| Golgi positioning. | |
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MedLine Citation:
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PMID: 21504874 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The Golgi apparatus in mammalian cells is positioned near the centrosome-based microtubule-organizing center (Fig. 1). Secretory cargo moves inward in membrane carriers for delivery to Golgi membranes in which it is processed and packaged for transport outward to the plasma membrane. Cytoplasmic dynein motor proteins (herein termed dynein) primarily mediate inward cargo carrier movement and Golgi positioning. These motors move along microtubules toward microtubule minus-ends embedded in centrosomes. Centripetal motility is controlled by a host of regulators whose precise functions remain to be determined. Significantly, a specific Golgi receptor for dynein has not been identified. This has impaired progress toward elucidation of membrane-motor-microtubule attachment in the periphery and, after inward movement, recycling of the motor for another round. Pericentrosomal positioning of the Golgi apparatus is dynamic. It is regulated during critical cellular processes such as mitosis, differentiation, cell polarization, and cell migration. Positioning is also important as it aligns the Golgi along an axis of cell polarity. In certain cell types, this promotes secretion directed to the proximal plasma membrane domain thereby maintaining specializations critical for diverse processes including wound healing, immunological synapse formation, and axon determination. |
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Authors:
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Smita Yadav; Adam D Linstedt |
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Publication Detail:
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Type: Journal Article; Review Date: 2011-05-01 |
Journal Detail:
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Title: Cold Spring Harbor perspectives in biology Volume: 3 ISSN: 1943-0264 ISO Abbreviation: Cold Spring Harb Perspect Biol Publication Date: 2011 May |
Date Detail:
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Created Date: 2011-05-03 Completed Date: 2011-09-09 Revised Date: 2013-05-02 |
Medline Journal Info:
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Nlm Unique ID: 101513680 Medline TA: Cold Spring Harb Perspect Biol Country: United States |
Other Details:
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Languages: eng Pagination: - Citation Subset: IM |
Affiliation:
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Department of Biological Sciences, Carnegie Mellon University, Pittsburgh, PA 15213, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Apoptosis Axons / metabolism, ultrastructure Biological Transport Cell Differentiation Cell Membrane / metabolism, ultrastructure Cell Movement Cell Polarity Centrosome / metabolism Dendrites / metabolism, ultrastructure Golgi Apparatus / physiology*, ultrastructure Intracellular Space / metabolism Mammals / metabolism* Microtubules / metabolism Molecular Motor Proteins / metabolism, physiology |
| Chemical | |
Reg. No./Substance:
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0/Molecular Motor Proteins |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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