Haematologica (Apr 2013)

Chromosomal aberrations and their prognostic value in a series of 174 untreated patients with Waldenström's macroglobulinemia

  • Florence Nguyen-Khac,
  • Jerome Lambert,
  • Elise Chapiro,
  • Aurore Grelier,
  • Sarah Mould,
  • Carole Barin,
  • Agnes Daudignon,
  • Nathalie Gachard,
  • Stéphanie Struski,
  • Catherine Henry,
  • Dominique Penther,
  • Hossein Mossafa,
  • Joris Andrieux,
  • Virginie Eclache,
  • Chrystèle Bilhou-Nabera,
  • Isabelle Luquet,
  • Christine Terre,
  • Laurence Baranger,
  • Francine Mugneret,
  • Jean Chiesa,
  • Marie-Joelle Mozziconacci,
  • Evelyne Callet-Bauchu,
  • Lauren Veronese,
  • Hélène Blons,
  • Roger Owen,
  • Julie Lejeune,
  • Sylvie Chevret,
  • Hélène Merle-Beral,
  • Véronique Leblond

DOI
https://doi.org/10.3324/haematol.2012.070458
Journal volume & issue
Vol. 98, no. 4

Abstract

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Waldenström's macroglobulinemia is a disease of mature B cells, the genetic basis of which is poorly understood. Few recurrent chromosomal abnormalities have been reported, and their prognostic value is not known. We conducted a prospective cytogenetic study of Waldenström's macroglobulinemia and examined the prognostic value of chromosomal aberrations in an international randomized trial. The main aberrations were 6q deletions (30%), trisomy 18 (15%), 13q deletions (13%), 17p (TP53) deletions (8%), trisomy 4 (8%), and 11q (ATM) deletions (7%). There was a significant association between trisomy of chromosome 4 and trisomy of chromosome 18. Translocations involving the IGH genes were rare (