Deciphering the genetics and mechanisms of predisposition to multiple myeloma

Molly Went, Laura Duran-Lozano, Gisli H Halldorsson, Andrea Gunnell, Nerea Ugidos-Damboriena, Philip Law, Ludvig Ekdahl, Amit Sud, Gudmar Thorleifsson, Malte Thodberg, Thorunn Olafsdottir, Antton Lamarca-Arrizabalaga, Caterina Cafaro, Abhishek Niroula, Ram Ajore, Aitzkoa Lopez de Lapuente Portilla, Zain Ali, Maroulio Pertesi, Hartmut Goldschmidt, Lilja StefansdottirSigurdur Y Kristinsson, Simon N Stacey, Thorvardur J Love, Saemundur Rognvaldsson, Roman Hajek, Pavel Vodicka, Ulrika Pettersson-Kymmer, Florentin Späth, Carolina Schinke, Frits Van Rhee, Patrick Sulem, Egil Ferkingstad, Grimur Hjorleifsson Eldjarn, Ulf-Henrik Mellqvist, Ingileif Jonsdottir, Gareth Morgan, Pieter Sonneveld, Anders Waage, Niels Weinhold, Hauke Thomsen, Asta Försti, Markus Hansson, Annette Juul-Vangsted, Unnur Thorsteinsdottir, Kari Hemminki, Martin Kaiser, Thorunn Rafnar, Kari Stefansson, Richard Houlston, Björn Nilsson*

*Corresponding author af dette arbejde
15 Citationer (Scopus)

Abstract

Multiple myeloma (MM) is an incurable malignancy of plasma cells. Epidemiological studies indicate a substantial heritable component, but the underlying mechanisms remain unclear. Here, in a genome-wide association study totaling 10,906 cases and 366,221 controls, we identify 35 MM risk loci, 12 of which are novel. Through functional fine-mapping and Mendelian randomization, we uncover two causal mechanisms for inherited MM risk: longer telomeres; and elevated levels of B-cell maturation antigen (BCMA) and interleukin-5 receptor alpha (IL5RA) in plasma. The largest increase in BCMA and IL5RA levels is mediated by the risk variant rs34562254-A at TNFRSF13B. While individuals with loss-of-function variants in TNFRSF13B develop B-cell immunodeficiency, rs34562254-A exerts a gain-of-function effect, increasing MM risk through amplified B-cell responses. Our results represent an analysis of genetic MM predisposition, highlighting causal mechanisms contributing to MM development.

OriginalsprogEngelsk
Artikelnummer6644
TidsskriftNature Communications
Vol/bind15
Udgave nummer1
ISSN2041-1722
DOI
StatusUdgivet - 5 aug. 2024

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