Actin-based growth cone motility and guidance.

Mol Cell Neurosci

Department of Cell Biology, Emory University School of Medicine, Atlanta, GA 30322, United States; Center for Neurodegenerative Diseases, Emory University School of Medicine, Atlanta, GA 30322, United States; Department of Neurology, Emory University School of Medicine, Atlanta, GA 30322, United States. Electronic address:

Published: October 2017

AI Article Synopsis

  • Nerve growth cones are the tips of growing axons and can sense environmental cues to navigate to their target locations for proper neuron connection.
  • The actin cytoskeleton plays a crucial role in powering the movement and direction of these growth cones.
  • This review highlights the mechanisms of actin-driven motility, presents new research findings, and addresses unresolved questions about growth cone behavior.

Article Abstract

Nerve growth cones, the dilated tip of developing axons, are equipped with exquisite abilities to sense environmental cues and to move rapidly through complex terrains of developing brain, leading the axons to their specific targets for precise neuronal wiring. The actin cytoskeleton is the major component of the growth cone that powers its directional motility. Past research has provided significant insights into the mechanisms by which growth cones translate extracellular signals into directional migration. In this review, we summarize the actin-based mechanisms underlying directional growth cone motility, examine novel findings, and discuss the outstanding questions concerning the actin-based growth cone behaviors.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5587356PMC
http://dx.doi.org/10.1016/j.mcn.2017.03.001DOI Listing

Publication Analysis

Top Keywords

growth cone
16
actin-based growth
8
cone motility
8
growth cones
8
growth
5
cone
4
motility guidance
4
guidance nerve
4
nerve growth
4
cones dilated
4

Similar Publications

Introduction: The primary objective of this study was to assess the 3-dimensional position of the mandibular canal (MC) in different craniofacial patterns to know about the safe placement of temporary skeletal anchorage devices using cone-beam computed tomography (CBCT). The secondary objectives were to assess sex differences and correlate the MC position with various factors.

Methods: This prospective, observational study was conducted on 90 patients, divided into 3 groups based on the sagittal pattern: skeletal Class I, Class II, and Class III.

View Article and Find Full Text PDF

The aim of fungal treatment of organic matter for ruminants is the improvement of its degradability. So far, such treatment appears to be time-consuming and improvement has been modest. In previous work, we observed within three white rot species that there is modest () or low ( and ) variation in fiber degradation in wheat straw during seven weeks of incubation.

View Article and Find Full Text PDF

Purpose: To investigate the changes of root development before and after orthodontic traction of maxillary inverted impacted central incisors using CBCT and Mimics software.

Methods: Ten patients, who had a maxillary inverted impacted central incisor, were treated using a modified movable retractor combined with surgical eruption. Cone-beam computed tomography(CBCT) was taken before and after treatment.

View Article and Find Full Text PDF

Netrin-1, an essential extracellular protein, has gained significant attention due to its pivotal role in guiding axon and cell migration during embryonic development. The fundamental significance of netrin-1 in developmental biology is reflected in its high conservation across different species as a part of the netrin family. The bifunctional nature of netrin-1 demonstrates its functional versatility, as it can function as either a repellent or an attractant according to the context and the expressed receptors on the target cells including the deleted in colorectal cancer (DCC), the uncoordinated-5 (UNC5), DSCAM, Neogenin-1, Adenosine A2b and Draxin receptors.

View Article and Find Full Text PDF

Optogenetic Control of Receptor-mediated Growth Cone Dynamics in Neurons.

Mol Biol Cell

December 2024

Department of Neuroscience, Jefferson Center for Synaptic Biology, Vickie and Jack Farber Institute for Neuroscience, Sydney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA 19107.

Development of neuronal connections is spatially and temporally controlled by extracellular cues which often activate their cognate cell surface receptors and elicit localized cellular responses. Here, we demonstrate the use of an optogenetic tool to activate receptor signaling locally to induce actin-mediated growth cone remodeling in neurons. Based on the light-induced interaction of light between Cryptochrome 2 (CRY2) and CIB1, we generated a bicistronic vector to co-expresses CRY2 fused to the intracellular domain of a guidance receptor and a membrane-anchored CIB1.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!