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Current Issue
Volume 136,
Issue 14,
October 1, 2020

Issue Highlights

Latest in Blood
Plenary Papers
T. R. L. Klei; J. Dalimot; B. Nota; M. Veldthuis; F. P. J. Mul; T. Rademakers; M. Hoogenboezem; S. Q. Nagelkerke; W. F. J. van IJcken; E. Oole; P. Svendsen; S. K. Moestrup; F. P. J. van Alphen; A. B. Meijer; T. W. Kuijpers; R. van Zwieten; R. van Bruggen
DOI: 10.1182/blood.2020005351
First Edition
Josée Perreault; Tony Tremblay; Marie-Josée Fournier; Mathieu Drouin; Guillaume Beaudoin-Bussières; Jérémie Prévost; Antoine Lewin; Philippe Bégin; Andrés Finzi; Renée Bazin
DOI: 10.1182/blood.2020008367
Clinical Trials and Observations
Nina Prokoph; Nicola A. Probst; Liam C. Lee; Jack M. Monahan; Jamie D. Matthews; Huan-Chang Liang; Klaas Bahnsen; Ivonne A. Montes-Mojarro; Elif Karaca-Atabay; Geeta G. Sharma; Vikas Malik; Hugo Larose; Sorcha D. Forde; Stephen P. Ducray; Cosimo Lobello; Qi Wang; Shi-Lu Luan; Šárka Pospíšilová; Carlo Gambacorti-Passerini; G. A. Amos Burke; Shahid Pervez; Andishe Attarbaschi; Andrea Janíková; Hélène Pacquement; Judith Landman-Parker; Anne Lambilliotte; Gudrun Schleiermacher; Wolfram Klapper; Ralf Jauch; Wilhelm Woessmann; Gilles Vassal; Lukas Kenner; Olaf Merkel; Luca Mologni; Roberto Chiarle; Laurence Brugières; Birgit Geoerger; Isaia Barbieri; Suzanne D. Turner
DOI: 10.1182/blood.2019003793


Message from ASH President on Diversity, Equity, and Inclusion

Authors and Reviewers: New COVID-19 Announcement

Featured Content

Blood Podcast: Season 1, Episode 39

In this week’s episode, we will learn more about the role of hepcidin in fetal iron homeostasis, review a new study with improved outcomes in HLA-antigen mismatched transplantation, and examine how two splicing factor mutations can coexist in the same cell in patients with myeloid malignancies.

Single-cell genomics reveals the genetic and molecular bases for escape from mutational epistasis in myeloid neoplasms

Conventional wisdom has it that cooccurrence of mutations in 2 RNA splicing factors in the same cell is lethal for cells. Taylor and colleagues used single-cell analysis to reveal that while this is generally true, concurrent pathogenic mutations in 2 such genes can occur, being observed in rare cases (<0.5%) of myeloid neoplasia. In a Plenary Paper, they reconcile this conundrum by showing that allele-specific differences in the degree of altered function account for whether splicing factor mutations can cooccur or must exist exclusively.

How I treat unexplained arterial thrombosis

Arginine, the substrate for nitric oxide production, is deficient in patients with sickle cell vaso-occlusive crisis. Morris et al report improved markers of oxidant stress and mitochondrial stress in platelet-rich plasma from 12 patients treated with intravenous arginine, suggesting that arginine may offer a potential therapeutic intervention for sickle crisis.

Sirolimus with CSP and MMF as GVHD prophylaxis for allogeneic transplantation with HLA antigen–mismatched donors

High levels of acute graft-versus-host-disease (aGVHD) are a barrier to use of donors mismatched at class I or II human leukocyte antigen (HLA) loci for allogeneic hematopoietic stem cell transplantation. Kornblit et al report that in a large phase 2 trial, the addition of sirolimus to standard GVHD prophylaxis achieved lower rates of severe aGVHD and improved overall survival in comparison with historical controls.

Quantitative proteomics reveals specific metabolic features of acute myeloid leukemia stem cells

Raffel et al report key proteome and transcriptome data sets for functionally characterized normal and leukemic hematopoietic stem cells. These investigations identify characteristic and targetable pathways active in leukemic stem cells compared to their normal counterparts, including in metabolic pathways that are particularly evident at the protein level.

Macrophage metabolic adaptation to heme detoxification involves CO-dependent activation of the pentose phosphate pathway

In preclinical studies including a murine model of sickle cell disease, Bories and colleagues uncovered a metabolic shift in macrophages involved in clearing free heme. This shift maintains redox homeostasis in macrophages. The data suggest that pharmacological modulation of this metabolic adaption may be a way to minimize the toxic effects of free heme in a variety of hematological disorders.

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