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Daratumumab and Romiplostim Combined Therapy for a Long-Standing Refractory Primary Immune Thrombocytopenia - Case Report.
Immunotargets Ther
January 2025
Institute of Hematology, Lady Davis Carmel Medical Center, Haifa, Israel.
Multi-refractory immune thrombocytopenia (ITP) is not uncommon and associated with high morbidity and mortality rates. Although the precise mechanism of ITP is not yet fully understood, a therapeutic approach that relies on using a single agent in each treatment line may not be sufficient in this population. We report the case of a 67-year-old female with long-standing multi-refractory ITP treated with a combination of Daratumumab and Romiplostim who achieved a durable response for more than 42 weeks.
View Article and Find Full Text PDFEvi1 governs Kdm6b-mediated histone demethylation to regulate the Laptm4b-driven mTOR pathway in hematopoietic progenitor cells.
J Clin Invest
December 2024
Department of Medicine and Department of Biochemistry and Molecular Biology, UF Health Cancer Center, University of Florida, Gainesville, Florida, USA.
Ecotropic viral integration site 1 (EVI1/MECOM) is frequently upregulated in myeloid malignancies. Here, we present an Evi1-transgenic mouse model with inducible expression in hematopoietic stem/progenitor cells (HSPCs). Upon induction of Evi1 expression, mice displayed anemia, thrombocytopenia, lymphopenia, and erythroid and megakaryocyte dysplasia with a significant expansion of committed myeloid progenitor cells, resembling human myelodysplastic syndrome/myeloproliferative neoplasm-like (MDS/MPN-like) disease.
View Article and Find Full Text PDFImpaired hemostatic and immune functions of platelets after acute thrombocytopenia.
J Thromb Haemost
December 2024
Institute of Vascular Biology and Thrombosis Research, Center of Physiology and Pharmacology, Medical University of Vienna, Vienna, Austria. Electronic address:
Background: Platelets are pivotal in maintaining vascular integrity, hemostasis, and immune modulation, with newly generated, immature platelets being the most responsive in fulfilling these tasks. Therefore, the immature platelet fraction provides insights into thrombopoiesis dynamics and clinical prognostication. However, it is currently unclear how immature platelet functions change in settings of acute thrombocytopenia.
View Article and Find Full Text PDFThe intestinal flora: The key to unraveling heterogeneity in immune thrombocytopenia?
Blood Rev
December 2024
Department of Experimental Immunohematology, Sanquin Research and Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, 1066 CX Amsterdam, the Netherlands. Electronic address:
Immune thrombocytopenia (ITP) is an autoimmune bleeding disorder characterized by enhanced platelet destruction and impaired platelet production, due to a loss of immune tolerance that leads to targeting of platelets and megakaryocytes by glycoprotein-autoantibodies and/or cytotoxic T cells. There is a high degree of heterogeneity in ITP patients signified by unpredictable disease trajectories and treatment responses. Initial studies in humans have identified intestinal microbiota perturbance in ITP.
View Article and Find Full Text PDFAn unusual case report of myelofibrosis following treatment for acute promyelocytic leukemia with myeloid sarcoma as the initial manifestation.
Heliyon
October 2024
Department of Hematology, Jingjiang People's Hospital Affiliated to Yangzhou University, Jingjiang, 214500, China.
Introduction: Acute promyelocytic leukemia (APL) is a subtype of acute myeloid leukemia (AML), with myeloid sarcoma (MS) seldom occurring at onset. Myelofibrosis (MF) is a condition characterized by megakaryocytic proliferation and atypia with an array of clinical findings, but MF secondary to APL treatment is extremely rare. MF secondary occurring after treatment of APL with MS as the initial presentation has not been reported.
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