Sorcin links calcium signaling to vesicle trafficking, regulates Polo-like kinase 1 and is necessary for mitosis.

Sorcin, a protein overexpressed in many multi-drug resistant cancers, dynamically localizes to distinct subcellular sites in 3T3-L1 fibroblasts during cell-cycle progression. During interphase sorcin is in the nucleus, in the plasma membrane, in endoplasmic reticulum (ER) cisternae, and in ER-derive...

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Autores principales: Vasiliki S Lalioti, Andrea Ilari, David J O'Connell, Elena Poser, Ignacio V Sandoval, Gianni Colotti
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Publicado: Public Library of Science (PLoS) 2014
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Acceso en línea:https://doaj.org/article/98ccc40e4dd24fc0aa07dcae20e8ae3a
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spelling oai:doaj.org-article:98ccc40e4dd24fc0aa07dcae20e8ae3a2021-11-18T08:38:00ZSorcin links calcium signaling to vesicle trafficking, regulates Polo-like kinase 1 and is necessary for mitosis.1932-620310.1371/journal.pone.0085438https://doaj.org/article/98ccc40e4dd24fc0aa07dcae20e8ae3a2014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24427308/?tool=EBIhttps://doaj.org/toc/1932-6203Sorcin, a protein overexpressed in many multi-drug resistant cancers, dynamically localizes to distinct subcellular sites in 3T3-L1 fibroblasts during cell-cycle progression. During interphase sorcin is in the nucleus, in the plasma membrane, in endoplasmic reticulum (ER) cisternae, and in ER-derived vesicles localized along the microtubules. These vesicles are positive to RyR, SERCA, calreticulin and Rab10. At the beginning of mitosis, sorcin-containing vesicles associate with the mitotic spindle, and during telophase are concentrated in the cleavage furrow and, subsequently, in the midbody. Sorcin regulates dimensions and calcium load of the ER vesicles by inhibiting RYR and activating SERCA. Analysis of sorcin interactome reveals calcium-dependent interactions with many proteins, including Polo-like kinase 1 (PLK1), Aurora A and Aurora B kinases. Sorcin interacts physically with PLK1, is phosphorylated by PLK1 and induces PLK1 autophosphorylation, thereby regulating kinase activity. Knockdown of sorcin results in major defects in mitosis and cytokinesis, increase in the number of rounded polynucleated cells, blockage of cell progression in G2/M, apoptosis and cell death. Sorcin regulates calcium homeostasis and is necessary for the activation of mitosis and cytokinesis.Vasiliki S LaliotiAndrea IlariDavid J O'ConnellElena PoserIgnacio V SandovalGianni ColottiPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 1, p e85438 (2014)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Vasiliki S Lalioti
Andrea Ilari
David J O'Connell
Elena Poser
Ignacio V Sandoval
Gianni Colotti
Sorcin links calcium signaling to vesicle trafficking, regulates Polo-like kinase 1 and is necessary for mitosis.
description Sorcin, a protein overexpressed in many multi-drug resistant cancers, dynamically localizes to distinct subcellular sites in 3T3-L1 fibroblasts during cell-cycle progression. During interphase sorcin is in the nucleus, in the plasma membrane, in endoplasmic reticulum (ER) cisternae, and in ER-derived vesicles localized along the microtubules. These vesicles are positive to RyR, SERCA, calreticulin and Rab10. At the beginning of mitosis, sorcin-containing vesicles associate with the mitotic spindle, and during telophase are concentrated in the cleavage furrow and, subsequently, in the midbody. Sorcin regulates dimensions and calcium load of the ER vesicles by inhibiting RYR and activating SERCA. Analysis of sorcin interactome reveals calcium-dependent interactions with many proteins, including Polo-like kinase 1 (PLK1), Aurora A and Aurora B kinases. Sorcin interacts physically with PLK1, is phosphorylated by PLK1 and induces PLK1 autophosphorylation, thereby regulating kinase activity. Knockdown of sorcin results in major defects in mitosis and cytokinesis, increase in the number of rounded polynucleated cells, blockage of cell progression in G2/M, apoptosis and cell death. Sorcin regulates calcium homeostasis and is necessary for the activation of mitosis and cytokinesis.
format article
author Vasiliki S Lalioti
Andrea Ilari
David J O'Connell
Elena Poser
Ignacio V Sandoval
Gianni Colotti
author_facet Vasiliki S Lalioti
Andrea Ilari
David J O'Connell
Elena Poser
Ignacio V Sandoval
Gianni Colotti
author_sort Vasiliki S Lalioti
title Sorcin links calcium signaling to vesicle trafficking, regulates Polo-like kinase 1 and is necessary for mitosis.
title_short Sorcin links calcium signaling to vesicle trafficking, regulates Polo-like kinase 1 and is necessary for mitosis.
title_full Sorcin links calcium signaling to vesicle trafficking, regulates Polo-like kinase 1 and is necessary for mitosis.
title_fullStr Sorcin links calcium signaling to vesicle trafficking, regulates Polo-like kinase 1 and is necessary for mitosis.
title_full_unstemmed Sorcin links calcium signaling to vesicle trafficking, regulates Polo-like kinase 1 and is necessary for mitosis.
title_sort sorcin links calcium signaling to vesicle trafficking, regulates polo-like kinase 1 and is necessary for mitosis.
publisher Public Library of Science (PLoS)
publishDate 2014
url https://doaj.org/article/98ccc40e4dd24fc0aa07dcae20e8ae3a
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AT davidjoconnell sorcinlinkscalciumsignalingtovesicletraffickingregulatespololikekinase1andisnecessaryformitosis
AT elenaposer sorcinlinkscalciumsignalingtovesicletraffickingregulatespololikekinase1andisnecessaryformitosis
AT ignaciovsandoval sorcinlinkscalciumsignalingtovesicletraffickingregulatespololikekinase1andisnecessaryformitosis
AT giannicolotti sorcinlinkscalciumsignalingtovesicletraffickingregulatespololikekinase1andisnecessaryformitosis
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