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Blood Podcast

Latest episodes

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Jul 28, 2022 • 18min

Naturally selected CD7 CAR T cell therapy for T-lineage malignancies, CD4+ T cell exhaustion and PD-L1 inhibition in B-ALL, and tPA-induced phosphorylation of occludin in stroke

In this week’s episode we review a novel approach to generating autologous CD7-specific CAR T therapy for patients with T-cell malignancies that overcomes a key limitation: target-driven fratricide. We’ll also learn about new research pinpointing a key subset of exhausted CD4+ T cells in B- ALL, which also provides a rationale for combining tyrosine kinase inhibitors and PD-L1 blockers to reverse exhaustion and enhance leukemia clearance. Finally, we’ll discuss studies in a mouse model of acute ischemic stroke, showing that inhibiting phosphorylation of a tight junction protein in endothelial cells reduces risk of intracranial hemorrhage after treatment with recombinant tissue plasminogen activator.
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Jul 21, 2022 • 21min

Role of PIEZO1 in leukocyte extravasation, CD8+ T-cell activation in macrophage activation syndrome, and ABO O blood group as a novel risk factor for HIT

In this week’s episode we first review new work revealing the critical role of the tension-sensitive cation channel PIEZO1 in the transendothelial migration of leukocytes. We’ll also review new research suggesting that CD8+ T-cells dimly expressing the CD4 antigen are increased in patients with various forms of secondary HLH, a finding that may have diagnostic, prognostic, and therapeutic significance. Finally, we’ll review a large, genome-wide association study identifying the ABO O blood group as a novel risk factor for heparin-induced thrombocytopenia—a finding that could have implications for prediction of this syndrome and for the management of related conditions.
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Jul 14, 2022 • 19min

Long-term ibrutinib-rituximab vs FCR in CLL, procoagulant platelet sentinels in prevention of inflammatory bleeding, and new SERPINC1 variants in thrombophilia

In this week’s episode we’ll compare the long-term outcomes of ibrutinib-rituximab combination therapy versus FCR chemoimmunotherapy in chronic lymphocytic leukemia, discuss the role of procoagulant platelet sentinels in inflammatory bleeding, and learn more about variants in the SERPINC1 gene encoding antithrombin that cause severe thrombophilia.
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Jul 7, 2022 • 22min

Malignancy risk from genetically modified immune effector cells, p53 immunohistochemistry as a new tool in AML, and phenotypic escape from CD19-directed immunotherapies.

Today we’ll learn more about the risk of subsequent malignancies in patients treated with genetically modified immune effector cells, discuss how p53 immunohistochemistry can be a global readout for TP53 alterations in AML, and uncover the role of CD19-negative CD22-positive B-cell progenitors in immune escape from CD19-directed therapies.
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Jun 30, 2022 • 19min

Overcoming CAR T cell resistance in myeloma, why anti-CCR4 antibody therapy in CTCL sometimes fails, and corticosteroids increase risk of VOE in sickle disease

In this week’s episode we review a novel strategy for overcoming resistance to CAR T cell therapy that involves the dual targeting of myeloma cells and cancer-associated fibroblasts. We’ll also explore a recent report demonstrating that loss of CCR4 expression is common after treatment of CTCL with the anti-CCR4 antibody mogamulizumab. Finally, we’ll review real-world data demonstrating an association between corticosteroid exposure and risk of vaso-occlusive episodes in patients with sickle cell disease, providing further evidence that steroids should be avoided in this setting.
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Jun 23, 2022 • 19min

Salvage therapy with NICE for Hodgkin lymphoma, BMP2/SMAD pathway activation in leukemic transformation, and the role of zinc in T-cell reconstitution after HSCT

In this week’s episode we’ll learn more about salvage therapy with nivolumab plus or minus ICE (or NICE) for Hodgkin lymphoma, discuss the role of BMP2/SMAD pathway activation in leukemic transformation, and learn more about the role of zinc in T-cell reconstitution after transplantation.
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Jun 16, 2022 • 20min

MRD and post-transplant outcomes in older AML patients, enhancer hijacking in a novel high-risk B-other ALL subtype, and ruxolitinib in pediatric HLH 

In this week’s episode we will discuss new data demonstrating that, in older patients with AML, post-transplant relapse risk is driven by clinical and molecular features present at diagnosis, but not remission MRD.  We’ll also explore two studies that characterize a novel high-risk B-ALL subtype, defined by two unique genomic alterations that includes a deletion resulting in enhancer hijacking that deregulates expression of the CDX2 homeobox transcription factor. Finally, we’ll review results of a large, single-arm phase 2 trial providing encouraging clinical evidence for the use of ruxolitinib as a front-line treatment for pediatric hemophagocytic lymphohistiocytosis.
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Jun 9, 2022 • 21min

Anti-PF4 antibodies after Covid vaccination, CAR T-cell therapy for CNS leukemia, and advances in Diamond-Blackfan anemia

In this week's episode, we’ll learn more about the interaction between anti-PF4 antibodies and anticoagulants in vaccine-induced thrombotic thrombocytopenia, discuss the efficacy and safety of CD19-specific CAR T-cell-based therapy in B-cell ALL patients with central nervous system leukemia, and learn more about erythroid cell-extrinsic factors that can inhibit erythropoiesis in adjacent cells.
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Jun 2, 2022 • 22min

Fixed-duration ibrutinib + venetoclax for CLL, aryl hydrocarbon receptor in idiopathic pneumonia syndrome, and VWF propeptide and multimerization

In this week's episode, we discuss results from the international phase 2 CAPTIVATE study showing that in patients with treatment-naive CLL, fixed-dose ibrutinib plus venetoclax yields deep and durable responses and promising progression-free survival. We’ll also explore data that show that aryl hydrocarbon receptor is a critical inflammation checkpoint in the lung epithelium—a finding that may have therapeutic implications for idiopathic pneumonia syndrome. Lastly, we’ll review new insights into the role of von Willebrand Factor propeptide in facilitating multimer formation, shedding light on a potential novel treatment approach for type 2a von Willebrand disease.
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May 26, 2022 • 20min

HEATR3 variants as a new cause of Diamond-Blackfan anemia, zanubrutinib in mantle cell lymphoma, and HMGB1 inhibits Epo signaling in anemia of inflammation

In this week's episode we discuss the role of HEATR3 variants as a new cause of Diamond-Blackfan anemia, learn more about the long-term efficacy and safety of zanubrutinib in relapsed or refractory mantle cell lymphoma, and uncover an unexpected role for HMGB1 in anemia of inflammation by inhibiting erythropoietin signaling.

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