Highlights from The FEBS Journal – November 2017

The highlights from issue 22 include the Editor’s Choice article describing interplay between hypoxia and circadian rhythm and a State-of-the-Art Review on macropinocytosis.

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Dec 05, 2017
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A circadian clock gene, PER2, activates HIF-1 as an effector molecule for recruitment of HIF-1α to promoter regions of its downstream genes

Harada and colleagues (2017), The FEBS Journal, doi: 10.1111/febs.14280

The hypoxia-inducible factor 1 (HIF-1α) is a transcription factor that mediates cellular responses to hypoxia. HIF-1α is known to be upregulated by a component of the circadian clock, the period clock 2 (PER2), but the underlying mechanism was unclear. Harada and colleagues now show that PER2 interacts with HIF-1α and facilitates its recruitment to a hypoxia-response element in the promoter of the vascular endothelial growth factor (VEGF). This PER2-mediated activation occurs in hypoxic conditions and depends on the hydroxylation status of N803 in HIF-1α.

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Drinking problems: mechanisms of macropinosome formation and maturation

Buckley and King (2017), The FEBS Journal, doi: 10.1111/febs.14115

Macropinocytosis is the non-specific uptake of extracellular fluid by cells such as macrophages and dendritic cells. It has recently been implicated in the pathogenesis of certain neurodegenerative diseases, atherosclerosis and cancer. In this State-of-the-Art Review, Buckley and King highlight the mechanisms underlying membrane rearrangements during macropinosome formation, the signalling cascades that regulate this process and the future directions in this fast-growing field.

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The FEBS Journal

The FEBS Journal is an international journal devoted to the rapid publication of full-length papers covering a wide range of topics in any area of the molecular life sciences.

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