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Stem cells are cells that have the capacity to self-renew by dividing and to develop into more mature, specialised cells. Stem cells can be unipotent, multipotent, pluripotent or totipotent, depending on the number of cell types to which they can give rise.
Organelles called mitochondria are transferred to blood-vessel-forming cells by support cells. Unexpectedly, these mitochondria are degraded, kick-starting the production of new ones and boosting vessel formation.
A therapeutic strategy that alters gene expression in a rare and severe neurodevelopmental condition has been tested in stem-cell-based models of the disease, and has been shown to correct genetic and cellular defects.
MYC regulates numerous genes involved in cell growth and proliferation. Here, Li-Bao et al. study the DNA regions that regulate Myc transcription in early mouse embryos and pluripotent stem cells. They report a specific region with independent modules dedicated to discrete temporal and spatial phases of Myc expression.
Hu et al. describe ARTseq-FISH, a spatial omics method that enables multiplexed detection of mRNAs, proteins and phospho-proteins simultaneously and at the same resolution. The authors investigate gene expression changes in a heterogenous colony of micropatterned mESCs.
Organelles called mitochondria are transferred to blood-vessel-forming cells by support cells. Unexpectedly, these mitochondria are degraded, kick-starting the production of new ones and boosting vessel formation.