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In the mission to reduce irreproducibility, true change can only come about if all stakeholders — researchers, institutions, funders and journals — join together with common purpose.
Tumours reprogram their metabolism to maximize macromolecule biosynthesis for growth. However, which of the common tumour-associated metabolic activities are critical for proliferation remains unclear. Glutamate-derived glutamine is now shown to satisfy the glutamine needs of glioblastoma, indicating that glutamine anaplerosis is dispensable for growth.
A powerful combination of two-colour imaging in vivo, Fourier-filtered kymography and simulations provides a high-resolution view of kinesin-2 transport dynamics in cilia. This study reveals heterotrimeric kinesin-II as an 'obstacle-course runner' and homodimeric OSM-3 (KIF17) as a 'long-distance runner', and elucidates the 'baton handoff' between these two kinesin-2 motors on the microtubule track.
Spatiotemporally distinct pluripotent states captured in vitro provide an accessible way of modelling early human development. An intricate interplay between the metabolome and histone modifications is now shown to drive the metabolic switch from human naive to primed pluripotency, one of the earliest steps of embryogenesis.
By comparing the metabolomes, transcriptomes and epigenomes of human pluripotent stem cell lines, Sperber et al. show that interplay between the metabolome and histone modifications drives the metabolic switch from naive to primed pluripotency.
Using in vivo quantitative single-molecule fluorescence microscopy of kinesin II and OSM-3 motor dynamics in C. elegans cilia, Peterman and colleagues show that kinesin II loads cargo at the base, whereas OSM-3 transports the cargo to the tip.
Through a proteomics approach, Qi and colleagues and Long and colleagues identify the sensor of the unfolded protein response IRE1α as an endogenous substrate of the E3 ubiquitin ligase involved in ER-associated degradation, Hrd1.
Gottlieb and colleagues demonstrate that glioblastoma cell proliferation under glutamine starvation conditions depends on the glutamine-synthetase-dependent conversion of glutamate to glutamine to fuel purine biosynthesis and cell growth.
Samakovlis and colleagues perform a genome-wide, tissue-specific RNAi screen in the Drosophila larval and adult airway systems and find that an initial transient anisotropic distribution of aPKC drives fibre orientation during tube formation.
Humphries and colleagues analyse proteomic data of integrin adhesion complexes to derive a consensus integrin adhesome and characterize the temporal dynamics of adhesome component recruitment during adhesion complex assembly and disassembly.
Pucadyil and colleagues develop an in vitro technique to analyse the conformational dynamics of dynamin during membrane fission events in a real-time, high-throughput manner, using fluorescence microscopy.
Austen et al. generated talin biosensors to study integrin-based force transduction. They report that extracellular rigidity sensing requires talin’s mechanical engagement and find talin isoform-dependent effects in integrin-mediated mechanosensing.
