Featured
-
-
Article
| Open Access
Bone marrow adiposity modulation after long duration spaceflight in astronauts
Bone marrow adiposity is linked to disease, and it is unknown how it is modulated during space travel. Here, the authors show that astronauts returning from ISS missions had decreased marrow fat and increased hematopoiesis and bone formation, suggesting that adipose reserves in the bone marrow might be used as an energy source to counteract anemia and bone loss associated with space flight.
- Tammy Liu
- , Gerd Melkus
- & Guy Trudel
-
Article
| Open Access
Highly efficient platelet generation in lung vasculature reproduced by microfluidics
Highly efficient generation of platelets in the vasculature. Here, Zhao et al. show that the mouse platelet precursor cell, megakaryocytes, generate physiological numbers of functional platelets when passaged repeatedly through pulmonary vasculature.
- Xiaojuan Zhao
- , Dominic Alibhai
- & Alastair W. Poole
-
Article
| Open Access
EpoR stimulates rapid cycling and larger red cells during mouse and human erythropoiesis
Maturing erythroblasts become smaller with every cell division. Here, the authors show that Epo stimulation promotes cell division and also generates larger red cells, and that this occurs in mouse and human cells, suggesting that red cell size could be a diagnostic marker for hypoxic stress.
- Daniel Hidalgo
- , Jacob Bejder
- & Merav Socolovsky
-
Article
| Open Access
Single-cell analysis reveals fibroblast heterogeneity and myeloid-derived adipocyte progenitors in murine skin wounds
The diversity of fibroblasts contributing to wound healing is unclear. Here, the authors use single-cell RNA-sequencing to identify heterogeneity among murine fibroblasts in the wound and find that recruited myeloid cells contribute to adipocyte regeneration during healing.
- Christian F. Guerrero-Juarez
- , Priya H. Dedhia
- & Maksim V. Plikus
-
Article
| Open Access
Large-scale production of megakaryocytes from human pluripotent stem cells by chemically defined forward programming
Platelets are blood circulating corpuscles generated from megakaryocytes that initiate wound healing. Here, Moreau et al. describe a way of producing large quantities of megakaryocytes from human pluripotent stem cells in the laboratory, moving us a step closer to manufacturing transfusion products.
- Thomas Moreau
- , Amanda L. Evans
- & Cedric Ghevaert
-
Article
| Open Access
Exposure to a youthful circulation rejuvenates bone repair through modulation of β-catenin
The reparative capacity of tissues decreases with age. Here, Baht et al. perform parabiosis experiments and provide evidence for the existence of a soluble factor produced by young, but not old, haematopoietic cells that is capable of improving fracture repair in old mice.
- Gurpreet S. Baht
- , David Silkstone
- & Benjamin A. Alman
-
Article |
The class II PI 3-kinase, PI3KC2α, links platelet internal membrane structure to shear-dependent adhesive function
The lipid kinase PI3KC2α is essential for embryogenesis, yet its role in adult homeostasis is unknown. Here, the authors show that PI3KC2α regulates the structure of the internal membrane reserves of murine megakaryocytes and platelets, affecting the platelets’ adhesiveness and prothrombotic function.
- Jessica K. Mountford
- , Claire Petitjean
- & Shaun P. Jackson
-
Article |
RUNX1-induced silencing of non-muscle myosin heavy chain IIB contributes to megakaryocyte polyploidization
Megakaryocytes undergo polyploidization prior to forming platelets but this process is poorly characterised. In this study, non-muscle myosin IIB heavy chain, that localizes to the contractile ring during mitosis, is shown to be silenced prior to polyploidization in a RUNX1-dependent manner.
- Larissa Lordier
- , Dominique Bluteau
- & Yunhua Chang
Megakaryocyte- and erythroblast-specific cell-free DNA patterns in plasma and platelets reflect thrombopoiesis and erythropoiesis levels