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'Hare and tortoise' by Lara Crow, inspired by the Opinion on p883, which compares fast and slow life history phenotypes in the context of tumour evolution and heterogeneity.
The bone marrow microenvironment can support the growth and activity of leukaemia stem cells, and two recent papers suggest several ways in which these interactions might be targeted for therapeutic benefit.
A paper by Dmitry Bulavin and colleagues shows that WIP1 is involved in regulating DNA methylation-mediated silencing of heterochromatin and might contribute to C-to-T substitutions and mutation load in breast cancers.
A paper inCell Stem Cellthat uses lineage tracing in the pituitary shows that, although mutations in a subpopulation of stem cells can induce tumour formation, the tumour cells do not arise from the mutated stem cells.
Three papers report the discovery of recurring deleterious mutations in the cohesin subunitSTAG2in urothelial bladder cancers, but the evidence for the contribution of STAG2 loss to aneuploidy is conflicting.
A new study identifies the tumour suppressor folliculin as a GTPase-activating protein that regulates the nucleotide status of the RAG proteins, which are important regulators of mTOR complex 1 kinase activity.
Mammalian basic HLH (helix–loop–helix)–PER–ARNT–SIM (bHLH–PAS) proteins are heterodimeric transcription factors. Recently determined structures of their PAS domains and successful small-molecule screening programmes are now providing new opportunities to discover selective agonists and antagonists directed against this multitasking family of transcription factors.
Several studies have recently highlighted a crucial role for adenosine signalling in regulating various aspects of the cell-intrinsic and cell-extrinsic processes of cancer development. This Review critically discusses adenosine and its effects on immune, endothelial and cancer cells during the course of neoplastic disease.
The processes of intravasation and extravasation are thought to be crucial for cancer cell dissemination and metastasis. This Review describes how cancer cells cross the endothelial barrier, with a focus on the extravasation step.
The roles of vascular endothelial growth factor (VEGF) in cancer go beyond effects on the vasculature. VEGF signalling in tumour cells, which is mediated by VEGF receptor tyrosine kinases and the neuropilins, contributes to many aspects of tumorigenesis, as highlighted in this Review.
Evolutionary life history theory posits that some organisms reproduce rapidly whereas others invest more resources in survival. This framework might help us to understand the diversity of phenotypes that are displayed by tumour cells, including stem cell-like phenotypes, and could have important clinical implications.
