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Genomic Basis of Multiple Myeloma Subtypes from the MMRF CoMMpass Study

Skerget, S.; Penaherrera, D.; Chari, A.; Jagannath, S.; Siegel, D. S.; Vij, R.; Orloff, G.; Jakubowiak, A.; Niesvizky, R.; Liles, D.; Berdeja, J.; Levy, M.; Wolf, J.; Usmani, S. Z.; The MMRF CoMMpass Network, ; Christofferson, A. W.; Nasser, S.; Aldrich, J. L.; Legendre, C.; Benard, B.; Miller, C.; Turner, B.; Kurdoglu, A.; Washington, M.; Yellapantula, V.; Adkins, J. R.; Cuyugan, L.; Boateng, M.; Helland, A.; Kyman, S.; McDonald, J.; Reiman, R.; Stephenson, K.; Tassone, E.; Blanski, A.; Docter, B.; Kirchhoff, M.; Rohrer, D. C.; D'Agostino, M.; Gamella, M.; Collison, K.; Stumph, J.; Kidd, P.;

2021-08-05 genetic and genomic medicine
10.1101/2021.08.02.21261211 medRxiv
Show abstract

Multiple myeloma is a treatable, but currently incurable, hematological malignancy of plasma cells characterized by diverse and complex tumor genetics for which precision medicine approaches to treatment are lacking. The MMRF CoMMpass study is a longitudinal, observational clinical study of newly diagnosed multiple myeloma patients where tumor samples are characterized using whole genome, exome, and RNA sequencing at diagnosis and progression, and clinical data is collected every three months. Analyses of the baseline cohort identified genes that are the target of recurrent gain- and loss-of-function events. Consensus clustering identified 8 and 12 unique copy number and expression subtypes of myeloma, respectively, identifying high- risk genetic subtypes and elucidating many of the molecular underpinnings of these unique biological groups. Analysis of serial samples showed 25.5% of patients transition to a high-risk expression subtype at progression. We observed robust expression of immunotherapy targets in this subtype, suggesting a potential therapeutic option.

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