Variants in ELL2 influencing immunoglobulin levels associate with multiple myeloma.

Bhairavi Swaminathan, Guðmar Thorleifsson, Magnus Jöud, Mina Ali, Ellinor Johnsson, Ram Ajore, Patrick Sulem, Britt-Marie Halvarsson, Guðmundur Eyjolfsson, Vilhelmina Haraldsdottir, Christina Hultman, Erik Ingelsson, Sigurður Y Kristinsson, Anna K Kähler, Stig Lenhoff, Gisli Masson, Ulf-Henrik Mellqvist, Robert Månsson, Sven Nelander, Isleifur OlafssonOlof Sigurðardottir, Hlif Steingrimsdóttir, Annette Vangsted, Ulla Vogel, Anders Waage, Hareth Nahi, Daniel F Gudbjartsson, Thorunn Rafnar, Ingemar Turesson, Urban Gullberg, Kári Stefánsson, Markus Hansson, Unnur Thorsteinsdóttir, Björn Nilsson

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Abstract

Multiple myeloma (MM) is characterized by an uninhibited, clonal growth of plasma cells. While first-degree relatives of patients with MM show an increased risk of MM, the genetic basis of inherited MM susceptibility is incompletely understood. Here we report a genome-wide association study in the Nordic region identifying a novel MM risk locus at ELL2 (rs56219066T; odds ratio (OR)=1.25; P=9.6 × 10(-10)). This gene encodes a stoichiometrically limiting component of the super-elongation complex that drives secretory-specific immunoglobulin mRNA production and transcriptional regulation in plasma cells. We find that the MM risk allele harbours a Thr298Ala missense variant in an ELL2 domain required for transcription elongation. Consistent with a hypomorphic effect, we find that the MM risk allele also associates with reduced levels of immunoglobulin A (IgA) and G (IgG) in healthy subjects (P=8.6 × 10(-9) and P=6.4 × 10(-3), respectively) and, potentially, with an increased risk of bacterial meningitis (OR=1.30; P=0.0024).
Original languageEnglish
Article number7213
Pages (from-to)1-8
JournalNature Communications
Volume6
DOIs
Publication statusPublished - 2015

Subject classification (UKÄ)

  • Hematology

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