Functions and Regulation of Circular Dorsal Ruffles

Cells construct a number of plasma membrane structures to meet a range of physiological demands. Driven by juxtamembrane actin machinery, these actin-based membrane protrusions are essential for the operation and maintenance of cellular life. They are required for diverse cellular functions, such as...

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Main Authors: Hoon, Jing-Ling., Wong, Wai-Keung., Koh, Cheng Gee
Other Authors: School of Biological Sciences
Format: Journal Article
Language:English
Published: 2013
Subjects:
Online Access:https://hdl.handle.net/10356/101817
http://hdl.handle.net/10220/11229
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author Hoon, Jing-Ling.
Wong, Wai-Keung.
Koh, Cheng Gee
author2 School of Biological Sciences
author_facet School of Biological Sciences
Hoon, Jing-Ling.
Wong, Wai-Keung.
Koh, Cheng Gee
author_sort Hoon, Jing-Ling.
collection NTU
description Cells construct a number of plasma membrane structures to meet a range of physiological demands. Driven by juxtamembrane actin machinery, these actin-based membrane protrusions are essential for the operation and maintenance of cellular life. They are required for diverse cellular functions, such as directed cell motility, cell spreading, adhesion, and substrate/matrix degradation. Circular dorsal ruffles (CDRs) are one class of such structures characterized as F-actin-rich membrane projections on the apical cell surface. CDRs commence their formation minutes after stimulation as flat, open, and immature ruffles and progressively develop into fully enclosed circular ruffles. These “rings” then mature and contract centrifugally before subsiding. Serving a critical function in receptor internalization and cell migration, CDRs are thus highly dynamic but transient formations. Here, we review the current state of knowledge concerning the regulation of circular dorsal ruffles. We focus specifically on the biochemical pathways leading to CDR formation in order to better define the roles and functions of these enigmatic structures.
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spelling ntu-10356/1018172022-06-07T00:24:36Z Functions and Regulation of Circular Dorsal Ruffles Hoon, Jing-Ling. Wong, Wai-Keung. Koh, Cheng Gee School of Biological Sciences DRNTU::Science::Biological sciences::Molecular biology Cells construct a number of plasma membrane structures to meet a range of physiological demands. Driven by juxtamembrane actin machinery, these actin-based membrane protrusions are essential for the operation and maintenance of cellular life. They are required for diverse cellular functions, such as directed cell motility, cell spreading, adhesion, and substrate/matrix degradation. Circular dorsal ruffles (CDRs) are one class of such structures characterized as F-actin-rich membrane projections on the apical cell surface. CDRs commence their formation minutes after stimulation as flat, open, and immature ruffles and progressively develop into fully enclosed circular ruffles. These “rings” then mature and contract centrifugally before subsiding. Serving a critical function in receptor internalization and cell migration, CDRs are thus highly dynamic but transient formations. Here, we review the current state of knowledge concerning the regulation of circular dorsal ruffles. We focus specifically on the biochemical pathways leading to CDR formation in order to better define the roles and functions of these enigmatic structures. 2013-07-11T07:57:30Z 2019-12-06T20:44:56Z 2013-07-11T07:57:30Z 2019-12-06T20:44:56Z 2012 2012 Journal Article https://hdl.handle.net/10356/101817 http://hdl.handle.net/10220/11229 10.1128/MCB.00551-12 22927640 en Molecular and cellular biology © 2012 American Society for Microbiology.
spellingShingle DRNTU::Science::Biological sciences::Molecular biology
Hoon, Jing-Ling.
Wong, Wai-Keung.
Koh, Cheng Gee
Functions and Regulation of Circular Dorsal Ruffles
title Functions and Regulation of Circular Dorsal Ruffles
title_full Functions and Regulation of Circular Dorsal Ruffles
title_fullStr Functions and Regulation of Circular Dorsal Ruffles
title_full_unstemmed Functions and Regulation of Circular Dorsal Ruffles
title_short Functions and Regulation of Circular Dorsal Ruffles
title_sort functions and regulation of circular dorsal ruffles
topic DRNTU::Science::Biological sciences::Molecular biology
url https://hdl.handle.net/10356/101817
http://hdl.handle.net/10220/11229
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