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- W2007491346 abstract "Ca2+ signals control cell migration by regulating forward movement and cell adhesion. However, it is not well understood how Ca2+-regulatory proteins and second messengers are spatially organized in migrating cells. Here we show that receptor tyrosine kinase and phospholipase C signalling are restricted to the front of migrating endothelial leader cells, triggering local Ca2+ pulses, local depletion of Ca2+ in the endoplasmic reticulum and local activation of STIM1, supporting pulsatile front retraction and adhesion. At the same time, the mediator of store-operated Ca2+ influx, STIM1, is transported by microtubule plus ends to the front. Furthermore, higher Ca2+ pump rates in the front relative to the back of the plasma membrane enable effective local Ca2+ signalling by locally decreasing basal Ca2+. Finally, polarized phospholipase C signalling generates a diacylglycerol gradient towards the front that promotes persistent forward migration. Thus, cells employ an integrated Ca2+ control system with polarized Ca2+ signalling proteins and second messengers to synergistically promote directed cell migration. Meyer and colleagues used live-cell imaging to study the spatial organization of Ca2+ signalling network components during cell migration." @default.
- W2007491346 created "2016-06-24" @default.
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- W2007491346 date "2014-01-26" @default.
- W2007491346 modified "2023-09-27" @default.
- W2007491346 title "A polarized Ca2+, diacylglycerol and STIM1 signalling system regulates directed cell migration" @default.
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- W2007491346 doi "https://doi.org/10.1038/ncb2906" @default.
- W2007491346 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/3953390" @default.
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