn]
Grossetête, Sandrine [VerfasserIn]
Ballet, Stelly [VerfasserIn]
Lapouble, Eve [VerfasserIn]
Laurence, Valérie [VerfasserIn]
Pierron, Gaelle [VerfasserIn]
Gaspar, Nathalie [VerfasserIn]
Corradini, Nadège [VerfasserIn]
Marec-Bérard, Perrine [VerfasserIn]
Rothman, Nathaniel [VerfasserIn]
Dagnall, Casey L [VerfasserIn]
Burdett, Laurie [VerfasserIn]
Manning, Michelle [VerfasserIn]
Wyatt, Kathleen [VerfasserIn]
Yeager, Meredith [VerfasserIn]
Chari, Raj [VerfasserIn]
Leisenring, Wendy M [VerfasserIn]
Kulozik, Andreas E [VerfasserIn]
Kriebel, Jennifer [VerfasserIn]
Meitinger, Thomas [VerfasserIn]
Strauch, Konstantin [VerfasserIn]
Kirchner, Thomas [VerfasserIn]
Dirksen, Uta [VerfasserIn]
Mirabello, Lisa [VerfasserIn]
Tucker, Margaret A [VerfasserIn]
Tirode, Franck [VerfasserIn]
Armstrong, Gregory T [VerfasserIn]
Bhatia, Smita [VerfasserIn]
Robison, Leslie L [VerfasserIn]
Yasui, Yutaka [VerfasserIn]
Romero-Pérez, Laura [VerfasserIn]
Hartmann, Wolfgang [VerfasserIn]
Metzler, Markus [VerfasserIn]
Diver, W Ryan [VerfasserIn]
Lori, Adriana [VerfasserIn]
Freedman, Neal D [VerfasserIn]
Hoover, Robert N [VerfasserIn]
Morton, Lindsay M [VerfasserIn]
Chanock, Stephen J [VerfasserIn]
Grünewald, Thomas G P [VerfasserIn]
Delattre, Olivier [VerfasserIn]
Machiela, Mitchell J [VerfasserIn]

Links:

Volltext

Themen:

6p25.1
EWSR1 protein, human
EWSR1-FLI1
EWSR1-FLI1 fusion protein, human
Ewing sarcoma
FLI1 protein, human
GGAA microsatellite
GWAS
Germline somatic interaction
Journal Article
Long-read sequencing
Oncogene Proteins, Fusion
Proto-Oncogene Protein c-fli-1
RNA-Binding Protein EWS
RREB1
Research Support, N.I.H., Extramural

Anmerkungen:

Date Completed 07.03.2023

Date Revised 03.09.2023

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.ajhg.2023.01.017

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM352943289