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Background: Genome-wide association studies (GWAS) in European populations have identified genetic risk variants associated with multiple myeloma.
Methods: We performed association testing of common variation in eight regions in 1,318 patients with multiple myeloma and 1,480 controls of European ancestry and 1,305 patients with multiple myeloma and 7,078 controls of African ancestry and conducted a meta-analysis to localize the signals, with epigenetic annotation used to predict functionality.
Results: We found that variants in 7p15.3, 17p11.2, 22q13.1 were statistically significantly (P < 0.05) associated with multiple myeloma risk in persons of African ancestry and persons of European ancestry, and the variant in 3p22.1 was associated in European ancestry only. In a combined African ancestry-European ancestry meta-analysis, variation in five regions (2p23.3, 3p22.1, 7p15.3, 17p11.2, 22q13.1) was statistically significantly associated with multiple myeloma risk. In 3p22.1, the correlated variants clustered within the gene body of ULK4 Correlated variants in 7p15.3 clustered around an enhancer at the 3' end of the CDCA7L transcription termination site. A missense variant at 17p11.2 (rs34562254, Pro251Leu, OR, 1.32; P = 2.93 × 10) in TNFRSF13B encodes a lymphocyte-specific protein in the TNF receptor family that interacts with the NF-κB pathway. SNPs correlated with the index signal in 22q13.1 cluster around the promoter and enhancer regions of CBX7 CONCLUSIONS: We found that reported multiple myeloma susceptibility regions contain risk variants important across populations, supporting the use of multiple racial/ethnic groups with different underlying genetic architecture to enhance the localization and identification of putatively functional alleles.
Impact: A subset of reported risk loci for multiple myeloma has consistent effects across populations and is likely to be functional. Cancer Epidemiol Biomarkers Prev; 25(12); 1609-18. ©2016 AACR.
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http://dx.doi.org/10.1158/1055-9965.EPI-15-1193 | DOI Listing |
JAMA Netw Open
September 2025
Department of Internal Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, South Korea.
Importance: Patients with advanced cancer frequently receive broad-spectrum antibiotics, but changing use patterns across the end-of-life trajectory remain poorly understood.
Objective: To describe the patterns of broad-spectrum antibiotic use across defined end-of-life intervals in patients with advanced cancer.
Design, Setting, And Participants: This nationwide, population-based, retrospective cohort study used data from the South Korean National Health Insurance Service database to examine broad-spectrum antibiotic use among patients with advanced cancer who died between July 1, 2002, and December 31, 2021.
Ann Hematol
September 2025
Excellence Center for Comprehensive Cancer (ECCCC), King Chulalongkorn Memorial Hospital, Bangkok, Thailand.
Despite therapeutic advances, multiple myeloma (MM) remains incurable, especially in relapsed/refractory (R/R) cases. B-cell maturation antigen (BCMA) is a key target for novel immunotherapies, including chimeric antigen receptor T-cell (CAR-T) therapies and bispecific T-cell engagers (BiTEs), which vary in efficacy, toxicity, and accessibility. To compare the efficacy and safety of BCMA-directed CAR-T therapies and BiTEs in R/R MM through a systematic review and meta-analysis.
View Article and Find Full Text PDFBr J Haematol
July 2025
Division of Hematology, Huntsman Cancer Institute, University of Utah, Salt Lake City, Utah, USA.
Clin Lab
September 2025
Background: Light chain multiple myeloma (LCMM) is a malignant hematological disease characterized by bone marrow infiltration by tumor plasma cells and the secretion of monoclonal free light chains (κ or λ). It is often di-agnosed through hypogammaglobulinemia detected by serum protein electrophoresis, followed by immunotyping showing a monoclonal band in free light chains. However, the structure of monoclonal light chains can sometimes complicate laboratory findings.
View Article and Find Full Text PDFAdv Pharm Bull
July 2025
Department of Hematology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
Purpose: The survival and progression of multiple myeloma (MM) cells rely heavily on supportive factors and cells within the MM microenvironment, notably macrophages. The PI3K signaling pathway plays a crucial role in both myeloma cells survival and macrophage polarity, making it a potential target for altering the MM microenvironment dynamics.
Methods: In this study, the impact of LY294002, a PI3K signaling pathway inhibitor, on the viability of U266 myeloma cells in mono-culture and MM patient-derived bone marrow mononuclear cells (BM-MNCs) in co-culture was investigated.