Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2024 Jul 2;84(13):2181-2201.
doi: 10.1158/0008-5472.CAN-24-0132.

Comprehensive Genetic Profiling Reveals Frequent Alterations of Driver Genes on the X Chromosome in Extranodal NK/T-cell Lymphoma

Yuta Ito  1   2 Amira Marouf  3 Yasunori Kogure  1 Junji Koya  1 Raphaël Liévin  3 Julie Bruneau  3   4 Mariko Tabata  1   5 Yuki Saito  1   6 Sumito Shingaki  1 Mitsuhiro Yuasa  1   7 Kentaro Yamaguchi  1   8 Koichi Murakami  1   8 Robert Weil  9 Manon Vavasseur  3 Guillaume P Andrieu  10   11 Mehdi Latiri  10   11 Layla Veleanu  10   11 Michaël Dussiot  3 Isabelle André  12 Akshay Joshi  12 Chantal Lagresle-Peyrou  13 Aude Magerus  14 Sammara Chaubard  15 David Lavergne  15 Emmanuel Bachy  16   17 Erika Brunet  18 Virginie Fataccioli  19   20 Chantal Brouzes  10   11 Camille Laurent  21   22 Laurence de Leval  23 Alexandra Traverse-Glehen  24 Céline Bossard  25 Marie Parrens  26 Véronique Meignin  27 Laure Philippe  28 Julien Rossignol  3   29 Felipe Suarez  3   29 Jean-Marie Michot  30 Olivier Tournilhac  31 Gandhi Damaj  32 François Lemonnier  20   33 Christine Bôle-Feysot  34 Patrick Nitschké  35 Bruno Tesson  36 Cécile Laurent  36 Thierry Molina  3   4 Vahid Asnafi  10   11 Yosaku Watatani  37 Kenichi Chiba  38 Ai Okada  38 Yuichi Shiraishi  38 Sachiko Tsukita  39 Koji Izutsu  40   41 Hiroaki Miyoshi  42 Koichi Ohshima  42 Seiji Sakata  43   44   45 Akito Dobashi  43   44   45 Kengo Takeuchi  43   44   45 Masashi Sanada  46 Philippe Gaulard  19   20 Arnaud Jaccard  15 Seishi Ogawa  37   47   48 Olivier Hermine  3   29 Keisuke Kataoka  1   8 Lucile Couronné  3   11
Affiliations

Comprehensive Genetic Profiling Reveals Frequent Alterations of Driver Genes on the X Chromosome in Extranodal NK/T-cell Lymphoma

Yuta Ito et al. Cancer Res. .

Abstract

Extranodal NK/T-cell lymphoma (ENKTCL) is an Epstein-Barr virus (EBV)-related neoplasm with male dominance and a poor prognosis. A better understanding of the genetic alterations and their functional roles in ENKTCL could help improve patient stratification and treatments. In this study, we performed a comprehensive genetic analysis of 178 ENKTCL cases to delineate the landscape of mutations, copy number alterations (CNA), and structural variations, identifying 34 driver genes including six previously unappreciated ones, namely, HLA-B, HLA-C, ROBO1, CD58, POT1, and MAP2K1. Among them, CD274 (24%) was the most frequently altered, followed by TP53 (20%), CDKN2A (19%), ARID1A (15%), HLA-A (15%), BCOR (14%), and MSN (14%). Chromosome X losses were the most common arm-level CNAs in females (∼40%), and alterations of four X-linked driver genes (MSN, BCOR, DDX3X, and KDM6A) were more frequent in males and females harboring chromosome X losses. Among X-linked drivers, MSN was the most recurrently altered, and its expression was lost in approximately one-third of cases using immunohistochemical analysis. Functional studies of human cell lines showed that MSN disruption promoted cell proliferation and NF-κB activation. Moreover, MSN inactivation increased sensitivity to NF-κB inhibition in vitro and in vivo. In addition, recurrent deletions were observed at the origin of replication in the EBV genome (6%). Finally, by integrating the 34 drivers and 19 significant arm-level CNAs, nonnegative matrix factorization and consensus clustering identified two molecular groups with different genetic features and prognoses irrespective of clinical prognostic factors. Together, these findings could help improve diagnostic and therapeutic strategies in ENKTCL. Significance: Integrative genetic analyses and functional studies in extranodal NK/T-cell lymphoma identify frequent disruptions of X-linked drivers, reveal prognostic molecular subgroups, and uncover recurrent MSN alterations that confer sensitivity to NF-κB inhibition.

PubMed Disclaimer

MeSH terms

LinkOut - more resources