Blood Podcast

Latest Episodes:

Anti-malaria benefit of hydroxyurea in SCA, IL-22 in the treatment in lower GI acute GVHD, and FLT3-ITD changes depend on context in AML Mar 23, 2023

Show notes

In this week’s episode we will review a study in sub-Saharan Africa where treatment of sickle cell anemia with hydroxyurea is associated with a lower incidence of malaria. New research suggests mild myelosuppression associated with hydroxyurea treatment may actually have a salutary effect. Next, a potential new treatment approach in lower GI acute GVHD. Adding an interleukin-22 therapy to corticosteroid treatment was well tolerated with a high rate of response in this very challenging patient population. Finally, common AML driver mutations such as FLT3ITD (or internal tandem duplications) orchestrate distinct transcriptional and epigenetic programs based on different genetic contexts. In the context of a common pediatric AML mutation, FLT3ITD selectively activated type I interferon signaling, suggesting a distinct therapeutic vulnerability.

Single-cell genotyping of MDS/CMML clonal output, VTE risk in diffuse glioma, and Del(1p32) is an adverse prognostic factor in myeloma Mar 16, 2023

Show notes

In this week’s episode we’ll discuss how azacytidine therapy influences the contributions of mutated HSC clones to hematopoiesis in MDS and CMML, learn more about the risk of venous thromboembolism in patients with adult-type diffuse glioma, and discuss the importance of 1p32 deletions as an independent and adverse prognostic factor in myeloma.

RUNX1 isoform imbalance drives ML-DS, VWF-binding RNA aptamer for hemophilia A treatment, and EZH1/2 inhibitor valemetostat in relapsed/refractory ATL Mar 09, 2023

Show notes

In this week’s episode we will review an imbalance among RUNX1 isoforms is key to the pathogenesis of trisomy 21-associated myeloid leukemia, raising the possibility that equilibrium could be restored genetically or pharmacologically. Next, an RNA aptamer demonstrating promising results in patients with hemophilia A. Lastly, phase 2 data on valemetostat, a selective inhibitor of EZH1 and 2, in relapsed or refractory adult T-cell leukemia/lymphoma.

Phase 3 trial of leniolisib in activated PI3Kδ syndrome, dabrafenib plus trametinib in relapsed/refractory hairy cell leukemia, and TγδLGL leukemia as a more symptomatic subset of leukemia Mar 02, 2023

Show notes

In this week’s episode, we’ll discuss the findings from a phase 3 trial of PI3Kδ inhibitor leniolisib in activated PI3Kd syndrome, learn more about the efficacy and safety of dabrafenib plus trametinib in relapsed/refractory BRAF V600E mutation-positive hairy cell leukemia, and review the findings from a study conducted in an international cohort of patients with Tγδ LGL leukemia.

Review Series on Banked Allogeneic Immune Effector Cells Feb 23, 2023

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In this bonus episode Associate Editor, Dr. Helen Heslop discusses Banked Allogeneic Immune Effector Cells with Blood author Dr. Jeffrey Miller.

Review Series on Banked Allogeneic Immune Effector Cells

Hydroxyurea for secondary stroke prevention in SCD, mutant CALR as a rogue cytokine in MPNs, and parsing pathobiology in Burkitt lymphoma Feb 23, 2023

Show notes

In this week’s episode we will first review a new clinical trial evidence that for patients with sickle cell anemia in resource limited settings, both low and moderate dose hydroxyurea are effective for secondary stroke prevention. Next, a research article showing how secreted mutant calreticulin functions as a “rogue cytokine” in myeloproliferative neoplasms, acting in a paracrine manner to promote growth of nearby tumor cells. Finally, we’ll review new research on the pathobiology of adult and pediatric Burkitt lymphoma. With the help of whole-genome sequencing, investigators unraveled distinct subgroups, which may provide a new framework for epidemiology, diagnosis, and treatment of these lymphomas.

HSCT for hypomorphic RAG deficiency, EBV-driven lymphoid neoplasms in pediatric ALL, and clonal hematopoiesis and recurrent vascular events in stroke patients Feb 16, 2023

Show notes

In this week’s episode we’ll discuss the benefits of early diagnosis and hematopoietic stem cell transplant in patients with hypomorphic RAG deficiency, learn more about EBV-driven lymphoid neoplasms associated with pediatric ALL maintenance therapy, and analyze the associations between clonal hematopoiesis and recurrent vascular events and death in patients with ischemic stroke.

MRD dynamics during ixazomib maintenance in MM, disparities in CAR T-cell therapy for ALL, and BAX variants and resistance to BH3-mimetics in AML Feb 09, 2023

Show notes

In this week's episode, we’ll discuss the dynamics of measurable residual disease, or MRD, over time in myeloma patients undergoing ixazomib maintenance. Serial measurements were feasible and provided more detailed risk stratification than single timepoint measurements—findings that could have implications for the use of MRD to guide treatment duration. Up next, a research article exploring the relationships between poverty, and lack of neighborhood opportunity, with outcomes of CAR T -cell therapy in children with acute lymphoblastic leukemia. The findings suggest opportunities for interventions to improve access for less socioeconomically advantaged children. Finally, we’ll review a report demonstrating that acquired mutations in the pro-apoptotic effector protein BAX are common in patients with AML treated with venetoclax. These and other research observations reveal BAX variants as a hurdle to the long-term success of BCL2-targeted therapy in this disease.

Itacitinib monotherapy for GVHD, the role of ERG in EVI1-driven AML, and germline DDX41 mutations in myeloid neoplasms Feb 02, 2023

Show notes

In this week's episode, we’ll discuss the safety and efficacy of itacitinib monotherapy in low-risk acute GVHD, learn how ERG was discovered to be a key transcriptional target in EVI1-driven AML, and define a unique subtype of myeloid neoplasms characterized by germline DDX41 mutations.

Stem cell transplant for SCD normalizes brain blood flow, novel GALE variants disrupt platelet development, and revisiting risk classification in NPM1-mutant AML Jan 26, 2023

Show notes

In this week’s episode, new research shows that in children with sickle cell disease, stem cell transplantation normalizes blood flow in the brain. The improvements in cerebral hemodynamics seen in this study may help explain the stroke protection seen following transplant in this high-risk patient population. Next up, a research article providing new insights on thrombocytopenia related to the GALE gene, including the identification of several previously unreported variants. The findings highlight the importance of GALE in the glycosylation of proteins that play a role in the production and function of platelets. Finally, we’ll review a brief report on NPM1-mutated AML with adverse cytogenetics in light of the updated ELN 2022 classification. In short, adverse-risk cytogenetics remain significantly associated with unfavorable prognosis under the refined definitions, supporting the recent categorization of this entity as adverse-risk.

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