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- W2145587555 abstract "Desmosomes are intercellular adhesive junctions of major importance for tissue integrity. To allow cell motility and migration they are down-regulated in epidermal wound healing. Electron microscopy indicates that whole desmosomes are internalised by cells in tissues, but the mechanism of down-regulation is unclear. In this paper we provide an overview of the internalisation of half-desmosomes by cultured cells induced by calcium chelation. Our results show that: (i) half desmosome internalisation is dependent on conventional PKC isoforms; (ii) microtubules transport internalised half desmosomes to the region of the centrosome by a kinesin-dependent mechanism; (iii) desmosomal proteins remain colocalised after internalisation and are not recycled to the cell surface; (iv) internalised desmosomes are degraded by the combined action of lysosomes and proteasomes. We also confirm that half desmosome internalisation is dependent upon the actin cytoskeleton. These results suggest that half desmosomes are not disassembled and recycled during or after internalisation but instead are transported to the centrosomal region where they are degraded. These findings may have significance for the down-regulation of desmosomes in wounds." @default.
- W2145587555 created "2016-06-24" @default.
- W2145587555 creator A5016413440 @default.
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- W2145587555 creator A5081261971 @default.
- W2145587555 date "2014-10-07" @default.
- W2145587555 modified "2023-10-18" @default.
- W2145587555 title "Down-Regulation of Desmosomes in Cultured Cells: The Roles of PKC, Microtubules and Lysosomal/Proteasomal Degradation" @default.
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- W2145587555 doi "https://doi.org/10.1371/journal.pone.0108570" @default.
- W2145587555 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/4188543" @default.
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- W2145587555 hasPublicationYear "2014" @default.
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