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BLOOD COMMENTARIES

GATA1 has a foundational role in erythropoiesis. The investigators compare the function of 2 forms (the full-length protein and a shorter form) of the transcription factor GATA1 and show that the N-terminal domain of GATA1 is critical to red cell differentiation.

BLOOD SPOTLIGHT

In this Blood Spotlight, the authors review the appropriate clinical background, mechanism of action, and detailed therapeutic data about duvelisib in chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) and follicular lymphoma.

REVIEW ARTICLE

In a review article, the authors discuss the present and future of molecular testing in chronic myeloid leukemia (CML) as a paradigm of the evolution of technologies assisting in better diagnosis, risk stratification, and response monitoring of leukemia and other cancers.

IMMUNOBIOLOGY AND IMMUNOTHERAPY

Despite notably high response rates to B-cell maturation antigen (BCMA) chimeric antigen receptor (CAR) T cells in multiple myeloma, few patients have a sustained, very good partial or complete response. This article presents a novel strategy to increase the efficacy of BCMA-directed CAR T-cell therapy and shows that γ-secretase inhibitors improve the efficacy of BCMA CAR T cells by increasing BCMA expression and reducing soluble BCMA.

LYMPHOID NEOPLASIA

MYELOID NEOPLASIA

RED CELLS, IRON, AND ERYTHROPOIESIS

GATA1 has a foundational role in erythropoiesis. The investigators compare the function of 2 forms (the full-length protein and a shorter form) of the transcription factor GATA1 and show that the N-terminal domain of GATA1 is critical to red cell differentiation.

THROMBOSIS AND HEMOSTASIS

Targeting natural anticoagulant proteins as a means to rebalance the hemostatic system is an emerging trend in the development of innovative therapeutic strategies for hemophilia. These 2 articles develop these concepts in the areas of hemostasis and contact activation. In the study by Aymonnier and colleagues, simple amino acid substitutions converted a serpin elastase inhibitor, α1-antitrypsin (α1AT), into a potent antithrombin, activated protein C inhibitor, or anti-PKa/FXIIa inhibitor. In the study by de Maat and colleagues, redesign of α1AT strongly altered its inhibitory behavior and enables it to be used for the treatment of contact system–mediated thrombosis and inflammation.

In this work related to familial aggregation of familial venous thromboembolism, the investigators report genomic and transcriptomic association of 16 novel susceptibility loci for venous thromboembolism.

Targeting natural anticoagulant proteins as a means to rebalance the hemostatic system is an emerging trend in the development of innovative therapeutic strategies for hemophilia. These 2 articles develop these concepts in the areas of hemostasis and contact activation. In the study by Aymonnier and colleagues, simple amino acid substitutions converted a serpin elastase inhibitor, α1-antitrypsin (α1AT), into a potent antithrombin, activated protein C inhibitor, or anti-PKa/FXIIa inhibitor. In the study by de Maat and colleagues, redesign of α1AT strongly altered its inhibitory behavior and enables it to be used for the treatment of contact system–mediated thrombosis and inflammation.

TRANSPLANTATION

These studies demonstrate how activation of the NLRP3 inflammasome pathway influences the function of myeloid-derived suppressor cells (MDSCs) in the setting of acute graft-versus-host disease (aGVHD).

BLOOD WORK

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