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Articles and research papers on cell division, cell structure, animal and plant cell biology and cell cycles.

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Protein homeostasis from the outside in

Nature Cell Biology, Published online: 08 July 2020; doi:10.1038/s41556-020-0534-8Secretory proteins undergo multiple rounds of co- and post-translational quality control checks inside the cell, but how their integrity is maintained outside the cell is an emerging topic. A study establishes a model system to investigate how the extracellular proteome...

Protein homeostasis from the outside in

Heterochromatin establishment during early mammalian development is regulated by pericentromeric RNA and characterized by non-repressive H3K9me3

Nature Cell Biology, Published online: 29 June 2020; doi:10.1038/s41556-020-0536-6Burton et al. show that H3K9me3 deposition catalysed by SUV39H2 and regulated by pericentromeric RNAs in the mouse paternal pronucleus does not suppress gene expression, but bookmarks promoters for compaction.

Unrestrained ESCRT-III drives micronuclear catastrophe and chromosome fragmentation

Nature Cell Biology, Published online: 29 June 2020; doi:10.1038/s41556-020-0537-5Vietri et al. show that the micronucleus fails to restrain ESCRT-III spreading due to its small size, resulting in aberrant accumulation of ESCRT-III to drive micronuclear collapse and DNA fragmentation.

Endocytic regulation of cellular ion homeostasis controls lysosome biogenesis

Nature Cell Biology, Published online: 29 June 2020; doi:10.1038/s41556-020-0535-7López-Hernández et al. show that exo-endocytosis of a Na+/H+ exchanger controls lysosome biogenesis through Ca2+/calcineurin-mediated activation of TFEB in response to osmotic stress.

Heterochromatin establishment during early mammalian development is regulated by pericentromeric RNA and characterized by non-repressive H3K9me3

Unrestrained ESCRT-III drives micronuclear catastrophe and chromosome fragmentation

Endocytic regulation of cellular ion homeostasis controls lysosome biogenesis

In and out from senescence

Nature Cell Biology, Published online: 26 June 2020; doi:10.1038/s41556-020-0540-xCellular senescence has been widely recognised for decades as a stable arrest of cell proliferation. A recent study identifies senescence establishment and maintenance as a dynamic and reversible process regulated by (in)activation of a predetermined enhancer landscape...

In and out from senescence

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