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Transcriptome-wide association study of multiple myeloma identifies candidate susceptibility genes

Lookup NU author(s): Professor Graham Jackson



This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).


BACKGROUND: While genome-wide association studies (GWAS) of multiple myeloma (MM) have identified variants at 23 regions influencing risk, the genes underlying these associations are largely unknown. To identify candidate causal genes at these regions and search for novel risk regions, we performed a multi-tissue transcriptome-wide association study (TWAS). RESULTS: GWAS data on 7319 MM cases and 234,385 controls was integrated with Genotype-Tissue Expression Project (GTEx) data assayed in 48 tissues (sample sizes, N = 80-491), including lymphocyte cell lines and whole blood, to predict gene expression. We identified 108 genes at 13 independent regions associated with MM risk, all of which were in 1 Mb of known MM GWAS risk variants. Of these, 94 genes, located in eight regions, had not previously been considered as a candidate gene for that locus. CONCLUSIONS: Our findings highlight the value of leveraging expression data from multiple tissues to identify candidate genes responsible for GWAS associations which provide insight into MM tumorigenesis. Among the genes identified, a number have plausible roles in MM biology, notably APOBEC3C, APOBEC3H, APOBEC3D, APOBEC3F, APOBEC3G, or have been previously implicated in other malignancies. The genes identified in this TWAS can be explored for follow-up and validation to further understand their role in MM biology.

Publication metadata

Author(s): Went M, Kinnersley B, Sud A, Johnson DC, Weinhold N, Forsti A, van Duin M, Orlando G, Mitchell JS, Kuiper R, Walker BA, Gregory WM, Hoffmann P, Jackson GH, Nothen MM, da Silva Filho MI, Thomsen H, Broyl A, Davies FE, Thorsteinsdottir U, Hansson M, Kaiser M, Sonneveld P, Goldschmidt H, Stefansson K, Hemminki K, Nilsson B, Morgan GJ, Houlston RS

Publication type: Article

Publication status: Published

Journal: Human Genomics

Year: 2019

Volume: 13

Issue: 1

Online publication date: 20/08/2019

Acceptance date: 12/08/2019

Date deposited: 17/09/2019

ISSN (electronic): 1479-7364

Publisher: BioMed Central Ltd.


DOI: 10.1186/s40246-019-0231-5

PubMed id: 31429796


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Funder referenceFunder name
Cancer Research UK
Mr. Ralph Stockwell
Royal Marsden Haematology Research Fund