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• W4387563345 abstract "Multiple myeloma (MM) and its precursor states, smoldering myeloma (SM) and monoclonal gammopathy of undetermined significance (MGUS) are associated with increased incidence of thrombosis, however the cause of this is unknown. Lenalidomide treatment of MM substantially improves patient survival, although significantly increases thrombotic risk by an unknown mechanism. This pilot study aimed to establish the impact of MM and its treatment with Lenalidomide on platelet function. We analyzed platelet function in MGUS, SM and MM compared to healthy controls. We report an increase in platelet reactivity in MGUS, SM, and MM where increases in fibrinogen binding, P-selectin exposure, altered receptor expression, elevated levels of aggregation and enhanced sensitivity to agonist stimulation were observed. We also demonstrate an increase in patient platelet reactivity post Lenalidomide treatment compared to pre-treatment. We show Lenalidomide treatment of platelets ex vivo increased reactivity that was associated with formation of larger thrombi at arterial shear rates but not venous shear rates. This study demonstrates a clear increase in platelet reactivity and prothrombotic potential in patients with MGUS, SM and MM which is elevated further upon treatment with Lenalidomide. Our observations suggest that more detailed studies are warranted to determine mechanisms of thrombotic complications to enable the development of new preventative strategies that specifically target platelets.What is the context?Multiple myeloma is associated with increased risk of thrombosis, although the potential role of platelets in this has not been evaluated.What is new?We show in this pilot study that multiple myeloma and its precursor states of smoldering myeloma and monoclonal gammopathy of undetermined significance are associated with increased levels of platelet responses. This is further exacerbated by treatment with the immunomodulatory drug lenalidomide.What is the impact?This study suggests that more detailed studies are warranted to explore the mechanisms that cause these effects in a larger population of patients, since this may reveal new approaches to prevent myeloma-associated thrombotic complications." @default.
• W4387563345 created "2023-10-13" @default.
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• W4387563345 date "2023-10-11" @default.
• W4387563345 modified "2023-10-13" @default.
• W4387563345 title "Multiple myeloma and its treatment contribute to increased platelet reactivity" @default.
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• W4387563345 doi "https://doi.org/10.1080/09537104.2023.2264940" @default.
• W4387563345 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37822056" @default.
• W4387563345 hasPublicationYear "2023" @default.
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